鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板的(de)(de)表面鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)主(zhu)要采用的(de)(de)方法是熱鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)。熱鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)是由較古老的(de)(de)熱鍍(du)(du)(du)方法發(fa)展而(er)來(lai)(lai)的(de)(de)，自從1836年(nian)(nian)法國把熱鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)應用于工業(ye)以來(lai)(lai)，已經有一百七(qi)十年(nian)(nian)的(de)(de)歷史了。然(ran)而(er)，熱鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)工業(ye)是近三(san)十年(nian)(nian)來(lai)(lai)伴隨冷軋(ya)帶鋼的(de)(de)飛速發(fa)展而(er)得(de)到了大(da)規模發(fa)展。鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)溶液(ye)有氰(qing)(qing)化物(wu)鍍(du)(du)(du)液(ye)和無(wu)(wu)氰(qing)(qing)鍍(du)(du)(du)液(ye)兩類。氰(qing)(qing)化物(wu)鍍(du)(du)(du)液(ye)中(zhong)分微(wei)氰(qing)(qing)、低氰(qing)(qing)、中(zhong)氰(qing)(qing)、和高氰(qing)(qing)幾(ji)類。無(wu)(wu)氰(qing)(qing)鍍(du)(du)(du)液(ye)有堿(jian)性(xing)鋅(xin)(xin)(xin)(xin)酸鹽鍍(du)(du)(du)液(ye)、銨鹽鍍(du)(du)(du)液(ye)、硫酸鹽鍍(du)(du)(du)液(ye)及無(wu)(wu)氨氯化物(wu)鍍(du)(du)(du)液(ye)等。氰(qing)(qing)化鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)溶液(ye)均鍍(du)(du)(du)能力好(hao)，得(de)到的(de)(de)鍍(du)(du)(du)層(ceng)光滑(hua)細致，在生產中(zhong)被長期采用。但由于氰(qing)(qing)化物(wu)劇毒，對(dui)環境污染嚴重，近年(nian)(nian)來(lai)(lai)已趨向于采用低氰(qing)(qing)、微(wei)氰(qing)(qing)、無(wu)(wu)氰(qing)(qing)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)溶液(ye)。

鍍(du)鋅(xin)(xin)(xin)(xin)是一種經(jing)(jing)常采用(yong)的經(jing)(jing)濟(ji)而有效的防腐方(fang)法。鋅(xin)(xin)(xin)(xin)產(chan)量(liang)(liang)的一半左右均用(yong)于(yu)此種工藝。鍍(du)鋅(xin)(xin)(xin)(xin)卷(juan)(juan)是為(wei)防止(zhi)鋼板(ban)(ban)表面(mian)遭受腐蝕延(yan)長其使用(yong)壽命(ming)，在(zai)鋼板(ban)(ban)表面(mian)涂以(yi)一層金屬鋅(xin)(xin)(xin)(xin)，這種涂鋅(xin)(xin)(xin)(xin)的鋼板(ban)(ban)稱(cheng)為(wei)鍍(du)鋅(xin)(xin)(xin)(xin)卷(juan)(juan)。鍍(du)鋅(xin)(xin)(xin)(xin)卷(juan)(juan)主要用(yong)于(yu)建筑(zhu)(zhu)、家(jia)電、汽車、容器(qi)、交通及家(jia)業等領域。特別(bie)是鋼結構建筑(zhu)(zhu)、汽車制(zhi)造、鋼板(ban)(ban)倉制(zhi)造等行業。耐腐蝕強(qiang)、表面(mian)質量(liang)(liang)好、得利(li)于(yu)深加工、經(jing)(jing)濟(ji)實用(yong)等。有關產(chan)品(pin)標(biao)準都列明鍍(du)鋅(xin)(xin)(xin)(xin)卷(juan)(juan)推薦(jian)的標(biao)準厚度、長度和寬(kuan)度及其允(yun)許偏(pian)差。鍍(du)鋅(xin)(xin)(xin)(xin)卷(juan)(juan)厚度偏(pian)差一般(ban)(ban)在(zai)0.05mm，長寬(kuan)偏(pian)差一般(ban)(ban)在(zai)5mm ，板(ban)(ban)材的厚度一般(ban)(ban)在(zai)0.2-3.2之間(jian) 。

