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What are the precautions of industrial aluminum profiles in the process of drawing?

Update time : 2023-03-10 18:04:12

1. Tensile must be cooled to 50 degrees below the industrial aluminum profiles before it can be moved to the stretching frame for stretching operation. The temperature is too high, that is, the stretching will burn the human body and the hair strip. More because it can not completely eliminate the internal stress of industrial aluminum profiles and present twists and turns before and after aging, twisting, poor function and other absolute waste products.

2. The control of the tensile amount is at the mercy of 1%, and it should be noted that the tensile amount is too high, the head and tail scale error will occur, the surface of the water grain twist (fish scale) marks, low elongation, high hardness brittle (low plasticity). Too low tensile amount will make the compressive strength and hardness of the profile is low, and even aging (quenching) can not improve the hardness, and the profile is easy to curve.

3. In order to control the tensile deformation and very good control of the scale change of the whole section, the appropriate special clamping pad and appropriate methods should be selected. In particular, the opening material, the arc material, the cantilever material, and the curved shape of the profile should pay more attention to the reasonable and useful use of the tensile clamping pad.

4. Pay attention to the width and thickness ratio of high, long wall, radian, large wall thickness gap, strange shape and other profiles of small feet, thin teeth, long legs, circular surface, inclined surface, opening, view and other mechanical conditions, avoid industrial aluminum profiles part or point scale deformation, twisting, spiral and other shortcomings.

5. Because of the hair strip has the effect of heat resistance, the industrial aluminum profiles with high demand for decorative appearance must be turned over more and more, so as to evenly heat dissipation, reduce the transverse bright spot shortcomings due to uneven heat dissipation crystallinity and then occur, especially the large wide surface. Thicker wall industrial aluminum profiles should be paid more attention to.

6. Do not rub, pull, stack, jam or intertwine with each other in the process of taking materials, moving and stretching. Certain intervals should be reserved between each other. The easy twists and turns, the length of the aluminum alloy profiles should be disposed of in time, and the maintenance and disposal of each other should be made when necessary.

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