熱浸(jin)(jin)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)將薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)浸(jin)(jin)入熔解的鋅(xin)(xin)(xin)槽中，使其表面(mian)粘(zhan)附(fu)一(yi)層(ceng)鋅(xin)(xin)(xin)的薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)。目前主要(yao)采用(yong)連續(xu)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)工(gong)藝生產，即(ji)把(ba)成卷的鋼(gang)(gang)(gang)(gang)板(ban)(ban)連續(xu)浸(jin)(jin)在(zai)熔解有(you)鋅(xin)(xin)(xin)的鍍(du)(du)(du)(du)(du)槽中制成鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban);合金(jin)化鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)。這種鋼(gang)(gang)(gang)(gang)板(ban)(ban)也是用(yong)熱浸(jin)(jin)法(fa)制造(zao)，但(dan)在(zai)出槽后，立(li)即(ji)把(ba)它(ta)加熱到500 ℃左右，使其生成鋅(xin)(xin)(xin)和鐵的合金(jin)被膜。這種鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)具有(you)良好的涂料(liao)的密(mi)著性(xing)和焊(han)接(jie)性(xing);電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)。用(yong)電(dian)鍍(du)(du)(du)(du)(du)法(fa)制造(zao)這種鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)具有(you)良好的加工(gong)性(xing)。但(dan)鍍(du)(du)(du)(du)(du)層(ceng)較薄，耐腐蝕性(xing)不如熱浸(jin)(jin)法(fa)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban);單面(mian)鍍(du)(du)(du)(du)(du)和雙(shuang)面(mian)差鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)。單面(mian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)，即(ji)只在(zai)一(yi)面(mian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)的產品。在(zai)焊(han)接(jie)、涂裝、防銹(xiu)處理、加工(gong)等(deng)方(fang)面(mian)，具有(you)比雙(shuang)面(mian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)好的適應性(xing)。

我國建筑業中，噪(zao)聲污(wu)染問題(ti)久為人(ren)(ren)們所(suo)詬(gou)病。輕(qing)型樓(lou)承板(ban)(ban)的(de)應用使得土建建筑物局面被打破，集環境破壞及污(wu)染少、材料(liao)回收和(he)利用率高(gao)、符合(he)可持(chi)續發(fa)展(zhan)要求(qiu)等眾多優點于一(yi)身的(de)樓(lou)承板(ban)(ban)建筑應運而生，逐(zhu)步被人(ren)(ren)們所(suo)接受。輕(qing)型樓(lou)承板(ban)(ban)是近(jin)十年來發(fa)展(zhan)較快(kuai)的(de)領域，在采用輕(qing)型樓(lou)承板(ban)(ban)占非(fei)住(zhu)宅建筑投資的(de)50%以上。這(zhe)種(zhong)結(jie)構工業化、商品(pin)化程度高(gao)，施工快(kuai)，綜合(he)效益高(gao)，市場需(xu)求(qiu)量很(hen)大(da)，已引起結(jie)構設計(ji)人(ren)(ren)員認識。樓(lou)承板(ban)(ban)的(de)研究開發(fa)已在各地試點，是輕(qing)鋼(gang)發(fa)展(zhan)的(de)一(yi)個重要方向，目前已經(jing)有多種(zhong)的(de)低層、多層和(he)高(gao)層的(de)設計(ji)方案和(he)實例。

鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)是為防止(zhi)鋼(gang)板(ban)(ban)(ban)(ban)表(biao)面遭受(shou)腐蝕，延(yan)長(chang)其(qi)使用壽命，在(zai)鋼(gang)板(ban)(ban)(ban)(ban)表(biao)面涂以一層金(jin)屬鋅(xin)(xin)(xin)，這(zhe)(zhe)種(zhong)涂鋅(xin)(xin)(xin)的(de)薄(bo)鋼(gang)板(ban)(ban)(ban)(ban)稱為鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)。按生產及加(jia)工(gong)(gong)方(fang)法可分為以下幾(ji)類：熱(re)(re)(re)浸(jin)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。將薄(bo)鋼(gang)板(ban)(ban)(ban)(ban)浸(jin)入熔 微(wei)商貨源(yuan)解的(de)鋅(xin)(xin)(xin)槽中(zhong)，使其(qi)表(biao)面粘附一層鋅(xin)(xin)(xin)的(de)薄(bo)鋼(gang)板(ban)(ban)(ban)(ban)。目前(qian)主要采用連續鍍(du)(du)(du)鋅(xin)(xin)(xin)工(gong)(gong)藝生產，即把成卷的(de)鋼(gang)板(ban)(ban)(ban)(ban)連續浸(jin)在(zai)熔解有(you)鋅(xin)(xin)(xin)的(de)鍍(du)(du)(du)槽中(zhong)制成鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)；合金(jin)化(hua)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。這(zhe)(zhe)種(zhong)鋼(gang)板(ban)(ban)(ban)(ban)也是用熱(re)(re)(re)浸(jin)法制造，但在(zai)出(chu)槽后，立即把它加(jia)熱(re)(re)(re)到５００℃左右，使其(qi)生成鋅(xin)(xin)(xin)和鐵的(de)合金(jin)被膜(mo)。這(zhe)(zhe)種(zhong)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)具有(you)良好的(de)涂料的(de)密著(zhu)性和焊(han)接(jie)性。

鍍(du)(du)鋅(xin)鋼(gang)(gang)板的(de)(de)表面鍍(du)(du)鋅(xin)主要采用(yong)的(de)(de)方法是熱(re)(re)鍍(du)(du)鋅(xin)。熱(re)(re)鍍(du)(du)鋅(xin)是由(you)較(jiao)古老的(de)(de)熱(re)(re)鍍(du)(du)方法發(fa)展(zhan)(zhan)而來(lai)的(de)(de)，自從(cong)1836年法國(guo)把熱(re)(re)鍍(du)(du)鋅(xin)應(ying)用(yong)于(yu)工業以來(lai)，已經有一百七十年的(de)(de)歷史了(le)。然而，熱(re)(re)鍍(du)(du)鋅(xin)工業是近(jin)三十年來(lai)伴隨冷軋帶鋼(gang)(gang)的(de)(de)飛速(su)發(fa)展(zhan)(zhan)而得(de)到(dao)了(le)大規模發(fa)展(zhan)(zhan)。鍍(du)(du)鋅(xin)溶(rong)液(ye)有氰(qing)(qing)(qing)(qing)化物(wu)鍍(du)(du)液(ye)和無氰(qing)(qing)(qing)(qing)鍍(du)(du)液(ye)兩(liang)類。氰(qing)(qing)(qing)(qing)化物(wu)鍍(du)(du)液(ye)中(zhong)分(fen)微氰(qing)(qing)(qing)(qing)、低氰(qing)(qing)(qing)(qing)、中(zhong)氰(qing)(qing)(qing)(qing)、和高氰(qing)(qing)(qing)(qing)幾(ji)類。無氰(qing)(qing)(qing)(qing)鍍(du)(du)液(ye)有堿性(xing)鋅(xin)酸(suan)鹽鍍(du)(du)液(ye)、銨(an)鹽鍍(du)(du)液(ye)、硫酸(suan)鹽鍍(du)(du)液(ye)及無氨氯(lv)化物(wu)鍍(du)(du)液(ye)等。氰(qing)(qing)(qing)(qing)化鍍(du)(du)鋅(xin)溶(rong)液(ye)均鍍(du)(du)能力好，得(de)到(dao)的(de)(de)鍍(du)(du)層光滑細致，在(zai)生(sheng)產中(zhong)被長期采用(yong)。但由(you)于(yu)氰(qing)(qing)(qing)(qing)化物(wu)劇(ju)毒，對環境污染嚴重，近(jin)年來(lai)已趨向于(yu)采用(yong)低氰(qing)(qing)(qing)(qing)、微氰(qing)(qing)(qing)(qing)、無氰(qing)(qing)(qing)(qing)鍍(du)(du)鋅(xin)溶(rong)液(ye)。

