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SHENYANG HARD WELDING SURFACE ENGINEERING CO.,LTD

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  • Application Of Bimetal Hardfacing Wear Plate
    Cement industry: separator blades, vertical mill lining, air guide cones, conveying pipes, vibrating screens, silos, etc. Fan industry: fan impeller, cyclone separator, fan blade, rear disc liner, fan outlet, wear parts, etc. Iron and steel industry: distributor chute, silo liner, sliding slope, screen, blast boiler bell cover, skip car, blast boiler reinforced steel plate, sintering feed cylinder, pipeline, distribution slab, slag chute, Exhaust fan, blast furnace tank liner, dry quenching coke tank liner, coke pushing car sliding plate bottom liner, coke blocking car sliding plate bottom liner , sintering machine single-roll crusher, scraper, water beam and grid plates repair and production, etc. Thermal power industry: fan impellers, coal ash pipelines, silos, conveying troughs, coal conveying parts, hopper linings, burner nozzles, etc. Coal industry: Cone wear-resistant linings of bucket wheel excavators, mid-trough plates of scraper-type coal conveyors, conveying troughs, hoppers, mine hoisting skips, pipelines and chutes of coal washing plants. Coal bunker lining, scraper conveyor bottom plate, sieve plate, etc. Other industries: solar glass, mining machinery, construction machinery, coal mining machinery, wear-resistant fan manufacturing, brick making, sand selection, sand mining, etc. Directly provide users with surfacing plates, and the users will cut the materials by themselves, and tailor the welding to complete the on-site construction projects, such as silos, chutes, large buckets, stacking equipment, etc. Low-stress and small-impact abrasive wear, medium-impact rolling wear, high-temperature erosion wear, intermetallic wear, and strong impact wear conditions. It is trusted and praised by end users such as Hyundai Steel, Nippon Steel, ArcelorMittal in Europe, Rio Tinto Mine in Australia, Newmont Mining Company in the United States, and Caracas Iron Mine in Brazil. And was named "2009 Excellent Supplier" by South Korea's Samsung Group.

    2021 07/20

  • Selection Of Wear Plate Products
    Choosing Hard-plate composite wear-resistant steel plates can bring you: To improve economic benefits: improve equipment operation rate, reduce losses from shutdown and maintenance, increase production capacity, and increase benefits; Reduce production costs: reduce the number of workers, benefit from a long-term investment, and cost-effective; Improve the production environment: avoid dripping and dripping, which is good for environmental protection and cleanliness of the plant; Protect the health of workers: reduce working hours in harsh environments, reduce high-altitude and narrow-space operations, and reduce work intensity; Increase social benefits: greatly reduce the use of ordinary steel plate materials, and "make use of scientific and technological progress to create value for society". How to choose Hard-plate wear-resistant products: There are four types of bimetal composite wear-resistant steel plates HP100 resistant to low-stress abrasive wear HP200 resistant to low stress and medium impact abrasive wear HP300 resistance to high temperature wear (600℃-1000℃) HP400 strong impact resistant abrasive wear Which model to choose should be analyzed according to the following content Working condition analysis: wear form, surrounding environment, material parameters, mutual relationship, etc.; Original data: materials used, service life, replacement time, etc.; Customer expectations: life expectancy, cost planning, other needs, etc.; Material selection principles: element analysis, high-quality principles, application principles, economic principles; Product selection: bimetal composite wear-resistant steel plate, Vendor selection: professional level, price system, quality performance, specifications and models, service system, delivery cycle, industry certification, etc.; Model selection: overall thickness, wear resistance thickness, deviation requirements, etc.; Service selection: standard steel plate, processing by ruler, processing by drawing, on-site construction, etc.; If you need assistance in model selection, please contact our sales or technical personnel.

