樓(lou)承(cheng)(cheng)板(ban)(ban)組(zu)(zu)合板(ban)(ban)是一(yi)種十分(fen)合理的結(jie)構(gou)(gou)方(fang)式，它能(neng)(neng)夠(gou)按其(qi)各組(zu)(zu)成部(bu)件所處(chu)的方(fang)位和(he)特色(se)，充(chong)分(fen)發揮鋼材抗拉和(he)混凝土抗壓功能(neng)(neng)好(hao)的長處(chu)，并具有杰(jie)出的抗震功能(neng)(neng)、施(shi)工功能(neng)(neng)。這(zhe)種結(jie)構(gou)(gou)現在被廣(guang)泛(fan)運用于國內外修建(jian)中，但在國內大都將樓(lou)承(cheng)(cheng)板(ban)(ban)當作模(mo)板(ban)(ban)運用，而沒有充(chong)分(fen)發揮樓(lou)承(cheng)(cheng)板(ban)(ban)的效果。 與(yu)一(yi)般鋼筋混凝土樓(lou)板(ban)(ban)比較，樓(lou)承(cheng)(cheng)板(ban)(ban)組(zu)(zu)合樓(lou)板(ban)(ban)具備以下長處(chu)：樓(lou)承(cheng)(cheng)板(ban)(ban)能(neng)(neng)夠(gou)作為(wei)現澆混凝土的模(mo)板(ban)(ban)。這(zhe)樣(yang)就省(sheng)掉(diao)了(le)施(shi)工中裝置(zhi)和(he)撤除模(mo)板(ban)(ban)等工序，然(ran)后節約了(le)時刻和(he)勞(lao)動力;當樓(lou)承(cheng)(cheng)板(ban)(ban)裝置(zhi)好(hao)今后將能(neng)(neng)夠(gou)作為(wei)施(shi)工平臺(tai)運用。

重慶鍍(du)(du)(du)鋅(xin)(xin)板近(jin)二十(shi)年來(lai)鋼(gang)帶連(lian)續熱鍍(du)(du)(du)鋅(xin)(xin)技(ji)(ji)術(shu)、裝(zhuang)(zhuang)備以(yi)及相應的控制(zhi)手段均(jun)有(you)(you)巨大(da)的發(fa)展(zhan)(zhan)，使(shi)鍍(du)(du)(du)鋅(xin)(xin)板得以(yi)滿足汽(qi)車(che)面板和(he)家電(dian)用板的苛(ke)刻要求，并從而以(yi)其(qi)比電(dian)鍍(du)(du)(du)鋅(xin)(xin)合金鋼(gang)帶廉價、耐蝕(shi)性(xing)優異而大(da)有(you)(you)取代之勢(shi)。熱鍍(du)(du)(du)鋅(xin)(xin)生產(chan)技(ji)(ji)術(shu)與裝(zhuang)(zhuang)備開發(fa)技(ji)(ji)術(shu)及經驗，通過技(ji)(ji)術(shu)創新、優化設計、精密制(zhi)造以(yi)及國外技(ji)(ji)術(shu)合作，突破制(zhi)約我國高性(xing)能汽(qi)車(che)用熱鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)板生產(chan)技(ji)(ji)術(shu)與裝(zhuang)(zhuang)備發(fa)展(zhan)(zhan)瓶頸。

