熱(re)鍍(du)(du)鋅(xin)生產(chan)發展(zhan)一直處于滯后狀(zhuang)態(tai)。20世(shi)紀(ji)50年(nian)代到60年(nian)代陸(lu)續建(jian)(jian)成(cheng)了(le)13條(tiao)單張鋼(gang)板熔劑法熱(re)鍍(du)(du)鋅(xin)機組，能力為10萬(wan)t/a，但因產(chan)量低(di)、成(cheng)本(ben)高(gao)、質量差、污染環(huan)境、經(jing)濟效益差等缺陷(xian)已先(xian)后停(ting)、轉產(chan)。從(cong)(cong)20世(shi)紀(ji)70年(nian)代末，我國(guo)才開(kai)始建(jian)(jian)造大型(xing)寬帶(dai)熱(re)鍍(du)(du)鋅(xin)機組。熱(re)鍍(du)(du)鋅(xin)帶(dai)鋼(gang)在我國(guo)市場一直是緊缺品種。從(cong)(cong)20世(shi)紀(ji)90年(nian)代中期(qi)以來，每年(nian)都要從(cong)(cong)國(guo)外進口80-100萬(wan)t左右。隨(sui)著國(guo)內(nei)經(jing)濟的發展(zhan)，尤其是汽車、家電及(ji)建(jian)(jian)筑業的發展(zhan)，對(dui)鍍(du)(du)鋅(xin)帶(dai)鋼(gang)的需求量也大大增(zeng)加。

熱鍍(du)(du)鋅(xin)(xin)(xin)板(ban)和(he)電(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)在(zai)鍍(du)(du)鋅(xin)(xin)(xin)量上(shang)有很大(da)的(de)差別，就像(xiang)山(shan)東(dong)彩涂(tu)卷）。熱鍍(du)(du)鋅(xin)(xin)(xin)的(de)鍍(du)(du)鋅(xin)(xin)(xin)量不(bu)可(ke)能太小(xiao)，一般(ban)較(jiao)(jiao)小(xiao)為雙面50～60g／m2，較(jiao)(jiao)大(da)可(ke)達(da)(da)600g／m2。電(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)的(de)鍍(du)(du)鋅(xin)(xin)(xin)層(ceng)可(ke)以很薄，較(jiao)(jiao)小(xiao)達(da)(da)15g／m2，但(dan)要求鍍(du)(du)層(ceng)較(jiao)(jiao)厚的(de)話則生(sheng)產線(xian)速度很慢，不(bu)適應現代化機組的(de)工藝特點，一般(ban)較(jiao)(jiao)大(da)為lO0g／m2左(zuo)右。正因為如此(ci)，電(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)板(ban)的(de)生(sheng)產受(shou)到很大(da)的(de)限制。工一般(ban)電(dian)(dian)鍍(du)(du)鋅(xin)(xin)(xin)比(bi)較(jiao)(jiao)多，適用(yong)于(yu)(yu)小(xiao)部件(jian)(jian)；熱鍍(du)(du)鋅(xin)(xin)(xin)一般(ban)用(yong)于(yu)(yu)電(dian)(dian)力設(she)備(bei)和(he)構件(jian)(jian)，適用(yong)于(yu)(yu)大(da)的(de)部件(jian)(jian)和(he)設(she)備(bei)。當然他們的(de)價格也相對便宜(yi)一些(xie)。建設(she)部已正式(shi)下文(wen)，淘(tao)汰技術落后的(de)冷鍍(du)(du)鋅(xin)(xin)(xin)管(guan)，不(bu)準(zhun)用(yong)冷鍍(du)(du)鋅(xin)(xin)(xin)管(guan)作水、煤氣管(guan)。

鍍鋅管批發鍍鋅鋼板是為防止鋼板表面遭受腐蝕，延長其使用壽命，在鋼板表面涂以一層金屬鋅，這種涂鋅的薄鋼板稱為鍍鋅板。廣安攀華鍍鋅管鋼(gang)板(ban)(ban)(ban)(ban)也是(shi)用(yong)(yong)(yong)熱(re)(re)浸(jin)(jin)(jin)法制(zhi)(zhi)造(zao)(zao)，但在出槽(cao)后，立即(ji)(ji)把它加熱(re)(re)到(dao)500℃左(zuo)右，使(shi)其(qi)生成(cheng)鋅(xin)(xin)(xin)和(he)鐵的(de)(de)合(he)金(jin)被膜(mo)。