真空热处理是一种比较新的冶金处理工艺,目前已占领热处理市场的25%,到1991年底预计达到30%。这种增长速度已超过其它所有的工业加热过程和处理方法在本世纪最后十年内的增长速度。这主要是因为高温材料方面所取得的进步以及在钢铁工业和航空工业中各种超耐热不锈钢、工具钢、高速钢的用量不断增长。真空炉内的温度均匀性 Vacuum heat treatment is a relatively new metallurgical process that now occupies 25% of the heat treatment market and is projected to reach 30% by the end of 1991. This growth rate has surpassed all other industrial heating processes and treatment methods in the last decade of this century, the rate of growth. This is mainly due to the progress made in high-temperature materials and the increasing use of various superalloys, tool steels and high-speed steels in the steel industry and the aviation industry. Vacuum furnace temperature uniformity