DEP0048823DA - Method and device for tempering by annealing - Google Patents

Description

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d'i h 'rslts: ln ι Jlch. ·? 3 Vnrf ^ rr ^ a vcrrescbiasvas ,,. -part ■ · - ■

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r -.- sr * ··· .- -lic ¹ : .r.it Lieft ;; efdilt Lzt _i auf ejine ^ •• ip-r ^ ur j Li- II .: ⁰ e srhivrü., ground. edere ;; - i been the d-ie ,,. • 2 _ · "; 3 _ .; tic: - d '.- r ir—": -it Ia _i - ie. The> u £ si many ent-; i "" ihli-iioii eete: riexi'i- e Uu .l ^ uS ^ gi-.ibraekt -.fiaiö-.yan .'is' r

V. · ei: · "..it u? .R vst.Xöt ^r Ictsa r ic Iii in Le-.r jfcoiaasn, durc.f ^ ei-isehveerj - a r - alg? 3ess3« sa Ifeag «· ·· £. "··" / od ^ r IeeiJi rr%; r-riert, c.ii. -j iod sr arisas: made,

diored Viij ·, e \ e_eicelü ·; ird * ΰηά di <- "1 ^ 3 ^ Ώ ? ΐΐο» υ ^ ιητ; Ssr _> ; • υ- diidsxdeiiieri in d ervderiuige- ho ^ aeadea '· -C-is. ^ - ■ i ^ erKslb * / ' ^rervl V'

Certain limits must be maintained in such a way that they are not oxidized on '"' .. the castings are not. rend, .vjirfeen. . _. ■ · ".. ·· ■ · ''" '., "'. ·

In the practical application of this older process, instruments are required to determine the composition of the cast pieces that come into contact with each other. , · Measure and are equipped with automatic ar / ceiteiideh-'electric_.HLlfs-- ■ 'devices- which control valves, through which -. the air and / or the steam are introduced into the Pvegeneriermigssone of the furnace, vsexm ' the Siisanmens et solution, the Snt- ·' .. ■ carbonization gases in some ine m stages of the carbonization process · the intended ¹ Jlolera _i --Zen for the '"Composition exceeds-'<exceeds». ... · .. ···:

The present invention represents a- TUeit.erentvo-cklupg- of the "... mentioned method and consists in the fact that the two" " ! The excess gases arising from the reaction can be removed from the furnace and burned in a steam extraction system *, ... the steam seen by the gases, ent no :: me η yrird- and deirr.en slrkungsgnad a certain maximum value, not over-, steps, so that after the .plant. -the. ! The gases coming into contact with the castings are regenerated within certain limits in such a way that they decarbonize the castings, but do not oxidize them. . '· ■ .-.' .. ■ '. "·"' ':' -

The Iiei ¹ Ige of the admixed to the circulating gases. The preference for steam is determined by the fact that - the steam engine works with an efficiency that never significantly exceeds ITjs ■. ·. ·

3s can. uvU. be beneficial to -in the oven! forming on "feed gases other than the. steam bes a ti harvest small amount of air, the hydrogen uai Brought 'IE .'Ofen / located above sea-ase sin against the distempers au. degrading, and thereby reduce the Ixplos'ionsgefahr which otherwise" at the emptying of the furnace are formed male, such Luftsuführung is provided so i £ u £ the 'Ux rkuj2gsgrad the steam he se ugungs and age so Iieraegesetzt and the amount which are supplied in a Destimmten unit time of air bestiiast so that for the Regeneration of the required conditions at the end of the beating fulfilled, but not exceeded, »For this purpose, the air άο be controlled; that their Zixstrobnmenge'ge- ■ ring 5r is as dia susätsliehe SustrchmaeAge of steam would have to be at sugeführt LsendigLUiK of demBeriie, •. ⁱ Tenn to which ". Steam no air" is added.

Before the nozzles brought into the oven are blown, there can only be air in the oven; on the other hand, the gases in part ^ iron ^ the full picture in the; en Sntleeren of the furnace of .sauerstoff, Dc ~ mpf ₅ Lohlendioxyfi or consist of a mixture of one or more of these gases and / or Iiohlenomyd ".

