北京攀華鍍鋅管隨著鋼結構在建筑材料中的興起，越來越多的人選擇使用鋼結構樓承板了，鋼結構構件工廠產業化生產大大縮短了工程工期，而樓板的施工方法卻成為影響工期的重要因素。采用那一代樓承板對于樓板的耐火性能也有區別。鍍鋅管批發樓承(cheng)(cheng)板(ban)(ban)的(de)厚(hou)(hou)度(du)(du)(du)一般(ban)都是(shi)(shi)按保險起見設計的(de)比較厚(hou)(hou)，正(zheng)常情況下(xia)鋼梁之間的(de)跨(kua)度(du)(du)(du)在2m以內樓承(cheng)(cheng)板(ban)(ban)厚(hou)(hou)度(du)(du)(du)在0.75-0.8mm就(jiu)(jiu)可以了，2-2.5m樓承(cheng)(cheng)板(ban)(ban)厚(hou)(hou)度(du)(du)(du)用(yong)0.8-1.0就(jiu)(jiu)可以了，跨(kua)度(du)(du)(du)在3-4米(mi)樓承(cheng)(cheng)板(ban)(ban)厚(hou)(hou)度(du)(du)(du)用(yong)1.5mm，超過5m的(de)跨(kua)度(du)(du)(du)是(shi)(shi)用(yong)臨時支撐(cheng)，因素就(jiu)(jiu)是(shi)(shi)混泥土澆筑(zhu)的(de)高度(du)(du)(du)，混泥土澆筑(zhu)的(de)越(yue)高，樓承(cheng)(cheng)板(ban)(ban)所需要的(de)厚(hou)(hou)度(du)(du)(du)也就(jiu)(jiu)越(yue)厚(hou)(hou)，還有(you)一個(ge)大家(jia)容(rong)易(yi)忽略的(de)因素就(jiu)(jiu)是(shi)(shi)螺釘的(de)好壞也是(shi)(shi)決定樓承(cheng)(cheng)板(ban)(ban)厚(hou)(hou)度(du)(du)(du)的(de)，螺釘越(yue)好樓承(cheng)(cheng)板(ban)(ban)的(de)承(cheng)(cheng)載力就(jiu)(jiu)越(yue)強。

樓(lou)(lou)(lou)承板(ban)的使用(yong)(yong)是(shi)需要(yao)安裝(zhuang)的，那么(me)如果要(yao)安裝(zhuang)就要(yao)選擇合適的小配件，焊后栓(shuan)釘(ding)高(gao)度(du)(du)大于(yu)壓型鋼(gang)(gang)(gang)板(ban)波高(gao)30MM(留意(yi)挑選樓(lou)(lou)(lou)板(ban)的類型);栓(shuan)釘(ding)頂面(mian)混凝(ning)土保護層不(bu)小于(yu)15MM(留意(yi)樓(lou)(lou)(lou)板(ban)總厚(hou)度(du)(du))直徑不(bu)宜(yi)大于(yu)19MM。樓(lou)(lou)(lou)承板(ban)栓(shuan)釘(ding)類型有ф8、ф10、ф13、ф16、ф19、ф22、ф25，栓(shuan)釘(ding)一(yi)般在鋼(gang)(gang)(gang)結構(gou)修(xiu)建中,遍及使用(yong)(yong)在柱腳和樓(lou)(lou)(lou)板(ban)中,一(yi)般剛(gang)度(du)(du)要(yao)求高(gao)的柱腳都選用(yong)(yong)鋼(gang)(gang)(gang)柱內伸至混凝(ning)土中，鋼(gang)(gang)(gang)柱埋入混凝(ning)土的部位四周均布栓(shuan)釘(ding)。樓(lou)(lou)(lou)承板(ban)輕鋼(gang)(gang)(gang)結構(gou)常用(yong)(yong)厚(hou)度(du)(du)為(wei)0.8mm,1.0mm，1.2mm,荷載較大的情況下會用(yong)(yong)到(dao)1.5mm。一(yi)般需要(yao)用(yong)(yong)栓(shuan)釘(ding)與鋼(gang)(gang)(gang)梁(liang)銜(xian)接，板(ban)中配少量鋼(gang)(gang)(gang)筋，上面(mian)澆混凝(ning)土層，總厚(hou)度(du)(du)約在100-200mm之間。

