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Home > News > Industry news > The causes of defects and defe.....
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The causes of defects and defects of several common aluminum plates

  • Author:Dong Xing
  • Source:aluminummanufacturerchina.com
  • Release on :2017-12-04
I believe that the aluminum plate enterprises that just started are not very familiar with the common defects of aluminum plates. Here are some common aluminum plate defects for you, so as not to cause unnecessary trouble for enterprises due to their negligence. Harbin Dong Xing Aluminum Co., Ltd is a competent and reliable Aluminum plate  manufacturer china.

1, Plate shape aspect:
(1) Cuoceng strip between the layers and irregular surface dislocation caused by uneven surface. The reasons are as follows: the blank is not smooth, the rolling and coiling tension of the rolling mill is not properly controlled, and the adjustment of the leveling roll is unsuitable.

(2) sloughing: the core is seriously deformed and the roll is not round. Cause: unsuitable tension in the process of curling; external force oppression.

(3) lateral bending: showing the bending of a plate to one side. Cause: the leveling machine is not enough pressure.

(4) wave: the general name of various unevenness of aluminum and aluminum strips due to uneven deformation. The waves generated by plates and edges are called edge waves. The waves generated in the middle are called intermediate waves. The waves between the middle and the sides, which are neither in the middle nor on the sides, are called the two rib waves, and the smaller and generally round waves are called breaking waves. 

The reasons are: uneven adjustment of roll gap, unreasonable roll shape control, uneven lubrication, uneven deformation of aluminum plate, unreasonable distribution of channel pressure and so on. Harbin Dong Xing Aluminum Co., Ltd could provide you with 2024 aluminum plate on sale.

2. Dimensions:
(1) thickness tolerance: the allowable tolerance below 1 is + 1%, 1 + 5%, and the single item is over *2 times.

(2) width tolerance: below 3.2MM + 0.1MM, 3.2MM above + 0.2MM;

(3) length tolerance: +5-3MM. The cause of thickness tolerance, the problem of thickness gauge, the reason of width tolerance, the improper adjustment of disc shear, the reason of length tolerance, and the adjustment of shearing machine.

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