鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼板(ban)的(de)(de)(de)表面鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)主要采用的(de)(de)(de)方法(fa)是熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)。熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)是由較古(gu)老(lao)的(de)(de)(de)熱(re)鍍(du)(du)(du)方法(fa)發(fa)展而來(lai)的(de)(de)(de)，自從(cong)1836年(nian)法(fa)國把熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)應用于(yu)(yu)工(gong)業(ye)以來(lai)，已(yi)經有(you)一百七十(shi)年(nian)的(de)(de)(de)歷史了(le)。然而，熱(re)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)工(gong)業(ye)是近三十(shi)年(nian)來(lai)伴隨冷軋(ya)帶鋼的(de)(de)(de)飛速發(fa)展而得到了(le)大規模發(fa)展。鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)溶液(ye)(ye)有(you)氰(qing)(qing)(qing)化(hua)物鍍(du)(du)(du)液(ye)(ye)和無(wu)氰(qing)(qing)(qing)鍍(du)(du)(du)液(ye)(ye)兩類(lei)。氰(qing)(qing)(qing)化(hua)物鍍(du)(du)(du)液(ye)(ye)中分微氰(qing)(qing)(qing)、低(di)氰(qing)(qing)(qing)、中氰(qing)(qing)(qing)、和高(gao)氰(qing)(qing)(qing)幾類(lei)。無(wu)氰(qing)(qing)(qing)鍍(du)(du)(du)液(ye)(ye)有(you)堿性鋅(xin)(xin)(xin)(xin)(xin)酸鹽鍍(du)(du)(du)液(ye)(ye)、銨(an)鹽鍍(du)(du)(du)液(ye)(ye)、硫酸鹽鍍(du)(du)(du)液(ye)(ye)及(ji)無(wu)氨氯化(hua)物鍍(du)(du)(du)液(ye)(ye)等。氰(qing)(qing)(qing)化(hua)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)溶液(ye)(ye)均鍍(du)(du)(du)能力(li)好，得到的(de)(de)(de)鍍(du)(du)(du)層光滑細致(zhi)，在生(sheng)產中被長期采用。但由于(yu)(yu)氰(qing)(qing)(qing)化(hua)物劇毒，對環境(jing)污染嚴重(zhong)，近年(nian)來(lai)已(yi)趨向于(yu)(yu)采用低(di)氰(qing)(qing)(qing)、微氰(qing)(qing)(qing)、無(wu)氰(qing)(qing)(qing)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)溶液(ye)(ye)。

首先，在鋼結構樓層板中要達到耐火1.5小時，總的來說可以選擇開口板、縮口板、閉口板三大類。寶山冷軋卷規范上混凝土要高于開口板肋頂之上80mm，并且板底需配置板底受力筋。還有一種就是再開口板底部刷防火涂料，涂料厚度大于等于15,這樣的話，只要達到構造要求高于肋頂5公分就可以了。冷軋卷批發而(er)縮(suo)口板(ban)和閉口板(ban)，只需(xu)要總(zong)的樓板(ban)厚度大于等(deng)于110即可，但(dan)是(shi)(shi)縮(suo)口板(ban)雖然在防火方(fang)面(mian)比開口板(ban)要好。但(dan)是(shi)(shi)底部還是(shi)(shi)需(xu)要加板(ban)底受力筋，而(er)閉口板(ban)則(ze)不(bu)需(xu)要。

鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼板按(an)用(yong)(yong)(yong)途又可分(fen)(fen)為(wei)一(yi)般用(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)、建筑外側板用(yong)(yong)(yong)、結(jie)(jie)構用(yong)(yong)(yong)、瓦壟板用(yong)(yong)(yong)、拉伸用(yong)(yong)(yong)和(he)深沖用(yong)(yong)(yong)等(deng)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼板。對于一(yi)般防(fang)保(bao)護用(yong)(yong)(yong)鍍(du)(du)(du)(du)層，可以采用(yong)(yong)(yong)堿(jian)性(xing)鋅(xin)(xin)(xin)酸鹽鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)彩色(se)(se)鈍(dun)化(hua)工藝。有時為(wei)了(le)產品(pin)的(de)配色(se)(se)需(xu)要，也可以采用(yong)(yong)(yong)藍(lan)白(bai)色(se)(se)鈍(dun)化(hua)工藝，比如軍綠色(se)(se)鈍(dun)化(hua)、黑色(se)(se)鈍(dun)化(hua)等(deng)。為(wei)提(ti)高鋼管的(de)耐腐(fu)(fu)蝕性(xing)能(neng)，對一(yi)般鋼管進(jin)行鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)。鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)卷分(fen)(fen)熱(re)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)和(he)電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)兩種，熱(re)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)層厚，電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)成本(ben)低，表面不是很光滑。吹氧焊管：用(yong)(yong)(yong)作煉鋼吹氧用(yong)(yong)(yong)管，一(yi)般用(yong)(yong)(yong)小(xiao)口徑的(de)焊接鋼管，規格由3/8-2寸八種。用(yong)(yong)(yong)08、10、15、20或(huo)者195-Q235的(de)鋼帶制(zhi)作成的(de)，為(wei)了(le)防(fang)腐(fu)(fu)蝕，有得進(jin)行滲(shen)鋁處理。鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)其防(fang)護作用(yong)(yong)(yong)更強，抗腐(fu)(fu)蝕能(neng)力強。整個結(jie)(jie)構由鋅(xin)(xin)(xin)，形成致密的(de)四元結(jie)(jie)晶(jing)體，此結(jie)(jie)晶(jing)體在鋼板上形成一(yi)層屏障， 因而有效的(de)防(fang)止腐(fu)(fu)蝕因子穿透。 耐腐(fu)(fu)蝕性(xing)來自鋅(xin)(xin)(xin)的(de)障礙層保(bao)護功能(neng)強。

樓(lou)(lou)承板(ban)(ban)(ban)鋼結構柱網(wang)間(jian)(jian)距一般(ban)5~9.0m×8~15m，次(ci)(ci)梁(liang)間(jian)(jian)距3m，而樓(lou)(lou)承板(ban)(ban)(ban)下(xia)料長(chang)度(du)為(wei)4.97~8.97m，運輸(shu)與安裝均較困難，尤其是帶由圓弧區垂(chui)(chui)直吊(diao)(diao)裝樓(lou)(lou)承板(ban)(ban)(ban)，由上而下(xia)在(zai)次(ci)(ci)梁(liang)狹(xia)間(jian)(jian)穿(chuan)套(tao)比較困難，且打亂了次(ci)(ci)梁(liang)焊(han)接(jie)正常(chang)工序。控制下(xia)料長(chang)度(du)為(wei)3～6m，則(ze)可避(bi)免(mian)垂(chui)(chui)直運輸(shu)時(shi)在(zai)次(ci)(ci)梁(liang)間(jian)(jian)無(wu)法(fa)吊(diao)(diao)運的問(wen)題。 樓(lou)(lou)承板(ban)(ban)(ban)吊(diao)(diao)運時(shi)采用專用軟(ruan)吊(diao)(diao)索。每次(ci)(ci)吊(diao)(diao)裝時(shi)應檢查(cha)軟(ruan)吊(diao)(diao)索是否(fou)有撕裂(lie)、割(ge)斷現象。樓(lou)(lou)承板(ban)(ban)(ban)擱置在(zai)鋼梁(liang)上時(shi)應防止探(tan)頭。鋪(pu)料時(shi)操作人員應系帶，并保證邊(bian)鋪(pu)設(she)邊(bian)固定在(zai)周(zhou)邊(bian)繩上。 焊(han)接(jie)采用熔透點焊(han)連接(jie)，施焊(han)前應準(zhun)備邊(bian)角(jiao)料引弧試焊(han)，調整施焊(han)電流(liu).因樓(lou)(lou)承板(ban)(ban)(ban)底(di)部無(wu)水(shui)平模板(ban)(ban)(ban)及(ji)垂(chui)(chui)直支(zhi)撐，澆筑混凝土時(shi)布料不(bu)宜太集中，采用平板(ban)(ban)(ban)振搗器及(ji)時(shi)分攤振搗。

