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Wholesale tensile spring tension spring torsion spring electroplating size is complete kinds

by:Yongqiang     2020-12-20
Tension at the beginning of the spring tension: initial tension equal to that required to pull against each other in the spring and circle, tension in the early spring coiling occurs after forming. Torsion spring, because of wire material, wire diameter, spring index, electrostatic, lubricating oil, heat treatment, electroplating, make each tensile spring initial produce uneven phenomenon. The torsion spring, so the installation specification shall be of pretension to slightly apart some distance between each and circle. At this time the force needed to become the initial tension.
initial tension = P - K X l = large load The spring constant tensile length X

extension spring characteristics test
the spring size including outside diameter, inside diameter, spring wire diameter, free length and tensile length. In testing is often necessary to test the spring load and stress, this time to consider extension spring free length and the length, is the spring in the no load state and the length of the large tensile condition.

tensile spring nettley, generally speaking, there are threads of embedded, cross center TAB, retractor, more holes, shrink pores, rectangular convergent and teardrop-shaped convergent, convergent from spring body's length can be according to the specific circumstances. More common is pegged to the extension spring, the 'hook' is a source of tension, its shape is circular cross section, easy fixed to the connected components.

extension spring feature
the spring is under axial tension spring, stretching after pulling force is used to store energy, it will try to back together after open, produce to the force majeure. When not bearing, is between tension spring coil and tight, so tensile spring coiling of the close degree is decided by the initial tension. Its general with stainless steel, piano steel, high carbon steel, phosphor copper, oil tempered alloy spring steel, etc
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