重慶鍍鋅卷(juan)主(zhu)要有(you)：脫落(luo)(luo)、劃(hua)傷(shang)、鈍(dun)化(hua)(hua)斑(ban)(ban)、鋅粒、厚(hou)邊、氣刀(dao)(dao)條痕(hen)、氣刀(dao)(dao)刮痕(hen)、露鋼(gang)、夾雜、機(ji)械(xie)損傷(shang)、鋼(gang)基(ji)性能不(bu)(bu)(bu)良(liang)、浪邊、瓢曲(qu)、尺(chi)寸不(bu)(bu)(bu)合(he)(he)、壓(ya)印(yin)(yin)、鋅層厚(hou)度不(bu)(bu)(bu)合(he)(he)、輥印(yin)(yin)等。鋅層脫落(luo)(luo)的(de)(de)主(zhu)要原(yuan)因(yin)有(you)：表面氧(yang)(yang)(yang)化(hua)(hua)、有(you)硅(gui)化(hua)(hua)合(he)(he)物、冷(leng)扎乳化(hua)(hua)液太臟、NOF段氧(yang)(yang)(yang)化(hua)(hua)氣氛及(ji)保護氣體(ti)露點(dian)(dian)太高、空(kong)燃比不(bu)(bu)(bu)合(he)(he)理(li)、氫氣流量偏低(di)、爐(lu)(lu)(lu)子(zi)有(you)氧(yang)(yang)(yang)滲入，帶鋼(gang)入鍋(guo)溫度偏低(di)，RWP段爐(lu)(lu)(lu)壓(ya)偏低(di)及(ji)爐(lu)(lu)(lu)門(men)吸風、NOF段爐(lu)(lu)(lu)溫偏低(di)，油脂蒸發不(bu)(bu)(bu)盡(jin)、鋅鍋(guo)鋁含量偏低(di)、機(ji)組速度太快(kuai)、還原(yuan)不(bu)(bu)(bu)充(chong)分、鋅液中停留(liu)時間太短(duan)、鍍層偏厚(hou)。白銹和黑斑(ban)(ban)產(chan)生(sheng)的(de)(de)原(yuan)因(yin)有(you)：黑斑(ban)(ban)是白銹進(jin)一步氧(yang)(yang)(yang)化(hua)(hua)形成的(de)(de)鍍鋅板的(de)(de)特點(dian)(dian)與用(yong)途。鍍鋅卷(juan)板是以熱軋(ya)鋼(gang)帶或冷(leng)軋(ya)鋼(gang)帶為基(ji)板，經過連續熱浸鍍鋅工藝而生(sheng)產(chan)出來(lai)的(de)(de)， 產(chan)品具有(you)耐腐蝕強、 表面質量好、有(you)利于深加工、經濟(ji)實用(yong)等特點(dian)(dian)。

鍍鋅卷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。甘肅攀華鍍鋅卷冷卻速(su)度越快鋅(xin)花(hua)越小(xiao)，冷卻速(su)度越慢鋅(xin)花(hua)越大。熱(re)鍍鋅(xin)帶鋼在我國(guo)市(shi)場一直是(shi)緊(jin)缺品種。從(cong)20世(shi)紀90年代(dai)中期以來，每年都(dou)要(yao)從(cong)國(guo)外進(jin)口80-100萬(wan)t左右。隨著(zhu)國(guo)內經濟的發(fa)(fa)展，尤其是(shi)汽車、家電及建筑(zhu)業的發(fa)(fa)展，對鍍鋅(xin)帶鋼的需求量也大大增加。