In the ideiehnunj there is a Gldhofen sur execution of the procedure: j = mib ;. the drfinciunr in buckets & en. he is shown really en cut. ■ ·.;. ·. ·

The C 'fe -Λ contains a L._mmer ti, the walls of which are a', of the Jebrme- • insulating a. Building material and the 'a floor b of · similar worm material ^ iiibyeis ₅ the = BLs .. locking door' for the furnace serves, dm the base receiving the chamber. A n._ch Lmfen x ^ g ender Lsnd c is provided, which protrudes into a? "Around the bottom of the line, filled with sand = Linne d,

if- "the '; bottom closes off the furnace. The furnace proper is fixed, while the bottom is gasified.' can be old- to be introduced into the furnace castings, has e 'and then to V & rts berfegt again, run the Qien · -. - complete Likewise Eoaen fca.ni to, the treatment of Gubdfeücne be re entIeBrt aliuisenut unc...

Within the Iiaiinsr several heating elements are provided on the bands, as well as a fan =; which is on a gas-tight through the Euuiuisrde che guided wave h sit st.

In the Kanimerdeehe also let a ⁱ Jasacsugsrohr ine -a steam and / or hoof t ^! Core tube provided j. .Dasr-Sasab- - ·. · Jrurarohr i rüadec ui't ir -Inem Daaipfiessel te aus ,. .the . outside the furnace is arranged. "Jr is ait a ¥ aesersu- '. luiu -uni- 1 provided that the '.I ^ z ei-3t ^ d i.'n IiesseI automatically on a b ^ et i "urzen height halt. -

Dew Snfhin? Uiijsro-ir 3 ends in the iiahe of the Änsau§3ffjiurig or Ier nitte ij ventilator # in the oven una with -.- 'a a -Jiier = a Hnd ^tl et irh ^ lh 14e,; nc "uier .i -gels in the Eassel k «u

din-- Luftl = ItiUij η shimmers in eie iLietrit L -. = d Cfa lui ;; d e S ¹ -IIadab- SU _c . -.rohr: ^ i, Iure 'Ii: den uuc dieaeu Ilehr emerging. ! Read / write. iua_uluzt _ a ·; leads a he Im Hann. Vcu you reject a Luzti ultr_-j η , Cl ·> iu aen steam boiler u above the IVasaer ^ _i -Ieu-Jl-. liin.in .. ^ t. Di "-" iu ?? ö er lurch die Lelcun & eii η uiid η tr'Ine nc! In Iaf: ua iureh; ihh : .. e ο b: r. \ U ρ _rri "elt u-eri ^ u.

'The Vantilu.er hut -aaia · ibiidet irlurirJ - - uv-etri ^ c ^ -n. that

the Vf> m, ftT a through the ~ Itcdir % ζ its : e he leads steam and / or ·. Egg - ^ eflOirt *?. LiiiVan »rlitst **! State located GnSst'fccke ·. ' sees onydiersn,. you.: ü? Air and / or the DiDipf riit the. by ä'su 'fan in JL-I _cl Uf i-set zt he. Geyser. iroosLg 've.roiie-eli' vrird / u, ι svor sie α & τ dsn iluSstücke-in BeirUhruag 'kdiAZiZii. '· «... · ;. ■■■ ·

Ju.oii dam stacking the cast pieces on the floor and dear 'Aahsh · * n- of the floor i ::> di ^ OfonUifouro: oird air through the loit rrr; "ί · --- ' --ir -.' oboul - ioiroj. -ι 3 led, dor fan ■ in Drelouu _i .; versetot and those from the Gu £ stüch.en ¹ Oeatelionde Leo oh ic- ClUuo through dia 'Heiseiecsute £ heated.

in TO _c Jiui-. 6 .3- ioo.oro ^ -hd oio _öu. £ stiicka of the air located in the dsr tvaiUL 'jr a uneven, and with the hit begins a ^ eoition dpo- -i ..j the castings containeii Kohlslsteffs with' the o "uerstoif of • air," are that a Cieiaiach 'from .CO and CQ _n included and is et by .the Viritiicutor within oer Siumaer circulated 53s' are. in. ■ Ilase corresponds ·

