彩涂卷批發鍍鋅鋼板為基板的彩涂鋼板，除有鋅保護外，鋅層上的有機涂層起了覆蓋隔離作用，可防止鋼板生銹，使用壽命比鍍鋅鋼板更長，據介紹涂層鋼板的使用壽命比鍍鋅鋼板長50%。渝北彩涂卷在(zai)連續機組上以冷軋帶鋼，鍍(du)鋅(xin)帶鋼（電鍍(du)鋅(xin)和熱鍍(du)鋅(xin)）為基板(ban)，經過表(biao)面(mian)預(yu)處(chu)理（脫脂(zhi)和化學處(chu)理），用(yong)輥涂(tu)的(de)(de)(de)方法，涂(tu)上一(yi)層(ceng)(ceng)(ceng)或(huo)多層(ceng)(ceng)(ceng)液態涂(tu)料，經過烘烤和冷卻所得的(de)(de)(de)板(ban)材即為涂(tu)層(ceng)(ceng)(ceng)鋼板(ban)。由于(yu)涂(tu)層(ceng)(ceng)(ceng)可以有各種不同的(de)(de)(de)顏色(se)，習慣上把(ba)涂(tu)層(ceng)(ceng)(ceng)鋼板(ban)叫(jiao)做(zuo)彩色(se)涂(tu)層(ceng)(ceng)(ceng)鋼板(ban)。又由于(yu)涂(tu)層(ceng)(ceng)(ceng)是(shi)在(zai)鋼板(ban)成型(xing)加工之前進行的(de)(de)(de)，在(zai)國外(wai)這叫(jiao)做(zuo)預(yu)涂(tu)層(ceng)(ceng)(ceng)鋼板(ban)。

鍍(du)(du)(du)鋅(xin)(xin)鋼板的表(biao)面鍍(du)(du)(du)鋅(xin)(xin)主(zhu)要采用(yong)的方法(fa)是(shi)熱(re)(re)(re)鍍(du)(du)(du)鋅(xin)(xin)。熱(re)(re)(re)鍍(du)(du)(du)鋅(xin)(xin)是(shi)由較(jiao)古老的熱(re)(re)(re)鍍(du)(du)(du)方法(fa)發(fa)展(zhan)(zhan)而來的，自從1836年(nian)法(fa)國把(ba)熱(re)(re)(re)鍍(du)(du)(du)鋅(xin)(xin)應用(yong)于(yu)(yu)工(gong)(gong)業以來，已(yi)經(jing)有一百七十年(nian)的歷史了。然而，熱(re)(re)(re)鍍(du)(du)(du)鋅(xin)(xin)工(gong)(gong)業是(shi)近(jin)三十年(nian)來伴隨冷軋(ya)帶鋼的飛速發(fa)展(zhan)(zhan)而得到了大規模發(fa)展(zhan)(zhan)。鍍(du)(du)(du)鋅(xin)(xin)溶液(ye)有氰(qing)化(hua)(hua)物鍍(du)(du)(du)液(ye)和(he)無(wu)(wu)氰(qing)鍍(du)(du)(du)液(ye)兩類(lei)。氰(qing)化(hua)(hua)物鍍(du)(du)(du)液(ye)中(zhong)分(fen)微(wei)氰(qing)、低氰(qing)、中(zhong)氰(qing)、和(he)高氰(qing)幾類(lei)。無(wu)(wu)氰(qing)鍍(du)(du)(du)液(ye)有堿性鋅(xin)(xin)酸鹽(yan)鍍(du)(du)(du)液(ye)、銨(an)鹽(yan)鍍(du)(du)(du)液(ye)、硫酸鹽(yan)鍍(du)(du)(du)液(ye)及無(wu)(wu)氨(an)氯化(hua)(hua)物鍍(du)(du)(du)液(ye)等。氰(qing)化(hua)(hua)鍍(du)(du)(du)鋅(xin)(xin)溶液(ye)均鍍(du)(du)(du)能力好，得到的鍍(du)(du)(du)層光滑(hua)細致，在生產中(zhong)被(bei)長(chang)期采用(yong)。但由于(yu)(yu)氰(qing)化(hua)(hua)物劇(ju)毒，對環境(jing)污染(ran)嚴重，近(jin)年(nian)來已(yi)趨向于(yu)(yu)采用(yong)低氰(qing)、微(wei)氰(qing)、無(wu)(wu)氰(qing)鍍(du)(du)(du)鋅(xin)(xin)溶液(ye)。

