璧山鍍鋅重慶鍍鋅卷主要有：脫落、劃傷、鈍化斑、鋅粒、厚邊、氣刀條痕、氣刀刮痕、露鋼、夾雜、機械損傷、鋼基性能不良、浪邊、瓢曲、尺寸不合、壓印、鋅層厚度不合、輥印等。鍍鋅價格鋅(xin)層(ceng)脫落(luo)的(de)(de)主要(yao)原因(yin)有(you)(you)：表(biao)面氧(yang)化(hua)、有(you)(you)硅化(hua)合物、冷(leng)扎乳(ru)化(hua)液太臟、NOF段氧(yang)化(hua)氣(qi)氛(fen)及保護氣(qi)體露(lu)點(dian)(dian)太高、空燃(ran)比不(bu)合理(li)、氫氣(qi)流量(liang)(liang)(liang)偏(pian)低(di)、爐子(zi)有(you)(you)氧(yang)滲入，帶(dai)鋼(gang)入鍋(guo)溫度偏(pian)低(di)，RWP段爐壓偏(pian)低(di)及爐門吸風、NOF段爐溫偏(pian)低(di)，油脂蒸(zheng)發不(bu)盡、鋅(xin)鍋(guo)鋁含量(liang)(liang)(liang)偏(pian)低(di)、機組速度太快、還原不(bu)充分、鋅(xin)液中停(ting)留時間太短、鍍(du)(du)層(ceng)偏(pian)厚。白銹和黑斑(ban)產(chan)生(sheng)的(de)(de)原因(yin)有(you)(you)：黑斑(ban)是白銹進一步氧(yang)化(hua)形成的(de)(de)鍍(du)(du)鋅(xin)板的(de)(de)特點(dian)(dian)與(yu)用途。鍍(du)(du)鋅(xin)卷板是以熱(re)軋鋼(gang)帶(dai)或冷(leng)軋鋼(gang)帶(dai)為基板，經(jing)過(guo)連續熱(re)浸鍍(du)(du)鋅(xin)工(gong)(gong)藝(yi)而生(sheng)產(chan)出來的(de)(de)， 產(chan)品具有(you)(you)耐腐(fu)蝕(shi)強、 表(biao)面質(zhi)量(liang)(liang)(liang)好、有(you)(you)利于深加工(gong)(gong)、經(jing)濟實用等特點(dian)(dian)。

樓(lou)承板(ban)本身有(you)良好的(de)(de)(de)延伸性(xing)(xing)，自重(zhong)輕(qing)，自振周(zhou)(zhou)期(qi)長(chang)，較大變(bian)(bian)形下能(neng)(neng)(neng)(neng)吸收變(bian)(bian)形能(neng)(neng)(neng)(neng)，結(jie)(jie)構體(ti)系(xi)(xi)的(de)(de)(de)連接(jie)多為柔性(xing)(xing)連接(jie)，圍護結(jie)(jie)構可隨主體(ti)結(jie)(jie)構發生變(bian)(bian)位，其抗(kang)震(zhen)性(xing)(xing)能(neng)(neng)(neng)(neng)得到了(le)(le)大大提高。自重(zhong)減(jian)輕(qing)也(ye)會(hui)(hui)增(zeng)強其抗(kang)震(zhen)性(xing)(xing)能(neng)(neng)(neng)(neng)，自重(zhong)減(jian)少(shao)一半，等同于(yu)降(jiang)低抗(kang)震(zhen)設防烈度(du)一度(du)，地震(zhen)作用可降(jiang)低30％—40％J，從而減(jian)少(shao)了(le)(le)很多有(you)關抗(kang)震(zhen)的(de)(de)(de)構造(zao)要(yao)求，降(jiang)低了(le)(le)工程造(zao)價。我國面(mian)臨水土流失(shi)、環境污染等一系(xi)(xi)列影響可持續發展的(de)(de)(de)問題，環保建(jian)(jian)筑(zhu)(zhu)(zhu)的(de)(de)(de)提出應運而生，環保建(jian)(jian)筑(zhu)(zhu)(zhu)之能(neng)(neng)(neng)(neng)源(yuan)利(li)(li)用高、環境好、在保障人(ren)們生活(huo)的(de)(de)(de)基礎上消耗低，使用周(zhou)(zhou)期(qi)長(chang)等。樓(lou)承板(ban)建(jian)(jian)筑(zhu)(zhu)(zhu)恰(qia)恰(qia)在這些方(fang)面(mian)能(neng)(neng)(neng)(neng)夠滿足(zu)要(yao)求，與其他建(jian)(jian)筑(zhu)(zhu)(zhu)結(jie)(jie)構體(ti)系(xi)(xi)相比(bi)，樓(lou)承板(ban)建(jian)(jian)筑(zhu)(zhu)(zhu)沒有(you)空氣污染和噪音，也(ye)不(bu)會(hui)(hui)對森林(lin)等資源(yuan)造(zao)成(cheng)破壞，并且建(jian)(jian)筑(zhu)(zhu)(zhu)材(cai)料可以回收再利(li)(li)用，減(jian)少(shao)了(le)(le)固(gu)體(ti)垃(la)圾的(de)(de)(de)出現，有(you)利(li)(li)于(yu)人(ren)與自然的(de)(de)(de)協調發展，代表著建(jian)(jian)筑(zhu)(zhu)(zhu)行業的(de)(de)(de)新水平。

