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What are the processing technology of the compression spring
by：Yongqiang
2020-09-11
1)
After recrystallization annealing compression spring coiling molding, recrystallization annealing treatment, must be conducted to make spring geometry size stability, reduce the deformation of quenching.
Recrystallization annealing temperature is 550 ~ 650 ℃, the heat preservation of air cooling after 1 ~.
A small amount can be done in salt bath furnace, large quantities of used continuous type resistance furnace control atmosphere.
2)
When heated, quenching in the salt bath furnace quenching spring wire should be evenly strapped up, or the spring set of heating on the mandrel.
When heated to ensure that the five spring surface oxidation and decarburization.
Salt bath should be carefully DNA.
Can also be used in controlled atmosphere box-type furnace heating, the heating temperature is 850 ℃ + 10 ℃, insulation 10 ~ 15 min, from quenching oil cooling.
3)
Tempering after quenching and tempering can be carried out twice.
To rectify tempering, correct the tempering temperature should be lower than general * tempering temperature 20 ℃ or so, insulation 10 ~ 15 min, from air cooling.
Then * tempering, and after the spring size correction, in the spring * eventually tempering tempering stereotypes fixture.
Tempering stereotypes fixture should guarantee the spring pitch and free length conform to requirements.
Tempering temperature is 420 ℃ + 10 ℃, 30 ~ 35 min, heat preservation from water.
4)
Blasting process in order to improve the fatigue strength spring need to shot blasting process.
The projectile diameter Φ ~.
Using compressed air jet, compressed air pressure for ~;
Centrifuge is shot, linear velocity of the projectile is 70 m/s.
The treatment of the compression spring blasting can increase more than double service life.
The point for Dongguan Yongqiang spring hardware Co.,Ltd. is that managerial processes are as important as other inputs in production and can create significant competitive advantage.
Reach us at Yongqiang Spring Hardware. We'll always try to give you the BEST deal on . If we can't, we'll at least give you some hel pful advice. Please use our experience!
With the market analysts, exports from Dongguan Yongqiang spring hardware Co.,Ltd. facilities in China will surpass the forecast.
Diversifying is an excellent growth strategy, as it allows Yongqiang to have multiple streams of income that can often fill seasonal voids and, of course, increase sales and profit margins.
As the full potential of leaf spring hardware lies in , the demand for is increasing globally, and is being adopted across the global market.
The point for Dongguan Yongqiang spring hardware Co.,Ltd. is that managerial processes are as important as other inputs in production and can create significant competitive advantage.
Reach us at Yongqiang Spring Hardware. We'll always try to give you the BEST deal on . If we can't, we'll at least give you some hel pful advice. Please use our experience!
With the market analysts, exports from Dongguan Yongqiang spring hardware Co.,Ltd. facilities in China will surpass the forecast.
Diversifying is an excellent growth strategy, as it allows Yongqiang to have multiple streams of income that can often fill seasonal voids and, of course, increase sales and profit margins.
As the full potential of leaf spring hardware lies in , the demand for is increasing globally, and is being adopted across the global market.
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