Hauv lub npe S235 ncaj seam welded yeeb nkab, "S235" feem ntau xa mus rau dab tsi?
S235yog cov ntsiab lus ntawm ntau yam khoom ntawm cov khoom no. Piv txwv li, "S" sawv cev rau "cov qauv hlau," tsuas yog muab, nws yog cov qauv hlau lossis hlau. "235" qhia lub zog tawm los ntawm lub thickness ntawm 16 hli, ntsuas hauv megapascals (MPa).
Puas yog S235 qis- carbon steel lossis siab - carbon steel?
S235yog ib qho qis- carbon steel, tshwj xeeb yog cov qauv hlau uas muaj cov ntsiab lus siab tshaj plaws ntawm kwv yees li 0.22%. Cov ntsiab lus qis carbon no muab nws zoo weldability, formability, thiab cuam tshuam tsis kam, ua rau nws tsim nyog rau kev tsim kho thiab kev siv engineering.
Dab tsi yog ib qho ntawm feem ntau siv ntawm S235 welded yeeb nkab?
Ib qho ntawm feem ntau daim ntawv thov ntawmS235 welded yeeb nkabyog nyob rau hauv kev tsim thiab kev txhawb nqa, xws li steel ncej, vaj tse, thiab txuas hniav.
Dab tsi yog cov yam ntxwv tseem ceeb ntawm kev ncaj seam welded steel yeeb nkab piv rau seamless steel yeeb nkab?
Ncaj seam welded steel kavyog tsim los ntawm dabtsi yog khoov steel daim hlau los yog coils rau hauv ib tug tubular zoo thiab welding lub seam. Txoj kev no muaj cov txiaj ntsig zoo xws li kev ua haujlwm siab, tus nqi qis, thiab muaj peev xwm tsim cov kav dej loj - txoj kab uas hla thiab nyias- phab ntsa steel kav. Nyob rau hauv sib piv, seamless steel kav yog tsim los ntawm dov khoom steel billets, yog li muaj zog dua, zoo dua siab - kev ua haujlwm siab, thiab tsis muaj weld seams.
Kev kho cua sov dab tsi tuaj yeem ua tau ntawm S235 ncaj seam welded steel kav kom txo tau qhov kev ntxhov siab sab hauv?
Kev ntxhov siab-relieving annealing, tseem hu ua low-kub annealing, yog feem ntau siv los kho cua sov txoj kev rau relieving kev ntxhov siab nyob rau hauvS235 ncaj seam welded steel kav. Cov yeeb nkab yog rhuab mus rau qhov kub thiab txias (kwv yees li 500-600 degree) thiab tuav rau ib lub sij hawm, ces maj mam txias kom txo tau kev ntxhov siab yam tsis tau hloov nws cov microstructure.
