Application of High Manganese Steel in Roller Crusher - forum prawne

Divided into the common high manganese steel, high manganese steel alloying of high manganese steel and high manganese steel microalloyed, common high manganese steel are the main brands as ZGMnl3 (0.95% ~ 1.4% C, Mn 11% ~ 14%), for high manganese steel microstructure of austenite + carbide.Poor because of carbide, the toughness of the material.Generally need water toughening treatment, the castings of heating to 1050 ~ 1100 ? water, obtain a single austenite structure, high toughness.High manganese steel wear parts under the action of applied stress at work, will produce work hardening, surface hardness increases, the actual application results show that, the greater the stress of the wear parts of high manganese steel. The better the effect of work hardening. Higher surface hardness, wear resistance, the better, but at the low level of stress strain hardening effect is not obvious, and wear resistance.In order to improve the effect of strain hardening high manganese steel, by adding a certain amount of alloy elements and reduce the amount of manganese and manganese steel casting, formed in the water toughening treatment for austenitic manganese steel, reduced because of alloy elements, solid soluble in austenitic alloy elements to reduce, reduce the stability of austenite in low stress state has the good effect of work hardening.Casting of manganese steel grades are mainly ZGMn8, ZGMn8Cr2, etc.Therefore, as the roller crusher plate with high manganese steel material, should according to the working condition of broken stress size to choose different kinds of high manganese steel material, even to break larger granularity and hard materials, crushing impact stress is larger, can use ordinary high manganese steel casting, can give full play to the advantages of work hardening high manganese steel, improve the toothed plate wear resistance and service life.For the broken small material or low impact stress condition, can use carbon cast steel, medium manganese or alloy steel casting gear plate.When working conditions belongs to the roller crusher (http://www.hxjq-ballmill.com/pro/roller_crusher.html), the characteristics of the strain hardening of high manganese steel can not be fully made use of, in order to overcome the low initial hardness of high manganese steel, strain hardening effect is poor, the poor wear resistance, casting of carbon steel and alloy steel casting can be used as a tooth plate materials, without using high manganese steel.