機械化造(zao)漿(jiang)生(sheng)產過程中(zhong)雖然不(bu)使(shi)用(yong)(yong)(yong)(yong)化學藥品，腐(fu)蝕程度較(jiao)輕，但造(zao)紙工業講究清潔，其機械設(she)備如采用(yong)(yong)(yong)(yong)普(pu)通(tong)鋼鐵(tie)制造(zao)，使(shi)用(yong)(yong)(yong)(yong)時間長了(le)難免(mian)會產生(sheng)鐵(tie)銹(xiu)，從而對紙漿(jiang)產生(sheng)污(wu)染，因此廣泛采用(yong)(yong)(yong)(yong)不(bu)銹(xiu)鋼制造(zao)。為了(le)在生(sheng)產紙的(de)過程中(zhong)減少污(wu)染和維修方便，如在造(zao)紙過程中(zhong)使(shi)用(yong)(yong)(yong)(yong)的(de)冷卻塔、盛(sheng)酸桶(tong)、蒸煮鍋(guo)等設(she)備及管道，也廣泛采用(yong)(yong)(yong)(yong)不(bu)銹(xiu)鋼制造(zao)。其應(ying)用(yong)(yong)(yong)(yong)情況(kuang)見表2-18。