Ramming pawg

Cov kev daws teeb meem hauv ob qho tib si ferrous thiab non-ferrous industries cia siab rau lub neej ntev ntawm cov khoom tseem ceeb (coreless induction furnaces, lub tshuab nqus tsev vacuum, channel furnaces, pouring ladles, launders, crucibles, spouts, thiab lwm yam). Cov neeg tsim khoom lag luam tsom kom tswj tau tus txheej txheem siab ntawm kev ua tiav zoo los ntawm kev tsim kho tshiab thiab cov nqi tsim nyog cov kev daws teeb meem; los ntawm sab hauv txheej cov khoom no siv cov ntaub ntawv refractory. Cov kev daws teeb meem refractory no yuav tsum tau ua raws li ntau yam ntawm cov qauv tsim thiab kev ua haujlwm tseem ceeb, suav nrog cov tshuaj lom neeg ntawm cov khoom siv molten, cov qauv tsim, qhov kub thiab txias, thiab lwm yam. Txhawm rau daws cov teeb meem kev siv tshwj xeeb. Tshwj xeeb tshaj yog cov kev ua tau zoo nruab nrab nruab nrab ramming masses yog siv rau steel ntau lawm nyob rau hauv coreless furnaces uas silica linings tau tam sim no siv nrog mitigated ua yeeb yam.

Silica linings yog cov pa hauv ob sab phlu daws siv dav hauv ob qho tib si ferrous thiab non-ferrous foundries. Feem ntau yog ua los ntawm crystalline silica thiab feem ntau hu ua acidic ramming mass, cov neeg ua haujlwm khi zoo uas pab hauv sintering ntawm silica linings yog boron-based. Qhov no refractory hauv ob sab phlu nthuav tawm tsuas yog tsis tshua muaj thermal expansion thiab muaj thermal shock kuj zoo heev. Txawm li cas los xij, silica hauv ob sab phlu yog qhov cuam tshuam rau corrosion thiab ua rau muaj kev pheej hmoo siab dua ntawm cov tshuaj reactivity nrog molten hlau thiab slags. Tshwj xeeb tshaj yog thaum nyob rau hauv kev sib cuag nrog yooj yim molten slags, silica linings muaj peev xwm ua rau cov tshuaj erosion hnyav.

Neutral ramming masses yog ib qho tshwj xeeb, tshuaj lom neeg nruab nrab cov tshuaj uas tsim cov hauv ob sab phlu. Cov spinels nyob rau hauv-situ synthesize ntawm kub kub nyob rau hauv lub refractory hauv ob sab phlu, tsim ib tug tshwj xeeb 3- txheej txheej. Cov txheej txheej sab nraud tshaj plaws hauv kev sib cuag nrog cov hlau molten yog ib qho nyuaj, sintered nto, ua raws li cov txheej txheem nruab nrab fritted. Lub innermost txheej nyob twj ywm nyob rau hauv ib tug powdery daim ntawv. Foundry kev daws teeb meem raws li cov txheej txheem multilayered muaj ntau yam zoo. NRMs nthuav tawm qhov txawv ntawm microstructure tus yam ntxwv los ntawm microcracks uas muab cov txheej txheem toughening, txhim kho cov khoom siv tshuab zoo. Lub innermost sintered, tawv txheej muab zoo heev hnav thiab corrosion kuj (tawm tsam chemically hnyav slags). Thaum cov txheej txheej sab hauv raug los yog eroded, cov txheej txheem nruab nrab sinters nyob rau hauv situ ntawm spinel tsim thaum raug kub. Yog li ntawd, qhov kev ncaj ncees ntawm cov ntaub yog khaws cia txawm nyob rau hauv cov ntaub ntawv ntawm cov ntaub qhwv.

Kev ua kom zoo ntawm 3- txheej txheej thiab cov yam ntxwv txhim khu kev tiv thaiv corrosion thiab tiv thaiv molten hlau to, ntxiv rau kev nyab xeeb ntawm cov neeg ua haujlwm. Qhov nruab nrab ramming masses kuj muaj tshuaj lom neeg ruaj khov nyob rau hauv ob qho tib si acidic thiab hauv paus xov xwm. Tag nrho cov khoom no ntawm nruab nrab ramming masses ua rau lawv zoo tagnrho, lub xeev-of-the-art foundry tov rau high-temperature Cheebtsam xws li lub induction blast furnace. Tsis tas li ntawd, qhov nruab nrab ramming masses yog cov tshuaj ntsuab dua piv nrog cov silica-based refractories. Peb tau cog lus los pab cov neeg siv khoom kom txo tau lawv cov pa roj carbon monoxide kom txo tau cov pa roj carbon monoxide raws li cov phiaj xwm zero pib siv rau hauv ntau lub khw.

