A method for improving the wear resistance of automobile glass concave mold

Abstract

The invention relates to a method for improving the abrasion resistance of an automobile glass die. The method for improving the abrasion resistance of the automobile glass die comprises the following steps: firstly carrying out sand blasting on the automobile glass die, then carrying out low-temperature local heating on the surface of the automobile glass die, and carrying out plasma spraying for forming a zirconium oxide ceramic layer. Compared with the prior art, the method for improving the abrasion resistance of the automobile glass die has the advantages of high temperature resistance, high hardness, wear resistance, strong adhesion and the like.

Description

technical field [0001] The invention relates to an automobile glass mold, in particular to a method for improving the wear resistance of an automobile glass concave mold. Background technique [0002] At present, domestic and foreign automotive glass tempering mold die materials are all high-temperature-resistant stainless steel materials, and its grade is 310S. This material is characterized by high temperature resistance and corrosion resistance, but the material has a low Mohs hardness, only 4.5, which is not wear-resistant enough. , especially when dealing with glass with large arch height, small curvature, and deep curvature, the sides of the mold are easy to wear, causing defects such as mold marks, scratches, and edge bursts on the edge of the glass, resulting in poor appearance of the glass and causing mass complaints from customers , reducing customer satisfaction. In the production process, in order to solve these defects, it is necessary to continuously grind and...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic and foreign automotive glass tempering mold die materials are all high-temperature-resistant stainless steel materials, and its grade is 310S. This material is characterized by high temperature resistance and corrosion resistance, but the material has a low Mohs hardness, only 4.5, which is not wear-resistant enough. , especially when dealing with glass with large arch height, small curvature, and deep curvature, the sides of the mold are easy to wear, causing defects such as mold marks, scratches, and edge bursts on the edge of the glass, resulting in poor appearance of the glass and causing mass complaints from customers , lower customer satisfaction

In the production process, in order to solve these defects, it is necessary to continuously grind and polish the worn part of the die, and the frequency is relatively high. When 400 pieces of glass are produced, the die must be pulled out of the high-temperature furnace at about 700°C to cool down. , before polishing can be carried out. After polishing, the concave mold must be sent to the furnace for reheating. The whole process takes about 2 hours, which greatly affects the production capacity of the equipment and wastes a lot of power consumption.

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