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nemo_fisher

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[求助] 镍铁合金的电弧熔炼问题

有没有人用真空电弧熔炼过铁镍合金啊?类似因瓦合金或者可伐合金的,冒口补缩要注意什么?为什么我化的锭子里有大量离散分布的孔洞(看着像气孔),是金属收缩不好还是原料里含的气体元素太多呢?工艺上有什么要注意的?有没有虫友有经验的告诉一下,非常感谢啊
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