What Are the Precautions for Aluminum Profiles During the Stretching Process?

What are the precautions for aluminum profiles during the stretching process? Aluminum Rack System Factory is here to explain to you:

1. Stretching must be carried out until the aluminum alloy profile is cooled to below 50 degrees and can be moved to the stretching frame for stretching. When the temperature is too high, stretching will not only burn the human body, but also burn the tops, and it will not completely eliminate the internal stress of the aluminum alloy profile, and it will be twisted, twisted, and malfunctioned before and after the aging.

2. The manipulation of the amount of stretching is at 1%, and it should be noted that the head-to-tail size error occurs when the amount of stretching is too high. Appearance water-like twist (fish scale) marks, low elongation, high hardness and brittle (low plasticity). Too low tensile strength will make the compressive strength and hardness of the profile low, and even the aging (quenching) can not improve the hardness. The profile is easy to bend and bend (commonly known as the big knife bend).

3. In order to control the amount of tensile deformation and very good control of the scale change of the whole profile, it is necessary to select a suitable special cushion and a suitable method. In particular, the open material, arc material, cantilever material, and the curved shape of the Aluminium Profile should pay more attention to the reasonable and useful use of the stretched cushion.

Aluminium Profile

4. Pay attention to the forces of small feet, thin teeth, long legs, circular surfaces, inclined surfaces, openings, viewpoints, etc., which are wide and thick, high in hanging wall, large in curvature, large in thickness, and odd in shape. situation. Avoid defects such as deformation or twisting of the profile part or point scale.

5. Because the tops have the effect of resisting heat, the aluminum profiles with high decorative appearance must be turned upside down to facilitate uniform heat dissipation, and reduce the disadvantages of lateral bright spots caused by uneven heat dissipation and crystallinity. Especially for large wide-faced, thicker aluminum profiles should pay attention to it.

6. Do not rub, pull, stack, congest or entangle each other during the process of taking and moving and stretching, and reserve a certain interval between each other. For the Aluminium Profile System, which is easy to tortuous and short in output, it should be disposed of in time, and if necessary, maintain and dispose of each other.