如果把烧红的钢丝直接取出冷却,则退火不完全,钢丝硬度大,不易绕制弹簧。
If the red hot wire directly out of the cooling, the annealing is not complete, steel wire hardness, not easy to spring.
如果把烧红的钢丝直接取出冷却,则退火不完全,钢丝硬度大,不易绕制弹簧。
If the red hot wire directly out of the cooling, the annealing is not complete, steel wire hardness, not easy to spring.
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