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地(di) 址:重(zhong)慶九龍坡綠云鋼材市場A9-293/雙(shuang)福攀寶鋼材市場綠城路
昭通攀鋼鍍鋅管樓承板鍍鋅首要起到防腐的效果,按標準組合樓板與非組合樓板壓型鋼板應選用熱鍍鋅,不該選用電鍍鋅鋼板,其雙面鍍鋅層總含量要滿足在使用期間不致銹損的要求。當作為非組合樓承板時,鍍鋅層含量可選用較低值;當為組合樓承板時,鍍鋅層含量不該小于150g/m2。當為組合樓板且使用環境條件較為惡劣時,鍍鋅層含量應選用上限值或更高值。更高的鍍鋅要求,如雙面鍍鋅量為300g/m2、350g/m2或鍍鋁鋅(5%鋁)275g/m2、300g/m2等,較高的鍍層量使組合樓板有更長耐久性,同等量的鍍鋁鋅的防銹蝕才能大約兩倍于一般熱鍍鋅。鍍鋅管廠家鍍鋅(xin)量也(ye)不是越(yue)厚(hou)越(yue)好,當鍍鋅(xin)量較厚(hou)時,抗剪連(lian)接件栓釘的焊接質量就很難保證,焊接時,宜選用局部(bu)除鋅(xin)處理措(cuo)施。
鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)為(wei)基板(ban)(ban)的(de)彩涂(tu)(tu)(tu)(tu)鋼(gang)(gang)板(ban)(ban),除有鋅保護外,鋅層(ceng)(ceng)(ceng)上(shang)(shang)的(de)有機涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)起了覆蓋(gai)隔離作用(yong)(yong),可(ke)防止鋼(gang)(gang)板(ban)(ban)生銹,使用(yong)(yong)壽(shou)命(ming)比鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)更長,據介(jie)紹(shao)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)的(de)使用(yong)(yong)壽(shou)命(ming)比鍍(du)(du)鋅鋼(gang)(gang)板(ban)(ban)長50%。在連(lian)續機組上(shang)(shang)以(yi)冷軋帶(dai)鋼(gang)(gang),鍍(du)(du)鋅帶(dai)鋼(gang)(gang)(電鍍(du)(du)鋅和(he)熱鍍(du)(du)鋅)為(wei)基板(ban)(ban),經(jing)過表面預處理(li)(脫(tuo)脂(zhi)和(he)化學(xue)處理(li)),用(yong)(yong)輥涂(tu)(tu)(tu)(tu)的(de)方法,涂(tu)(tu)(tu)(tu)上(shang)(shang)一層(ceng)(ceng)(ceng)或多層(ceng)(ceng)(ceng)液態涂(tu)(tu)(tu)(tu)料,經(jing)過烘(hong)烤和(he)冷卻所得的(de)板(ban)(ban)材即為(wei)涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)。由于涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)可(ke)以(yi)有各種(zhong)不同的(de)顏色,習慣(guan)上(shang)(shang)把涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)叫(jiao)做(zuo)彩色涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)。又由于涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)是(shi)在鋼(gang)(gang)板(ban)(ban)成型加工之前進(jin)行的(de),在國外這叫(jiao)做(zuo)預涂(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)鋼(gang)(gang)板(ban)(ban)。
