The two main components of the moving jaw and the fixed jaw are the two jaw plates. On the moving jaw of the jaw crusher, there is a piece of high manganese steel (or other wear-resistant) material with longitudinal teeth, concave and convex relative activity to the fixed jaw plate. The jaw plate is also called the tooth plate. These two tooth plates are important crushing tools for the jaw crusher operation. Relying on the relative movement of the tooth plates, they squeeze, bend and break the ore material to achieve the purpose of crushing.
Jaw plate is broken for stone, especially for high hard materials to do continuous strong pressure load operation, and material, and material interaction, so that the material produces chisel and jaw wear. Under the working conditions of crushing materials, the jaw plate material is gradually lost and thinner, and the strength and toughness continue to decrease. Serious wear, deformation and fracture will make the porcelain plate lose its crushing effect, and the jaw crusher can not crushing work normally and effectively.
In order to achieve the purpose of extending the use time of the tooth plate and improving the output of the equipment, the casting must have a tough and wear-resistant shell and high-resistant core tissue. The high manganese steel containing various forms of carbide will be very suitable under the working conditions of the tooth plate.
High manganese steel belongs to the steel type with high carbon content, and the carbon amount in high manganese steel plays an important role in wear resistance. In general, with the increase of carbon, the hardness of the carbon content is conducive to improve the wear resistance of steel. But under the condition of strong impact, in order to make the steel have good plasticity, toughness and processing hardening, the carbon content should be reduced appropriately. Manganese is the main element in high manganese steel. When the amount of carbon is certain, with the increase of manganese content, the strength and toughness of steel will also increase. So now most jaw crusher manufacturers and sand machine manufacturers are mainly using high manganese steel jaw plate
