Temperature affects the permanent deformation of Tinned Copper Braided Sleeve

Service temperature is another important factor affecting the permanent deformation of Tinned Copper braided sleeve. High temperatures will accelerate the aging of Special Material Braided Sleeve. The higher the operating temperature, the greater the compression permanent deformation of the Tinned Copper Braided Sleeve. When the permanent deformation is greater than 40%, the Tinned Copper Braided Sleeve loses its sealing ability and leaks occur.

The initial stress value formed in the Special Material Braided Sleeve of the Tinned Copper Braided Sleeve due to compression deformation will gradually decrease and disappear with the relaxation process of the Tinned Copper Braided Sleeve and the temperature drop. The initial compression of Tinned Copper Braided Sleeve operating at subzero temperatures may be reduced or completely eliminated due to a sharp drop in temperature. At -50~-60℃, Special Material Braided Sleeve that are not resistant to low temperature will completely lose their initial stress; even if they are Special Material Braided Sleeve that are resistant to low temperature, the initial stress at this time will not be greater than 25% of the initial stress at 20℃. This is because the initial compression of the Tinned Copper Braided Sleeve depends on the linear expansion coefficient. Therefore, when selecting the initial compression amount, it is necessary to ensure that there is still sufficient sealing capability after the stress drops due to the relaxation process and temperature drop.

For Tinned Copper Braided Sleeve that work at temperatures below zero, special attention should be paid to the recovery index and deformation index of the Special Material Braided Sleeve.
In summary, the design should try to ensure that the Tinned Copper Braided Sleeve has a suitable working temperature, or use a Tinned Copper Braided Sleeve material that is resistant to high and low temperatures to extend the service life.