SSAW steel yeeb nkab vuam cov txheej txheem rau cov kab roj
SSAW steel yeeb nkab, tseem hu ua armerged arc Welded yeeb nkab, yog feem ntau siv nyob rau hauv roj pipeline nruab vim nws lub durability thiab lub zog. Txawm li cas los xij, qhov ua tau zoo ntawm cov kav dej yog ntau ntawm cov kev ua kom zoo ntawm kev teeb tsa thaum lub sij hawm teeb tsa. Cov txheej txheem sib tsoo uas tuaj yeem ua rau muaj kev sib koom ua ke thiab muaj kev phom sij, ua rau muaj kev phom sij kev nyab xeeb thiab kev ua tsis tau.
Cov Cuab Yeej Cuab Yeej Cuab Yeej
| qib hlau | Yam tsawg kawg nkaus xwb Zog | Lub zog tensile | Yam tsawg kawg nkaus elongation | Yam tsawg kawg nkaus cuam tshuam lub zog | ||||
| Teev cov tuab | Teev cov tuab | Teev cov tuab | Ntawm sim ntsuas qhov kub ntawm | |||||
| <16 | > 1605 | <3 | ≥40 | I≤40 | -20 ℃ | 0 ℃ | 20 ℃ | |
| S235jrh | 235 | 22 | 360-510 | 360-510 | 24 | - | - | 27 |
| S275j0h | 275 | 26 | 430-580 | 410-560 | 20 | - | 27 | - |
| S275j2h | 27 | - | - | |||||
| S355j0h | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
| S355j2h | 27 | - | - | |||||
| S355k2h | 40 | - | - | |||||
Ib qho ntawm cov ntsiab lus tseem ceeb hauv kev ua kom muaj kev ncaj ncees ntawm cov roj kom muab kauv kom muab cov yeeb nkab muab kauv rau cov yeeb nkab zoo nkauj Qhov no suav nrog kev saib xyuas kev sib tw vuam txoj kev vuam, cov tub lim cov ntaub ntawv thiab npaj ua ntej weld. Ib qho ntxiv, ua raws li cov qauv kev lag luam thiab cov cai yog qhov tseem ceeb rau kev ntseeg tau kev ntseeg tau thiab kev nyab xeeb ntawmRoj Kabs.
Npaj ua ntej welding yog qhov tseem ceeb los ua kom tiav kev vam meej vuam ntawm kauv submerged arc welded steel kav hauv roj ib puag ncig. Qhov no suav nrog kev ntxuav tu thiab tshuaj xyuas ntawm cov yeeb nkab saum npoo av kom tshem tawm cov kev paug lossis qhov tsis xws luag uas yuav cuam tshuam rau qhov zoo ntawm WELD. Ib qho ntxiv, kom ua tiav lub zog thiab txhim khu kev qha weld, cov yeeb nkab yuav tsum tau ntsuas yog thiab ua raws cai.
Thaum lub sij hawm qhov tseeb vuam txheej txheem, saib xyuas kom meej thiab muaj raws li kev kho kom raug yog qhov tseem ceeb. Xaiv cov qauv vuam tsim nyog, txawm tias tsov (tungsten inert roj vuam), yuav tsum raug xaiv raws li cov kev cai tshwj xeeb ntawm cov kev xav tau ntawm cov pa roj hluav taws xob. Ib qho ntxiv, kev siv cov khoom siv cov khoom siv zoo thiab ua kom pom cov txheej txheem kev txhim khu kev ua tau zoo thiab ruaj khov uas ua tau raws li cov kev cai roj pipeline.
Ib qho ntxiv, kev tshuaj xyuas tom qab thiab kev kuaj welds yog cov kauj ruam tseem ceeb kom ntseeg tau tias weld zoo thiab muaj kev ntseeg siab hauv roj av siv cov kab hlau siv cov yeeb nkab. Tsis yog-kev sim ua kev sim tshuaj, xws li kev xeem ntawv nyeem thiab kev kuaj ultrasonic, tuaj yeem kho tau qee yam tsis xws luag thiab ua kom muaj kev ntseeg tau ntawm koj cov roj av roj.
Hauv cov ntsiab lus, kho cov txheej txheem vuam yog qhov tseem ceeb rau kev txhim kho cov kab roj uas siv kauv submerged arc welded steel kav Welded Steel kav. Kev ncaj ncees thiab kev nyab xeeb ntawm koj cov roj av roj av nyob ntawm qhov zoo ntawm koj vuam, yog li woulding cov qauv kev lag luam thiab kev coj ua tau zoo tshaj plaws. Los ntawm kev npaj ua ntej rau kev npaj ua ntej weld, thiab kev soj ntsuam cov pa hluav taws xob welds, thiab kev nyab xeeb ntawm cov yeeb nkab steel yeeb nkab kev sib txuas rau cov ntawv thov roj pipeline.
