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機械設(shè)計中的工藝與材料(23)——特殊淬火工藝 |
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點評
上語文課嗎
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點評
GCr15鋼制軸承鍛熱淬火:形變溫度930~970℃,形變量30%,油冷,150~180℃回火。和常規(guī)熱處理相比,提高強度近20%,接觸疲勞壽命提高23%。
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