Plain Round & PCCP Hlau
Plain round hlau yog peb cov khoom ib txwm muaj nrog cov keeb kwm ntev tshaj plaws hauv Silvery Dragon.Cov khoom no yog tsim rau pre-stressed qhob railway sleeper, qhob phaj thiab qhob yeeb nkab, thiab lwm yam. Nws txoj kab uas hla ntawm φ4.0mm mus rau φ12.0mm thiab tensile zog ntawm 1470 mus rau 1960MPa.Qhov loj kam rau ua ntawm cov khoom no yog qhov tseeb;qhov saum npoo zoo yog qhov zoo heev, cov cuab yeej cuab yeej cuab tam yog sib xws;lub toughness yog zoo;lub zog khawm yog siab.Nws yog kev ntxhov siab rov qab los thiab so tsis txaus, lub sijhawm no nws cov ntaub ntawv qaug zog thiab cov ntaub ntawv hydrogen embrittlement siab dua li cov qauv kev cai thoob ntiaj teb.Ib tug loj npaum li cas yog exported rau txawv teb chaws kev lag luam nyob rau hauv lub xyoo dhau los.
Silvery Dragon yog thawj R & D kev lag luam ntawm Pre-stressed steel hlau rau PCCP nyob rau hauv Suav teb, lub teb chaws txheej txheem chaw lag luam thiab cov khoom lag luam zoo heev nrog lub peev xwm, thev naus laus zis, zoo thiab kev ua tau zoo.Peb cov khoom tau ib txwm nyob hauv txoj haujlwm ua haujlwm hauv kev lag luam los ntawm kev tsim cov khoom siv raw, tsis siv neeg ntau lawm kab txoj kev loj hlob, anti-hydrogen embrittlement rhiab heev kuaj.Lub caij no, Silvery Dragon kuj tau tsim GB / T5223 thiab Suav PCCP cov qauv.Txij li thaum xyoo 2001, Silvery Dragon cov khoom tau siv ntau tshaj 80 qhov dej ntws tseem ceeb nrog txoj kab uas hla ntawm 2.0-4.0m PCCP, xws li txoj haujlwm hloov dej ntawm Irtysh dej mus rau Urumqi, South-North water diversion Beijing seem, Henan seem & Hebei seem, Mopanshan dej thauj mus los Project hauv Harbin, Shenyang Dahuofang Project, thib ob theem ntawm Shanxi yellow River Project thiab North-West Liaoning Water Division Project.Tag nrho cov khoom ntau tshaj 1,200,000 tons.Thiab tseem, peb tau xa tawm mus rau txawv teb chaws lag luam, xws li tim lyiv teb chaws, Canada thiab lwm yam tshwj tsis yog lub teb chaws tus qauv GB / T5223, peb kuj tuaj yeem ntsib nrog ASTMA648, NFEN642 thiab lwm cov qauv thoob ntiaj teb thiab cov neeg siv khoom tshwj xeeb.
Cov ntsiab lus tseem ceeb & cov qauv siv
| Qhov tshwm sim | Nominal Dia.(hli) | Tensile zog (MPa) | Kev so (1000h) | Cov qauv |
| Plain Round Hlau | 4.0, 5.0, 6.0, 7.0, 7.5, 8.0, 9.0, 10.0, 11.0, 12.0 | 1470,1570,1670,1770,1860,1960 | Kev so qis qis ≤ 2.5% | GB / T5223, ASTMA421, BS5896 |
| PCCP Hlau | 4.88, 6.35, 7.92 ib | 1520, 1650, 1740 | Kev so li qub ≤7.5% | ASTMA648, NFEN642 |
