Spring material production process:
1. Carbon spring steel wire production process:
Steel wire rods-->Pickling and phosphating --> Drawing --> Lead quenching heat treatment --> Pickling --> Drawing --> Oil packaging. Generally , the heating temperature of the steel wire is 900~950 Centigrade, while the lead temperature is 470~500 Centigrade.
2. Alloy spring steel wire process: Paying off --> Pinch --> Straightening --> Induction heating --> Soaking
--> Quenching --> Induction heating --> Soaking --> Water-cooling --> Take-up. Induction heating production line is the most ideal equipment for producing oil tempered spring steel wire.