By laser cladding, the sealing face of the in outlet valve parts in methylamine pump in urea production line has been strengthened.

采用激光熔覆技术对尿素生产线上的甲胺泵进排液阀零件密封面进行强化。

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Using the MIG surfacing method, Ni-alloy was deposited evenly on the sealing face of valve to enhance the performance and prolong the life of the valve.

采用熔化极惰性气体保护堆焊方式，在阀体密封面上均匀地熔敷镍基合金的耐磨焊层，从而达到改善阀体密封面的表面质量，显著延长阀体寿命的目的。

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The key problems of technique for plasma hardfacing for sealing face of valve such as blank making. Process selecting and quality controlling.

就阀门密封面等离子弧堆焊的技术关键问题：毛坯加工、工艺选择及质量控制等。

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