彩涂板批發鍍鋅鋼板的表面鍍鋅主要采用的方法是熱鍍鋅。咸陽彩涂板熱鍍(du)(du)(du)鋅(xin)是由(you)(you)較古老(lao)的(de)(de)熱鍍(du)(du)(du)方法(fa)發(fa)展(zhan)(zhan)而來的(de)(de)，自從1836年(nian)法(fa)國把(ba)熱鍍(du)(du)(du)鋅(xin)應用于工業(ye)(ye)以來，已經有(you)(you)一百七十(shi)年(nian)的(de)(de)歷史了(le)。然而，熱鍍(du)(du)(du)鋅(xin)工業(ye)(ye)是近三十(shi)年(nian)來伴隨冷軋帶鋼的(de)(de)飛速發(fa)展(zhan)(zhan)而得到(dao)(dao)了(le)大規模發(fa)展(zhan)(zhan)。鍍(du)(du)(du)鋅(xin)溶(rong)液(ye)(ye)(ye)有(you)(you)氰(qing)(qing)(qing)(qing)(qing)化(hua)(hua)(hua)物鍍(du)(du)(du)液(ye)(ye)(ye)和無(wu)(wu)氰(qing)(qing)(qing)(qing)(qing)鍍(du)(du)(du)液(ye)(ye)(ye)兩類。氰(qing)(qing)(qing)(qing)(qing)化(hua)(hua)(hua)物鍍(du)(du)(du)液(ye)(ye)(ye)中分微(wei)氰(qing)(qing)(qing)(qing)(qing)、低(di)氰(qing)(qing)(qing)(qing)(qing)、中氰(qing)(qing)(qing)(qing)(qing)、和高(gao)氰(qing)(qing)(qing)(qing)(qing)幾類。無(wu)(wu)氰(qing)(qing)(qing)(qing)(qing)鍍(du)(du)(du)液(ye)(ye)(ye)有(you)(you)堿性鋅(xin)酸鹽(yan)鍍(du)(du)(du)液(ye)(ye)(ye)、銨鹽(yan)鍍(du)(du)(du)液(ye)(ye)(ye)、硫酸鹽(yan)鍍(du)(du)(du)液(ye)(ye)(ye)及無(wu)(wu)氨氯(lv)化(hua)(hua)(hua)物鍍(du)(du)(du)液(ye)(ye)(ye)等(deng)。氰(qing)(qing)(qing)(qing)(qing)化(hua)(hua)(hua)鍍(du)(du)(du)鋅(xin)溶(rong)液(ye)(ye)(ye)均鍍(du)(du)(du)能(neng)力(li)好，得到(dao)(dao)的(de)(de)鍍(du)(du)(du)層(ceng)光滑細致(zhi)，在生產中被長(chang)期(qi)采(cai)用。但由(you)(you)于氰(qing)(qing)(qing)(qing)(qing)化(hua)(hua)(hua)物劇毒，對環境污染嚴(yan)重，近年(nian)來已趨向(xiang)于采(cai)用低(di)氰(qing)(qing)(qing)(qing)(qing)、微(wei)氰(qing)(qing)(qing)(qing)(qing)、無(wu)(wu)氰(qing)(qing)(qing)(qing)(qing)鍍(du)(du)(du)鋅(xin)溶(rong)液(ye)(ye)(ye)。

用(yong)(yong)(yong)電鍍(du)(du)(du)法制造這種(zhong)(zhong)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)具(ju)有(you)(you)良好的(de)(de)(de)加工性(xing)。但鍍(du)(du)(du)層較薄，耐腐蝕性(xing)不(bu)如(ru)熱浸法鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)；單面(mian)(mian)鍍(du)(du)(du)和雙(shuang)(shuang)面(mian)(mian)差(cha)(cha)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)。單面(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)，即(ji)只(zhi)在(zai)(zai)一(yi)面(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)的(de)(de)(de)產(chan)品(pin)。在(zai)(zai)焊接(jie)、涂(tu)(tu)裝、防(fang)(fang)銹(xiu)處理、加工等方(fang)面(mian)(mian)，具(ju)有(you)(you)比雙(shuang)(shuang)面(mian)(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)好的(de)(de)(de)適應性(xing)。為(wei)(wei)克(ke)服(fu)單面(mian)(mian)未涂(tu)(tu)鋅(xin)(xin)(xin)的(de)(de)(de)缺點(dian)，又有(you)(you)一(yi)種(zhong)(zhong)在(zai)(zai)另面(mian)(mian)涂(tu)(tu)以薄層鋅(xin)(xin)(xin)的(de)(de)(de)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)，即(ji)雙(shuang)(shuang)面(mian)(mian)差(cha)(cha)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)；合(he)(he)金(jin)、復合(he)(he)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)。它是用(yong)(yong)(yong)鋅(xin)(xin)(xin)和其他金(jin)屬如(ru)鉛、鋅(xin)(xin)(xin)制成(cheng)合(he)(he)金(jin)乃(nai)至(zhi)復合(he)(he)鍍(du)(du)(du)成(cheng)的(de)(de)(de)鋼(gang)板(ban)。這種(zhong)(zhong)鋼(gang)板(ban)既具(ju)有(you)(you)防(fang)(fang)銹(xiu)性(xing)能(neng)，又有(you)(you)良好的(de)(de)(de)涂(tu)(tu)裝性(xing)能(neng)。 除(chu)上述五種(zhong)(zhong)外(wai)，還(huan)有(you)(you)彩(cai)色鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)、印花涂(tu)(tu)裝鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)、聚氯(lv)乙烯(xi)疊(die)層鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)等。但目前常用(yong)(yong)(yong)的(de)(de)(de)仍為(wei)(wei)熱浸鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)。 鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)按用(yong)(yong)(yong)途又可分為(wei)(wei)一(yi)般(ban)用(yong)(yong)(yong)、屋(wu)頂用(yong)(yong)(yong)、建(jian)筑外(wai)側板(ban)用(yong)(yong)(yong)、結構用(yong)(yong)(yong)、瓦壟板(ban)用(yong)(yong)(yong)、拉(la)伸用(yong)(yong)(yong)和深(shen)沖用(yong)(yong)(yong)等鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)。

