鍍(du)鋅(xin)(xin)鋼板(ban)按用(yong)(yong)(yong)(yong)(yong)(yong)途又可(ke)分(fen)為一般用(yong)(yong)(yong)(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)(yong)(yong)(yong)、建筑(zhu)外側板(ban)用(yong)(yong)(yong)(yong)(yong)(yong)、結構用(yong)(yong)(yong)(yong)(yong)(yong)、瓦壟板(ban)用(yong)(yong)(yong)(yong)(yong)(yong)、拉伸(shen)用(yong)(yong)(yong)(yong)(yong)(yong)和深沖(chong)用(yong)(yong)(yong)(yong)(yong)(yong)等鍍(du)鋅(xin)(xin)鋼板(ban)。熱鍍(du)鋅(xin)(xin)板(ban)主(zhu)要應用(yong)(yong)(yong)(yong)(yong)(yong)于建筑(zhu)外用(yong)(yong)(yong)(yong)(yong)(yong)，建筑(zhu)內用(yong)(yong)(yong)(yong)(yong)(yong)，民用(yong)(yong)(yong)(yong)(yong)(yong)，門窗，家(jia)具，機械，電子(zi)及(ji)家(jia)用(yong)(yong)(yong)(yong)(yong)(yong)電器(qi)等領域。也(ye)有(you)機箱用(yong)(yong)(yong)(yong)(yong)(yong)這個，不過熱鍍(du)鋅(xin)(xin)板(ban)不放輻(fu)射的。空(kong)調，冰箱，微波爐(lu)及(ji)其類似(si)家(jia)電背(bei)面的那個板(ban)就是(shi)熱鍍(du)鋅(xin)(xin)板(ban)。鍍(du)鋅(xin)(xin)層通過鈍(dun)化處(chu)理，可(ke)減少潮溫貯(zhu)運條件下產生折銹蝕(白銹) 。但這種化學處(chu)理的防腐蝕性(xing)能是(shi)有(you)限的，而且，妨(fang)礙(ai)大(da)多(duo)數(shu)涂料的附(fu)著性(xing)。這種處(chu)理一般不用(yong)(yong)(yong)(yong)(yong)(yong)在鋅(xin)(xin)鐵合金鍍(du)層，除光(guang)整表面外，作(zuo)為常規，生產廠(chang)對其他(ta)類型的鍍(du)鋅(xin)(xin)層均進(jin)行鈍(dun)化處(chu)理。

重(zhong)慶(qing)樓承板(ban)的(de)(de)鍍(du)鋅(xin)量沒有一個(ge)具體的(de)(de)標準(zhun)，制作壓型鋼(gang)(gang)板(ban)的(de)(de)冷軋鋼(gang)(gang)卷(juan)須連(lian)續熱浸鍍(du)鋅(xin)（或(huo)鍍(du)鋁(lv)鋅(xin)），鍍(du)（鋁(lv)）鋅(xin)量視設計(ji)要(yao)求而定。樓承板(ban)用(yong)壓型鋼(gang)(gang)板(ban)宜選(xuan)擇熱浸鍍(du)鋅(xin)鋼(gang)(gang)板(ban)。不(bu)允(yun)許(xu)使用(yong)電(dian)鍍(du)鋅(xin)鋼(gang)(gang)板(ban)，電(dian)鍍(du)鋅(xin)鋼(gang)(gang)板(ban)僅(jin)在基材表(biao)面(mian)形成保護(hu)層(ceng)，防(fang)(fang)腐(fu)能力有限。目前(qian)市場上有鍍(du)鋅(xin)鋼(gang)(gang)板(ban)（鍍(du)層(ceng)含鋁(lv)5%或(huo)55%），在酸性(xing)環境下的(de)(de)防(fang)(fang)腐(fu)效果由于熱浸鍍(du)鋅(xin)鋼(gang)(gang)板(ban)，但在混凝(ning)土的(de)(de)堿(jian)性(xing)條(tiao)件(jian)下，鍍(du)鋁(lv)鋅(xin)的(de)(de)防(fang)(fang)腐(fu)蝕性(xing)能低(di)(di)于熱浸鍍(du)鋅(xin)鋼(gang)(gang)板(ban)，且鋁(lv)會和混凝(ning)土發生反應(ying)，并降低(di)(di)混凝(ning)土與鋼(gang)(gang)板(ban)的(de)(de)粘(zhan)結性(xing)能。因此參考(kao)國(guo)外規范，及國(guo)內外工程(cheng)，行家壓型鋼(gang)(gang)板(ban)不(bu)建議使用(yong)鍍(du)鋁(lv)鋅(xin)鋼(gang)(gang)板(ban)。

