11412| 19
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求助工藝,,老板接的單,,一看有點懵 |
評分
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點評
淬火后回火其實應該算是一道(正常淬火包括回火處理),,但是要求的硬度偏高,40Cr一般52-60HRC
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點評
明白人
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點評
應該干不出這么窄的硬度范圍(除非運氣好)
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