PC Steel Strand
01
Epoxy Coated PC Steel Strand
Khoom Taw Qhia
Kev ua haujlwm ntawm mono-filament sprayed epoxy steel strand ua tau raws li qhov yuav tsum tau ua ntawm GB / T25823-2010 "Mono-filament Coated Epoxy Coated Prestressed Steel Strand".
Kev ua tau zoo ntawm cov epoxy steel strand ua tau raws li qhov yuav tsum tau ua ntawm GB / T21073-2007 "Epoxy Coated Seven Wire Prestressed Steel Strand" thiab JT / T 737-2009 "Filled Epoxy Coated Steel Strand".
Anti-corrosion grease kev ua tau zoo: Raws li JG 3007, nws yog ua los ntawm qib high-qib lipid acid-pov thawj carp xab npum kom thicken tob refined ntxhia roj, ntxiv antioxidants, anti-xeb tus neeg sawv cev, anti-corrosion thiab lwm yam additives, uas pab txoj kev. adhesion, dej tsis kam, xeb kuj thiab anti-corrosion ntawm anti-corrosion roj.
Tam sim no, muaj ob tus qauv thoob ntiaj teb rau epoxy coated steel strands, uas yog ASTM A 882 / A 882M-02a thiab IS0 14655: 1999 (E). Rau epoxy-coated steel strands, ob yam khoom tau teev tseg: epoxy-coated puv strands thiab epoxy-coated coated steel strands. Nyob rau hauv 2002 version ntawm ASTM tus qauv, nws yog ib qho tseem ceeb kom qhia meej epoxy-coated steel strands, thiab epoxy-coated steel strands tsis pom zoo; ISO 14655: 1999 (E) yog raws li ASTM A 882 / A882M-96 thiab yog li khaws cov kev cai rau epoxy-coated strand khoom, piv txwv li rau ob yam khoom.
Txij li thaum epoxy-coated steel strands yog cov khoom uas muaj kev tiv thaiv corrosion zoo heev, muaj cov kev cai nruj ntawm txheej thickness thiab pinholes ntawm qhov chaw nyob rau hauv ob qho tib si qauv. ASTM A 882 / A 882M-02a qhia cov txheej tuab ntawm 0.38-1.14mm rau epoxy-coated puv strands. IS0 14655: 1999 (E) qhia tias txheej tuab ntawm epoxy coated puv steel strand yog 0.40-0.90mm; Cov txheej tuab ntawm epoxy-coated strands yog 0.65-1.15mm.
ASTM A882 / A882M-02a thiab IS0 14655: 1999 (E) ob leeg qhia tias yuav tsum tsis muaj pinholes nyob rau hauv tag nrho ntev ntawm cov tiav epoxy-coated steel strand. Tib lub sijhawm, peb cov khoom ua tau raws li qhov yuav tsum tau ua rau ob qho tib si thoob ntiaj teb cov qauv ntawm ASTM A882 / A882M-02a thiab IS0 14655: 1999 (E).
Khoom nta
Cov epoxy coated steel strands tsim los ntawm peb lub tuam txhab muaj cov khoom zoo tiv thaiv corrosion,
1) Qhov sib txawv ntawm cov hlau xaim hlau ntawm cov hlua hlau yog ua tiav los ntawm epoxy resin.
2) Cov epoxy resin txheej rau saum npoo ntawm cov hlau strand nrog cov tuab txaus, thiab tsis muaj pinhole nyob rau hauv tag nrho ntev.
3) Qhov tshwj xeeb epoxy resin yog ruaj khov nrog cov hlau matrix ntawm cov hlau strand, uas txuas mus rau synchronously thiab tsis tawg thaum lub sij hawm thiab tom qab tensioning.
Cov khoom siv
Raws li hom tshiab ntawm kev ua tau zoo los tiv thaiv corrosion prestressed khoom, epoxy coated steel strand yog dav siv nyob rau hauv ntau engineering teb xws li cable-stayed cables, ib nrab cable-nyob cables, lwm cables (xws li khi cables), internal cables, geotechnical anchorage, thiab lwm yam, hauv Tebchaws Meskas, Tebchaws Europe, Nyiv, Australia thiab lwm lub tebchaws Europe, Asmeskas thiab Asia-Pacific thiab cheeb tsam.
Peb lub tuam txhab 16 cables nyob rau hauv Korla Toj roob hauv pes Choj yog extrusion thauj tog rau nkoj cables ua los ntawm extrusion technology. Cov khoom tshiab 17.8mm epoxy coated prestressed steel strand tsim los ntawm peb lub tuam txhab tau siv rau lub steel qauv project ntawm qhuav thee shed ntawm Dalian Xizhong Island Cua sov Project, uas kuj yog thawj project nyob rau hauv Tuam Tshoj siv 17.8mm epoxy coated prestressed steel strand. . (Deflection tensile yam:
