彩(cai)(cai)鋼是(shi)指彩(cai)(cai)涂鋼板(ban)(ban)(ban)，彩(cai)(cai)涂鋼板(ban)(ban)(ban)是(shi)一種帶(dai)有(you)有(you)機涂層的鋼板(ban)(ban)(ban)，傳統的涂層分好幾類，氟碳涂層的，幾乎(hu)可(ke)以防腐20年(nian)。一般從鋼廠以卷筒(tong)的形式分銷(xiao)到(dao)各地。我們經常看(kan)到(dao)的彩(cai)(cai)鋼板(ban)(ban)(ban)是(shi)指加工好的板(ban)(ban)(ban)材，厚(hou)度(du)(du)在(zai)50~100mm左右，它(ta)是(shi)由中(zhong)(zhong)(zhong)間的填料(liao)(liao)和兩面的彩(cai)(cai)鋼板(ban)(ban)(ban)組成。其中(zhong)(zhong)(zhong)，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(zhong)(zhong)(zhong)間層可(ke)以是(shi)聚(ju)胺脂、巖(yan)綿或泡沫塑料(liao)(liao)等(deng)。由于有(you)專用(yong)型(xing)材，所以用(yong)彩(cai)(cai)鋼板(ban)(ban)(ban)構筑的廠房建造速度(du)(du)很快（如非典時的小湯山醫院），但強(qiang)度(du)(du)低。

重慶樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)分兩種。一(yi)種是把(ba)樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)當(dang)做(zuo)承(cheng)(cheng)受(shou)拉(la)力(li)(li)的(de)(de)(de)(de)(de)鋼筋(jin)(jin)計算(suan)的(de)(de)(de)(de)(de)，另外一(yi)種是僅把(ba)樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)作為(wei)模板(ban)(ban)計算(suan)而不參與受(shou)力(li)(li)的(de)(de)(de)(de)(de)。做(zuo)模板(ban)(ban)計算(suan)的(de)(de)(de)(de)(de)比較簡單(dan)，直(zhi)接按(an)照跨度頂就(jiu)行(xing)了。2米以下選(xuan)0.8的(de)(de)(de)(de)(de)，2-3米的(de)(de)(de)(de)(de)選(xuan)1.0的(de)(de)(de)(de)(de)。樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)作為(wei)受(shou)力(li)(li)鋼筋(jin)(jin)計算(suan)，就(jiu)按(an)照模板(ban)(ban)的(de)(de)(de)(de)(de)選(xuan)用樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)（或者加厚且只(zhi)能加厚），然后(hou)在計算(suan)配筋(jin)(jin)的(de)(de)(de)(de)(de)時候可(ke)以按(an)照面(mian)積減少鋼筋(jin)(jin)用量(liang)。樓(lou)(lou)承(cheng)(cheng)板(ban)(ban)不能單(dan)獨計算(suan)的(de)(de)(de)(de)(de)，它(ta)和整個樓(lou)(lou)板(ban)(ban)是一(yi)個體系的(de)(de)(de)(de)(de)。

熱(re)(re)鍍(du)鋅(xin)卷板(ban)(ban)現貨(huo)消息：熱(re)(re)鍍(du)鋅(xin)產(chan)(chan)品(pin)廣泛用于建筑、家電、車船、容器制(zhi)造業(ye)、機電業(ye)等(deng)，幾乎涉及到(dao)衣食住行各個領域。近年來，世界鍍(du)鋅(xin)鋼(gang)板(ban)(ban)需(xu)求量不斷(duan)增加，產(chan)(chan)量增長(chang)也很快，在美、日(ri)等(deng)鋼(gang)材生產(chan)(chan)大國，熱(re)(re)鍍(du)鋅(xin)鋼(gang)板(ban)(ban)在鋼(gang)材中所占(zhan)比例(li)已高達13%-15%。 熱(re)(re)鍍(du)鋅(xin)卷板(ban)(ban)現貨(huo)消息：近來，汽車行業(ye)越(yue)來越(yue)重(zhong)視材料的(de)(de)使用壽命，用涂漆冷(leng)軋鋼(gang)板(ban)(ban)已不能(neng)滿(man)足耐(nai)腐蝕方面的(de)(de)要(yao)求。在這種(zhong)情況下，耐(nai)腐蝕性(xing)優良且(qie)成本低(di)廉的(de)(de)熱(re)(re)鍍(du)鋅(xin)板(ban)(ban)開始普遍受到(dao)了汽車廠(chang)家的(de)(de)青睞。

