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3.4m减速机是三辊中板轧机的关键设备,减速机的中速齿轮辅寿命很短。其损坏形式是磨损、剥落、崩齿等。为了降低维修成本,满足生产需要,我们采取补焊的办法修复了3根崩齿多处要报废的中速齿轮轴,经使用效果良好,寿命达5个月以上。 1 补焊修复工艺根据齿轮轴材质的性能特点,在补焊时采取以下技术措施:①采取过渡层打底及中间缓冲层堆焊的工艺;②选择低氢塑焊条;③工件预热、焊后缓冷;④采取母体焊前回火和
3.4m reducer is the key equipment of the three-roll plate mill, the reducer medium-speed gear auxiliary life is very short. The damage is the form of wear and tear, peeling, collapse teeth. In order to reduce maintenance costs, to meet production needs, we take repair welding method to repair a number of broken teeth to scrap a number of medium-speed gear shaft, the use of good results, life expectancy of 5 months or more. 1 repair welding process According to the performance characteristics of the material of the gear shaft, take the following technical measures in the repair welding: ① take the transition layer primer and intermediate cushioning welding process; ② select low hydrogen plastic welding rod; ③ workpiece preheating, welding After the slow cooling; ④ take the mother before tempering and welding