鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)(ban)(ban)按用(yong)(yong)途又可分為(wei)一般用(yong)(yong)、屋(wu)頂用(yong)(yong)、建(jian)筑(zhu)(zhu)外側(ce)板(ban)(ban)(ban)(ban)用(yong)(yong)、結構用(yong)(yong)、瓦壟板(ban)(ban)(ban)(ban)用(yong)(yong)、拉伸(shen)用(yong)(yong)和深沖(chong)用(yong)(yong)等鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)(ban)(ban)。熱鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)主(zhu)要應用(yong)(yong)于(yu)建(jian)筑(zhu)(zhu)外用(yong)(yong)，建(jian)筑(zhu)(zhu)內(nei)用(yong)(yong)，民用(yong)(yong)，門(men)窗，家(jia)具，機械(xie)，電子及(ji)家(jia)用(yong)(yong)電器(qi)等領域。也有(you)機箱用(yong)(yong)這(zhe)個，不過熱鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)不放輻射的。空調，冰箱，微(wei)波爐及(ji)其類似家(jia)電背面(mian)的那(nei)個板(ban)(ban)(ban)(ban)就是熱鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)。鍍(du)(du)(du)鋅(xin)(xin)(xin)層(ceng)通過鈍化處理(li)，可減少潮(chao)溫貯運條件下產(chan)生折銹蝕(白銹) 。但這(zhe)種化學處理(li)的防腐蝕性(xing)能是有(you)限的，而且，妨(fang)礙(ai)大多數涂料的附著性(xing)。這(zhe)種處理(li)一般不用(yong)(yong)在鋅(xin)(xin)(xin)鐵合(he)金鍍(du)(du)(du)層(ceng)，除(chu)光(guang)整(zheng)表面(mian)外，作(zuo)為(wei)常規(gui)，生產(chan)廠對其他類型的鍍(du)(du)(du)鋅(xin)(xin)(xin)層(ceng)均進(jin)行鈍化處理(li)。

重慶樓(lou)承(cheng)板(ban)(ban)(ban)的(de)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)量沒有(you)一個具體的(de)標準，制作壓型(xing)鋼(gang)(gang)(gang)板(ban)(ban)(ban)的(de)冷軋鋼(gang)(gang)(gang)卷(juan)須(xu)連續(xu)熱浸(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)（或鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)），鍍(du)(du)(du)(du)（鋁）鋅(xin)(xin)(xin)量視(shi)設計要(yao)求而定(ding)。樓(lou)承(cheng)板(ban)(ban)(ban)用(yong)壓型(xing)鋼(gang)(gang)(gang)板(ban)(ban)(ban)宜選擇(ze)熱浸(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)。不(bu)允許使用(yong)電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)，電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)僅(jin)在(zai)基材表面(mian)形成保護層，防(fang)(fang)腐(fu)能力有(you)限(xian)。目(mu)前市場上有(you)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)（鍍(du)(du)(du)(du)層含鋁5%或55%），在(zai)酸性(xing)環境(jing)下的(de)防(fang)(fang)腐(fu)效果由(you)于(yu)熱浸(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)，但在(zai)混(hun)(hun)凝土(tu)的(de)堿性(xing)條件下，鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)的(de)防(fang)(fang)腐(fu)蝕性(xing)能低(di)于(yu)熱浸(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)，且鋁會和(he)混(hun)(hun)凝土(tu)發生反(fan)應，并降低(di)混(hun)(hun)凝土(tu)與鋼(gang)(gang)(gang)板(ban)(ban)(ban)的(de)粘結性(xing)能。因此參考國(guo)外(wai)規(gui)范，及國(guo)內外(wai)工(gong)程，行家壓型(xing)鋼(gang)(gang)(gang)板(ban)(ban)(ban)不(bu)建議使用(yong)鍍(du)(du)(du)(du)鋁鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(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。商洛鍍鋅管電鍍(du)(du)鋅(xin)板的鍍(du)(du)鋅(xin)層可(ke)以(yi)很(hen)薄，較小(xiao)達15g／m2，但要求鍍(du)(du)層較厚(hou)的話(hua)則(ze)生產線速度很(hen)慢(man)，不適應現(xian)代化機組的工(gong)藝特點，一般(ban)(ban)(ban)較大(da)為lO0g／m2左(zuo)右(you)。正(zheng)因(yin)為如此，電鍍(du)(du)鋅(xin)板的生產受到很(hen)大(da)的限(xian)制。工(gong)一般(ban)(ban)(ban)電鍍(du)(du)鋅(xin)比較多，適用(yong)(yong)于小(xiao)部(bu)件(jian)；熱鍍(du)(du)鋅(xin)一般(ban)(ban)(ban)用(yong)(yong)于電力設備和(he)構件(jian)，適用(yong)(yong)于大(da)的部(bu)件(jian)和(he)設備。當然他們(men)的價格(ge)也(ye)相對(dui)便宜一些。建設部(bu)已(yi)正(zheng)式(shi)下文，淘汰技術落后的冷鍍(du)(du)鋅(xin)管(guan)(guan)，不準用(yong)(yong)冷鍍(du)(du)鋅(xin)管(guan)(guan)作水、煤氣管(guan)(guan)。

