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Al Cu合金熔体中的氢含量在 780℃以下保持恒定 ,此后氢含量随温度升高急剧增加 ,分析表明合金元素Cu在780℃以下对过热铝熔体中的氢含量影响起主导作用 ,即在此温度以下铝液吸氢程度取决于铝液表面氧化膜的性质。试验研究表明在同一过热度下 ,铝熔体中氢含量随合金元素Cu加入量的增多而下降。
The hydrogen content in the Al Cu alloy melt remains constant below 780 ° C, and the hydrogen content increases rapidly with increasing temperature. The analysis shows that the alloying element Cu plays a leading role in the hydrogen content in the overheated aluminum melt below 780 ° C, ie, Below this temperature, the degree of hydrogen absorption of molten aluminum depends on the nature of the oxide film on the surface of the molten aluminum. Experimental studies show that with the same degree of superheat, the hydrogen content of aluminum melt with the addition of alloying elements Cu decreased.