鍍鋅管廠家熱鍍鋅板和電鍍鋅板在鍍鋅量上有很大的差別，就像山東彩涂卷）。熱鍍鋅的鍍鋅量不可能太小，一般較小為雙面50～60g／m2，較大可達600g／m2。商洛鍍鋅管電(dian)(dian)鍍(du)鋅(xin)(xin)(xin)(xin)板的(de)鍍(du)鋅(xin)(xin)(xin)(xin)層可以(yi)很薄，較小(xiao)達(da)15g／m2，但要求鍍(du)層較厚(hou)的(de)話則生產(chan)線速度(du)很慢，不適(shi)應現代化機組的(de)工藝特點，一(yi)般(ban)較大(da)(da)為lO0g／m2左右。正(zheng)因為如此，電(dian)(dian)鍍(du)鋅(xin)(xin)(xin)(xin)板的(de)生產(chan)受到很大(da)(da)的(de)限制。工一(yi)般(ban)電(dian)(dian)鍍(du)鋅(xin)(xin)(xin)(xin)比較多(duo)，適(shi)用于小(xiao)部件；熱鍍(du)鋅(xin)(xin)(xin)(xin)一(yi)般(ban)用于電(dian)(dian)力設(she)備和(he)構件，適(shi)用于大(da)(da)的(de)部件和(he)設(she)備。當然他們的(de)價格也相(xiang)對(dui)便宜一(yi)些。建設(she)部已(yi)正(zheng)式下文，淘汰技術落后的(de)冷鍍(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)，不準用冷鍍(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)作水、煤氣(qi)管(guan)(guan)。

重慶(qing)鍍(du)鋅板(ban)(ban)(ban)(ban)(ban)按生產(chan)及加工(gong)方法可分為(wei)以下(xia)幾(ji)類： 熱(re)浸鍍(du)鋅鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。將薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)浸入熔(rong)解(jie)的(de)鋅槽中，使(shi)其表面粘附(fu)一(yi)層鋅的(de)薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。目(mu)前主要采用連續(xu)鍍(du)鋅工(gong)藝生產(chan)，即把成卷的(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)連續(xu)浸在熔(rong)解(jie)有(you)鋅的(de)鍍(du)槽中制成鍍(du)鋅鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)； 合金化鍍(du)鋅鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。為(wei)克服單面未涂(tu)(tu)鋅的(de)缺點，又有(you)一(yi)種在另面涂(tu)(tu)以薄(bo)層鋅的(de)鍍(du)鋅板(ban)(ban)(ban)(ban)(ban)，即雙面差(cha)鍍(du)鋅板(ban)(ban)(ban)(ban)(ban)；合金、復合鍍(du)鋅鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。它(ta)是(shi)用鋅和(he)其他金屬如鉛、鋅制成合金乃(nai)至復合鍍(du)成的(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。這種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)既具有(you)防銹性(xing)能(neng)，又有(you)良好的(de)涂(tu)(tu)裝性(xing)能(neng)。

