Cov phaj yog tsuas yog siv hauv kev tsim kho, choj tsev, thiab tsim cov qauv steel rau kev siv dav dav. Carbon thiab low-alloy dov steel nrog zoo weldability, siab zog, ductility thiab tawg tsis kam yog nyob rau hauv siab thov nyob rau hauv no ya. Rau qee qhov kev siv, cov qauv dov steel yuav tsum tau txhim kho atmospheric corrosion kuj.
|
Qhov ntau thiab tsawg |
Thickness: 4-200 hli, Dav: 1500-3800 hli, Ntev:<20000 mm |
|
Qhov hnyav |
<20 t |
|
Cov qib steel hauv |
S235JR, S235J0, S235J2, S275JR, S275J0, |
|
Kev xa khoom xa tuaj |
Kub dov, normalized dov los yog normalised, |
Kev faib tawm steel qauv thiab cov khoom
Cov qauv steel phaj npaj rau kev tsim kho, choj tsev thiab lwm yam steelwork fabrication yog tsim raws li thoob ntiaj teb thiab lub teb chaws tus qauv, feem ntau ntawm cov uas yog:
- Cov txheej txheem European EN 10025 thiab nws qhov sib npaug Ukrainian DSTU EN 10025 "Cov Khoom Kub Kub Rolled Cov Khoom Siv Hluav Taws Xob" (rau qhov chaw), qhia txog cov txheej txheem kev xa khoom rau kub-dov tsis-alloy, normalised, thermomechanically dov thiab quenched steel, thiab steel nrog txhim kho atmospheric siab. corrosion kuj
- US cov qauv ASTM A36 / A36M, ASME A36 / A36M, ASTM A283 / A283M, ASME A283 / A283M, ASTM A514 / A514M, ASME A514 / A514M, ASTM A572 / A572M, ASME A575, ASTM A5 A633 / A633M, ASTM A709 / A709M, ASTM A830 / A830M, thiab lwm yam, uas piav qhia txog cov khoom siv dov ntawm tus qauv-lub zog, nruab nrab-lub zog thiab siab zog carbon, qis-alloy thiab alloy structural steels
- Canadian tus qauv CSA-G 40.21 rau cov qauv hlau
- Japanese qauv JIS G 3101, JIS G 3106 rau dov hlau rau cov qauv dav dav, suav nrog cov qauv welded
- Ukrainian thiab CIS cov qauv DSTU 8803/GOST 14637, GOST 1577, DSTU 8541/GOST 19281, DSTU 8539/GOST 27772, DSTU 7806/GOST 4543, DSTU 88171/GOST. } }, thiab lwm cov qauv thiab cov kev cai rau kev qhia tshwj xeeb ntawm cov qauv dov steel
Daim ntawv thov cov qauv thiab dav siv steel
Cov qauv steel phaj npaj rau steelwork fabrication:
Welded H-beams, kab thiab lwm yam kev txhawb nqa profiles ua los ntawm kev txiav thiab ua cov hlau phaj
Lub tsev floorings thiab cov ntsiab lus ntawm superstructure ntawm txuas hniav, highlines thiab galleries
Cov kav dej nruab nrab thiab loj-ntev, uas tuaj yeem siv tau rau ob qho tib si rau cov kab hluav taws xob (pipelines, chimney stacks, cabling, thiab lwm yam) thiab raws li kev txhawb nqa rau kev tsim kho thiab txuas hniav.
Cov qauv steel phaj ntawm kev txhim kho lub zog thiab lub zog siab ua rau nws muaj peev xwm tsim cov qauv steel ntau dua los yog txo qis tag nrho cov hlau siv nyob rau hauv qhov project los ntawm kev txo cov ntu loj ntawm cov tswv cuab ua los ntawm cov hlau muaj zog zoo li piv nrog cov khoom siv nrog tib lub compression. zog. Siv cov thermomechanically dov los yog quenched steel daim hlau rau welded kab ntawm niaj hnub high-sawv vaj tse tuaj yeem muab 20-30% kev txuag hauv cov hlau dov.
Kev tsim kho thiab kho dua tshiab
Kev tsim kho choj
Tsim cov qauv steel rau ntau yam kev siv
Kev tsim cov qauv thiab cov hom phiaj dav dav hlau phaj
Cov qauv phaj feem ntau yog tsim los ntawm kev thim rov qab kub dov mills (tseem los ntawm kev txiav kub dov coils rau hauv daim hlau). Nruam nrum los yog kub dov slabs yog siv los ua khoom noj los tsim cov phaj. Cov phaj yog tsim los ntawm cov pa kub dov lossis siv cov txheej txheem thermal deformation tshwj xeeb thiab kev kho cua sov ntawm cov khoom tiav. Cov txheej txheem tseem ceeb ntawm cov txheej txheem hlau rau cov phaj siv hauv kev tsim kho thiab kev siv dav dav suav nrog:
- Kub dov yog txheej txheem hlau ua haujlwm uas hlau deformed ntawm qhov kub thiab txias thiab tom qab ntawd cua txias. Rolling kub thiab xov kub ntawm dov yog nyob rau hauv lub austenite recrystallisation kub ntau yam, tshaj qhov raug normalizing kub.
- Annealing yog txheej txheem kev kho cua sov sab nraum ib txoj kab dov, uas muaj cov cua sov hlau mus rau qhov kub siab tshaj qhov kev hloov pauv thiab tom qab ntawd tuav thiab txias nws ntawm tus nqi qeeb nrog rau lub qhov cub. Thaum annealed, steel tau ntau dua ductility thiab qis hardness. Muaj ntau hom annealing, uas yog ib feem, tag nrho, qis-kub, diffusion thiab recrystallisation annealing. Yog hais tias, tom qab cua sov, cov khoom yog txias nyob rau hauv cov huab cua es tsis yog nyob rau hauv lub cub tawg, xws li cov txheej txheem yog hu ua normalising. Hom kev kho cua sov no txhim kho lub zog steel piv nrog annealed steel.
- Normalizing dov yog txheej txheem hlau deformation ntawm qhov kub siab, thaum tag nrho deformation tshwm sim ntawm qhov kub thiab txias nrog kev ua tiav recrystallisation ntawm austenite.
- Quenching thiab tempering yog txheej txheem kev kho cua sov los txhim kho lub zog steel. Quenching muaj cua sov mus txog qhov kub thiab txias (tshaj Ас3), tuav thiab txias ntawm tus nqi siab siv ntau yam xov xwm (dej, roj, ethers, thiab lwm yam) Txhawm rau tso cov kev ntxhov siab sab hauv tom qab quenching, cov hlau dov yuav raug tempering ntawm qhov kub thiab txias uas tswj tau raws li qhov yuav tsum tau muaj.
- Cov txheej txheem thermomechanical tswj (TMCP) yog cov txheej txheem uas muab qhov kub thiab txias thiab deformation tswj thaum kub deformation ntawm lub tshuab dov. Tsis muaj lwm txoj kev kho mob tuaj yeem muab cov khoom zoo li TMCP.
Cim npe nrov: Tuam Tshoj structural thiab dav siv steel, Tuam Tshoj tus qauv thiab dav siv steel manufacturers, lwm tus neeg, Hoobkas