樓(lou)承板(ban)的(de)(de)(de)使用是需要(yao)安裝的(de)(de)(de),那(nei)么(me)如果要(yao)安裝就要(yao)選擇(ze)合適的(de)(de)(de)小配件,焊(han)后栓(shuan)(shuan)(shuan)釘高度大(da)(da)于壓型(xing)(xing)鋼板(ban)波高30MM(留意挑(tiao)選樓(lou)板(ban)的(de)(de)(de)類(lei)型(xing)(xing));栓(shuan)(shuan)(shuan)釘頂面(mian)混(hun)凝土保(bao)護層(ceng)(ceng)不小于15MM(留意樓(lou)板(ban)總(zong)厚(hou)度)直徑不宜大(da)(da)于19MM。樓(lou)承板(ban)栓(shuan)(shuan)(shuan)釘類(lei)型(xing)(xing)有ф8、ф10、ф13、ф16、ф19、ф22、ф25,栓(shuan)(shuan)(shuan)釘一般在鋼結構修建(jian)中,遍(bian)及使用在柱(zhu)(zhu)腳和樓(lou)板(ban)中,一般剛度要(yao)求(qiu)高的(de)(de)(de)柱(zhu)(zhu)腳都選用鋼柱(zhu)(zhu)內(nei)伸至混(hun)凝土中,鋼柱(zhu)(zhu)埋入(ru)混(hun)凝土的(de)(de)(de)部位四周均布栓(shuan)(shuan)(shuan)釘。樓(lou)承板(ban)輕鋼結構常用厚(hou)度為0.8mm,1.0mm,1.2mm,荷載(zai)較(jiao)大(da)(da)的(de)(de)(de)情況下會(hui)用到1.5mm。一般需要(yao)用栓(shuan)(shuan)(shuan)釘與鋼梁銜(xian)接,板(ban)中配少量(liang)鋼筋,上面(mian)澆(jiao)混(hun)凝土層(ceng)(ceng),總(zong)厚(hou)度約在100-200mm之間。
鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)是為防止鋼(gang)(gang)(gang)板(ban)(ban)表(biao)面(mian)遭受腐蝕,延長其(qi)使用(yong)壽命,在鋼(gang)(gang)(gang)板(ban)(ban)表(biao)面(mian)涂(tu)(tu)以一層(ceng)金屬鋅(xin)(xin)(xin)(xin)(xin),這種涂(tu)(tu)鋅(xin)(xin)(xin)(xin)(xin)的(de)薄鋼(gang)(gang)(gang)板(ban)(ban)稱為鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)。按生產及加工(gong)方法(fa)可分為以下幾類:熱(re)浸(jin)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)。將薄鋼(gang)(gang)(gang)板(ban)(ban)浸(jin)入熔(rong) 微商(shang)貨(huo)源(yuan)解的(de)鋅(xin)(xin)(xin)(xin)(xin)槽中,使其(qi)表(biao)面(mian)粘附一層(ceng)鋅(xin)(xin)(xin)(xin)(xin)的(de)薄鋼(gang)(gang)(gang)板(ban)(ban)。目前主要采(cai)用(yong)連(lian)續(xu)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)工(gong)藝生產,即把(ba)成卷的(de)鋼(gang)(gang)(gang)板(ban)(ban)連(lian)續(xu)浸(jin)在熔(rong)解有鋅(xin)(xin)(xin)(xin)(xin)的(de)鍍(du)(du)槽中制成鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban);合金化鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)板(ban)(ban)。這種鋼(gang)(gang)(gang)板(ban)(ban)也是用(yong)熱(re)浸(jin)法(fa)制造,但在出槽后(hou),立(li)即把(ba)它(ta)加熱(re)到500℃左右(you),使其(qi)生成鋅(xin)(xin)(xin)(xin)(xin)和(he)鐵的(de)合金被膜。這種鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)板(ban)(ban)具有良好的(de)涂(tu)(tu)料的(de)密著性和(he)焊(han)接性。
熱鍍(du)鋅(xin)卷板(ban)(ban)價格(ge)行業(ye)統(tong)計數(shu)據(ju)顯示,十一月國內(nei)粗鋼(gang)日均產(chan)量(liang)為(wei)兩(liang)百零九(jiu)萬噸(dun),環比(bi)下降3.3%,創出今年以(yi)來水平,但(dan)(dan)是(shi)當前減產(chan)受到季(ji)(ji)節性(xing)(xing)因(yin)素支撐(cheng),市(shi)場(chang)對數(shu)據(ju)有效(xiao)性(xing)(xing)提出質疑(yi)。鍍(du)鋅(xin)卷工(gong)業(ye)品而言(yan),近期陸續(xu)公(gong)布的(de)重要數(shu)據(ju)中性(xing)(xing)偏多。