Factors affecting the polishing effect of the mould

Update:14-08-2019
Summary:

First, the quality of steel Inhomogeneous surface hardn […]

First, the quality of steel

Inhomogeneous surface hardness or differences in characteristics tend to cause polishing difficulties, and various inclusions and pores in the steel are disadvantageous for polishing.

Second, the heat treatment process

Heat treatment affects polishing performance in many respects. The surface hardening steel is not conducive to polishing due to the increase in surface carbon composition. The increase in small oxide particles on the surface of the steel makes polishing difficult. Carburizing or decarburization on the surface of the steel causes a change in hardness, which causes difficulty in polishing.

Third, polishing technology and process equipment

The effect of different hardness on the polishing process, the hardness increases, the grinding difficulty increases, but the polished finish increases, because the hardness increases, the polishing time required to achieve a higher finish needs to increase, while the hardness increases, the over-polishing may correspond cut back. The influence of different steel grades on the polishing technology. For stainless steel mould steels, the grinding process is slightly different due to their extremely high surface finish. Before polishing, the surface should be ground to a fine sand number. *Important Stop the operation immediately after removing the last polishing mark during polishing.

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