Surface processing process of aluminum and aluminum alloy workpieces

Abstract

The invention discloses a surface processing process of aluminum and aluminum alloy workpieces, and has the advantages that the process operation is simple and easy, the cost is low, and the noise and dust pollution is low. The surface processing process is realized through the following steps that firstly, a plurality of stainless steel balls are poured into a grinding chamber of a vibration grinding machine for forming stainless steel bead balls, then, clean water is poured into the grinding chamber of the vibration grinding machine, in addition, stainless steel ball piles are immersed by the poured clean water, finally, aluminum and aluminum alloy workpieces to be processed are poured into the grinding chamber of the vibration grinding chamber, aluminum alloy cleaning agents are added into the grinding chamber of the vibration grinding machine for carrying out grinding vibration cleaning, and the grinding vibration cleaning time is 3 to 5 minutes; aluminum alloy brightening agents are added into the grinding chamber of the vibration grinding machine for carrying out grinding and brightening treatment, and the grinding and brightening time is 8 to 12 minutes; the aluminum and aluminum alloy workpieces processed in the third step are taken out to be subjected to cleaning treatment, the aluminum and aluminum alloy workpieces processed in the fourth step are placed into a drying box to be dried, the drying temperature is 130 to 150 DEG C, and the drying time is 5 to 8 minutes.

Description

technical field [0001] The invention relates to a surface treatment process for aluminum and aluminum alloy workpieces. Background technique [0002] Aluminum and aluminum alloys have a series of advantages such as low density, high strength, low cost, good corrosion resistance and formability, and are widely used in automobiles, construction, fire fighting equipment, bridges and other fields. However, the surface of aluminum and aluminum alloys is covered with an oxide film, which is easily corroded by strong acids and alkalis, and is prone to intergranular corrosion, with low surface hardness and no wear resistance; therefore, in order to overcome the above defects, aluminum And aluminum alloy workpiece surface treatment. [0003] At present, the surface treatment of aluminum and aluminum alloy workpieces mostly adopts anodic oxidation, electrostatic powder spraying or electroplating process. Among them, anodic oxidation treatment is not suitable for the surface of fire-f...

AI Technical Summary

Problems solved by technology

However, the surface of aluminum and aluminum alloys is covered with an oxide film, which is easily corroded by strong acids and alkalis, and is prone to intergranular corrosion, with low surface hardness and no wear resistance; therefore, in order to overcome the above defects, aluminum and aluminum alloy workpiece surface treatment

[0003] At present, the surface treatment of aluminum and aluminum alloy workpieces mostly adopts anodic oxidation, electrostatic powder spraying or electroplating process, among which anodic oxidation treatment is not suitable for the surface of fire-fighting interface and its accessories made of die-casting aluminum. The surface of the fire-fighting interface and its accessories made of aluminum is protected, and the surface of the fire-fighting interface and its accessories will be oxidized and darkened, or even blackened; although electrostatic powder spraying or electroplating process can be used for fire-fighting made of die-cast aluminum The surface of the interface and accessories is treated, but the electrostatic powder spraying process has many pre-treatment processes, the deburring noise of sand blasting is large, the dust pollution is large, and the cost is high. At the same time, problems such as missed spraying and unevenness will occur for workpieces with complex structures. ; The electroplating process has defects such as high cost and complicated process, and at the same time, the electroplating will not be in place for workpieces with complex structures