Gioiohoeitli- the Sastiher- '·' ·· sehuü emerging in the Kuomer- exits through d «3 G-ε ^ bouoorohr i and v. Is at the outlet flow: 'Λ? -2 * .ζ hohreo, one not shown Zihid- '' f lainao sutohndef, so hau d_s passer jrhitat oird located in the boiler h and the resulting steam, which with the air caisehjfc., Leads through the riser pipe η, through ■ the conduits ¹ OOig -j 000 of the Aüsiuogöf opening of the fan in 'die'. Kaminer ^t a. entry. The air or Dampfluftgecaiseh pre- *: mixed oioh now iüib to this nail negotiated Cfm on gases _s "one Ii ¹ Il · the fact enohaltonen K.ohl .noxyds in '' carbon dioxide and regenerates d ^ at the? ans enlieihend between. -. the. .GuEstheken hiiidroreha.tröcaehd.-en gase se that they 'on the.

Gass parts decarburizing, from sr non-oxidizing whorls.

The following information represents the practically obtained results of experiments 6. ■ ^ x _t in which a bolt with castings üa-Se bujj .it = ° mcnf voi. 2twu 5 Rönnen "charged sur de" the so <call the Bodan tios furnace were stacked, dc.ß the G-Asel ■ · drone; in the ox_pel enter raid 2 "tables, they could hindurch- occur.

. cdi den _eech_chen dee -'fine and the Becinn dee Heiaens uirä- v_er Oi ~ u: jner cuxju die SF / Eigleituni " n, the Hersel k and 'das Rohx j a constant air flow in front of about 1 _f ^ m-Vk ζugefuiert.

Four otuMeii NaCN hr-xabeginn reached the kemperatur inside dee Ofene SOO ⁰ C and g ~ udgmde amounts of excess · combustible Oae e nennten used the entidudBt and sur Zrhitzung boiler began leaking through the Ahsugs- Xohr i.

'Zxiel hours later the coating reached a temperature of' IChO ⁰ C ₅ and hi 'due to the ^ e-ution ζ. Vis chen the in the. Oußsxücken contained Eoilenstdff and ■ the furnace gases ^ evoked Oasersugun _c . reached her ... axinum. Correspondingly- '''. Was fh-sefi- grddt also in the Dum? D ~ mpf; aenge heeu £ rt and the! Cammer sugei'üinrc. The CO ₀ content of the rabbit that was in contact with the outer parts was measured by means of an Orsatj-Aüpal * ates with Α · β> (stretching).

. • 13 .. dö and 70 hours after the start of the Teimoern was: 3 er - ■ · CG2 ~ - '^ - j .lt Se, li'h bau. 3,3, .h .i ^ ch 5 $ U-IUiiatunden was the J L "ame ι ,.? N Üiugsrohr ^ eifscht ₅ di a leheiiuaxg d ^ s Ofona finish, ui: Lrmtmaiihir _hg 51 mjilc and the heechiehiarrg 'within-

the furnace gelaasen cool to exclude it later to her '· - · know. '·· ■: .... ■ - ·· "

Au » clears geir_ded λλ ^. «5i.tno.iZ.ea erden, Lind the Susamsn ^ n sgusLiiij der i-egeiveri » rt er_, ndt the Gudetüeken in probation coninendeü gases adt χ er ts clir 3 it ends ' annoy, veräriderto AuSerdex relieves the JLe ng. e the through the IieaIrtioa ■ between these en - and the 'contained in the items ~ IlGlilenator' f srnsi; dmd ^ C -uij and de.aentepreehend the name α er ü c .-> Ii : ihLari j: · η. ^:;,; ded or c LO ae Ai 3 "ng sro Iir au str et en. The changes in the due ^ nnmsetung and the length of the · cUieme et meleu. Yes, heerd ^ nen never with progressive tempering, new changes occur ..; egg. dee j'irniu_pip: r. "dee r -rihmp £ generation ε -X -Iq; · .-. The i 1 Λ "d ee 'mep ediIdet and furnished

