作者：
发布时间：
2018
/
10
/
19
点击次数：
42
When the spring is made from materials that do not need to be hardened or tempered after forming, the process is spiral compression spring: rolling, de-stressed annealing, grinding of two ends, (shot blasting), (rectification), (de-stressed annealing), standing or strong pressure treatment, inspection, surface anti-corrosion treatment, packaging.Coil stretching spring: rolling, de-stress annealing, hook making, (cutting the tail), de-stress annealing, standing treatment, inspection, surface anti-corrosion treatment, packaging.Spiral torsion spring: rolling, de-stress annealing, torsion arm making, cutting tail, de-stress annealing, standing treatment, inspection, surface anti-corrosion treatment, packaging.The manufacturing process of spiral drawing and torsion spring described above is to...