Cutting Gear Manufacturer Talks about Heat Treatment Process of Cutting Gear Material for Coal Mining Machine

When cutting coal and rock, the cutter bears high periodic compressive stress, shear stress, and impact load. Although the hardness of coal is not very high, it often encounters hard mineral materials such as coal gangue. During the cutting process of coal and rock, friction and impact can also cause the temperature of the cutter to rise. In such complex working conditions, the cutter body of the cutter is required to be both wear-resistant and have good impact resistance. The cutter body is generally made of low alloy structural steel.
Material heat treatment process of rotary excavator cutter manufacturer
[42CrMo steel] has the characteristics of high strength, high hardenability, good toughness, small quenching deformation, and high creep and tensile strength at high temperatures. After heat treatment, 42CrMo steel has high fatigue resistance to multiple impacts and good low-temperature impact toughness.
[35CrMnSi steel] is also a material with good hardenability. After appropriate heat treatment, it can obtain comprehensive mechanical properties with good strength, hardness, toughness, and fatigue strength, which can adapt to the complex working conditions of coal mining production.
[Si Mn Mo quasi bainitic steel] is a new type of cutting tool body material developed by domestic scientific research institutions. Its characteristic is that after reasonable design of alloy composition, the material has good heat treatment process performance. After heat treatment, the strength, toughness, and wear resistance of the steel meet the requirements of cutting mechanical properties.
There are many types of steel that can be suitable for the cutting conditions of rotary excavators. During the cutting process, the appropriate material for the cutting blade can be selected based on the type of cutting and specific working conditions.