鍍鋅板批發熱鍍鋅板和電鍍鋅板在鍍鋅量上有很大的差別，就像山東彩涂卷）。熱鍍鋅的鍍鋅量不可能太小，一般較小為雙面50～60g／m2，較大可達600g／m2。江津鍍鋅板電鍍(du)鋅(xin)板(ban)的(de)鍍(du)鋅(xin)層可以(yi)很薄(bo)，較(jiao)小達15g／m2，但(dan)要求(qiu)鍍(du)層較(jiao)厚的(de)話則生產(chan)線速(su)度(du)很慢，不適(shi)應現(xian)代化機組的(de)工(gong)藝特點，一(yi)(yi)般(ban)較(jiao)大為lO0g／m2左右。正因(yin)為如(ru)此，電鍍(du)鋅(xin)板(ban)的(de)生產(chan)受(shou)到很大的(de)限制。工(gong)一(yi)(yi)般(ban)電鍍(du)鋅(xin)比較(jiao)多，適(shi)用(yong)(yong)(yong)于(yu)小部(bu)件(jian)；熱(re)鍍(du)鋅(xin)一(yi)(yi)般(ban)用(yong)(yong)(yong)于(yu)電力(li)設備(bei)和構(gou)件(jian)，適(shi)用(yong)(yong)(yong)于(yu)大的(de)部(bu)件(jian)和設備(bei)。當然(ran)他們的(de)價格也(ye)相對便宜一(yi)(yi)些。建設部(bu)已正式下文，淘汰技術落后的(de)冷(leng)(leng)鍍(du)鋅(xin)管(guan)(guan)，不準(zhun)用(yong)(yong)(yong)冷(leng)(leng)鍍(du)鋅(xin)管(guan)(guan)作水、煤氣管(guan)(guan)。

熱浸(jin)鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)將薄(bo)(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)浸(jin)入熔(rong)(rong)解(jie)的(de)(de)(de)(de)鋅(xin)(xin)(xin)槽中(zhong)，使其表(biao)面(mian)(mian)(mian)粘(zhan)附一層(ceng)鋅(xin)(xin)(xin)的(de)(de)(de)(de)薄(bo)(bo)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。目前主(zhu)要采用連(lian)續鍍(du)(du)鋅(xin)(xin)(xin)工藝(yi)生(sheng)產(chan)，即把成(cheng)卷的(de)(de)(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)連(lian)續浸(jin)在熔(rong)(rong)解(jie)有鋅(xin)(xin)(xin)的(de)(de)(de)(de)鍍(du)(du)槽中(zhong)制成(cheng)鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban);合金化鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。這(zhe)種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)也(ye)是用熱浸(jin)法(fa)制造(zao)，但在出槽后(hou)，立(li)即把它加熱到(dao)500 ℃左(zuo)右(you)，使其生(sheng)成(cheng)鋅(xin)(xin)(xin)和(he)鐵(tie)的(de)(de)(de)(de)合金被膜。這(zhe)種鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)具(ju)有良好(hao)的(de)(de)(de)(de)涂料的(de)(de)(de)(de)密(mi)著性和(he)焊(han)接性;電鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。用電鍍(du)(du)法(fa)制造(zao)這(zhe)種鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)具(ju)有良好(hao)的(de)(de)(de)(de)加工性。但鍍(du)(du)層(ceng)較(jiao)薄(bo)(bo)，耐腐蝕性不(bu)如熱浸(jin)法(fa)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban);單面(mian)(mian)(mian)鍍(du)(du)和(he)雙面(mian)(mian)(mian)差鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)。單面(mian)(mian)(mian)鍍(du)(du)鋅(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)，即只在一面(mian)(mian)(mian)鍍(du)(du)鋅(xin)(xin)(xin)的(de)(de)(de)(de)產(chan)品。在焊(han)接、涂裝、防銹處理、加工等方面(mian)(mian)(mian)，具(ju)有比雙面(mian)(mian)(mian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)好(hao)的(de)(de)(de)(de)適應性。

