Nyob rau hauv qhov kev ntsuam xyuas zoo ntawm welded steel kav, weld seam yeej ib txwm yog qhov tseem ceeb thiab feem ntau txhawj xeeb. Txawm hais tias nws yog Longitudinal Submerged Arc Welded (LSAW) steel kav lossis Kauv Submerged Arc Welded (SSAW) steel kav, lawv qhov kev ua tau zoo tag nrho, siab-cov kabmob muaj peev xwm, thiab kev pabcuam kev ntseeg tau zoo muaj feem xyuam nrog cov qauv weld seam. Tsab ntawv xov xwm no yuav ua qhov kev sib piv ntawm qhov tob ntawm LSAW steel kav thiab SSAW steel kav los ntawm qhov kev xav ntawm vuam seam zoo, quab yuam- hom kabmob, vuam thiab tshuaj xyuas nyuaj, pab cov neeg nyeem nkag siab txog qhov sib txawv tseem ceeb ntawm ob hauv kev siv engineering.
I. Qhov Tseem CeebQhov sib txawv hauv WeldSeamCov duab
LSAW steel kavyog tsim los ntawm steel phaj, nrog weld seams faib raws cov yeeb nkab axis nyob rau hauv ib txoj kab ncaj nraim. Nyob ntawm cov txheej txheem tsim, lawv tuaj yeem ua ib qho los yog ob chav longitudinal weld qauv, tab sis tag nrho ntev ntawm weld seam yog luv thiab txoj hauj lwm yog tsau.
SSAW steel kav, ntawm qhov tod tes, yog tsim los ntawm kauv dov ntawm steel strips, nrog weld seams faib tsis tu ncua nyob rau hauv ib tug kauv zoo thiab tusyees nyob ib ncig ntawm lub cev yeeb nkab. Raws li txoj kab uas hla ntawm cov yeeb nkab nce, qhov vuam seam ntev kuj nce ntau.
Qhov sib txawv ntawm weld seam zoo yog lub hauv paus rau qhov sib txawv ntawm kev ua tau zoo thiab kev siv engineering ntawm ob hom steel kav.
II. Qhov cuam tshuam ntawm Weld Length ntawm Kev Tswj Xyuas Zoo
Nyob rau hauv tib lub yeeb nkab txoj kab uas hla thiab ntev tej yam kev mob:
- LSAW steel kav muaj luv luv weld seams.
- SSAW steel kav muaj ntev weld seams.
Lub weld seam ntev txhais tau hais tias lub sijhawm vuam txheej txheem ntev dua, cov kev xav tau siab dua rau kev ruaj ntseg vuam thiab cov txheej txheem sib xws, thiab qhov muaj feem ntau ntawm cov vuam tsis xws luag.
Yog li ntawd, nyob rau hauv qib siab -qib cov kav dej kav dej, cov tog neeg engineering feem ntau nyiam cov qauv siv vuam ntev nrog cov kav ntev uas tswj tau qhov ntev thiab kev tshuaj xyuas ntau dua.
III. Qhov sib txawv hauv WeldSeam Stress Distribution
Thaum lub raj xa dej raug rau hauv lub siab, lub xeev kev nyuaj siab uas los ntawm lub vuam seam yog qhov tseem ceeb tshwj xeeb.
Lub weld seams ntawm LSAW steel kav yog sib npaug rau cov yeeb nkab axis, feem ntau muaj kev ntxhov siab nyob ib puag ncig, nrog rau ib qho kev quab yuam ib leeg, ua rau kev ntsuam xyuas kev ntxhov siab thiab kev tsim qauv ntau dua.
Lub weld seams ntawm SSAW steel kav yog nyob rau ntawm lub kaum ntse ntse. Nyob rau hauv lub siab sab hauv, cov weld seams dais qhov ua ke ntawm kev ntxhov siab thiab kev ntxhov siab axial. Lub zog no- lub xeev cov kabmob tsis tas yuav tsis muaj kev nyab xeeb, tab sis nws tso cov kev xav tau siab dua ntawm cov yas, tawv ntawm cov hlau vuam thiab kev ruaj ntseg ntawm vuam zoo.
Nyob rau hauv siab -siab los yog kev ua haujlwm nyuaj, qhov sib txawv ntawm qhov vuam quab yuam- hom kabmob ncaj qha cuam tshuam rau kev txiav txim siab engineering.
IV. Kev sib piv ntawm vuam txheej txheem tswj kev nyuaj
LSAW steel kav feem ntau txais cov txheej txheem submerged arc vuam txheej txheem ntawm cov vuam sab hauv ntxiv rau cov vuam sab nraud, nrog rau txoj kev vuam meej, qhov vuam tsis ruaj khov, thiab yooj yim tswj kev vuam tsim.
