我们厂过去的低温回火油槽是放在人拉风箱的煤炉中进行。这种炉子温度不均,又不易控制,经常发生回火不足和过度的疵病,而且经常弄得满车间里乌烟障气,严重地影响工人的健康。同时超过其燃点还有发生火灾的危险,故升温,保温必须有一人经常看管,既不经济又不安全。我们在党的支持下和老师傅们的帮助下,采用 Our factory in the past low temperature tempering tank is placed in a person’s bellows furnace. Such furnaces are not temperature-controlled and are not easy to control. Insufficient tempering and excessive flaws often occur and they often cause foul trouble in the workshop and seriously affect workers’ health. At the same time more than its ignition point there is a danger of fire, so heating, insulation must have one regular care, neither economical nor safe. We used it with the support of the party and the help of the old masters