What is obtained with the forging waste heat normalizing and controlled cooling technique is the coarse stable structure in a 20CrMnTi gear, but its cutability is good.
余热正火和常规
正火处理后，再经同样工艺进行
碳、淬火和回火处理，试验证明：
和
部
、晶粒度及机械性能均相同。
What is obtained with the forging waste heat normalizing and controlled cooling technique is the coarse stable structure in a 20CrMnTi gear, but its cutability is good.
余热正火和常规正火处理后，再经同样工艺进行碳、淬火和回火处理，试验证明：和部、晶粒度及机械性能均相同。
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