    2021 07/19

  • Hard-plate Service Aim
    Sales service is an important part of the company's business activities. Service quality is a part of product quality, is the company's ability to guarantee quality, and is related to the company's image and reputation. In order to strengthen the sales and service work, we specially made the following regulations on the sales and service management: 1. Pre-sale service: Pre-sale service refers to the relevant service (including technical consultation) before the user places an order; The sales staff must understand the user`s requirements in detail before placing an order, and achieve 5W3H, such as: what product needs to be purchased, is it standard equipment or special equipment, some products and components adopt international standards, national standards or the company`s own standards. Any special requirements, etc., must be detailed and accurate. If necessary, please provide drawings and technical documents. If necessary, please ask technical personnel to participate. Comprehensively understand the user's conditions, such as: kinetic energy supply (water, electricity, gas) capacity, whether there is experience in use, how to maintain power, etc. According to the user's requirements and conditions, discuss the equipment selection plan with the user, truthfully introduce the company's product variety, performance, price, advantages, unique technology, etc., explain the samples to the user, visit and introduce our previous projects, Recommend the best cost-effective products, be responsible to the users, consider them for the sake of users, and assist users to choose the products with high performance, low price, best, and most in line with the requirements. To further understand the other needs of users, such as: transportation methods, whether commissioning services and technical training are required, whether to order spare parts, etc., introduce the company's service items and product warranty regulations, and make promises to users to maximize user satisfaction. I feel that my consumer rights are fully guaranteed. The pre-sales service personnel must do: enthusiasm, kindness, sincerity, and credibility, and never allow a cold attitude, technically evasive, and perfunctory to users. 2. On-sale service: On-sale refers to the service during the period from the signing of the contract to the delivery of the product to the user; Business contracts, technical agreements and product quality assurance clauses must be detailed and accurate, and comply with the standards required by the contract and the company`s regulations. Contract review shall comply with relevant national standards and regulations. Users who have pre-shipment acceptance requirements should be notified in time, actively assist users in testing and acceptance, and fully verify that the product conforms to the contract. The storage and transportation of the products are finally confirmed in accordance with the quality standards of the country and the company to ensure that it is foolproof. Guarantee the completeness, accuracy and validity of the complete set of products and technical documents and certificates. Go through the formalities of acceptance and delivery, and keep the required records. The sales service must be done: careful and thoughtful, safe and secure, and in compliance with specifications. 3.After-sales service: After-sales service refers to the delivery of the product to the site, the installation and commissioning service and the warranty service after being put into use; The contract stipulates to solicit Party A`s opinions, and promptly dispatch installation and commissioning personnel or maintenance personnel to the site as required, and complete the tasks within the specified time. User technical training must be fully prepared in advance, combining theory and practice to ensure the training effect. Actively assist users in determining the installation plan, and preparatory work must be done to ensure the quality of the installation. Carefully debug the equipment, compile the best procedures and specifications, so that the equipment can exert its best performance. Explain to the user the safe use and maintenance precautions of the equipment, and the details of the vulnerable parts, so that the user can use the equipment and products handily, and ensure that the equipment is in the best technical state for a long time. The product quality problems reported by users should be highly valued, a decision shall be made within 24 hours, and the user shall be answered without delay. After-sales service must be done: respond quickly, be anxious to users, troubleshoot quickly, and ensure user production. Visit customers regularly, listen to and adopt customer opinions and suggestions, improve quality and service, at least once a year.

    2021 07/13

  • Statement Of Surface Cracks Of Composite Wear-Resistant Steel Plates
    The production process of wear-resistant alloy steel plate is made by metallurgical surfacing. The welding current is generally 300-500A, and the temperature of the welding arc reaches 6000-7000 ℃. The instant high temperature makes the welding wire and the mother plate reach the melting point to form a molten pool (ie weld bead). ), and melt the alloy powder added to the molten pool to form a surfacing layer. During the surfacing welding process, the temperature of the mother plate adjacent to the molten pool will reach 600-800℃, or even higher. Because the mother plate is made of A3 low carbon steel with better toughness and the wear layer is high carbon and high chromium, during the hardfacing welding process , The temperature difference of each part of the motherboard is very large, resulting in extremely uneven expansion, contraction and deformation. In the welding process, in order to ensure the overall process performance of the wear-resistant plate, it is necessary to fasten the motherboard firmly so that it cannot be deformed freely. In addition, the wear-resistant layer is metallurgical surfacing on the welding wire formed by a large amount of alloy powder. On the motherboard, a typical high-hardness material is formed. Due to the large difference in thermal expansion coefficient between the surfacing layer and the motherboard, the A3 low-carbon steel motherboard can withstand greater thermal deformation, while the high-hardness surfacing layer can withstand thermal deformation. Its capacity is almost zero, so it generates a great thermal stress inside. If this stress is not released immediately, problems such as breaking, cracking, and shedding of the wear-resistant layer are prone to occur. In the cooling process after thermal deformation, in order to release the welding stress existing in the surfacing composite steel plate, many cracks of different sizes and a small number of longitudinal cracks will be generated on the surface of the hardfacing layer perpendicular to the weld bead. This crack is the result of stress release, therefore, if there are no cracks or very few cracks on the surface of the wear-resistant composite board, it is definitely an unqualified product! Our company's crack inspection standards for the wear-resistant alloy steel plates are: all wear-resistant alloy steel products are allowed to have uniformly distributed transverse cracks and a small number of longitudinal cracks. The length of the crack is less than 3 -6 welds (determined by the thickness of the wear layer), the width is less than 0.4-0.8mm (by the thickness of the wear layer), the depth is less than the thickness of the alloy layer, and no through cracks are allowed.

