冷軋板廠家熱鍍鋅卷板價格行業統計數據顯示，十一月國內粗鋼日均產量為兩百零九萬噸，環比下降3.3%，創出今年以來水平，但是當前減產受到季節性因素支撐，市場對數據有效性提出質疑。樂山冷軋板鍍鋅(xin)卷(juan)工業(ye)(ye)(ye)品(pin)而言，近期陸續公(gong)布的(de)重要數據(ju)中性偏(pian)多。但值(zhi)得(de)注意的(de)是(shi)，同年十一(yi)月熱鍍鋅(xin)卷(juan)板價(jia)格工業(ye)(ye)(ye)增(zeng)加值(zhi)和投資增(zeng)速(su)放緩，進(jin)一(yi)步印(yin)證了國內總需(xu)(xu)求乏(fa)力(li)，工業(ye)(ye)(ye)復蘇形勢不容(rong)樂(le)觀。加上未來經濟結構調整等因(yin)素，工業(ye)(ye)(ye)品(pin)價(jia)格反(fan)彈(dan)高度(du)將有限。傳(chuan)統(tong)需(xu)(xu)求淡(dan)季(ji)效應(ying)還在持續不斷地發酵，冬儲效果(guo)不佳。雖(sui)然(ran)數據(ju)顯(xian)示供應(ying)壓力(li)開始減輕，但是(shi)目(mu)前處于(yu)鋼鐵需(xu)(xu)求淡(dan)季(ji)，市場成交萎縮，下(xia)游(you)采購遲遲未能有效跟進(jin)，市場信心不足，鍍鋅(xin)鋼板貿易商(shang)囤貨現象(xiang)也不明(ming)顯(xian)。

熱(re)(re)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)和(he)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)在鍍(du)(du)鋅(xin)(xin)(xin)量上有很大的差別，就像(xiang)山東(dong)彩(cai)涂卷）。熱(re)(re)鍍(du)(du)鋅(xin)(xin)(xin)的鍍(du)(du)鋅(xin)(xin)(xin)量不(bu)可(ke)能太小(xiao)(xiao)，一(yi)般(ban)(ban)較小(xiao)(xiao)為雙面(mian)50～60g／m2，較大可(ke)達600g／m2。電(dian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)的鍍(du)(du)鋅(xin)(xin)(xin)層(ceng)(ceng)可(ke)以很薄，較小(xiao)(xiao)達15g／m2，但(dan)要求鍍(du)(du)層(ceng)(ceng)較厚的話(hua)則生產線速度很慢，不(bu)適應現代化(hua)機(ji)組的工藝特點，一(yi)般(ban)(ban)較大為lO0g／m2左右。正因為如此，電(dian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)的生產受到很大的限制(zhi)。工一(yi)般(ban)(ban)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)比較多(duo)，適用(yong)(yong)于小(xiao)(xiao)部件；熱(re)(re)鍍(du)(du)鋅(xin)(xin)(xin)一(yi)般(ban)(ban)用(yong)(yong)于電(dian)力設(she)備(bei)(bei)和(he)構(gou)件，適用(yong)(yong)于大的部件和(he)設(she)備(bei)(bei)。當然他們的價(jia)格也相對便宜(yi)一(yi)些。建(jian)設(she)部已正式下文，淘汰(tai)技術落后(hou)的冷鍍(du)(du)鋅(xin)(xin)(xin)管，不(bu)準用(yong)(yong)冷鍍(du)(du)鋅(xin)(xin)(xin)管作水、煤氣管。

