機械化(hua)造(zao)(zao)漿生(sheng)(sheng)(sheng)(sheng)產過(guo)程中雖(sui)然不使(shi)用(yong)化(hua)學藥品，腐蝕(shi)程度較(jiao)輕，但造(zao)(zao)紙(zhi)工業(ye)講究清潔，其機械設(she)備(bei)(bei)如采用(yong)普通鋼鐵(tie)(tie)制(zhi)造(zao)(zao)，使(shi)用(yong)時(shi)間長了難免會(hui)產生(sheng)(sheng)(sheng)(sheng)鐵(tie)(tie)銹，從而對紙(zhi)漿產生(sheng)(sheng)(sheng)(sheng)污(wu)染，因此廣泛采用(yong)不銹鋼制(zhi)造(zao)(zao)。為了在生(sheng)(sheng)(sheng)(sheng)產紙(zhi)的過(guo)程中減少污(wu)染和維(wei)修方便，如在造(zao)(zao)紙(zhi)過(guo)程中使(shi)用(yong)的冷卻塔(ta)、盛酸桶(tong)、蒸煮鍋等設(she)備(bei)(bei)及管(guan)道，也(ye)廣泛采用(yong)不銹鋼制(zhi)造(zao)(zao)。其應用(yong)情況見表2-18。