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随着工农业生产的不断发展,我厂机组也在不断增加,阀门的需要量也不断增加。例如,每台炉子均有各种阀门100多只。原来 Dy-100截止阀密封面,大多是用1Cr18Ni9Ti 不锈钢焊条堆焊,运行8～9个月后,阀门密封面就要漏水、漏汽,最多运行一年就要停炉检修,其中 Dy—20截止阀要定期排污,最容易泄漏。每台炉子大修时,检修阀门的工作量很大,劳动力花费多,停炉时间长。采用进口
With the continuous development of industrial and agricultural production, I plant units are also increasing, the valve needs also continue to increase. For example, each stove has more than 100 valves. The original sealing surface Dy-100 globe valve, mostly with 1Cr18Ni9Ti stainless steel electrode surfacing, running 8 to 9 months, the valve sealing surface will leak, leak steam, up to a year of operation will stop furnace maintenance, including Dy-20 Globe valve to regular sewage, the most likely to leak. Overhaul of each stove, the maintenance of the valve a lot of work, labor costs, shutdown a long time. Imported