ui_d n'ird so ger "p ~ dt in L ■ ι k-iner '■' * <->it;. \ dlhrend d ° a T-nperns a" Teereenreiter a p-rti-mtm nocheten Tiirkungrgrad he et ntz.. rindet. three 1 rr ·> η .lie :. dedendung.-ij ends above: τΰτ-äen, cid those: i ~ \ hi.l_tl ". d; e eein.dd ^j rt nerden ; .Tdrd .en,

eokdede..n ~ ... 1 Lieieegere "ed: .. Idn _j -.1. d-nnnrdi, · d ^ p rinn a L ⁱ nid of the pe. . ·. ·· - · "en: r ~ t nid en η _.nn nt. .Ird. E ..p pi ₃

nu-dree nide., .d—. . d. ·: -: completely twisted. T ... enjen. dn? one bed: er Verln ".nun, Iee - e-tni.e :: de, Ldnnne η-en part-veiee

nn „1 e JtaHpf- r ζ - ng ur g, —il _g e lllerlr ^ -n e.ird. dn. "fir .Idrtaevendurte der d _r.:^ rem: ■ nj -enge mlege changed e; erdeu _s 'dnS' in the thy rotation n-,, de τ 'Jer nnnderi; closer and" der Hegene-htieriuigeeeue' 1 .? e_ serve ir- one ore c: -n neeiiger rterke ECNC n-

d -33. ir. sines special C-si. öt ^ ttfi). 3Biidsn CJei-ipsrna vor, d-eid your .didj st ellniir; der Liifidsn ₀ = regulated, the old ■ den. ■ · ur ^ tr exend Br · i ^ s b__ r; conceived and burned -.verdr-ii, scsiie. • "» Your end

deo vjeit = _- i_ d_rx ₀ _u.e; s de- J lur ims automatically by eie. the,

Vderased he tower 'dduf d. · ■ Drrr ^ f ere eur; irrr3 jjji & = js transferring ¹ Jiarseriir / en, di ^s infcli; ⁰ 3 he rides a fortecdr bit ends' -em? he η he re c other more gradually. J-niderrnven of the emerging from the furnace. "That surrendered.

The uirrusn s:; r si i - _; r Idri; fem inririr; ^ plant can, for the Siecke of .ärfiiicung de Sl _a ratio of filbiuaren fä'rae des at * c “. drec.de ier i _t 5_ .--- Brieruii ₀ · -er U- _A se 'desireies entering α en furnace (ir. Geerrrsr e s de : s χ ^ .eeiehlicd er-.engten .Crrapf _lf von dein a feil korc visier ei ', and ir., the dt 2 eng megs on location back ilieien eier -, d; 5i ^ rj ³ e - "= r den :: rm) su- the total calorific value of the deaixion dee ir . the dusistueken contained noblen- = · Fabrics zli d; n entdohluneeras en Biixat dose counter defines ... · "ground.".

the vorresedr :. ι vd.r :: rr: _ rgr-d one bestirs ^ .; en Daiapf ersausiings-- ^ rleree kciir call den Versdcnrre.- ¹ Surck "VBrääeruag the individual eden earth diners for ^ u.liBrur ^ sfnctors bssXihrrt 1st vein, this £ 'e \ sdivided e 7idrdnrri ; :: re -; n5 •" ^s Iniiia]. has been achieved, so re _e -elt ^ ied ede Anl ..rre fdr any deefang the loading, aehde'leruig des Ofine rix. duistdcken and for any · glidit ere. erat or automatic, j ·;

.de 'veretedt uicix, ά ^ ·: the small length. · not so much by itself ·: ..

'regulates, ud ' -Jd ·; ' dusunnonset sung over 3nxkohiungsgas e · in the course of each deis ^ errosesses r-ueru ..-! ■ -iek mifreent .erne.lten or dad-the confusion; · criminal of the. Volume- des 'ersengten JDeapfes and ..der A'-tightness of csn dussteile ent 3 Ggenen'.ce-'hl ^ nst of fs - full-

come, linear ti a ibt. Anyway , the system regulates itself within- ·. hill ^ ktisca *; nSg : nu easer limits in the sense that, the Sue cu -iiiienaec ξ an? the rait the GiiSstüeksn in contact koir-mecden Jcaoe in Allen Scadiau j - ⁱ O • liemperorases see within the areas en upright en healed;? ird, the necessary Sinrj _j na, a Sncnchlun .-. ' through _; . without as oxidation StutLiiudet, and Legriff "self-regulating" he me into the · jinssrlichen used £ equilateral; ird, is this - to understand the meaning ..

