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我厂铸造的阀体(HT30～54)内腔,其结构复杂,工作压力高(280～320公斤/厘米~2),内腔通道不允许有极微小的粘砂和残留氧化物,清理较困难。现采用硅整流电阻加热式电化学清理,效果良好。
The inner cavity of the valve body (HT30 ~ 54) cast by our factory has complex structure and high working pressure (280 ~ 320kg / cm ~ 2). The inner channel does not allow tiny sticky sand and residual oxide. difficult. Now using silicon rectifier resistance heating electrochemical cleaning, the effect is good.