電 話:(曹老師)
電 話:(羅老師)
網 址:i65r1s.cn
地 址:重慶九龍坡綠云鋼(gang)材(cai)市場A9-293/雙(shuang)福攀寶鋼(gang)材(cai)市場綠城路
四川熱鍍鋅重慶樓承板的鍍鋅量沒有一個具體的標準,制作壓型鋼板的冷軋鋼卷須連續熱浸鍍鋅(或鍍鋁鋅),鍍(鋁)鋅量視設計要求而定。熱鍍鋅批發樓承(cheng)板(ban)用壓型鋼(gang)(gang)板(ban)宜選(xuan)擇熱浸鍍(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)。不允(yun)許使用電鍍(du)鋅(xin)(xin)鋼(gang)(gang)板(ban),電鍍(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)僅在基材表面(mian)形成保護(hu)層,防腐(fu)能力有限。目(mu)前市場上有鍍(du)鋅(xin)(xin)鋼(gang)(gang)板(ban)(鍍(du)層含鋁(lv)5%或(huo)55%),在酸性環境(jing)下(xia)的防腐(fu)效(xiao)果(guo)由于熱浸鍍(du)鋅(xin)(xin)鋼(gang)(gang)板(ban),但在混凝(ning)土(tu)的堿性條件下(xia),鍍(du)鋁(lv)鋅(xin)(xin)的防腐(fu)蝕性能低于熱浸鍍(du)鋅(xin)(xin)鋼(gang)(gang)板(ban),且鋁(lv)會和混凝(ning)土(tu)發(fa)生反應,并降低混凝(ning)土(tu)與鋼(gang)(gang)板(ban)的粘結性能。因此參考(kao)國外(wai)規范,及國內(nei)外(wai)工(gong)程,行家壓型鋼(gang)(gang)板(ban)不建議使用鍍(du)鋁(lv)鋅(xin)(xin)鋼(gang)(gang)板(ban)。
熱(re)浸(jin)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板將薄鋼(gang)(gang)板浸(jin)入(ru)熔(rong)(rong)解的鋅(xin)(xin)(xin)(xin)(xin)槽中(zhong),使其(qi)表(biao)面(mian)粘附一(yi)層鋅(xin)(xin)(xin)(xin)(xin)的薄鋼(gang)(gang)板。目前主要采用(yong)連續(xu)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)工藝生產,即(ji)把成(cheng)(cheng)卷的鋼(gang)(gang)板連續(xu)浸(jin)在熔(rong)(rong)解有(you)鋅(xin)(xin)(xin)(xin)(xin)的鍍(du)(du)(du)(du)槽中(zhong)制(zhi)成(cheng)(cheng)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板;合(he)金(jin)化鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板。這種(zhong)鋼(gang)(gang)板也是用(yong)熱(re)浸(jin)法制(zhi)造,但在出槽后,立即(ji)把它加熱(re)到(dao)500 ℃左(zuo)右(you),使其(qi)生成(cheng)(cheng)鋅(xin)(xin)(xin)(xin)(xin)和(he)鐵的合(he)金(jin)被(bei)膜。這種(zhong)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)板具(ju)(ju)有(you)良(liang)好(hao)的涂(tu)料的密著性(xing)(xing)和(he)焊接(jie)性(xing)(xing);電鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板。用(yong)電鍍(du)(du)(du)(du)法制(zhi)造這種(zhong)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板具(ju)(ju)有(you)良(liang)好(hao)的加工性(xing)(xing)。但鍍(du)(du)(du)(du)層較薄,耐腐蝕(shi)性(xing)(xing)不如熱(re)浸(jin)法鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)板;單面(mian)鍍(du)(du)(du)(du)和(he)雙(shuang)面(mian)差鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板。單面(mian)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)板,即(ji)只(zhi)在一(yi)面(mian)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)的產品。在焊接(jie)、涂(tu)裝、防銹處理、加工等(deng)方面(mian),具(ju)(ju)有(you)比(bi)雙(shuang)面(mian)鍍(du)(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)板好(hao)的適(shi)應性(xing)(xing)。
