南呂鎮常規機械密封失效原因有哪些?
腐(fu)蝕(shi)(shi)原(yuan)因(yin):在(zai)工(gong)作介質的影響(xiang)下,機械密(mi)封器件受(shou)到了侵蝕(shi)(shi),在(zai)其外部會(hui)(hui)出現一定(ding)的腐(fu)蝕(shi)(shi)面,如果不及時(shi)處(chu)理(li),會(hui)(hui)越(yue)來越(yue)嚴重(zhong),直(zhi)至出現腐(fu)蝕(shi)(shi)穿(chuan)透現象,同(tong)時(shi),工(gong)作介質還會(hui)(hui)使異種金...