我厂四缸泵上的铝铸件,是采用金属型浇注,然后送热处理淬火。其工艺过程是:在井式炉内加热,加热温度为520°±5℃,到温后保温2.5小时。这种加热方法升温时间长、能源消耗大、很不经济。而且,我厂只有一台RJJ-36-6井式炉,用于铸铝件的淬火。每炉只能装44kg铸件,相当于我厂化铝炉熔量的三分之一。我厂每天浇注4炉,需要淬火12炉次,每炉次平均4小时,则需要48小时。因而在我厂铝合金的生产中,淬火成为影响生产的环节。以前再加上电力紧张,使已感生产紧张的热处理,更加困难。为解决这个问题,我们认为如能利用铸件脱模后的余热进行淬火,则即可节约电能, I plant four-cylinder pump on the aluminum castings, is the use of metal pouring, and then send heat treatment quenching. The process is: in the pit furnace heating, heating temperature of 520 ° ± 5 ℃, to warm after 2.5 hours. This heating method for a long time heating, energy consumption, it is not economical. Moreover, I plant only one RJJ-36-6 pit furnace, used for quenching cast aluminum parts. Each furnace can only be loaded with 44kg castings, equivalent to one-third of the melting furnace I plant aluminum. I plant pouring 4 furnaces per day, need to quench 12 heats, an average of 4 hours per furnace, you need 48 hours. Therefore, in our factory aluminum production, quenching has become an impact on the production link. Coupled with the power shortage in the past, it has made it more difficult to heat-treat the already perceived production strain. In order to solve this problem, we think that if the castings can be used after quenching the residual heat quench, you can save electricity,