Rau kev tsim kho thiab kev lag luam engineering, cov qauv ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb, kev ntseeg siab thiab zoo. Ib qho qauv uas tau lees paub dav hauv Tebchaws Europe yog EN 10219, uas suav nrog cov seem hollow uas tau tsim los ntawm kev txias. Ntawm ntau qib uas tau teev tseg hauv cov qauv no, S235JRH yog qhov tseem ceeb tshwj xeeb. Hauv cov blog no, peb yuav saib ze dua txog dab tsiEN 10219 S235JRHtxhais tau tias, nws cov ntawv thov, thiab nws qhov tseem ceeb rau cov haujlwm tsim kho niaj hnub no.
EN 10219 yog tus qauv European uas piav qhia txog cov xwm txheej kev xa khoom rau cov khoom siv vuam txias. Cov seem no tuaj yeem yog puag ncig, plaub fab lossis plaub fab thiab ua txias yam tsis muaj kev kho cua sov tom qab. Qhov no txhais tau tias cov khoom siv khaws nws cov khoom qub, ua rau nws haum rau ntau yam kev siv qauv. Tus qauv no ua kom ntseeg tau tias cov seem hollow no ua tau raws li cov kev cai tshwj xeeb txog cov khoom siv kho tshuab, cov tshuaj lom neeg sib xyaw thiab qhov ntev.
S235JRH yog hais txog ib qib hlau tshwj xeeb uas ua raws li tus qauv EN 10219. Tus "S" qhia tias nws yog hlau ua vaj tse thiab tus "235" qhia tias cov khoom siv muaj lub zog tsawg kawg nkaus ntawm 235 megapascals (MPa). Tus "J" qhia tias cov hlau no haum rau kev vuam thiab tus "RH" qhia tias nws yog ib feem khoob. Kev sib xyaw ua ke ntawm cov yam ntxwv no ua rau S235JRH yog qhov kev xaiv zoo tshaj plaws rau ntau yam kev siv ua vaj tse.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv S235JRH hollow seem yog nws qhov sib piv ntawm lub zog rau qhov hnyav. Cov txheej txheem tsim txias tuaj yeem tsim cov qauv sib dua tab sis muaj zog, txo qhov hnyav tag nrho ntawm lub tsev lossis cov haujlwm tsim kho vaj tse. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas qhov hnyav yog qhov tseem ceeb, xws li cov choj, cov pej thuam thiab cov tsev siab.
Tsis tas li ntawd xwb, qhov ua tau ntau yam ntawm S235JRH hollow sections ua rau lawv haum rau ntau yam kev siv. Lawv tuaj yeem siv rau hauv kev tsim cov thav duab, kem thiab beams, nrog rau kev tsim cov rooj tog thiab lwm yam khoom siv. Lub peev xwm kom yooj yim welded ua ke ua rau muaj kev ywj pheej tsim qauv, tso cai rau cov engineers thiab cov kws kes duab vajtse los tsim cov qauv tshiab thiab zoo nkauj.
Lwm qhov tseem ceeb ntawm EN 10219 S235JRH yog nws ua raws li European kev nyab xeeb thiab cov qauv zoo. Los ntawm kev ua raws li tus qauv no, cov chaw tsim khoom tuaj yeem ua kom lawv cov khoom ua tau raws li qhov yuav tsum tau ua rau kev ua haujlwm zoo thiab kev ua tau zoo. Qhov no tsis yog tsuas yog txhim kho kev nyab xeeb ntawm cov qauv kawg, tab sis kuj ua rau cov neeg siv khoom thiab cov neeg koom nrog ntseeg siab rau qhov zoo ntawm cov ntaub ntawv siv.
Hauv kev xaus, EN 10219 S235JRH yog tus qauv tseem ceeb hauv kev tsim kho thiab kev tsim kho vaj tse, muab kev taw qhia rau kev sivtxias tsim welded qauvcov seem khoob. Nws txoj kev sib xyaw ua ke ntawm lub zog, kev hloov pauv tau yooj yim thiab kev ua raws li cov qauv kev nyab xeeb ua rau nws yog qhov kev xaiv zoo heev rau ntau yam kev siv. Raws li kev lag luam kev tsim kho txuas ntxiv mus, qhov tseem ceeb ntawm kev ua raws li cov qauv no tsuas yog nce ntxiv, kom ntseeg tau tias cov qauv tsev ruaj khov thaum tswj kev nyab xeeb thiab zoo. Txawm hais tias koj yog tus kws ua vaj tse, tus kws kes duab vajtse lossis tus neeg cog lus, kev nkag siab thiab siv EN 10219 S235JRH tuaj yeem ua rau koj txoj haujlwm ua tiav ntau dua.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-05-2024