Pab Pawg 1
Dab tsi yog Q235 kub - rolled steel?
Nws yog ib qho kev siv roj carbon ua ke nrog ib qho txiaj ntsig zoo ntawm ~ 235MPA, siv dav siv hauv kev tsim kho thiab tshuab Weldability thiab pheej yig.
Q3555 li cas sib txawv ntawm Q235?
Q355B tau muaj ntau dua lub zog (~ 355mpa) thiab cov tawv tawv zoo dua, haum rau hnyav {2} Dosture Drectures; Q235 yog rau cov kev siv kev ntxhov siab, tsis tshua muaj siab.
Dab tsi yog ovtm A36 sib npaug rau hauv Suav cov qauv?
Nws yog kwv yees sib npaug rau Q235, ob qho tib si ua cov pa roj carbon hlau nrog cov khoom zoo sib xws thiab siv hauv cov txheej txheem kev ua yeeb yam, txawm tias muaj tshuaj lom me ntsis sib txawv.
Dab tsi yog qhov chaw taw lub ntsiab tseem ceeb?
Nws muaj "Kuv hla -}}}} seem rau seem, siv rau cov nqaj hlau thiab cov kab ke hauv cov tuam tsev thiab cov choj.
Thaum xaiv h xoos dua I kab teeb?
H Beams muaj dav flanges, muab qhov muaj peev xwm zoo dua thiab muaj peev xwm ua tau zoo dua thiab muaj peev txheej zoo li cov chaw tsim khoom zoo li cov khoom lag luam zoo li cov chaw tsim khoom thiab cov siab}}} sawv.
Pawg 2
Yog Q235 haum rau high -} qhov chaw ib puag ncig?
Txwv; Nws lub zog poob ntawm Temps High, yog li nws zoo dua rau ambient lossis kev mob cua sov me me, tsis yog huab cua sov.
Dab tsi yog "b" hauv Q355B qhia?
Nws qhia qhov kev cuam tshuam qhov ntsuas kub: Q35B dhau cov kev ntsuam xyuas ntawm 20 degree, ua kom muaj zog nyob rau hauv ib puag ncig txias me me.
Dab tsi yog astm A36's daim ntawv thov raug?
Siv rau hauv cov choj, vaj tse, thiab qhov cav tov, muaj txiaj ntsig rau nws lub zog sib luag, ductility, thiab yooj yim ntawm cov fabrication.
Kuv yuav ua li cas thiaj taws tsim?
Tsim los ntawm kub dov, qhov twg steel bishts yog rhuab thiab zoo li tus Kuv hla}- seem, txhim kho cov qauv txheej txheem kev ntseeg.
Puas yog h nqajs costlier tshaj kuv cov nqaj?
Feem ntau yog, vim muaj cov ntaub ntawv ntau dua hauv cov flides dav, tab sis lawv cov kev ua tau zoo tshaj plaws tshwj xeeb tus nqi hauv cov phiaj xwm loj.
Pab pawg 3
Dab tsi yog Q235 cov ntsiab lus carbon ntxiv?
Nyob ib ncig ntawm 0.14-0.22%, qis txaus kom ntseeg tau zoo weldability, ua rau nws yooj yim los koom nrog ntawm vuam txheej txheem.
Muaj peev xwm Q355B hloov Q235 hauv txhua kis?
Tsis yog ib txwm; Q355B yog muaj zog tab sis kim dua, yog li nyiam dua rau tus nqi rau tus nqi {2} {{}} kev ntxhov siab siv.
ASTM A36 xav tau kev kho cua sov?
Tsis yog, nws tau siv nyob rau hauv qhov li - rolled mob, zoo li kub dov twb tau ua tiav cov khoom xav tau.
Dab tsi yog lub cev ua kom tau qhov hnyav ntawm I nqaj?
Lawv cov tawv nqaij tawv txo qhov hnyav thaum tswj lub zog, txuag khoom thiab ua kom muaj kev thauj mus los / kev teeb tsa.
Dab tsi yog lub Flange thickness txawv ntawm h thiab i nqaj?
H nqajs muaj tuab dua, dav dav flanges tshaj li kuv kab teeb, muab ntau dua kev tiv taus rau tom qab buckling nyob rau hauv load.
Pab pawg 4
Yuav ua li cas txheeb xyuas Q235 Hlau Visually?
Tsis muaj ib qho kev pom tshwj xeeb, tab sis feem ntau tsis ruaj khov, nrog tsaus grey, ntxhib me ntsis nti los ntawm kub dov; Daim ntawv pov thawj yog qhov tseem ceeb rau kev pom zoo.
Dab tsi yog Q355B lub tensile lub zog ntau?
Feem ntau 450-630MPA, siab dua Q235's 375's 375-500Mpa, ua rau nws zoo dua rau nrog cov rog rub tawm.
Dab tsi yog ovtm A36 qhov tsawg kawg nkaus zog zog?
36 KSI (≈250MPA), zoo ib yam li Q235, kom nws ua tau cov txheej txheem txheej txheem yooj yim hauv ntau yam kev ua vaj cav.
Qhov twg yog qhov teeb ci ci nyob qhov twg?
Hauv pem teb joists, ras rafters, thiab Choj girders, qhov chaw uas lawv tau txais cov khoom muag ntsug ntsug.
Dab tsi yog tus qauv ntev ntawm h cis?
Feem ntau 6-12 metres, customizable rau cov phiaj xwm tshwj xeeb, nrog ntev ntev muaj ntawm vuam lossis xaj tshwj xeeb.
Pawg 5
Q235 xav tau kev kho kom ntev?
Feem ntau yog, zoo li kev pleev xim lossis galvanizing, los tiv thaiv corrosion, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig huab cua lossis sab nraum zoov.
Yog Q355B weldable?
Yog, tab sis yuav tsum tau tsim cov txheej txheem vuam yog vim nws lub zog siab dua; txuam muab tub lim cov ntaub ntawv ua kom cov pob qij txha muaj zog.
Dab tsi yog astm A36 tus nqi elongation?
Yam tsawg kawg 20%, qhia tau tias nws ua kom muaj deform yam tsis muaj kev ntxhov siab hauv kev ntxhov siab, muaj kev nyab xeeb heev.
Kuv puas tuaj yeem cuam tshuam txiav rau kev cai ntev?
Yog lawm, yooj yim txiav nrog ntshav, oxy- roj, lossis Saws, los yog pom kev yoog raws qhov project.
Vim li cas h bars hu ua "thoob ntiaj teb"?
Vim tias lawv cov khaub lig hnav tsoos -} thauj khoom thiab ntau yam bearing -}}} cov qauv ntawm cov qauv txheej txheem thoob plaws kev lag luam.
