鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)按用(yong)(yong)(yong)(yong)(yong)途又(you)可(ke)分為(wei)一(yi)般用(yong)(yong)(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)(yong)(yong)、建筑外側板(ban)用(yong)(yong)(yong)(yong)(yong)、結構用(yong)(yong)(yong)(yong)(yong)、瓦(wa)壟板(ban)用(yong)(yong)(yong)(yong)(yong)、拉(la)伸用(yong)(yong)(yong)(yong)(yong)和(he)深沖用(yong)(yong)(yong)(yong)(yong)等鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)。對于一(yi)般防(fang)(fang)(fang)保(bao)護(hu)(hu)用(yong)(yong)(yong)(yong)(yong)鍍(du)層(ceng)，可(ke)以采用(yong)(yong)(yong)(yong)(yong)堿性(xing)鋅(xin)(xin)(xin)(xin)(xin)酸鹽(yan)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)彩色(se)(se)鈍化(hua)工藝(yi)。有時為(wei)了(le)產品的(de)配色(se)(se)需要，也可(ke)以采用(yong)(yong)(yong)(yong)(yong)藍白(bai)色(se)(se)鈍化(hua)工藝(yi)，比如軍綠色(se)(se)鈍化(hua)、黑色(se)(se)鈍化(hua)等。為(wei)提高鋼(gang)管(guan)(guan)的(de)耐腐(fu)蝕(shi)性(xing)能(neng)，對一(yi)般鋼(gang)管(guan)(guan)進行鍍(du)鋅(xin)(xin)(xin)(xin)(xin)。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)卷分熱鍍(du)鋅(xin)(xin)(xin)(xin)(xin)和(he)電鍍(du)鋅(xin)(xin)(xin)(xin)(xin)兩種，熱鍍(du)鋅(xin)(xin)(xin)(xin)(xin)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層(ceng)厚，電鍍(du)鋅(xin)(xin)(xin)(xin)(xin)成(cheng)本低，表面(mian)不是很光滑。吹(chui)氧(yang)焊(han)管(guan)(guan)：用(yong)(yong)(yong)(yong)(yong)作煉鋼(gang)吹(chui)氧(yang)用(yong)(yong)(yong)(yong)(yong)管(guan)(guan)，一(yi)般用(yong)(yong)(yong)(yong)(yong)小口(kou)徑的(de)焊(han)接鋼(gang)管(guan)(guan)，規(gui)格由3/8-2寸八種。用(yong)(yong)(yong)(yong)(yong)08、10、15、20或者195-Q235的(de)鋼(gang)帶(dai)制作成(cheng)的(de)，為(wei)了(le)防(fang)(fang)(fang)腐(fu)蝕(shi)，有得進行滲鋁處理(li)。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)其防(fang)(fang)(fang)護(hu)(hu)作用(yong)(yong)(yong)(yong)(yong)更強(qiang)，抗(kang)腐(fu)蝕(shi)能(neng)力強(qiang)。整(zheng)個結構由鋅(xin)(xin)(xin)(xin)(xin)，形成(cheng)致密的(de)四元結晶體(ti)，此結晶體(ti)在鋼(gang)板(ban)上形成(cheng)一(yi)層(ceng)屏(ping)障， 因而有效的(de)防(fang)(fang)(fang)止(zhi)腐(fu)蝕(shi)因子穿透。 耐腐(fu)蝕(shi)性(xing)來自鋅(xin)(xin)(xin)(xin)(xin)的(de)障礙層(ceng)保(bao)護(hu)(hu)功能(neng)強(qiang)。

熱鍍鋅鋼管價格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。長春酒鋼熱鍍鋅鋼管冷(leng)卻速度(du)(du)越(yue)快(kuai)鋅(xin)花(hua)越(yue)小(xiao)，冷(leng)卻速度(du)(du)越(yue)慢(man)鋅(xin)花(hua)越(yue)大(da)。熱鍍鋅(xin)帶鋼(gang)在我國(guo)市場一(yi)直是緊(jin)缺品(pin)種。從20世紀90年代中期以來，每年都(dou)要從國(guo)外進口80-100萬(wan)t左右(you)。隨著(zhu)國(guo)內經濟的發(fa)(fa)展，尤其是汽車、家(jia)電(dian)及(ji)建筑業(ye)的發(fa)(fa)展，對鍍鋅(xin)帶鋼(gang)的需求量也大(da)大(da)增加。

