熱(re)鍍(du)鋅卷板(ban)現貨(huo)消息(xi)：熱(re)鍍(du)鋅產品廣泛(fan)用于建筑(zhu)、家電、車(che)船、容器制(zhi)造(zao)業(ye)(ye)、機電業(ye)(ye)等，幾(ji)乎涉及到衣(yi)食住行各個(ge)領(ling)域。近年來，世界鍍(du)鋅鋼板(ban)需求(qiu)量(liang)不斷增加，產量(liang)增長也很快，在(zai)美、日等鋼材(cai)(cai)生產大國，熱(re)鍍(du)鋅鋼板(ban)在(zai)鋼材(cai)(cai)中(zhong)所(suo)占比例已高達13%-15%。 熱(re)鍍(du)鋅卷板(ban)現貨(huo)消息(xi)：近來，汽車(che)行業(ye)(ye)越(yue)來越(yue)重(zhong)視材(cai)(cai)料的使用壽命(ming)，用涂漆冷軋鋼板(ban)已不能滿足(zu)耐腐(fu)蝕方面的要求(qiu)。在(zai)這種(zhong)情況下，耐腐(fu)蝕性優良且成本低廉的熱(re)鍍(du)鋅板(ban)開始(shi)普遍受到了汽車(che)廠家的青睞。

鍍鋅帶鋼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%。南充鍍鋅帶鋼在連(lian)續(xu)機組(zu)上以(yi)冷軋帶鋼(gang)，鍍(du)鋅帶鋼(gang)（電鍍(du)鋅和熱鍍(du)鋅）為(wei)基(ji)板(ban)(ban)，經過(guo)表面預(yu)處理（脫脂和化學處理），用(yong)輥涂(tu)(tu)的方法，涂(tu)(tu)上一層(ceng)(ceng)(ceng)或多層(ceng)(ceng)(ceng)液態(tai)涂(tu)(tu)料，經過(guo)烘烤和冷卻所得的板(ban)(ban)材即(ji)為(wei)涂(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)板(ban)(ban)。由于涂(tu)(tu)層(ceng)(ceng)(ceng)可以(yi)有各種不(bu)同的顏色，習(xi)慣上把(ba)涂(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)板(ban)(ban)叫做(zuo)彩色涂(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)板(ban)(ban)。又由于涂(tu)(tu)層(ceng)(ceng)(ceng)是在鋼(gang)板(ban)(ban)成型加工(gong)之前進行的，在國(guo)外這叫做(zuo)預(yu)涂(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)板(ban)(ban)。

鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)板的(de)表(biao)面(mian)鍍(du)(du)鋅(xin)(xin)(xin)主要采(cai)用(yong)的(de)方(fang)法(fa)(fa)是熱(re)鍍(du)(du)鋅(xin)(xin)(xin)。熱(re)鍍(du)(du)鋅(xin)(xin)(xin)是由較古老的(de)熱(re)鍍(du)(du)方(fang)法(fa)(fa)發(fa)展而來(lai)的(de)，自從(cong)1836年(nian)法(fa)(fa)國把熱(re)鍍(du)(du)鋅(xin)(xin)(xin)應用(yong)于工業以來(lai)，已經有一百(bai)七十年(nian)的(de)歷史了(le)。然而，熱(re)鍍(du)(du)鋅(xin)(xin)(xin)工業是近三十年(nian)來(lai)伴隨冷(leng)軋(ya)帶鋼(gang)的(de)飛速發(fa)展而得到(dao)了(le)大規模發(fa)展。鍍(du)(du)鋅(xin)(xin)(xin)溶(rong)液(ye)有氰(qing)(qing)(qing)(qing)化(hua)(hua)物(wu)(wu)(wu)鍍(du)(du)液(ye)和(he)(he)無氰(qing)(qing)(qing)(qing)鍍(du)(du)液(ye)兩類。氰(qing)(qing)(qing)(qing)化(hua)(hua)物(wu)(wu)(wu)鍍(du)(du)液(ye)中(zhong)分微氰(qing)(qing)(qing)(qing)、低(di)氰(qing)(qing)(qing)(qing)、中(zhong)氰(qing)(qing)(qing)(qing)、和(he)(he)高氰(qing)(qing)(qing)(qing)幾類。無氰(qing)(qing)(qing)(qing)鍍(du)(du)液(ye)有堿(jian)性鋅(xin)(xin)(xin)酸(suan)(suan)鹽鍍(du)(du)液(ye)、銨鹽鍍(du)(du)液(ye)、硫酸(suan)(suan)鹽鍍(du)(du)液(ye)及(ji)無氨氯化(hua)(hua)物(wu)(wu)(wu)鍍(du)(du)液(ye)等。氰(qing)(qing)(qing)(qing)化(hua)(hua)鍍(du)(du)鋅(xin)(xin)(xin)溶(rong)液(ye)均鍍(du)(du)能力好，得到(dao)的(de)鍍(du)(du)層光(guang)滑細致(zhi)，在生產中(zhong)被長期采(cai)用(yong)。但由于氰(qing)(qing)(qing)(qing)化(hua)(hua)物(wu)(wu)(wu)劇(ju)毒，對環境污(wu)染嚴重，近年(nian)來(lai)已趨(qu)向于采(cai)用(yong)低(di)氰(qing)(qing)(qing)(qing)、微氰(qing)(qing)(qing)(qing)、無氰(qing)(qing)(qing)(qing)鍍(du)(du)鋅(xin)(xin)(xin)溶(rong)液(ye)。

