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前轴(前梁)是汽车保安件,其锻造毛坯在机加工前需经调质处理,对锻造加热质量要求较高。七九年底我厂建成前轴锻造流水线,推杆炉选用RK型低压喷油咀,按装在炉头端部,炉尾喷出烟气使工人无法加料;炉底经常拱料,无翻钢门,操作异常困难;粘钢、过烧严重。据八○年统计资料,过烧废品率占2.8％,全年经济损失达3万元之多。由于推杆加热炉常出故障,锻锤作业率不高,生产被动。八○年四季度对该炉施行了技术改造:高温段炉顶按装了燃油平焰烧
Front axle (front beam) is a car security parts, the forging rough machining before being quenched and tempered, forging the higher the quality of heating. At the end of 1979, our factory built the shaft forging assembly line. The pusher furnace used RK type low-pressure fuel injection nozzle, which was installed at the end of the burner and the flue gas was emitted from the furnace so that the workers could not feed the material. The bottom of the furnace was often arch material, Door, the operation is extremely difficult; stick steel, over-burning serious. According to statistics from 1980, the rate of over-burning scrap accounted for 2.8% of the total annual economic loss of up to 30,000 yuan. As putter heating furnace often fail, forging hammer operation rate is not high, passive production. In the fourth quarter of 1980, a technical renovation of the furnace was carried out: