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我國建(jian)(jian)筑(zhu)(zhu)(zhu)業(ye)中(zhong),噪聲(sheng)污(wu)染問題久(jiu)為人(ren)們所(suo)詬病。輕(qing)型樓承(cheng)(cheng)板的(de)(de)(de)應(ying)用(yong)使(shi)得土(tu)建(jian)(jian)建(jian)(jian)筑(zhu)(zhu)(zhu)物(wu)局面被打破,集環(huan)境(jing)破壞及污(wu)染少(shao)、材料(liao)回收和利(li)用(yong)率高、符合可(ke)持(chi)續發展(zhan)要(yao)求(qiu)等(deng)眾(zhong)多優點(dian)于一身(shen)的(de)(de)(de)樓承(cheng)(cheng)板建(jian)(jian)筑(zhu)(zhu)(zhu)應(ying)運而生,逐步被人(ren)們所(suo)接受。輕(qing)型樓承(cheng)(cheng)板是(shi)近十年來發展(zhan)較快(kuai)的(de)(de)(de)領域,在采用(yong)輕(qing)型樓承(cheng)(cheng)板占非住宅建(jian)(jian)筑(zhu)(zhu)(zhu)投資(zi)的(de)(de)(de)50%以上。這種(zhong)結構工業(ye)化、商品化程(cheng)度高,施工快(kuai),綜合效益高,市(shi)場需求(qiu)量很大,已(yi)引起結構設計人(ren)員認識(shi)。樓承(cheng)(cheng)板的(de)(de)(de)研究開發已(yi)在各(ge)地試點(dian),是(shi)輕(qing)鋼發展(zhan)的(de)(de)(de)一個重要(yao)方向(xiang),目前(qian)已(yi)經有多種(zhong)的(de)(de)(de)低層(ceng)、多層(ceng)和高層(ceng)的(de)(de)(de)設計方案(an)和實例。
堆積(ji)樓(lou)(lou)(lou)(lou)(lou)承板(ban)的(de)(de)地坪應基本平坦,鋼筋桁(heng)架樓(lou)(lou)(lou)(lou)(lou)承板(ban)堆積(ji)不宜過高(gao),每(mei)堆不超(chao)越60張(zhang)。樓(lou)(lou)(lou)(lou)(lou)承板(ban)運至現場,需妥善保護,不得有(you)任何損壞和污染,特(te)別不得感染油(you)污。樓(lou)(lou)(lou)(lou)(lou)承板(ban)應根(gen)據排版圖預(yu)先(xian)切(qie)開、編號(hao)。起吊(diao)(diao)前,每(mei)捆(kun)要有(you)兩(liang)條鋼絲(si)繩,分別捆(kun)于兩(liang)頭(tou)四(si)分之一鋼板(ban)長度處,采用專用吊(diao)(diao)具吊(diao)(diao)起。應先(xian)行試吊(diao)(diao),檢(jian)查重心是(shi)否(fou)穩定(ding),鋼索是(shi)否(fou)會滑動,待(dai)牢靠(kao),無(wu)慮(lv)時(shi)(shi)方(fang)可吊(diao)(diao)起。起吊(diao)(diao)時(shi)(shi),應從下往上(shang)樓(lou)(lou)(lou)(lou)(lou)層次序吊(diao)(diao)料為原則,避(bi)免(mian)因(yin)(yin)先(xian)行吊(diao)(diao)放上(shang)層資料后,阻止下面(mian)樓(lou)(lou)(lou)(lou)(lou)層的(de)(de)吊(diao)(diao)放作業。整疊樓(lou)(lou)(lou)(lou)(lou)承板(ban)放梁(liang)面(mian)時(shi)(shi),應考慮(lv)梁(liang)的(de)(de)承載能力(li),避(bi)免(mian)因(yin)(yin)集中載荷(he)過大,造(zao)成梁(liang)的(de)(de)變形。樓(lou)(lou)(lou)(lou)(lou)承板(ban)吊(diao)(diao)至樓(lou)(lou)(lou)(lou)(lou)層,暫時(shi)(shi)不鋪設時(shi)(shi),應作牢靠(kao)固定(ding),避(bi)免(mian)飛落(luo)和滑落(luo)傷人。
鍍(du)(du)(du)鋅板(ban)(ban)選擇(ze)(ze)要(yao)(yao)(yao)注重(zhong)(zhong)的(de)(de)(de)(de)幾個(ge)要(yao)(yao)(yao)點,工業(ye)(ye)(ye)企業(ye)(ye)(ye)的(de)(de)(de)(de)客戶(hu)選擇(ze)(ze)專用工業(ye)(ye)(ye)原料,要(yao)(yao)(yao)注重(zhong)(zhong)從(cong)四(si)個(ge)標準。一(yi)是(shi)(shi)要(yao)(yao)(yao)注重(zhong)(zhong)品牌來(lai)進(jin)行(xing)選擇(ze)(ze),因(yin)為(wei)鍍(du)(du)(du)鋅技術的(de)(de)(de)(de)要(yao)(yao)(yao)求嚴格(ge),所(suo)(suo)以有的(de)(de)(de)(de)基(ji)(ji)礎,當然(ran)產品質(zhi)量與(yu)(yu)技術標準都(dou)(dou)會更可靠,都(dou)(dou)會有好(hao)的(de)(de)(de)(de)專業(ye)(ye)(ye)標準。二是(shi)(shi)要(yao)(yao)(yao)注重(zhong)(zhong)產品本身(shen)的(de)(de)(de)(de)鍍(du)(du)(du)層質(zhi)量,鍍(du)(du)(du)層一(yi)要(yao)(yao)(yao)靠技術,二要(yao)(yao)(yao)靠純度,所(suo)(suo)以從(cong)產品表面來(lai)看質(zhi)量,這(zhe)是(shi)(shi)基(ji)(ji)本也(ye)是(shi)(shi)重(zhong)(zhong)要(yao)(yao)(yao)的(de)(de)(de)(de)一(yi)個(ge)標準。