The study and experiment on the repair of roller journal CO_2 shield welding with proper welding technics has been done by us. Results prove that this method is feasible.

• 用CO_2气体保护焊方法采用适当焊接工艺及焊接材料，对压榨机辊轴轴颈进行了补焊修复实验研究。结果表明这种方法是可行的。