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一、气体的来源及其对铜体合金危害的方式在铜体合金(Copper base alloys)的熔化及浇铸过程中,气体对它的质量有很大的影响;尤其是在浇铸高级的磷青铜铸件时,更为重要。如果不加以适当的注意和控制,铸成的成品即有各种的气孔,减低了铸件的品质,甚至使之成为废品。熔液中气体的来源有两方面:一是从加进去的原料带进去的,另一方面就是从熔炉的空气中得来。对于第一个来源的防止方法,我们只能在加料时注意。加进去的原料必须干燥和清洁。通常加进去的铜锭(Copper ingot)内,如果能含有少许的氧
I. SOURCE OF SOURCES AND THEIR HAZARD TO COPPER ALLOYS The gas has a significant influence on the quality of its products during the melting and casting of copper base alloys, especially in the casting of advanced phosphor bronze castings When more important. If you do not pay proper attention and control, the finished product that has a variety of pores, reducing the quality of castings, or even make it a waste. The source of the gas in the melt is twofold: first, it is brought in from the raw material fed into it and, on the other hand, from the air in the furnace. For the first source of prevention, we can only pay attention when feeding. The ingredients added must be dry and clean. Usually add copper ingots, if you can contain a little oxygen