How to Produce the Industrial Aluminum Profile Surface Without Any Extrusion Mark?
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How to Produce the Industrial Aluminum Profile Surface Without Any Extrusion Mark?

Views: 24     Author: Site Editor     Publish Time: 2022-03-11      Origin: Site


How to Produce the Industrial Aluminum Profile Surface Without Any Extrusion Mark?



We can usually see a lot of scratches on the surface of aluminum profiles, scratches are common surface defects in the process of industrial aluminum extrusion. If the scratch is on the inside, it may be a foreign body stuck to the mold, if the scratch is on the outside, it may be produced in the loading, handling.image1

How to produce the industrial aluminum profile surface without any extrusion mark?

Firstly let’s think about the die, the extrusion die of industrial aluminum profile must have qualified finish. Die and profile contact surface must be smooth and flat. Uneven die contact surface will result in many lines on the extruded aluminum profile surface. In addition, the heating process in the extrusion process and the length of the working strip will affect the generation of lines. For example, when the polishing effect is not good or the working strip is long, the surface of the product extruded by the mold will produce extrusion marks. And the mold heating time is too long, too high temperature will make through the mold extrusion profile surface extrusion marks.image2

From the aspect of extrusion process, the higher the extrusion temperature, the increase of the viscosity of aluminum alloy inside the extrusion tube, these will be extruded out of the aluminum alloy profile surface with extrusion marks. And the extrusion speed also leads to the appearance of extrusion marks, the extrusion speed can not be too fast, otherwise the extrusion marks will be more. In the extrusion process of aluminum, if the extrusion mold is not very good or the mold extrudes aluminum too much, the surface of aluminum will produce extrusion marks. It is possible to touch the uneven surface of aluminum by hand.
image3 

In order to make the surface of aluminum smooth and smooth, the extrusion marks can not be touched. Sand blasting technology is an advanced method for surface treatment of aluminum profile in recent years. In fact, several well-known domestic aluminum factory aluminum extrusion exports because of good mold equipment, advanced technology no extrusion mark also do not need sandblasting. 



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