Matters Needing Attention in the Stretching Process of Led Aluminum Profile Shell

Matters needing attention in the stretching process of led aluminum profile shell
With the rapid development of electronic products, the shell is used as the protective packaging of electronic products, and the types of materials are also very wide. The aluminum profile shell is the addition of pre-plating and electroplating process steps on the basis of the conventional titanium plating process. The aluminum profile process It is to put the activated plated parts in the aqueous solution of salt and hydrochloric acid for chemical treatment; it can be processed into various series of bright aluminum products such as gold, color, black and so on.
1. The stretching must be done after the aluminum alloy profile is cooled to below 50 degrees before it can be moved to the stretching frame for stretching. If the temperature is too high, stretching will not only burn the human body, but also burn the tops, but also because it cannot completely eliminate aluminum Due to the internal stress of the alloy profile, it is absolutely waste products such as twisting, twisting, and poor function before and after aging.
2. The control of the stretching amount is about 1%, and it should be noted that if the stretching amount is too high, the head, middle and tail size errors will occur, the appearance of water-like twist (fish scales) marks, low elongation, high hardness and brittleness (low plasticity). Too low tensile strength will make the compressive strength and hardness of the profile low, and even aging (quenching) cannot improve the hardness, and the profile is easy to bend in an arc.
3. In order to control the amount of tensile deformation and control the size change of the entire profile very well, it is necessary to select appropriate special clamps and appropriate methods. In particular, the opening material, arc material, cantilever material, and zigzag-shaped profiles should pay more attention to the reasonable and effective use of stretch clamp pads.
4. Pay attention to the force of small feet, thin teeth, long legs, arc surfaces, inclined surfaces, openings, viewpoints, etc. In order to avoid the occurrence of defects such as partial or point-shaped dimensional deformation, twisting, and spiraling of the profile.
5. Because the top has the effect of resisting heat, the aluminum profiles with high decorative appearance must be turned upside down and backside to facilitate uniform heat dissipation and reduce the horizontal bright spots caused by uneven heat dissipation and different crystallinity, especially the large width. On the surface, more attention should be paid to aluminum profiles with thick walls.
6. During the process of reclaiming, moving and stretching, do not rub, pull, stack, jam or entangle each other, and a certain interval should be reserved between each other. The aluminum alloy profiles that are easy to bend and have a short discharge length should be disposed of in time, and maintenance should be done when necessary.