As stone-crushing equipment, the jaw crusher has heavy work and harsh working conditions.
Even if it is of high quality and equipped with an advanced jaw crusher, abrasion is inevitable. Among them, the jaw plate is its main easy-wearing part, which consumes a lot in the process of crushing.
Therefore, the selection of the jaw plate material is particularly important.
To help you understand the jaw crusher better and purchase a good jaw crusher with a better price, operate and maintain the jaw crusher easily. We will introduce in detail the commonly used material types for the jaw plate of the jaw crusher as below:
- High manganese steel
High manganese steel is the traditional material of the jaw plate of the jaw crusher. It has good toughness and good deformation and hardening ability. However, due to the unreasonable structure of the jaw crusher, the opening angle between the moving and fixed jaw plates is too high. Large, easy to cause abrasive sliding, resulting in insufficient deformation and hardening of high manganese steel, the lower surface hardness of the jaw, large short-cut abrasive cutting, and faster wear of the jaw.
- Medium manganese steel
Due to the low initial hardness and low yield strength of high manganese steel, under non-strong impact conditions, its work hardening is insufficient, and it is easy to rheology and cut. Therefore, in order to improve the service life of the jaw plate of the jaw crusher, the technicians further developed and used medium manganese steel.
- Composite of high chromium cast iron &high manganese steel
Although high-chromium cast iron is an excellent wear-resistant material, because of its poor toughness, it will directly crack or deform and peel off when impacted or squeezed by the material. Therefore, it is not better to use high-chromium cast iron to make jaw plates. select. In recent years, high-chromium cast iron has been used for inlay casting or bonding on high-manganese steel jaw plates to form a composite jaw plate, which gives full play to the high wear resistance of high-chromium cast iron and the high toughness of high-manganese steel, making the use of jaw plates The life span has been significantly improved.
- Low alloy cast steel
Medium-carbon low-alloy cast steel is currently a widely used wear-resistant material, mainly due to its high hardness and appropriate toughness, which can resist the cutting action of the material and the fatigue peeling caused by repeated extrusion of the material. Shows good wear resistance. At the same time, medium-carbon low-alloy cast steel can also be adjusted in composition and heat treatment process, so that the hardness and toughness can be changed in a large range to meet the requirements of different working conditions.
The above four are the materials often used for jaw plates of jaw crushers. After analysis and comparison, it is not difficult to see that low-alloy cast steel makes the jaw plates of jaw crushers more high-yield and wear-resistant and has a longer service life. Therefore, users are buying jaws Don’t pay too much attention to the price of the equipment when using the crusher, believe that you get what you pay for, pay attention to factors such as the selection of materials, configuration, and performance of the equipment, and seek a low price in the same quality.