由(you)于(yu)(yu)(yu)我國鋅(xin)(xin)資(zi)源比較豐富(fu)，鍍(du)鋅(xin)(xin)又是(shi)一種價(jia)廉、能防銹，又能裝飾的(de)高性價(jia)比鍍(du)種，因(yin)而在汽車(che)(che)、機械(xie)、電子、船(chuan)舶(bo)、儀(yi)表、輕工(gong)(gong)等(deng)(deng)(deng)工(gong)(gong)業(ye)部門得到廣泛的(de)應用。如機械(xie)零(ling)件(jian)、低壓電器、高壓開(kai)關、緊(jin)固連接件(jian)、鋼鐵結構(gou)件(jian)、建筑(zhu)五(wu)金(jin)、農業(ye)機械(xie)、輕工(gong)(gong)產(chan)品等(deng)(deng)(deng)都離不開(kai)鍍(du)鋅(xin)(xin)鈍化制(zhi)品。鍍(du)鋅(xin)(xin)板(ban)(ban)(ban)卷(juan)因(yin)此(ci)可(ke)分為熱軋(ya)鍍(du)鋅(xin)(xin)板(ban)(ban)(ban)卷(juan)和(he)冷軋(ya)熱鍍(du)鋅(xin)(xin)板(ban)(ban)(ban)卷(juan)，它們主要用于(yu)(yu)(yu)建筑(zhu)、家電、汽車(che)(che)、容器、交通及(ji)家業(ye)等(deng)(deng)(deng)領域。特(te)別是(shi)鋼結構(gou)建筑(zhu)、汽車(che)(che)制(zhi)造(zao)、鋼板(ban)(ban)(ban)倉制(zhi)造(zao)等(deng)(deng)(deng)行業(ye)。 重慶鍍(du)鋅(xin)(xin)卷(juan)特(te)點主要為：耐腐蝕強、表面質量好(hao)、得利于(yu)(yu)(yu)深加工(gong)(gong)、經濟實用等(deng)(deng)(deng)。

用電鍍法制造這種鍍鋅鋼板具有良好的加工性。但鍍層較薄，耐腐蝕性不如熱浸法鍍鋅板；單面鍍和雙面差鍍鋅鋼板。單面鍍鋅鋼板，即只在一面鍍鋅的產品。銅梁電鍍鋅在焊接、涂裝、防銹處理、加工等方面，具有比雙面鍍鋅板好的適應性。為克服單面未涂鋅的缺點，又有一種在另面涂以薄層鋅的鍍鋅板，即雙面差鍍鋅板；合金、復合鍍鋅鋼板。電鍍鋅廠家它(ta)是用(yong)(yong)(yong)(yong)鋅(xin)(xin)和(he)(he)其他金(jin)屬如鉛、鋅(xin)(xin)制成合金(jin)乃至復合鍍成的(de)鋼(gang)(gang)板(ban)(ban)(ban)。這(zhe)種鋼(gang)(gang)板(ban)(ban)(ban)既具(ju)有防(fang)銹性(xing)能(neng)，又有良好的(de)涂(tu)裝性(xing)能(neng)。 除上述五(wu)種外，還(huan)有彩(cai)色鍍鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)、印花(hua)涂(tu)裝鍍鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)、聚氯(lv)乙烯疊層(ceng)鍍鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)等(deng)。但目前(qian)常用(yong)(yong)(yong)(yong)的(de)仍為(wei)熱浸鍍鋅(xin)(xin)板(ban)(ban)(ban)。 鍍鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)按用(yong)(yong)(yong)(yong)途又可分(fen)為(wei)一般用(yong)(yong)(yong)(yong)、屋頂(ding)用(yong)(yong)(yong)(yong)、建筑外側(ce)板(ban)(ban)(ban)用(yong)(yong)(yong)(yong)、結構用(yong)(yong)(yong)(yong)、瓦壟板(ban)(ban)(ban)用(yong)(yong)(yong)(yong)、拉(la)伸用(yong)(yong)(yong)(yong)和(he)(he)深沖(chong)用(yong)(yong)(yong)(yong)等(deng)鍍鋅(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)。