Lub ramming loj yog hais txog ramming (manual or mechanical) txoj kev ntawm kev tsim kho, thiab hardened nyob rau hauv cov cua sov nyhuv yog siab tshaj li ib txwm kub nyob rau hauv lub unshaped refractory ntaub ntawv. Los ntawm refractory aggregate, nrog rau tej yam gradation ntawm hmoov, binder, additive dej los yog lwm yam kua tom qab mixing.Raws li cov khoom faib nrog siab alumina, av nplaum, magnesite, dolomite, zirconium thiab silicon carbide carbon refractory ramming khoom.Function: ramming khoom yog tsim. ntawm silicon carbide, graphite, hluav taws xob calcined anthracite li raw khoom, tov nrog ntau yam ultra-fine hmoov additives, fused cement los yog composite resin raws li lub binder ua los ntawm tej cement.To sau qhov sib txawv los yog stack txias khoom thiab masonry masonry muab tub lim.

Cov txheej txheej nrog acidic, nruab nrab thiab alkaline ramming cov khoom siv dav siv hauv nruab nrab zaus coreless rauv tub ntxhais induction rauv, xws li cov khoom siv hluav taws xob ramming siv rau melting aluminium thiab nws cov alloys, melting ntawm tooj liab, tooj dag, tooj liab thiab tooj liab thiab tooj liab alloy thiab lwm yam. Cov pa roj carbon ramming loj ua piv txwv: raws li qhov sib txawv ntawm qhov sib txawv ntawm lub qhov cub tawg thiab cov khoom tsim tsim ntawm cov khoom sib txawv ntawm cov pa roj carbon monoxide feem ntau yog siv rau qhov cub tawg carbon cib thiab hauv qab sealing qhov sib txawv ntawm cov phaj thiab carbon cib thiab cov phab ntsa txias, thiab sau lub cub tawg hauv qab dej txias tube hla lub hauv paus kab ntawm theem thiab cua txias phab ntsa, txhua qhov yuav tsum tau los ntawm ramming carbon ramming tom qab ramming loj muaj ib tug tej yam lub zog thiab ceev, thiab puv txhua ces kaum ntawm ib tug me me qhov sib txawv, kom tsis txhob muaj kub kub. hlau thiab roj thov, Kev faib tawm thiab kev tsim kho: tag nrho cov khoom siv ceramic ramming uas muaj cov khoom siv tau muab faib ua: av nplaum, siab alumina, carbon, magnesium thiab dolomite.

High aluminium (los yog av nplaum) ramming loj kev tsim kho: sib tov coarse aggregate thiab binder rau kev faib ua feem ntawm (high alumina MAAs, tau ntxiv rau lub tov khoom quab yuam nyob rau hauv qhuav mix 1 ~ 2min), ua raws li los ntawm kev ntxiv kom muaj nuj nqis sib tov txog 5min. Cov khoom siv carbon ramming rau kev tsim cov khoom siv carbon ramming tuaj yeem siv rau hauv qhov txias lossis kub tamping tamping txoj kev uas feem ntau siv txoj kev tsim kho, kev tsim kho yog yooj yim rau txoj kev txias ramming yuav tsum tau saws. Tsis muaj teeb meem dab tsi cov khoom siv carbon siv txoj kev, txais yuav cov khoom tiav. Cov khoom siv cua txias ramming tuaj yeem muab tso ncaj qha rau hauv kev siv.Kub ramming loj ntawm cov pa roj carbon, cov khoom siv carbon yuav tsum tau ua ntej crushing, thiab cov cua sov tsis sib xws, sib tov kub thiab cua sov raws li cov khoom tiav. Yuav tsum tsis muaj cov pa roj carbon monoxide tom qab cua sov, ramming rauj yuav tsum tau rhuab mus rau tsaus xim av, qhov kub yuav tsum tsis txhob tsawg tshaj li 70 degrees.Magnesia ramming loj rau kev tsim kho ntawm magnesia ramming cov ntaub ntawv nrog nws txawv tar bonded magnesia, magnesia los ntawm brine ob, siv rau converter, hluav taws xob rauv, tooj liab reverberatory rauv, rauv hauv qab qhov chaw thiab lwm yam.. Tar magnesia ramming khoom ua ntej tsim, yuav tsum cov thee tar yog rhuab mus rau 130 DEG C rau lub cev qhuav dej, magnesia thiab hlau oxide hmoov yog rhuab mus rau 1100 ntau tshaj qhuav.

