A wire drawing process for the surface of the mobile phone tray

Abstract

The invention discloses a mobile phone card holder surface drawing process which comprises the following steps: (2) preheating a card holder before drawing; (2) performing drawing, wherein a drawing liquid comprises the following components: a graphene lubricant, a silicone emulsion, an oiliness agent, an antioxidant, an anionic surfactant, a wearing resistant agent, a metal preservative and deionized water; (3) deoiling the drawn card holder, and washing with water after deoiling; (4) soaking the deoiled and washed card holder in a micro corrosion liquid for 1-15 minutes at a normal temperature, and washing with water after micro corrosion, wherein the micro corrosion liquid comprises sodium phosphate, sodium nitrate, sodium fluoride, sodium carbonate and water; (5) sealing with hot water; and (6) drying. By adopting the drawing process disclosed by the invention, not only is a relatively uniform card holder surface drawing effect achieved, but also good oxidation resistance, wearingresistance and corrosion resistance are achieved, the highest product quality standard can be met, in addition, the later product oxidation pass percent is increased by 15-20%, wastes are greatly reduced, the production efficiency is improved, the cost is reduced, and relatively good economic benefits can be made for companies.

Description

Technical field [0001] The invention relates to a cell phone card holder surface treatment process, in particular to a cell phone card holder surface drawing process. Background technique [0002] At present, the existing mobile phone cato drawing process is: drawing → degreasing → washing → drying → inspection. The effect of anodic oxidation after drawing has been unsatisfactory. The oxidized products often have problems with different drawing depths and thicknesses, resulting in poor drawing effects and poor product quality. Due to the relatively high standards for drawing the surface of the phone card holder, the limit range is narrow, and the standards are often not met, and the performance of corrosion resistance, oxidation resistance, abrasion resistance and other aspects are not ideal. [0003] In addition, according to actual measurement, the surface of the card holder will be accompanied by a certain temperature rise when drawing. Because the contact between the mold part...

AI Technical Summary

Problems solved by technology

The effect of anodizing after wire drawing has not been ideal. The oxidized products often have the problem of different wire drawing depth and thickness, which leads to poor wire drawing effect and poor product quality.

Due to the relatively high standard for drawing the surface of the mobile phone card tray, the limit range is narrow, and it often cannot meet the standard, and the performance of corrosion resistance, oxidation resistance, wear resistance and other aspects is not ideal.

[0003] In addition, according to the actual measurement, the surface of the tray will be accompanied by a certain temperature rise during wire drawing. Due to the different contact conditions between the various parts of the mold and the tray, the stress conditions are also significantly different, resulting in a large temperature gradient on the tray. The distribution of the wire is very uneven, which will also lead to different degrees of deformation during the drawing process, therefore, it will lead to uneven drawing effect