Taw qhia rau Q345B Kub - Rolled Steel Sections H - Beam

Lus Txhais thiab Qauv

Q345B yog qib qis- alloy siab-lub zog steel qib. Lub "Q" sawv cev rau lub zog tawm los ntawm cov hlau, thiab "345" qhia tias qhov tsawg kawg nkaus lub zog ntawm cov hlau no yog 345MPa. "B" yog hais txog qib zoo, uas txhais tau hais tias qee qhov yuav tsum tau muaj rau kev cuam tshuam rau qhov sib txawv ntawm qhov kub thiab txias. H - beam, tseem hu ua I - beam, muaj tus ntoo khaub lig - seem zoo ib yam li tsab ntawv "H" lossis "Kuv". Nws muaj lub vev xaib (qhov ntsug) thiab ob lub flanges (qhov kab rov tav). Cov duab no muab cov khoom zoo heev - cov kabmob muaj peev xwm thiab cov qauv kev ruaj ntseg.

Tej kev siv

H - beams ua los ntawm Q345B kub - dov hlau yog dav siv nyob rau hauv kev tsim kho, machinery manufacturing, thiab lwm yam lag luam. Hauv kev tsim kho vaj tsev, lawv tau siv los ua lub luag haujlwm tseem ceeb - cov tswv cuab hauv lub moj khaum ntawm cov nroj tsuag kev lag luam, cov tsev siab siab, thiab txuas hniav. Piv txwv li, nyob rau hauv kev tsim kho ntawm ntau zaj dab neeg kev lag luam lub tsev, Q345B H - kab teeb yuav siv tau los txhawb qhov hnyav ntawm cov plag tsev thiab lub ru tsev, nrog rau kev tiv thaiv sab nraud xws li cua thiab seismic loads. Hauv kev siv tshuab, lawv tuaj yeem siv los ua cov khoom siv ntawm cov khoom siv loj loj.

Mechanical Properties ntawm Q345B H - Beam

Lub zog muaj zog

Raws li tau hais, qhov tsawg kawg nkaus lub zog ntawm Q345B steel yog 345MPa, thiab nws lub zog tensile feem ntau yog nyob ntawm 470 - 630MPa. Cov yam ntxwv ntawm lub zog no ua rau H-nqaj tuaj yeem nqa cov khoom hnyav yam tsis muaj qhov tseem ceeb ntawm cov yas deformation. Qhov sib piv ntawm flange dav rau lub web thickness thiab flange thickness rau lub web thickness kuj muaj feem xyuam rau lub load - bearing peev xwm thiab stability ntawm H - beam. Piv txwv li, ib tug dav flange thiab lub web thicker yuav ua rau kom lub sij hawm ntawm inertia thiab seem modulus ntawm lub beam, txhim khu nws lub peev xwm los tiv thaiv lub sij hawm khoov.

Lub elongation ntawm kev tawg ntawm Q345B steel yog ib qho khoom tseem ceeb. Nws feem ntau muaj qhov elongation ntawm ib ncig ntawm 21 - 26% (nyob ntawm seb cov khoom lag luam tshwj xeeb thiab kev kuaj mob). Qhov ductility no tso cai rau H - beam deform plastically rau qee yam ua ntej tawg, uas muaj txiaj ntsig zoo rau kev nqus lub zog thaum lub sijhawm thauj khoom hnyav xws li av qeeg lossis cuam tshuam.

Toughness thiab Impact Resistance

Q345B H - beam steel muaj zoo toughness. Qhov cuam tshuam toughness tus nqi ntawm qhov kub thiab txias (feem ntau yog chav tsev kub lossis qhov ntsuas kub tsawg) ua tau raws li cov qauv tsim nyog. Piv txwv li, nws tuaj yeem tiv taus qhov cuam tshuam tam sim ntawd thiab dynamic loads yam tsis muaj pob txha tawg. Nyob rau hauv cov cheeb tsam txias, nws qhov kev ua tau zoo ntawm qhov kub thiab txias kuj tseem raug txiav txim siab los xyuas kom meej tias nws tsis poob nws lub zog thiab lub zog, uas yog qhov tseem ceeb rau kev nyab xeeb thiab ruaj khov ntawm cov qauv.

 

 

 

Siab zog tshuaj muaj pes tsawg leeg
Qib	C	Si	Mn	P	S
DNV hlau	0.18	0.10-0.35	0.9-1.6	0.035	0.035

 

 

 

 

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb Q345B Kub Rolled Steel Sections H Beam, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom lag luam txhim khu kev qha thiab zoo heev thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

Cim npe nrov: q345b kub dov steel seem h beam, Tuam Tshoj q345b kub dov steel seem h beam lwm tus neeg, hoobkas