Step 1: Check whether the wheel hub is deformed.
Generally, the damage of the hub is that the speed of crossing the pit is too fast, which leads to the deformation of the hub, surface damage and road tooth corrosion. The main stress point of the hub is the spoke. As long as the spokes are not bent and deformed, it will not affect the safe use. Rim deformation can be corrected.
Step 2: Sand blasting for paint removal.
In order to ensure the original quality of the hub, the aluminum alloy hub must be sandblasted and peeled off, and then the adhesion of the paint behind it will be better.
Step 3: notch fusion welding
The traditional repair of hub clearance is scraping putty. Qi Zhi adopts aluminum alloy fusion welding technology to repair the surface clearance of the wheel hub and ensure the integrity of the wheel hub.
Step 4: polishing after fusion welding.
In order to reduce the concentrated stress, the convex part of the notch after welding is polished. So as to achieve the smoothness of the subsequent spraying surface and the bonding degree between the coating and the material.
Step 5: ultrasonic cleaning.
In order to ensure the product quality, the original wheel hub cleaning process is adopted: the water temperature in the ultrasonic tank is heated to about 50 degrees, and pre-degreasing and main degreasing oil pollution treatment are carried out; Because aluminum alloy is easy to be oxidized, it is passivated after rinsing with clear water to prevent the surface of the hub from being oxidized; Finally, the deionized water is directly sprayed, cleaned and dried.
Step 6: electrostatic powder spraying.
Powder spraying is to spray powder coating on the wheel hub surface with powder spraying equipment. Under the action of static electricity, the powder will be uniformly adsorbed on the surface of the hub to form a powder coating. The powder coating is baked at high temperature, leveled and solidified to form a coating; The effect of powder spraying is better than that of coating process in strength, adhesion, corrosion resistance and aging resistance.
Introduction of wheel hub technology
In view of the current market, the wheel hub surface technology is generally divided into: baking paint, CNC wire drawing, polishing, electroplating, high gloss silver and other technologies.
Step 7: Quality inspection before painting.
Check the quality inside and outside the hub to ensure that each hub is flawless.
Step 8: Paint.
Customized color painting according to customers? , to ensure the paint inside and outside symmetry. Enter a tunnel furnace for high-temperature baking. CNC wire drawing or polishing and electroplating are carried out according to the surface technology of the owner's wheel hub.
Step 9: Spray protective paint.
After spraying high-temperature transparent paint, enter 160 baking tunnel for baking 1 hour. The fullness, hardness and toughness of the wheel hub paint film and the corrosion resistance and scratch resistance of the wheel hub surface are increased.
Step 9: salt spray test; Film thickness test
The salt spray test ensures the corrosion resistance of the hub and greatly reduces the corrosion degree of the hub. In order to prove that there is indeed a wheel hub with salt spray test, it was taken before the cover was completely covered. ; Film thickness test to ensure that the hardness of each hub reaches the industry standard and the surface is flawless.
Step 10: White dove test
Dove test In order to ensure that the wheel hub adhesion reaches the industry standard,
Finally, I will show you some cases of renovation, repair and color change.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.