Testing tensile
spring load the Fs, is will spring allowed to carry the load as a test load;
Stress, tau s is allowed on the spring loaded big stress as a stress test.
But, there will be a deviation in the specific detection, so attention should be paid to the selection of measuring tools and limit deviation of consideration.
In addition, on the basis of load measurement, but also pay attention to the spring stiffness measurement, also is the point at which the deformation per unit load change.
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.
tensile spring associated standards:
GB/T_1239 [
1]
。
1 -
2009 _ _ cold roll of cylindrical helical spring technology conditions, part 1: tension spring;
GB / T2087 -
2001 cylindrical spiral tensile spring size and parameters: GB/T 2008 -
1997, etc.
News are all following the most compatible manufacturing regulations.
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