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
Spring constant tensile length X
abstract: closely around the circle, so that it can force and stretched, each side around a loop (
循环)
。
the following necessary for a stretch of the spring data:
1, free length, total length, long full circle, since the length of hook circles;
2, control the diameter, outer diameter, inner diameter, the inside diameter of casing;
3, steel wire size wire diameter;
4, materials (
Species, grade)
；
5, laps: the total number of turns and right-handed or left-handed;
6, the end of the form;
7, within the hook load;
8, load rate, deflection, every inch of pounds;
9, tensile length.
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.
in the spring, in the process of heat treatment and quenching cooling rate should be controlled tensile spring products, in order to obtain high and even hardness and enough hardening layer depth, at the same time reduce the deformation and prevent cracking.
What is the action of tensile spring quenching:
1, steel hardenability: hardenability is also called the hardenability, is refers to under prescribed conditions, the hardening depth and hardness of the steel sample distribution characterized by material performance.
These are the characteristics of steel itself;
2, to stretch the spring products, steel grade requirements for the carbon content is 0.
50% -
0.
75%, manganese element is zero.
50%.
Carbon and manganese are affect the hardenability of elements.
Due to the domestic steel hardenability band wider, quenching oil cooling rate should be according to the condition of low hardenability choice;
3, fast quenching oil is mainly used for thickness or diameter smaller alloy constructional steel and carbon steel spring.
Spring enterprise all hope each heat treatment furnace can deal with more specifications of the spring.
Dongguan Yongqiang spring hardware Co.,Ltd. specializes in undertaking corporate offers to cater the needs of different companies.
If you are thinking of having a , then you must be first clear about the purpose, which is driving you to buy this device. Dongguan Yongqiang spring hardware Co.,Ltd. offer quality for your needs with complete assurance of ability to serve your purpose.
Dongguan Yongqiang spring hardware Co.,Ltd. provides the ideal conditions for business creation – access to cash, human capital and affordable office space, for instance – can help new ventures not only take off but also thrive.
News are raising the stakes of social marketing, but they also ease the sales process by providing ways for leaf spring hardware to effectively interact with customers.
Dongguan Yongqiang spring hardware Co.,Ltd. provides innovative technology and prompts our customers to know the development of our producing News.
