鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼板的表面(mian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)主(zhu)要采用的方法(fa)是(shi)(shi)(shi)熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)。熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)是(shi)(shi)(shi)由(you)較古(gu)老的熱鍍(du)(du)方法(fa)發展而來(lai)(lai)的，自從(cong)1836年(nian)法(fa)國把(ba)熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)應用于工業以來(lai)(lai)，已(yi)經(jing)有一(yi)百七(qi)十年(nian)的歷史(shi)了。然而，熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)工業是(shi)(shi)(shi)近(jin)三十年(nian)來(lai)(lai)伴隨冷軋(ya)帶(dai)鋼的飛速發展而得到了大規模發展。鍍(du)(du)鋅(xin)(xin)(xin)(xin)溶液有氰(qing)化(hua)(hua)物鍍(du)(du)液和無(wu)氰(qing)鍍(du)(du)液兩(liang)類。氰(qing)化(hua)(hua)物鍍(du)(du)液中分微氰(qing)、低氰(qing)、中氰(qing)、和高氰(qing)幾類。無(wu)氰(qing)鍍(du)(du)液有堿性鋅(xin)(xin)(xin)(xin)酸鹽(yan)鍍(du)(du)液、銨鹽(yan)鍍(du)(du)液、硫(liu)酸鹽(yan)鍍(du)(du)液及無(wu)氨(an)氯化(hua)(hua)物鍍(du)(du)液等。氰(qing)化(hua)(hua)鍍(du)(du)鋅(xin)(xin)(xin)(xin)溶液均(jun)鍍(du)(du)能(neng)力好(hao)，得到的鍍(du)(du)層光(guang)滑(hua)細致，在(zai)生產中被長期采用。但由(you)于氰(qing)化(hua)(hua)物劇毒(du)，對環境污染嚴(yan)重(zhong)，近(jin)年(nian)來(lai)(lai)已(yi)趨(qu)向于采用低氰(qing)、微氰(qing)、無(wu)氰(qing)鍍(du)(du)鋅(xin)(xin)(xin)(xin)溶液。

樓(lou)(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)組合(he)板(ban)(ban)(ban)是一種十分合(he)理的結構方(fang)式，它能(neng)(neng)(neng)夠(gou)按其(qi)各(ge)組成(cheng)部件(jian)所(suo)處(chu)的方(fang)位和(he)特色，充(chong)分發(fa)揮鋼材抗(kang)拉和(he)混(hun)凝(ning)土抗(kang)壓功(gong)(gong)能(neng)(neng)(neng)好的長處(chu)，并(bing)具(ju)有(you)(you)杰出(chu)的抗(kang)震功(gong)(gong)能(neng)(neng)(neng)、施工(gong)功(gong)(gong)能(neng)(neng)(neng)。這(zhe)種結構現(xian)在被(bei)廣(guang)泛運用(yong)于國(guo)內外修建中(zhong)，但在國(guo)內大都將(jiang)樓(lou)(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)當(dang)作(zuo)模板(ban)(ban)(ban)運用(yong)，而沒有(you)(you)充(chong)分發(fa)揮樓(lou)(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)的效果(guo)。 與一般(ban)鋼筋混(hun)凝(ning)土樓(lou)(lou)(lou)(lou)板(ban)(ban)(ban)比(bi)較，樓(lou)(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)組合(he)樓(lou)(lou)(lou)(lou)板(ban)(ban)(ban)具(ju)備以下長處(chu)：樓(lou)(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)能(neng)(neng)(neng)夠(gou)作(zuo)為(wei)現(xian)澆混(hun)凝(ning)土的模板(ban)(ban)(ban)。這(zhe)樣就省掉了施工(gong)中(zhong)裝置和(he)撤除(chu)模板(ban)(ban)(ban)等(deng)工(gong)序，然(ran)后節約了時(shi)刻和(he)勞動(dong)力;當(dang)樓(lou)(lou)(lou)(lou)承(cheng)板(ban)(ban)(ban)裝置好今后將(jiang)能(neng)(neng)(neng)夠(gou)作(zuo)為(wei)施工(gong)平臺運用(yong)。

