What are the attention problems of spring produced by spring manufacturers in Suzhou?

What are the attention problems of spring produced by spring manufacturers in Suzhou?

The spring produced by the spring manufacturer is limited by the product structure, and the multi-strand spring usually has the characteristics of high strength and good function. Spring manufacturers tell you the information to ensure the strength and endurance of the spring function.

The spring produced by the spring manufacturer should pay attention to:

1. The support right can be selected in two ways according to the product requirements: hot and cold. The method of using heat does not allow the spring to heat to spark or turn white, and the temperature of silicon manganese steel shall not exceed 850. The support ring and the effective ring effectively touch, and the distance cannot exceed 10% of the nominal distance between the circles.

2, the special function of the multi-strand spring can be determined by the adjustment channel, and the cable interval can be adjusted as necessary when it is wrapped. The skein can be 3 to 14 times the diameter of the wire, but it is generally advocated to take 8 to 13 times. In addition, the spring force is closely related to the free height, parallel coil, outside diameter and wire function, and can be changed by adjusting one or more of them.

3. Springs without support source and springs with wire diameter too thin can not be welded to the spring head, but the end cable can not be significantly loosened and burrs removed. The length of the welded part of the multi-strand spring required for welding the head cannot exceed 3 times. The heating length should be less than one circle, the welding should be smooth, and the welding part should be subjected to local low temperature annealing during gas welding.

4, spring manufacturers: spring surface treatment generally only requires phosphating treatment, but also can carry out other treatments. When electroplating is zinc and cadmium, it is necessary to remove hydrogen after electroplating and then test 3% after hydrogen removal (less than 3 times), and then experiment treatment, which can not be interrupted in the re-test. The spring needs to remove the surface dirt, salt marks and oxide, the method can clean sand or gasoline, but can not use pickling.

5, spring manufacturers: spring tightening time is 24 hours, generally keep the spring for 6 hours or continuous tightening 3 to 5 times, 3 to 5 seconds each time. When tight, the distance between the spring and the mandrel is suitable for 10% of the mandrel diameter, the distance is too small to operate, and the distance is too large, the spring is easy to bend. When tight, if one of the springs breaks, the rest must be reprocessed.

6.HO/D2 value of the larger multi-strand spring, heat treatment should pay attention to the deformation problem, whether to wear the mandrel, the placement method should pay attention to, to select the appropriate heat treatment equipment. Spring manufacturers advocate that under the conditions of rehabilitation, repeated tempering and hot pressing can be carried out to achieve the purpose.

Most of the spring materials produced by the spring manufacturer have different degrees of elasticity, and can recover the prototype with great strength after bending.