According to this result, selftempering temperature of the bar under different control cooling condition was calculated, the process parameter affecting the selftempering temperature is obtained.
Raise the self-controlling ability of the transmission and heat-treatment system, and expanse the infra-red ray detection on the export of the tempering furnace.
Be not allowed to have denied that he is really not a all-round vanguard of technology now, but time for 4 years is enough for him to dawdle away temperingself with fire.