Qhov sib txawv ntawm kub dov thiab txias dov yog qhov kub ntawm dov txheej txheem. "Cold" txhais tau tias qhov kub thiab txias, thiab "kub" txhais tau tias kub siab. Los ntawm kev pom ntawm metallurgy, ciam teb ntawm txias dov thiab kub dov yuav tsum tau txawv los ntawm recrystallization kub. Ntawd yog, qhov dov hauv qab qhov kub ntawm recrystallization yog txias dov, thiab dov saum toj no lub recrystallization kub yog kub dov. Lub recrystallization kub ntawm steel yog 450-600 ℃.
Cov hauv qab no yog ib qho piv txwv ntawm cov lus teb rau cov lus nug txog [Qhov txawv ntawm qhov kub dov thiab txias dov]:
Qhov sib txawv ntawm qhov txias dov thiab kub dov yog qhov kub ntawm cov txheej txheem dov. "Cold" txhais tau tias qhov kub thiab txias, thiab "kub" txhais tau tias kub siab. Los ntawm kev pom ntawm metallurgy, ciam teb ntawm txias dov thiab kub dov yuav tsum tau txawv los ntawm recrystallization kub. Ntawd yog, qhov dov hauv qab qhov kub ntawm recrystallization yog txias dov, thiab dov saum toj no lub recrystallization kub yog kub dov. Lub recrystallization kub ntawm steel yog 450-600 ℃
Kub dov thiab txias dov yog cov txheej txheem ntawm kev tsim cov hlau phaj lossis cov profiles, uas muaj kev cuam tshuam zoo rau cov qauv thiab cov khoom ntawm cov hlau. Cov dov ntawm cov hlau tsuas yog kub dov, thiab txias dov tsuas yog siv los tsim cov hlau me me thiab nyias phaj. Ingots los yog billets yog qhov nyuaj rau deform thiab txheej txheem ntawm chav tsev kub. Feem ntau, lawv tau rhuab mus rau 1100-1250 ℃ rau dov. Cov txheej txheem dov no hu ua kub dov. Qhov kawg kub ntawm kub dov yog feem ntau 800-900 ℃, thiab ces nws yog feem ntau txias nyob rau hauv cov huab cua, yog li lub kub dov lub xeev yog sib npaug rau normalizing kev kho mob. Cov hlau feem ntau yog dov los ntawm kub dov. Txias dov yog hais txog txoj kev dov ntawm extruding steel thiab hloov cov duab ntawm cov hlau nrog lub siab ntawm cov yob ntawm chav tsev kub. Txawm hais tias cov txheej txheem ua haujlwm tseem yuav ua rau cov phaj hlau sov, nws tseem hu ua txias dov.
Cov ntaub ntawv no qhia txog cov txheej txheem kev xa khoom rau lub zog siab thiab huab cua tiv thaiv hluav taws xob welded thiab submerged arc welded txias tsim steel qauv hollow seem ntawm ncig, square, duab plaub lossis elliptical thiab tsim txias yam tsis muaj kev kho cua sov tom qab uas tsis yog kev kho cua sov ntawm cov kab vuam. . CEEB TOOM 1 Cov kev cai rau kev kam rau siab, qhov ntev thiab cov khoom seem tuaj yeem pom nyob rau hauv EN 10219 2. CEEB TOOM 2 Kev saib xyuas ntawm cov neeg siv tau raug coj los rau qhov tseeb tias thaum txias tsim cov qib hauv cov ntaub ntawv no tuaj yeem muaj cov khoom sib npaug rau cov qib kub tiav hauv EN 10210 3, cov khoom seem ntawm cov square thiab square hollow seem hauv EN 10219 2 thiab EN 10210 2 tsis sib npaug. CEEB TOOM 3 Ntau yam ntawm cov qib steel tau teev tseg hauv daim ntawv no thiab tus neeg siv tuaj yeem xaiv cov qib uas tsim nyog tshaj plaws rau kev siv thiab kev pabcuam. Cov qib thiab cov khoom siv kho tshuab, tab sis tsis yog qhov kawg ntawm cov khoom siv txias ua hollow feem ntau piv nrog cov hauv EN 10025 3, EN 10025 4, EN 10025 5, EN 10025 6, EN 10149 2 thiab EN 10149 3.
