熱鍍鋅卷(juan)板(ban)現(xian)貨(huo)(huo)消息：熱鍍鋅產品廣泛用于(yu)建筑、家(jia)電(dian)、車(che)船(chuan)、容器制造業、機電(dian)業等(deng)(deng)，幾乎涉及到(dao)衣食住(zhu)行(xing)各個(ge)領域。近(jin)年來，世(shi)界鍍鋅鋼(gang)板(ban)需求量(liang)不(bu)斷增加，產量(liang)增長也很快，在(zai)(zai)美、日等(deng)(deng)鋼(gang)材(cai)(cai)生產大國，熱鍍鋅鋼(gang)板(ban)在(zai)(zai)鋼(gang)材(cai)(cai)中所占比例已高達13%-15%。 熱鍍鋅卷(juan)板(ban)現(xian)貨(huo)(huo)消息：近(jin)來，汽車(che)行(xing)業越來越重視材(cai)(cai)料的(de)使用壽(shou)命，用涂漆冷軋鋼(gang)板(ban)已不(bu)能滿足耐(nai)(nai)腐(fu)蝕(shi)方面的(de)要求。在(zai)(zai)這(zhe)種情況下，耐(nai)(nai)腐(fu)蝕(shi)性(xing)優良(liang)且成(cheng)本低廉的(de)熱鍍鋅板(ban)開始普遍受到(dao)了汽車(che)廠家(jia)的(de)青睞(lai)。

鍍(du)(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)是(shi)為(wei)(wei)防(fang)止鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)表(biao)面遭受腐(fu)蝕，延(yan)長(chang)其使(shi)(shi)用(yong)壽命，在鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)表(biao)面涂(tu)(tu)以一層金(jin)(jin)屬(shu)鋅(xin)(xin)，這種(zhong)涂(tu)(tu)鋅(xin)(xin)的(de)(de)(de)(de)薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)稱為(wei)(wei)鍍(du)(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)也是(shi)用(yong)熱浸(jin)(jin)法(fa)制(zhi)(zhi)造，但(dan)在出(chu)槽后，立(li)即(ji)把它加熱到500℃左右，使(shi)(shi)其生(sheng)成(cheng)(cheng)鋅(xin)(xin)和(he)(he)鐵的(de)(de)(de)(de)合(he)金(jin)(jin)被膜(mo)。這種(zhong)鍍(du)(du)(du)(du)鋅(xin)(xin)卷具(ju)有(you)良好(hao)的(de)(de)(de)(de)涂(tu)(tu)料的(de)(de)(de)(de)密(mi)著(zhu)性(xing)(xing)和(he)(he)焊接(jie)性(xing)(xing)。合(he)金(jin)(jin)化鍍(du)(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。這種(zhong)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)也是(shi)用(yong)熱浸(jin)(jin)法(fa)制(zhi)(zhi)造，但(dan)在出(chu)槽后，立(li)即(ji)把它加熱到500℃左右，使(shi)(shi)其生(sheng)成(cheng)(cheng)鋅(xin)(xin)和(he)(he)鐵的(de)(de)(de)(de)合(he)金(jin)(jin)被膜(mo)。這種(zhong)鍍(du)(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)(ban)具(ju)有(you)良好(hao)的(de)(de)(de)(de)涂(tu)(tu)料的(de)(de)(de)(de)密(mi)著(zhu)性(xing)(xing)和(he)(he)焊接(jie)性(xing)(xing)。熱浸(jin)(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。將薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)浸(jin)(jin)入熔解的(de)(de)(de)(de)鋅(xin)(xin)槽中(zhong)，使(shi)(shi)其表(biao)面粘附一層鋅(xin)(xin)的(de)(de)(de)(de)薄(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。目(mu)前(qian)主要采用(yong)連(lian)續(xu)鍍(du)(du)(du)(du)鋅(xin)(xin)工(gong)藝生(sheng)產，即(ji)把成(cheng)(cheng)卷的(de)(de)(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)連(lian)續(xu)浸(jin)(jin)在熔解有(you)鋅(xin)(xin)的(de)(de)(de)(de)鍍(du)(du)(du)(du)槽中(zhong)制(zhi)(zhi)成(cheng)(cheng)鍍(du)(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。合(he)金(jin)(jin)、復合(he)鍍(du)(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。它是(shi)用(yong)鋅(xin)(xin)和(he)(he)其他金(jin)(jin)屬(shu)如鉛(qian)、鋅(xin)(xin)制(zhi)(zhi)成(cheng)(cheng)合(he)金(jin)(jin)乃至復合(he)鍍(du)(du)(du)(du)成(cheng)(cheng)的(de)(de)(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)。這種(zhong)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)既具(ju)有(you)防(fang)銹性(xing)(xing)能，又(you)有(you)良好(hao)的(de)(de)(de)(de)涂(tu)(tu)裝(zhuang)性(xing)(xing)能。