隨(sui)著鋼(gang)(gang)結(jie)構(gou)在(zai)建筑(zhu)材料中的(de)(de)(de)(de)(de)(de)興起，越(yue)(yue)來越(yue)(yue)多的(de)(de)(de)(de)(de)(de)人選擇(ze)使用鋼(gang)(gang)結(jie)構(gou)樓(lou)承(cheng)(cheng)板(ban)了(le)(le)，鋼(gang)(gang)結(jie)構(gou)構(gou)件工廠產(chan)業化(hua)生(sheng)產(chan)大大縮短了(le)(le)工程工期(qi)，而(er)樓(lou)板(ban)的(de)(de)(de)(de)(de)(de)施工方法(fa)卻成為影響(xiang)工期(qi)的(de)(de)(de)(de)(de)(de)重要(yao)因(yin)素。采用那(nei)一代樓(lou)承(cheng)(cheng)板(ban)對于樓(lou)板(ban)的(de)(de)(de)(de)(de)(de)耐火性能也(ye)有(you)區別。樓(lou)承(cheng)(cheng)板(ban)的(de)(de)(de)(de)(de)(de)厚度(du)一般都(dou)是(shi)按保險起見(jian)設計的(de)(de)(de)(de)(de)(de)比較厚，正常情況下鋼(gang)(gang)梁之間(jian)的(de)(de)(de)(de)(de)(de)跨度(du)在(zai)2m以內樓(lou)承(cheng)(cheng)板(ban)厚度(du)在(zai)0.75-0.8mm就(jiu)(jiu)可(ke)以了(le)(le)，2-2.5m樓(lou)承(cheng)(cheng)板(ban)厚度(du)用0.8-1.0就(jiu)(jiu)可(ke)以了(le)(le)，跨度(du)在(zai)3-4米(mi)樓(lou)承(cheng)(cheng)板(ban)厚度(du)用1.5mm，超過5m的(de)(de)(de)(de)(de)(de)跨度(du)是(shi)用臨時支撐，因(yin)素就(jiu)(jiu)是(shi)混泥(ni)土澆筑(zhu)的(de)(de)(de)(de)(de)(de)高(gao)度(du)，混泥(ni)土澆筑(zhu)的(de)(de)(de)(de)(de)(de)越(yue)(yue)高(gao)，樓(lou)承(cheng)(cheng)板(ban)所需(xu)要(yao)的(de)(de)(de)(de)(de)(de)厚度(du)也(ye)就(jiu)(jiu)越(yue)(yue)厚，還有(you)一個(ge)大家容易忽略的(de)(de)(de)(de)(de)(de)因(yin)素就(jiu)(jiu)是(shi)螺(luo)釘的(de)(de)(de)(de)(de)(de)好壞也(ye)是(shi)決定樓(lou)承(cheng)(cheng)板(ban)厚度(du)的(de)(de)(de)(de)(de)(de)，螺(luo)釘越(yue)(yue)好樓(lou)承(cheng)(cheng)板(ban)的(de)(de)(de)(de)(de)(de)承(cheng)(cheng)載力就(jiu)(jiu)越(yue)(yue)強。

鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)為(wei)基板(ban)(ban)(ban)的(de)彩涂(tu)(tu)(tu)(tu)(tu)鋼(gang)(gang)(gang)板(ban)(ban)(ban)，除有鋅(xin)保護外，鋅(xin)層(ceng)(ceng)(ceng)(ceng)(ceng)上(shang)的(de)有機(ji)涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)起了覆蓋隔(ge)離作用(yong)(yong)，可防止(zhi)鋼(gang)(gang)(gang)板(ban)(ban)(ban)生銹(xiu)，使(shi)用(yong)(yong)壽命(ming)(ming)比鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)更(geng)長，據介紹涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)的(de)使(shi)用(yong)(yong)壽命(ming)(ming)比鍍(du)(du)鋅(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)長50%。在(zai)連續機(ji)組上(shang)以(yi)冷(leng)軋(ya)帶鋼(gang)(gang)(gang)，鍍(du)(du)鋅(xin)帶鋼(gang)(gang)(gang)（電(dian)鍍(du)(du)鋅(xin)和(he)熱鍍(du)(du)鋅(xin)）為(wei)基板(ban)(ban)(ban)，經過表面預處(chu)理(li)(li)（脫脂和(he)化學處(chu)理(li)(li)），用(yong)(yong)輥(gun)涂(tu)(tu)(tu)(tu)(tu)的(de)方法，涂(tu)(tu)(tu)(tu)(tu)上(shang)一(yi)層(ceng)(ceng)(ceng)(ceng)(ceng)或多層(ceng)(ceng)(ceng)(ceng)(ceng)液態涂(tu)(tu)(tu)(tu)(tu)料，經過烘烤和(he)冷(leng)卻所得(de)的(de)板(ban)(ban)(ban)材即為(wei)涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)。由(you)于涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)可以(yi)有各種不(bu)同的(de)顏色，習慣上(shang)把涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)叫做(zuo)彩色涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)。又由(you)于涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)是在(zai)鋼(gang)(gang)(gang)板(ban)(ban)(ban)成型加工之前進行的(de)，在(zai)國外這叫做(zuo)預涂(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng)(ceng)鋼(gang)(gang)(gang)板(ban)(ban)(ban)。