堆積樓承(cheng)板的(de)地(di)坪(ping)應(ying)(ying)基(ji)本平(ping)坦,鋼(gang)(gang)筋桁架(jia)樓承(cheng)板堆積不宜過(guo)高(gao),每堆不超越60張。樓承(cheng)板運至(zhi)(zhi)現場,需妥善(shan)保護(hu),不得(de)有任何(he)損壞和(he)污染(ran),特別不得(de)感(gan)染(ran)油污。樓承(cheng)板應(ying)(ying)根據排版圖(tu)預先切開、編(bian)號(hao)。起吊(diao)(diao)(diao)(diao)前(qian),每捆(kun)要(yao)有兩(liang)條(tiao)鋼(gang)(gang)絲繩,分別捆(kun)于兩(liang)頭四分之一鋼(gang)(gang)板長(chang)度處,采用專用吊(diao)(diao)(diao)(diao)具吊(diao)(diao)(diao)(diao)起。應(ying)(ying)先行試(shi)吊(diao)(diao)(diao)(diao),檢查重心是否(fou)穩定,鋼(gang)(gang)索是否(fou)會滑動,待(dai)牢(lao)靠,無(wu)慮時(shi)方可吊(diao)(diao)(diao)(diao)起。起吊(diao)(diao)(diao)(diao)時(shi),應(ying)(ying)從(cong)下往上(shang)樓層(ceng)(ceng)次(ci)序吊(diao)(diao)(diao)(diao)料為原則,避免因先行吊(diao)(diao)(diao)(diao)放(fang)上(shang)層(ceng)(ceng)資(zi)料后,阻止下面(mian)樓層(ceng)(ceng)的(de)吊(diao)(diao)(diao)(diao)放(fang)作業。整(zheng)疊(die)樓承(cheng)板放(fang)梁面(mian)時(shi),應(ying)(ying)考慮梁的(de)承(cheng)載能力,避免因集(ji)中(zhong)載荷過(guo)大,造(zao)成梁的(de)變形(xing)。樓承(cheng)板吊(diao)(diao)(diao)(diao)至(zhi)(zhi)樓層(ceng)(ceng),暫時(shi)不鋪設時(shi),應(ying)(ying)作牢(lao)靠固定,避免飛落(luo)和(he)滑落(luo)傷人。
樓(lou)(lou)(lou)承板(ban)(ban)鋼(gang)結構(gou)柱(zhu)網間(jian)(jian)距(ju)一般(ban)5~9.0m×8~15m,次(ci)梁間(jian)(jian)距(ju)3m,而樓(lou)(lou)(lou)承板(ban)(ban)下料長度(du)為4.97~8.97m,運(yun)輸與安裝均較困(kun)難,尤(you)其是(shi)帶由(you)圓弧區垂(chui)直(zhi)吊裝樓(lou)(lou)(lou)承板(ban)(ban),由(you)上而下在次(ci)梁狹間(jian)(jian)穿套比較困(kun)難,且(qie)打亂了(le)次(ci)梁焊接正常工序(xu)。控制下料長度(du)為3~6m,則可避免垂(chui)直(zhi)運(yun)輸時在次(ci)梁間(jian)(jian)無法吊運(yun)的(de)問題(ti)。 樓(lou)(lou)(lou)承板(ban)(ban)吊運(yun)時采用專(zhuan)用軟(ruan)吊索。每次(ci)吊裝時應(ying)(ying)檢查軟(ruan)吊索是(shi)否(fou)有撕裂、割斷現(xian)象。樓(lou)(lou)(lou)承板(ban)(ban)擱置(zhi)在鋼(gang)梁上時應(ying)(ying)防止探頭。鋪料時操作人員應(ying)(ying)系帶,并(bing)保證邊(bian)鋪設邊(bian)固定在周邊(bian)繩上。 焊接采用熔透點焊連接,施焊前(qian)應(ying)(ying)準備(bei)邊(bian)角料引(yin)弧試焊,調(diao)整施焊電流.因樓(lou)(lou)(lou)承板(ban)(ban)底部(bu)無水平模板(ban)(ban)及(ji)垂(chui)直(zhi)支撐,澆筑(zhu)混凝(ning)土時布料不宜太集中,采用平板(ban)(ban)振搗(dao)器及(ji)時分攤振搗(dao)。