Maintenances of aluminum die casting parts

With the rapid development of society, aluminum die casting is widely used in industrial and mechanical fields. Although the size is small and the weight is light die casting part plays a very important role just because of the light weight. Timely maintenance of die casting parts can extend their service life. If the maintenance of the part is not timely, not only the die casting part cannot be used, but the device carrying the part will also be affected. The disassembly process wastes our time and affects the working efficiency. So how should it be maintained? 

There are many ways of maintaining die casting parts. If there are streaks in the aluminum die casting parts we need to polish the surface; For the defect of scratch we can punch the surface and make smooth indentation to solve it. Secondly, before we maintain the aluminum die-casting parts, our first priority is to purchase the surface capability of the manufacturer's processing devices. Generally speaking, in order to ensure the appearance quality, the manufacturer chooses the paint spraying process. For those with high anticorrosion requirements, the powder spraying process will be adopted. Electrophoresis technology will test its durability. When we choose, we must see what kind of technical equipment the manufacturer uses in order to choose the suitable aluminum die casting parts. The die cast is preferably not exposed to high temperatures because aluminum has a lower melting point than other metals.

Aluminum is easily oxidized in the air because its chemical properties are more active. In order to make the aluminum die casting surfaces more attractive and durable, there are two treating methods. 

A thin layer of high silicon surface remains on the surface of the cast aluminum alloy. The ordinary chemical cleaning solution has no effect on it. The acid solution containing fluoride should be used, such as the mixed solution of sulfuric acid and chromic acid containing ammonium fluoride. When the polishing paste on the casting surface is not easy to be cleaned, it can be removed by using a clean soft cloth wheel with some fine talc powder. For the cast aluminum alloy with higher Al-Cu content, no matter electro plating or anodic oxidation treatment are both very difficult, before the coating process it is necessary to adopt "shot peening ─ ─ activation water ─ chemical oxidation (HNO3 + HF) dry wash " .

As a professional aluminum die casting and aluminum alloy die casting manufacturer in China, Sieg-Huao has rich experience in maintenances of aluminum die casting parts. If you have any die casting demands, we are your best choice!