S355JR welded ncaj seam yeeb nkab yog dab tsi?
S355JR welded ncaj seam yeeb nkabyog ib hom qauv steel yeeb nkab ua los ntawm S355JR qib steel.S355 JRyog tus qauv European rau siab - lub zog cov qauv hlau nrog qhov tsawg kawg nkaus lub zog ntawm 355 MPa.Ib qho ntawm feem ntau Charpy cuam tshuam kev xeem tsim rauS355 hlauyog S355JR. Lub npe JR qhia tias qhov no tsis yog - alloy structural steel tau dhau chav -kub Charpy V-notch longitudinal impact test. Nws yog European tus qauv rau kub- dov structural steel siv los tsim siab - cov kav dej muaj zog thiab cov tubing nrog qhov tsawg kawg nkaus lub zog ntawm 355 MPa.
Dab tsi engineering tej yaam num yog S355JR welded ncaj seam steel kav tsuas yog siv rau?
S355JR steel kavyog qhov zoo tshaj plaws rau kev siv engineering thiab kev tsim kho nrog cov khoom siv qis dua -cov kev cai, xws li txuas hniav, nkoj, tsheb thauj mus los, tsheb thauj mus los, cranes, tsheb thauj khoom, thiab lwm yam. Cov neeg muag khoom sab saum toj muaj ntau yam kev ua thiab kev sim, thiab ntau qhov ntau thiab tsawg thiab thicknesses muaj.S355JR steel kavtshwj xeeb tshaj yog tsim rau cov ntawv thov uas yuav tsum tau muaj zog tensile xws li 470 txog 630 MPa.
Dab tsi yog cov khoom ntawm S355JR cov khoom?
S355 JRyog ib qho qis- carbon steel feem ntau siv rau hauv cov qauv siv. Nws yog ib feem ntawm "S" series ntawm steels, uas kuj muaj xws li S235, S275, thiab S355. S355JR yog ib lub siab - lub zog cov qauv hlau nrog qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab lub zog tensile xws li 470 MPa rau 630 MPa. Nws cov khoom muaj xws li weldability zoo, zoo heev cuam tshuam toughness ntawm 20℃(27 J), thiab ib tug ceev ntawm 7800 kg / m³.
Dab tsi yog txoj kev siv vuam ntau rau S355JR ncaj seam fais welded steel kav?
Qhov feem ntau welding txoj kev rauS355JR ncaj seam hluav taws xob welded steel kavyog siab -frequency resistance welding (ERW), uas yog tshwj xeeb tshaj yog haum rau siab - zaus hu welding thiab induction vuam. Lwm txoj kev vuam kuj siv tau. Piv txwv li, rau cov kav hlau uas muaj cov phab ntsa tuab lossis cov kab uas loj dua, cov kav dej arc vuam (SAW) tuaj yeem siv tau yog tias yuav tsum muaj qhov siab - vuam zoo.
Yuav ua li cas los soj ntsuam cov vuam zoo ntawm S355JR ncaj seam fais welded steel kav?
Tshawb xyuas qhov vuam zoo ntawmS355JR ncaj seam hluav taws xob welded steel kavyuav tsum muab kev tshuaj xyuas qhov muag, tsis yog -kev sim ua kom puas tsuaj, thiab kev sim ua kom puas tsuaj. Ua ntej, ua ib qho kev soj ntsuam xyuas kom pom qhov tsis xws luag xws li cov kab nrib pleb lossis xeb, thiab xyuas qhov ntev ntawm cov yeeb nkab steel. Tom qab ntawd, siv tsis yog-txoj kev kuaj kev puas tsuaj xws li kuaj ultrasonic, kuaj hluav taws xob, lossis kuaj cov khoom sib nqus kom kuaj xyuas cov teeb meem sab hauv yam tsis muaj kev puas tsuaj rau cov yeeb nkab steel. Thaum kawg, ua qhov kev ntsuam xyuas kev puas tsuaj ntawm cov qauv, xws li kev sim tensile thiab hardness tests, kom paub meej tias cov khoom siv ntawm cov vuam ua tau raws li qhov tshwj xeeb.