熱鍍鋅卷板(ban)價(jia)(jia)格(ge)行業(ye)(ye)統計數據(ju)(ju)顯(xian)(xian)示(shi)，十一月國(guo)(guo)內粗鋼(gang)日均產量為(wei)兩百零九(jiu)萬噸，環比下(xia)降3.3%，創出(chu)今年以來水平，但(dan)是(shi)當前減產受(shou)到季(ji)節性因素(su)支撐，市場(chang)對(dui)數據(ju)(ju)有效(xiao)(xiao)(xiao)性提出(chu)質疑。鍍鋅卷工業(ye)(ye)品而言(yan)，近(jin)期(qi)陸續公布的重要(yao)數據(ju)(ju)中性偏(pian)多。但(dan)值得注意的是(shi)，同(tong)年十一月熱鍍鋅卷板(ban)價(jia)(jia)格(ge)工業(ye)(ye)增(zeng)加值和投資增(zeng)速放緩，進一步印(yin)證了(le)國(guo)(guo)內總(zong)需求乏(fa)力(li)，工業(ye)(ye)復蘇形勢不(bu)容樂觀。加上未來經濟(ji)結構調整等因素(su)，工業(ye)(ye)品價(jia)(jia)格(ge)反彈高度(du)將有限(xian)。傳統需求淡季(ji)效(xiao)(xiao)(xiao)應(ying)還(huan)在持續不(bu)斷地發酵，冬(dong)儲效(xiao)(xiao)(xiao)果不(bu)佳(jia)。雖然數據(ju)(ju)顯(xian)(xian)示(shi)供(gong)應(ying)壓力(li)開始減輕，但(dan)是(shi)目前處于鋼(gang)鐵(tie)需求淡季(ji)，市場(chang)成(cheng)交萎縮(suo)，下(xia)游采購遲遲未能有效(xiao)(xiao)(xiao)跟(gen)進，市場(chang)信(xin)心不(bu)足，鍍鋅鋼(gang)板(ban)貿易商囤(dun)貨現(xian)象也(ye)不(bu)明顯(xian)(xian)。

鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)是(shi)為防止鋼(gang)板(ban)表面遭受(shou)腐蝕，延(yan)長(chang)其(qi)使(shi)用(yong)壽命(ming)，在鋼(gang)板(ban)表面涂以一層金屬鋅(xin)(xin)(xin)(xin)，這(zhe)(zhe)種(zhong)(zhong)(zhong)涂鋅(xin)(xin)(xin)(xin)的薄(bo)鋼(gang)板(ban)稱為鍍(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)。按生(sheng)產(chan)(chan)及加工方法可分為以下幾類：熱(re)(re)浸(jin)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)。將薄(bo)鋼(gang)板(ban)浸(jin)入熔 微(wei)商貨源解的鋅(xin)(xin)(xin)(xin)槽中，使(shi)其(qi)表面粘附一層鋅(xin)(xin)(xin)(xin)的薄(bo)鋼(gang)板(ban)。目前(qian)主要采用(yong)連(lian)續鍍(du)(du)鋅(xin)(xin)(xin)(xin)工藝(yi)生(sheng)產(chan)(chan)，即把成卷的鋼(gang)板(ban)連(lian)續浸(jin)在熔解有鋅(xin)(xin)(xin)(xin)的鍍(du)(du)槽中制(zhi)成鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)；合(he)金化鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)板(ban)。這(zhe)(zhe)種(zhong)(zhong)(zhong)鋼(gang)板(ban)也(ye)是(shi)用(yong)熱(re)(re)浸(jin)法制(zhi)造，但(dan)在出槽后(hou)，立(li)即把它加熱(re)(re)到５００℃左右，使(shi)其(qi)生(sheng)成鋅(xin)(xin)(xin)(xin)和鐵(tie)的合(he)金被膜。這(zhe)(zhe)種(zhong)(zhong)(zhong)鍍(du)(du)鋅(xin)(xin)(xin)(xin)板(ban)具有良好的涂料的密(mi)著性和焊(han)接性。

鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板按用(yong)(yong)(yong)(yong)(yong)(yong)途又可(ke)分為(wei)一(yi)般用(yong)(yong)(yong)(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)(yong)(yong)(yong)、建筑外側(ce)板用(yong)(yong)(yong)(yong)(yong)(yong)、結構(gou)用(yong)(yong)(yong)(yong)(yong)(yong)、瓦壟板用(yong)(yong)(yong)(yong)(yong)(yong)、拉伸(shen)用(yong)(yong)(yong)(yong)(yong)(yong)和深沖用(yong)(yong)(yong)(yong)(yong)(yong)等(deng)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鋼板。對于一(yi)般防(fang)(fang)保護用(yong)(yong)(yong)(yong)(yong)(yong)鍍(du)(du)(du)層(ceng)，可(ke)以采用(yong)(yong)(yong)(yong)(yong)(yong)堿性鋅(xin)(xin)(xin)(xin)酸鹽鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)彩(cai)色(se)(se)鈍化(hua)(hua)工藝(yi)。有(you)(you)時(shi)為(wei)了(le)(le)產品的(de)(de)配色(se)(se)需要，也可(ke)以采用(yong)(yong)(yong)(yong)(yong)(yong)藍白色(se)(se)鈍化(hua)(hua)工藝(yi)，比(bi)如軍綠色(se)(se)鈍化(hua)(hua)、黑色(se)(se)鈍化(hua)(hua)等(deng)。為(wei)提高鋼管的(de)(de)耐(nai)腐蝕(shi)性能(neng)，對一(yi)般鋼管進行鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)。鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)卷分熱鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)和電鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)兩種，熱鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)厚，電鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)成本低(di)，表(biao)面不是很(hen)光滑(hua)。吹氧焊(han)(han)管：用(yong)(yong)(yong)(yong)(yong)(yong)作煉鋼吹氧用(yong)(yong)(yong)(yong)(yong)(yong)管，一(yi)般用(yong)(yong)(yong)(yong)(yong)(yong)小(xiao)口徑的(de)(de)焊(han)(han)接鋼管，規格由3/8-2寸八種。用(yong)(yong)(yong)(yong)(yong)(yong)08、10、15、20或者195-Q235的(de)(de)鋼帶制作成的(de)(de)，為(wei)了(le)(le)防(fang)(fang)腐蝕(shi)，有(you)(you)得進行滲(shen)鋁(lv)處理。鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)其防(fang)(fang)護作用(yong)(yong)(yong)(yong)(yong)(yong)更強(qiang)(qiang)，抗(kang)腐蝕(shi)能(neng)力強(qiang)(qiang)。整個(ge)結構(gou)由鋅(xin)(xin)(xin)(xin)，形(xing)成致密的(de)(de)四元結晶體，此結晶體在鋼板上形(xing)成一(yi)層(ceng)屏障， 因而有(you)(you)效的(de)(de)防(fang)(fang)止腐蝕(shi)因子穿透。 耐(nai)腐蝕(shi)性來自鋅(xin)(xin)(xin)(xin)的(de)(de)障礙(ai)層(ceng)保護功能(neng)強(qiang)(qiang)。

樓承(cheng)板(ban)鍍(du)鋅(xin)(xin)(xin)(xin)首要起到防(fang)腐的(de)效果(guo)，按(an)標準(zhun)組(zu)(zu)(zu)合樓板(ban)與非組(zu)(zu)(zu)合樓板(ban)壓型鋼板(ban)應選(xuan)用熱鍍(du)鋅(xin)(xin)(xin)(xin)，不(bu)該選(xuan)用電鍍(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)，其(qi)雙面(mian)鍍(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)總含(han)(han)量(liang)(liang)要滿足(zu)在(zai)使(shi)(shi)用期間(jian)不(bu)致(zhi)銹損的(de)要求(qiu)。當(dang)作為(wei)(wei)(wei)非組(zu)(zu)(zu)合樓承(cheng)板(ban)時，鍍(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)含(han)(han)量(liang)(liang)可(ke)選(xuan)用較(jiao)低值(zhi);當(dang)為(wei)(wei)(wei)組(zu)(zu)(zu)合樓承(cheng)板(ban)時，鍍(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)含(han)(han)量(liang)(liang)不(bu)該小于(yu)150g/m2。當(dang)為(wei)(wei)(wei)組(zu)(zu)(zu)合樓板(ban)且(qie)使(shi)(shi)用環境條(tiao)件較(jiao)為(wei)(wei)(wei)惡劣時，鍍(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)含(han)(han)量(liang)(liang)應選(xuan)用上(shang)限值(zhi)或更高值(zhi)。更高的(de)鍍(du)鋅(xin)(xin)(xin)(xin)要求(qiu)，如(ru)雙面(mian)鍍(du)鋅(xin)(xin)(xin)(xin)量(liang)(liang)為(wei)(wei)(wei)300g/m2、350g/m2或鍍(du)鋁(lv)鋅(xin)(xin)(xin)(xin)(5%鋁(lv))275g/m2、300g/m2等，較(jiao)高的(de)鍍(du)層(ceng)(ceng)量(liang)(liang)使(shi)(shi)組(zu)(zu)(zu)合樓板(ban)有更長耐久(jiu)性，同等量(liang)(liang)的(de)鍍(du)鋁(lv)鋅(xin)(xin)(xin)(xin)的(de)防(fang)銹蝕才能大約(yue)兩倍于(yu)一(yi)般熱鍍(du)鋅(xin)(xin)(xin)(xin)。鍍(du)鋅(xin)(xin)(xin)(xin)量(liang)(liang)也不(bu)是(shi)越厚越好，當(dang)鍍(du)鋅(xin)(xin)(xin)(xin)量(liang)(liang)較(jiao)厚時，抗剪連接件栓釘的(de)焊(han)接質量(liang)(liang)就很難保證，焊(han)接時，宜(yi)選(xuan)用局部除鋅(xin)(xin)(xin)(xin)處理措施。