鍍(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)是(shi)(shi)為防止鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)表面(mian)遭受腐蝕(shi)，延長其(qi)使(shi)用(yong)壽命，在鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)表面(mian)涂(tu)以一層(ceng)金(jin)(jin)屬鋅(xin)(xin)，這(zhe)(zhe)種涂(tu)鋅(xin)(xin)的(de)(de)(de)(de)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)稱為鍍(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)。鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)也(ye)是(shi)(shi)用(yong)熱(re)浸(jin)法(fa)制造，但(dan)在出槽后(hou)，立即把它(ta)(ta)加(jia)熱(re)到500℃左(zuo)右，使(shi)其(qi)生(sheng)成(cheng)(cheng)鋅(xin)(xin)和鐵的(de)(de)(de)(de)合(he)(he)(he)金(jin)(jin)被膜。這(zhe)(zhe)種鍍(du)(du)鋅(xin)(xin)卷具有良(liang)好(hao)的(de)(de)(de)(de)涂(tu)料的(de)(de)(de)(de)密(mi)著性和焊(han)接性。合(he)(he)(he)金(jin)(jin)化鍍(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。這(zhe)(zhe)種鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)也(ye)是(shi)(shi)用(yong)熱(re)浸(jin)法(fa)制造，但(dan)在出槽后(hou)，立即把它(ta)(ta)加(jia)熱(re)到500℃左(zuo)右，使(shi)其(qi)生(sheng)成(cheng)(cheng)鋅(xin)(xin)和鐵的(de)(de)(de)(de)合(he)(he)(he)金(jin)(jin)被膜。這(zhe)(zhe)種鍍(du)(du)鋅(xin)(xin)板(ban)(ban)(ban)具有良(liang)好(hao)的(de)(de)(de)(de)涂(tu)料的(de)(de)(de)(de)密(mi)著性和焊(han)接性。熱(re)浸(jin)鍍(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。將薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)浸(jin)入熔(rong)解的(de)(de)(de)(de)鋅(xin)(xin)槽中(zhong)，使(shi)其(qi)表面(mian)粘附一層(ceng)鋅(xin)(xin)的(de)(de)(de)(de)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。目前主要采用(yong)連續(xu)鍍(du)(du)鋅(xin)(xin)工藝生(sheng)產，即把成(cheng)(cheng)卷的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)連續(xu)浸(jin)在熔(rong)解有鋅(xin)(xin)的(de)(de)(de)(de)鍍(du)(du)槽中(zhong)制成(cheng)(cheng)鍍(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。合(he)(he)(he)金(jin)(jin)、復(fu)(fu)合(he)(he)(he)鍍(du)(du)鋅(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。它(ta)(ta)是(shi)(shi)用(yong)鋅(xin)(xin)和其(qi)他金(jin)(jin)屬如鉛、鋅(xin)(xin)制成(cheng)(cheng)合(he)(he)(he)金(jin)(jin)乃至復(fu)(fu)合(he)(he)(he)鍍(du)(du)成(cheng)(cheng)的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。這(zhe)(zhe)種鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)既具有防銹(xiu)性能，又(you)有良(liang)好(hao)的(de)(de)(de)(de)涂(tu)裝性能。