彩(cai)鋼是(shi)指(zhi)彩(cai)涂(tu)鋼板(ban)(ban)，彩(cai)涂(tu)鋼板(ban)(ban)是(shi)一種帶有有機涂(tu)層(ceng)(ceng)的(de)(de)鋼板(ban)(ban)，傳(chuan)統的(de)(de)涂(tu)層(ceng)(ceng)分(fen)好幾(ji)類(lei)，氟碳涂(tu)層(ceng)(ceng)的(de)(de)，幾(ji)乎可以防腐(fu)20年。一般從鋼廠以卷筒的(de)(de)形式(shi)分(fen)銷到(dao)各地。我們經常看(kan)到(dao)的(de)(de)彩(cai)鋼板(ban)(ban)是(shi)指(zhi)加工好的(de)(de)板(ban)(ban)材(cai)，厚(hou)度(du)(du)在50~100mm左右，它是(shi)由中(zhong)(zhong)間的(de)(de)填料和兩面的(de)(de)彩(cai)鋼板(ban)(ban)組成。其(qi)中(zhong)(zhong)，彩(cai)板(ban)(ban)厚(hou)度(du)(du)有0.4mm、0.5mm、0.6mm等不(bu)同的(de)(de)厚(hou)度(du)(du),中(zhong)(zhong)間層(ceng)(ceng)可以是(shi)聚胺(an)脂、巖綿或(huo)泡沫塑料等。由于有專用(yong)型材(cai)，所以用(yong)彩(cai)鋼板(ban)(ban)構筑的(de)(de)廠房建造(zao)速度(du)(du)很(hen)快（如非典(dian)時的(de)(de)小湯山醫(yi)院），但強度(du)(du)低。

鍍(du)鋅(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)是(shi)為防止鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)表面遭(zao)受腐(fu)蝕，延長(chang)其(qi)使(shi)用(yong)(yong)壽命，在(zai)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)表面涂(tu)以一層金屬鋅(xin)，這種(zhong)涂(tu)鋅(xin)的(de)(de)薄鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)稱為鍍(du)鋅(xin)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)也是(shi)用(yong)(yong)熱浸(jin)法制造(zao)，但(dan)在(zai)出(chu)槽后(hou)，立(li)即把(ba)它(ta)(ta)加(jia)熱到500℃左右，使(shi)其(qi)生成(cheng)鋅(xin)和(he)鐵(tie)的(de)(de)合(he)(he)金被膜(mo)。這種(zhong)鍍(du)鋅(xin)卷(juan)具有(you)良(liang)(liang)好(hao)(hao)的(de)(de)涂(tu)料的(de)(de)密(mi)著(zhu)性(xing)和(he)焊(han)接(jie)性(xing)。合(he)(he)金化鍍(du)鋅(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。這種(zhong)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)也是(shi)用(yong)(yong)熱浸(jin)法制造(zao)，但(dan)在(zai)出(chu)槽后(hou)，立(li)即把(ba)它(ta)(ta)加(jia)熱到500℃左右，使(shi)其(qi)生成(cheng)鋅(xin)和(he)鐵(tie)的(de)(de)合(he)(he)金被膜(mo)。這種(zhong)鍍(du)鋅(xin)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)具有(you)良(liang)(liang)好(hao)(hao)的(de)(de)涂(tu)料的(de)(de)密(mi)著(zhu)性(xing)和(he)焊(han)接(jie)性(xing)。熱浸(jin)鍍(du)鋅(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。將薄鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)浸(jin)入熔解的(de)(de)鋅(xin)槽中(zhong)，使(shi)其(qi)表面粘附一層鋅(xin)的(de)(de)薄鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。目前主要采(cai)用(yong)(yong)連續鍍(du)鋅(xin)工(gong)藝(yi)生產，即把(ba)成(cheng)卷(juan)的(de)(de)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)連續浸(jin)在(zai)熔解有(you)鋅(xin)的(de)(de)鍍(du)槽中(zhong)制成(cheng)鍍(du)鋅(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。合(he)(he)金、復(fu)合(he)(he)鍍(du)鋅(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。它(ta)(ta)是(shi)用(yong)(yong)鋅(xin)和(he)其(qi)他金屬如鉛(qian)、鋅(xin)制成(cheng)合(he)(he)金乃(nai)至復(fu)合(he)(he)鍍(du)成(cheng)的(de)(de)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)。這種(zhong)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)既具有(you)防銹性(xing)能，又(you)有(you)良(liang)(liang)好(hao)(hao)的(de)(de)涂(tu)裝性(xing)能。

