青田常規機械密封失效原因有哪些?
腐蝕(shi)(shi)原(yuan)因:在(zai)工(gong)(gong)作介質的(de)影(ying)響下,機械密(mi)封器件(jian)受到了侵(qin)蝕(shi)(shi),在(zai)其外部會出(chu)(chu)現(xian)一定的(de)腐蝕(shi)(shi)面,如果不及時(shi)處(chu)理,會越(yue)來越(yue)嚴(yan)重,直至出(chu)(chu)現(xian)腐蝕(shi)(shi)穿透現(xian)象(xiang),同時(shi),工(gong)(gong)作介質還會使異(yi)種金...