    2021 07/12

  • Seven Advantages Of Surfacing Composite Wear-Resistant Materials
    1. Excellent wear resistance The chemical composition of the alloy wear-resistant layer has a carbon content of 4 to 5% and a chromium content of 25 to 30%. The volume fraction of Cr7C3 carbides in the metallographic structure is more than 50%. The macroscopic hardness is HRC56 to 62. The hardness is HV1400~1800. Because the carbides are distributed vertically in the direction of wear, even when compared with cast alloys of the same composition and hardness, the wear resistance is more than doubled. The wear resistance comparison with several typical materials is as follows: (1) comparison with low carbon steel; 20~25:1 (2) comparison with high chromium cast iron; 1.5~2.5:1 2. Good impact resistance The base plate of composite wear-resistant material is low carbon steel or low alloy. Tough materials such as stainless steel reflect the superiority of bimetal. The wear-resistant layer resists the wear of the wear medium, and the substrate bears the load of the medium, so it has good impact resistance. It can withstand the impact and wear of the high drop hopper in the material conveying system. 3. Better heat resistance The alloy wear-resistant layer is recommended to be used under ≤600℃. If vanadium, molybdenum and other alloys are added to the alloy wear-resistant layer, it can withstand high temperature wear of ≤800℃. The recommended operating temperature is as follows Ordinary carbon steel substrate is recommended to be used under 380℃; low alloy heat-resistant steel plate (15CrMo, 12Cr1MOV, etc.) is recommended to be used under 540℃; heat-resistant stainless steel substrate is recommended to be used under 800℃ . 4. Good corrosion resistance The alloy layer of the composite wear-resistant material contains a high percentage of metallic chromium, so it has certain anti-rust and corrosion resistance. It can be used to prevent coal sticking when used in coal dropping drums and hoppers. 5. Complete varieties and specifications wear-resistant steel plate has complete specifications and many varieties, and has become a commercial series. The thickness of the wear-resistant alloy layer is 3-20mm. The thickness of the composite steel plate is at least 6mm, and the thickness is not limited. At present, the standard wear-resistant steel plate can be provided with 1200 or 1450×2000mm, and it can also be customized and processed according to the size of the drawing according to user needs. Wear-resistant steel plates are now divided into three types: ordinary type, impact-resistant type and high-temperature type. Ordering high-temperature wear-resistant and impact-resistant composite steel plates should be explained. 6. Convenient processing performance The composite wear-resistant material can be cut, bent, welded and punched, and it can be processed into various parts that can be processed by ordinary steel plates. The cut wear-resistant steel plates can be tailor-welded into various engineering structural parts or parts. 7. Functions and features Can be welded, good wear resistance.

    2021 07/09

  • How to Identify The Quality Of Wear-Resistant Steel Plates
    Appearance Quality 1. Flatness: The four corners of the flat plate are on the ground, 2. Welding cracks: evenly spaced, small cracks, not wide; 3. hardfacing layer: no obvious unevenness 4. Welding defects: within a reasonable range; 5. Surface spray paint: the paint layer is evenly thin and thick, putty, etc.; 6. Edge cutting on all sides: straight, no burrs; the large plasma cutting machine is well formed, Intrinsic quality 1. Wear-resistant layer thickness: Measured after polishing, the hardfacing layer is obvious, take multi-point measurement and average value; 2. The total thickness of the steel plate: controlled within the allowable range, ±0.5mm 3. Hardness: within the required range, HRC55-62 4. Composition: alloy composition; 5. Metallography: Metallographic analysis;

    2021 07/06

  • What Is The Difference Between Bimetal Wear-Resistant Steel Plate And Hardened Wear-Resistant Steel Plate?
    1. Definition: ⑴Bimetal wear-resistant steel plate refers to the composite high-alloy wear-resistant layer on the substrate of ordinary steel plate by hardfacing method, combining the wear-resistant performance of the wear-resistant layer and the load-bearing, deformability and weldability of the substrate. The hardness of the wear-resistant layer is generally between HRC52-64. ⑵ Hardened wear-resistant steel plate refers to a low-alloy steel plate that is hardened by quenching during the rolling process or the low-alloy steel plate is heat-treated and quenched and hardened. The hardness is generally HB350-500. 2. wear resistance and mechanism The wear-resistant layer of the bimetal wear-resistant steel plate is a high-alloy component. There are a large number of high-hardness alloy carbides (about HV1600) embedded in the matrix in the metallographic structure, which are the main carbides that play a role in anti-wear. The actual micro hardness of the wear layer is much higher than the measured macro hardness. The strengthening method is the same as that of cemented carbide. Hardened wear-resistant steel plate is quenched and hardened as a whole, and there is martensite in the metallographic structure to increase the overall hardness, and the micro-hardness and macro-hardness are basically the same. Everyone is familiar with the two materials used for tools: cemented carbide and T10. Even if the macroscopic hardness of the quenched T12 steel and cemented carbide is basically the same, the wear resistance of cemented carbide is much higher than that of T12 steel. The reason is that there are a lot of carbides in the cemented carbide. 3. Temperature resistance The hardened wear-resistant steel plate will gradually lose its hardness when used at a temperature higher than 250℃, which greatly reduces the wear resistance. The welding process will also reduce the hardness near the weld; The wear-resistant layer of the bimetal wear-resistant steel plate is of high alloy composition, and it has the effect of secondary hardening at a certain temperature, and it can generally work below 650°C. 4.Process performance Hardened wear-resistant steel plates can be punched mechanically, but bimetal wear-resistant steel plates cannot be punched mechanically. 5. comprehensive comparison \ Hardened wear-resistant steel plate Bimetal wear-resistant steel plate Hardening method Quench hardening Hardfacing wear-resistant alloy Alloying elements Si and Mn Cr, Mo, V and B etc. Hardness HB350-500 HRC52-64 Wear resistance generally very good Temperature resistance poor excellent Corrosion resistance same as ordinary steel plat Good Machining by mechanical method yes no Cutting method Flame cutting Plasma cutting Processing performance excellent normal

