Txhawm rau muab cov kev cuam tshuam tag nrho yog qhov cuam tshuam tawv ntawm European txheemS355K2Wyog zoo dua li ntawm Asmeskas tus qauvA588, peb yuav tsum tshawb xyuas los ntawm peb qhov tseem ceeb:Txheem - def defا cuam tshuam cov kev ntsuas kev ntsuas, Qeb -} TSHWJ XEEB TXOG KEV UA HAUJ LWM YAM YUAV TSUM TAU, thiabCov ntaub ntawv thov hloov tauCov. Qhov xaus yog tias S355K2W muaj cov kev cuam tshuam zoo tag nrho, tshwj xeeb tshaj yog nyob rau hauv nruab nrab- qhov chaw kub thiab txias (piv txwv li -20 degree) feem ntau tau ntsib hauv engineering.
Kev cuam tshuam cov khoom tawv muaj kev cuam tshuam cov ntaub ntawv muaj peev xwm tiv thaiv bacture nyob rau hauv tam sim ntawd kev cuam tshuam, thiab nws cov kev ntsuas kev ntsuas tam sim ntawd hauv ob qho qauv yog qhovCharpy V -} negch cuam tshuam lub zog (AKV, UNIT: J)Cov. Txawm li cas los xij, ob qho qauv sib txawv hauv qhov "kub uas" thiab "qauv tshwj xeeb" rau kev yuav tsum tau kuaj qhov kev sib piv ntawm cov txiaj ntsig tau:
European Txuj Ci (EN 10025-5 rau S355K2W):
It strictly specifies that the impact test must use a standard V-notch sample (cross-section: 10mm×10mm, notch depth: 2mm). Qhov ntsuas kub thiab qhov ntsuas kub thiab tsawg kawg yog qhia meej rau cov steel "Qib" (tsab ntawv tom qab ntawd yog "K2" hauv S355K2W).American txheem (ASTM A588 / A588m rau A588):
Nws tseem siv charpy v - cov qauv notis, tab sis pub rau "}}<6mm). The impact requirements are tied to the steel's "grade" (e.g., GrA, GrB, GrC) and are more flexible in test temperature settings (from -40°C to room temperature).
S355K2W thiab A588 yog cov hlau huab tais rau kev siv khoom siv hluav taws xob, tab sis lawv muaj qhov kub me me hauv lub zog (-20℃rau -40 degree).
Ntawm - 20℃(ib qho chaw tsawg-kub ib puag ncig rau cov tsev / txuas hniav):
Qhov tsawg kawg nkaus cuam tshuam lub zog ntawm S355K2W yog40 J, uas yog 48% siab dua A588GRB's 27 J. Qhov no txhais tau tias S355K2W tuaj yeem nqus tau thiab tsim nyog dua rau qhov kub thiab txias.Ntawm -40℃(huab kub hnyav):
A5888GRB muaj qhov yuav tsum tau ua ntawm ntau dua lossis sib npaug rau 18562W tsis muaj qhov yuav tsum tau ua rau}}} kawm ntawv (nws tus qauv nkaus xwb). Txawm li cas los xij, txawm hais tias A588Grb tau raws li 180 tus nqi, tus nqi no tseem muaj ntau dua li S355k2W cov kev ua tau zoo dua yog qhov ntsuas kub tau yooj yim nws yog tsim rau.
Qhov sib txawv hauv kev cuam tshuam cov tawv nruj tsis yog tsuas yog "sib txawv" tab sis kuj cuam tshuam ntawm ob tus hlau 'tsim qauv rau kev thov cov xwm txheej:
S355k2w txoj kev tsim qauv:
Nws yog tsuas yog siv hauv European sab nraum zoov cov haujlwm (piv txwv li thaj tsam- Qhov chaw kub tshaj tawm cov yees) qhov twg kub heev poob rau {}} 20℃nyob rau lub caij ntuj no. Cov 40 J yam tsawg kawg nkaus cuam tshuam rau lub zog ua kom pom tseeb tias cov hlau tuaj yeem tiv thaiv tam sim ntawd (xws li kev sib tsoo sai) tsis muaj kev sib tsoo ntawm kev sib tsoo, txawm tias muaj qhov kub tsawg. Hauv cov phiaj xwm tiag tiag, muaj ntau cov tuam ntxhab tseem yuav tshaj cov qauv tsim nyog-50-00 J ntawm -20℃kom nce kev tswj cov npoo.A588 tus tsim lag luam - tawm:
Nws yog dav siv nyob rau hauv North American Siv (piv txwv li, kev tiv thaiv kev loj) qhov chaw huab cua muaj qhov kub tshaj plaws hauv lub caij ntuj no qis dua -30 degree). Nws cov qauv ua ntejTus nqi tswjthiabhwj txwvTshaj Ultra - qhov kev cuam tshuam loj heev, yog li qhov tsawg kawg nkaus cuam tshuam lub zog yog teeb qis dua. Rau cov phiaj xwm nyob rau hauv tsis tshua muaj huab cua txias cov cheeb tsam (piv txwv li cov neeg siv khoom me me), tab sis qhov no yuav nce nqi ntxiv thiab tsis yog qib kawm.
