汽车拖拉机用渗碳钢--qsf999的安全生产小屋

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汽车拖拉机用渗碳钢 | 2012-3-2 10:47:00

汽车拖拉机用渗碳钢

钢的含碳量低，一般在0.10～0.23%最适合，最高应≦0.30%应选择本质细晶粒钢，经渗碳后可直接淬火、低温回火。可得细回火马氏体组织。一般要求渗碳层中碳的浓度梯度和缓，碳含量最好在0.8～1.0%范围内。常用渗碳钢钢号和用途如20、30、20Mn,制造凸轮轴、杠杆轴和传动被动齿轮；15Cr、20Cr、20CrMnTi，制造万向节+字轴和各种齿轮；30CrMnTi、20CrMnMo、20MnVB，制造大截面齿轮。

By:qsf999 | 阅读全文 | 回复(12) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-3-4 14:34:11

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By:xvnps(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2017-2-20 16:04:09

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Re:在漫画中识别身边的违章 | 2017-2-18 22:23:31

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By:wvkmq(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2017-2-18 14:06:30

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By:rhkmp(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-21 0:00:33

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By:bwnrv(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-19 14:38:12

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By:zynru(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

Re:在漫画中识别身边的违章 | 2016-10-16 23:24:14

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原创 | 2016-9-30 15:52:27

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原创 | 2016-9-28 21:09:31

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原创 | 2016-9-6 21:35:10

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