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熱處理問(wèn)題求助 |
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點(diǎn)評(píng)
大俠,,去了解一下把,淬火是整體有硬度,,不是說(shuō)表面有硬度,,你說(shuō)的那種表面強(qiáng)度的是氮化或者QPQ,這個(gè)是增加表面硬度的,,耐摩擦
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點(diǎn)評(píng)
了解,,謝謝
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