双色球红蓝走势图

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双色球红蓝走势图 13972952686

如何避免石墨模具呈现淬火裂纹

发布时间:2019-05-22 14:27:40 浏览:247次

什么是淬火裂纹?淬火时,钢件内由于体积效应所产生的内应力,如因塑性缺乏内应力无法得到松弛时,便会产生不同类型的淬火裂纹。淬火裂纹是在生产石墨模具的过程中比拟常见的一个问题,那么如何预防石墨模具呈现淬火裂纹呢?辉县市金镶玉石墨模具制品有限公司小编给大家说说。

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如何避免石墨模具呈现淬火裂纹

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