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Take Good Care of Aluminum Die Casting Parts or They Can Become Black

Take Good Care of Aluminum Die Casting Parts or They Can Become Black

Take Good Care of Aluminum Die Casting Parts or They Can Become Black



With the expansion of die-casting work, aluminum die-casting parts produced by aluminum die-casting factories have become more and more popular and used in electronics, automobiles, motors, household appliances, and some communications fields. However, when aluminum die castings use, they will always turn black. What is the problem?


Aluminum is a metal element, it is easy to oxidize and turn black or mold under certain temperature and humidity conditions. It is the internal element that darkens aluminum die castings. Let's talk about the following external elements.


1. Unreasonable planning of aluminum die casting processing technology

The improper handling of aluminum die casting parts after washing creates conditions for moldy and blackening of aluminum die casting part and accelerate the formation of mildew.


2. Improper storage of aluminum die casting parts

If aluminum die castings are stored at different heights in the warehouse, the mold conditions are also different.


3. Residues brought by the process of aluminum die casting

Many aluminum die casting  plants do not perform any cleaning after the die-casting and machining process, or just rinse the parts with water, which does not ensure that the parts are clean. There are residual corrosive substances on the surface of aluminum die-casting parts, such as mold release agent, cutting fluid, saponification fluid, and other stains. These stains will accelerate the blackening of mold spots on aluminum die-casting parts.


4. Improper cleanser used for aluminum die-casting parts

The selected cleaning agent is highly corrosive and constitutes corrosion and oxidation of aluminum die castings.


Many aluminum die-casting plants do not pay attention to the above points when manufacturing aluminum die-casting parts, which results in the blackening of aluminum alloy die-casting parts.

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