鍍鋅鋼管廠家熱鍍鋅板和電鍍鋅板在鍍鋅量上有很大的差別，就像山東彩涂卷）。熱鍍鋅的鍍鋅量不可能太小，一般較小為雙面50～60g／m2，較大可達600g／m2。仁懷鍍鋅鋼管電鍍(du)(du)鋅(xin)(xin)(xin)板(ban)的(de)鍍(du)(du)鋅(xin)(xin)(xin)層可(ke)以很薄，較(jiao)(jiao)小達15g／m2，但(dan)要求鍍(du)(du)層較(jiao)(jiao)厚的(de)話(hua)則生產(chan)線速度很慢(man)，不適(shi)應現(xian)代(dai)化機組的(de)工藝特點，一(yi)(yi)(yi)般(ban)較(jiao)(jiao)大(da)(da)為lO0g／m2左右。正因為如此，電鍍(du)(du)鋅(xin)(xin)(xin)板(ban)的(de)生產(chan)受到很大(da)(da)的(de)限制。工一(yi)(yi)(yi)般(ban)電鍍(du)(du)鋅(xin)(xin)(xin)比較(jiao)(jiao)多，適(shi)用(yong)(yong)于(yu)小部(bu)件(jian)；熱鍍(du)(du)鋅(xin)(xin)(xin)一(yi)(yi)(yi)般(ban)用(yong)(yong)于(yu)電力(li)設(she)備(bei)和(he)構件(jian)，適(shi)用(yong)(yong)于(yu)大(da)(da)的(de)部(bu)件(jian)和(he)設(she)備(bei)。當然他們的(de)價格也相對便宜一(yi)(yi)(yi)些。建設(she)部(bu)已正式(shi)下(xia)文(wen)，淘汰技術落(luo)后(hou)的(de)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)管(guan)，不準用(yong)(yong)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)管(guan)作水(shui)、煤氣管(guan)。

首(shou)先，在鋼結構(gou)樓層板(ban)(ban)(ban)(ban)(ban)中要達到耐火1.5小時，總的來說可(ke)以(yi)選擇開口板(ban)(ban)(ban)(ban)(ban)、縮口板(ban)(ban)(ban)(ban)(ban)、閉(bi)口板(ban)(ban)(ban)(ban)(ban)三大(da)類。規范(fan)上混(hun)凝土要高于(yu)(yu)開口板(ban)(ban)(ban)(ban)(ban)肋頂(ding)(ding)之上80mm，并且板(ban)(ban)(ban)(ban)(ban)底(di)需(xu)配置(zhi)板(ban)(ban)(ban)(ban)(ban)底(di)受力筋。還(huan)有一(yi)種就(jiu)(jiu)是(shi)再開口板(ban)(ban)(ban)(ban)(ban)底(di)部刷防火涂料，涂料厚度大(da)于(yu)(yu)等于(yu)(yu)15,這樣的話，只要達到構(gou)造要求高于(yu)(yu)肋頂(ding)(ding)5公分就(jiu)(jiu)可(ke)以(yi)了。而縮口板(ban)(ban)(ban)(ban)(ban)和閉(bi)口板(ban)(ban)(ban)(ban)(ban)，只需(xu)要總的樓板(ban)(ban)(ban)(ban)(ban)厚度大(da)于(yu)(yu)等于(yu)(yu)110即(ji)可(ke)，但是(shi)縮口板(ban)(ban)(ban)(ban)(ban)雖然(ran)在防火方面比開口板(ban)(ban)(ban)(ban)(ban)要好(hao)。但是(shi)底(di)部還(huan)是(shi)需(xu)要加板(ban)(ban)(ban)(ban)(ban)底(di)受力筋，而閉(bi)口板(ban)(ban)(ban)(ban)(ban)則不需(xu)要。

熱(re)(re)(re)鍍(du)鋅(xin)生產發(fa)展一(yi)直處于滯后狀態。20世(shi)紀50年(nian)(nian)代(dai)到60年(nian)(nian)代(dai)陸續建(jian)成(cheng)了(le)13條單張(zhang)鋼(gang)板熔劑法熱(re)(re)(re)鍍(du)鋅(xin)機組(zu)，能(neng)力(li)為10萬(wan)t/a，但因產量(liang)低、成(cheng)本高、質量(liang)差、污(wu)染環(huan)境、經濟效益差等缺陷已先(xian)后停、轉產。從(cong)20世(shi)紀70年(nian)(nian)代(dai)末，我國(guo)(guo)才(cai)開始建(jian)造(zao)大(da)型寬(kuan)帶熱(re)(re)(re)鍍(du)鋅(xin)機組(zu)。熱(re)(re)(re)鍍(du)鋅(xin)帶鋼(gang)在我國(guo)(guo)市場(chang)一(yi)直是緊(jin)缺品種(zhong)。從(cong)20世(shi)紀90年(nian)(nian)代(dai)中期以來，每年(nian)(nian)都要從(cong)國(guo)(guo)外進(jin)口80-100萬(wan)t左右。隨著國(guo)(guo)內經濟的(de)發(fa)展，尤(you)其(qi)是汽車、家電及建(jian)筑業的(de)發(fa)展，對(dui)鍍(du)鋅(xin)帶鋼(gang)的(de)需求量(liang)也大(da)大(da)增加。