鍍(du)(du)鋅(xin)(xin)帶(dai)鋼(gang)的鋅(xin)(xin)層特性 電(dian)鍍(du)(du)鋅(xin)(xin)層是(shi)不能形(xing)成鋅(xin)(xin)花(hua)的，熱鍍(du)(du)鋅(xin)(xin)層則有(you)(you)鋅(xin)(xin)花(hua)，其形(xing)成過程如下：當鍍(du)(du)鋅(xin)(xin)帶(dai)從(cong)鋅(xin)(xin)鍋出來后，經氣刀(dao)的噴吹，大(da)量(liang)鋅(xin)(xin)液被吹回鋅(xin)(xin)鍋，這(zhe)時帶(dai)鋼(gang)表面還(huan)有(you)(you)純鋅(xin)(xin)層，呈液 態附在(zai)鋼(gang)板表面，在(zai)鋼(gang)板表面形(xing)成大(da)量(liang)結(jie)晶核，隨著鋼(gang)板上升冷卻(que)，使結(jie)晶核慢慢長成鋅(xin)(xin)花(hua)。冷卻(que)速(su)度越(yue)快鋅(xin)(xin)花(hua)越(yue)小，冷卻(que)速(su)度越(yue)慢鋅(xin)(xin)花(hua)越(yue)大(da)。熱鍍(du)(du)鋅(xin)(xin)帶(dai)鋼(gang)在(zai)我(wo)國(guo)市(shi)場(chang)一(yi)直是(shi)緊(jin)缺品(pin)種。從(cong)20世紀90年代中期以(yi)來，每(mei)年都要從(cong)國(guo)外(wai)進口80-100萬t左右。隨著國(guo)內經濟的發展(zhan)，尤其是(shi)汽車、家(jia)電(dian)及建筑業(ye)的發展(zhan)，對(dui)鍍(du)(du)鋅(xin)(xin)帶(dai)鋼(gang)的需(xu)求量(liang)也大(da)大(da)增(zeng)加。

鍍(du)鋅(xin)卷分(fen)熱(re)鍍(du)鋅(xin)和電(dian)鍍(du)鋅(xin)兩種(zhong)，熱(re)鍍(du)鋅(xin)鍍(du)鋅(xin)層(ceng)厚(hou)，具有(you)鍍(du)層(ceng)均勻(yun)，附著(zhu)力強(qiang)(qiang)，使用壽(shou)命長等優(you)點。電(dian)鍍(du)鋅(xin)成(cheng)本低，表面不是(shi)很光滑(hua)，其本身的(de)耐腐蝕(shi)性比熱(re)鍍(du)鋅(xin)管相(xiang)差很多。提起鍍(du)鋅(xin)管，可能沒接觸過(guo)建材的(de)朋友(you)并(bing)不了解。從1935年(nian)建立(li)一條(tiao)連續(xu)涂層(ceng)鋼(gang)板(ban)線開始，彩(cai)(cai)涂板(ban)得到了廣泛應用，目前彩(cai)(cai)涂板(ban)的(de)品(pin)種(zhong)繁多，大約超過(guo)600種(zhong)，彩(cai)(cai)涂板(ban)兼有(you)機聚(ju)合物與鋼(gang)板(ban)兩者(zhe)的(de)優(you)點，既(ji)有(you)有(you)機聚(ju)合物的(de)良好著(zhu)色(se)性、成(cheng)型性、耐蝕(shi)性、裝飾性、又有(you)鋼(gang)板(ban)的(de)高(gao)強(qiang)(qiang)度和易加工性，能很容(rong)易地(di)進行(xing)沖壓裁(cai)剪(jian)、彎曲、深沖等加工。