彩(cai)鋼(gang)(gang)是(shi)(shi)指彩(cai)涂(tu)(tu)鋼(gang)(gang)板(ban)，彩(cai)涂(tu)(tu)鋼(gang)(gang)板(ban)是(shi)(shi)一(yi)種(zhong)帶有有機涂(tu)(tu)層的(de)(de)(de)(de)鋼(gang)(gang)板(ban)，傳統的(de)(de)(de)(de)涂(tu)(tu)層分好(hao)幾類，氟碳涂(tu)(tu)層的(de)(de)(de)(de)，幾乎(hu)可(ke)以防腐20年。一(yi)般從鋼(gang)(gang)廠以卷(juan)筒的(de)(de)(de)(de)形式分銷到(dao)各(ge)地。我(wo)們經常看到(dao)的(de)(de)(de)(de)彩(cai)鋼(gang)(gang)板(ban)是(shi)(shi)指加(jia)工(gong)好(hao)的(de)(de)(de)(de)板(ban)材，厚度(du)(du)在50~100mm左右(you)，它是(shi)(shi)由(you)中間(jian)的(de)(de)(de)(de)填料(liao)和兩面的(de)(de)(de)(de)彩(cai)鋼(gang)(gang)板(ban)組成。其中，彩(cai)板(ban)厚度(du)(du)有0.4mm、0.5mm、0.6mm等不同的(de)(de)(de)(de)厚度(du)(du),中間(jian)層可(ke)以是(shi)(shi)聚胺脂、巖綿(mian)或泡沫塑料(liao)等。由(you)于有專用(yong)型(xing)材，所以用(yong)彩(cai)鋼(gang)(gang)板(ban)構(gou)筑的(de)(de)(de)(de)廠房建(jian)造速度(du)(du)很(hen)快(kuai)（如非典(dian)時的(de)(de)(de)(de)小湯山醫院），但強度(du)(du)低。

鍍(du)鋅(xin)(xin)帶(dai)鋼(gang)(gang)的(de)(de)鋅(xin)(xin)層特性 電鍍(du)鋅(xin)(xin)層是(shi)不能形成鋅(xin)(xin)花的(de)(de)，熱鍍(du)鋅(xin)(xin)層則有鋅(xin)(xin)花，其(qi)形成過程如下(xia)：當鍍(du)鋅(xin)(xin)帶(dai)從鋅(xin)(xin)鍋出來(lai)后，經(jing)氣刀(dao)的(de)(de)噴吹，大(da)量(liang)(liang)鋅(xin)(xin)液被吹回(hui)鋅(xin)(xin)鍋，這時帶(dai)鋼(gang)(gang)表面還有純鋅(xin)(xin)層，呈液 態附在鋼(gang)(gang)板(ban)(ban)表面，在鋼(gang)(gang)板(ban)(ban)表面形成大(da)量(liang)(liang)結晶核(he)(he)，隨著(zhu)鋼(gang)(gang)板(ban)(ban)上(shang)升冷卻，使結晶核(he)(he)慢慢長(chang)成鋅(xin)(xin)花。冷卻速度越(yue)快鋅(xin)(xin)花越(yue)小，冷卻速度越(yue)慢鋅(xin)(xin)花越(yue)大(da)。熱鍍(du)鋅(xin)(xin)帶(dai)鋼(gang)(gang)在我國市場一直是(shi)緊(jin)缺品種。從20世紀90年代中(zhong)期以來(lai)，每年都(dou)要(yao)從國外進口80-100萬t左右。隨著(zhu)國內(nei)經(jing)濟的(de)(de)發展(zhan)，尤其(qi)是(shi)汽車(che)、家電及建筑業的(de)(de)發展(zhan)，對(dui)鍍(du)鋅(xin)(xin)帶(dai)鋼(gang)(gang)的(de)(de)需求量(liang)(liang)也(ye)大(da)大(da)增加。

鍍(du)鋅(xin)(xin)(xin)(xin)(xin)方管是(shi)一(yi)種具以熱軋或冷軋鍍(du)鋅(xin)(xin)(xin)(xin)(xin)帶鋼(gang)或鍍(du)鋅(xin)(xin)(xin)(xin)(xin)卷板(ban)(ban)為坯料經(jing)冷彎曲(qu)加工成(cheng)(cheng)型(xing)后再經(jing)高頻焊接制成(cheng)(cheng)的(de)(de)(de)方形(xing)截(jie)面形(xing)狀尺寸(cun)的(de)(de)(de)空心方形(xing)的(de)(de)(de)截(jie)面型(xing)鋼(gang)鋼(gang)管；鍍(du)鋅(xin)(xin)(xin)(xin)(xin)卷或將事先(xian)做好的(de)(de)(de)冷彎空心型(xing)鋼(gang)管再經(jing)熱浸(jin)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)加工而成(cheng)(cheng)的(de)(de)(de)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)方矩管。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量是(shi)表(biao)示鍍(du)鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)鋅(xin)(xin)(xin)(xin)(xin)層厚度的(de)(de)(de)一(yi)個普遍采用的(de)(de)(de)有效方法。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)量的(de)(de)(de)單位為g/m2。鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層通(tong)過鈍化處(chu)理，可減(jian)少(shao)潮溫(wen)貯運條件下產生折銹(xiu)蝕(shi)(白(bai)銹(xiu)) 。但這種化學處(chu)理的(de)(de)(de)防腐蝕(shi)性能(neng)是(shi)有限(xian)的(de)(de)(de)，而且，妨(fang)礙大多(duo)數涂料的(de)(de)(de)附(fu)著性。這種處(chu)理一(yi)般不用在鋅(xin)(xin)(xin)(xin)(xin)鐵合金鍍(du)層，除光整表(biao)面外(wai)，作為常規，生產廠對其他(ta)類型(xing)的(de)(de)(de)鍍(du)鋅(xin)(xin)(xin)(xin)(xin)層均進行鈍化處(chu)理。

鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)是(shi)為防(fang)止鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)表面遭受(shou)腐蝕，延長其(qi)(qi)使(shi)(shi)用(yong)(yong)壽(shou)命，在鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)表面涂(tu)(tu)以一層金(jin)(jin)(jin)屬(shu)鋅(xin)(xin)，這(zhe)(zhe)(zhe)種(zhong)涂(tu)(tu)鋅(xin)(xin)的(de)(de)(de)薄(bo)(bo)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)稱為鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)也是(shi)用(yong)(yong)熱(re)浸(jin)法制(zhi)(zhi)造，但(dan)在出槽(cao)后(hou)，立(li)即把(ba)(ba)它加熱(re)到500℃左右，使(shi)(shi)其(qi)(qi)生(sheng)成鋅(xin)(xin)和鐵的(de)(de)(de)合(he)金(jin)(jin)(jin)被膜。這(zhe)(zhe)(zhe)種(zhong)鍍(du)(du)(du)鋅(xin)(xin)卷(juan)具有良好(hao)的(de)(de)(de)涂(tu)(tu)料的(de)(de)(de)密著性(xing)(xing)和焊接性(xing)(xing)。合(he)金(jin)(jin)(jin)化鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。這(zhe)(zhe)(zhe)種(zhong)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)也是(shi)用(yong)(yong)熱(re)浸(jin)法制(zhi)(zhi)造，但(dan)在出槽(cao)后(hou)，立(li)即把(ba)(ba)它加熱(re)到500℃左右，使(shi)(shi)其(qi)(qi)生(sheng)成鋅(xin)(xin)和鐵的(de)(de)(de)合(he)金(jin)(jin)(jin)被膜。這(zhe)(zhe)(zhe)種(zhong)鍍(du)(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)(ban)(ban)(ban)具有良好(hao)的(de)(de)(de)涂(tu)(tu)料的(de)(de)(de)密著性(xing)(xing)和焊接性(xing)(xing)。熱(re)浸(jin)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。將薄(bo)(bo)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)浸(jin)入熔解的(de)(de)(de)鋅(xin)(xin)槽(cao)中(zhong)，使(shi)(shi)其(qi)(qi)表面粘附一層鋅(xin)(xin)的(de)(de)(de)薄(bo)(bo)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。目前主(zhu)要采用(yong)(yong)連續鍍(du)(du)(du)鋅(xin)(xin)工(gong)藝生(sheng)產，即把(ba)(ba)成卷(juan)的(de)(de)(de)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)連續浸(jin)在熔解有鋅(xin)(xin)的(de)(de)(de)鍍(du)(du)(du)槽(cao)中(zhong)制(zhi)(zhi)成鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。合(he)金(jin)(jin)(jin)、復合(he)鍍(du)(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。它是(shi)用(yong)(yong)鋅(xin)(xin)和其(qi)(qi)他金(jin)(jin)(jin)屬(shu)如鉛、鋅(xin)(xin)制(zhi)(zhi)成合(he)金(jin)(jin)(jin)乃至復合(he)鍍(du)(du)(du)成的(de)(de)(de)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)。這(zhe)(zhe)(zhe)種(zhong)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)既具有防(fang)銹性(xing)(xing)能，又有良好(hao)的(de)(de)(de)涂(tu)(tu)裝性(xing)(xing)能。

鍍鋅鋼板價格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。西昌鍍鋅鋼板鍍鋅(xin)(xin)卷工業(ye)(ye)品而言，近期陸續公布的重要數據中性偏(pian)多(duo)。但值(zhi)得注意的是，同年十一(yi)月熱鍍鋅(xin)(xin)卷板(ban)價格工業(ye)(ye)增(zeng)(zeng)加值(zhi)和投資增(zeng)(zeng)速放緩，進一(yi)步(bu)印證了國內總需(xu)(xu)求乏(fa)力，工業(ye)(ye)復蘇(su)形勢不(bu)(bu)(bu)容樂觀。加上未來(lai)經濟結構調整等因素，工業(ye)(ye)品價格反彈高度將有限。傳(chuan)統需(xu)(xu)求淡(dan)季(ji)效應還在(zai)持續不(bu)(bu)(bu)斷(duan)地發酵，冬儲效果不(bu)(bu)(bu)佳。雖然數據顯示(shi)供應壓力開始減(jian)輕，但是目前處于鋼鐵需(xu)(xu)求淡(dan)季(ji)，市(shi)場成交(jiao)萎縮，下游采購遲(chi)遲(chi)未能有效跟進，市(shi)場信心不(bu)(bu)(bu)足，鍍鋅(xin)(xin)鋼板(ban)貿(mao)易商囤貨現象也不(bu)(bu)(bu)明顯。