Rebar yog ib lub npe nrov rau kub dov ribbed steel tuav.Qib ntawm qhov kub-kuav los tiag steel bar muaj HRB thiab qhov tsawg kawg nkaus yield point ntawm qib.H, R, thiab B yog thawj tsab ntawv ntawm peb lo lus, Hotrolled, Ribbed, thiab Bars, feem.
Cov kub dov ribbed steel bar tau muab faib ua peb qib: HRB335 (qib qub yog 20MnSi), qib peb HRB400 (qib qub yog 20MnSiV, 20MnSiNb, 20Mnti), thiab qib plaub HRB500.
Muaj ob txoj hauv kev uas feem ntau siv rau kev faib cov rebar: ib qho yog muab faib los ntawm cov duab geometric, thiab muab faib los yog faib raws li cov duab sib dhos ntawm cov kab hla hla thiab qhov sib nrug ntawm cov tav.Hom II.Qhov kev faib tawm no feem ntau qhia txog kev ua haujlwm ntawm lub rebar.Qhov thib ob yog raws li kev ua tau zoo (qib), xws li kuv lub teb chaws tus qauv siv tam sim no, rebar yog (GB1499.2-2007) hlau pas nrig yog 1499.1-2008), raws li qib zog (yield point / tensile zog) Lub rebar muab faib ua 3 qib;nyob rau hauv Japanese Industrial Standard (JI SG3112), rebar muab faib ua 5 hom raws li kev ua tau zoo;nyob rau hauv British Standard (BS4461), ob peb qib ntawm rebar kev xeem ntawv kuj tau teev tseg.Tsis tas li ntawd, cov rebars kuj tuaj yeem raug cais raws li lawv cov kev siv, xws li cov hlau zoo tib yam rau cov pob zeb ua kom muaj zog thiab cov khoom siv hluav taws xob kho cua sov rau cov pob zeb ua kom muaj zog.
Rebar yog ribbed steel bar rau ntawm qhov chaw, tseem hu ua ribbed steel bar, feem ntau nrog 2 longitudinal tav thiab transverse ribs tusyees faib raws qhov ntev.Cov duab ntawm lub transverse tav yog kauv, herringbone thiab crescent duab.Qhia nyob rau hauv millimeter ntawm nominal txoj kab uas hla.Lub nominal txoj kab uas hla ntawm ib tug ribbed bar sib haum mus rau lub nominal txoj kab uas hla ntawm ib puag ncig bar ntawm sib npaug cross-section.Qhov nominal txoj kab uas hla ntawm lub rebar yog 8-50 hli, thiab cov kev pom zoo diameters yog 8, 12, 16, 20, 25, 32, thiab 40 mm.Ribbed steel tuav yog feem ntau raug rau tensile kev nyuaj siab hauv pob zeb.Vim qhov kev txiav txim ntawm cov tav, ribbed steel tuav muaj peev xwm sib txuas ntau dua nrog cov pob zeb, yog li lawv tuaj yeem tiv taus qhov kev txiav txim ntawm sab nraud.Ribbed steel tuav yog dav siv nyob rau hauv ntau lub tsev tsim, tshwj xeeb tshaj yog loj, hnyav, lub teeb nyias-walled thiab high-sawv vaj tse.
Rebar yog tsim los ntawm me me dov mills.Lub ntsiab hom ntawm me me dov mills yog: nruam, semi-nruab nrab thiab kab.Feem ntau ntawm cov tshiab thiab nyob rau hauv-siv me me dov mills nyob rau hauv lub ntiaj teb no yog tag nrho nruam.Nrov rebar mills yog dav dav-lub hom phiaj high-speed dov rebar mills thiab 4-slice high-production rebar mills.
Lub billet siv nyob rau hauv lub nruam me me dov zeb feem ntau yog ib tug nruam casting billet, sab ntev yog feem ntau 130 ~ 160mm, qhov ntev yog feem ntau hais txog 6 ~ 12 meters, thiab ib tug billet nyhav yog 1.5 ~ 3 tons.Feem ntau ntawm cov kab dov yog alternated horizontally thiab vertically, kom ua tiav torsion-dawb dov hla txoj kab.Raws li cov qauv sib txawv thiab cov khoom tiav tiav, muaj 18, 20, 22, thiab 24 me me dov mills, thiab 18 yog lub ntsiab.Bar dov feem ntau yog siv cov txheej txheem tshiab xws li cov cua kub cua sov, kev kub siab dej descaling, qis kub dov, thiab dov tsis kawg.Rough dov thiab nruab nrab dov yog tsim los hloov mus rau cov ntawv loj loj thiab txhim kho dov qhov tseeb.Kev ua tiav mills feem ntau txhim kho qhov tseeb thiab nrawm (txog 18m / s).Cov khoom specifications feem ntau yog ф10-40mm, thiab kuj muaj ф6-32mm los yog ф12-50mm.Cov qib steel ua tau qis, nruab nrab thiab siab carbon steel thiab cov hlau tsis tshua muaj hlau uas xav tau los ntawm kev ua lag luam;Qhov siab tshaj plaws dov ceev yog 18m / s.Nws cov txheej txheem ntau lawm yog raws li nram no:
Taug kev rauv → roughing zeb → intermediate dov zeb → xov zeb → dej txias ntaus ntawv → txias txaj → txias shearing → tsis siv neeg suav ntaus ntawv → baler → unloading sawv.Cov mis laij lej hnyav: sab nraud Х sab nraud Х0.00617 = kg / m.
Post lub sij hawm: Aug-02-2022