這(zhe)種(zhong)(zhong)鍍(du)鋅(xin)(xin)(xin)卷(juan)具(ju)有(you)良(liang)好的(de)(de)涂(tu)(tu)料(liao)的(de)(de)密著(zhu)性(xing)和(he)焊接性(xing)。合(he)金(jin)化鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。這(zhe)種(zhong)(zhong)鋼(gang)板(ban)(ban)(ban)(ban)也是(shi)用(yong)(yong)(yong)熱(re)(re)浸(jin)(jin)(jin)法制(zhi)(zhi)造(zao)(zao)，但在出槽(cao)后，立即(ji)(ji)把它加熱(re)(re)到(dao)500℃左(zuo)右，使(shi)其(qi)生成(cheng)鋅(xin)(xin)(xin)和(he)鐵的(de)(de)合(he)金(jin)被膜(mo)。這(zhe)種(zhong)(zhong)鍍(du)鋅(xin)(xin)(xin)板(ban)(ban)(ban)(ban)具(ju)有(you)良(liang)好的(de)(de)涂(tu)(tu)料(liao)的(de)(de)密著(zhu)性(xing)和(he)焊接性(xing)。熱(re)(re)浸(jin)(jin)(jin)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。將薄鋼(gang)板(ban)(ban)(ban)(ban)浸(jin)(jin)(jin)入熔解(jie)的(de)(de)鋅(xin)(xin)(xin)槽(cao)中(zhong)，使(shi)其(qi)表面粘附一層鋅(xin)(xin)(xin)的(de)(de)薄鋼(gang)板(ban)(ban)(ban)(ban)。目前主要采用(yong)(yong)(yong)連續鍍(du)鋅(xin)(xin)(xin)工藝生產(chan)，即(ji)(ji)把成(cheng)卷(juan)的(de)(de)鋼(gang)板(ban)(ban)(ban)(ban)連續浸(jin)(jin)(jin)在熔解(jie)有(you)鋅(xin)(xin)(xin)的(de)(de)鍍(du)槽(cao)中(zhong)制(zhi)(zhi)成(cheng)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。合(he)金(jin)、復合(he)鍍(du)鋅(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)(ban)。它是(shi)用(yong)(yong)(yong)鋅(xin)(xin)(xin)和(he)其(qi)他(ta)金(jin)屬(shu)如鉛、鋅(xin)(xin)(xin)制(zhi)(zhi)成(cheng)合(he)金(jin)乃至復合(he)鍍(du)成(cheng)的(de)(de)鋼(gang)板(ban)(ban)(ban)(ban)。這(zhe)種(zhong)(zhong)鋼(gang)板(ban)(ban)(ban)(ban)既具(ju)有(you)防(fang)銹性(xing)能(neng)，又有(you)良(liang)好的(de)(de)涂(tu)(tu)裝性(xing)能(neng)。

樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)習慣主體鋼(gang)結構快速(su)施工(gong)的(de)要求，能(neng)夠(gou)在(zai)(zai)短時間內提(ti)供(gong)堅定(ding)的(de)作(zuo)(zuo)(zuo)業渠道(dao)，并可(ke)采用多個(ge)樓(lou)(lou)(lou)層(ceng)(ceng)鋪設壓型鋼(gang)板(ban)(ban)(ban)，分(fen)層(ceng)(ceng)澆筑(zhu)混(hun)凝土(tu)板(ban)(ban)(ban)的(de)流水施工(gong)。在(zai)(zai)運用階段樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)作(zuo)(zuo)(zuo)為混(hun)凝土(tu)樓(lou)(lou)(lou)板(ban)(ban)(ban)的(de)受拉鋼(gang)筋，也提(ti)高(gao)了樓(lou)(lou)(lou)板(ban)(ban)(ban)的(de)剛度，節省了鋼(gang)筋和混(hun)凝土(tu)的(de)用量。樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)上面(mian)能(neng)夠(gou)鋪設保(bao)溫，隔音，隔熱(re)，隔振等資(zi)料。