C型鋼批發鍍鋅帶鋼的鋅層特性 電鍍鋅層是不能形成鋅花的，熱鍍鋅層則有鋅花，其形成過程如下：當鍍鋅帶從鋅鍋出來后，經氣刀的噴吹，大量鋅液被吹回鋅鍋，這時帶鋼表面還有純鋅層，呈液 態附在鋼板表面，在鋼板表面形成大量結晶核，隨著鋼板上升冷卻，使結晶核慢慢長成鋅花。邛崍攀鋼C型鋼冷卻速(su)度(du)越(yue)(yue)快鋅花越(yue)(yue)小(xiao)，冷卻速(su)度(du)越(yue)(yue)慢(man)鋅花越(yue)(yue)大(da)(da)。熱鍍(du)鋅帶鋼(gang)在我國市場一直(zhi)是緊缺(que)品種(zhong)。從20世紀(ji)90年代中(zhong)期以來，每年都要(yao)從國外(wai)進口80-100萬(wan)t左(zuo)右。隨著國內經濟(ji)的發展，尤其是汽車、家電(dian)及建筑業的發展，對鍍(du)鋅帶鋼(gang)的需求量(liang)也大(da)(da)大(da)(da)增加。

實現(xian)了(le)機械化生(sheng)產，有利于鋼筋(jin)(jin)排(pai)列間距均勻、混凝土保護層厚(hou)度一(yi)致，提高(gao)了(le)樓(lou)板的(de)施(shi)工(gong)(gong)(gong)質(zhi)量。裝(zhuang)配(pei)式(shi)鋼筋(jin)(jin)桁架樓(lou)承板可(ke)顯著減少現(xian)場鋼筋(jin)(jin)綁扎工(gong)(gong)(gong)程(cheng)量，加快施(shi)工(gong)(gong)(gong)進(jin)度，增加施(shi)工(gong)(gong)(gong)保證，實現(xian)文明(ming)施(shi)工(gong)(gong)(gong)。裝(zhuang)配(pei)式(shi)模板和(he)連接(jie)件拆裝(zhuang)方(fang)便，可(ke)多次重復利用，節約鋼材，符合國家(jia)節能(neng)(neng)環保的(de)要求。鋼構自主研發的(de)產品配(pei)套自動化生(sheng)產設備，大(da)大(da)提高(gao)了(le)勞(lao)動生(sheng)產率，有效降低了(le)產品成本，并(bing)編(bian)制(zhi)了(le)產品生(sheng)產企(qi)業標準、設計(ji)手(shou)(shou)冊和(he)節點構造圖(tu)集以及施(shi)工(gong)(gong)(gong)手(shou)(shou)冊。并(bing)經過(guo)多項工(gong)(gong)(gong)程(cheng)應用，各(ge)項性(xing)能(neng)(neng)可(ke)以滿足(zu)現(xian)澆(jiao)鋼筋(jin)(jin)混凝土樓(lou)板承載力和(he)變形的(de)要求。

鍍(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)是為防止(zhi)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)表面遭受(shou)腐蝕，延(yan)長其使(shi)(shi)用(yong)壽命，在(zai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)表面涂(tu)以一(yi)層(ceng)金(jin)(jin)屬(shu)鋅(xin)(xin)，這(zhe)種(zhong)涂(tu)鋅(xin)(xin)的薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)稱(cheng)為鍍(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)也(ye)是用(yong)熱浸(jin)(jin)法制(zhi)造(zao)(zao)，但在(zai)出槽(cao)后，立即把它加熱到500℃左(zuo)(zuo)右，使(shi)(shi)其生(sheng)成(cheng)(cheng)(cheng)鋅(xin)(xin)和鐵的合(he)金(jin)(jin)被(bei)膜(mo)。這(zhe)種(zhong)鍍(du)鋅(xin)(xin)卷具(ju)有(you)(you)(you)良好(hao)的涂(tu)料(liao)的密著性(xing)(xing)(xing)和焊接(jie)性(xing)(xing)(xing)。合(he)金(jin)(jin)化鍍(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。這(zhe)種(zhong)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)也(ye)是用(yong)熱浸(jin)(jin)法制(zhi)造(zao)(zao)，但在(zai)出槽(cao)后，立即把它加熱到500℃左(zuo)(zuo)右，使(shi)(shi)其生(sheng)成(cheng)(cheng)(cheng)鋅(xin)(xin)和鐵的合(he)金(jin)(jin)被(bei)膜(mo)。這(zhe)種(zhong)鍍(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)(ban)具(ju)有(you)(you)(you)良好(hao)的涂(tu)料(liao)的密著性(xing)(xing)(xing)和焊接(jie)性(xing)(xing)(xing)。熱浸(jin)(jin)鍍(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。將薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)浸(jin)(jin)入熔解的鋅(xin)(xin)槽(cao)中，使(shi)(shi)其表面粘附一(yi)層(ceng)鋅(xin)(xin)的薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。目前(qian)主要采用(yong)連續鍍(du)鋅(xin)(xin)工藝生(sheng)產，即把成(cheng)(cheng)(cheng)卷的鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)連續浸(jin)(jin)在(zai)熔解有(you)(you)(you)鋅(xin)(xin)的鍍(du)槽(cao)中制(zhi)成(cheng)(cheng)(cheng)鍍(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。合(he)金(jin)(jin)、復(fu)合(he)鍍(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。它是用(yong)鋅(xin)(xin)和其他金(jin)(jin)屬(shu)如鉛、鋅(xin)(xin)制(zhi)成(cheng)(cheng)(cheng)合(he)金(jin)(jin)乃至復(fu)合(he)鍍(du)成(cheng)(cheng)(cheng)的鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。這(zhe)種(zhong)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)既具(ju)有(you)(you)(you)防銹性(xing)(xing)(xing)能(neng)，又(you)有(you)(you)(you)良好(hao)的涂(tu)裝性(xing)(xing)(xing)能(neng)。

