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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的彩色涂(tu)(tu)(tu)層鋼板,除有(you)鋅(xin)(xin)保護(hu)外,鋅(xin)(xin)層上(shang)的有(you)機涂(tu)(tu)(tu)層起了覆蓋隔離作(zuo)用(yong)(yong),可(ke)防止鋼板生銹,使(shi)用(yong)(yong)壽(shou)命(ming)比鍍鋅(xin)(xin)鋼板更長,據(ju)介紹涂(tu)(tu)(tu)層鋼板的使(shi)用(yong)(yong)壽(shou)命(ming)比鍍鋅(xin)(xin)鋼板長50%。 但是,在不(bu)同(tong)(tong)的地(di)區和(he)不(bu)同(tong)(tong)的使(shi)用(yong)(yong)部位,采(cai)用(yong)(yong)相同(tong)(tong)鍍鋅(xin)(xin)量、同(tong)(tong)種(zhong)涂(tu)(tu)(tu)料、相同(tong)(tong)涂(tu)(tu)(tu)層厚度的彩色涂(tu)(tu)(tu)層板,其(qi)使(shi)用(yong)(yong)壽(shou)命(ming)會有(you)很大的不(bu)同(tong)(tong)。