鍍鋁鋅板廠家熱鍍鋅卷板價格行業統計數據顯示，十一月國內粗鋼日均產量為兩百零九萬噸，環比下降3.3%，創出今年以來水平，但是當前減產受到季節性因素支撐，市場對數據有效性提出質疑。開遠鍍鋁鋅板鍍鋅卷工(gong)(gong)業品(pin)而言，近期陸續公(gong)布的(de)重要數據中(zhong)性(xing)偏多。但值得注意(yi)的(de)是，同年十一(yi)月熱鍍鋅卷板價格工(gong)(gong)業增(zeng)加值和(he)投資增(zeng)速放(fang)緩，進一(yi)步(bu)印證了國(guo)內(nei)總需求乏力，工(gong)(gong)業復蘇形勢不容(rong)樂觀。加上未來(lai)經濟結構調整等因素，工(gong)(gong)業品(pin)價格反(fan)彈高度將(jiang)有(you)限。傳統需求淡季(ji)效(xiao)應還在持續不斷地發(fa)酵，冬儲效(xiao)果不佳。雖然數據顯示供應壓力開始減輕(qing)，但是目前處于鋼(gang)鐵需求淡季(ji)，市(shi)場(chang)成交萎縮，下游采購遲遲未能有(you)效(xiao)跟進，市(shi)場(chang)信心(xin)不足(zu)，鍍鋅鋼(gang)板貿易(yi)商囤貨現象(xiang)也不明顯。

樓承(cheng)板(ban)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)首(shou)要(yao)(yao)起到防(fang)腐的(de)(de)(de)效(xiao)果，按(an)標準(zhun)組(zu)合(he)(he)樓板(ban)與非組(zu)合(he)(he)樓板(ban)壓型鋼板(ban)應選(xuan)(xuan)用(yong)熱鍍(du)(du)(du)(du)(du)鋅(xin)(xin)，不該選(xuan)(xuan)用(yong)電(dian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)鋼板(ban)，其(qi)雙面(mian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)層總含(han)量(liang)(liang)(liang)要(yao)(yao)滿足在使(shi)(shi)用(yong)期間不致(zhi)銹(xiu)損的(de)(de)(de)要(yao)(yao)求(qiu)。當(dang)(dang)作為非組(zu)合(he)(he)樓承(cheng)板(ban)時(shi)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)層含(han)量(liang)(liang)(liang)可選(xuan)(xuan)用(yong)較(jiao)低值;當(dang)(dang)為組(zu)合(he)(he)樓承(cheng)板(ban)時(shi)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)層含(han)量(liang)(liang)(liang)不該小于(yu)150g/m2。當(dang)(dang)為組(zu)合(he)(he)樓板(ban)且使(shi)(shi)用(yong)環境(jing)條(tiao)件較(jiao)為惡(e)劣時(shi)，鍍(du)(du)(du)(du)(du)鋅(xin)(xin)層含(han)量(liang)(liang)(liang)應選(xuan)(xuan)用(yong)上(shang)限值或(huo)(huo)更高(gao)值。更高(gao)的(de)(de)(de)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)要(yao)(yao)求(qiu)，如雙面(mian)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)量(liang)(liang)(liang)為300g/m2、350g/m2或(huo)(huo)鍍(du)(du)(du)(du)(du)鋁鋅(xin)(xin)(5%鋁)275g/m2、300g/m2等，較(jiao)高(gao)的(de)(de)(de)鍍(du)(du)(du)(du)(du)層量(liang)(liang)(liang)使(shi)(shi)組(zu)合(he)(he)樓板(ban)有更長(chang)耐久性(xing)，同等量(liang)(liang)(liang)的(de)(de)(de)鍍(du)(du)(du)(du)(du)鋁鋅(xin)(xin)的(de)(de)(de)防(fang)銹(xiu)蝕才能大(da)約兩倍于(yu)一(yi)般熱鍍(du)(du)(du)(du)(du)鋅(xin)(xin)。鍍(du)(du)(du)(du)(du)鋅(xin)(xin)量(liang)(liang)(liang)也不是(shi)越厚(hou)越好(hao)，當(dang)(dang)鍍(du)(du)(du)(du)(du)鋅(xin)(xin)量(liang)(liang)(liang)較(jiao)厚(hou)時(shi)，抗剪(jian)連接(jie)件栓釘(ding)的(de)(de)(de)焊接(jie)質量(liang)(liang)(liang)就很難保(bao)證，焊接(jie)時(shi)，宜選(xuan)(xuan)用(yong)局部除鋅(xin)(xin)處理措(cuo)施。