由于我國鋅(xin)(xin)(xin)資源(yuan)比較(jiao)豐富，鍍(du)鋅(xin)(xin)(xin)又(you)是(shi)一種價(jia)廉、能(neng)防銹(xiu)，又(you)能(neng)裝飾的(de)高(gao)性價(jia)比鍍(du)種，因而在(zai)汽車、機械、電(dian)子、船舶、儀表、輕工(gong)等(deng)(deng)工(gong)業(ye)(ye)部(bu)門得到廣泛(fan)的(de)應用。如機械零(ling)件、低壓電(dian)器(qi)、高(gao)壓開關、緊固連接件、鋼(gang)鐵(tie)結(jie)構(gou)件、建(jian)筑五(wu)金、農業(ye)(ye)機械、輕工(gong)產(chan)品等(deng)(deng)都離不開鍍(du)鋅(xin)(xin)(xin)鈍化制(zhi)品。鍍(du)鋅(xin)(xin)(xin)板(ban)(ban)卷(juan)(juan)因此可分為熱(re)(re)軋鍍(du)鋅(xin)(xin)(xin)板(ban)(ban)卷(juan)(juan)和冷軋熱(re)(re)鍍(du)鋅(xin)(xin)(xin)板(ban)(ban)卷(juan)(juan)，它們主要(yao)用于建(jian)筑、家電(dian)、汽車、容器(qi)、交通及家業(ye)(ye)等(deng)(deng)領域。特(te)別是(shi)鋼(gang)結(jie)構(gou)建(jian)筑、汽車制(zhi)造、鋼(gang)板(ban)(ban)倉制(zhi)造等(deng)(deng)行(xing)業(ye)(ye)。 重慶鍍(du)鋅(xin)(xin)(xin)卷(juan)(juan)特(te)點主要(yao)為：耐腐蝕強、表面質量好、得利于深加工(gong)、經濟(ji)實用等(deng)(deng)。

隨著(zhu)鋼(gang)結構在(zai)(zai)建筑(zhu)(zhu)材料中(zhong)的(de)(de)(de)(de)(de)(de)興起，越(yue)來越(yue)多(duo)的(de)(de)(de)(de)(de)(de)人(ren)選擇使用(yong)(yong)鋼(gang)結構樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)了(le)(le)(le)，鋼(gang)結構構件工(gong)廠產業化生(sheng)產大(da)大(da)縮短了(le)(le)(le)工(gong)程工(gong)期(qi)，而樓(lou)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)施工(gong)方法卻(que)成為影響工(gong)期(qi)的(de)(de)(de)(de)(de)(de)重要(yao)因素(su)。采用(yong)(yong)那一(yi)代樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)對(dui)于樓(lou)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)耐火性能也(ye)有(you)區(qu)別。樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)厚度(du)(du)一(yi)般都是(shi)按保(bao)險起見設計(ji)的(de)(de)(de)(de)(de)(de)比(bi)較厚，正常情況下鋼(gang)梁之間的(de)(de)(de)(de)(de)(de)跨(kua)度(du)(du)在(zai)(zai)2m以內樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚度(du)(du)在(zai)(zai)0.75-0.8mm就(jiu)可以了(le)(le)(le)，2-2.5m樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚度(du)(du)用(yong)(yong)0.8-1.0就(jiu)可以了(le)(le)(le)，跨(kua)度(du)(du)在(zai)(zai)3-4米樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚度(du)(du)用(yong)(yong)1.5mm，超過5m的(de)(de)(de)(de)(de)(de)跨(kua)度(du)(du)是(shi)用(yong)(yong)臨時支(zhi)撐，因素(su)就(jiu)是(shi)混(hun)泥(ni)土澆(jiao)筑(zhu)(zhu)的(de)(de)(de)(de)(de)(de)高度(du)(du)，混(hun)泥(ni)土澆(jiao)筑(zhu)(zhu)的(de)(de)(de)(de)(de)(de)越(yue)高，樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)所需要(yao)的(de)(de)(de)(de)(de)(de)厚度(du)(du)也(ye)就(jiu)越(yue)厚，還有(you)一(yi)個(ge)大(da)家容易忽(hu)略的(de)(de)(de)(de)(de)(de)因素(su)就(jiu)是(shi)螺釘(ding)的(de)(de)(de)(de)(de)(de)好壞(huai)也(ye)是(shi)決定(ding)樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)厚度(du)(du)的(de)(de)(de)(de)(de)(de)，螺釘(ding)越(yue)好樓(lou)承(cheng)(cheng)(cheng)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)承(cheng)(cheng)(cheng)載力就(jiu)越(yue)強(qiang)。