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彩涂卷板是以熱鍍鋅板、熱鍍鋁鋅板、電鍍鋅板等為基板,經表面預處理(化學脫脂及化學轉化處理)之后,在表面涂敷一層或幾層有機涂料,隨后經過烘烤固化而成的產品。也因涂有各種不同顏色的有機涂料彩色鋼卷板由此得名,簡稱彩涂卷。
使用鍍鋅鋼板為基板(ban)(ban)(ban)的彩(cai)色涂(tu)層(ceng)(ceng)鋼(gang)板(ban)(ban)(ban),除有(you)鋅保護外,鋅層(ceng)(ceng)上的有(you)機涂(tu)層(ceng)(ceng)起了覆(fu)蓋隔離(li)作用(yong),可防止鋼(gang)板(ban)(ban)(ban)生銹,使用(yong)壽(shou)命比(bi)鍍鋅鋼(gang)板(ban)(ban)(ban)更長(chang)(chang),據(ju)介(jie)紹涂(tu)層(ceng)(ceng)鋼(gang)板(ban)(ban)(ban)的使用(yong)壽(shou)命比(bi)鍍鋅鋼(gang)板(ban)(ban)(ban)長(chang)(chang)50%。 但是(shi),在不同(tong)(tong)的地區和不同(tong)(tong)的使用(yong)部位,采(cai)用(yong)相(xiang)同(tong)(tong)鍍鋅量、同(tong)(tong)種涂(tu)料(liao)、相(xiang)同(tong)(tong)涂(tu)層(ceng)(ceng)厚度(du)的彩(cai)色涂(tu)層(ceng)(ceng)板(ban)(ban)(ban),其(qi)使用(yong)壽(shou)命會有(you)很大的不同(tong)(tong)。