PC Steel Strand
01
Epoxy Dahaarka Kombuutarka Birta Strand
Hordhac Product
Waxqabadka mono-filament lagu buufiyay xadhig birta epoxy waxay buuxisaa shuruudaha GB/T25823-2010 "Monofilament Coated Epoxy Coated Prestressed Steel Strand".
Waxqabadka xargaha birta ah ee epoxy-ga buuxiyey waxay buuxisay shuruudaha GB/T21073-2007 "Epoxy Coated Seven Wire Prestressed Steel Strand" iyo JT/T 737-2009 "Filled Epoxy Coated Steel Strand".
Waxqabadka dufanka ka-hortagga daxalka: Iyadoo la raacayo JG 3007, waxay ka samaysan tahay saabuun heer sare ah oo lipid acid-caddayn ah si ay u dhuujiso saliidda macdanta si qoto dheer, ku dar antioxidants, wakiilada ka-hortagga miridhku, ka-hortagga-daxalka iyo waxyaabaha kale ee lagu daro, taas oo hagaajinaysa adhesion, caabbinta biyaha, caabbinta miridhku iyo ka-hortagga dufanka-daxalka.
Waqtigan xaadirka ah, waxaa jira laba heer oo caalami ah oo loogu talagalay xargaha birta dahaarka leh ee epoxy, kuwaas oo kala ah ASTM A 882/A 882M-02a iyo IS0 14655:1999 (E). Xadhkaha birta-dahaarka leh ee epoxy-dahaarka ah, laba nooc oo badeecooyin ah ayaa la cayimay: Xargaha la buuxiyey ee epoxy-dahaarka leh iyo xargo bir ah oo dahaarka leh. Nooca 2002 ee heerka ASTM, waxaa muhiim ah in lagu qeexo xargaha birta ah ee la buuxiyey epoxy-dahaarka leh, iyo xargaha birta-dahaarka ah ee epoxy-ka laguma talinayo; TS ISO 14655: 1999 (E) waxay ku saleysan tahay ASTM A 882/A882M-96 sidaa darteed waxay haysaa qawaaniinta alaabada strand-dahaarka epoxy, ie labada alaab.
Maaddaama xargaha birta ee epoxy-dahaarka leh ay yihiin badeecada iska caabbinta daxalka aad u fiican, waxaa jira xeerar adag oo ku saabsan dhumucda daahan iyo godad dusha sare ee labada heer. ASTM A882/A 882M-02a waxay qeexaysaa dhumucda daahan ee 0.38 -1.14mm IS0 14655:1999 (E) waxay qeexaysaa in dhumucda dahaarka ee xadhig bir ah oo la buuxiyey epoxy ay tahay 0.40-0.90mm; Dhumucda dahaarka ee xargaha epoxy-dahaarka leh waa 0.65 -1.15mm.
ASTM A882/A882M-02a iyo IS0 14655:1999 (E) labaduba waxay qeexayaan in aanay jiri doonin wax godad ah oo dhererkiisu dhan yahay xadhig birta ku dahaadhan epoxy-ka. Isla mar ahaantaana, alaabtayadu waxay buuxinayaan shuruudaha labada heer ee caalamiga ah ee ASTM A882/A882M-02a iyo IS0 14655: 1999 (E) .
Tilmaamaha Alaabta
Xadhkaha birta dahaarka leh ee epoxy ee ay soo saartay shirkadeena waxay leeyihiin sifooyin liddi ku ah daxalka,
1) Farqiga u dhexeeya fiilooyinka birta ee xargaha birta waxaa si buuxda u buuxiya resin epoxy.
2) Daahan The epoxy resin on dusha sare ee xadhig birta leh dhumucdiisuna waxay ku filan, iyo ma pinhole in dhererka oo dhan.
3) Xabagta epoxy-ga gaarka ah waxay si adag ugu xidhan tahay matrixka birta ee xadhigga birta, kaas oo si isku mid ah u fidsan oo aan dillaacin inta lagu jiro iyo ka dib xiisadda.
Codsiyada Alaabta
Sida nooc cusub oo wax qabad heer sare ah oo ka hortagga daxalka prestressed, xargaha birta dahaarka leh ee epoxy ayaa si weyn loogu isticmaalaa qaybo badan oo injineernimo ah sida fiilooyinka fiilada-joogta ah, fiilooyinka fiilada-joogta ah ee qayb ahaan, fiilooyinka dibedda (oo ay ku jiraan fiilooyinka xidhidhka), fiilooyinka gudaha, geotechnical ku xirid, iwm, ee Mareykanka, Yurub, Japan, Australia iyo kuwa kale ee Yurub, Ameerika iyo Asia-Pacific dalalka iyo gobollada.
Shirkaddayada 16 xadhkaha fiilooyinka ku xidhan ee Korla Landscape Bridge waa fiilooyinka barroosinka ee ay samaysay tignoolajiyada extrusion. Badeecada cusub ee 17.8mm epoxy dahaarka birta prestressed ee ay soo saartay shirkadeena ayaa lagu dabaqay mashruuca qaab dhismeedka birta ee daadinta dhuxusha qalalan ee Mashruuca Kululaynta Jasiiradda Dalian Xizhong, kaas oo sidoo kale ah mashruucii ugu horreeyay ee Shiinaha si loo isticmaalo 17.8mm epoxy-dahaarka birta prestressed . ( Qodobka xamaasada leexleexa:
