我厂在相应增产节约与技术革新运动中,制造黑心马铁管件的退火时间已由过去140小时逐溅缩短到58小时,因此提高了退火炉的利用率,相对降低了产品成本,对质量上也有所改进,今将几点经验介绍如下。 I plant in the corresponding production conservation and technological innovation movement, the manufacture of black heart ferrite tube annealing time spill from the last 140 hours shortened to 58 hours, thus increasing the utilization rate of the annealing furnace, the relative reduction of product costs, the quality also has Improvement, a few experiences will be introduced below.