Cunit the same he eg slight characteristic of the process is more easily understandable , the occurring- ^ ntkohlungsreMktionen uud the iavreiligen _ -j .g? N of the in the Hegenefi er ucg a zone of the oxane -'baked lamefes and the thereby - arising gases''"- * - closer • concerns ^ cLt et ./erden.' h.

■ de already exhilarated , excited-hit at the beginning of the process a, iie ciction between dexa iE & 3n castings contained carbon and -the oxygen of the air present in the gas-tight or in the gas-tight furnace borrowed, at the GO and GOr; ' ■ · arises, CberschLissäg: e s-asp. the escape from the oven, • // grounded at the adudung the ex · δ ug sr ο br s i burned and ER- · ssugan XXi the Zessel 'ic Dsmpf. i-iimait one now. that the castings baked in the furnace are ^{heated to TOSG 0} O- and --- · ücii. of the total amount of steam that is generated in a certain stage of the 1 emper process , ·: Ί tcP / h of the Qfen- 'karamer a. fed through the inner tube j, let the following cooling reactions occur:;. ·· <?. ■; '■ ■

. ' (i) H ₉ O + G - * H ₂ + CO, (ii ) 2H ₂ 0 + G -> 2: i ₉ + CO ₂ . ■ · · "·

. The Verhiiltnls CO su CO, - which, mixed for the 5 nt Vice forming gas mixtures · "the Behandlun _s -Ssone -of Of ens - ertäais is cht, .dam:

it has the greatest possible capacity for feasting without it oxidizing on the parts of the foot. is etvia >: 1. Therefore the reaction (i) must prevail over the reaction (ii): in the same ratio 3: 1.

You must also have a certain kenge. · not flow decomposed with Daffigfes through the furnace, so that the. ■ entire Gasgeiaiaeh of H _2, CO, COO and Jl ₀ O · the Gleicbgewichtskoeffizientek the iüaas ⁱ Xgasreaktion correspond miss, the O at 105 ⁰ C for about O., 5 ■ . The following equations apply for this: • CO ₂ - + H ₂ ^ f CO + H ₂ O

and (CO ₀ ) »(H ₀ )

- = - = 0.5.

(CO). (H ₂ O ^

In order for these conditions to be met, the decarburization reactions Ii) and (ii) must, combined, proceed according to the following equation:

g "Jtd ₂ O. + 4C '-9 -5H _2. + 3C0 + CO ₂ + DH ₂ O....

Then from 1m 'steamers a gas mixture is produced, which is composed of 41.7 / * H _{9 3} 25 , ό CO, 6, QG ₀ and 25 / ° H ₂ O suaämmenset zt. · The weight of 'Ii ₂ ¹ Ond CO is 28-95 or 2865' keal / kr ⁵ ; · the. Combustion mL rme of 1.5 ii? TUs Gasgeihisches (without the sensible "poor) thus amounts to 1.5 x [" (0,417- 2895th) + (o, 2 §u · 2665) J - 2900 neal now üm 1 a ^'; steam at:. Ätmosphärenduck ■. produce from water of 10 ⁰ C au, 72. + 45 -5 = 507 kcal, are required, that is considerably less, -as the Yexhrennmugs- " Viiiii of the corresponding volume of the gas mixture produced, it is now stated that the is 'Da ^ pferseugungsanlage as' built ά * ί her Äirk: ungsgrad ₂ | ~ '. -100 = 17.5 ^ not whichever type 5igt so;' iru the Sntkohlungs ^ roseii self-regulating s °.

c-oilte, for example, the 1 n? Steam which is supplied to the furnace every hour 'aire, ixa behavesxJ.s- to-the ^ tightness of the casting- . \ -

