Email:cnfuruide@gmail.com Henan Friend Metal Products Co.,Ltd

Henan Friend Metal Products Co.,Ltd

Spring Steel Wire Properties

Spring in the elastic range, should return to its original position after the uninstall, hope the plastic deformation is as small as possible, so the wire should have a high elastic limit, yield strength and tensile strength. Yield ratio, the higher the closer the tensile strength of the elastic limit, and better utilization of strength, made the stronger spring.

Spring rely on elastic deformation to absorb impact energy, so the plastic spring steel wire does not have to have a high, but at least they have under a spring molded plastic, and enough toughness to withstand impact energy.

Spring usually works in the long-term under alternating stress, so to have a high fatigue limit, as well as excellent resistance to creep and relaxation.

Using spring in a specific environment, the wire will have some special requirements, such as: using spring in a corrosive medium, must have good corrosion resistance. Precision instruments used in the spring, should have long-term stability and agility, low temperature coefficient, high quality, small residual effect, modulus of elasticity to a constant. In spring under high temperature conditions, requirements can still hold enough at high temperatures the elastic limit and good creep resistance properties.

In addition, you should consider forming and heat treatment of spring steel wire. Cold drawn spring wires and oil-tempered spring steel wire in order to direct delivery condition steel wire-wound springs, spring by stress-relief treatment directly after use. Cold drawn spring steel wire tensile strength is slightly higher than that of oil-tempered wire. Large elastic steel wire, cold-drawn too large, winding Springs is difficult, specification is generally less than 8.0mm so cold-drawn spring steel wire, oil-tempered wire specifications is generally less than 13.0mm. Actually 13.0mm spring using light tension spring steel wire, cold drawn coils forming quenching and tempering after use. Diameter above 15.0mm spring steel heating winding process.


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