鍍(du)鋅(xin)(xin)(xin)(xin)帶(dai)鋼的(de)鋅(xin)(xin)(xin)(xin)層(ceng)特(te)性 電(dian)鍍(du)鋅(xin)(xin)(xin)(xin)層(ceng)是(shi)不(bu)能形(xing)(xing)成(cheng)鋅(xin)(xin)(xin)(xin)花(hua)的(de)，熱(re)鍍(du)鋅(xin)(xin)(xin)(xin)層(ceng)則有鋅(xin)(xin)(xin)(xin)花(hua)，其形(xing)(xing)成(cheng)過(guo)程如下：當鍍(du)鋅(xin)(xin)(xin)(xin)帶(dai)從(cong)鋅(xin)(xin)(xin)(xin)鍋出(chu)來(lai)后(hou)，經(jing)氣刀的(de)噴吹(chui)，大(da)量(liang)鋅(xin)(xin)(xin)(xin)液被吹(chui)回鋅(xin)(xin)(xin)(xin)鍋，這時帶(dai)鋼表(biao)面還有純(chun)鋅(xin)(xin)(xin)(xin)層(ceng)，呈液 態(tai)附在(zai)鋼板表(biao)面，在(zai)鋼板表(biao)面形(xing)(xing)成(cheng)大(da)量(liang)結(jie)(jie)晶核，隨(sui)著鋼板上升冷(leng)卻，使(shi)結(jie)(jie)晶核慢(man)(man)慢(man)(man)長成(cheng)鋅(xin)(xin)(xin)(xin)花(hua)。冷(leng)卻速度越(yue)快鋅(xin)(xin)(xin)(xin)花(hua)越(yue)小，冷(leng)卻速度越(yue)慢(man)(man)鋅(xin)(xin)(xin)(xin)花(hua)越(yue)大(da)。熱(re)鍍(du)鋅(xin)(xin)(xin)(xin)帶(dai)鋼在(zai)我國市場一直是(shi)緊缺品種。從(cong)20世紀90年代(dai)中期以來(lai)，每年都要(yao)從(cong)國外進口80-100萬t左右。隨(sui)著國內經(jing)濟的(de)發展，尤其是(shi)汽(qi)車、家電(dian)及建筑業的(de)發展，對鍍(du)鋅(xin)(xin)(xin)(xin)帶(dai)鋼的(de)需求量(liang)也大(da)大(da)增(zeng)加。

熱鍍鋅卷(juan)(juan)板價格行業(ye)統計(ji)數據顯(xian)(xian)示，十(shi)一月國內粗(cu)鋼日均產(chan)量為(wei)兩百零九(jiu)萬(wan)噸(dun)，環比下降3.3%，創出今年以來水平，但是(shi)當前(qian)減產(chan)受(shou)到(dao)季節性因素支(zhi)撐，市場(chang)(chang)對數據有(you)效(xiao)(xiao)性提出質(zhi)疑。鍍鋅卷(juan)(juan)工業(ye)品(pin)而(er)言，近期陸續公布的(de)重要數據中性偏多。但值(zhi)得注意(yi)的(de)是(shi)，同年十(shi)一月熱鍍鋅卷(juan)(juan)板價格工業(ye)增(zeng)加(jia)值(zhi)和投資增(zeng)速放緩，進一步印證了國內總(zong)需(xu)(xu)(xu)求(qiu)(qiu)乏力(li)，工業(ye)復蘇形勢(shi)不(bu)(bu)容樂(le)觀。加(jia)上未來經(jing)濟結(jie)構調整等(deng)因素，工業(ye)品(pin)價格反彈高度(du)將有(you)限。傳統需(xu)(xu)(xu)求(qiu)(qiu)淡(dan)季效(xiao)(xiao)應(ying)還在持續不(bu)(bu)斷地(di)發酵，冬儲效(xiao)(xiao)果不(bu)(bu)佳。雖然數據顯(xian)(xian)示供(gong)應(ying)壓力(li)開始減輕(qing)，但是(shi)目前(qian)處(chu)于鋼鐵需(xu)(xu)(xu)求(qiu)(qiu)淡(dan)季，市場(chang)(chang)成(cheng)交萎縮，下游采購遲遲未能有(you)效(xiao)(xiao)跟進，市場(chang)(chang)信心不(bu)(bu)足，鍍鋅鋼板貿易商(shang)囤(dun)貨現(xian)象也不(bu)(bu)明(ming)顯(xian)(xian)。