TS EN 10210-3-2020
Kub tiav steel qauv hollow seem- Ntu 3: Cov txheej txheem xa khoom rau lub zog siab thiab huab cua resistant steels
Cov ntaub ntawv no qhia txog kev xa khoom rau lub zog siab thiab huab cua tiv taus kub-tiav seamless, hluav taws xob welded thiab submerged arc welded steel qauv hollow seem ntawm ncig, square, duab plaub lossis elliptical. Nws siv rau hollow seem tsim kub, nrog los yog tsis muaj kev kho cua sov tom qab, los yog tsim txias nrog tom qab kub kev kho mob saum toj no 580 ° C kom tau cov khoom sib npaug rau cov neeg tau txais hauv cov khoom kub tsim. CEEB TOOM 1 Cov kev cai rau kev kam rau siab, qhov ntev thiab cov khoom seem tau teev tseg hauv EN 10210-2. CEEB TOOM 2 Kev saib xyuas ntawm cov neeg siv tau kos rau qhov tseeb tias thaum lub caij txias tsim cov qib hauv EN 10219-3 tuaj yeem muaj cov khoom sib npaug rau cov qib kub ua tiav hauv cov ntaub ntawv no cov khoom seem ntawm cov square thiab cov duab plaub hollow seem hauv EN 10210-2 thiab EN 10219-2 tsis sib npaug. CEEB TOOM 3 Ntau yam ntawm cov ntaub ntawv qib tau teev tseg hauv daim ntawv no thiab tus neeg siv tuaj yeem xaiv cov qib uas tsim nyog tshaj plaws rau kev siv thiab kev pabcuam. Cov qib thiab cov khoom siv kho tshuab ntawm cov seem hollow tiav yog feem ntau piv nrog rau hauv EN 10025-4, EN 10025-5 thiab EN 10025-6. CEEB TOOM 4 Cov kev cai rau seamless thiab welded steel structural hollow seem rau siv nyob rau hauv offshore qauv yog them nyob rau hauv EN 10225 series. CEEB TOOM 5 Kauv welded hollow seem yuav tsum tau siv nrog ceev faj nyob rau hauv daim ntawv thov uas muaj xws li dynamic cwj pwm (kev qaug zog kev nyuaj siab) li, txog tam sim no, muaj tsis txaus cov ntaub ntawv hais txog lawv cov kev ua tau zoo.
Qhia txog daim ntawv thov dav ntawm lub raj txias-tsim duab plaub
Nyob rau hauv Tuam Tshoj txoj kev lag luam thiab pej xeem vaj tse, cov pob zeb siv dag zog tau siv ntau xyoo
Lub voj voog ntev thiab hnyav hnyav. Nyob rau hauv xyoo tas los no, nrog rau kev vam meej ntawm kub dovH-beamcov khoom ntawm Ma Steel thiab Lai Steel
Raws li kev lag luam qhia, daim ntawv thov ntawm cov qauv steel hauv kev tsim kho kev lag luam tau nthuav dav. Ntau yam steel qauv kev sim cov tsev, qauv tsev thiab cov tuam tsev landmark tau qhia ib qho tom qab. Cov qauv thiab cov lus qhia tshwj xeeb rau kev tsim thiab kev tsim kho kuj tau pib nkag mus rau theem ntawm kev txhim kho maj mam. Tuam Tshoj txoj kev lag luam steel qauv tau ua zoo strides nyob rau hauv xyoo tas los no.
Txawm li cas los xij, tam sim no, Tuam Tshoj lub tsev steel qauv yog tsuas yog siv rau kub dov H-shaped steel thiab ntau yam welded steel qauv. Lub peev xwm ntawm kub dov H-zoo li tus hlau nyob rau hauv Tuam Tshoj tau mus txog 3 lab tons, thiab cov zis ntawm welded lub teeb H-zoo li tus hlau thiab ntau yam steel lug kuj yog ob peb puas txhiab tons. Cov zis ntawm welded kav nyob rau hauv Tuam Tshoj yog ntau tshaj 7 lab tons ib xyoo, uas cov zis ntawmtxias-formed square thiab rectangular kavthiab ntau yam txias-tsim steel qauv rau lub tsev steel qauv yog tsawg tshaj li 5% ntawm tag nrho cov zis ntawm txias-tsim steel. Daim ntawv thov ntawm txias-tsim steel nyob rau hauv industrial thiab civil tsev steel lug nyob rau hauv Tuam Tshoj yog nyob rau hauv thawj theem. Qhov txias-tsim square thiab rectangular qauv welded yeeb nkab tau nyuam qhuav pib hloov cov kub-kuav los tiag H-zoo li tus hlau raws li cov steel qauv kem. Lwm yam txias-formed steel yog tsawg siv nyob rau hauv kev tsim kho kev lag luam.
yuantai steel hollow seem rau crane,yuantai seamless hollow seem,yuantai square hollow seem
Tam sim no, Ministry of Construction tau tsim ib co steel qauv kuaj vaj tse nyob rau hauv industrial thiab civil vaj tse, xws li
Ob lub steel qauv ua qauv qhia qhov chaw nyob ntawm Ministry of Construction tau tsim nyob rau hauv Tianjin hauv xyoo 2002. Cov kav hlau tau siv rau hauv qhov project no.