鍍(du)鋅(xin)(xin)(xin)(xin)帶鋼(gang)的(de)鋅(xin)(xin)(xin)(xin)層特性 電(dian)鍍(du)鋅(xin)(xin)(xin)(xin)層是(shi)(shi)不能(neng)形(xing)成(cheng)鋅(xin)(xin)(xin)(xin)花(hua)的(de)，熱(re)鍍(du)鋅(xin)(xin)(xin)(xin)層則有鋅(xin)(xin)(xin)(xin)花(hua)，其(qi)形(xing)成(cheng)過程如下：當(dang)鍍(du)鋅(xin)(xin)(xin)(xin)帶從(cong)鋅(xin)(xin)(xin)(xin)鍋(guo)出(chu)來后，經氣刀的(de)噴(pen)吹，大(da)量(liang)(liang)鋅(xin)(xin)(xin)(xin)液被吹回鋅(xin)(xin)(xin)(xin)鍋(guo)，這時帶鋼(gang)表(biao)(biao)面還有純鋅(xin)(xin)(xin)(xin)層，呈液 態附在(zai)鋼(gang)板表(biao)(biao)面，在(zai)鋼(gang)板表(biao)(biao)面形(xing)成(cheng)大(da)量(liang)(liang)結晶(jing)核，隨著鋼(gang)板上升冷卻，使結晶(jing)核慢(man)(man)慢(man)(man)長成(cheng)鋅(xin)(xin)(xin)(xin)花(hua)。冷卻速度越快鋅(xin)(xin)(xin)(xin)花(hua)越小，冷卻速度越慢(man)(man)鋅(xin)(xin)(xin)(xin)花(hua)越大(da)。熱(re)鍍(du)鋅(xin)(xin)(xin)(xin)帶鋼(gang)在(zai)我國市場一直是(shi)(shi)緊缺品種。從(cong)20世紀(ji)90年(nian)代(dai)中期(qi)以來，每年(nian)都要從(cong)國外進(jin)口(kou)80-100萬t左(zuo)右。隨著國內(nei)經濟的(de)發(fa)展，尤其(qi)是(shi)(shi)汽(qi)車(che)、家電(dian)及建(jian)筑業的(de)發(fa)展，對鍍(du)鋅(xin)(xin)(xin)(xin)帶鋼(gang)的(de)需求量(liang)(liang)也大(da)大(da)增(zeng)加。

熱(re)鍍(du)(du)鋅卷(juan)板價格(ge)行業(ye)統計(ji)數(shu)(shu)據(ju)(ju)顯示，十一月國內粗鋼日均產(chan)量(liang)為兩百零九(jiu)萬(wan)噸(dun)，環比下降(jiang)3.3%，創出今年(nian)以來(lai)水平，但是(shi)當前(qian)減(jian)產(chan)受到季(ji)(ji)節性(xing)因素支撐，市(shi)場對數(shu)(shu)據(ju)(ju)有效性(xing)提出質疑(yi)。鍍(du)(du)鋅卷(juan)工(gong)(gong)業(ye)品而(er)言，近期(qi)陸(lu)續(xu)公布的重(zhong)要數(shu)(shu)據(ju)(ju)中性(xing)偏多。但值得注意(yi)的是(shi)，同(tong)年(nian)十一月熱(re)鍍(du)(du)鋅卷(juan)板價格(ge)工(gong)(gong)業(ye)增加(jia)值和投資增速放緩(huan)，進(jin)一步印證了國內總需(xu)求乏(fa)力，工(gong)(gong)業(ye)復蘇形勢不(bu)容樂觀。加(jia)上未來(lai)經濟結(jie)構(gou)調(diao)整等因素，工(gong)(gong)業(ye)品價格(ge)反彈(dan)高度將有限。傳統需(xu)求淡季(ji)(ji)效應(ying)還在(zai)持續(xu)不(bu)斷(duan)地發酵，冬儲(chu)效果不(bu)佳。雖然數(shu)(shu)據(ju)(ju)顯示供應(ying)壓力開(kai)始減(jian)輕，但是(shi)目(mu)前(qian)處于鋼鐵需(xu)求淡季(ji)(ji)，市(shi)場成交萎縮(suo)，下游(you)采購遲遲未能有效跟進(jin)，市(shi)場信心不(bu)足，鍍(du)(du)鋅鋼板貿易商(shang)囤(dun)貨現象也(ye)不(bu)明顯。