重慶鍍鋅(xin)(xin)卷主要有(you)：脫落(luo)、劃傷、鈍化(hua)斑、鋅(xin)(xin)粒、厚(hou)邊、氣(qi)刀條痕、氣(qi)刀刮(gua)痕、露鋼(gang)、夾雜、機械(xie)損傷、鋼(gang)基(ji)性能不良、浪邊、瓢曲、尺寸不合(he)、壓(ya)印、鋅(xin)(xin)層厚(hou)度(du)不合(he)、輥印等。鋅(xin)(xin)層脫落(luo)的(de)主要原因(yin)有(you)：表(biao)面氧(yang)化(hua)、有(you)硅化(hua)合(he)物(wu)、冷扎乳化(hua)液太臟、NOF段(duan)氧(yang)化(hua)氣(qi)氛及(ji)保護氣(qi)體露點(dian)太高、空燃比(bi)不合(he)理、氫氣(qi)流(liu)量偏低(di)、爐子有(you)氧(yang)滲入(ru)(ru)，帶(dai)(dai)(dai)鋼(gang)入(ru)(ru)鍋溫(wen)度(du)偏低(di)，RWP段(duan)爐壓(ya)偏低(di)及(ji)爐門吸風、NOF段(duan)爐溫(wen)偏低(di)，油脂蒸發不盡、鋅(xin)(xin)鍋鋁含量偏低(di)、機組速度(du)太快、還原不充分、鋅(xin)(xin)液中停(ting)留時(shi)間太短、鍍層偏厚(hou)。白銹(xiu)和(he)黑(hei)斑產(chan)生的(de)原因(yin)有(you)：黑(hei)斑是(shi)白銹(xiu)進一步氧(yang)化(hua)形成的(de)鍍鋅(xin)(xin)板(ban)的(de)特點(dian)與(yu)用途。鍍鋅(xin)(xin)卷板(ban)是(shi)以熱(re)軋(ya)(ya)鋼(gang)帶(dai)(dai)(dai)或冷軋(ya)(ya)鋼(gang)帶(dai)(dai)(dai)為基(ji)板(ban)，經(jing)過連(lian)續熱(re)浸鍍鋅(xin)(xin)工藝而(er)生產(chan)出(chu)來(lai)的(de)， 產(chan)品具有(you)耐(nai)腐蝕強、 表(biao)面質量好、有(you)利于深加工、經(jing)濟(ji)實用等特點(dian)。

鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)按用(yong)(yong)(yong)途又可分為(wei)(wei)一般(ban)用(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)、建筑外側(ce)板(ban)(ban)用(yong)(yong)(yong)、結構用(yong)(yong)(yong)、瓦(wa)壟板(ban)(ban)用(yong)(yong)(yong)、拉伸用(yong)(yong)(yong)和(he)深沖用(yong)(yong)(yong)等(deng)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)。對(dui)于一般(ban)防保(bao)護(hu)用(yong)(yong)(yong)鍍(du)(du)(du)(du)(du)層，可以采用(yong)(yong)(yong)堿性(xing)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)酸鹽鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)彩(cai)色(se)鈍化工藝(yi)。有時為(wei)(wei)了(le)產(chan)品的(de)(de)配色(se)需要，也可以采用(yong)(yong)(yong)藍白(bai)色(se)鈍化工藝(yi)，比(bi)如軍(jun)綠色(se)鈍化、黑(hei)色(se)鈍化等(deng)。為(wei)(wei)提高鋼(gang)管的(de)(de)耐(nai)腐(fu)(fu)蝕性(xing)能，對(dui)一般(ban)鋼(gang)管進(jin)行鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)。鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)卷分熱(re)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)和(he)電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)兩(liang)種(zhong)，熱(re)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)層厚，電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)成(cheng)本低，表面(mian)不(bu)是(shi)很(hen)光滑。吹氧(yang)焊(han)管：用(yong)(yong)(yong)作煉鋼(gang)吹氧(yang)用(yong)(yong)(yong)管，一般(ban)用(yong)(yong)(yong)小口徑的(de)(de)焊(han)接鋼(gang)管，規(gui)格由3/8-2寸八(ba)種(zhong)。用(yong)(yong)(yong)08、10、15、20或者195-Q235的(de)(de)鋼(gang)帶制作成(cheng)的(de)(de)，為(wei)(wei)了(le)防腐(fu)(fu)蝕，有得進(jin)行滲鋁處理。鍍(du)(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)其防護(hu)作用(yong)(yong)(yong)更強(qiang)，抗腐(fu)(fu)蝕能力強(qiang)。整個(ge)結構由鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)，形成(cheng)致密的(de)(de)四元結晶(jing)體(ti)，此結晶(jing)體(ti)在鋼(gang)板(ban)(ban)上形成(cheng)一層屏障(zhang)， 因而有效的(de)(de)防止腐(fu)(fu)蝕因子穿透(tou)。 耐(nai)腐(fu)(fu)蝕性(xing)來自鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)的(de)(de)障(zhang)礙層保(bao)護(hu)功能強(qiang)。

鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)為(wei)基板(ban)(ban)的彩涂(tu)(tu)鋼(gang)(gang)板(ban)(ban)，除有(you)(you)鋅保護外，鋅層(ceng)(ceng)上的有(you)(you)機(ji)涂(tu)(tu)層(ceng)(ceng)起了覆蓋(gai)隔離作用，可(ke)防(fang)止鋼(gang)(gang)板(ban)(ban)生銹，使用壽(shou)命比鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)更長，據介(jie)紹涂(tu)(tu)層(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)的使用壽(shou)命比鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)長50%。在(zai)連續機(ji)組上以(yi)冷軋帶(dai)鋼(gang)(gang)，鍍(du)(du)鋅帶(dai)鋼(gang)(gang)（電鍍(du)(du)鋅和熱鍍(du)(du)鋅）為(wei)基板(ban)(ban)，經(jing)過表面預處理（脫脂和化學處理），用輥涂(tu)(tu)的方法，涂(tu)(tu)上一層(ceng)(ceng)或多層(ceng)(ceng)液態涂(tu)(tu)料，經(jing)過烘烤和冷卻所得(de)的板(ban)(ban)材(cai)即(ji)為(wei)涂(tu)(tu)層(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)。由(you)(you)于涂(tu)(tu)層(ceng)(ceng)可(ke)以(yi)有(you)(you)各種不同的顏色，習慣上把涂(tu)(tu)層(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)叫做(zuo)彩色涂(tu)(tu)層(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)。又由(you)(you)于涂(tu)(tu)層(ceng)(ceng)是(shi)在(zai)鋼(gang)(gang)板(ban)(ban)成型加工之前進行的，在(zai)國外這叫做(zuo)預涂(tu)(tu)層(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)。

用電鍍法制造這種鍍鋅鋼板具有良好的加工性。但鍍層較薄，耐腐蝕性不如熱浸法鍍鋅板；單面鍍和雙面差鍍鋅鋼板。單面鍍鋅鋼板，即只在一面鍍鋅的產品。甘肅彩涂卷在焊接、涂裝、防銹處理、加工等方面，具有比雙面鍍鋅板好的適應性。為克服單面未涂鋅的缺點，又有一種在另面涂以薄層鋅的鍍鋅板，即雙面差鍍鋅板；合金、復合鍍鋅鋼板。彩涂卷廠家它(ta)是用(yong)鋅(xin)(xin)(xin)和其他金屬如鉛、鋅(xin)(xin)(xin)制(zhi)成(cheng)合金乃至復合鍍成(cheng)的(de)(de)鋼板(ban)(ban)。這種鋼板(ban)(ban)既具有(you)防(fang)銹性能，又有(you)良好的(de)(de)涂(tu)裝(zhuang)性能。 除上(shang)述五種外(wai)，還有(you)彩色鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)、印(yin)花(hua)涂(tu)裝(zhuang)鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)、聚氯乙烯疊層鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)等。但目前常(chang)用(yong)的(de)(de)仍為熱浸鍍鋅(xin)(xin)(xin)板(ban)(ban)。 鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)按(an)用(yong)途又可(ke)分為一般用(yong)、屋頂用(yong)、建筑外(wai)側板(ban)(ban)用(yong)、結構用(yong)、瓦壟板(ban)(ban)用(yong)、拉伸(shen)用(yong)和深沖用(yong)等鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)。

鍍(du)鋅(xin)(xin)是一(yi)種經常采用(yong)(yong)的(de)(de)(de)經濟而有(you)效的(de)(de)(de)防腐(fu)方法。鋅(xin)(xin)產(chan)(chan)量的(de)(de)(de)一(yi)半(ban)左右均(jun)用(yong)(yong)于此種工藝。鍍(du)鋅(xin)(xin)卷(juan)(juan)是為防止鋼板(ban)(ban)表(biao)(biao)面遭受腐(fu)蝕(shi)延長(chang)其使用(yong)(yong)壽命，在鋼板(ban)(ban)表(biao)(biao)面涂(tu)以一(yi)層金屬鋅(xin)(xin)，這種涂(tu)鋅(xin)(xin)的(de)(de)(de)鋼板(ban)(ban)稱為鍍(du)鋅(xin)(xin)卷(juan)(juan)。鍍(du)鋅(xin)(xin)卷(juan)(juan)主要用(yong)(yong)于建筑、家電、汽車、容器(qi)、交通(tong)及(ji)家業(ye)等(deng)領域。特(te)別是鋼結(jie)構建筑、汽車制(zhi)造(zao)、鋼板(ban)(ban)倉制(zhi)造(zao)等(deng)行業(ye)。耐腐(fu)蝕(shi)強、表(biao)(biao)面質量好、得(de)利(li)于深加工、經濟實用(yong)(yong)等(deng)。有(you)關(guan)產(chan)(chan)品標準都列明鍍(du)鋅(xin)(xin)卷(juan)(juan)推(tui)薦的(de)(de)(de)標準厚(hou)度(du)、長(chang)度(du)和寬度(du)及(ji)其允許(xu)偏(pian)差(cha)。鍍(du)鋅(xin)(xin)卷(juan)(juan)厚(hou)度(du)偏(pian)差(cha)一(yi)般在0.05mm，長(chang)寬偏(pian)差(cha)一(yi)般在5mm ，板(ban)(ban)材(cai)的(de)(de)(de)厚(hou)度(du)一(yi)般在0.2-3.2之(zhi)間 。