Application:
tension
springs and spiral extension spring, generally for pitch, such as cross section is round more, they can be used in many occasions, such as production assembly, experiment, research and development, maintenance, etc.
Tension spring occupies an important position in the global market, widely used in national defense, Marine, computer, electronic, automotive, mold, medical, biological, chemical, aerospace, railway, nuclear power, wind power, thermal power, engineering machinery, mining machinery, construction machinery, elevator, etc.
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.
Formula:
spring constant: to k said, when the spring is stretched, each additional load (1 mm distance
kgf /毫米)
spring constant formula (
Unit: KGF/mm)
:k = (
G*d4)
/(
8*Dm3*Nc)
G: module of rigidity of wire;
D: wire diameter;
Dm: - pitch diameter = diameter
Wire diameter;
Nc: laps = total number of laps - effectively
2.
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.
Dongguan Yongqiang spring hardware Co.,Ltd.'s products comply fully with all compatible producing regulations.
Dongguan Yongqiang spring hardware Co.,Ltd. will be known for our leadership edge, through our passion for high standards, our respect for diversity and our commitment to create exceptional opportunities for professional growth so that associates can fulfill their highest potential.
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