但(dan)(dan)值(zhi)得注意的(de)是(shi),同年十一月熱鍍(du)鋅(xin)卷板(ban)(ban)價格(ge)工(gong)業(ye)增加(jia)值(zhi)和(he)投資增速放緩,進(jin)(jin)一步印(yin)證了(le)國內(nei)總需(xu)求乏(fa)力(li),工(gong)業(ye)復蘇形勢不(bu)容樂觀。加(jia)上未(wei)來經(jing)濟結構調(diao)整等因(yin)素,工(gong)業(ye)品價格(ge)反彈高(gao)度將有限。傳統(tong)需(xu)求淡季(ji)(ji)效(xiao)應(ying)還在持續(xu)不(bu)斷地發(fa)酵,冬儲(chu)效(xiao)果不(bu)佳(jia)。雖(sui)然數(shu)據(ju)顯示供應(ying)壓力(li)開始(shi)減輕(qing),但(dan)(dan)是(shi)目前處于鋼(gang)鐵需(xu)求淡季(ji)(ji),市(shi)場(chang)成交萎縮,下游采(cai)購遲(chi)遲(chi)未(wei)能有效(xiao)跟(gen)進(jin)(jin),市(shi)場(chang)信心(xin)不(bu)足(zu),鍍(du)鋅(xin)鋼(gang)板(ban)(ban)貿易商(shang)囤貨現象也不(bu)明顯。
樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)鋼(gang)(gang)結構柱網(wang)間(jian)距(ju)一般5~9.0m×8~15m,次(ci)梁(liang)間(jian)距(ju)3m,而(er)樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)下(xia)料(liao)(liao)(liao)長度(du)為4.97~8.97m,運(yun)(yun)輸(shu)與安裝(zhuang)均較困(kun)難,尤其是帶(dai)(dai)由圓弧(hu)(hu)區垂(chui)直(zhi)吊(diao)(diao)(diao)裝(zhuang)樓(lou)承(cheng)(cheng)板(ban)(ban)(ban),由上而(er)下(xia)在次(ci)梁(liang)狹間(jian)穿套比較困(kun)難,且打亂了次(ci)梁(liang)焊(han)(han)接(jie)正常(chang)工序。控(kong)制(zhi)下(xia)料(liao)(liao)(liao)長度(du)為3~6m,則可避免垂(chui)直(zhi)運(yun)(yun)輸(shu)時(shi)(shi)在次(ci)梁(liang)間(jian)無(wu)法吊(diao)(diao)(diao)運(yun)(yun)的問(wen)題(ti)。 樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)吊(diao)(diao)(diao)運(yun)(yun)時(shi)(shi)采用(yong)(yong)專用(yong)(yong)軟(ruan)吊(diao)(diao)(diao)索。每(mei)次(ci)吊(diao)(diao)(diao)裝(zhuang)時(shi)(shi)應(ying)檢查軟(ruan)吊(diao)(diao)(diao)索是否(fou)有撕裂、割斷(duan)現象(xiang)。樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)擱置在鋼(gang)(gang)梁(liang)上時(shi)(shi)應(ying)防止探頭。鋪(pu)料(liao)(liao)(liao)時(shi)(shi)操作人(ren)員應(ying)系(xi)帶(dai)(dai),并保證邊(bian)(bian)鋪(pu)設邊(bian)(bian)固定在周(zhou)邊(bian)(bian)繩上。 焊(han)(han)接(jie)采用(yong)(yong)熔透點焊(han)(han)連(lian)接(jie),施焊(han)(han)前應(ying)準備邊(bian)(bian)角料(liao)(liao)(liao)引弧(hu)(hu)試焊(han)(han),調整(zheng)施焊(han)(han)電(dian)流(liu).因樓(lou)承(cheng)(cheng)板(ban)(ban)(ban)底部無(wu)水平模板(ban)(ban)(ban)及(ji)垂(chui)直(zhi)支(zhi)撐,澆(jiao)筑混凝土時(shi)(shi)布料(liao)(liao)(liao)不宜太集中(zhong),采用(yong)(yong)平板(ban)(ban)(ban)振(zhen)搗器及(ji)時(shi)(shi)分攤(tan)振(zhen)搗。