在铸造工作过程中,为了要烘干砂型,而化费的时间往往是很多的,因为砂坭的导热性不好,所以砂型在短时间内就很难烘干;而且烘砂型用的烘模炉的体积利用率一般只有0．15~0.25,因此每吨铸件所需的燃料,总在100~150公斤左右;此外,在工场中烘模炉所占去的面积也是很大的。为了设法免去这步手续,或缩短烘干的时间,曾经利用从炉子 In the casting process, in order to dry the sand, and the cost of time is often a lot of, because the thermal conductivity of sand is not good, so the sand in a short time it is difficult to dry; and bake sand drying mold Furnace volume utilization is generally only 0.15 ~ 0.25, so the fuel needed per ton of castings, always in the 100 to 150 kg; In addition, the area occupied by the oven drying furnace is also great. In order to try to get rid of this procedure, or to shorten the drying time, once used from the stove