By grinding method of allows to the extent of the mold surface is smooth, smooth with the following factors:
 
① tool steel quality

② Heat treatment process

③ Polishing technology and process equipment
 
The polishing process equipment is generally considered the most important influencing factors. Proper polishing technology and process equipment with high quality tool steel and correct heat treatment process in order to get a satisfactory finish. Conversely, even with the best quality steel does not reach a high degree of mirror effect.
 
Tool steel quality
 
The uneven surface hardness of steel or characteristics, the differences tend to produce polished difficult. Steel inclusions and pores are not conducive to polishing.

Heat treatment process
 
Heat treatment is in many aspects will affect the polishing performance. Surface hardening of steel due to the increase in surface carbon component, its subtle organization is not conducive to polishing. Because small oxide particles of the surface of the steel to increase the polishing difficult. Carburizing or decarburization of the surface of the steel will cause the change in hardness, resulting in difficulties in polishing.



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