重慶鍍(du)鋅(xin)(xin)卷(juan)主要(yao)有(you)：脫落(luo)、劃(hua)傷、鈍化(hua)(hua)斑、鋅(xin)(xin)粒、厚邊(bian)、氣刀(dao)條痕、氣刀(dao)刮痕、露(lu)鋼(gang)(gang)、夾(jia)雜(za)、機(ji)械損傷、鋼(gang)(gang)基(ji)(ji)性能不(bu)良(liang)、浪邊(bian)、瓢曲、尺(chi)寸不(bu)合、壓(ya)印(yin)、鋅(xin)(xin)層(ceng)厚度不(bu)合、輥(gun)印(yin)等(deng)。鋅(xin)(xin)層(ceng)脫落(luo)的主要(yao)原因有(you)：表面(mian)氧(yang)化(hua)(hua)、有(you)硅化(hua)(hua)合物、冷(leng)扎乳化(hua)(hua)液太(tai)臟、NOF段氧(yang)化(hua)(hua)氣氛及保(bao)護氣體(ti)露(lu)點太(tai)高、空燃(ran)比不(bu)合理、氫氣流量偏(pian)低(di)、爐子(zi)有(you)氧(yang)滲入(ru)，帶鋼(gang)(gang)入(ru)鍋溫(wen)度偏(pian)低(di)，RWP段爐壓(ya)偏(pian)低(di)及爐門吸風、NOF段爐溫(wen)偏(pian)低(di)，油脂蒸(zheng)發不(bu)盡、鋅(xin)(xin)鍋鋁含量偏(pian)低(di)、機(ji)組(zu)速度太(tai)快、還(huan)原不(bu)充分、鋅(xin)(xin)液中停留時(shi)間太(tai)短、鍍(du)層(ceng)偏(pian)厚。白銹和黑斑產(chan)生的原因有(you)：黑斑是(shi)白銹進(jin)一步(bu)氧(yang)化(hua)(hua)形成(cheng)的鍍(du)鋅(xin)(xin)板的特點與用途。鍍(du)鋅(xin)(xin)卷(juan)板是(shi)以熱(re)軋鋼(gang)(gang)帶或冷(leng)軋鋼(gang)(gang)帶為基(ji)(ji)板，經過連續熱(re)浸鍍(du)鋅(xin)(xin)工(gong)藝而生產(chan)出來的， 產(chan)品具有(you)耐(nai)腐(fu)蝕強(qiang)、 表面(mian)質量好、有(you)利于(yu)深加工(gong)、經濟(ji)實(shi)用等(deng)特點。

樓(lou)(lou)承板(ban)鋼結構柱網間距一般5~9.0m×8~15m，次(ci)梁間距3m，而(er)樓(lou)(lou)承板(ban)下(xia)料(liao)長度為4.97~8.97m，運輸與安(an)裝(zhuang)(zhuang)均(jun)較困難，尤其是帶由(you)圓弧區垂(chui)直吊裝(zhuang)(zhuang)樓(lou)(lou)承板(ban)，由(you)上(shang)而(er)下(xia)在次(ci)梁狹(xia)間穿(chuan)套(tao)比較困難，且打亂(luan)了次(ci)梁焊(han)(han)接(jie)(jie)正常工序。控制下(xia)料(liao)長度為3～6m，則可避免垂(chui)直運輸時(shi)(shi)在次(ci)梁間無法吊運的(de)問題(ti)。 樓(lou)(lou)承板(ban)吊運時(shi)(shi)采用(yong)(yong)專用(yong)(yong)軟吊索。每次(ci)吊裝(zhuang)(zhuang)時(shi)(shi)應檢查軟吊索是否有(you)撕裂、割斷現象。樓(lou)(lou)承板(ban)擱(ge)置在鋼梁上(shang)時(shi)(shi)應防止(zhi)探頭(tou)。鋪料(liao)時(shi)(shi)操作人員應系帶，并保證(zheng)邊(bian)(bian)鋪設邊(bian)(bian)固(gu)定(ding)在周(zhou)邊(bian)(bian)繩上(shang)。 焊(han)(han)接(jie)(jie)采用(yong)(yong)熔透點焊(han)(han)連(lian)接(jie)(jie)，施焊(han)(han)前(qian)應準備邊(bian)(bian)角料(liao)引弧試焊(han)(han)，調整施焊(han)(han)電流.因樓(lou)(lou)承板(ban)底(di)部無水平模板(ban)及垂(chui)直支撐，澆筑混凝土時(shi)(shi)布料(liao)不宜(yi)太(tai)集中，采用(yong)(yong)平板(ban)振搗器及時(shi)(shi)分攤振搗。

