鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)是(shi)為防(fang)止鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)表(biao)面(mian)遭受(shou)腐蝕，延(yan)長其(qi)使(shi)(shi)用(yong)(yong)壽命(ming)，在鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)表(biao)面(mian)涂以一層(ceng)金屬鋅(xin)(xin)(xin)(xin)，這種涂鋅(xin)(xin)(xin)(xin)的(de)(de)薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)稱為鍍鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)也(ye)是(shi)用(yong)(yong)熱浸(jin)法(fa)制造，但在出槽后(hou)，立即把它加(jia)(jia)熱到500℃左右(you)，使(shi)(shi)其(qi)生(sheng)成(cheng)鋅(xin)(xin)(xin)(xin)和(he)(he)鐵的(de)(de)合(he)金被(bei)膜(mo)。這種鍍鋅(xin)(xin)(xin)(xin)卷具(ju)有(you)良好的(de)(de)涂料(liao)的(de)(de)密著性(xing)和(he)(he)焊接性(xing)。合(he)金化鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。這種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)也(ye)是(shi)用(yong)(yong)熱浸(jin)法(fa)制造，但在出槽后(hou)，立即把它加(jia)(jia)熱到500℃左右(you)，使(shi)(shi)其(qi)生(sheng)成(cheng)鋅(xin)(xin)(xin)(xin)和(he)(he)鐵的(de)(de)合(he)金被(bei)膜(mo)。這種鍍鋅(xin)(xin)(xin)(xin)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)具(ju)有(you)良好的(de)(de)涂料(liao)的(de)(de)密著性(xing)和(he)(he)焊接性(xing)。熱浸(jin)鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。將薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)浸(jin)入(ru)熔(rong)解(jie)的(de)(de)鋅(xin)(xin)(xin)(xin)槽中(zhong)，使(shi)(shi)其(qi)表(biao)面(mian)粘附一層(ceng)鋅(xin)(xin)(xin)(xin)的(de)(de)薄鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。目前(qian)主要采用(yong)(yong)連(lian)續(xu)鍍鋅(xin)(xin)(xin)(xin)工藝生(sheng)產，即把成(cheng)卷的(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)連(lian)續(xu)浸(jin)在熔(rong)解(jie)有(you)鋅(xin)(xin)(xin)(xin)的(de)(de)鍍槽中(zhong)制成(cheng)鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。合(he)金、復(fu)合(he)鍍鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。它是(shi)用(yong)(yong)鋅(xin)(xin)(xin)(xin)和(he)(he)其(qi)他(ta)金屬如鉛、鋅(xin)(xin)(xin)(xin)制成(cheng)合(he)金乃至復(fu)合(he)鍍成(cheng)的(de)(de)鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)。這種鋼(gang)(gang)(gang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)(ban)既具(ju)有(you)防(fang)銹性(xing)能，又(you)有(you)良好的(de)(de)涂裝(zhuang)性(xing)能。

熱(re)(re)鍍(du)(du)鋅(xin)(xin)板和電(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)板在鍍(du)(du)鋅(xin)(xin)量(liang)上(shang)有很(hen)大的(de)(de)差別(bie)，就像(xiang)山東彩(cai)涂(tu)卷(juan)）。熱(re)(re)鍍(du)(du)鋅(xin)(xin)的(de)(de)鍍(du)(du)鋅(xin)(xin)量(liang)不可(ke)能太(tai)小(xiao)，一(yi)般(ban)較小(xiao)為(wei)(wei)雙(shuang)面50～60g／m2，較大可(ke)達(da)600g／m2。電(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)板的(de)(de)鍍(du)(du)鋅(xin)(xin)層可(ke)以很(hen)薄，較小(xiao)達(da)15g／m2，但要求(qiu)鍍(du)(du)層較厚(hou)的(de)(de)話則生(sheng)產(chan)線(xian)速度很(hen)慢，不適應現代化機組的(de)(de)工藝特點，一(yi)般(ban)較大為(wei)(wei)lO0g／m2左(zuo)右。正(zheng)因為(wei)(wei)如此(ci)，電(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)板的(de)(de)生(sheng)產(chan)受到(dao)很(hen)大的(de)(de)限制。工一(yi)般(ban)電(dian)(dian)(dian)鍍(du)(du)鋅(xin)(xin)比較多(duo)，適用于(yu)(yu)小(xiao)部(bu)(bu)件(jian)；熱(re)(re)鍍(du)(du)鋅(xin)(xin)一(yi)般(ban)用于(yu)(yu)電(dian)(dian)(dian)力(li)設備(bei)和構件(jian)，適用于(yu)(yu)大的(de)(de)部(bu)(bu)件(jian)和設備(bei)。當然(ran)他們(men)的(de)(de)價格也相對便宜一(yi)些。建(jian)設部(bu)(bu)已正(zheng)式下文，淘汰技術落后的(de)(de)冷(leng)鍍(du)(du)鋅(xin)(xin)管(guan)，不準用冷(leng)鍍(du)(du)鋅(xin)(xin)管(guan)作水(shui)、煤(mei)氣(qi)管(guan)。

由于我國鋅資源(yuan)比(bi)較豐(feng)富，鍍(du)(du)鋅又是(shi)一種價(jia)廉(lian)、能防銹，又能裝飾(shi)的高性(xing)價(jia)比(bi)鍍(du)(du)種，因而在汽車(che)、機(ji)(ji)械(xie)(xie)、電子(zi)、船舶、儀表、輕工(gong)等(deng)工(gong)業(ye)部門得到廣泛的應用(yong)。如機(ji)(ji)械(xie)(xie)零件(jian)、低(di)壓電器(qi)(qi)、高壓開關、緊(jin)固(gu)連接件(jian)、鋼(gang)鐵結構(gou)件(jian)、建筑五金、農業(ye)機(ji)(ji)械(xie)(xie)、輕工(gong)產品等(deng)都離(li)不開鍍(du)(du)鋅鈍化制品。鍍(du)(du)鋅板卷(juan)因此可(ke)分為(wei)熱軋(ya)鍍(du)(du)鋅板卷(juan)和冷軋(ya)熱鍍(du)(du)鋅板卷(juan)，它(ta)們主要用(yong)于建筑、家(jia)電、汽車(che)、容器(qi)(qi)、交通及家(jia)業(ye)等(deng)領域(yu)。特(te)別(bie)是(shi)鋼(gang)結構(gou)建筑、汽車(che)制造、鋼(gang)板倉制造等(deng)行業(ye)。 重慶鍍(du)(du)鋅卷(juan)特(te)點(dian)主要為(wei)：耐腐蝕強、表面質量好(hao)、得利于深加工(gong)、經濟實用(yong)等(deng)。

彭州樓承板重慶樓承板分兩種。一種是把樓承板當做承受拉力的鋼筋計算的，另外一種是僅把樓承板作為模板計算而不參與受力的。做模板計算的比較簡單，直接按照跨度頂就行了。2米以下選0.8的，2-3米的選1.0的。樓承板廠家樓承板(ban)(ban)作為(wei)受力鋼筋計(ji)(ji)算(suan)，就按照模板(ban)(ban)的選用樓承板(ban)(ban)（或者加厚且只能(neng)加厚），然后在計(ji)(ji)算(suan)配筋的時(shi)候可以按照面積減少鋼筋用量。樓承板(ban)(ban)不能(neng)單獨計(ji)(ji)算(suan)的，它和(he)整個樓板(ban)(ban)是一(yi)個體系的。