重慶鍍鋅(xin)卷(juan)主要(yao)有(you)(you)：脫落(luo)(luo)、劃傷、鈍化(hua)(hua)斑、鋅(xin)粒、厚(hou)(hou)邊、氣(qi)(qi)刀條痕(hen)、氣(qi)(qi)刀刮(gua)痕(hen)、露(lu)鋼、夾雜、機(ji)械損傷、鋼基(ji)性能不良、浪邊、瓢(piao)曲、尺(chi)寸(cun)不合、壓印(yin)、鋅(xin)層(ceng)(ceng)厚(hou)(hou)度(du)不合、輥印(yin)等。鋅(xin)層(ceng)(ceng)脫落(luo)(luo)的主要(yao)原(yuan)因(yin)有(you)(you)：表面氧化(hua)(hua)、有(you)(you)硅(gui)化(hua)(hua)合物、冷扎乳(ru)化(hua)(hua)液(ye)太(tai)臟、NOF段(duan)氧化(hua)(hua)氣(qi)(qi)氛及保護(hu)氣(qi)(qi)體露(lu)點太(tai)高、空燃比不合理、氫氣(qi)(qi)流量偏(pian)(pian)(pian)低(di)(di)、爐子有(you)(you)氧滲入，帶鋼入鍋(guo)溫度(du)偏(pian)(pian)(pian)低(di)(di)，RWP段(duan)爐壓偏(pian)(pian)(pian)低(di)(di)及爐門吸風、NOF段(duan)爐溫偏(pian)(pian)(pian)低(di)(di)，油脂(zhi)蒸發(fa)不盡、鋅(xin)鍋(guo)鋁(lv)含量偏(pian)(pian)(pian)低(di)(di)、機(ji)組速(su)度(du)太(tai)快、還(huan)原(yuan)不充(chong)分、鋅(xin)液(ye)中(zhong)停留時(shi)間太(tai)短(duan)、鍍層(ceng)(ceng)偏(pian)(pian)(pian)厚(hou)(hou)。白銹和黑(hei)斑產(chan)生的原(yuan)因(yin)有(you)(you)：黑(hei)斑是白銹進一(yi)步氧化(hua)(hua)形成的鍍鋅(xin)板(ban)(ban)的特點與用(yong)途(tu)。鍍鋅(xin)卷(juan)板(ban)(ban)是以熱軋(ya)鋼帶或冷軋(ya)鋼帶為基(ji)板(ban)(ban)，經過連(lian)續熱浸鍍鋅(xin)工(gong)藝而生產(chan)出(chu)來的， 產(chan)品具有(you)(you)耐腐(fu)蝕強、 表面質量好(hao)、有(you)(you)利(li)于深加工(gong)、經濟實用(yong)等特點。

樓(lou)承(cheng)(cheng)板(ban)(ban)鋼結(jie)構柱網間距一(yi)般5~9.0m×8~15m，次梁(liang)間距3m，而樓(lou)承(cheng)(cheng)板(ban)(ban)下料長度為4.97~8.97m，運(yun)輸與安裝均較困難(nan)，尤(you)其是帶(dai)由圓弧區垂直(zhi)吊(diao)裝樓(lou)承(cheng)(cheng)板(ban)(ban)，由上(shang)而下在次梁(liang)狹間穿(chuan)套比較困難(nan)，且打亂了次梁(liang)焊(han)(han)接(jie)正常工(gong)序(xu)。控制下料長度為3～6m，則可避免垂直(zhi)運(yun)輸時(shi)(shi)在次梁(liang)間無法(fa)吊(diao)運(yun)的(de)問題。 樓(lou)承(cheng)(cheng)板(ban)(ban)吊(diao)運(yun)時(shi)(shi)采用(yong)專用(yong)軟(ruan)吊(diao)索(suo)。每次吊(diao)裝時(shi)(shi)應(ying)(ying)檢(jian)查(cha)軟(ruan)吊(diao)索(suo)是否有(you)撕裂、割斷現象。樓(lou)承(cheng)(cheng)板(ban)(ban)擱(ge)置在鋼梁(liang)上(shang)時(shi)(shi)應(ying)(ying)防止探頭。鋪(pu)料時(shi)(shi)操作(zuo)人員應(ying)(ying)系帶(dai)，并保證邊鋪(pu)設邊固定在周邊繩上(shang)。 焊(han)(han)接(jie)采用(yong)熔透(tou)點(dian)焊(han)(han)連接(jie)，施焊(han)(han)前應(ying)(ying)準備邊角料引弧試焊(han)(han)，調整施焊(han)(han)電流.因樓(lou)承(cheng)(cheng)板(ban)(ban)底(di)部(bu)無水平(ping)模板(ban)(ban)及垂直(zhi)支撐(cheng)，澆(jiao)筑混凝(ning)土(tu)時(shi)(shi)布料不宜(yi)太集(ji)中，采用(yong)平(ping)板(ban)(ban)振(zhen)搗(dao)器(qi)及時(shi)(shi)分攤振(zhen)搗(dao)。