改進樓(lou)(lou)(lou)面(mian)性能(neng)充分(fen)發揮鋼(gang)的(de)杰出(chu)的(de)抗(kang)(kang)拉強度和延(yan)性及(ji)混(hun)凝土(tu)優良的(de)抗(kang)(kang)壓強度和較大(da)(da)(da)的(de)剛度。壓型板(ban)(ban)(ban)表面(mian)壓紋使樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)與混(hun)凝土(tu)之(zhi)間產生大(da)(da)(da)的(de)結合力(li)，使二者形(xing)成整(zheng)體，配以(yi)加勁肋，使樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)體系(xi)具有高(gao)強承(cheng)載力(li)。在(zai)(zai)懸臂條(tiao)件下，樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)僅作(zuo)(zuo)(zuo)為性模板(ban)(ban)(ban)。懸挑的(de)長度可(ke)根(gen)據樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)的(de)截(jie)面(mian)特性來定(ding)。為了避免懸挑板(ban)(ban)(ban)的(de)開(kai)裂，需在(zai)(zai)支座處依結構工(gong)程(cheng)師的(de)規劃配上負筋。本公司樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)已通過(guo)國家(jia)固定(ding)救(jiu)活體系(xi)及(ji)耐(nai)火構件質量檢測中心的(de)耐(nai)火檢測，作(zuo)(zuo)(zuo)為組(zu)合樓(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)無需防火噴涂，因而大(da)(da)(da)大(da)(da)(da)降低了工(gong)程(cheng)造(zao)價(jia)。

重慶(qing)鍍鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)按(an)生(sheng)產及加工方法可分為以下幾類： 熱(re)浸鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。將薄(bo)鋼(gang)(gang)板(ban)(ban)(ban)(ban)浸入熔(rong)解的(de)(de)(de)鋅(xin)(xin)(xin)(xin)槽(cao)中，使其表面(mian)粘(zhan)附一層鋅(xin)(xin)(xin)(xin)的(de)(de)(de)薄(bo)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。目前(qian)主要采(cai)用連續(xu)鍍鋅(xin)(xin)(xin)(xin)工藝生(sheng)產，即把成卷的(de)(de)(de)鋼(gang)(gang)板(ban)(ban)(ban)(ban)連續(xu)浸在熔(rong)解有(you)(you)鋅(xin)(xin)(xin)(xin)的(de)(de)(de)鍍槽(cao)中制成鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)； 合(he)金(jin)化(hua)鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。為克服單面(mian)未(wei)涂鋅(xin)(xin)(xin)(xin)的(de)(de)(de)缺點，又有(you)(you)一種(zhong)在另面(mian)涂以薄(bo)層鋅(xin)(xin)(xin)(xin)的(de)(de)(de)鍍鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)，即雙面(mian)差鍍鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)；合(he)金(jin)、復合(he)鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。它是用鋅(xin)(xin)(xin)(xin)和其他金(jin)屬如鉛、鋅(xin)(xin)(xin)(xin)制成合(he)金(jin)乃至(zhi)復合(he)鍍成的(de)(de)(de)鋼(gang)(gang)板(ban)(ban)(ban)(ban)。這種(zhong)鋼(gang)(gang)板(ban)(ban)(ban)(ban)既(ji)具(ju)有(you)(you)防銹性能，又有(you)(you)良(liang)好的(de)(de)(de)涂裝性能。