Qhov kev qhia tshwj xeeb no suav nrog cov phab ntsa cylindrical steel yeeb nkab piles nyob rau hauv uas lub tog raj kheej steel ua haujlwm ua tus tswv cuab ruaj khov lossis cov casing los tsim cov pob zeb hauv qhov chaw. Txhua pawg welded yuav tsum yog seamless, tsis kam welded, flash welded los yog fusion welded nrog longitudinal, kauv taub qab los yog kauv ceg pob qij txha.
ASTM A252 Welded Steel Yeeb Nkab Piles Specification
| Txuj | A252 |
| Specification | Welded thiab Seamless Steel Pipes |
| Muaj Qib | Qib 1, Qib 2 & Qib 3. |
| Hom | Hluav taws xob Resistance Welded (ERW) |
| Loj | NPS 1 TO NPS 24 [DN25 txog DN 600], nrog nominal nruab nrab phab ntsa tuab raws li muab hauv ASME B 36.10M lossis raws li tus neeg siv khoom xav tau. |
| Sab nraud | 1-24 ntiv tes(33.4¡ª609.6 milimeter) |
| Thickness | 3-12 millimeter mus |
| Ntev | Min 3 Meters, Max18 Meters, los yog raws li tus neeg yuav tsum tau muaj. |
| Xaus | Qhov me me yog qhov yooj yim, Qhov loj me yog beveled, los yog raws li cov neeg siv khoom xav tau |
| Kev kho saum npoo | Feem ntau liab qab los yog dub ploj mus |
| Ntim | Qhov loj me me hauv qab 219.1mm hauv pob khoom, Qhov loj me hauv ntau |
| Kev sim | Tshuaj muaj pes tsawg leeg, ntsuas kub, ntsuas khoom, Tensile Requirements thiab lwm yam raws li tus neeg yuav tsum tau muaj. |
SA252 Piling Piping Lub cev xav tau
| Qib | Tawm tswv yim (min) | Tensile (min) | Elongation (min) |
| Qib 1 | 30, 000 psi | 50, 000 psi | Txiav txim los ntawm phab ntsa |
| Qib 2 | 35, 000 psi | 60, 000 psi | Txiav txim los ntawm phab ntsa |
| Qib 3 | 45, 000 psi | 66, 000 psi | Txiav txim los ntawm phab ntsa |
- Kev sim
Thermal Analysis: Txwv P, daim ntawv qhia thermal tsom xam yuav tsum tau teev nyob rau hauv MTC rau cov neeg siv khoom.
Kev Ntsuam Xyuas Cov Khoom Muag: Tshwj xeeb, 2 cov qauv rau 200 daim hauv qab 14 ntiv tes, 2 cov qauv rau 100 daim los ntawm 14 mus rau 36 ntiv tes, thiab 2 cov qauv ntawm 3000 taw siab tshaj 36 ntiv tes.
Tensile xav tau: Raws li A252 tus nqi. Yog hais tias qhov taw tes tawm los tsis meej, sim ntsuas lub zog ntawm cov khoom sib txuas mus rau qhov ruaj khov deflection ntawm 0.2% ntawm cov qauv ntev, lossis sim tag nrho cov elongation nyob rau hauv load ntawm 0.5% ntawm cov qauv ntev .
- Dimensional thiab hnyav tolerances
Tso cai kam rau ua: +/-1% ntawm sab nraud txoj kab uas hla, +/-12% ntawm phab ntsa thickness. Qhov hnyav yuav tsum yog +15% lossis -5% ntawm qhov hnyav theoretical.
Ntev: Raws li tau teev tseg SRL, DRL lossis qhov ntev ntawm 20' lossis 40' thiab qhov ntev ntev.
- Hydrostatictest
Kev ntsuam xyuas hydrostatic tsis tau teev nyob rau hauv ASTM A252 yeeb nkab specification vim hais tias piling kav feem ntau muaj cov cement thiab pob zeb thiab tsim thiab tsis siv rau cov kua conveyance, yog li tsis tas yuav tsum kuaj hydrostatic.
GNEE Supply ASTM A 252 Welded Steel Yeeb Nkab