SSAW steel kav ua tiav vuam thaum lub sij hawm txuas txuas txuas ntxiv, thiab cov txheej txheem vuam yog synchronized nrog kev sib sau, uas tso cov kev xav tau ntau dua ntawm cov khoom siv ruaj khov, vuam system teb ceev, thiab kev sib koom ua ke.
Los ntawm kev tsim khoom, tsis muaj qhov zoo lossis qhov tsis zoo ntawm ob qho tib si, tab sis nyob rau hauv siab -txoj haujlwm cov txheej txheem, feem ntau txoj kev siv vuam tswj tau zoo dua.
V. Qhov txawv ntawm Kev Tswj ntawm Weld Non-Kev Ntsuas Kev Ntsuas
Kev tshuaj xyuas Weld yog ib kauj ruam tseem ceeb los xyuas kom meej qhov zoo ntawm cov kav hlau.
Lub vuam txoj hauj lwm ntawm LSAW steel kav yog tsau thiab qhov ntev yog concentrated, uas yog yooj yim rau:
- Kev kuaj Ultrasonic
- X-Ray Testing
- Automated Tag Nrho Weld Seam Scanning
Nws muaj kev soj ntsuam xyuas siab, qhov chaw tsis txaus ntseeg, thiab yooj yim rau taug qab thiab kho.
Weld seams ntawm SSAW steel kav yog faib nyob rau hauv ib tug kauv cov duab, nrog ib tug ntev kev soj ntsuam txoj kev, siab dua yuav tsum tau rau lub continuation thiab stability ntawm cov khoom soj ntsuam, thiab kuj nce kev soj ntsuam xyuas nyuaj.
Nyob rau hauv tej yaam num hais txog "tag nrho weld traceability", lub longitudinal weld qauv muaj lub ntuj kom zoo dua.
VI. Qhov cuam tshuam ntawm Weld Seams ntawm Kev Pabcuam Lub Neej
Thaum lub sijhawm ua haujlwm ntev -, weld seams yog qhov feem ntau yuav cuam tshuam los ntawm cov hauv qab no:
- Sab hauv siab cyclic loading
- Kub hloov pauv
- Corrosive media yaig
- Sab nraud ib puag ncig kev nyuaj siab
Qhov nyuaj dua thiab ntev dua qhov vuam seam, qhov ntau nws qhov ntev - lub sij hawm kev pabcuam ruaj khov nyob ntawm qhov kev tswj xyuas zoo thaum lub sijhawm tsim khoom. Yog li ntawd, nyob rau hauv tej yaam num uas tsis tshua muaj kev ruaj ntseg yuav tsum tau xws li cov roj thiab roj trunk kab thiab submarine pipelines, cov yeeb nkab steel daim ntawv nrog ib tug yooj yim thiab ntau tswj weld qauv feem ntau yog qhov tseem ceeb.
VII. Engineering Xaiv Logic los ntawm Kev Pom Zoo ntawm Weld Seams
Comprehensively txiav txim siab weld yam:
- Rau siab -siab thiab siab-kev nyab xeeb- theem tej yaam num, LSAW steel kav yog nyiam dua.
- Rau nruab nrab thiab qis - siab, lub hauv paus thiab cov qauv tsim, SSAW steel kav muaj kev paub txog kev thov.
Kev xaiv engineering tsis cuam tshuam rau qee yam khoom, tab sis yog qhov sib piv ntawm qhov sib txawv raws li cov qauv vuam thiab cov kev xav tau ntawm kev ua haujlwm.
Xaus
Weld seam yog "lifeline" ntawm welded steel kav. Qhov sib txawv ntawm LSAW steel kav thiab SSAW steel kav nyob rau hauv weld seam zoo, ntev, kev nyuaj siab tis, thiab soj ntsuam controllability txiav txim lawv qhov chaw nyob rau hauv txawv engineering scenarios. Kev nkag siab tob txog cov txheej txheem thev naus laus zis tom qab weld seams yog qhov tseem ceeb rau kev paub thiab kev xaiv cov khoom tsim nyog.
Raws li cov chaw tsim khoom tshwj xeeb hauv ERW steel yeeb nkab raug tsim rau ntau tshaj 20 xyoo, Huayang Steel Yeeb Nkab ib txwm ua raws li cov khoom siv ruaj khov, cov txheej txheem vuam zoo, thiab cov txheej txheem tshuaj xyuas nruj kom ntseeg tau tias txhua qhov vuam seam muaj kev tswj tau zoo thiab txhim khu kev qha, muab cov khoom lag luam muaj kev ntseeg siab rau ntau yam haujlwm engineering.