樓(lou)(lou)承板(ban)(ban)(ban)鍍(du)(du)(du)(du)(du)鋅首要(yao)起到防(fang)腐的效果，按標(biao)準(zhun)組(zu)合(he)樓(lou)(lou)板(ban)(ban)(ban)與非組(zu)合(he)樓(lou)(lou)板(ban)(ban)(ban)壓型鋼板(ban)(ban)(ban)應(ying)選(xuan)(xuan)用(yong)熱鍍(du)(du)(du)(du)(du)鋅，不(bu)(bu)該選(xuan)(xuan)用(yong)電(dian)鍍(du)(du)(du)(du)(du)鋅鋼板(ban)(ban)(ban)，其雙面(mian)鍍(du)(du)(du)(du)(du)鋅層(ceng)總含(han)(han)量(liang)(liang)(liang)要(yao)滿足(zu)在使用(yong)期間不(bu)(bu)致銹(xiu)損(sun)的要(yao)求。當(dang)作為非組(zu)合(he)樓(lou)(lou)承板(ban)(ban)(ban)時(shi)，鍍(du)(du)(du)(du)(du)鋅層(ceng)含(han)(han)量(liang)(liang)(liang)可選(xuan)(xuan)用(yong)較低值;當(dang)為組(zu)合(he)樓(lou)(lou)承板(ban)(ban)(ban)時(shi)，鍍(du)(du)(du)(du)(du)鋅層(ceng)含(han)(han)量(liang)(liang)(liang)不(bu)(bu)該小于150g/m2。當(dang)為組(zu)合(he)樓(lou)(lou)板(ban)(ban)(ban)且使用(yong)環境條件(jian)較為惡劣時(shi)，鍍(du)(du)(du)(du)(du)鋅層(ceng)含(han)(han)量(liang)(liang)(liang)應(ying)選(xuan)(xuan)用(yong)上(shang)限值或(huo)更高值。更高的鍍(du)(du)(du)(du)(du)鋅要(yao)求，如雙面(mian)鍍(du)(du)(du)(du)(du)鋅量(liang)(liang)(liang)為300g/m2、350g/m2或(huo)鍍(du)(du)(du)(du)(du)鋁鋅(5%鋁)275g/m2、300g/m2等(deng)，較高的鍍(du)(du)(du)(du)(du)層(ceng)量(liang)(liang)(liang)使組(zu)合(he)樓(lou)(lou)板(ban)(ban)(ban)有更長耐久性，同等(deng)量(liang)(liang)(liang)的鍍(du)(du)(du)(du)(du)鋁鋅的防(fang)銹(xiu)蝕才能大約兩(liang)倍于一般熱鍍(du)(du)(du)(du)(du)鋅。鍍(du)(du)(du)(du)(du)鋅量(liang)(liang)(liang)也不(bu)(bu)是越厚越好，當(dang)鍍(du)(du)(du)(du)(du)鋅量(liang)(liang)(liang)較厚時(shi)，抗剪連接(jie)件(jian)栓釘的焊接(jie)質(zhi)量(liang)(liang)(liang)就很難(nan)保證，焊接(jie)時(shi)，宜(yi)選(xuan)(xuan)用(yong)局部除(chu)鋅處(chu)理措施。

鍍(du)鋅(xin)(xin)鋼板(ban)按用(yong)(yong)途(tu)又可(ke)分(fen)為(wei)一(yi)(yi)般(ban)用(yong)(yong)、屋頂用(yong)(yong)、建(jian)(jian)筑(zhu)外側板(ban)用(yong)(yong)、結構用(yong)(yong)、瓦壟板(ban)用(yong)(yong)、拉伸用(yong)(yong)和(he)深(shen)沖(chong)用(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)于(yu)建(jian)(jian)筑(zhu)外用(yong)(yong)，建(jian)(jian)筑(zhu)內用(yong)(yong)，民用(yong)(yong)，門窗，家具，機械，電子及家用(yong)(yong)電器(qi)等領域(yu)。也有(you)機箱用(yong)(yong)這(zhe)個(ge)，不(bu)過熱鍍(du)鋅(xin)(xin)板(ban)不(bu)放(fang)輻射的(de)。空調(diao)，冰箱，微波爐及其(qi)類(lei)似(si)家電背面的(de)那個(ge)板(ban)就是熱鍍(du)鋅(xin)(xin)板(ban)。鍍(du)鋅(xin)(xin)層通(tong)過鈍化(hua)處理(li)，可(ke)減少潮溫(wen)貯運(yun)條件(jian)下(xia)產生折(zhe)銹(xiu)(xiu)蝕(白銹(xiu)(xiu)) 。但這(zhe)種化(hua)學處理(li)的(de)防腐蝕性能是有(you)限的(de)，而且(qie)，妨礙大多數(shu)涂料的(de)附著性。這(zhe)種處理(li)一(yi)(yi)般(ban)不(bu)用(yong)(yong)在(zai)鋅(xin)(xin)鐵(tie)合金鍍(du)層，除(chu)光(guang)整表面外，作為(wei)常規(gui)，生產廠對(dui)其(qi)他類(lei)型的(de)鍍(du)鋅(xin)(xin)層均(jun)進行鈍化(hua)處理(li)。