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Precautions for stretching battery case of TWS i7 Bluetooth headset

 Back to list Source: Heju hardware Browse: - Release date: October 8, 2020【 large in Small
The precautions for stretching the battery case of TWS i7 Bluetooth headset are as follows: the aluminum material can be moved to the stretching frame after cooling to below 50 ℃. If the temperature is too high, the stretching will not only damage the human body and the wool top, but also cause the aluminum shell material of the power battery to completely eliminate the internal stress, which will lead to twists and turns, twisting, poor function and other absolute waste products before and after aging.
 
The stretching amount of the battery case of the TWS i7 Bluetooth headset is controlled at 1%, and it should be noted that if the stretching amount is too high, the head, middle and tail scale error will occur, and the appearance of water ripple like twist (fish scale) marks, low elongation, high hardness and brittle (low plasticity). Too low tensile strength and hardness of the aluminum shell of the earphone battery will be low, and even aging (quenching) can not improve the hardness, and the material is easy to curve (commonly known as big knife bend).
 
In order to control the tensile deformation and the size change of the aluminum shell of the earphone battery, appropriate special clamp pad and appropriate method should be selected. In particular, the opening material, arc material, cantilever material, as well as the aluminum material with zigzag shape should pay more attention to the reasonable and useful use of tensile clamp pad.
 
Pay attention to the stress conditions of small feet, thin teeth, long legs, circular arc surface, inclined surface, opening and viewpoint of materials with high aspect ratio, long suspension wall, large radian, great wall thickness difference and strange shape, so as to avoid the defects of material parts or point scale deformation, twisting and spiral.
 
Due to the heat blocking effect of wool top, the aluminum shell of battery with high demand for decoration appearance must be overturned up and down, so as to facilitate uniform heat dissipation and reduce the transverse bright spot defect caused by uneven heat dissipation and different crystallinity, especially for the extrusion of aluminum materials with large width and thick wall.
 
In the process of reclaiming, moving and stretching, it is not allowed to touch, pull, stack, jam and entangle with each other, and a certain space shall be reserved between them. The aluminum alloy materials with easy twists and turns and the length of discharge should be disposed in time, and the maintenance and disposal between them should be done when necessary.
 
What should be paid attention to in the stretching process of battery case of TWS i7 Bluetooth headset? Just share it here.
 Headphone battery case stretch
 

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