Industry News

Selection of constant force spring for cold shrink cable accessories

2023-01-31
With more and more applications of cold shrinkable cable accessories, constant force spring has become a necessary component of cable accessories manufacturers at home and abroad. In practical application, how to find the appropriate constant force spring, how to determine the constant force spring's sustained elasticity, magnetism, corrosion resistance and so on become the cable accessories manufacturers and customers need to consider the first problem.

Whether it is an imported brand or a domestic brand cold shrinkable cable accessories, the constant force spring has become a standard configuration, but the quality is uneven, due to the material, selection or performance and other factors, cause failures often occur.


constant force spring


The corrosion resistance of constant force spring is related to materials and processing technology. The corrosion resistance of stainless steel mainly comes from chromium. Only when the chromium content is more than 12%, the corrosion resistance of steel will be greatly improved.

Due to the differences in processing technology, cable accessories with constant force spring micro magnetic and non-magnetic two products, through the adsorption of strong magnets can be convenient to confirm whether there is magnetic.

The application environment of the constant force spring is the same as that of the cable accessories. The outside is generally wrapped with some strips to prevent the axial displacement along the cable. In the process of use, it is wrapped in the whole joint or terminal inside and will not be in direct contact with the moisture, but it is easy to contact the moisture when the protective layer is damaged, plus the heat during the operation of the cable and the escape of various insulation and sheath materials. The formation of a very harsh small environment, so the constant force spring cable accessories corrosion resistance requirements are very high.

constant force spring

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