Causes and solutions of carbide traces produced by aluminum die casting

Appearance inspection: small flakes and metal or non-metallic and metal base parts are welded, and small flakes are peeled off under the action of external force. Some of the peeled casting surfaces are shiny, and some are dark gray.

The reasons are as follows:

1) There are metallic or non-metallic residues on the surface of the die-casting cavity

2) When pouring, the impurities are first brought in and attached to the surface of the cavity

The solutions and prevention methods are:

1) Before die-casting, clean the cavity pressure chamber and the pouring system to remove metal or non-metal objects

2) Clean the cast alloy

3) Choose the right paint, the coating should be even

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Post time: Aug-10-2020