SCIENTIFIC ABSTRACT SABIYEV, M.P. - SABLIN, V.I.

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Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R001446620004-4
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RIF
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S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
August 23, 2000
Sequence Number: 
4
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Publication Date: 
December 31, 1967
Content Type: 
SCIENTIFIC ABSTRACT
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SOV/133-59-9-8/31 'An Investigation.of.th'e Operation of a 250.Ton.Open Hearth Furnace Fired with Coke Oven Gas increasing the velocity.of the gas-air mixture from the dog house.to 100 to 120 m/sec. The pressure in the gas vertical flue,increased,to the 'atmospheric pressure and at maximum thermal loads to 10 mm H20- The temperature of the upper checkers of,gas,regenerators was maintained at 3.200 to JL250*C- The consumption of oil remained the same as on firing with mixed gas. ,During the melting period, the flame was covering the bath satisfactorily but-during the refining period at low thermal loads the length .of the flame.was insufficient. In this case, Ian improvement can be obtained by decreasing the.coefficient of excess air to 0.9 to'l.O. Changes in the operating indices of.the furnace on transfer.to firing with hot.coke oven gas aregiven in tables 1 and 2. The preliminary results.obtained indicated that,in respect of productivity and fuel consumption,the furnace operation was satisfactory. Further investigation of the problem of heating open hearth furnacew with a Card 2/3 hot low pressure gas of a, high calorific value and, in 18.3200 78180 SOV/133-6o73-5/24 AUTHORS: Leykin, I. M. (Candidate,of Technical.Sciences), Shidkov, V. ~A. (Engineers) TITLE. Production:of Low.Alloy Steels 19G.and 14KhGS Without Reduction~by Silicon in the:Furna ce PERIODICAL: Stall, 1960, Nr 3, pp.2167219 (USSR) ABSTRACT: This is a~repbrt.concerning test melts conducted.by the personnel of the Central Scientific Research Institute- of Ferr,ous,Metallurgy.,(TsNIIChM):and, the Alchevskiy Metallurgical Plant (Alchevskiy metallurgicheskiy zavod in Voroshilovsk). Alseries-of test melts of , 14KhGS and 19G steels were made in the,furnaces with chromium magnesite roofj,fired.by mixed gas.. The furnaces.worked, on-scrap--,ore process with twostage drawing off of slag. 13.5 ton ingots-were produced by.bottom pouring; 14.5 ton ingotsby direct'pou.-qing. The reduction took place in the,ladle. 'The,change'of chemical content oftested Card 1/3 ~steels in the course.of test pouring was as follows: Production of Low Alloy Steels 19G and 78180 l4KhGS Without Reduction by Silicon in the Furnace 14KhGS: 0,~ 10-0. i4% C; 0.85-1.00% Mn; ~0-53-0,66% steel , S; o.44-o.54% Cr. Steel 'Si; 0, 01T-0 - 03C% P; 0.026-0-039% , 19G-.. o.16-o.20% C; o.94-1~.o3% Mn; 0.27-0-34% si; .0.021-0 o-j4% P;,0.025-0--d4X& S. The authors arrived at the foliowing conclusions:.(l) The investigated-method of reduction of steels 14KhGS:and.19G (without intro-. ducing silicon~into the furnace) permits a noticeable decrease in theconsumption of manganese-silicon and a~ decrease of,expenses for reducer., (2) With'the increase of the degree of utilization of manganese and silicon (introduced with ferroalloys the specific consumption ~ of man anese a educed:by w s r .8% and that.of silicon by re d uction of metal in the furfiace by 37%. The ferromanganese produces only steel,with reduced phospho - rus content (in the test melts the average phosphorus content was 30% less than in regular melts). (4) During.r--duction of steel in the ladle, a uniform dis- tribution of.elements over the whole volume of metal taices.place,, accompanied by,~some decrease in hydrogen Card 2/3 content. Aspecial feeder isirecommended for Production of, LOvi AlloySteels 19G and 7818o 14KhGS Without . Reduction.by Silicon in SOV/133-60-3-D/24 the Furnace introductiQn of reducers into.the ladle. '.This feeder gives means to, control.the,amount of~admixtures fed . into the ladle per.unit.time. (5) Due~to the.cooling effect of sizeable admixtures.of ferroalloysi the metal before tapp should.have aA ture 10 0 C higher Gempera , al. than usu 6)~ The'total content of.nonmetallic~. l ~inclusions-in test steels:proved-to be lower-than in regul ar melts. 7) The.impact:strength of.sheet s made from test melts of 14KhGS and 19G steels at room tempera- - tureand at reduced test etemperatures, as well as after is not.lower than that of aging., sheets made:from . regular,melts., -,There are' 4 - t ables. ASSOCIATION: TsNIIChM and!,Aldhevskiy-Metallurgical~Plant (TsNIIChM i Alchevski-y.metallurgicheskiy~zavod) Card 3/3 S/028/60/000/010/010/020 B013/Bo6) AUTHORS: Sokolovskiy~ P. I Samaryanova, A. M., Sabiyev, M. P Timofeyevj D. I. TITLE- Heat Treatment of Low Carbon Steel PERIODICAM Standartizatsiy'a, 1960, No.~10, PP. 41-44 TEXT: The experiencegained in.al,number-.of metallurgical works in the heat treatment of rimming and,semi-quie .t steel of the type CT-3, (Si - 3)r