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。
By laser cladding, the sealing face of the in outlet valve parts in methylamine pump in urea production line has been strengthened.
高压法三聚氰胺装置熔融尿素升压泵运行过程发生多起断轴事故，使装置多次出现非计划停工。
The packing axle seal of the melt urea pump leaked seriously, leading to many harmful effects, so we revamped the form of axle seal.
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