貴陽鍍鋅管重慶樓承板的鍍鋅量沒有一個具體的標準，制作壓型鋼板的冷軋鋼卷須連續熱浸鍍鋅（或鍍鋁鋅），鍍（鋁）鋅量視設計要求而定。鍍鋅管價格樓承板(ban)(ban)(ban)(ban)用(yong)壓型(xing)(xing)鋼(gang)(gang)板(ban)(ban)(ban)(ban)宜(yi)選擇熱(re)(re)浸(jin)鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)。不允(yun)許使(shi)用(yong)電(dian)鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)，電(dian)鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)僅在基材表面形成保護層(ceng)，防(fang)腐(fu)能力(li)有限。目前市(shi)場上有鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)（鍍(du)(du)層(ceng)含鋁(lv)(lv)5%或55%），在酸性環(huan)境下(xia)(xia)的(de)防(fang)腐(fu)效果由于(yu)熱(re)(re)浸(jin)鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)，但(dan)在混凝土的(de)堿性條件下(xia)(xia)，鍍(du)(du)鋁(lv)(lv)鋅的(de)防(fang)腐(fu)蝕性能低(di)于(yu)熱(re)(re)浸(jin)鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)，且鋁(lv)(lv)會和混凝土發生反應，并降(jiang)低(di)混凝土與鋼(gang)(gang)板(ban)(ban)(ban)(ban)的(de)粘結性能。因此參考國外規范，及國內外工程(cheng)，行家壓型(xing)(xing)鋼(gang)(gang)板(ban)(ban)(ban)(ban)不建議使(shi)用(yong)鍍(du)(du)鋁(lv)(lv)鋅鋼(gang)(gang)板(ban)(ban)(ban)(ban)。

重(zhong)慶(qing)鍍(du)鋅(xin)卷(juan)(juan)主要有(you)(you)：脫落、劃傷、鈍化斑(ban)、鋅(xin)粒、厚(hou)邊、氣刀(dao)條痕、氣刀(dao)刮痕、露鋼(gang)、夾雜、機械損傷、鋼(gang)基性能不(bu)(bu)良、浪(lang)邊、瓢(piao)曲、尺寸不(bu)(bu)合(he)、壓(ya)印、鋅(xin)層厚(hou)度不(bu)(bu)合(he)、輥印等(deng)。鋅(xin)層脫落的(de)主要原因(yin)有(you)(you)：表面(mian)氧(yang)化、有(you)(you)硅化合(he)物、冷扎乳化液(ye)太臟、NOF段(duan)氧(yang)化氣氛(fen)及保護氣體露點(dian)太高、空燃(ran)比不(bu)(bu)合(he)理(li)、氫氣流量偏(pian)低(di)(di)、爐(lu)(lu)子(zi)有(you)(you)氧(yang)滲入，帶(dai)鋼(gang)入鍋溫(wen)度偏(pian)低(di)(di)，RWP段(duan)爐(lu)(lu)壓(ya)偏(pian)低(di)(di)及爐(lu)(lu)門吸風、NOF段(duan)爐(lu)(lu)溫(wen)偏(pian)低(di)(di)，油(you)脂蒸發不(bu)(bu)盡、鋅(xin)鍋鋁含量偏(pian)低(di)(di)、機組速度太快、還原不(bu)(bu)充分(fen)、鋅(xin)液(ye)中停留時(shi)間(jian)太短、鍍(du)層偏(pian)厚(hou)。白銹和(he)黑斑(ban)產(chan)生的(de)原因(yin)有(you)(you)：黑斑(ban)是白銹進一步(bu)氧(yang)化形(xing)成的(de)鍍(du)鋅(xin)板(ban)的(de)特點(dian)與(yu)用途。鍍(du)鋅(xin)卷(juan)(juan)板(ban)是以熱(re)軋鋼(gang)帶(dai)或冷軋鋼(gang)帶(dai)為(wei)基板(ban)，經過(guo)連(lian)續(xu)熱(re)浸(jin)鍍(du)鋅(xin)工(gong)藝而生產(chan)出來的(de)， 產(chan)品具有(you)(you)耐腐(fu)蝕(shi)強(qiang)、 表面(mian)質(zhi)量好(hao)、有(you)(you)利(li)于深加工(gong)、經濟實用等(deng)特點(dian)。

