How to solve the bubble during the extrusion of aluminum profiles?

The aluminum profile production process generally mainly includes casting, extrusion and oxidation treatment. In the extrusion process, the surface of the profile is required to have no bubbles, but if the individual elements are not controlled in the production process, it is inevitable that after extrusion. There are bubbles on the surface of the profile. If these bubbles are not treated, the quality of the oxidized aluminum profile will not be qualified. How can the bubble be solved during the extrusion of the aluminum profile? Xiao Bian suggests that you should first find out the possible reasons that can cause the profile to cause bubbles during the extrusion process.

The cause of the bubbles on the surface of the aluminum profile is generally the gas inside the cast rod or the air entrained during the extrusion process, which expands during extrusion and subsequent heat treatment, resulting in defects formed by the surface of the profile.

To solve the bubble method on the surface of the aluminum profile after extrusion:

1. The gas content inside the cast rod is minimized.

2, the surface of the cast rod is required to be clean, without oil

3. Clean the extrusion tube

4, the bar temperature can not be too high

5, increase the thickness of the residual

6. Control the amount of lubricant applied to avoid excessive lubrication.

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Label: How to solve the bubble in the extrusion process of aluminum profiles?

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