通常,钢液的真空处理主要地是用于除气(氢、氧、氮等),但同时也用于脱碳、脱硫与降低钢中非金属夹杂物等,故采用“真空处理”这一术语比“真空除气”较为确切。要求真空处理设备所能达到的真空度并非越高越好,这里,应当考虑经济性和必要性。不同的处理目的要求不同的真空度。当 Usually, the vacuum treatment of molten steel is mainly used for degassing (hydrogen, oxygen, nitrogen, etc.), but also for decarburization, desulfurization and reduce non-metallic inclusions in steel, so the “vacuum” The term is more precise than “vacuum degassing”. The degree of vacuum required for the vacuum processing equipment to be achieved is not as high as possible, and economy and necessity should be considered here. Different processing requirements require different degrees of vacuum. when