鍍鋅(xin)鋼(gang)(gang)板(ban)(ban)(ban)是(shi)為防(fang)止鋼(gang)(gang)板(ban)(ban)(ban)表(biao)面遭受(shou)腐蝕，延(yan)長其(qi)使(shi)用壽命(ming)，在鋼(gang)(gang)板(ban)(ban)(ban)表(biao)面涂(tu)(tu)以一層金(jin)屬(shu)鋅(xin)，這種(zhong)(zhong)涂(tu)(tu)鋅(xin)的(de)(de)薄(bo)鋼(gang)(gang)板(ban)(ban)(ban)稱為鍍鋅(xin)板(ban)(ban)(ban)。鋼(gang)(gang)板(ban)(ban)(ban)也(ye)是(shi)用熱(re)浸法制造(zao)，但在出槽(cao)后，立(li)即(ji)把它(ta)(ta)加熱(re)到500℃左(zuo)右(you)，使(shi)其(qi)生成(cheng)(cheng)鋅(xin)和(he)鐵的(de)(de)合(he)(he)金(jin)被(bei)膜。這種(zhong)(zhong)鍍鋅(xin)卷(juan)具有良(liang)(liang)好的(de)(de)涂(tu)(tu)料的(de)(de)密著性(xing)和(he)焊接性(xing)。合(he)(he)金(jin)化(hua)鍍鋅(xin)鋼(gang)(gang)板(ban)(ban)(ban)。這種(zhong)(zhong)鋼(gang)(gang)板(ban)(ban)(ban)也(ye)是(shi)用熱(re)浸法制造(zao)，但在出槽(cao)后，立(li)即(ji)把它(ta)(ta)加熱(re)到500℃左(zuo)右(you)，使(shi)其(qi)生成(cheng)(cheng)鋅(xin)和(he)鐵的(de)(de)合(he)(he)金(jin)被(bei)膜。這種(zhong)(zhong)鍍鋅(xin)板(ban)(ban)(ban)具有良(liang)(liang)好的(de)(de)涂(tu)(tu)料的(de)(de)密著性(xing)和(he)焊接性(xing)。熱(re)浸鍍鋅(xin)鋼(gang)(gang)板(ban)(ban)(ban)。將薄(bo)鋼(gang)(gang)板(ban)(ban)(ban)浸入熔解的(de)(de)鋅(xin)槽(cao)中，使(shi)其(qi)表(biao)面粘附(fu)一層鋅(xin)的(de)(de)薄(bo)鋼(gang)(gang)板(ban)(ban)(ban)。目前主要采用連續鍍鋅(xin)工藝生產，即(ji)把成(cheng)(cheng)卷(juan)的(de)(de)鋼(gang)(gang)板(ban)(ban)(ban)連續浸在熔解有鋅(xin)的(de)(de)鍍槽(cao)中制成(cheng)(cheng)鍍鋅(xin)鋼(gang)(gang)板(ban)(ban)(ban)。合(he)(he)金(jin)、復(fu)(fu)合(he)(he)鍍鋅(xin)鋼(gang)(gang)板(ban)(ban)(ban)。它(ta)(ta)是(shi)用鋅(xin)和(he)其(qi)他金(jin)屬(shu)如鉛、鋅(xin)制成(cheng)(cheng)合(he)(he)金(jin)乃至(zhi)復(fu)(fu)合(he)(he)鍍成(cheng)(cheng)的(de)(de)鋼(gang)(gang)板(ban)(ban)(ban)。這種(zhong)(zhong)鋼(gang)(gang)板(ban)(ban)(ban)既具有防(fang)銹性(xing)能，又有良(liang)(liang)好的(de)(de)涂(tu)(tu)裝性(xing)能。

鍍鋅角鋼廠家樓承板本身有良好的延伸性，自重輕，自振周期長，較大變形下能吸收變形能，結構體系的連接多為柔性連接，圍護結構可隨主體結構發生變位，其抗震性能得到了大大提高。自重減輕也會增強其抗震性能，自重減少一半，等同于降低抗震設防烈度一度，地震作用可降低30％—40％J，從而減少了很多有關抗震的構造要求，降低了工程造價。我國面臨水土流失、環境污染等一系列影響可持續發展的問題，環保建筑的提出應運而生，環保建筑之能源利用高、環境好、在保障人們生活的基礎上消耗低，使用周期長等。寧夏鍍鋅角鋼樓承板建(jian)筑(zhu)(zhu)恰恰在這些方(fang)面能夠滿足要求，與其他建(jian)筑(zhu)(zhu)結構(gou)體系相比，樓承板建(jian)筑(zhu)(zhu)沒(mei)有空氣污染和噪音，也不會對森林等資源造成破壞，并且建(jian)筑(zhu)(zhu)材(cai)料可以回收再利(li)用，減少了固體垃(la)圾的出現，有利(li)于人與自然的協調發展，代(dai)表著(zhu)建(jian)筑(zhu)(zhu)行業的新水平(ping)。

