7015| 12
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最低多少含碳量可以不用滲碳直接淬火啊? |
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點(diǎn)評(píng)
硬度和熱處理有關(guān),但是硬度的要求,是零件的使用性能決定的,是設(shè)計(jì)者定的。
硬度要求和回火有關(guān)吧?
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