Pieces of extracting carbon insufficient 3., Sq. ·. · _ ··. .erhöht 'itself, .the Rnt kohlmigs reaction (!') at the expense of the reaction (ii) and the percentage · Anxeil of H ₀ una CO. _ • which he singed gas mixture and volume daa 'this mixture .iiiKiat .su. As a result, increases the Gesas & verbremiungs ^ Slee of the gas mixture by the reaction .zm.schen coming up with the castings in Berllhruog gases and your iCohlenstof contained in the GuJiB tacken f ',, arises likewise, ·;'. , and this in turn increases the amount of steam generated and fed to the furnace, thereby compensating for the lack of steam mentioned-. ··. =. '·;

oolite, on the other hand, is the 1 nR steam that is drawn into the oven every hour. leads “vird, in relation to. there may be too much carbon contained in the cast iron , so. the reaction (ii) increased to the reaction costs · ■ (I) _i which the heat of combustion and '"the volume of the generated and flowing off from the ovens (rase reduced v / ill so that the iaenge the produced .in the boiler

Luid Daapfes supplied to the oven is reduced.

If we now let the ratios at the other limit - the favorable "exap er at ur one" , namely at 350 ° G , the result is that with this temperature the ratio of CO to CO _{2 is} in line with the results of the casting Gases for-the best decarburization without occurring oxidation about 2itf. is' and that of the water gas reaction GleicIigeudchtskoeffizient · .'bei about O., is located. 3 · ·

Show obedingungen at aolchen work - similar calculations, "that one mr steam 5. Gasgsmisch generated 1.4, which is ■ .et ^ -ά from 1Ό, 3'Λ CO _2, a 2,2> l GO?.... ₃ 43, H £ θ ₂ and 24, OII H ₉ O-zusaotnen Sets _f a stimulus value of about 1365 kcal / m - and an overall

Verbreimuiigwärm of 2760 teal possesses. The "ener Verliehe flrkungsgr Md steam he se ugungs plant is therefore f;

₀ . '100 = 13.4; i.

From these .Beraeiinungen one srkennt 'da3 "The HS Elaste sul'ässri efficiency-of Daiiipf ores ugungs plant in which it acutely g s for the ^l JiemperproseS candidate temperature range of 350 -..' · ITOO ⁰ C approximately the same , and that a system which is constructed in such a 'dai 3ie aieaalß works with an efficiency of over 17 .ViSfriitlieii / "beyond. see in this temperature range pr & KTI cii ULiareichend itself .regelt".

But you have to pay attention. that the above calculated efficiencies of 17, 5:> ft at 1050 ° C and 13.5 $ at 850 ° C, the theoretically highest Wirkuhgsgrade are with which the steamer generation system can work without being in - oxidising 'Cemperofen BadinjLmgen. evokes. In practice, this is how the system is called. control DJL Sisvbei slightly lower response τ- degrees works, go au to ensure .da £ such oxidising 'conditions can not ^ hen entst. - '.

Once the desired en- working conditions Versiieke -'--: 3ind been determined, the procedure requires the use of special equipment or · Vorriehtimgen to change the "close to air and / ocer I / uup £, the regeneration of me in! Oven existing d ^ se is used, superfluous.3s- used - here a lot- \

Combustion ^., '' · .... ■

more G & arms composed of the '^ fen exiting gases _p • If in addition, the furnace and / or the steam he 3 2 ugungs plant at any stage of the I ^1; mperprosess it stop -jiirksao. su work- Z3 ~ a, sc 'will be such a verse-ag? n trotsd-'s ohie Sefahran , that the process goes intestine, automatically and without standstill

that adverse effects on the Beacialcirtms of the oven "· '· ■"''"'.·"'' - ■ '. ; ■ '

can arise. Because a failure or a part7 ; eiees ·· Vsi -Scgen ir g node ines part of the Dampfarzsugungsanlage 'or the lixftsuf Uiir do g hWt a = Unterxeebtuog or a reduction in the furnace cu £ sföhrtsn steam and / or air-

senge sur! episode. Heis_.iel3weise .mrd a clogged container. _of: i flues or SufLüirurn 3lait'ttng 3 au a change d r ■ You lead ^ f ^ uf uhrUn _il?. Sbenao rsird a 211- · mature. "I Srloscden the IFIuuite at the outlet of the flue or -sin Vsru ag -η: he, '3 he aufUhr ungsalt t el 1" into Unt-he Iarechun ₀ Daapfzufdlrrttng sur result have and finally Now a verse called? a. the Foundation Management for the "Ver" br ^o Uutuj ^ air 31-: ^ tdr: e u3r surrounded flame and thereby lead to a ν er changed 'thin delivery.

