液压转向机对齿条杆部表面有很高的耐磨、储油、封存要求，为此需要一套表面超精加工工艺及加工参数设定。

Requirements for hydraulic steering rack cylinder are very high, the rack cylinder should be durable, lubricants preservable and of seal. So, finish machining and parameter-set are necessary.

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文摘：液压转向机对齿条杆部表面有很高的耐磨、储油、封存要求，为此需要一套表面超精加工工艺及加工参数设定。

Abstract: requirements for hydraulic steering rack cylinder are very high the rack cylinder should be durable lubricants preservable and of seal. So finish machining and parameter-set are necessary.

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文章介绍了斗杆、齿条焊修的程序、步骤和注意事项。

This paper deals with the procedures, steps and precautions for repair welding of the bucket rod and the rack.

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