Acid ramming loj
Cov khoom siv acid ramming yog premixed ramming loj ntawm cov khoom siv hauv ob sab phlu. Lub refined siab silicon, tsawg hlau quartz xuab zeb thiab quartz hmoov raug xaiv thiab fused quartz xuab zeb yog ntxiv raws li cov khoom siv refractory. Cov khoom muaj siab refractoriness, tsis muaj slag, tsis muaj tawg, pov thawj damp, yooj yim ntawm kev kho, thiab corrosion kuj, yog li zoo heev txhim kho lub cub tawg kev pab cuam lub neej ncua thiab nyiaj txiag pab. Acid ramming loj tuaj yeem siv dav hauv kev ua haujlwm tsis tu ncua lossis kev ua haujlwm tsis sib xws ntawm cov hlau nplaum, grey cam khwb cia hlau, carbon steel thiab qis melting point alloy. Cov kua qaub ramming loj yog siv los ua cov khoom siv hlau xws li cov hlau zoo tib yam, 45 # steel thiab carbon steel. Cov khoom siv kua qaub zoo tuaj yeem siv tau ntau dua 120 zaug thiab txog 180 zaug. Lub acidic refractory ramming uas yog siv los yaj grey cam khwb cia hlau, pob cam khwb cia hlau, thiab lwm yam, yuav siv tau ntau tshaj 350 zaug thiab mus txog 500.
 

Basic ramming loj
Basic ramming mass feem ntau yog hais txog cov magnesia raws li refractory huab hwm coj siv raws li cov ntaub ntawv refractory nyob rau hauv lub cub tawg. Magnesia ramming khoom yog ib qho khoom siv ua los ntawm fused magnesia li raw khoom, nrog ntau yam superfine hmoov additives thiab fused cement los yog composite resin li binder. Nyob rau hauv qhov tsis yog-core induction rauv, eaf hearth, kub thiab txias steel launders, peb tuaj yeem nrhiav tau daim ntawv thov ntawm qhov yooj yim ramming pawg.
 

Silica ramming mass
Lub silica ramming loj yog ua los ntawm high purity microcrystalline quartz xuab zeb, hmoov, ntxiv high-temperature sintering flux, thiab mineralizer. Vim hais tias nws yog tsim nyog faib tsim qauv, nws tuaj yeem tau txais ntau txoj hauv kev ntawm txhua yam ntawm pob cying. Lub silica ramming loj yog tsuas yog siv rau kev ua hauj lwm hauv ob sab phlu ntawm non-core induction rauv rau melting thiab tuav cam khwb cia hlau. Qhov feem pua ​​​​ntawm sio2 yog ntau dua 98.6% thiab qhov loj tshaj ntawm al2o3 yog 0.8%, nrog rau lwm yam me me xws li mgo, cao, na2o, k2o, thiab lwm yam. Cov ntawv thov kub rau steel yog txog 1700 degree thiab rau cam khwb cia hlau yog mus txog 1550 degree.
 

Carbon ramming loj
Raws li qhov sib txawv rauv hom thiab cov qauv tsim sib txawv, cov pa roj carbon monoxide feem ntau yog siv rau hauv qhov sib txawv ntawm cov pa roj carbon cib thiab cov phaj sealing nyob rau hauv qab ntawm lub cub tawg, qhov sib txawv ntawm hearth carbon cib thiab phab ntsa cua txias, nrog rau qhov sib txawv ntawm lub cub tawg. leveling saum nruab nrab ntawm cov dej txias yeeb nkab ntawm lub cub tawg hauv qab thiab ntim ntawm phab ntsa txias. Txhua ntu yog xav tau qee qhov kev siv ntom thiab ntom, txhaws txhua lub ces kaum thiab ib qho kev sib txawv me me kom tau raws li cov kev xav tau ntawm cov hlau thiab roj av. Lub thermal conductivity ntawm carbon ramming loj cov ntaub ntawv yog qhov tseem ceeb raws li kev ua tau zoo ntawm cov pa roj carbon kub thiab cua txias phab ntsa ntawm lub qhov cub tawg, tsis cuam tshuam rau lub neej ntev ntawm lub qhov cub tawg, yog li ua kom cov khoom siv hluav taws xob zoo li qub.

Hoobkas tsim nyob rau hauv 1984, International lag luam department tsim nyob rau hauv 2010. Hoobkas nrog 10000 m2 cheeb tsam, 120 neeg ua hauj lwm nrog rau 20 kws engineers. CH REFRACTORIES yog cov chaw tsim khoom ntawm hluav taws kub, mortar, Pre-cam khwb cia, Preform, Rwb thaiv tsev cov khoom, Castable, Functional Products for Iron & Steel, Cement, Glass, Power & Petrochemical Industries. Ntxiv mus, CH REFRACTORIES tseem raug tsim thiab xa tawm cov cement refractory A600 A700 A900 CA70, Bauxite thiab lwm yam refractories raw khoom rau tag nrho lub ntiaj teb no.

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