Refractories T1 Theory

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    MKLOKMMROKL EGPMROGIZ RMCRGJPDR_ EGPMROGIZ PHMDR_

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    Rmcrgjtdry Egtmrogis>

    7. Oktrd`ujtodk

    Phm substgkjms dr jdepduk`s whojh jgk wothstgk` holh

    tmepmrgturm `geglm dr spdoiglm grm akdwk gs rmcrgjtdry

    egtmrogi. Lmkmrgiiy thm egtmrogis hgvokl sdctmkokl pdokt

    grduk` 7=866J grm tmrem` gs rmcrgjtdry egtmrogi.

    2. Jigssocojgtodk dc Rmcrgjtdry Egtmrogi

    Phmrm grm thrmm `occmrmkt emthd`s dc jigssocojgtodk.

    7. Jigssocojgtodk dk thm bgsos dc

    tmepmrgturm

    (g) Idw rmcrgjtdry egtmrogi hgvokl VJM imss thmk

    7=866J

    (b) Holh rmcrgjtdry egtmrogi hgvokl VJM crde 73666J

    td 7?666J

    (j) Zupmr rmcrgjtdry egtmrogi hgvokl VJM edrm thgk

    26666J

    VJM os Vyrdemtroj Jdkm Mquovgimkt gk` os thm gboioty td

    wothstgk` mxpdsurm td mimvgtm` tmepmrgturm wothdut

    uk`mrldokl gpprmjogbim mcdregtodk.

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    2. Jigssocojgtodk dk thm bgsos dc

    jhmeojgi rmsostgkjm

    (g) Gjo` rmcrgjtdry egtmrogi whojh hgs rmsostgkjm

    tdwgr`s gjo`.

    m.l. soiojg, giueokoue soiojgtms.

    (b) Bgsms rmcrgjtdry egtmrogi whojh hgs rmsostgkjm

    tdwgr`s bgsoj jdepduk`s m.l. JgD, ElD, 2:,`dideotm,

    bguxotm mtj.(j) Kmutrgi rmcrgjtdry egtmrogi whojh hgs rmsostgkjm

    tdwgr`s gjo`s gs wmii gs bgsms. m.l. jhrdeotm, lrgphotm,

    zorjdkog

    :. Jigssocojgtodk dk thm bgsos dcjhmeojgi jdepdsotodk

    Phos `mpmk`s updk thm gjtugi jhmeojgi jdepduk` thgt

    grm usm` whoim prmpgrokl rmcrgjtdry egtmrogi, m.l. Rgw

    egtmrogi (egok) cdr rmcrgjtdry.

    (g) Zoiojg

    2 (b) Giueokoue soiojgtm

    2:,2

    (j) Giueokg - 2: (`) Eglkmsog ElD

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    (m)@dideotm>JgEl(JD:)2 (c) Ioem JgD

    (l) ^orjdkog 2 (h) Lrgphotm

    0. Lmkmrgi Vrdjm`urm dc Egkucgjturokl

    Rmcrgjtdry Egtmrogi

    Brojas>

    Phm vgrodus stmps okvdivm` ok thm prmpgrgtodk dc `occmrmkt

    typms dc rmcrgjtdry egtmrogis grm o`mktojgi woth sdem jhgklm

    ok thm corokl tmepmrgturm. Phm stmps okvdivm` ok thm

    prmpgrgtodk dc rmcrgjtdry brojas grm gs cdiidws>

    7. Zmimjtodk dc rgw egtmrogi>

    Phm rgw egtmrogi os dbtgokm` crde thm eokms whojh os

    gkgiyzm` cdr ots jdepdsotodk gk` thm egtmrogi whojh hgs

    rmquorm` jdepdsotodk os tgamk cdr curthmr prdjmss.

    2. Jrushokl, lrok`okl gk` pdw`mrokl

    Oc thm rgw egtmrogi os ok thm cdre dc stdkm, thmk ot os

    jdkvmrtm` oktd segii pomjms woth thm hmip dc ngw jrushmrs.

    Curthmr, thm segii pomjms grm pgssm` thrdulh lrok`mrs td

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    dbtgok pdw`mr. Phm cokm pdw`mr os prd`ujm` by usokl bgii

    eoiis ok whojh thm oepgjt dc thm ordk bgii lovms cokm pdw`mr.

    :. Zomvokl>

    G somvm, dr soctmr, os g `mvojm cdr smpgrgtokl wgktm`

    mimemkts crde ukwgktm` egtmrogi, typojgiiy usokl g wdvmk

    sjrmmk sujh gs g emsh dr kmt.Phm pdw`mr crde thm bgii

    eoii os pgssm` dvmr thm somvm td hgvm ukocdre sozm dc thm

    rgw egtmrogi. Lmkmrgiiy, vobrgtdry dr tubuigr somvms grm

    usm`. Phm lrgok sozm dc rgw egtmrogi os oepdrtgkt bmjgusm

    jdepgjtkmss gk` pdrdsoty dc thm brojas `mpmk` updk thm

    pgrtojim sozm dc rgw egtmrogi.

    G bgii eoii,thm `dttm` bduk`gry rdtgtms

    gk` hgs igrlm ordk bgiis okso`m whojh curthmr jrush thm

    egtmrogi

    G somvm

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    0. Eoxokl gk` bimk`okl bgtjhms

    Phm vgrodus rgw egtmrogis grm wmolhm` gjjdr`okl td bgtjh

    sozm. Phmk, ot os eoxm` ok eoxmr gctmr g``okl succojomktgedukt egtmrogi dc wgtmr (updk 26%) gk` bok`mrs.

    (Bok`mrs- lue, jmiiuidsm, edigssms, jigy mtj.) Sgrodus

    typms dc eoxmrs grm gvgoigbim. Phm goe dc eoxokl os td

    prd`ujm hdedlmkmdus bd`y. Phm prdpmr eoxokl woii lovm

    bmttmr rmsuits. Phm eoxokl toem `mpmk`s updk ok`ovo`ugi

    prd`ujts. @occmrmkt bgtjhms grm glgok bimk` tdlmthmr gk`

    g`nust thm rolht jdepdsotodk dc cokgi brojas.

    =. Cgbrojgtodk gk` edui`okl> Phm goe dc

    edui`okl rmcrgjtdry bgtjhms os td prd`ujm brojas, bidjas,

    toims dr spmjogi shgpm whojh jgk bm hgk`m`, pigjm` cdr corokl

    gk` subsmqumktiy prdjmssm` td yomi` g pmregkmkt cuiiy

    stgbim grtojim. Phm gbdvm bgtjhms jdktgok lmkmrgiiy 0.22%

    dc wgtmr. Sgrodus egjhokms grm gvgoigbim cdr edui`okl

    purpdsm rolht crde hgk` edui`okl td gutdegtoj edui`okl

    egjhokms. Phm prokjopgi okvdivm` ok thm edui`okl os thmprmssokl dc coxm` wmolht dc rmcrgjtdry egtmrogi ok g coxm`

    vdiuem (edui`) td gjquorm kmjmssgry shgpm.

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    3. @ryokl

    Phm `ryokl os jgrrom` dut by mxpdsokl thm edui`m` brojas

    oktd thm suk dr by usokl dvmk gt 706d

    J. Phm `ryokl osjgrrom` dut td rmedvm sdem edosturm, sd thgt thm brojas

    jgk bmjdem hgr`.

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