1. Kev sib piv cov txheej txheem ntau lawm
Cov txheej txheem ntau lawm ntawmncaj seam steel yeeb nkabyog qhov yooj yim. Cov txheej txheem ntau lawm yog high-frequency welded ncaj seamcev steelthiabsubmerged arc welded ncaj seam steel yeeb nkab. Ncaj seam steel yeeb nkab muaj kev ua haujlwm siab, tus nqi qis thiab kev loj hlob sai.
Lub zog ntawmkauv steel yeeb nkabfeem ntau yog siab tshaj qhov ncaj seam steel yeeb nkab. Cov txheej txheem tseem ceeb yog submerged arc vuam. Kauv steel hlab tuaj yeem tsim cov welded hlab nrog sib txawv diameters ntawm billets ntawm tib qhov dav, los yogwelded tubesnrog loj diameters los ntawm nqaim billets.
Txawm li cas los xij, piv nrog cov kav hlau ncaj nraim ntawm tib qhov ntev, qhov vuam ntev tau nce li 30% thiab 100% raws li, thiab cov khoom ceev yog tsawg. Yog li ntawd, txoj kab uas hla loj steel kav feem ntau welded los ntawm kauv vuam, thiab me me txoj kab uas hla steel kav feem ntau welded los ntawm ncaj seam welding.
Thaum tsim tawmloj-inch ncaj seam steel kavHauv kev lag luam, T-zoo li vuam tshuab yog siv, uas yog, ib tug me me ntawm ncaj seam steel kav yog lub taub qab sib txuas thiab kev cob cog rua kom tau raws li qhov yuav tsum tau ntev ntawm qhov project. Qhov tsis xws luag ntawm T-shaped ncaj seam steel yeeb nkab yuav ua tau zoo heev, thiab cov welding residual stress ntawm T-shaped weld yog loj. Lub vuam hlau feem ntau yog nyob rau hauv kev nyuaj siab triaxial, uas ua rau kom muaj kev tawg.
Tsis tas li ntawd, raws li cov kev cai ntawm submerged arc vuam, txhua qhov vuam yuav tsum raug rau arc striking thiab arc extinguishing kev kho mob. Txawm li cas los xij, txhua lub yeeb nkab steel tsis tuaj yeem ua tau raws li qhov xwm txheej no thaum lub sij hawm hla kev sib khi, yog li kev vuam ntau dua tuaj yeem tshwm sim thaum lub sij hawm arc extinguishing.
2. Kev sib piv ntawm kev ua haujlwm tsis zoo
Thaum cov yeeb nkab raug rau sab hauv siab, ob qhov kev ntxhov siab tseem ceeb feem ntau yog tsim los ntawm cov yeeb nkab phab ntsa, uas yog radial stress thiab axial stress. Kev nyuaj siab ntawm cov weld, qhov twg α Nws yog lub weld kauv kaum ntawmkauv steel yeeb nkab.
Kev nyuaj siab ntawm cov kauv weld yog qhov kev ntxhov siab tseem ceeb ntawm cov yeeb nkab ncaj seam steel. Nyob rau hauv tib lub siab ua hauj lwm, cov phab ntsa thickness ntawm kauv steel kav nrog tib lub yeeb nkab txoj kab uas hla yog me dua li ntawm ncaj seam steel kav.
Post lub sij hawm: Jan-03-2023
