Disc
spring how to carry out heat treatment after forming?
The following spring factory give us the disc spring forming after heat treatment, the main points of the together and see it!
(
1)
Disc spring after forming, it is important to carry out the tempering treatment, heat treatment, tempering, heat treatment frequency of not more than 2 times.
The strength of the disc spring, after tempering heat treatment must be within 42 ~ 52 HRC category.
(
2)
After tempering treatment of disc spring, the single layer of the deep, according to its thickness less than 1.
3 mm of disc spring, shall not exceed 5% of its thick;
For not less than 1.
25 mm of disc spring, shall not exceed 3% of its thickness, the minimum allowable 0.
06mm。
(
3)
Disc spring should be resolved all carry out expired brake.
Solution: a flat, delay time not less than 12 h, or short time pressing, pressing frequency of not less than five times, pressing force not less than 2 times of F (
f = 0。
75h0)
。
Disc spring after expired brake solve random height specifications should be smooth.
Under the standard of the experiment, the random height should be within the required limit error category.
(
4)
In view of the disc spring bear the variable load, within the sphere is highly recommended to carry out the surface strengthening solution, such as shot peening treatment.
(
5)
On the basis of must saucer reed surface should be resolved in corrosion resistance (
Such as phosphating, air oxidation, hot dip galvanized, etc. )
。
After plating process to solve the disc spring is important to carry out to hydrogen.
To bear the variable load effect of disc spring should prevent choose plating process.
(
6)
Disc spring surface are not allowed to have burrs, crack, scabbing and other shortcomings.
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