三是(shi)(shi)要(yao)(yao)(yao)看基(ji)(ji)礎材(cai)(cai)料。鍍(du)(du)(du)鋅板(ban)(ban)基(ji)(ji)礎金屬材(cai)(cai)料的(de)(de)(de)(de)質(zhi)量,與(yu)(yu)成品鍍(du)(du)(du)鋅板(ban)(ban)的(de)(de)(de)(de)質(zhi)量與(yu)(yu)耐用性密切相關,所(suo)(suo)以在進(jin)行(xing)產品選擇(ze)(ze)的(de)(de)(de)(de)時候,需要(yao)(yao)(yao)注重(zhong)(zhong)這(zhe)個(ge)細節,而材(cai)(cai)料的(de)(de)(de)(de)提供,就(jiu)是(shi)(shi)對(dui)于工業(ye)(ye)(ye)生產來(lai)說,有基(ji)(ji)礎條件。四(si)是(shi)(shi)要(yao)(yao)(yao)注重(zhong)(zhong)價格(ge)對(dui)比,不是(shi)(shi)好(hao)的(de)(de)(de)(de)就(jiu)是(shi)(shi)貴的(de)(de)(de)(de),但(dan)是(shi)(shi)如果(guo)廉價的(de)(de)(de)(de)把產品,那是(shi)(shi)不可信的(de)(de)(de)(de)。
冷軋板價格鍍鋅是一種經常采用的經濟而有效的防腐方法。鋅產量的一半左右均用于此種工藝。鍍鋅卷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,這種涂鋅的鋼板稱為鍍鋅卷。巴中冷軋板鍍鋅卷(juan)(juan)主要用于(yu)建筑、家電、汽(qi)車、容(rong)器、交通及家業等(deng)領域。特別是鋼結構建筑、汽(qi)車制造、鋼板(ban)(ban)倉制造等(deng)行業。耐腐蝕(shi)強、表面質量好、得利于(yu)深加(jia)工、經濟實用等(deng)。有關產品標準都列明鍍鋅卷(juan)(juan)推薦的(de)標準厚(hou)度(du)(du)、長(chang)度(du)(du)和寬度(du)(du)及其允(yun)許偏差(cha)。鍍鋅卷(juan)(juan)厚(hou)度(du)(du)偏差(cha)一般在(zai)0.05mm,長(chang)寬偏差(cha)一般在(zai)5mm ,板(ban)(ban)材的(de)厚(hou)度(du)(du)一般在(zai)0.2-3.2之間 。
鍍(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)(ban)按(an)用(yong)(yong)(yong)(yong)(yong)途又可分為一(yi)般(ban)用(yong)(yong)(yong)(yong)(yong)、屋頂用(yong)(yong)(yong)(yong)(yong)、建(jian)(jian)筑(zhu)外側板(ban)(ban)用(yong)(yong)(yong)(yong)(yong)、結(jie)構(gou)用(yong)(yong)(yong)(yong)(yong)、瓦壟板(ban)(ban)用(yong)(yong)(yong)(yong)(yong)、拉伸用(yong)(yong)(yong)(yong)(yong)和(he)深(shen)沖用(yong)(yong)(yong)(yong)(yong)等鍍(du)鋅(xin)(xin)(xin)(xin)鋼板(ban)(ban)。熱鍍(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)主(zhu)要應用(yong)(yong)(yong)(yong)(yong)于建(jian)(jian)筑(zhu)外用(yong)(yong)(yong)(yong)(yong),建(jian)(jian)筑(zhu)內用(yong)(yong)(yong)(yong)(yong),民用(yong)(yong)(yong)(yong)(yong),門窗,家具(ju),機(ji)械(xie),電子及家用(yong)(yong)(yong)(yong)(yong)電器等領(ling)域(yu)。也有(you)(you)機(ji)箱用(yong)(yong)(yong)(yong)(yong)這(zhe)(zhe)個,不過(guo)熱鍍(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)不放輻射(she)的(de)(de)。空(kong)調,冰箱,微(wei)波爐(lu)及其類似家電背面(mian)的(de)(de)那個板(ban)(ban)就是熱鍍(du)鋅(xin)(xin)(xin)(xin)板(ban)(ban)。鍍(du)鋅(xin)(xin)(xin)(xin)層通過(guo)鈍(dun)(dun)化處(chu)理(li),可減少潮溫貯運(yun)條件下產(chan)生(sheng)(sheng)折銹(xiu)蝕(白(bai)銹(xiu)) 。但這(zhe)(zhe)種化學處(chu)理(li)的(de)(de)防腐蝕性能是有(you)(you)限(xian)的(de)(de),而(er)且,妨礙大多數涂料的(de)(de)附(fu)著性。這(zhe)(zhe)種處(chu)理(li)一(yi)般(ban)不用(yong)(yong)(yong)(yong)(yong)在鋅(xin)(xin)(xin)(xin)鐵合金(jin)鍍(du)層,除光整(zheng)表面(mian)外,作(zuo)為常規,生(sheng)(sheng)產(chan)廠(chang)對其他類型的(de)(de)鍍(du)鋅(xin)(xin)(xin)(xin)層均進行鈍(dun)(dun)化處(chu)理(li)。