Characteristics of manganese steel screen: manganese steel ore screen is mainly used to withstand harsh working conditions such as impact, extrusion and material wear. The damage form is mainly wear consumption, and some are broken and deformed. There are three kinds of wear: friction and wear in which the surfaces of metal components contact each other and move; Abrasive wear caused by other metallic or non-metallic materials striking the metal surface and erosion wear caused by the contact between flowing gas or liquid and metal. The wear resistance of wear-resistant steel ore screen depends on the material itself, while the wear-resistant steel ore screen shows different wear resistance under different working conditions. only the material itself and working conditions can determine its wear resistance. Cast wear-resistant steel and wear-resistant steel are mainly austenitic manganese steel. Under certain conditions, the low-alloy steel ore screen after appropriate heat treatment also has a good effect, while graphite steel is used to lubricate the working conditions of friction.
Manganese steel ore screen is especially suitable for impact abrasive wear and high stress grinding abrasive wear. It is often used to manufacture impact and wear-resistant castings such as ball mill liner, hammer head of hammer crusher, jaw plate of jaw crusher, grinding mortar wall and crushing wall of cone crusher, bucket teeth and wall of excavator, railway turnout, crawler shoe of tractor and tank. High manganese steel ore screen is also used for: bulletproof steel plate, safe steel plate, etc. High manganese steel ore screen is a typical wear-resistant steel with as cast microstructure of austenite and carbide. After water quenching at about 1000 ° C, the structure changes to a single austenite or austenite with a small amount of carbide, but the toughness is improved. Therefore, the mineral sieve mesh is called water toughening treatment. The most important feature of high manganese steel ore screen is that under the condition of strong impact and extrusion, the work hardening phenomenon occurs rapidly on the surface, so that the hardened layer has good wear resistance while maintaining the good toughness and plasticity of austenite in the heart. This is beyond other materials. However, the wear resistance of high manganese steel ore screen shows its advantages only when it has enough conditions to form work hardening, but it is very poor in other cases. The standard Mn13 high manganese steel ore screen, also known as Hadfield steel, was invented by the British Hadfield in 1882. The relevant national and international standards are as follows. The typical mn17 wear-resistant high manganese steel ore screen is to increase the amount of manganese on the basis of Mn13 steel, improve the stability of austenite and prevent the precipitation of carbide, so as to improve the strength and plasticity of ore screen steel and improve the work hardening ability and wear resistance of steel.