鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)是(shi)(shi)為(wei)防止鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)表面遭受腐(fu)蝕，延長(chang)其(qi)(qi)使(shi)用(yong)(yong)(yong)壽命(ming)，在(zai)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)表面涂(tu)以(yi)一層金(jin)(jin)屬(shu)鋅(xin)(xin)，這(zhe)種涂(tu)鋅(xin)(xin)的(de)(de)(de)(de)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)稱為(wei)鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)也是(shi)(shi)用(yong)(yong)(yong)熱(re)浸(jin)法制(zhi)造，但(dan)在(zai)出(chu)槽(cao)后，立(li)即把(ba)它(ta)加熱(re)到(dao)500℃左(zuo)右，使(shi)其(qi)(qi)生(sheng)成(cheng)鋅(xin)(xin)和(he)鐵的(de)(de)(de)(de)合(he)(he)(he)(he)金(jin)(jin)被(bei)膜。這(zhe)種鍍(du)(du)(du)鋅(xin)(xin)卷(juan)具(ju)(ju)有(you)(you)良(liang)好的(de)(de)(de)(de)涂(tu)料(liao)的(de)(de)(de)(de)密著性(xing)(xing)和(he)焊(han)(han)接性(xing)(xing)。合(he)(he)(he)(he)金(jin)(jin)化(hua)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。這(zhe)種鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)也是(shi)(shi)用(yong)(yong)(yong)熱(re)浸(jin)法制(zhi)造，但(dan)在(zai)出(chu)槽(cao)后，立(li)即把(ba)它(ta)加熱(re)到(dao)500℃左(zuo)右，使(shi)其(qi)(qi)生(sheng)成(cheng)鋅(xin)(xin)和(he)鐵的(de)(de)(de)(de)合(he)(he)(he)(he)金(jin)(jin)被(bei)膜。這(zhe)種鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)具(ju)(ju)有(you)(you)良(liang)好的(de)(de)(de)(de)涂(tu)料(liao)的(de)(de)(de)(de)密著性(xing)(xing)和(he)焊(han)(han)接性(xing)(xing)。熱(re)浸(jin)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。將薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)浸(jin)入熔解的(de)(de)(de)(de)鋅(xin)(xin)槽(cao)中，使(shi)其(qi)(qi)表面粘附一層鋅(xin)(xin)的(de)(de)(de)(de)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。目(mu)前主要采用(yong)(yong)(yong)連續鍍(du)(du)(du)鋅(xin)(xin)工(gong)藝(yi)生(sheng)產，即把(ba)成(cheng)卷(juan)的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)連續浸(jin)在(zai)熔解有(you)(you)鋅(xin)(xin)的(de)(de)(de)(de)鍍(du)(du)(du)槽(cao)中制(zhi)成(cheng)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。合(he)(he)(he)(he)金(jin)(jin)、復合(he)(he)(he)(he)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。它(ta)是(shi)(shi)用(yong)(yong)(yong)鋅(xin)(xin)和(he)其(qi)(qi)他(ta)金(jin)(jin)屬(shu)如鉛、鋅(xin)(xin)制(zhi)成(cheng)合(he)(he)(he)(he)金(jin)(jin)乃至復合(he)(he)(he)(he)鍍(du)(du)(du)成(cheng)的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。這(zhe)種鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)既(ji)具(ju)(ju)有(you)(you)防銹性(xing)(xing)能，又有(you)(you)良(liang)好的(de)(de)(de)(de)涂(tu)裝性(xing)(xing)能。

永川鍍鋅近期鋼價延續低迷，隨著通國規模的酷暑和旱季到來，熱鍍鋅卷板價格商場逐漸進入需要旺季，海內鋼鐵商場或將窄幅調整。在決策層兩手抓制度措施落實狀況、貨銀本位度定向寬松力度加大的直觀層面利好牽動下，商場信念逐漸趨穩，短期海內鋼價無望止跌企穩;另一上面，以后鋼價殺跌電能有余，而上漲也仍然屏障重重。鍍鋅批發熱鍍(du)鋅卷板價格價錢或將長期在于低位運(yun)行場面(mian)。

