蚌埠預(yù)應(yīng)力工作錨規(guī)格湖南邵陽預(yù)應(yīng)力工作錨錢一臺(tái)浙江諸暨預(yù)應(yīng)力錨具三件套全國(guó)咨詢海南省混凝土預(yù)應(yīng)力張拉用錨具建材
* 預(yù)應(yīng)力錨固體系應(yīng)用范圍廣泛,可以錨固強(qiáng)度為1570mpa~1960mp-別的直徑為φ9.5~φ21.6的鋼絞線、1570mpa~1770mp-別的直徑為φ4~φ10的高強(qiáng)鋼絲以及各種直徑和強(qiáng)度級(jí)別的預(yù)應(yīng)力筋錨具;
*選擇范圍廣泛,預(yù)應(yīng)力錨固體系適用于1~55根鋼絞線和其它不同根數(shù)預(yù)應(yīng)力筋。并可以根據(jù)顧客的需求設(shè)計(jì)和生產(chǎn)任意型號(hào)和規(guī)格的錨具;
* 具有-的自錨性能;
* 靜載錨固-,錨固穩(wěn)定、-;
* 操作方便;
* 具有分級(jí)或重復(fù)張拉性能;
* 對(duì)環(huán)境要求不高,有較強(qiáng)的抗干擾性能。
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1、錨具安裝前-行清孔、吹孔,使孔內(nèi)清潔無雜物,夾片不得有油污、鐵屑、泥沙等雜物,并且量一下兩端頭懸出的鋼束長(zhǎng)度是否一樣長(zhǎng),堅(jiān)決避免出現(xiàn)一頭長(zhǎng)一頭短和同束鋼絞線長(zhǎng)短差別過大的情況。
2、安裝前如發(fā)現(xiàn)夾片有裂紋及齒尖損壞等現(xiàn)象,應(yīng)及時(shí)更換以防張拉中滑絲、飛片。
3、工作錨必須準(zhǔn)確放在錨墊板定位槽內(nèi),并與孔道對(duì)中;錨墊板軸線應(yīng)與連接孔道管軸線重合,否則在安裝千斤頂時(shí)容易造成位置偏差和軸線夾角偏差。
4、工作錨和工具錨錨孔中各裝入夾片,用膠圈或鋼絲套好?捎瞄L(zhǎng)約800mm的鐵管穿入鋼絞線向前輕擊將夾片頂齊,不可用力過猛。夾片間隙要均勻,如不均勻需要調(diào)整。每個(gè)孔中必須有規(guī)定的夾片數(shù)量。
5、夾片安裝完后,其外露長(zhǎng)度一般為4~5mm,并均勻一致,若外露太多,要對(duì)所用夾具及錨環(huán)孔尺寸及錐度進(jìn)行檢查,若發(fā)現(xiàn)有不合格者則要進(jìn)行更換。
6、穿入工作錨、工具錨的鋼絞線束要順直,不得使鋼絞線束扭結(jié)、交叉。
7、安裝千斤頂時(shí)不要推拉油管及接頭,油管要順直,不得扭結(jié)成團(tuán)。
8、工具錨的夾片要與工作錨的夾片分開放置,工作錨不能當(dāng)作工具錨,不能重復(fù)使用。
10、錨固體系應(yīng)配套使用,不能與其它體系混用
蚌埠預(yù)應(yīng)力工作錨規(guī)格梅州預(yù)應(yīng)力錨具扁錨配件齊全山東蓬萊預(yù)應(yīng)力張拉錨具壓花機(jī)廠家報(bào)價(jià)廣元預(yù)應(yīng)力張拉錨具智能張拉機(jī)企業(yè)宜昌預(yù)應(yīng)力張拉錨具智能張拉機(jī)總匯青島預(yù)應(yīng)力錨具錨環(huán)加工機(jī)器銅川預(yù)應(yīng)力張拉錨具張拉設(shè)備原理介紹
鐵礦石市場(chǎng)供需弱平衡。近期,鐵礦石價(jià)格維持在60美元/噸左右,一是目前鐵礦石價(jià)格為多數(shù)非主流礦山成本線,價(jià)格再跌可能會(huì)導(dǎo)致非主流礦山停產(chǎn);二是冬季限產(chǎn)導(dǎo)致礦種使用有較-限性;三全國(guó)高爐開工率下降,鋼廠對(duì)鐵礦石的補(bǔ)庫(kù)需求減弱,短期內(nèi)鐵礦石市場(chǎng)或?qū)⒕S持供需弱平衡局面。
綜合來看,后期鐵礦石價(jià)格將繼續(xù)走弱。目前北方港口鐵礦石到岸價(jià)在61美元/噸左右,我們預(yù)計(jì)四季度末有可能跌至55美元/噸以下,但仍遠(yuǎn)高于海外四大礦山30—40美元/噸的生產(chǎn)成本線,一些高成本的非主流礦山生產(chǎn)或受到影響。
北京
上海
天津
重慶
河北
山西
內(nèi)蒙古
遼寧
吉林
黑龍江
江蘇
浙江
安徽
福建
江西
山東
河南
湖北
湖南
廣東
廣西
海南
四川
貴州
云南
西藏
陜西
甘肅
青海
寧夏
新疆
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