熱(re)鍍鋅(xin)(xin)(xin)卷板(ban)(ban)現貨(huo)消息(xi)：熱(re)鍍鋅(xin)(xin)(xin)產品廣泛用于建筑、家電、車船、容器制(zhi)造業、機電業等，幾乎涉(she)及到(dao)衣食住行各個(ge)領域。近(jin)年來，世(shi)界(jie)鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)需求量不斷增(zeng)加，產量增(zeng)長也很快(kuai)，在(zai)(zai)(zai)美(mei)、日等鋼材生(sheng)產大國(guo)，熱(re)鍍鋅(xin)(xin)(xin)鋼板(ban)(ban)在(zai)(zai)(zai)鋼材中所占比例已高達(da)13%-15%。 熱(re)鍍鋅(xin)(xin)(xin)卷板(ban)(ban)現貨(huo)消息(xi)：近(jin)來，汽車行業越(yue)來越(yue)重(zhong)視材料的(de)使用壽命(ming)，用涂漆冷軋(ya)鋼板(ban)(ban)已不能(neng)滿(man)足耐腐蝕方面的(de)要求。在(zai)(zai)(zai)這種情況下(xia)，耐腐蝕性優良且(qie)成(cheng)本低(di)廉的(de)熱(re)鍍鋅(xin)(xin)(xin)板(ban)(ban)開始(shi)普遍(bian)受到(dao)了汽車廠家的(de)青睞。

鍍鋅鋼管廠家鍍鋅鋼板為基板的彩涂鋼板，除有鋅保護外，鋅層上的有機涂層起了覆蓋隔離作用，可防止鋼板生銹，使用壽命比鍍鋅鋼板更長，據介紹涂層鋼板的使用壽命比鍍鋅鋼板長50%。河南鍍鋅鋼管在連續機組上(shang)以冷軋帶鋼(gang)，鍍鋅(xin)帶鋼(gang)（電鍍鋅(xin)和熱(re)鍍鋅(xin)）為基(ji)板(ban)(ban)，經(jing)過表面預處理(li)（脫脂和化學處理(li)），用輥涂的(de)方法，涂上(shang)一層(ceng)(ceng)或(huo)多層(ceng)(ceng)液態涂料(liao)，經(jing)過烘烤和冷卻所得的(de)板(ban)(ban)材即為涂層(ceng)(ceng)鋼(gang)板(ban)(ban)。由于涂層(ceng)(ceng)可以有各種不(bu)同的(de)顏色(se)，習慣上(shang)把(ba)涂層(ceng)(ceng)鋼(gang)板(ban)(ban)叫(jiao)做彩色(se)涂層(ceng)(ceng)鋼(gang)板(ban)(ban)。又由于涂層(ceng)(ceng)是在鋼(gang)板(ban)(ban)成型加工之前進(jin)行的(de)，在國外這叫(jiao)做預涂層(ceng)(ceng)鋼(gang)板(ban)(ban)。

重慶鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)卷主要有(you)(you)(you)：脫落(luo)(luo)、劃(hua)傷、鈍化斑、鋅(xin)(xin)(xin)(xin)(xin)粒、厚邊(bian)、氣刀條痕(hen)、氣刀刮痕(hen)、露鋼(gang)(gang)、夾雜(za)、機械損傷、鋼(gang)(gang)基(ji)性能不良(liang)、浪(lang)邊(bian)、瓢曲、尺(chi)寸不合(he)(he)(he)(he)、壓(ya)印(yin)、鋅(xin)(xin)(xin)(xin)(xin)層(ceng)厚度(du)不合(he)(he)(he)(he)、輥印(yin)等。鋅(xin)(xin)(xin)(xin)(xin)層(ceng)脫落(luo)(luo)的主要原因有(you)(you)(you)：表面(mian)氧化、有(you)(you)(you)硅化合(he)(he)(he)(he)物(wu)、冷(leng)扎乳化液太臟、NOF段(duan)氧化氣氛(fen)及保護氣體(ti)露點太高、空燃比(bi)不合(he)(he)(he)(he)理、氫氣流量(liang)偏低(di)、爐(lu)子有(you)(you)(you)氧滲入，帶鋼(gang)(gang)入鍋溫(wen)度(du)偏低(di)，RWP段(duan)爐(lu)壓(ya)偏低(di)及爐(lu)門吸風、NOF段(duan)爐(lu)溫(wen)偏低(di)，油脂蒸發不盡、鋅(xin)(xin)(xin)(xin)(xin)鍋鋁含(han)量(liang)偏低(di)、機組速度(du)太快、還原不充分、鋅(xin)(xin)(xin)(xin)(xin)液中(zhong)停留時間(jian)太短、鍍(du)(du)層(ceng)偏厚。