    2021 06/29

  • How Much Do You Know About High-Temperature Heat-Resistant And Wear-Resistant Steel Plates?
    Refers to high-temperature wear-resistant steel plates, everyone may not know very well. In view of this, we will give you a brief introduction, hoping to bring some knowledge to consumers. High-temperature wear-resistant steel plate is a plate used in large-area wear conditions. It is formed by hardfacing welding on ordinary steel plates, heat-resistant steel plates, and stainless steel plates to form alloy wear-resistant layers with a volume fraction of more than 50% Cr7C3 carbides. Wear-resistant steel plates have high wear resistance, impact resistance, deformability and weldability. They can be processed into engineering parts like steel plates, such as crimping, cutting and punching, and processed into engineering parts to meet the needs of wear-resistant industrial and mining operations. High-temperature wear-resistant steel plate is a kind of wear-resistant composite material produced by advanced composite manufacturing technology. The wear-resistant layer is made of high-grade wear-resistant alloy, which is an advanced wear-resistant composite material in the industrial field.Using the alloy system commonly used in the international wear-resistant composite steel plate, it has excellent resistance to abrasive wear. The method of metallurgical fusion is used to achieve metallurgical bonding between the wear-resistant layer and the substrate. The thickness of the wear-resistant layer is 3.5~12mm, the wear resistance is much higher than heat-treated wear-resistant steel and cast wear-resistant cast iron, and the wear resistance is much higher than spray welding or thermal spraying methods; Since the base plate of the high temperature heat-resistant and wear-resistant steel plate adopts a low-carbon steel plate with good plasticity, it can absorb energy during the impact process. Therefore, the wear-resistant composite steel plate has strong impact resistance and crack resistance, and can be applied to vibration , Under strong impact conditions; high-temperature wear-resistant steel plates can be made into standard size steel plates, which are light in weight and convenient and flexible in processing. Due to the soft substrate, it can be cold-formed inward, and can be cut with plasma arc, carbon arc and other heat sources. It can be tailor-welded to shape, making the field welding work time-saving and convenient. Therefore, this material is in line with the current mainstream international manufacturing that uses welded structures instead of cast structures to reduce the weight of the structure.

    2021 06/28

  • How To Choose Wear-Resistant Liner
    Wear-resistant liner refers to the wear-resistant steel plate processed by cutting, coil deformation, perforation and welding, etc., into various wear-resistant liners, such as conveyor liner, coal feeder bottom plate/cyclone inverted cone With liners, wear-resistant blades, etc., wear-resistant life can be increased by more than 15 times compared with ordinary steel plates. The wear-resistant steel plate used to make the wear-resistant steel plate is an alloy wear-resistant layer mainly composed of Cr7C3 carbides with a volume fraction of more than 50% by surfacing welding on ordinary steel plates, heat-resistant steel plates, and stainless steel plates. Wear-resistant steel plate has the properties of high wear resistance, impact resistance, deformability and weldability. It can be directly processed like steel plate by crimping, cutting and punching, and processed into engineering parts to meet the wearable industrial and mining use. Compared with many wear-resistant materials, wear-resistant composite steel plates have their irreplaceable salient features: 1. The chemical composition of the high wear resistance alloy layer contains carbon content of 4~5%, chromium content as high as 25~30%, the volume fraction of Cr7C3 carbide in its metallographic structure reaches more than 50%, and the macroscopic hardness is HRC56~62 , The hardness of chromium carbide is HV1400~1800, which is higher than the hardness of quartz in sand and rock HV800~1200. Because the carbides are distributed vertically in the direction of wear, even when compared with cast alloys of the same composition and hardness, the wear resistance is more than doubled. The comparison of wear resistance with several typical materials is as follows: (1) and low carbon steel; 20~25: (2) and high manganese steel; 5~10: (3) and tool steel; 5~10: (4) and as-cast high chromium cast iron; 1.5~2.5: 2. Good impact resistance: The bottom layer of the wear-resistant composite steel plate is low-carbon steel or low-alloy. Tough materials such as stainless steel reflect the superiority of bimetal. The wear-resistant layer resists the wear of the wear medium, and the substrate bears the load of the medium, so it has good impact resistance. It can withstand the impact and wear of the high drop hopper in the material conveying system. 3. Better heat resistance: The wear-resistant layer is recommended to be used under ≤600℃. If vanadium, molybdenum and other alloys are added to the alloy layer, it can withstand high temperature wear at ≤800℃. The recommended operating temperature is as follows: Ordinary carbon steel substrate is recommended to be used under 380℃; low alloy heat-resistant steel plate (15CrMo, 12Cr1MoV, etc.) is recommended to be used under 540℃; heat-resistant stainless steel substrate is recommended to be used under Use at 800 ℃. 4. The alloy layer of the wear-resistant composite steel plate with good corrosion resistance contains a high percentage of metallic chromium, so it has certain anti-rust and corrosion resistance capabilities. It can be used to prevent coal sticking when used in coal dropping drums and hoppers. 5. The wear-resistant composite steel plate with strong applicability has complete specifications and many varieties, and has become a commercial series. The thickness of the wear-resistant alloy layer is 3-20mm. The thickness of the composite steel plate is at least 6mm, and the thickness is not limited. At present, the standard wear-resistant composite steel plate is available in 1200 or 1450×2000mm, and it can also be customized according to user requirements and according to the size of the drawing. Wear-resistant composite steel plates are now divided into three types: ordinary type, impact-resistant type and high-temperature type. Ordering high-temperature wear-resistant and impact-resistant composite steel plates shall be explained. 6. Convenient processing performance The wear-resistant composite steel plate can be cut, leveled, punched, bent and curled, and it can be made into flat plates, arc plates, cone plates, and cylinders. The cut composite board can be tailor-welded into various engineering structural parts or parts. The composite board can also be heated and pressed into a complex shape with a die. The wear-resistant composite steel plate can be fixed on the equipment by bolts or welding, which is convenient for replacement and maintenance. 7. High price performance. Although the manufacturing cost of the wear-resistant composite steel plate is increased, the service life is increased several times, which greatly reduces the maintenance cost and downtime loss. Its price performance is about 2 to 4 times higher than that of ordinary materials. The greater the material handling capacity, the more serious the equipment wear and tear, the more obvious the economic effect of using wear-resistant composite steel plates. Wear-resistant liner refers to the wear-resistant steel plate processed by cutting, coil deformation, perforation and welding, etc., into various wear-resistant liners, such as conveyor liner, coal feeder bottom plate/cyclone inverted cone With liners, wear-resistant blades, etc., wear-resistant life can be increased by more than 15 times compared with ordinary steel plates.Wear-resistant steel plate is an alloy wear-resistant layer mainly composed of Cr7C3 carbides with a volume fraction of more than 50% formed by surfacing welding on ordinary steel plates, heat-resistant steel plates and stainless steel plates. Wear-resistant steel plate has the properties of high wear resistance, impact resistance, deformability and weldability. It can be directly processed into processing links such as crimping, cutting and punching like steel plates, and processed into engineering parts to meet the needs of wear-resistant industrial and mining operations.

