Dab tsi yog qhov txawv ntawm S355JR thiab S235JR cov ntaub ntawv?
Qhov sib txawv tseem ceeb nyob hauv lawv lub zog.S355 JRmuaj lub zog siab dua S235JR, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa, thaum S235JR muaj 235 MPa. Qhov no ua rau S355JR haum rau hnyav- daim ntawv thov lub luag haujlwm, thaum S235JR muaj kev lag luam ntau dua thiab zoo dua rau cov qauv hnyav.
Dab tsi yog cov txheej txheem welding feem ntau rau S355JR welded structural steel kav?
Common welding txheej txheem rauS355JR steel kavsuav nrog submerged arc vuam (SAW), flux-cored hlau arc vuam (FCAW), thiab phau ntawv arc vuam (SMAW). Submerged arc vuam feem ntau yog siv rau vuam ntev seams hauv cov kav dej loj.
Dab tsi yog qhov kev thov ntawm S355JR welded structural steel yeeb nkab?
S355JR welded Cov qauv tsis muaj hlaumuaj ntau yam kev siv hauv kev tsim kho, metallurgy, hnyav thiab thauj engineering, tshuab cuab yeej, hluav taws xob engineering thiab choj tsev lag luam. Ntau yam profiles thiab cov qauv hlau, qhov chaw thiab cov khoom siv hauv av thiab hauv av yog tsim los ntawm steel S355JR.
Dab tsi yog cov khoom tseem ceeb ntawm S355JR welded structural steel yeeb nkab?
Lub ntsiab mechanical zog ntawmS355JR welded qauv steel yeeb nkabmuaj xws li: yam tsawg kawg nkaus yield zog ntawm 355 MPa (phab ntsa thickness tsis tshaj 16 hli), tensile zog ntawm 470 MPa thiab 630 MPa, thiab yam tsawg kawg nkaus elongation ntawm 22%.
S355JR welded structural steel kav yog dab tsi?
Qhov ntev tolerances ntawmS355JR welded structural steel kavtsis yog txhais los ntawm ib tus lej tus nqi, tab sis nyob ntawm cov qauv tshwj xeeb thiab qhov ntev. Piv txwv li, rau hollow profiles xws li S355JRH (qib zoo sib xws), cov qauv qauv qhia cov phab ntsa thickness kam rau ua ntawm ± 10% los yog ua raws li EN 10210-2, nrog rau qhov ntev ntawm ± 1% los yog raws li xav tau los ntawm Steel Union Group. Rau cov ntaub ntawv tiaj tus (steel daim hlau), lub thickness kam rau ua kuj yuav txawv nrog lub nominal thickness.
