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为解决滚焊机电极的来源问题,我们试制了铬镁铝青铜电极,其铸造后的化学成分为Cr0.5～1.0％;Al0.1～0.25％;Mg0.1～0.25％,其余为Cu,现将其熔炼工艺介绍如下: 一、中间合金的配制铬、镁、铝、青铜的熔点相差很大,给熔炼工艺带来了一定困难。高熔点的合金直接加入合金液中,则必须提高合金液的温度。这样不仅增加合金的损耗、氧化和吸气,同时还会降低合金质量,因此必须以中间合金的形式
In order to solve the problem of the source of electrode rolling machine, we made a chromium-magnesium-aluminum bronze electrode. The chemical composition of the electrode is Cr0.5 ~ 1.0%, Al0.1 ~ 0.25%, Mg0.1 ~ 0.25%, and the rest is Cu Now the smelting process is as follows: First, the preparation of the master alloy Chromium, magnesium, aluminum, bronze melting point vary widely, to the melting process has brought some difficulties. High melting point alloy directly added to the alloy liquid, you must increase the temperature of the alloy liquid. This not only increases the loss of alloy, oxidation and inspiratory, but also reduce the quality of the alloy, it must be in the form of intermediate alloy