    2021 06/22

  • The Knowledge Of Anti- High Temperature Wear-Resistant Steel Plates
    1. Excellent wear resistance The chemical composition of the alloy wear-resistant layer has a carbon content of 4 to 5% and a chromium content of 22 to 28%. The volume fraction of Cr7C3 carbides in the metallographic structure is more than 50%. The macroscopic hardness is HRC60 to 65. The hardness is HV1400~1800. Because the carbides are distributed perpendicularly in the direction of wear, even when compared with cast alloys of the same composition and hardness, the wear resistance is more than doubled. The comparison of wear resistance with several typical materials is as follows: (1) and low carbon steel; 20~25:1 (2) and as-cast high chromium cast iron; 1.5~2.5:1 2. Good impact resistance: The base plate of the wear-resistant composite steel plate is low carbon steel or low alloy. Tough materials such as stainless steel reflect the superiority of bimetal. The wear-resistant layer resists the wear of the wear medium, and the substrate bears the load of the medium, so it has good impact resistance. It can withstand the impact and wear of the high drop hopper in the material conveying system. 3. Better heat resistance: The alloy wear-resistant layer is recommended to be used under ≤600℃. If vanadium, molybdenum and other alloys are added to the alloy wear-resistant layer, it can withstand high temperature wear of ≤800℃. The recommended operating temperature is as follows: Common carbon steel substrate is recommended to be used under the working condition of not higher than 380℃; Low-alloy heat-resistant steel plate (15CrMo, 12Cr1MOV, etc.) substrate is recommended to be used under working conditions not higher than 540℃; The heat-resistant stainless steel substrate is recommended to be used at no higher than 800°C.

    2021 06/21

  • Are Cracks Allowed On The Wear-Resistant Steel Plate?
    After observation, it will be found that there are many cracks on the surface of the wear-resistant composite steel plate. Is the crack on the wear-resistant steel plate a normal phenomenon? These cracks seem to be easy to worry about, fearing that the cracks of the wear-resistant composite steel plate will expand during use, or even break or fall off, which will affect the wear resistance. Let's do a detailed analysis of the causes of cracks. According to relevant information, it can be understood that the production process of wear-resistant composite plate is made by metallurgical hardfacing. The welding current is generally 350-500A, the temperature of the welding arc reaches 1000-1500℃, and the instantaneous high temperature makes the welding wire and the mother board reach the melting point. The molten pool (the so-called weld bead), and the alloy powder added to the molten pool is melted to form a hardfacing layer. During the hardfacing welding process, the temperature of the mother board adjacent to the molten pool will reach 600-800℃, or even higher. Since the mother board generally uses ordinary Q235 low carbon steel and the wear layer is high carbon and high chromium, during the surfacing welding process, The temperature difference of each part of the mother board is very large, resulting in extremely uneven expansion, contraction and deformation. Because the mother board is firmly fastened by the pressure plate around the mother board, it cannot be deformed freely, and the wear-resistant layer is a welding wire made of a large amount of alloy powder. Metallurgical surfacing is performed on the mother board to form a typical high-hardness and high wear-resistant material. Because the thermal expansion coefficient of the surfacing layer and the mother board is quite different, the mother board with good toughness can withstand greater thermal deformation, and The ability of the high-hardness surfacing layer to withstand thermal deformation is almost zero, so it generates a great thermal stress inside. If this stress is not released immediately, it will easily break, chip, and resist during the later processing (such as crimping). Problems such as shedding of the abrasive layer. In the cooling process after thermal deformation, in order to release the welding stress existing in the surfacing composite steel plate, many cracks of different sizes will be generated on the surface of the surfacing layer perpendicular to the weld bead. This crack is the result of stress release. It does not affect the use. Through analysis, we can understand that this worry about cracks is unnecessary. The wear-resistant composite steel plate is produced by welding technology, which belongs to metallurgical bonding and has excellent bonding performance. Cracks will not fall off or break during use. In terms of standards, you can refer to the relevant acceptance standards: 1. The length of the crack cannot exceed 10mm. 2, Rockwell hardness (HRC60-65). 3, the thickness and size of the wear-resistant layer 4. The quality of surfacing welding: whether there is peeling, porosity, adhesion of the surfacing layer, flatness, etc. 5. Metal composition of the wear-resistant layer, metallographic test data

