汽车拖拉机用调质钢--qsf999的安全生产小屋

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汽车拖拉机用调质钢 | 2012-3-5 17:11:00

汽车拖拉机用调质钢
对调质钢主要要求是钢的淬透性。调质钢为含碳量0.30-0.60%的中碳碳结钢和合金结构钢。一般在调质状态下使用，也有再经高频感应加热表面淬火，提高表面硬度，用以制造在重载荷和冲击条件下工作的耐磨件。常用钢号有：30、35、40、45、50制造螺母、螺栓及各类轴；30Mn、40Mn、45Mn、35Mn2、45Mn2制造重要螺母、螺栓、支重轮轴和导向轮轴；30Cr、40Cr、45Cr制造转向齿轮轴、传动齿轮等。35CrMo、42CrMo制造重型汽车曲轴及连杆等。

By:qsf999 | 阅读全文 | 回复(13) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-2-20 0:18:29

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Re:在漫画中识别身边的违章 | 2016-10-23 1:07:51

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By:eimqu(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 0:07:35

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Re:在漫画中识别身边的违章 | 2016-10-20 17:47:07

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By:azpru(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 | 2016-10-20 13:43:24

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Re:在漫画中识别身边的违章 | 2016-10-17 19:33:06

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Re:在漫画中识别身边的违章 | 2016-10-17 11:43:30

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Re:在漫画中识别身边的违章 | 2016-10-14 16:19:57

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原创 | 2016-9-30 15:52:16

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原创 | 2016-9-28 21:09:20

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原创 | 2016-9-6 21:35:01

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