Claims (1)

7 · '"', - - ■ **, '-JP'a t -e rf t ' -aj n"'"s -, - p \ ir- O - Jire,'''",';-;. _h ', Α ^ Λ "· j ^; r-' ^: J 1) Method guE ^ gh-lJ-, ■, α.L> ^l Ijer i% ^ klcljfeg ^^ uS ^^ . Stliclce in a-g.asdi ohtaa exjlaf ^ ^ s ^ n ^ ^^^ llcÄ c-MiaJ .: ':, furnace' di3r is 'original''filledLuft.-' having, on a _ _/:; '. xeiapexat.ur sv / isciicu 35.0. and 11 QO ^h C heated, uerden, urd "die '· (rase, jdie hei> der - reaction: -ftef ■'% ptt '''' ^ t ^ ßmrT € ''mWV"?, ^u ' . * castings contained Kc hl snst'af £ ento't = Iien ₁ In-JJmliauf - ", - & scracht and at, 3 one place, -an'äer ei-? -Pit"den; GuB - "., '- ■ · ■ ·. ·. ■■, do not come into contact iroamfin, -by adding '",' -einer .Lbseinssssnen äanja Luffe : d ^ - / & ä ^^^ - t ^» ^ zhc ^^ T ^ .; ... ·., * «* ·» Again. ^ Irnsan geisaG ^ t ... isreEäSiE ^ üi ^ te £ 5 «i : n" · Ρ »ϋ · dessin. Coals contained in gases are unchecked in coal diQnjd and the sus ssmsxiset sröcg 'the old - cast -' stüclren, in., Berilbr.tu3g. iroamendeii.,. Gaae ,. : iimeEi ^ li, .. ^ es-iytissit - <= i ^ ;; ..-- limits "£ o.-aiif right he holds βώ .rri. ± * d, .that ... they -on the GuSwh.j *.: Stueke, v decarburizing ^ but ~ c - · -''-.''- "'·' ■ '- V ·" - j.- -: -' · '' .. '· " -; irfcen. Üadurek ^ ekennz-Ieiinet ₃ dsiE ^; the - bei? ner ^ äeä ^ löa: J '' - ■ entet S-Iiend · ;;! I ^j Lfcsra c nils s ig an "GasV 'aus- the oven' ■ Λ% ΐΓέ23βη7 · '· uiki in -iner £ _.2ipf-: rsir-c ^ j-idc ^. _; burned -.veriegenj dar- "der 'den G - s? u balnuaiö hurrying 2 <& 2 ± _v ~ £) ai & 4n (M2 && ^ tfLeä- ■■ VikL · - '^ ginen "" beatiinmu en maximum value, :.; .. -'"'.."'■' .- ■ .J · d he a nyirkuiis; s ^ rad ^^ Tiaat over- ^ re honor It et _t -en da2 after the I ^ ^ rireet üen 'Ier - ^ ir -J into the proceedings. eieli, c1cdureh 'telbctr ^ ilt _j Λ a2 the circulation indan,. r.it din Gnistlekeij in ϊ · ε- ^; "• 'J r-dhrnür, emptying gases ir ^ err ^ alt /'b'eetisiaten''& trihzW £ \ 2oT re ^ sn ^ ri ert ·; -; 3r dl; η, d _ΐ c ia Ii -j · QiZst Üelce 'decarburization: -n _; "- afc sr' nicin: 01:70! ar 3 _i. . .- ;. ' ■■ '· .'- , "'·" • ■ ...- W '-' 7errk - !. ren .n ^ eh -.jn ^^ ru ^ h 1 ₅ ^ durc1. ..g ^ ennac-ielzn-sf, * "lc.C _: -; äii Loiiijf3r.i3 -> \, un: ^ _ nl ^ s ainG 3inen ^ irlin: r_j £ r; .tä works _5j · ■. ·. ···: ··· - ·, -. · .. '··· ·' ■ ·. '· ■■;.: ·. · .