SSAW Steel Yeeb Nkab Vuam Cov txheej txheem rau cov roj kab
SSAW steel yeeb nkab, tseem hu ua submerged arc welded yeeb nkab, feem ntau yog siv nyob rau hauv cov roj pipeline installation vim nws durability thiab lub zog.Txawm li cas los xij, qhov ua tau zoo ntawm cov kav dej no nyob ntawm qhov zoo ntawm cov txheej txheem vuam siv thaum lub sijhawm teeb tsa.Cov txheej txheem vuam tsis zoo tuaj yeem ua rau cov pob qij txha tsis muaj zog thiab puas, uas ua rau muaj kev nyab xeeb thiab kev ua haujlwm tsis zoo.
Mechanical Property
| qib steel | yam tsawg kawg nkaus yield zog | Tensile zog | Tsawg kawg elongation | Yam tsawg kawg nkaus lub zog | ||||
| Specified thickness | Specified thickness | Specified thickness | ntawm qhov ntsuas kub ntawm | |||||
| 16 | ＞ 16 ≤ 40 | ＜3 | ≥3≤40 | ≤ 40 | -20 ℃ | 0 ℃ | 20 ℃ | |
| S235 JRH | 235 | 225 | 360-510 : kuv | 360-510 : kuv | 24 | - | - | 27 |
| S275J0H | 275 | 265 | 430-580 : kuv | 410-560 : kuv | 20 | - | 27 | - |
| S275J2H | 27 | - | - | |||||
| S355J0H | 365 | 345 | 510-680 : kuv | 470-630 : kuv | 20 | - | 27 | - |
| S355J2H | 27 | - | - | |||||
| S355K2H | 40 | - | - | |||||
Ib qho ntawm qhov tseem ceeb hauv kev ua kom muaj kev ncaj ncees ntawm lub raj xa hluav taws xob siv cov spiral submerged arc welded steel yeeb nkab yog xaiv cov txheej txheem vuam tsim nyog.Qhov no suav nrog kev ua tib zoo xav txog cov txheej txheem vuam, cov ntaub ntawv muab tub lim thiab kev npaj ua ntej vuam.Tsis tas li ntawd, kev ua raws li cov qauv kev lag luam thiab cov kev cai yog qhov tseem ceeb rau kev ua kom ntseeg tau thiab kev nyab xeeb ntawmgas kabstshuab.
Kev npaj ua ntej vuam zoo yog qhov tseem ceeb los xyuas kom muaj kev vam meej vuam ntawm kauv submerged arc welded steel kav hauv cov roj kab kev teeb tsa.Qhov no suav nrog kev tu thiab tshuaj xyuas cov yeeb nkab saum npoo kom tshem tawm cov kab mob los yog qhov tsis xws luag uas yuav cuam tshuam rau qhov zoo ntawm qhov vuam.Tsis tas li ntawd, txhawm rau ua kom muaj zog thiab txhim khu kev qha vuam, cov yeeb nkab yuav tsum raug ntsuas kom raug thiab ua raws.
Thaum lub sij hawm vuam txheej txheem tiag tiag, kev saib xyuas kom meej thiab ua raws li cov txheej txheem raug yog qhov tseem ceeb.Xaiv txoj kev vuam tsim nyog, txawm tias TIG (tungsten inert gas welding), MIG (hlau inert gas welding) lossis SMAW (stick arc welding), yuav tsum tau xaiv raws li cov kev cai tshwj xeeb ntawm cov kav xa hluav taws xob.Tsis tas li ntawd, kev siv cov ntaub ntawv zoo tshaj plaws thiab cov txheej txheem vuam zoo yog qhov tseem ceeb rau kev tsim cov welds txhim khu kev qha thiab ruaj khov uas ua tau raws li qhov yuav tsum tau ua ntawm kev ua haujlwm ntawm cov kav dej.
Tsis tas li ntawd, kev tshuaj xyuas tom qab vuam thiab kev sim yog cov kauj ruam tseem ceeb los xyuas kom meej qhov vuam zoo thiab kev ncaj ncees hauv cov kav dej xa hluav taws xob siv SSAW steel yeeb nkab.Cov kev sim uas tsis yog kev puas tsuaj, xws li kev kuaj hluav taws xob thiab kuaj ultrasonic, tuaj yeem pab txheeb xyuas qhov muaj peev xwm tsis xws luag lossis kev tsis sib xws hauv cov pob qij txha welded kom lawv tuaj yeem kho tam sim ntawd thiab xyuas kom muaj kev ntseeg siab ntawm koj cov kav dej.
Hauv cov ntsiab lus, cov txheej txheem vuam kom raug yog qhov tseem ceeb rau kev txhim kho cov roj kab uas siv cov kav dej hauv qab arc welded steel kav.Kev ncaj ncees thiab kev nyab xeeb ntawm koj cov kav dej roj yog nyob ntawm qhov zoo ntawm koj qhov vuam, yog li cov qauv kev lag luam vuam thiab cov kev coj ua zoo tshaj plaws yuav tsum ua raws.Los ntawm kev ua ntej qhov kev npaj ua ntej vuam zoo, cov txheej txheem vuam zoo, thiab kev soj ntsuam tom qab vuam zoo, cov khoom siv roj av tuaj yeem ua kom muaj kev ntseeg siab thiab kev nyab xeeb ntawm SSAW steel yeeb nkab kev teeb tsa rau kev siv roj pipeline.