Concrete kem steel beam thav duab steel reinforced qhob tub ntxhais tube (SRC) structural system, tag nrho qhov project cheeb tsam
8000m2, lub cev tseem ceeb muaj kaum ib pem teb, ib kem yog ua los ntawm cov yeeb nkab puag ncig, thiab lwm kem yog ua los ntawm square steel yeeb nkab
350x350mm, lub thickness sib txawv nrog rau hauv pem teb, uas 1 ~ 3 pem teb yog 16 hli, 4 ~
14mm rau pem teb 6, 12mm rau pem teb 7 mus rau 9th, 10mm rau 10th mus rau 11th pem teb, thiab nchuav rau hauv cov yeeb nkab steel
C40 pob zeb.
Lub beam yog ua los ntawm welded I-nqaj nrog cov specification ntawm 350x200x10x18mm, thiab pem teb slab
Nws yog prestressed composite slab nrog high-strength kauv rib reinforcement. Thaum lub sijhawm ntawd, tsis muaj chaw tsim khoom hauv Suav teb tsim cov raj square nrog lub taub loj, yog li square steel hlab tau siv rau hauv qhov project, uas yog plaub phaj welded BOX txhua.
Cov qauv steel qauv ua qauv qhia vaj tsev nyob ntawm Ministry of Construction Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd. kos ob qhov kev tshoov siab los ntawm daim ntawv thov txias-tsim seem steel (tsuas yog lub raj raj) hauv steel qauv vaj tsev:
Ua ntej, qhov chaw ua lag luam rau qhov loj me me txias-tsim lub raj yog loj, thiab tus naj npawb tsim nyog ntawm cov plag tsev rau cov qauv hlau nyob yog
Nrog 10 ~ 18 plag tsev, xws li nruab nrab thiab siab siab cov qauv kuj muaj qee yam yuav tsum tau ua rau cov lus qhia tshwj xeeb ntawm cov hlab ntsha txias.
Thib ob, square steel kav muaj qhov zoo tshaj plaws ntawm cov kav hlau puag ncig rau peb lub laj thawj:
Ua ntej, cov kav dej square thiab puag ncig nrog tib sab ntev thiab txoj kab uas hla muaj peev xwm zoo dua thiab kev ua haujlwm seismic
Zoo. Raws li qhov kev sim ua los ntawm ib lub tsev kawm ntawv qib siab hauv Tianjin ntawm peb zaj dab neeg ob lub voj voog square raj thiab lub voj voos kheej kheej kab ke
Sab ntev ntawm cov yeeb nkab kab yog 150mm, thiab txoj kab uas hla ntawm cov yeeb nkab puag ncig yog 150mm. Cov txiaj ntsig kev sim qhia tau hais tias yav dhau los yog resistant rau lateral force yield bearing
Lub peev xwm thauj khoom thiab qhov kawg ntawm cov kabmob muaj peev xwm yog 80% siab dua li yav tas los, thiab cov seismic Performance index yog li ob zaug ntawm qhov kawg;
Qhov thib ob, square yeeb nkab siv tau yooj yim dua. Lub pob zeb pob zeb ntawm steel qauv nyob rau hauv yuav tsum tau ntxiv
Rau kev tsim kho, ntu puag ncig yog hloov mus rau seem square;
Thib peb, nws yog ib qho nyuaj rau kev sib txuas ntawm cov kab vaj huam sib luag thiab kab teeb. Yav tom ntej steel qauv hauv Suav teb
Nyob rau hauv kev ua lag luam, txias-tsim square thiab plaub lub raj yuav muaj ib qho tseem ceeb.
Kev kho cua sov saum npoo ntawm cov yeeb nkab steel tuaj yeem txhim kho qhov qaug zog txwv ntawm cov khoom ua haujlwm. Piv txwv li, cov cuab yeej ua haujlwm qub ntawm lub tsheb ib nrab qag ua los ntawm cov hlau yog kev kho cua sov zoo tib yam, thiab nws lub neej kev pab cuam tau nce los ntawm ze li ntawm 20 npaug los ntawm kev hloov pauv los ntawm kev kho cua sov rau kev kho cua sov. Tsis tas li ntawd, kev kho cua sov ntawm qhov chaw yuav txo tau qhov tsis txaus siab ntawm qhov chaw. Lub hom phiaj ntawm kev kho cua sov saum npoo yog txhawm rau txhim kho cov yam ntxwv ntawm cov khoom. Nws yog dav siv nyob rau hauv ntau yam teb, uas yog ze ze rau cov yam ntxwv ntawm ob qho tib si.
Post lub sij hawm: Dec-21-2022