由于(yu)我國鋅(xin)(xin)資源比較豐富，鍍鋅(xin)(xin)又是一(yi)種價廉、能防銹(xiu)，又能裝飾的(de)(de)高(gao)性價比鍍種，因而在汽車(che)(che)、機械(xie)、電(dian)子(zi)、船舶、儀表、輕工(gong)等(deng)(deng)工(gong)業部門(men)得到(dao)廣泛(fan)的(de)(de)應用(yong)。如機械(xie)零件、低壓電(dian)器、高(gao)壓開(kai)關、緊固(gu)連接件、鋼(gang)鐵(tie)結(jie)構件、建(jian)(jian)筑五(wu)金、農(nong)業機械(xie)、輕工(gong)產品等(deng)(deng)都離不開(kai)鍍鋅(xin)(xin)鈍化(hua)制(zhi)(zhi)品。鍍鋅(xin)(xin)板卷(juan)因此可分為熱軋鍍鋅(xin)(xin)板卷(juan)和冷軋熱鍍鋅(xin)(xin)板卷(juan)，它們主要(yao)用(yong)于(yu)建(jian)(jian)筑、家(jia)電(dian)、汽車(che)(che)、容器、交通及家(jia)業等(deng)(deng)領域。特別是鋼(gang)結(jie)構建(jian)(jian)筑、汽車(che)(che)制(zhi)(zhi)造、鋼(gang)板倉制(zhi)(zhi)造等(deng)(deng)行(xing)業。 重慶鍍鋅(xin)(xin)卷(juan)特點主要(yao)為：耐腐(fu)蝕強、表面質量好、得利(li)于(yu)深加工(gong)、經濟實用(yong)等(deng)(deng)。

彩涂卷批發熱鍍鋅卷板價格行業統計數據顯示，十一月國內粗鋼日均產量為兩百零九萬噸，環比下降3.3%，創出今年以來水平，但是當前減產受到季節性因素支撐，市場對數據有效性提出質疑。長沙彩涂卷鍍(du)鋅(xin)卷(juan)工業(ye)品(pin)而言，近期陸續公布的重要數(shu)據中性偏多。但值得注意的是，同年十一(yi)(yi)月熱(re)鍍(du)鋅(xin)卷(juan)板(ban)(ban)價格(ge)工業(ye)增(zeng)加值和投資增(zeng)速放(fang)緩，進(jin)一(yi)(yi)步(bu)印證了國內(nei)總(zong)需(xu)求(qiu)乏力，工業(ye)復蘇(su)形勢不容(rong)樂觀。加上未來經(jing)濟結構調整等因素，工業(ye)品(pin)價格(ge)反(fan)彈(dan)高(gao)度將有限。傳統(tong)需(xu)求(qiu)淡季(ji)效應還在持續不斷(duan)地發酵，冬儲效果(guo)不佳。雖然數(shu)據顯示供應壓(ya)力開(kai)始減(jian)輕，但是目前處(chu)于鋼鐵需(xu)求(qiu)淡季(ji)，市場成交萎縮(suo)，下游采(cai)購(gou)遲遲未能有效跟(gen)進(jin)，市場信(xin)心不足，鍍(du)鋅(xin)鋼板(ban)(ban)貿易商囤貨現象也不明(ming)顯。

