1.What yog qhov sib txawv hauv cov qib zog ntawm Q355B Galvanized steel thiab Q235B Galvanized steel?
Paib lub zog: cov paib lub zog ntawm Q355B yog li 51% siab tshaj li ntawm Q235b, uas yog nrog tus neeg sib tw loj "(xws li txhais tes sib tw thiab cov caj npab uas tsis sib xws).
Lub zog tensile: qhov txwv ntawm Q355B lub tensile lub zog yog kwv yees li 26% siab dua li ntawm Q235b. Nws tuaj yeem tiv thaiv qhov siab tshaj plaws tensile ua ntej tawg, ua kom haum rau cov xwm txheej ntawm cov hlua hlau (xws li cov hlua xees kho thiab choj.
Dab tsi yog khoov zog: tib cov tuab, q355B tsis yog tus tsim tawm thaum muaj cov txheej txheem sab nraud (xws li lub tsheb chassis pab cov kab teeb).
2.What yog qhov sib txawv ntawm cov yas ntawm Q355B Galvanized steel thiab q235b galvanized steel?
Q235B cov khoom siv hluav taws xob: cov txiaj ntsig zoo heev, nrog ib qho elongation tom qab pob txha lov (a) ntau dua los yog sib luag tsawg dua lossis sib npaug rau 16 hli).
Qhov no txhais tau ntau dua los ntawm kev ua kom zoo dua (piv txwv li, tawg}}} dawb huv (piv txwv li cov ntaub ntawv txias txias (piv txwv li cov khoom siv bending (piv txwv li cov khoom siv bending
Q355B cov khoom siv hluav taws xob: qis me ntsis qis dua, nrog ib tug elongation tom qab pob txha lov (a) ntau dua lossis sib npaug ntawm 22% (rau thickness tsawg dua los yog sib npaug rau 16 hli).
Thaum nws tseem tuaj yeem tiv thaiv kev ua haujlwm txias (piv txwv li, 90℃(piv txwv li deforming (130 kev tuag Kev tswjfwm kev nyab xeeb yog qhov tseem ceeb thaum ua tiav, ua rau nws ua tau zoo rau cov ntaub ntawv ua tau zoo thiab lub teeb ci ntsa iab txhawb nqa thiab thauj khoom {{cov kabmob nqaj).
3.Qhov yog qhov sib txawv hauv qhov kub tsis muaj ntsuas kub ntawm Q355B Galvanized steel thiab q235b galvanized steel?
Q235B cov hlau: Qhov no yog chav - kub steel tawv. Qhov yuav tsum muaj qhov cuam tshuam yog "kev cuam tshuam nqus lub zog loj dua los yog sib npaug ntawm 27J ntawm chav tsev kub (20 degree)." Nws tsis muaj qhov yuav tsum tau rau qis -} qhov dej ntws.
Cov kev txwv: hauv qhov qis -}}} 10℃txo qis, ua rau nws muaj kev cuam tshuam rau nkig tawg thaum muaj kev cuam tshuam. Nws tsis haum rau sab nraum zoov load - cov khoom siv hauv cov khoom txias nyob rau lub caij ntuj no, kab teeb hauv qis-qhov kub kev cob qhia).
Q355B cov hlau: Qhov no yog qhov qis -} alloy, siab- lub zog steel. Nws cov qhab nia "B" sawv rau "{{- 20℃tsawg txoj kev tsim nyog," xav tau "yuav tsum nqus lub zog loj dua los yog sib npaug ntawm 34 qib."
Cov txiaj ntsig: nws tswj hwm zoo heev cuam tshuam tseem nyob hauv qis {-} qhov chaw ib puag ncig thiab tsis muaj kev nkag mus rau brittle lov. Nws yog qhov haum rau sab nraum zoov qauv hauv cov cheeb tsam txias (piv txwv li cov neeg saib xyuas cov choj rau qis- kub txias cia khoom, thiab cov neeg tiv thaiv hauv nroog txias).
4.What yog qhov sib txawv hauv cov khoom ntiag tug ruaj khov tom qab vuam ntawm ob?
Q235B Galvanized Steelized: Lub hauv paus cov khoom muaj cov ntsiab lus carbon qis (tsawg dua los yog sib npaug rau 0.20%) thiab tsis muaj kev sib npaug tshwj xeeb. Preheating tsis tas yuav tsum muaj vuam (rau thicknesses tsawg dua los yog sib npaug rau 20mm). Lub zog ntawm welded ua ke yeej tseem ceeb phim uas ntawm cov khoom siv hauv paus, ua weld tawg tsawg dua. Cov txheej txheem pib yog tsawg, ua rau nws haum rau me thiab nruab nrab} {6}
Q355B Galvanized steel: lub hauv paus cov khoom muaj cov khoom siv xws li manganese thiab Vanadium (manganese cov ntsiab lus 0.50%} 1.60%). Preheating rau 100 {-} 150 Qib yog qhov yuav tsum tau rau cov hlau thicker (ntau dua lossis sib npaug kub (tsawg dua los yog sib npaug 0 degree). Txwv tsis pub, kev sib koom tes yuav tawg vim muaj kev ntxhov siab rau vuam. Txawm li cas los xij, tom qab vuam, lub zog sib koom tes (tawm los ntawm cov khoom siv hluav taws xob)
5.Txoj kev sib txawv ua cov khoom siv kho tshuab ua rau muaj cov xwm txheej siv tau?
Q235B Galvanized steel: chav chav nyob, lub teeb load, ua kom txias ua haujlwm; Zoo plasticity, yooj yim rau khoov / stamp, tsis muaj kev xav tau rau whehing rau vuam, tus nqi qis.
Q355B Galvanized steelized: tsawg kub ib puag ncig, hnyav load, cuam tshuam kev cuam tshuam; High tawm los / tensile lub zog, tsim nyog tsis muaj qhov kub kub ntawm {}}}}}}}}} kub cuam tshuam, haum rau hnyav-load txheej txheem.