鍍(du)(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)是為防止鋼板(ban)(ban)表(biao)(biao)面(mian)遭(zao)受(shou)腐蝕，延長(chang)其使(shi)(shi)用(yong)壽命，在鋼板(ban)(ban)表(biao)(biao)面(mian)涂(tu)以一層金屬鋅(xin)(xin)(xin)，這(zhe)種涂(tu)鋅(xin)(xin)(xin)的(de)(de)(de)薄(bo)鋼板(ban)(ban)稱(cheng)為鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)。按生產(chan)及加(jia)工(gong)方法可分為以下幾類：熱(re)浸鍍(du)(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)。將薄(bo)鋼板(ban)(ban)浸入熔(rong) 微商貨源解的(de)(de)(de)鋅(xin)(xin)(xin)槽(cao)中，使(shi)(shi)其表(biao)(biao)面(mian)粘附一層鋅(xin)(xin)(xin)的(de)(de)(de)薄(bo)鋼板(ban)(ban)。目前主要采(cai)用(yong)連續鍍(du)(du)鋅(xin)(xin)(xin)工(gong)藝生產(chan)，即把(ba)成(cheng)卷的(de)(de)(de)鋼板(ban)(ban)連續浸在熔(rong)解有(you)(you)鋅(xin)(xin)(xin)的(de)(de)(de)鍍(du)(du)槽(cao)中制(zhi)成(cheng)鍍(du)(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)；合金化鍍(du)(du)鋅(xin)(xin)(xin)鋼板(ban)(ban)。這(zhe)種鋼板(ban)(ban)也是用(yong)熱(re)浸法制(zhi)造，但在出槽(cao)后，立即把(ba)它加(jia)熱(re)到５００℃左右，使(shi)(shi)其生成(cheng)鋅(xin)(xin)(xin)和(he)鐵的(de)(de)(de)合金被膜。這(zhe)種鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)具有(you)(you)良好的(de)(de)(de)涂(tu)料的(de)(de)(de)密著性和(he)焊(han)接性。

隨著(zhu)鋼結構在(zai)建筑材料(liao)中的(de)(de)興起，越(yue)來越(yue)多的(de)(de)人選擇使用(yong)鋼結構樓承(cheng)(cheng)(cheng)(cheng)板了，鋼結構構件工(gong)廠(chang)產(chan)業化生產(chan)大大縮(suo)短了工(gong)程工(gong)期(qi)，而樓板的(de)(de)施工(gong)方法卻成為影(ying)響工(gong)期(qi)的(de)(de)重(zhong)要因素。采(cai)用(yong)那(nei)一(yi)(yi)(yi)代(dai)樓承(cheng)(cheng)(cheng)(cheng)板對于樓板的(de)(de)耐火性能(neng)也(ye)有區別。樓承(cheng)(cheng)(cheng)(cheng)板的(de)(de)厚(hou)(hou)度(du)(du)(du)(du)一(yi)(yi)(yi)般都是(shi)按保險起見設(she)計的(de)(de)比(bi)較厚(hou)(hou)，正常(chang)情況下鋼梁之(zhi)間的(de)(de)跨度(du)(du)(du)(du)在(zai)2m以內樓承(cheng)(cheng)(cheng)(cheng)板厚(hou)(hou)度(du)(du)(du)(du)在(zai)0.75-0.8mm就(jiu)可(ke)以了，2-2.5m樓承(cheng)(cheng)(cheng)(cheng)板厚(hou)(hou)度(du)(du)(du)(du)用(yong)0.8-1.0就(jiu)可(ke)以了，跨度(du)(du)(du)(du)在(zai)3-4米(mi)樓承(cheng)(cheng)(cheng)(cheng)板厚(hou)(hou)度(du)(du)(du)(du)用(yong)1.5mm，超過5m的(de)(de)跨度(du)(du)(du)(du)是(shi)用(yong)臨時支撐，因素就(jiu)是(shi)混(hun)(hun)泥土(tu)澆筑的(de)(de)高度(du)(du)(du)(du)，混(hun)(hun)泥土(tu)澆筑的(de)(de)越(yue)高，樓承(cheng)(cheng)(cheng)(cheng)板所需(xu)要的(de)(de)厚(hou)(hou)度(du)(du)(du)(du)也(ye)就(jiu)越(yue)厚(hou)(hou)，還有一(yi)(yi)(yi)個大家容易忽略的(de)(de)因素就(jiu)是(shi)螺釘的(de)(de)好壞(huai)也(ye)是(shi)決定樓承(cheng)(cheng)(cheng)(cheng)板厚(hou)(hou)度(du)(du)(du)(du)的(de)(de)，螺釘越(yue)好樓承(cheng)(cheng)(cheng)(cheng)板的(de)(de)承(cheng)(cheng)(cheng)(cheng)載力就(jiu)越(yue)強(qiang)。

鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)按(an)用(yong)(yong)(yong)途又(you)可分(fen)為(wei)一般(ban)用(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)、建筑外側板(ban)用(yong)(yong)(yong)、結(jie)構用(yong)(yong)(yong)、瓦壟板(ban)用(yong)(yong)(yong)、拉伸用(yong)(yong)(yong)和深沖(chong)用(yong)(yong)(yong)等鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)。對于一般(ban)防(fang)(fang)保護(hu)用(yong)(yong)(yong)鍍(du)(du)(du)(du)層，可以采用(yong)(yong)(yong)堿性鋅(xin)(xin)(xin)(xin)酸(suan)鹽鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)彩(cai)色(se)鈍(dun)化(hua)工(gong)藝。有時為(wei)了產(chan)品的(de)(de)(de)配色(se)需要，也可以采用(yong)(yong)(yong)藍白色(se)鈍(dun)化(hua)工(gong)藝，比如(ru)軍綠色(se)鈍(dun)化(hua)、黑色(se)鈍(dun)化(hua)等。為(wei)提高鋼(gang)管(guan)(guan)的(de)(de)(de)耐腐蝕(shi)(shi)性能，對一般(ban)鋼(gang)管(guan)(guan)進行(xing)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)。鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)卷(juan)分(fen)熱鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)和電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)兩種(zhong)，熱鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)層厚，電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)成本低，表面不(bu)是很光滑。吹氧焊管(guan)(guan)：用(yong)(yong)(yong)作(zuo)(zuo)煉(lian)鋼(gang)吹氧用(yong)(yong)(yong)管(guan)(guan)，一般(ban)用(yong)(yong)(yong)小口徑的(de)(de)(de)焊接鋼(gang)管(guan)(guan)，規(gui)格由3/8-2寸八種(zhong)。用(yong)(yong)(yong)08、10、15、20或(huo)者195-Q235的(de)(de)(de)鋼(gang)帶(dai)制作(zuo)(zuo)成的(de)(de)(de)，為(wei)了防(fang)(fang)腐蝕(shi)(shi)，有得(de)進行(xing)滲鋁處理(li)。鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)其防(fang)(fang)護(hu)作(zuo)(zuo)用(yong)(yong)(yong)更強，抗腐蝕(shi)(shi)能力強。整個(ge)結(jie)構由鋅(xin)(xin)(xin)(xin)，形成致密的(de)(de)(de)四元結(jie)晶體，此結(jie)晶體在鋼(gang)板(ban)上形成一層屏(ping)障(zhang)， 因而(er)有效的(de)(de)(de)防(fang)(fang)止腐蝕(shi)(shi)因子穿透。 耐腐蝕(shi)(shi)性來自鋅(xin)(xin)(xin)(xin)的(de)(de)(de)障(zhang)礙層保護(hu)功能強。

熱鍍鋅(xin)卷(juan)(juan)板(ban)價(jia)(jia)格行業(ye)統(tong)計數(shu)(shu)(shu)據顯(xian)示，十(shi)一月(yue)國內粗鋼(gang)日均產量為(wei)兩百零九萬噸，環比下(xia)降3.3%，創出今年(nian)以來水平，但是(shi)當(dang)前減產受到季節性(xing)因素支撐，市場(chang)對數(shu)(shu)(shu)據有效(xiao)性(xing)提出質(zhi)疑。鍍鋅(xin)卷(juan)(juan)工(gong)(gong)業(ye)品而言，近期陸續(xu)公布(bu)的重要(yao)數(shu)(shu)(shu)據中性(xing)偏多。但值得注意的是(shi)，同年(nian)十(shi)一月(yue)熱鍍鋅(xin)卷(juan)(juan)板(ban)價(jia)(jia)格工(gong)(gong)業(ye)增(zeng)加值和投資增(zeng)速(su)放緩，進(jin)一步印證(zheng)了國內總需(xu)求乏力，工(gong)(gong)業(ye)復蘇形(xing)勢不容樂觀(guan)。加上未來經(jing)濟結構調整(zheng)等因素，工(gong)(gong)業(ye)品價(jia)(jia)格反彈高(gao)度(du)將(jiang)有限(xian)。傳統(tong)需(xu)求淡季效(xiao)應還(huan)在持續(xu)不斷地發酵，冬儲效(xiao)果(guo)不佳。雖然數(shu)(shu)(shu)據顯(xian)示供應壓(ya)力開始減輕，但是(shi)目(mu)前處于鋼(gang)鐵(tie)需(xu)求淡季，市場(chang)成交萎(wei)縮(suo)，下(xia)游采購遲(chi)遲(chi)未能有效(xiao)跟(gen)進(jin)，市場(chang)信(xin)心不足，鍍鋅(xin)鋼(gang)板(ban)貿易商囤貨現象也(ye)不明(ming)顯(xian)。