Characteristics and advantages of wear-resistant steel plates


Release time:

2021-12-24

Wear-resistant steel plate consists of low carbon steel plate and alloy wear-resistant layer, and the alloy wear-resistant layer is generally 1/3~1/2 of the total thickness.When working, the matrix provides comprehensive properties such as strength, toughness and plasticity,... To resist external forces. The alloy wear-resistant layer provides wear resistance to meet the requirements of the specified working conditions. The metallurgical bond between the alloy wear-resistant layer of the wear-resistant steel plate and the matrix.

Wear-resistant steel plate consists of low carbon steel plate and alloy wear-resistant layer, and the alloy wear-resistant layer is generally 1/3~1/2 of the total thickness.When working, the matrix provides comprehensive properties such as strength, toughness and plasticity,... To resist external forces. The alloy wear-resistant layer provides wear resistance to meet the requirements of the specified working conditions.

The metallurgical bond between the alloy wear-resistant layer of the wear-resistant steel plate and the matrix. Using special equipment and automatic welding technology, the high hardness self-protection alloy welding wire is uniformly welded on the matrix. The number of composite layers is one to two or even multiple layers. In the composite process, due to the different shrinkage rates of the alloy, uniform transverse cracks will appear for wear-resistant steel plate.

The wear-resistant layer of the alloy is dominated by chromium alloy, and other alloy components such as manganese, molybdenum, niobium and nickel are added. The carbide in the metallographic organization is fibrous, and the fiber direction is perpendicular to the surface. The microhardness of the carbide can be up to HV1700-2000 or more. The alloy carbide has strong stability at high temperatures and maintains high hardness. It also has good oxidation resistance and can be used normally within 500℃.

High chrome alloy wear-resistant steel plate is a kind of composite steel plate with special properties, which can be modified by high-pressure tools such as electric arc or laser. The selection of this material is relatively strict at present. It meets both the criteria of pressure and wear resistance and some parameters of condensation molding.

Due to the selection of materials and special properties of high-chromium alloy wear-resistant steel plate, it has a wide range of applications, high-strength abrasion resistance, impact resistance and wear resistance. Compared with other types of steel plates. The abrasion resistance of high chrome alloy wear-resistant steel plate is fully ten times more. From the point of view of the elasticity of the pulling force, the performance of this product is still good.

According to the professional and technical personnel of the industry, the performance of high chrome alloy wear-resistant steel plate is far more than that of ordinary material plates, so the cost is relatively high. But after careful accounting. According to the service life, the use of this steel plate is still quite economical, and it is cost-effective in terms of maintenance and downtime.

Spray molding technology is a promising preparation technology. It has great advantages in the molding and preparation of high alloy materials. The principle of jet forming technology for surfacing wear-resistant steel plate is to atomize the melted surfacing wear-resistant steel plate into finely dispersed droplets under the action of high-pressure inert gas, and then rapidly cool it to a supercooled state while flying at high speed. Then deposited on the collector before solidification, forming a continuous dense near-net billet. Wear-resistant steel plate jet forming technology greatly simplifies the process, shortens the production cycle, greatly reduces the cost of preparing near-net billets. The solidification speed is fast, the cooling rate is up to 103 K/s, which eliminates the macroscopic segregation of the organization and obtains the fine isometric organization.

 

 

 

Key words:

Wear-resistant steel plate


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