樓(lou)承(cheng)板(ban)鍍(du)(du)(du)(du)鋅(xin)首要起到防(fang)腐的(de)效(xiao)果(guo)，按標準組(zu)合(he)(he)樓(lou)板(ban)與非組(zu)合(he)(he)樓(lou)板(ban)壓型鋼板(ban)應選用(yong)(yong)(yong)(yong)熱(re)鍍(du)(du)(du)(du)鋅(xin)，不該(gai)選用(yong)(yong)(yong)(yong)電鍍(du)(du)(du)(du)鋅(xin)鋼板(ban)，其雙(shuang)面鍍(du)(du)(du)(du)鋅(xin)層總含量(liang)(liang)(liang)要滿足(zu)在(zai)使用(yong)(yong)(yong)(yong)期間不致銹損的(de)要求(qiu)。當(dang)(dang)作為非組(zu)合(he)(he)樓(lou)承(cheng)板(ban)時(shi)(shi)，鍍(du)(du)(du)(du)鋅(xin)層含量(liang)(liang)(liang)可選用(yong)(yong)(yong)(yong)較(jiao)低值;當(dang)(dang)為組(zu)合(he)(he)樓(lou)承(cheng)板(ban)時(shi)(shi)，鍍(du)(du)(du)(du)鋅(xin)層含量(liang)(liang)(liang)不該(gai)小于(yu)(yu)150g/m2。當(dang)(dang)為組(zu)合(he)(he)樓(lou)板(ban)且使用(yong)(yong)(yong)(yong)環境條件(jian)較(jiao)為惡劣時(shi)(shi)，鍍(du)(du)(du)(du)鋅(xin)層含量(liang)(liang)(liang)應選用(yong)(yong)(yong)(yong)上(shang)限值或更高值。更高的(de)鍍(du)(du)(du)(du)鋅(xin)要求(qiu)，如(ru)雙(shuang)面鍍(du)(du)(du)(du)鋅(xin)量(liang)(liang)(liang)為300g/m2、350g/m2或鍍(du)(du)(du)(du)鋁鋅(xin)(5%鋁)275g/m2、300g/m2等(deng)，較(jiao)高的(de)鍍(du)(du)(du)(du)層量(liang)(liang)(liang)使組(zu)合(he)(he)樓(lou)板(ban)有更長(chang)耐(nai)久(jiu)性，同等(deng)量(liang)(liang)(liang)的(de)鍍(du)(du)(du)(du)鋁鋅(xin)的(de)防(fang)銹蝕才能(neng)大約兩倍于(yu)(yu)一(yi)般(ban)熱(re)鍍(du)(du)(du)(du)鋅(xin)。鍍(du)(du)(du)(du)鋅(xin)量(liang)(liang)(liang)也不是越厚(hou)越好(hao)，當(dang)(dang)鍍(du)(du)(du)(du)鋅(xin)量(liang)(liang)(liang)較(jiao)厚(hou)時(shi)(shi)，抗剪連(lian)接件(jian)栓釘的(de)焊(han)(han)接質量(liang)(liang)(liang)就很難(nan)保證，焊(han)(han)接時(shi)(shi)，宜選用(yong)(yong)(yong)(yong)局部除(chu)鋅(xin)處(chu)理措施。

樓承板在目前的(de)(de)建(jian)筑(zhu)施工行業(ye)中使(shi)用非(fei)(fei)常廣(guang)泛，深受用戶的(de)(de)重(zhong)(zhong)(zhong)視和(he)(he)(he)關(guan)注，在大(da)型超市、體育(yu)場(chang)館、鋼(gang)結構(gou)辦公室、機(ji)場(chang)候機(ji)樓等地方都有它(ta)的(de)(de)存在，也正因(yin)此它(ta)的(de)(de)質量(liang)水(shui)平(ping)(ping)一直在提升狀態。對于市場(chang)上廣(guang)大(da)的(de)(de)消(xiao)費者以及建(jian)筑(zhu)施工廠(chang)家來說，有效的(de)(de)提升自身使(shi)用的(de)(de)建(jian)筑(zhu)材料(liao)產(chan)(chan)品(pin)(pin)的(de)(de)質量(liang)水(shui)平(ping)(ping)是(shi)(shi)非(fei)(fei)常的(de)(de)關(guan)鍵和(he)(he)(he)重(zhong)(zhong)(zhong)要的(de)(de)，對于建(jian)筑(zhu)活(huo)動的(de)(de)進(jin)(jin)行有著非(fei)(fei)常積極重(zhong)(zhong)(zhong)要的(de)(de)作用和(he)(he)(he)影響(xiang)，這(zhe)一點對于消(xiao)費者來說是(shi)(shi)非(fei)(fei)常的(de)(de)關(guan)鍵和(he)(he)(he)重(zhong)(zhong)(zhong)要的(de)(de)。在日常的(de)(de)生產(chan)(chan)加(jia)工過程(cheng)中，不斷(duan)的(de)(de)進(jin)(jin)行生產(chan)(chan)加(jia)工技(ji)術水(shui)平(ping)(ping)的(de)(de)提升和(he)(he)(he)發(fa)展對于廣(guang)大(da)的(de)(de)生產(chan)(chan)加(jia)工廠(chang)家有著重(zhong)(zhong)(zhong)要的(de)(de)影響(xiang)，對于樓承板產(chan)(chan)品(pin)(pin)的(de)(de)質量(liang)水(shui)平(ping)(ping)也有著非(fei)(fei)常關(guan)鍵的(de)(de)影響(xiang)，這(zhe)是(shi)(shi)因(yin)為技(ji)術的(de)(de)進(jin)(jin)步能夠提高(gao)產(chan)(chan)品(pin)(pin)的(de)(de)使(shi)用性能，保證了質量(liang)水(shui)平(ping)(ping)的(de)(de)提升。

近期鋼(gang)(gang)價延續低(di)迷，隨(sui)著通國規模的(de)酷暑和旱季到來，熱(re)鍍鋅卷(juan)板(ban)(ban)價格商場逐漸進入需要旺季，海(hai)內鋼(gang)(gang)鐵(tie)商場或將窄幅調整。在(zai)決策(ce)層兩手抓制度措施落實狀(zhuang)況、貨(huo)銀本位(wei)度定(ding)向寬松力度加(jia)大的(de)直觀層面(mian)利好牽動(dong)下，商場信念逐漸趨(qu)穩，短期海(hai)內鋼(gang)(gang)價無望止跌(die)企(qi)穩;另一上面(mian)，以后鋼(gang)(gang)價殺跌(die)電(dian)能有余，而上漲(zhang)也仍然屏障重(zhong)重(zhong)。熱(re)鍍鋅卷(juan)板(ban)(ban)價格價錢或將長期在(zai)于(yu)低(di)位(wei)運行場面(mian)。