鍍鋅鋼板廠家鍍鋅鋼板的表面鍍鋅主要采用的方法是熱鍍鋅。西寧鍍鋅鋼板熱(re)(re)鍍(du)(du)(du)鋅(xin)(xin)是(shi)由較古老的(de)(de)熱(re)(re)鍍(du)(du)(du)方法發(fa)展(zhan)(zhan)而(er)來(lai)的(de)(de)，自從1836年(nian)法國把熱(re)(re)鍍(du)(du)(du)鋅(xin)(xin)應用于(yu)工業(ye)以來(lai)，已經(jing)有一百七十年(nian)的(de)(de)歷史了(le)。然而(er)，熱(re)(re)鍍(du)(du)(du)鋅(xin)(xin)工業(ye)是(shi)近(jin)三十年(nian)來(lai)伴隨冷軋帶(dai)鋼的(de)(de)飛速發(fa)展(zhan)(zhan)而(er)得(de)到了(le)大規模發(fa)展(zhan)(zhan)。鍍(du)(du)(du)鋅(xin)(xin)溶(rong)液(ye)(ye)(ye)有氰(qing)(qing)(qing)化(hua)物(wu)鍍(du)(du)(du)液(ye)(ye)(ye)和無(wu)(wu)氰(qing)(qing)(qing)鍍(du)(du)(du)液(ye)(ye)(ye)兩類(lei)。氰(qing)(qing)(qing)化(hua)物(wu)鍍(du)(du)(du)液(ye)(ye)(ye)中分微氰(qing)(qing)(qing)、低(di)氰(qing)(qing)(qing)、中氰(qing)(qing)(qing)、和高氰(qing)(qing)(qing)幾類(lei)。無(wu)(wu)氰(qing)(qing)(qing)鍍(du)(du)(du)液(ye)(ye)(ye)有堿性(xing)鋅(xin)(xin)酸鹽(yan)鍍(du)(du)(du)液(ye)(ye)(ye)、銨鹽(yan)鍍(du)(du)(du)液(ye)(ye)(ye)、硫酸鹽(yan)鍍(du)(du)(du)液(ye)(ye)(ye)及無(wu)(wu)氨氯化(hua)物(wu)鍍(du)(du)(du)液(ye)(ye)(ye)等。氰(qing)(qing)(qing)化(hua)鍍(du)(du)(du)鋅(xin)(xin)溶(rong)液(ye)(ye)(ye)均(jun)鍍(du)(du)(du)能力好，得(de)到的(de)(de)鍍(du)(du)(du)層光滑(hua)細(xi)致，在生產中被長期采(cai)用。但由于(yu)氰(qing)(qing)(qing)化(hua)物(wu)劇毒，對(dui)環境污染嚴重，近(jin)年(nian)來(lai)已趨向于(yu)采(cai)用低(di)氰(qing)(qing)(qing)、微氰(qing)(qing)(qing)、無(wu)(wu)氰(qing)(qing)(qing)鍍(du)(du)(du)鋅(xin)(xin)溶(rong)液(ye)(ye)(ye)。

樓(lou)承(cheng)板(ban)(ban)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)首要(yao)起到防腐(fu)的(de)(de)(de)效果，按(an)標準組合(he)樓(lou)板(ban)(ban)與(yu)非組合(he)樓(lou)板(ban)(ban)壓型鋼板(ban)(ban)應(ying)選用(yong)(yong)(yong)熱鍍(du)鋅(xin)(xin)(xin)(xin)(xin)，不(bu)該選用(yong)(yong)(yong)電鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼板(ban)(ban)，其雙(shuang)面鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層總含(han)(han)量(liang)要(yao)滿足(zu)在使用(yong)(yong)(yong)期(qi)間不(bu)致銹損的(de)(de)(de)要(yao)求。當(dang)作為非組合(he)樓(lou)承(cheng)板(ban)(ban)時(shi)，鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層含(han)(han)量(liang)可選用(yong)(yong)(yong)較(jiao)(jiao)(jiao)低值(zhi);當(dang)為組合(he)樓(lou)承(cheng)板(ban)(ban)時(shi)，鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層含(han)(han)量(liang)不(bu)該小于(yu)150g/m2。