鍍(du)鋅板選(xuan)擇(ze)(ze)要(yao)(yao)(yao)(yao)注(zhu)重(zhong)(zhong)(zhong)的(de)(de)(de)(de)幾個要(yao)(yao)(yao)(yao)點，工(gong)業(ye)(ye)企業(ye)(ye)的(de)(de)(de)(de)客(ke)戶選(xuan)擇(ze)(ze)專(zhuan)用工(gong)業(ye)(ye)原料，要(yao)(yao)(yao)(yao)注(zhu)重(zhong)(zhong)(zhong)從四(si)個標(biao)(biao)準。一是(shi)(shi)要(yao)(yao)(yao)(yao)注(zhu)重(zhong)(zhong)(zhong)品牌來(lai)進(jin)行選(xuan)擇(ze)(ze)，因為鍍(du)鋅技術(shu)的(de)(de)(de)(de)要(yao)(yao)(yao)(yao)求(qiu)嚴格，所(suo)以有的(de)(de)(de)(de)基(ji)礎(chu)，當然產品質(zhi)(zhi)量(liang)(liang)與技術(shu)標(biao)(biao)準都會更可靠(kao)，都會有好(hao)的(de)(de)(de)(de)專(zhuan)業(ye)(ye)標(biao)(biao)準。二(er)是(shi)(shi)要(yao)(yao)(yao)(yao)注(zhu)重(zhong)(zhong)(zhong)產品本(ben)身的(de)(de)(de)(de)鍍(du)層質(zhi)(zhi)量(liang)(liang)，鍍(du)層一要(yao)(yao)(yao)(yao)靠(kao)技術(shu)，二(er)要(yao)(yao)(yao)(yao)靠(kao)純(chun)度，所(suo)以從產品表(biao)面來(lai)看質(zhi)(zhi)量(liang)(liang)，這是(shi)(shi)基(ji)本(ben)也是(shi)(shi)重(zhong)(zhong)(zhong)要(yao)(yao)(yao)(yao)的(de)(de)(de)(de)一個標(biao)(biao)準。三是(shi)(shi)要(yao)(yao)(yao)(yao)看基(ji)礎(chu)材料。鍍(du)鋅板基(ji)礎(chu)金屬材料的(de)(de)(de)(de)質(zhi)(zhi)量(liang)(liang)，與成品鍍(du)鋅板的(de)(de)(de)(de)質(zhi)(zhi)量(liang)(liang)與耐用性密切相(xiang)關，所(suo)以在進(jin)行產品選(xuan)擇(ze)(ze)的(de)(de)(de)(de)時候，需要(yao)(yao)(yao)(yao)注(zhu)重(zhong)(zhong)(zhong)這個細節，而材料的(de)(de)(de)(de)提供，就是(shi)(shi)對于工(gong)業(ye)(ye)生產來(lai)說(shuo)，有基(ji)礎(chu)條件。四(si)是(shi)(shi)要(yao)(yao)(yao)(yao)注(zhu)重(zhong)(zhong)(zhong)價格對比，不是(shi)(shi)好(hao)的(de)(de)(de)(de)就是(shi)(shi)貴的(de)(de)(de)(de)，但是(shi)(shi)如果廉價的(de)(de)(de)(de)把產品，那是(shi)(shi)不可信的(de)(de)(de)(de)。

首先，在(zai)(zai)鋼結構(gou)樓層板(ban)(ban)(ban)(ban)(ban)(ban)中要(yao)(yao)達到耐(nai)火1.5小時，總(zong)的(de)來說可以選擇開(kai)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)、縮口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)、閉(bi)(bi)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)三大(da)類。規范上(shang)混凝土要(yao)(yao)高(gao)于開(kai)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)肋頂之上(shang)80mm，并且板(ban)(ban)(ban)(ban)(ban)(ban)底(di)需(xu)配置板(ban)(ban)(ban)(ban)(ban)(ban)底(di)受力(li)筋(jin)。還有一種(zhong)就是(shi)再(zai)開(kai)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)底(di)部(bu)刷防(fang)火涂料，涂料厚度大(da)于等于15,這樣(yang)的(de)話，只(zhi)要(yao)(yao)達到構(gou)造(zao)要(yao)(yao)求高(gao)于肋頂5公分就可以了。而(er)縮口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)和閉(bi)(bi)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)，只(zhi)需(xu)要(yao)(yao)總(zong)的(de)樓板(ban)(ban)(ban)(ban)(ban)(ban)厚度大(da)于等于110即可，但(dan)是(shi)縮口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)雖然在(zai)(zai)防(fang)火方面比開(kai)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)要(yao)(yao)好。但(dan)是(shi)底(di)部(bu)還是(shi)需(xu)要(yao)(yao)加(jia)板(ban)(ban)(ban)(ban)(ban)(ban)底(di)受力(li)筋(jin)，而(er)閉(bi)(bi)口(kou)板(ban)(ban)(ban)(ban)(ban)(ban)則不(bu)需(xu)要(yao)(yao)。