    2021 06/16

  • Performance Characteristics Of Bimetal Composite Wear-Resistant Steel Plate
    Very high wear resistance: The thickness of the wear layer of the wear-resistant steel plate is 4-12mm and above 12mm, and the hardness of the wear-resistant layer can reach HRC60-65. The wear resistance is more than 14.6 times that of ordinary steel plates, and 5-10 times the performance of low alloy steel plates. It is high chromium The wear resistance of cast iron is more than 2-5 times, and the wear resistance is much higher than that of spray welding and thermal spraying. Better impact performance: The wear-resistant steel plate is a double-layer metal structure. The wear-resistant layer and the base material are metallurgically bonded. The bonding strength is high. It can absorb energy during the impact. The wear-resistant layer will not fall off. It can be applied to vibration and impact. Under the working conditions, this is beyond the reach of casting wear-resistant materials and ceramic materials. Very good temperature resistance: The wear-resistant steel plate alloy carbide has strong stability at high temperatures. The wear-resistant steel plate can be used within 500 ℃, and other special requirements can be customized. It can meet the conditions of use within 1200 ℃; ceramic, polyurethane, high Adhesive wear-resistant materials such as molecular materials cannot meet such high temperature requirements. Very good connection performance: The base material of the wear-resistant steel plate is ordinary Q235 steel plate, which ensures the toughness and plasticity of the wear-resistant steel plate, and provides strength against external forces. It can be connected with other structures by various methods such as welding, plug welding, and bolt connection. The connection is firm and not easy to fall off. , There are more connection methods than other materials; Very good selection performance: Wear-resistant steel plate chooses different thickness base materials, and surfacing welding alloy wear-resistant layers of different layers and thicknesses can obtain steel plates of different thicknesses and different purposes, and the maximum thickness can reach more than 30 mm; Very good processing performance: Wear-resistant steel plates can be processed into different specifications and sizes according to requirements, which can be processed, cold-formed, welded, bent, etc., which are convenient to use; they can be tailor-welded on-site, which makes maintenance and replacement work time-saving and convenient, and greatly reduces work intensity. High cost performance: The price of wear-resistant steel plate is higher than that of ordinary materials, but considering the service life of the product, comprehensive consideration of maintenance costs, spare parts costs and downtime losses, its performance-to-price ratio is much higher than that of ordinary steel plates and other materials.

    2021 06/15

  • Why Do Customers Choose The Bimetal Composite Wear-Resistant Plate Produced By Our Company To Solve The Problem Of Wear?
    The most competitive price 1. Mass production: Our company is a professional wear-resistant steel plate production service provider, automated production, large-scale operation, and has advantages in material supply, process, etc.; 2. Reasonable profit: Our goal is to become the No. 1 brand of wear-resistant steel plate in China. Market share is more important than profit. We pursue reasonable profit; 3. Technology promotion: to benefit customers, let more customers understand and use wear-resistant steel plates, let good products serve the society, and create social benefits; Product quality is guaranteed 1. It was the first to be engaged in the hardfacing wear-resistant steel plate industry in China. The products have passed the national ISO quality system certification, focusing on the research and development of product materials, and have 8 years of production experience; 2. Production of specialized automated equipment, continuous and stable production; 3. Years of experience in metallurgy, coal, electric power, mining, and cement industries, familiar with customer sites and usage conditions, strong pertinence, able to provide a comprehensive plan for the use of wear-resistant steel plates, and the only supplier of wear-resistant materials for many customers; The abrasion strength is HRC60-65, and the wear resistance is 14.6 times that of the same ordinary steel plate. We firmly believe that quality must be the pioneer for the enterprise to go further 4. A large amount of stock guarantees that customers need urgently, and can be processed and manufactured according to customer drawings; Guaranteed service quality 1. Provide pre-sales technical support, in-sales technical guidance, after-sales tracking services, perfect records of customer usage and problem feedback, and better provide quality services; 2. A master's degree in welding and materials from a prestigious school has many years of production and field experience to provide you with professional technical support; sales engineers can arrive at the site as soon as possible to provide technical support and services; 3. The company can rely on experts and professors from well-known colleges and universities at home and abroad to provide technical solutions for customers' practical problems and conduct special research;