鍍鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)按用(yong)(yong)途(tu)又可(ke)分為(wei)(wei)一(yi)(yi)般(ban)用(yong)(yong)、屋頂(ding)用(yong)(yong)、建(jian)筑外側板(ban)(ban)用(yong)(yong)、結構用(yong)(yong)、瓦壟板(ban)(ban)用(yong)(yong)、拉伸用(yong)(yong)和深沖用(yong)(yong)等(deng)鍍鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)。對于一(yi)(yi)般(ban)防(fang)保(bao)護(hu)(hu)用(yong)(yong)鍍層，可(ke)以采用(yong)(yong)堿性鋅(xin)(xin)(xin)酸鹽鍍鋅(xin)(xin)(xin)彩色(se)鈍化工藝。有時為(wei)(wei)了產品(pin)的(de)配色(se)需要，也可(ke)以采用(yong)(yong)藍白色(se)鈍化工藝，比如軍(jun)綠色(se)鈍化、黑色(se)鈍化等(deng)。為(wei)(wei)提高鋼(gang)(gang)(gang)管(guan)(guan)(guan)的(de)耐腐(fu)(fu)蝕(shi)(shi)性能，對一(yi)(yi)般(ban)鋼(gang)(gang)(gang)管(guan)(guan)(guan)進行鍍鋅(xin)(xin)(xin)。鍍鋅(xin)(xin)(xin)卷分熱鍍鋅(xin)(xin)(xin)和電鍍鋅(xin)(xin)(xin)兩種(zhong)，熱鍍鋅(xin)(xin)(xin)鍍鋅(xin)(xin)(xin)層厚，電鍍鋅(xin)(xin)(xin)成本低(di)，表面不是(shi)很光(guang)滑(hua)。吹氧焊管(guan)(guan)(guan)：用(yong)(yong)作(zuo)煉鋼(gang)(gang)(gang)吹氧用(yong)(yong)管(guan)(guan)(guan)，一(yi)(yi)般(ban)用(yong)(yong)小口徑的(de)焊接鋼(gang)(gang)(gang)管(guan)(guan)(guan)，規格由3/8-2寸八種(zhong)。用(yong)(yong)08、10、15、20或者195-Q235的(de)鋼(gang)(gang)(gang)帶制(zhi)作(zuo)成的(de)，為(wei)(wei)了防(fang)腐(fu)(fu)蝕(shi)(shi)，有得進行滲鋁(lv)處理。鍍鋅(xin)(xin)(xin)其防(fang)護(hu)(hu)作(zuo)用(yong)(yong)更強(qiang)，抗(kang)腐(fu)(fu)蝕(shi)(shi)能力強(qiang)。整個結構由鋅(xin)(xin)(xin)，形成致密的(de)四元結晶體(ti)，此結晶體(ti)在鋼(gang)(gang)(gang)板(ban)(ban)上(shang)形成一(yi)(yi)層屏障， 因而(er)有效的(de)防(fang)止腐(fu)(fu)蝕(shi)(shi)因子(zi)穿透。 耐腐(fu)(fu)蝕(shi)(shi)性來自(zi)鋅(xin)(xin)(xin)的(de)障礙(ai)層保(bao)護(hu)(hu)功能強(qiang)。

重慶鍍(du)(du)鋅(xin)卷(juan)主(zhu)要有：脫落、劃傷(shang)、鈍化(hua)斑、鋅(xin)粒、厚(hou)邊(bian)、氣(qi)刀條痕(hen)、氣(qi)刀刮痕(hen)、露(lu)鋼(gang)、夾雜、機(ji)械(xie)損傷(shang)、鋼(gang)基性能(neng)不良、浪邊(bian)、瓢曲、尺(chi)寸(cun)不合(he)、壓印(yin)、鋅(xin)層厚(hou)度(du)(du)不合(he)、輥印(yin)等。鋅(xin)層脫落的主(zhu)要原因有：表(biao)面氧(yang)化(hua)、有硅化(hua)合(he)物、冷扎乳化(hua)液太(tai)(tai)臟、NOF段氧(yang)化(hua)氣(qi)氛(fen)及(ji)保護氣(qi)體露(lu)點(dian)太(tai)(tai)高、空燃比不合(he)理(li)、氫氣(qi)流量(liang)偏低(di)、爐子有氧(yang)滲入(ru)，帶鋼(gang)入(ru)鍋(guo)溫度(du)(du)偏低(di)，RWP段爐壓偏低(di)及(ji)爐門吸風、NOF段爐溫偏低(di)，油脂蒸發(fa)不盡、鋅(xin)鍋(guo)鋁含量(liang)偏低(di)、機(ji)組速度(du)(du)太(tai)(tai)快、還原不充分、鋅(xin)液中停(ting)留時(shi)間太(tai)(tai)短、鍍(du)(du)層偏厚(hou)。白銹和黑斑產生(sheng)的原因有：黑斑是白銹進一步氧(yang)化(hua)形(xing)成的鍍(du)(du)鋅(xin)板(ban)的特點(dian)與用途(tu)。鍍(du)(du)鋅(xin)卷(juan)板(ban)是以熱(re)軋鋼(gang)帶或冷軋鋼(gang)帶為基板(ban)，經(jing)過(guo)連(lian)續熱(re)浸(jin)鍍(du)(du)鋅(xin)工藝而生(sheng)產出來的， 產品具有耐腐蝕強(qiang)、 表(biao)面質(zhi)量(liang)好、有利(li)于深加(jia)工、經(jing)濟實用等特點(dian)。