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Reasons for the blackening of Precision Aluminum Die Casting Parts

Reasons for the blackening of Precision Aluminum Die Casting Parts

Pulished on Sep. 23, 2019

Nowadays, the aluminum die-casting industry is slowly developing, and aluminum alloy die-casting is widely used. Aluminum alloy casing is usually metal material casting, and metal material aluminum alloy profiles have excellent flowability and ductility. However, when it comes to the production of Precision Aluminum Die Casting Parts, it will turn black. What is the reason? CNC Lathe Parts Supplier gives you an analysis of the reasons why the castings turn black.

Aluminum alloy die casting process

1. The process technology is not scientific.

Precision Aluminum Die Casting Parts are negligent after finishing or pressing, and the specifications for the black mold of the castings are accelerated, and the moldy transformation is accelerated.

2. Logistics warehousing is not timely.

The aluminum alloy die-casting parts are stored in different height-to-width ratios in the warehouse, and the mildew is different.

3. Internal elements of aluminum alloy profiles.

Many die-casting manufacturers do not do all the finishing work after the aluminum die-casting and machining process, or the simple tap water cleaning, can not ensure complete neatness. The surface of Custom Die Casting Parts is left with corrosion chemicals such as release agents, cutting oils, saponification liquids and other grime. This kind of dust scale accelerates the rate of black mold growth of aluminum alloy die-casting parts.

Custom Die Casting Parts

Custom Die Casting Parts

4. Environmental factors of aluminum alloy profiles.

Aluminum is an open metal material that is easily oxidized to black or mildew under the necessary temperature and ambient humidity specifications. It is determined by the characteristics of aluminum itself.

5. It is not acceptable to use detergent.

The cleaning agent used has strong corrosion, which causes oxidation of the die-cast aluminum etched air.

There were a lot of die-casting factories that made Custom Die Casting Parts, and the aluminum die-casting parts turned black because many key points were neglected. Only a good storage specification can be created, and the problem of finishing and drying in time can be very well handled.


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