重(zhong)慶(qing)鍍鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)按生產及加(jia)工方法可分(fen)為(wei)以下幾類(lei)： 熱浸鍍鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)。將(jiang)薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)浸入熔(rong)解的(de)鋅(xin)(xin)(xin)(xin)(xin)槽中(zhong)，使其(qi)表面粘附一層(ceng)鋅(xin)(xin)(xin)(xin)(xin)的(de)薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)。目(mu)前主要采(cai)用連續鍍鋅(xin)(xin)(xin)(xin)(xin)工藝生產，即把成卷的(de)鋼(gang)(gang)(gang)板(ban)(ban)連續浸在熔(rong)解有鋅(xin)(xin)(xin)(xin)(xin)的(de)鍍槽中(zhong)制成鍍鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)； 合金(jin)化(hua)鍍鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)。為(wei)克服單面未涂(tu)鋅(xin)(xin)(xin)(xin)(xin)的(de)缺點(dian)，又有一種在另(ling)面涂(tu)以薄(bo)層(ceng)鋅(xin)(xin)(xin)(xin)(xin)的(de)鍍鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)，即雙面差鍍鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)；合金(jin)、復(fu)(fu)合鍍鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)。它是(shi)用鋅(xin)(xin)(xin)(xin)(xin)和其(qi)他(ta)金(jin)屬如鉛、鋅(xin)(xin)(xin)(xin)(xin)制成合金(jin)乃至復(fu)(fu)合鍍成的(de)鋼(gang)(gang)(gang)板(ban)(ban)。這種鋼(gang)(gang)(gang)板(ban)(ban)既具有防銹性能，又有良好(hao)的(de)涂(tu)裝性能。

鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)帶(dai)鋼(gang)(gang)(gang)(gang)的(de)(de)鋅(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)特性 電鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)是(shi)不能形成鋅(xin)(xin)(xin)(xin)(xin)(xin)花的(de)(de)，熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)則(ze)有鋅(xin)(xin)(xin)(xin)(xin)(xin)花，其(qi)形成過程如下：當鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)帶(dai)從(cong)鋅(xin)(xin)(xin)(xin)(xin)(xin)鍋出來后，經氣(qi)刀(dao)的(de)(de)噴吹，大量(liang)鋅(xin)(xin)(xin)(xin)(xin)(xin)液被吹回鋅(xin)(xin)(xin)(xin)(xin)(xin)鍋，這時帶(dai)鋼(gang)(gang)(gang)(gang)表面還有純鋅(xin)(xin)(xin)(xin)(xin)(xin)層(ceng)，呈液 態(tai)附(fu)在(zai)鋼(gang)(gang)(gang)(gang)板(ban)表面，在(zai)鋼(gang)(gang)(gang)(gang)板(ban)表面形成大量(liang)結晶(jing)(jing)核，隨著鋼(gang)(gang)(gang)(gang)板(ban)上升冷卻，使結晶(jing)(jing)核慢(man)慢(man)長成鋅(xin)(xin)(xin)(xin)(xin)(xin)花。冷卻速(su)度越(yue)(yue)快鋅(xin)(xin)(xin)(xin)(xin)(xin)花越(yue)(yue)小，冷卻速(su)度越(yue)(yue)慢(man)鋅(xin)(xin)(xin)(xin)(xin)(xin)花越(yue)(yue)大。熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)帶(dai)鋼(gang)(gang)(gang)(gang)在(zai)我國(guo)(guo)市場一直是(shi)緊(jin)缺(que)品(pin)種。從(cong)20世紀90年(nian)代(dai)中期以來，每(mei)年(nian)都(dou)要(yao)從(cong)國(guo)(guo)外進口80-100萬t左右。隨著國(guo)(guo)內經濟的(de)(de)發(fa)展，尤(you)其(qi)是(shi)汽車、家電及建筑業的(de)(de)發(fa)展，對(dui)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)帶(dai)鋼(gang)(gang)(gang)(gang)的(de)(de)需求量(liang)也大大增加。

熱鍍鋅卷(juan)板價格行業(ye)統計數據(ju)顯示(shi)，十(shi)一(yi)月國內(nei)粗鋼(gang)日(ri)均產(chan)(chan)量(liang)為兩(liang)百(bai)零(ling)九萬噸(dun)，環比(bi)下(xia)降3.3%，創(chuang)出今年(nian)以來水平，但(dan)是(shi)當前減產(chan)(chan)受到季(ji)節性因素支撐，市場(chang)對數據(ju)有效(xiao)(xiao)性提出質疑。鍍鋅卷(juan)工(gong)業(ye)品(pin)而(er)言，近期陸續公布的重要數據(ju)中性偏(pian)多。但(dan)值得注意的是(shi)，同年(nian)十(shi)一(yi)月熱鍍鋅卷(juan)板價格工(gong)業(ye)增加(jia)值和(he)投資增速(su)放緩(huan)，進一(yi)步印證(zheng)了(le)國內(nei)總(zong)需(xu)求乏力(li)，工(gong)業(ye)復蘇形勢不容樂觀。加(jia)上未來經濟結構調整等(deng)因素，工(gong)業(ye)品(pin)價格反彈高度將(jiang)有限。傳統需(xu)求淡(dan)季(ji)效(xiao)(xiao)應還在持續不斷地發(fa)酵，冬儲效(xiao)(xiao)果(guo)不佳。雖然數據(ju)顯示(shi)供應壓力(li)開始減輕，但(dan)是(shi)目前處于(yu)鋼(gang)鐵需(xu)求淡(dan)季(ji)，市場(chang)成交(jiao)萎縮，下(xia)游采購遲遲未能有效(xiao)(xiao)跟進，市場(chang)信心不足，鍍鋅鋼(gang)板貿易商囤貨現(xian)象也(ye)不明顯。