白銹和黑(hei)斑產(chan)生的原因有(you)(you)(you)：黑(hei)斑是白銹進一(yi)步氧化形成的鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)的特點與用途。鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)卷板(ban)(ban)是以(yi)熱(re)軋(ya)鋼(gang)(gang)帶或冷(leng)軋(ya)鋼(gang)(gang)帶為基(ji)板(ban)(ban)，經過連續(xu)熱(re)浸鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)工藝(yi)而生產(chan)出來(lai)的， 產(chan)品具有(you)(you)(you)耐腐蝕(shi)強、 表面(mian)質量(liang)好、有(you)(you)(you)利于深加工、經濟(ji)實(shi)用等特點。

鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)是為防止鋼(gang)板(ban)(ban)(ban)(ban)表面(mian)遭受腐蝕，延長其(qi)(qi)(qi)使(shi)(shi)用壽命，在(zai)(zai)鋼(gang)板(ban)(ban)(ban)(ban)表面(mian)涂(tu)以(yi)一(yi)(yi)層(ceng)金(jin)(jin)(jin)屬鋅(xin)(xin)(xin)，這種(zhong)(zhong)涂(tu)鋅(xin)(xin)(xin)的(de)(de)(de)(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)。鋼(gang)板(ban)(ban)(ban)(ban)也是用熱(re)浸法(fa)制(zhi)(zhi)造，但(dan)在(zai)(zai)出槽(cao)后(hou)，立即(ji)把它加熱(re)到500℃左右，使(shi)(shi)其(qi)(qi)(qi)生成(cheng)(cheng)(cheng)鋅(xin)(xin)(xin)和(he)(he)鐵的(de)(de)(de)(de)合(he)(he)金(jin)(jin)(jin)被膜。這種(zhong)(zhong)鍍(du)(du)(du)鋅(xin)(xin)(xin)卷(juan)具(ju)有(you)良好(hao)的(de)(de)(de)(de)涂(tu)料(liao)(liao)的(de)(de)(de)(de)密著性(xing)(xing)和(he)(he)焊接性(xing)(xing)。合(he)(he)金(jin)(jin)(jin)化鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。這種(zhong)(zhong)鋼(gang)板(ban)(ban)(ban)(ban)也是用熱(re)浸法(fa)制(zhi)(zhi)造，但(dan)在(zai)(zai)出槽(cao)后(hou)，立即(ji)把它加熱(re)到500℃左右，使(shi)(shi)其(qi)(qi)(qi)生成(cheng)(cheng)(cheng)鋅(xin)(xin)(xin)和(he)(he)鐵的(de)(de)(de)(de)合(he)(he)金(jin)(jin)(jin)被膜。這種(zhong)(zhong)鍍(du)(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)具(ju)有(you)良好(hao)的(de)(de)(de)(de)涂(tu)料(liao)(liao)的(de)(de)(de)(de)密著性(xing)(xing)和(he)(he)焊接性(xing)(xing)。熱(re)浸鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。將薄(bo)鋼(gang)板(ban)(ban)(ban)(ban)浸入熔(rong)解的(de)(de)(de)(de)鋅(xin)(xin)(xin)槽(cao)中，使(shi)(shi)其(qi)(qi)(qi)表面(mian)粘附(fu)一(yi)(yi)層(ceng)鋅(xin)(xin)(xin)的(de)(de)(de)(de)薄(bo)鋼(gang)板(ban)(ban)(ban)(ban)。