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Causes and Solutions of Short Strips, Scribe Defects in Aluminum Extrusion Profiles

November 12, 2024

【China Aluminum Industry Network】 A few shortcomings and shortcomings in aluminum extrusions are as follows:

Characteristic reflect:

It is white with a certain depth. It is longitudinally distributed on the surface of aluminum profiles, intermittently or sporadically. The tail end of aluminum alloy profiles is more serious than the front end and is grayish black after oxidation.

cause:

(A): aluminum extrusion tube, aluminum extrusion pad with the size of the poor, aluminum particles into the metal (2): aluminum extrusion mold used too long, the hardness is not enough.

(C): The extrusion speed and extrusion temperature are too high and the rod quality is poor.

In a parallel line, short white lines intermittently appear, which is caused by the die holes. Irregular short white lines are caused by the indentation of the metal particles, which is a mismatch of the size of the pressing tool.

Elimination method:

The size of the extrusion tube is not more than 0.1 mm between the press pads, and the working part and the non-working part of the press tube (the chamfer opening of the feed port of the press tube) do not exceed 1.0 mm. Aluminum extrusion die work with smooth toothless mouth, hardness guarantee. The quality of aluminum rods is qualified and the aluminum extrusion process is correct.

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Contact Us

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Mr. lilei

E-mail:

1234@qqq.com

Phone/WhatsApp:

+86 13323231231

Popular Products
Exhibition News
new news test language

August 28, 2024

112233xinwen fabu

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Industry News
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February 19, 2024

test test

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