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对A356.2铝合金锭、熔炼炉中熔体、浇包中熔体以及低压铸造机保温炉中熔体的锶含量进行了对比分析,研究了锶元素在A356.2铝合金熔炼过程中的烧损情况。结果表明,A356.2铝合金中锶在熔炼过程中烧损程度较大,在低压铸造机保温炉中的烧损比熔炼过程中的锶烧损要少,为达到工艺要求可在精炼除气前添加铝-锶合金来调整锶含量。
The strontium content of the melt in the A356.2 aluminum alloy ingot, the melting furnace in the melting furnace, the melt in the ladle and the holding furnace in the low-pressure casting machine were compared and analyzed. The effects of strontium on the melting process of A356.2 aluminum alloy Burning situation. The results show that strontium in A356.2 aluminum alloy is burnt to a large extent in the smelting process. The burning loss of strontium in the low-pressure casting machine holding furnace is less than the burning of strontium in the smelting process. In order to meet the technical requirements, Before adding aluminum - strontium alloy to adjust the strontium content.