chrome ball mill

Steel ball quality not only affects the productivity of the size, also affect the ball consumption level, thereby affecting the cost of grinding media. The simple pursuit of high hardness and low consumption is wrong. High hardness and low consumption is not equal to low cost, high hardness and low consumption of the ball is often very high price. High hardness does not necessarily make the productivity increase, or even decline, only high productivity to make the consumption index decreased. Therefore, selection should be the primary standard of steel ball mill productivity and low cost of grinding media. Only the high productivity and low cost of grinding medium has good economic benefits. Economic efficiency is a necessary condition for the survival and development of enterprises.

In chrome ball mill steel austenite isothermal transformation curve of cast steel and steel have changed. Usually with the increase of the content of chromium carbide cast steel ball steel increases. Often form a network of carbides in the grain boundary, the number of carbide increased. This is due to the process of chromium carbide along the grain boundary in the steel ball mill speed. The precipitation process in high temperature zone of chromium carbide accelerated, and thus in the cooling process after the solidification of a large number of carbide appeared. And chromium as chromium diffusion process characteristics of chromium and influence on the process of carbon diffusion, improve the stability of austenite, eutectoid transformation starts late and Austenite Isothermal Decomposition C curve shifts to the right. Chromium of the effect of heat treatment process, according to the general water toughening treatment specifications for processing time, chromium carbide, difficult to dissolve. Eutectoid temperature also difficult to change, and austenite hard ^ so it is necessary to improve the solution treatment temperature 30-50 DEG C to get required by the organization.