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本文介绍的БрАМц9—2铝青铜的熔炼实际施工,得到很好的质量,是值得介绍的,但在熔炼操作中,由于过早的加入了铝铜中间合金,引起生成多量的氧化铝,最后不得不使用熔剂精炼及氯化锌脱气,以致造成一系列的施工困难,伹由于仍然得到比较好的质量,所以仍保留于原文中。铝青铜的熔炼除大量使用废料时采用熔剂以外,如将铝铜中间合金推迟到浇铸前5~10分钟加入,避免生成多量的氧化铝,一般可以不用熔剂,也不必用氯化锌最后脱气。因为熔剂容易成杂质侵入合金中,并且也容易侵蚀坩埚。氯化锌会使合金成分难于控制,所以在操作正常时也以不用为宜。
This article describes the actual construction of the БрАМц9-2 aluminum bronze smelting, get good quality, is worth introducing, but in the smelting operation, due to premature addition of aluminum-copper master alloy, resulting in the formation of large amounts of alumina, and finally not Not using flux refining and zinc chloride degassing, resulting in a series of construction difficulties, 伹 still get better quality, it remains in the original text. In addition to extensive use of aluminum scrap melting flux, such as the aluminum-copper master alloy postponed until 5 to 10 minutes before casting to avoid the formation of large amounts of alumina, the general can not use flux, and do not have to use zinc chloride final degassing . Because the flux easily into the alloy into impurities, and also easy to attack the crucible. Zinc chloride will make the alloy composition difficult to control, so the normal operation is not appropriate.