- '-'-.- · * ·· • "' - ■ vi ^'i', '^' V '· äer'.v / äirrsEd of' Lhhip /erns.heiuesfalls. 1? ^^ es ^ tl ^ cC 'v exceeds »'. ,. "· - ·: * =. '·, Ii »« ■ - ,) WrfaIireii H _ci Cb / ir ^ prach 1,. thereby g% k3ims- $ icBnet, · ..djsfi / ' V " er', Virbri'ü ¹ -rad 'of the' Daapf sxgenerations through ^Γν ; V the ^; · • 'SJiasratLg ·' 'dar hen ^ e. the .den saispd'ea ⁱ Sfesi. emerging SaatpIi .siigefdlrrt en Varbrenaimgäluft! is regulated. ·. ■ *; ". · 4.) Procedure: 3. after one of the vord-diendeh claims, because V 'V; - 'through, ^ .elrsnrjslichxet, d_iJ des. des! Oven.' supplied en ·. Dkipf - ·. '· • "· ~ * ',', ··· ■", '' · '· am '3a.de des ^ ntkoIili ^ iesprosesses' · Liift beigercis cht ^ ird ₁ ,''·'. ···. • · "- ■ whose -Ikis- is less, 'than. The ensatliche' B & iapf senge, ' ^v · "·. Which are supplied iiüSte ,,, Jjenii den Dasipf hot air with- '1Ρ ** Ί PP' ^: * 'ΡΡΡΡΐ ^: Ρ: ίΡ'Ρ'ΡΡ ■' Ρ: - *. "· ''. · .: '' .ν · '·' l31 \ r: Sp ^; " dl5Ä ^ .added'tdirde. '_ ■' .V · ^/"'..'.-: '' _ ^{','. 'Λ .;;} 5.) Acicg3 SVU · ^ ώ-s-fllhrux. ™ des Verr / f shr'ens hach /% ispViKh ^ i-5 _s ·. · '· 'characterized by the fact that £' .ale • - ^ iiage .. a 'gas-tight-' -. "■ · '. .J - C of weseatIiehen ie, gas-tight Of s' (a-) · ^au.fw.eiat: in Ssemv • '' Einüostsiia a fan (g). voi-ges rhen-xst .'- der die -ia ' J ■ Furnace included. Gases in circulation a.et st , ι Tieitarhin 'on off - ".' · ' ·. . ■ ■ ·; ν-; ·. . ■ ^·; = -. · - the'Ofen her to the leading Pmsugerohr Ci}, the su-one / · '"■ /' Steam he se i ^ * uivo to! ^ E (h), and. A Daapf zuü'hlriir ^ s-- .; - '' .. 'line' (j) from the Dasrpf e'rsaugungaanlage • hotnnend 'in-y: the 'Kahe' of the fan enters the. 'Oven “'; · '■ · ·'. .. · '· · " 6. ·} Glinge according to Arisprueh 5, thus gaheiinaeichnet, ■ the · "a. · • with Hegeleiirrichfungaa ( q ) Versshene LuftaufülirüaT ^ si'eitung- ' Γ "''.Γ.: .. ·. - .. ■ -,; -, · .-. - · ■ · hj.- .; ·. ''..'- Γ -.-.-. Ρ- - "" (ra) p voi'g.eaehen let the in. die- A ^ htrittBöf ihiung / d? s Ib -. '· / SlSSifS '-T.) Aula? © uac a / .uis ρ rue Ja ^ 5 and 6,' · α '»φχτ4ΐ2' '£ β3ςε ^ '• da £ a in 3 mix i.egel3iirric-hxiLr .gea (p) - Verehene air- "" · "· --'- -' ■ ~ -.,. . ' - line (s) in the ^ Danpfraura der, Daaiferaeug ^ dragsa'jlagp - '. Ci :)' , 'eihtitdidet. '·, ■■' -. ■ "',' ■" · '·'. '", ·' .- /.,