铸件

如何解决铸铁中铁硬度过高的问题?

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生产出来的铸件的硬度总是过高,令人头痛,专家说要增碳,但是在铁中含碳量越高,硬度应该越大才对的,一直不知道该怎么处理,恳请铸造高手指点一二。如果增碳,该怎样增,减碳的话,又该怎样减。不胜感激
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C:3.35~3.5 原硅1.3-1.5 一次孕育硅按0.8%加入,这个是针对薄壁件的,5~15mm 118055620QQ
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增碳?增加碳当量吧?注意可能降低牌号!你的成分?孕育技术?孕育量?
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