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| 分阶段退火; 分阶段退火 (【技】将工件加热至完全奥氏体化，随之分段进行冷却，其中各段的冷却速度根据需要而定，不一定完全相同。这种退火工艺也叫分级退火，主要用于铸钢退火。) | |||
| 分段退火 | |||
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