熱鍍(du)鋅(xin)(xin)(xin)(xin)生產發展一直處(chu)于滯(zhi)后狀態。20世(shi)(shi)紀50年代(dai)到60年代(dai)陸續建成(cheng)了13條單張(zhang)鋼(gang)(gang)板熔劑法熱鍍(du)鋅(xin)(xin)(xin)(xin)機組(zu)，能力為10萬t/a，但因(yin)產量(liang)低、成(cheng)本高、質量(liang)差、污染環境、經(jing)(jing)濟效益差等(deng)缺陷已(yi)先后停、轉(zhuan)產。從20世(shi)(shi)紀70年代(dai)末，我(wo)(wo)國才開始建造(zao)大型寬(kuan)帶(dai)熱鍍(du)鋅(xin)(xin)(xin)(xin)機組(zu)。熱鍍(du)鋅(xin)(xin)(xin)(xin)帶(dai)鋼(gang)(gang)在我(wo)(wo)國市場一直是緊缺品(pin)種。從20世(shi)(shi)紀90年代(dai)中期以來，每年都要從國外進口(kou)80-100萬t左右。隨著國內經(jing)(jing)濟的發展，尤其是汽車(che)、家電及建筑業的發展，對鍍(du)鋅(xin)(xin)(xin)(xin)帶(dai)鋼(gang)(gang)的需求(qiu)量(liang)也大大增加。

鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)是(shi)為防止鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)表面(mian)遭受腐蝕，延長其(qi)使用(yong)壽命，在(zai)(zai)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)表面(mian)涂(tu)以一(yi)層金(jin)屬(shu)鋅(xin)(xin)(xin)(xin)，這(zhe)種(zhong)(zhong)涂(tu)鋅(xin)(xin)(xin)(xin)的(de)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)稱為鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)。鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)也(ye)(ye)是(shi)用(yong)熱(re)浸(jin)(jin)法(fa)制(zhi)(zhi)造，但在(zai)(zai)出槽(cao)后(hou)，立(li)即(ji)把(ba)它加(jia)熱(re)到500℃左(zuo)右(you)(you)，使其(qi)生(sheng)(sheng)成(cheng)鋅(xin)(xin)(xin)(xin)和鐵(tie)的(de)合(he)金(jin)被(bei)膜(mo)。這(zhe)種(zhong)(zhong)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)卷(juan)具(ju)(ju)有良(liang)好(hao)的(de)涂(tu)料的(de)密(mi)著性(xing)(xing)和焊接性(xing)(xing)。合(he)金(jin)化(hua)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。這(zhe)種(zhong)(zhong)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)也(ye)(ye)是(shi)用(yong)熱(re)浸(jin)(jin)法(fa)制(zhi)(zhi)造，但在(zai)(zai)出槽(cao)后(hou)，立(li)即(ji)把(ba)它加(jia)熱(re)到500℃左(zuo)右(you)(you)，使其(qi)生(sheng)(sheng)成(cheng)鋅(xin)(xin)(xin)(xin)和鐵(tie)的(de)合(he)金(jin)被(bei)膜(mo)。這(zhe)種(zhong)(zhong)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)具(ju)(ju)有良(liang)好(hao)的(de)涂(tu)料的(de)密(mi)著性(xing)(xing)和焊接性(xing)(xing)。熱(re)浸(jin)(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。將(jiang)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)浸(jin)(jin)入(ru)熔解的(de)鋅(xin)(xin)(xin)(xin)槽(cao)中，使其(qi)表面(mian)粘附(fu)一(yi)層鋅(xin)(xin)(xin)(xin)的(de)薄鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。目前主要采用(yong)連續鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)工藝生(sheng)(sheng)產(chan)，即(ji)把(ba)成(cheng)卷(juan)的(de)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)連續浸(jin)(jin)在(zai)(zai)熔解有鋅(xin)(xin)(xin)(xin)的(de)鍍(du)(du)(du)(du)槽(cao)中制(zhi)(zhi)成(cheng)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。合(he)金(jin)、復合(he)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。它是(shi)用(yong)鋅(xin)(xin)(xin)(xin)和其(qi)他金(jin)屬(shu)如(ru)鉛、鋅(xin)(xin)(xin)(xin)制(zhi)(zhi)成(cheng)合(he)金(jin)乃至(zhi)復合(he)鍍(du)(du)(du)(du)成(cheng)的(de)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)。這(zhe)種(zhong)(zhong)鋼(gang)(gang)(gang)(gang)板(ban)(ban)(ban)既具(ju)(ju)有防銹性(xing)(xing)能，又有良(liang)好(hao)的(de)涂(tu)裝性(xing)(xing)能。