汽车拖拉机气阀用钢--qsf999的安全生产小屋

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汽车拖拉机气阀用钢 | 2012-3-5 17:12:00

汽车拖拉机气阀用钢

气阀处于高温、疲劳应力和燃料燃烧产物的腐蚀条件下工作。要求用气阀用钢应具有较高的室温和高温强度、持久强度和耐磨性，好的抗燃气腐蚀性和抗氧化性，尺寸稳定性，高的导热系数，好的冷热变形和切削加工性能及焊接性能。常用钢号有40Cr、4Cr9Si2、4Cr14Ni14WzMo、3Cr13Ni7Si2等。

By:qsf999 | 阅读全文 | 回复(9) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-3-4 16:11:30

http://www.esafety.cn/blog/u/3012/archives/2013/126490.html
http://www.esafety.cn/blog/u/11256/archives/2011/107170.html
http://www.esafety.cn/blog/wll/73171/archives/2011/112519.html
http://www.esafety.cn/blog/wll/66030/archives/2011/117666.html
http://bbs.tga.plu.cn/thread-4130010-1-1.html
http://www.esafety.cn/blog/u/3012/archives/2012/119752.html
http://www.esafety.cn/blog/wll/73171/archives/2013/128259.html
http://www.esafety.cn/blog/u/3012/archives/2011/109553.html
http://www.esafety.cn/blog/u/3012/archives/2011/119588.html
http://www.esafety.cn/blog/wll/66030/archives/2013/127128.html

By:lqvxb(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 | 2016-10-23 4:16:00

http://www.esafety.cn/blog/wll/66030/archives/2012/125579.html
http://www.esafety.cn/blog/wll/85686/archives/2010/105109.html
http://www.esafety.cn/blog/wll/85686/archives/2011/108783.html
http://www.anqiu123.com/store-1787/document-id-487073.html
http://www.esafety.cn/blog/u/3012/archives/2011/118475.html
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http://www.esafety.cn/blog/wll/66030/archives/2012/122864.html
http://www.anqiu123.com/store-1787/document-id-487075.html
http://www.esafety.cn/blog/wll/66030/archives/2010/104866.html
http://www.pinterest.com/c6osswei806gk0wa/

By:hwaeh(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 5:44:26

http://www.hgst.gov.cn/e/space/?userid=537446
http://www.esafety.cn/blog/wll/73171/archives/2012/124106.html
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http://www.jxedt.com/wen/qita/3170905361349214298.html
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By:gdtvz(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 | 2016-10-15 15:32:09

http://www.esafety.cn/blog/wll/34024/archives/2013/128847.html
http://www.jxedt.com/wen/qita/3170795508326465590.html
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By:uxzcf(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-30 15:52:26

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原创 | 2016-9-28 21:09:29

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原创 | 2016-9-6 21:35:09

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