重慶樓承(cheng)板(ban)(ban)的(de)(de)鍍(du)(du)(du)鋅(xin)量沒有(you)一個具(ju)體的(de)(de)標準，制作(zuo)壓(ya)型(xing)鋼(gang)(gang)板(ban)(ban)的(de)(de)冷軋鋼(gang)(gang)卷須連續熱浸鍍(du)(du)(du)鋅(xin)（或(huo)鍍(du)(du)(du)鋁鋅(xin)），鍍(du)(du)(du)（鋁）鋅(xin)量視設(she)計要(yao)求(qiu)而定。樓承(cheng)板(ban)(ban)用壓(ya)型(xing)鋼(gang)(gang)板(ban)(ban)宜選擇熱浸鍍(du)(du)(du)鋅(xin)鋼(gang)(gang)板(ban)(ban)。不允許使用電(dian)鍍(du)(du)(du)鋅(xin)鋼(gang)(gang)板(ban)(ban)，電(dian)鍍(du)(du)(du)鋅(xin)鋼(gang)(gang)板(ban)(ban)僅在基材(cai)表面(mian)形成保護層，防(fang)(fang)腐(fu)能力有(you)限。目前市場上有(you)鍍(du)(du)(du)鋅(xin)鋼(gang)(gang)板(ban)(ban)（鍍(du)(du)(du)層含(han)鋁5%或(huo)55%），在酸性環(huan)境下的(de)(de)防(fang)(fang)腐(fu)效果由于熱浸鍍(du)(du)(du)鋅(xin)鋼(gang)(gang)板(ban)(ban)，但在混(hun)凝土的(de)(de)堿性條件下，鍍(du)(du)(du)鋁鋅(xin)的(de)(de)防(fang)(fang)腐(fu)蝕性能低于熱浸鍍(du)(du)(du)鋅(xin)鋼(gang)(gang)板(ban)(ban)，且(qie)鋁會和混(hun)凝土發生反應，并降(jiang)低混(hun)凝土與鋼(gang)(gang)板(ban)(ban)的(de)(de)粘結性能。因此(ci)參考國外(wai)規范，及(ji)國內外(wai)工(gong)程，行家壓(ya)型(xing)鋼(gang)(gang)板(ban)(ban)不建議使用鍍(du)(du)(du)鋁鋅(xin)鋼(gang)(gang)板(ban)(ban)。

鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼板的表面鍍(du)(du)鋅(xin)(xin)(xin)(xin)主(zhu)要采(cai)用(yong)的方(fang)法是(shi)(shi)熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)。熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)是(shi)(shi)由較古老的熱(re)鍍(du)(du)方(fang)法發(fa)展而來(lai)的，自從1836年(nian)法國(guo)把熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)應用(yong)于(yu)(yu)工業(ye)以(yi)來(lai)，已(yi)經有(you)一(yi)百七十年(nian)的歷史了(le)。然(ran)而，熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)工業(ye)是(shi)(shi)近(jin)三十年(nian)來(lai)伴隨冷軋帶鋼的飛速(su)發(fa)展而得(de)到(dao)了(le)大規模發(fa)展。鍍(du)(du)鋅(xin)(xin)(xin)(xin)溶液(ye)(ye)(ye)有(you)氰(qing)(qing)(qing)化(hua)物鍍(du)(du)液(ye)(ye)(ye)和(he)無(wu)(wu)氰(qing)(qing)(qing)鍍(du)(du)液(ye)(ye)(ye)兩(liang)類。氰(qing)(qing)(qing)化(hua)物鍍(du)(du)液(ye)(ye)(ye)中分(fen)微氰(qing)(qing)(qing)、低氰(qing)(qing)(qing)、中氰(qing)(qing)(qing)、和(he)高氰(qing)(qing)(qing)幾類。無(wu)(wu)氰(qing)(qing)(qing)鍍(du)(du)液(ye)(ye)(ye)有(you)堿性(xing)鋅(xin)(xin)(xin)(xin)酸鹽鍍(du)(du)液(ye)(ye)(ye)、銨(an)鹽鍍(du)(du)液(ye)(ye)(ye)、硫酸鹽鍍(du)(du)液(ye)(ye)(ye)及無(wu)(wu)氨氯化(hua)物鍍(du)(du)液(ye)(ye)(ye)等。氰(qing)(qing)(qing)化(hua)鍍(du)(du)鋅(xin)(xin)(xin)(xin)溶液(ye)(ye)(ye)均鍍(du)(du)能力好，得(de)到(dao)的鍍(du)(du)層光滑細致(zhi)，在生產中被長期采(cai)用(yong)。但由于(yu)(yu)氰(qing)(qing)(qing)化(hua)物劇(ju)毒，對(dui)環境污染(ran)嚴重，近(jin)年(nian)來(lai)已(yi)趨向于(yu)(yu)采(cai)用(yong)低氰(qing)(qing)(qing)、微氰(qing)(qing)(qing)、無(wu)(wu)氰(qing)(qing)(qing)鍍(du)(du)鋅(xin)(xin)(xin)(xin)溶液(ye)(ye)(ye)。