迄今为止,国内在热处理工艺上油浴炉使用较广泛,但炉子供能形式多数采用电阻丝外热式,能量损耗较大。节能型的内热式加热技术只在最近几年内才被逐步地采用。 我厂在油浴炉的改造方面做了一些工作,并取得了一定的节能经济效果。其改造的主要之点是:油浴炉外热式改为内热式,周围用硅酸铝纤维毡、耐火砖等保温,采用可控温装置。 So far, domestic oil bath furnace heat treatment process is more widely used, but most of the form of furnace power supply resistance wire with external heat, energy loss. Energy-saving, internal heating technology has only been adopted gradually in recent years. I plant in the transformation of the oil bath furnace to do some work, and achieved some energy-saving economic results. The transformation of the main points are: oil bath furnace heat replaced by heat type, surrounded by aluminum silicate fiber mat, refractory bricks and other insulation, the use of temperature control device.