當(dang)為組合(he)樓(lou)板(ban)(ban)且(qie)使用(yong)(yong)(yong)環(huan)境條件較(jiao)(jiao)(jiao)為惡劣時(shi)，鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層含(han)(han)量(liang)應(ying)選用(yong)(yong)(yong)上限值(zhi)或更高(gao)值(zhi)。更高(gao)的(de)(de)(de)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)要(yao)求，如雙(shuang)面鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量(liang)為300g/m2、350g/m2或鍍(du)鋁(lv)鋅(xin)(xin)(xin)(xin)(xin)(5%鋁(lv))275g/m2、300g/m2等，較(jiao)(jiao)(jiao)高(gao)的(de)(de)(de)鍍(du)層量(liang)使組合(he)樓(lou)板(ban)(ban)有更長(chang)耐久性，同等量(liang)的(de)(de)(de)鍍(du)鋁(lv)鋅(xin)(xin)(xin)(xin)(xin)的(de)(de)(de)防銹蝕才能大約兩倍(bei)于(yu)一般熱鍍(du)鋅(xin)(xin)(xin)(xin)(xin)。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量(liang)也不(bu)是越(yue)厚越(yue)好，當(dang)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量(liang)較(jiao)(jiao)(jiao)厚時(shi)，抗剪連(lian)接件栓釘(ding)的(de)(de)(de)焊接質量(liang)就(jiu)很難保證(zheng)，焊接時(shi)，宜選用(yong)(yong)(yong)局部(bu)除鋅(xin)(xin)(xin)(xin)(xin)處理措(cuo)施。

鋼(gang)(gang)筋桁架樓(lou)承(cheng)板完成(cheng)(cheng)了(le)機(ji)械化出產(chan)(chan)，有(you)利于鋼(gang)(gang)筋擺(bai)放距離均勻、混(hun)凝土保(bao)護層厚度共(gong)同，提高了(le)樓(lou)板的(de)施工質(zhi)量。裝配式鋼(gang)(gang)筋桁架樓(lou)承(cheng)板可明顯削(xue)減現場鋼(gang)(gang)筋綁扎工程(cheng)量，加(jia)(jia)速(su)施工進度，添加(jia)(jia)施工確保(bao)，完成(cheng)(cheng)文明施工。裝配式模板和(he)連接件拆裝便(bian)利，可屢次重復使(shi)用，節省(sheng)鋼(gang)(gang)材(cai)，契合國家節能環保(bao)的(de)要求(qiu)。鋼(gang)(gang)構自主研(yan)制(zhi)(zhi)的(de)產(chan)(chan)品(pin)(pin)配套自動(dong)化出產(chan)(chan)設備，大大提高了(le)勞動(dong)出產(chan)(chan)率，有(you)用降低(di)了(le)產(chan)(chan)品(pin)(pin)成(cheng)(cheng)本，并編(bian)制(zhi)(zhi)了(le)產(chan)(chan)品(pin)(pin)出產(chan)(chan)企業規范、規劃(hua)手(shou)(shou)冊(ce)和(he)節點(dian)構造圖集以(yi)及施工手(shou)(shou)冊(ce)。該(gai)產(chan)(chan)品(pin)(pin)經(jing)過(guo)浙江(jiang)大學土木工程(cheng)測(ce)試中心(xin)檢測(ce)，并經(jing)過(guo)多項工程(cheng)使(shi)用，各(ge)項功(gong)能可以(yi)滿意現澆(jiao)鋼(gang)(gang)筋混(hun)凝土樓(lou)板承(cheng)載力和(he)變形的(de)要求(qiu)。