實現(xian)了(le)機械(xie)化(hua)生(sheng)產(chan)(chan)，有(you)利(li)于(yu)鋼(gang)(gang)筋排列間距均勻、混(hun)凝(ning)(ning)土(tu)保(bao)(bao)護層厚度(du)一致(zhi)，提高(gao)了(le)樓板(ban)(ban)的施工質量。裝配式(shi)鋼(gang)(gang)筋桁架(jia)樓承(cheng)板(ban)(ban)可顯著減(jian)少現(xian)場(chang)鋼(gang)(gang)筋綁扎工程量，加(jia)快施工進(jin)度(du)，增加(jia)施工保(bao)(bao)證，實現(xian)文明施工。裝配式(shi)模(mo)板(ban)(ban)和連接件拆裝方便，可多次重(zhong)復利(li)用(yong)，節約(yue)鋼(gang)(gang)材，符合國家節能環保(bao)(bao)的要求。鋼(gang)(gang)構自(zi)(zi)主研發的產(chan)(chan)品(pin)(pin)配套自(zi)(zi)動化(hua)生(sheng)產(chan)(chan)設(she)備，大(da)大(da)提高(gao)了(le)勞動生(sheng)產(chan)(chan)率，有(you)效降(jiang)低了(le)產(chan)(chan)品(pin)(pin)成本，并編制了(le)產(chan)(chan)品(pin)(pin)生(sheng)產(chan)(chan)企業標準(zhun)、設(she)計手冊(ce)和節點構造圖集以(yi)及施工手冊(ce)。并經過多項(xiang)工程應用(yong)，各(ge)項(xiang)性能可以(yi)滿足現(xian)澆(jiao)鋼(gang)(gang)筋混(hun)凝(ning)(ning)土(tu)樓板(ban)(ban)承(cheng)載力(li)和變形的要求。

彩(cai)(cai)鋼(gang)(gang)(gang)是(shi)指彩(cai)(cai)涂(tu)鋼(gang)(gang)(gang)板(ban)(ban)(ban)，彩(cai)(cai)涂(tu)鋼(gang)(gang)(gang)板(ban)(ban)(ban)是(shi)一(yi)(yi)種帶有(you)有(you)機涂(tu)層的鋼(gang)(gang)(gang)板(ban)(ban)(ban)，傳(chuan)統(tong)的涂(tu)層分好幾類，氟(fu)碳涂(tu)層的，幾乎(hu)可(ke)(ke)以防腐20年。一(yi)(yi)般從鋼(gang)(gang)(gang)廠(chang)以卷筒的形式(shi)分銷到(dao)各(ge)地。我(wo)們經常看(kan)到(dao)的彩(cai)(cai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)是(shi)指加工好的板(ban)(ban)(ban)材(cai)，厚(hou)度(du)(du)在50~100mm左右，它是(shi)由中間的填(tian)料和兩面的彩(cai)(cai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)組成。其中，彩(cai)(cai)板(ban)(ban)(ban)厚(hou)度(du)(du)有(you)0.4mm、0.5mm、0.6mm等(deng)不同的厚(hou)度(du)(du),中間層可(ke)(ke)以是(shi)聚胺脂、巖綿或泡沫塑料等(deng)。由于有(you)專用型材(cai)，所以用彩(cai)(cai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)構(gou)筑的廠(chang)房建(jian)造速度(du)(du)很快（如非(fei)典時的小(xiao)湯山醫院(yuan)），但強度(du)(du)低(di)。