機(ji)械化造(zao)漿生(sheng)(sheng)產(chan)過程中(zhong)(zhong)雖然不使用(yong)(yong)化學藥(yao)品，腐蝕程度較輕，但(dan)造(zao)紙工業講究清潔，其(qi)機(ji)械設(she)備如采用(yong)(yong)普(pu)通鋼(gang)鐵制造(zao)，使用(yong)(yong)時(shi)間長了難免會產(chan)生(sheng)(sheng)鐵銹，從而對(dui)紙漿產(chan)生(sheng)(sheng)污(wu)染，因此廣泛(fan)采用(yong)(yong)不銹鋼(gang)制造(zao)。為了在生(sheng)(sheng)產(chan)紙的過程中(zhong)(zhong)減少(shao)污(wu)染和維修方便，如在造(zao)紙過程中(zhong)(zhong)使用(yong)(yong)的冷(leng)卻塔、盛酸桶、蒸(zheng)煮鍋(guo)等設(she)備及(ji)管道，也廣泛(fan)采用(yong)(yong)不銹鋼(gang)制造(zao)。其(qi)應(ying)用(yong)(yong)情況見表2-18。