    2021 06/09

  • What Are The Characteristics Of Hardfacing Wear-Resistant Steel Plates
    When it comes to HP100-400 surfacing wear-resistant steel plate, perhaps everyone knows that it is a wear-resistant steel plate. In fact, there are many models and types of wear-resistant steel plates. At this time, someone will ask what is hardfacing wear-resistant steel? What are its characteristics? Let's learn more about the wear-resistant steel plate through the introduction of the model HP100-400 of the wear-resistant steel plate. Wear Resistant Steel Plate refers to a special plate product designed for use under large-area wear conditions. At present, the commonly used wear-resistant steel plates are made of low-carbon steel or low-alloy steel with good durability and plasticity through hardfacing welding method to compound a certain thickness of alloy wear-resistant layer with high hardness and excellent wear resistance commodity. In addition, there are cast wear-resistant steel plates and alloy quenched wear-resistant steel plates. Wear-resistant steel plate is composed of low-carbon steel plate and alloy wear-resistant layer. The alloy wear-resistant layer is usually 1/3~1/2 of the total thickness. During operation, the matrix provides the strength, resistance, and plasticity against external forces, and the alloy wear layer provides the wear resistance required by the specified working conditions. There is a metallurgical connection between the wear-resistant steel plate alloy wear-resistant layer and the substrate. After special equipment, using automatic hardfacing welding technology, the high-hardness self-maintaining alloy welding wire is uniformly welded on the substrate. The composite layer has one to two layers or even multiple layers. During the composite process, because the alloy shortening ratio is different, it shows a uniform transverse direction. Cracks, this is a significant feature of wear-resistant steel plates. The alloy wear-resistant layer is mainly made of chromium alloy, and other alloy components such as manganese, molybdenum, niobium, nickel, etc. are also added. The carbides are scattered in the form of fibers in the metallographic arrangement, and the fiber direction and appearance are straight. The microhardness of carbide can reach above HV1700-2000, and the surface hardness can reach HRC60-65. Alloy carbide has strong stability at high temperature, adheres to high hardness, and also has excellent oxidation resistance. HP308 can be used completely and normally within 800 ℃. Wear-resistant layer manifestations include narrow channel (2.5-3.5mm), wide channel (8-12mm), curve (S, W), etc.; mainly chromium alloy is the main form, and manganese, molybdenum, niobium, nickel, and boron are added together. And other alloy components, the carbides in the metallographic arrangement are distributed in a fibrous shape, and the fiber direction and the appearance are straight. The carbide content is 40-60%, the microhardness can reach above HV1700, and the surface hardness can reach HRC60-65. Wear-resistant steel plates are mainly divided into HP100 anti-low-stress abrasive wear, HP200 anti-high-stress rolling wear or medium-impact abrasive wear, HP300 anti-high temperature wear, HP400 anti-strong impact abrasive wear, etc. The total thickness of the wear-resistant steel plate can reach 5.5 (2.5+3) mm at least, and the thickest can reach 30 (15+15) mm; the wear-resistant steel plate can roll wear-resistant pipes with a minimum diameter of DN400 or more, and can be processed into wear-resistant bends Head, wear-resistant tee, wear-resistant reducer. After reading the introduction of HP100-400 surfacing wear-resistant steel plate, do you have a deeper understanding of wear-resistant steel plate? The company's main wear-resistant steel plate models are: HP100 anti-low-stress abrasive wear, HP200 anti-high-stress rolling wear or medium impact abrasive wear, HP300 anti-high temperature wear, HP400 anti-strong impact abrasive wear.

    2021 06/08

  • 2017 SADE Group Summer Exchange Event
    2017 SADE Group Summer Exchange Event At 9:00 am on June 10th, 2017, SADE Group's summer exchange event was held as scheduled in Hard-plate. Senior leaders of the group visited and participated in the basketball game. Colleagues from the Group`s Intelligent Equipment Division, Distribution Division, A&T Division, as well as Surface Engineering Division felt the company`s [home culture" from the event. This exchange event combines elements of basketball, dance, bonfire dinner, songs and other aspects, making this summer more exciting and bringing a unique visual feast to the company`s employees. The atmosphere of the bonfire dinner was lively, and there was a hula dance at the beginning, allowing employees to linger in the exotic atmosphere while gaining a touch and a tacit understanding connected with the heart of the company. On June 11th, all the colleagues participating in the group introduced and exchanged ideas about their jobs. From this we can see the enthusiasm and passion of the brother company.

    2021 06/02

  • Friends come from afar - welcome Korean customers to visit our factory
    Friends come from afar - welcome Korean customers to visit our factory With the deepening of market development and the strengthening of cooperative relations, many customers have become closer and closer to Hard-plate. In early June, Hard-plate welcomed representatives of Korean customers to visit the factory, and Mr. Li Weiming, the general manager of our company, gave a warm reception. Representatives of the three parties conducted on-site exchanges in the production workshop of our factory, and we demonstrated the most advanced technology and technology. After that, the three parties exchanged in-depth cooperation details in the conference room. The customer expressed their recognition and praise of Hard-plate and looked forward to strengthening cooperation for mutual benefit and win-win results. Through in-depth exchanges, Hard-plate expects that the two sides will give full play to their respective strengths in.