樓(lou)(lou)承(cheng)板(ban)(ban)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)首要(yao)起到(dao)防腐的(de)(de)效果，按標(biao)準(zhun)組合(he)樓(lou)(lou)板(ban)(ban)與非(fei)組合(he)樓(lou)(lou)板(ban)(ban)壓型(xing)鋼板(ban)(ban)應(ying)選(xuan)用(yong)(yong)熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)，不該選(xuan)用(yong)(yong)電鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼板(ban)(ban)，其雙面(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)層總含(han)(han)量(liang)(liang)(liang)要(yao)滿足在使(shi)用(yong)(yong)期(qi)間(jian)不致銹損(sun)的(de)(de)要(yao)求。當作為(wei)非(fei)組合(he)樓(lou)(lou)承(cheng)板(ban)(ban)時，鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)層含(han)(han)量(liang)(liang)(liang)可(ke)選(xuan)用(yong)(yong)較(jiao)低(di)值;當為(wei)組合(he)樓(lou)(lou)承(cheng)板(ban)(ban)時，鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)層含(han)(han)量(liang)(liang)(liang)不該小于150g/m2。當為(wei)組合(he)樓(lou)(lou)板(ban)(ban)且使(shi)用(yong)(yong)環(huan)境條(tiao)件(jian)較(jiao)為(wei)惡(e)劣時，鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)層含(han)(han)量(liang)(liang)(liang)應(ying)選(xuan)用(yong)(yong)上限(xian)值或更(geng)高(gao)值。更(geng)高(gao)的(de)(de)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)要(yao)求，如雙面(mian)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)量(liang)(liang)(liang)為(wei)300g/m2、350g/m2或鍍(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(5%鋁)275g/m2、300g/m2等(deng)，較(jiao)高(gao)的(de)(de)鍍(du)(du)(du)層量(liang)(liang)(liang)使(shi)組合(he)樓(lou)(lou)板(ban)(ban)有更(geng)長耐久性，同等(deng)量(liang)(liang)(liang)的(de)(de)鍍(du)(du)(du)鋁鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)防銹蝕才能大約兩(liang)倍(bei)于一般熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)。鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)量(liang)(liang)(liang)也不是越厚越好(hao)，當鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)量(liang)(liang)(liang)較(jiao)厚時，抗剪連接件(jian)栓(shuan)釘的(de)(de)焊(han)接質量(liang)(liang)(liang)就(jiu)很難保證，焊(han)接時，宜選(xuan)用(yong)(yong)局部(bu)除鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)處(chu)理(li)措(cuo)施(shi)。

C型鋼批發鍍鋅鋼板是為防止鋼板表面遭受腐蝕，延長其使用壽命，在鋼板表面涂以一層金屬鋅，這種涂鋅的薄鋼板稱為鍍鋅板。酒鋼C型鋼批發按生(sheng)產及加(jia)(jia)工(gong)(gong)方法(fa)可分為以下幾(ji)類(lei)：熱(re)浸(jin)(jin)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)。將薄(bo)鋼(gang)板(ban)浸(jin)(jin)入熔 微商(shang)貨源解的(de)鋅(xin)(xin)(xin)(xin)槽(cao)中，使(shi)其(qi)表面(mian)粘附一層(ceng)鋅(xin)(xin)(xin)(xin)的(de)薄(bo)鋼(gang)板(ban)。目前主要采用(yong)連續鍍(du)(du)鋅(xin)(xin)(xin)(xin)工(gong)(gong)藝(yi)生(sheng)產，即(ji)把成(cheng)卷的(de)鋼(gang)板(ban)連續浸(jin)(jin)在(zai)熔解有(you)鋅(xin)(xin)(xin)(xin)的(de)鍍(du)(du)槽(cao)中制成(cheng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)；合金化鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)。這(zhe)種(zhong)鋼(gang)板(ban)也(ye)是用(yong)熱(re)浸(jin)(jin)法(fa)制造，但在(zai)出槽(cao)后(hou)，立即(ji)把它加(jia)(jia)熱(re)到５００℃左(zuo)右，使(shi)其(qi)生(sheng)成(cheng)鋅(xin)(xin)(xin)(xin)和鐵的(de)合金被膜。這(zhe)種(zhong)鍍(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)具有(you)良好的(de)涂料的(de)密著性(xing)和焊接性(xing)。