目(mu)前主要(yao)采用連續鍍(du)(du)(du)鋅(xin)(xin)(xin)工藝生產，即(ji)把成(cheng)(cheng)(cheng)卷(juan)的(de)(de)(de)(de)鋼(gang)板(ban)(ban)(ban)(ban)連續浸在(zai)(zai)熔(rong)解有(you)鋅(xin)(xin)(xin)的(de)(de)(de)(de)鍍(du)(du)(du)槽(cao)中制(zhi)(zhi)成(cheng)(cheng)(cheng)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。合(he)(he)金(jin)(jin)(jin)、復(fu)(fu)合(he)(he)鍍(du)(du)(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。它是用鋅(xin)(xin)(xin)和(he)(he)其(qi)(qi)(qi)他(ta)金(jin)(jin)(jin)屬如鉛、鋅(xin)(xin)(xin)制(zhi)(zhi)成(cheng)(cheng)(cheng)合(he)(he)金(jin)(jin)(jin)乃至(zhi)復(fu)(fu)合(he)(he)鍍(du)(du)(du)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)鋼(gang)板(ban)(ban)(ban)(ban)。這種(zhong)(zhong)鋼(gang)板(ban)(ban)(ban)(ban)既具(ju)有(you)防銹性(xing)(xing)能，又有(you)良好(hao)的(de)(de)(de)(de)涂(tu)裝性(xing)(xing)能。

重(zhong)慶鍍(du)(du)(du)(du)鋅(xin)板(ban)(ban)(ban)(ban)(ban)按(an)生(sheng)產(chan)及加工(gong)方法可分(fen)為以下幾類： 熱浸鍍(du)(du)(du)(du)鋅(xin)鋼(gang)板(ban)(ban)(ban)(ban)(ban)。將薄鋼(gang)板(ban)(ban)(ban)(ban)(ban)浸入熔解的鋅(xin)槽中(zhong)，使(shi)其表面粘附一層鋅(xin)的薄鋼(gang)板(ban)(ban)(ban)(ban)(ban)。目前主要采用(yong)連續鍍(du)(du)(du)(du)鋅(xin)工(gong)藝(yi)生(sheng)產(chan)，即把成(cheng)卷的鋼(gang)板(ban)(ban)(ban)(ban)(ban)連續浸在熔解有(you)(you)(you)鋅(xin)的鍍(du)(du)(du)(du)槽中(zhong)制成(cheng)鍍(du)(du)(du)(du)鋅(xin)鋼(gang)板(ban)(ban)(ban)(ban)(ban)； 合(he)(he)金化鍍(du)(du)(du)(du)鋅(xin)鋼(gang)板(ban)(ban)(ban)(ban)(ban)。為克服(fu)單面未涂鋅(xin)的缺點，又有(you)(you)(you)一種在另面涂以薄層鋅(xin)的鍍(du)(du)(du)(du)鋅(xin)板(ban)(ban)(ban)(ban)(ban)，即雙面差鍍(du)(du)(du)(du)鋅(xin)板(ban)(ban)(ban)(ban)(ban)；合(he)(he)金、復(fu)合(he)(he)鍍(du)(du)(du)(du)鋅(xin)鋼(gang)板(ban)(ban)(ban)(ban)(ban)。它(ta)是(shi)用(yong)鋅(xin)和其他金屬如鉛(qian)、鋅(xin)制成(cheng)合(he)(he)金乃至復(fu)合(he)(he)鍍(du)(du)(du)(du)成(cheng)的鋼(gang)板(ban)(ban)(ban)(ban)(ban)。這種鋼(gang)板(ban)(ban)(ban)(ban)(ban)既具(ju)有(you)(you)(you)防銹性能，又有(you)(you)(you)良(liang)好(hao)的涂裝性能。