我國建(jian)(jian)筑業中，噪聲污染問題久為人(ren)(ren)們所詬(gou)病。輕(qing)(qing)型(xing)樓承(cheng)板(ban)的應用(yong)使得土建(jian)(jian)建(jian)(jian)筑物局面(mian)被打破(po)，集(ji)環境破(po)壞(huai)及污染少(shao)、材料回收(shou)和利用(yong)率高(gao)、符合可持續發(fa)(fa)展要求(qiu)等(deng)眾(zhong)多(duo)(duo)優點于一(yi)身的樓承(cheng)板(ban)建(jian)(jian)筑應運而(er)生，逐步被人(ren)(ren)們所接受。輕(qing)(qing)型(xing)樓承(cheng)板(ban)是(shi)近(jin)十年來發(fa)(fa)展較快(kuai)的領(ling)域(yu)，在(zai)采用(yong)輕(qing)(qing)型(xing)樓承(cheng)板(ban)占非(fei)住宅建(jian)(jian)筑投資的50%以上。這種結構工(gong)業化(hua)(hua)、商品化(hua)(hua)程度高(gao)，施工(gong)快(kuai)，綜合效(xiao)益高(gao)，市場需求(qiu)量(liang)很大(da)，已(yi)引起(qi)結構設計人(ren)(ren)員(yuan)認識。樓承(cheng)板(ban)的研(yan)究開發(fa)(fa)已(yi)在(zai)各地(di)試點，是(shi)輕(qing)(qing)鋼發(fa)(fa)展的一(yi)個(ge)重要方向，目前已(yi)經有多(duo)(duo)種的低層(ceng)、多(duo)(duo)層(ceng)和高(gao)層(ceng)的設計方案和實例(li)。

樓承板(ban)在建筑當中(zhong)已(yi)經被(bei)廣泛的(de)(de)(de)使用，對(dui)(dui)于(yu)此種設備的(de)(de)(de)標(biao)準化和(he)工廠(chang)化的(de)(de)(de)程(cheng)度已(yi)經是越來(lai)越高了(le)，那么它(ta)們(men)現(xian)在已(yi)經發(fa)展(zhan)(zhan)成(cheng)為(wei)了(le)產業化的(de)(de)(de)趨勢，那么在未(wei)來(lai)對(dui)(dui)于(yu)桁(heng)架樓承板(ban)來(lai)說，應該有好(hao)的(de)(de)(de)市場發(fa)展(zhan)(zhan)前景(jing)，現(xian)在我(wo)(wo)們(men)就(jiu)要來(lai)說一(yi)說鋼(gang)筋桁(heng)架樓承板(ban)在使用過(guo)程(cheng)當中(zhong)如何進行防腐的(de)(de)(de)操作。如今對(dui)(dui)于(yu)我(wo)(wo)們(men)國(guo)家的(de)(de)(de)建筑鋼(gang)結構(gou)來(lai)說，它(ta)們(men)的(de)(de)(de)發(fa)展(zhan)(zhan)趨勢是特別好(hao)的(de)(de)(de)，它(ta)們(men)也大大的(de)(de)(de)推動(dong)了(le)我(wo)(wo)們(men)國(guo)家的(de)(de)(de)冶金行業的(de)(de)(de)發(fa)展(zhan)(zhan)，現(xian)在對(dui)(dui)于(yu)建筑行業和(he)冶金行業已(yi)經緊緊的(de)(de)(de)聯系在一(yi)起了(le)。對(dui)(dui)于(yu)未(wei)來(lai)我(wo)(wo)們(men)的(de)(de)(de)鋼(gang)筋桁(heng)架樓承板(ban)將會(hui)處(chu)于(yu)一(yi)個新的(de)(de)(de)發(fa)展(zhan)(zhan)時期。