    2021 05/31

  • Industry-University-Research Cooperation"-Liaoning Petrochemical University And Shenyang Hard Welding Surface Engineering Co., Ltd. Signed A School-Enterprise Cooperation Agreement
    Industry-University-Research Cooperation"-Liaoning Petrochemical University And Shenyang Hard Welding Surface Engineering Co., Ltd. Signed A School-Enterprise Cooperation Agreement In the afternoon of May 18, 2018, Shenyang Hard Welding Surface Engineering Co., Ltd. and Liaoning Petrochemical University held a school-enterprise cooperation signing ceremony at Liaoning Petrochemical University. This marks the formal establishment of a friendly cooperative relationship between Shenyang Hard Welding Surface Engineering Co., Ltd. and Liaoning Petrochemical University. Mr. Wang Maoting, Dean of School of Mechanical Engineering and Deputy Secretary of the Party Committee of Liaoning Petrochemical University, and Mr. Li Weiming, General Manager of Shenyang Hard Welding Surface Engineering Co., Ltd. shook hands cordially. The technology and human resources of universities and colleges, as well as advanced and mature technological achievements, improve the scientific research capabilities of enterprises, and transform scientific research results into productivity as soon as possible; also provide the school with an industry-university research base to escort the smooth progress of the school's scientific research projects , To achieve the goal of a win-win situation for both schools and enterprises. According to the cooperation agreement, the school and enterprise will make efforts to further improve the vocational education and training system, deepen the integration of production and education, carry out in-depth, multi-form and wide-field school-enterprise cooperation, and realize the organic combination and optimized allocation of school-enterprise resources. Jointly cultivate high-skilled talents urgently needed for economic and social development. The successful holding of this signing ceremony gave full play to the advantages of the resources, technology and talents of both schools and enterprises, established a platform for school-enterprise cooperation and education, and continuously promoted in-depth cooperation with schools, striving to form a shared education of talents, process management, achievement sharing, and responsibility The shared and close cooperation goal has laid the foundation and opened up a new situation for school-enterprise cooperation.

    2021 05/28

  • Welcome Russian Customers To Visit Our Factory
    In late June, Hard-plate welcomed international friends to inspect the factory. Let us warmly welcome the arrival of Russian customers with applause! Hard-plate General Manager Li Weiming personally received and accompanied the customer to visit the company's production plant, laboratory, process department, and technical department. Customers are very satisfied with the high performance and high quality of the production line equipment. After visits and in-depth exchanges, customers have a deeper understanding of Hard-plate and reached a further consensus on several cooperation intentions. Hard-plate has become a manufacturer praised and trusted by customers in the same industry by virtue of its strong technical strength, advanced technology, excellent product quality, and perfect service system. Hard-plate's willingness to "become an excellent company that provides comprehensive solutions for industrial wear" has enabled to win the trust of customers in the wear-resistant field and establish a good corporate image.

    2021 05/26

  • Global Chromium Carbide Trends and Opportunities
    Chromium carbide is used in various applications. Owing to its resistance to corrosion and extreme hardness, it is use as wear resistant coating. Due to its refractory nature, it can be wear resistant even at high temperatures. With more types of carbides taken in, chromium carbide is used as an added substance to help prevent unnecessary grain development to betters the hardness of the carbide. Chromium carbide is experiencing surging applications in energy, construction, and the mining industry all over the world, especially in China and the other developing countries in Asia Pacific and South East Asia. Chromium carbide in the mining industry, for example, is used in making chromium carbide overlay plates which find application in dragline buckets, truck beds, shovel buckets and excavator liners, dozer blades, and hoppers. In addition, chromium carbide also finds usage in making cutting tools and tubular hard-facing electrodes used for mining aluminum, coal, zinc ore, and minerals. Geographically, China is anticipated to sustain its leading position in the consumption of both chromium carbide and steel, in the steel industry. The development of infrastructure and other important industrial activities in the energy, cement, mining, and steel sectors in the nation is expected to boost the demand for particular industrial equipment which require chromium carbide as the raw material. This is predicted to fillip its demand.

    2021 04/29

  • New wear material Chromium Carbide Overlay Wear Plate
    New wear material helps prevent severe sliding wear in mining and quarrying applications New overlay plate helps save money and improves productivity in a wide range of applications through higher output and less maintenance. With its high proportion of extremely hard, multiple alloy complex carbides deposited on a mild steel backing plate, It is said to last much longer than common chromium carbide overlay (CCO) products. In particular, It is suitable for preventing sliding wear in industries such as quarrying, mining, cement, and recycling, as well as other areas where abrasive materials require the use of extremely hard surfaces. Overlay plate is delivered with an overlay thickness that is guaranteed to within ±10%. This is consistent throughout the material and between individual plates. The wear properties are also guaranteed throughout the overlay down to 75% of the overlay thickness. The remaining 25% of overlay is the transition layer necessary to maintain good bonding to the backing plate.

    2021 04/29

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