Hub coating process

Abstract

The invention discloses a hub coating process. The hub coating process comprises the steps of S1, pretreatment; S2, spraying bottom powder; S3, preheating a blister film, and leveling and curing the bottom powder; S4, vacuum plastic uptake; S5, baking, and leveling and curing the base powder; S6, shaping and cooling; and S7, trimming and the like. According to the coating process, only one-time bottom powder spraying and one-time baking are needed, treatment is conducted in a blister mode, and huge energy consumption and baking time cost in a traditional process are reduced; environmental pollution caused by paint spraying is reduced, and the cost of air purification treatment is reduced; and after the process is adopted for coating, the coating surface is uniform in thickness and controllable in thickness, the product surface consistency is good, other defects such as sagging and insufficient spraying do not exist, the product coating is obviously improved, and the performance is excellent.

Description

technical field [0001] The invention relates to the technical field of wheel processing and production, in particular to a wheel hub coating process. Background technique [0002] The wheel hub is an essential part of the car, and its performance is directly related to the smooth running and safety performance of the vehicle. In order to reduce the oxidation of aluminum alloy in the air and the wear and tear of the wheel hub, there is a higher requirement for the coating performance after painting. At present, the wheel hub industry mostly adopts the process of spraying paint. Painting is the last process in the production of automobile wheels, and its purpose is to improve the corrosion resistance and aesthetic feeling of automobile wheels. At present, in the prior art, the wheel coating mostly adopts the method of spraying paint, which needs to go through the process of three coatings and three baking, that is, spraying the base powder → baking → spraying the color paint ...

AI Technical Summary

Problems solved by technology

At present, in the prior art, the wheel coating mostly adopts the method of spraying paint, which needs to go through the process of three coatings and three baking, that is, spraying the base powder → baking → spraying the color paint → baking → spraying the varnish → baking, and its energy consumption accounts for a large part of the production. 20% of the cost, the impact of painting on the environment is also very serious, and the cost for air and water purification remains high

Due to the increasingly complex shape of the wheel and the promotion of the surface finishing process, the burrs cannot be removed after the finishing process. The traditional spray paint has defects such as incomplete coverage of sharp corners and uneven thickness, which leads to corrosion of the wheel. The coating method of the old process is often more difficult. Complicated, cumbersome steps, consuming a lot of manpower and material resources

Images