堆(dui)積(ji)樓(lou)(lou)承(cheng)(cheng)(cheng)板(ban)的地坪應基(ji)本平坦(tan)，鋼(gang)筋(jin)桁(heng)架樓(lou)(lou)承(cheng)(cheng)(cheng)板(ban)堆(dui)積(ji)不(bu)(bu)宜過(guo)高，每堆(dui)不(bu)(bu)超(chao)越60張。樓(lou)(lou)承(cheng)(cheng)(cheng)板(ban)運至(zhi)現場，需妥善保(bao)護，不(bu)(bu)得(de)有(you)任(ren)何損壞和污染(ran)，特別不(bu)(bu)得(de)感染(ran)油污。樓(lou)(lou)承(cheng)(cheng)(cheng)板(ban)應根(gen)據排版圖預(yu)先切開(kai)、編號(hao)。起(qi)吊(diao)前，每捆(kun)要有(you)兩條鋼(gang)絲(si)繩(sheng)，分別捆(kun)于兩頭四分之一鋼(gang)板(ban)長度處，采用(yong)(yong)專用(yong)(yong)吊(diao)具(ju)吊(diao)起(qi)。應先行(xing)試吊(diao)，檢查重心是否穩(wen)定，鋼(gang)索是否會滑(hua)動，待牢靠，無慮時(shi)方可吊(diao)起(qi)。起(qi)吊(diao)時(shi)，應從(cong)下往上(shang)樓(lou)(lou)層(ceng)次(ci)序(xu)吊(diao)料為原則，避(bi)免因(yin)先行(xing)吊(diao)放上(shang)層(ceng)資料后，阻(zu)止下面(mian)樓(lou)(lou)層(ceng)的吊(diao)放作業。整疊樓(lou)(lou)承(cheng)(cheng)(cheng)板(ban)放梁面(mian)時(shi)，應考(kao)慮梁的承(cheng)(cheng)(cheng)載能(neng)力，避(bi)免因(yin)集中載荷(he)過(guo)大，造成梁的變形。樓(lou)(lou)承(cheng)(cheng)(cheng)板(ban)吊(diao)至(zhi)樓(lou)(lou)層(ceng)，暫(zan)時(shi)不(bu)(bu)鋪設時(shi)，應作牢靠固定，避(bi)免飛落和滑(hua)落傷人(ren)。

重慶樓承(cheng)板(ban)(ban)(ban)(ban)的鍍(du)鋅(xin)(xin)(xin)量(liang)沒有(you)一個具體(ti)的標準，制作(zuo)壓型(xing)鋼(gang)板(ban)(ban)(ban)(ban)的冷(leng)軋(ya)鋼(gang)卷須連續(xu)熱(re)浸(jin)(jin)鍍(du)鋅(xin)(xin)(xin)（或鍍(du)鋁鋅(xin)(xin)(xin)），鍍(du)（鋁）鋅(xin)(xin)(xin)量(liang)視設計要求(qiu)而(er)定(ding)。樓承(cheng)板(ban)(ban)(ban)(ban)用壓型(xing)鋼(gang)板(ban)(ban)(ban)(ban)宜選擇熱(re)浸(jin)(jin)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。不允許使(shi)用電鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)，電鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)僅在基材表(biao)面形成(cheng)保護層(ceng)，防腐(fu)(fu)能力(li)有(you)限。目前市場上有(you)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)（鍍(du)層(ceng)含鋁5%或55%），在酸性環境(jing)下(xia)的防腐(fu)(fu)效果由(you)于熱(re)浸(jin)(jin)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)，但在混凝(ning)(ning)土的堿性條件下(xia)，鍍(du)鋁鋅(xin)(xin)(xin)的防腐(fu)(fu)蝕性能低于熱(re)浸(jin)(jin)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)，且鋁會和混凝(ning)(ning)土發生反應，并降低混凝(ning)(ning)土與鋼(gang)板(ban)(ban)(ban)(ban)的粘(zhan)結性能。因(yin)此(ci)參(can)考國外規范，及國內外工(gong)程，行家壓型(xing)鋼(gang)板(ban)(ban)(ban)(ban)不建議使(shi)用鍍(du)鋁鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。