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我厂锻工车间生产轴承套圈毛坯,文化大革命前一直采用空气锤胎模锻的落后工艺。主要有以下弊病(以208为例):要经过四次加热(包括切料),火耗大,钢材利用率低,只有45％;生产效率低,包括切料在内全部生产人员27人,班产约400套;模具损耗大,每套模具用Cr40或GCr15约45公斤;质量差,废品率高;工人劳动强度大,安全事故严重。经过无产阶级文化大革命锻炼的工人同志,看在眼里,急在心上,决心要改变这一落后面貌,
I plant forging workshop production bearing rings blank, before the Cultural Revolution has been using air hammer die forging backward technology. Mainly has the following shortcomings (208 as an example): to go through four heating (including cutting), fire, steel utilization rate is low, only 45%; production efficiency is low, including cutting all production staff, including 27 people, Class production of about 400 sets; mold loss, each mold with Cr40 or GCr15 about 45 kg; poor quality, high rejection rate; workers labor-intensive, serious security incidents. After working through the Great Proletarian Cultural Revolution, workers’ comrades, anxious in their hearts and determined to change this backwardness,