WO2018002096A1 - Verwendung eines wärmedämmenden formkörpers zur isolation von metallschmelzen gegenüber der atmosphäre oder einem metallurgischen gefäss - Google Patents
Verwendung eines wärmedämmenden formkörpers zur isolation von metallschmelzen gegenüber der atmosphäre oder einem metallurgischen gefäss Download PDFInfo
- Publication number
- WO2018002096A1 WO2018002096A1 PCT/EP2017/065921 EP2017065921W WO2018002096A1 WO 2018002096 A1 WO2018002096 A1 WO 2018002096A1 EP 2017065921 W EP2017065921 W EP 2017065921W WO 2018002096 A1 WO2018002096 A1 WO 2018002096A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- use according
- binder
- din
- shaped body
- molded body
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/106—Shielding the molten jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
- B22D27/06—Heating the top discard of ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
- B22D7/10—Hot tops therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/10—Monolithic linings; Supports therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B2014/0843—Lining or casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
- F27B2014/104—Crucible linings
Definitions
- the covering means forms a protective and thermal barrier coating. On the one hand, it shields the molten metal bath from atmospheric gases in order to avoid unwanted chemical reactions of the molten metal. On the other hand, it serves for insulation or thermal insulation against the atmosphere. Thus, the covering ensures good surface quality.
- the object of the present invention is to provide a heat-insulating shaped body, in particular a heat-insulating plate, which is used for the thermal insulation of molten metals, in particular molten steel, against the surrounding atmosphere and / or a metallurgical see vessel, in particular in the production of steel, is used, wherein the molding should be simple and inexpensive to produce, to ensure good thermal insulation and should be neither harmful to health or the environment.
- Figure 2 Schematically and greatly simplified a mold for the rising block casting before the start of the casting process with a cover plate
- the unfired shaped body 1 used in accordance with the invention has a binder matrix 2 of at least one set binder in which aggregate grains 3 of biogenic silica, preferably rice husk ash, are embedded or incorporated.
- the aggregate grains 3 are distributed in the binder matrix 2.
- the binder is a permanent binder.
- a permanent binder is a binder which hardens below the temperature for the ceramic fire, but does not volatilize on exposure to heat, in particular in a 0 2 atmosphere, but converts and has a binding matrix with ceramic or other bond forms. Permanent binders thus ensure the cohesion of the unfired shaped body 1 at room temperature and in use under temperature load, in particular in a 0 2 atmosphere.
- the dry ingredients are mixed.
- the dry constituents are the biogenic silica and, if appropriate, the other additives and, if appropriate, at least one permanent binder, if this is in dry form.
- the troublesome water or other liquid solvent to dissolve or disperse or activate the binder.
- at least one permanent binder can also be present in already dissolved or dispersed form and added to the dry mixture of the other constituents in liquid form.
- Residual oxides 0.5 to 3.0 1, 0 to 2.0
- the bulk density in accordance with DIN EN 1097-3 (06/1998) of the biogenic silica used, in particular the rice husk ash, is preferably 0.05 to 0.5 g / cm 3 , preferably 0.1 to 0.4 g / cm 3 .
- the shaped body 1 used according to the invention then preferably has a dry bulk density p 0 of 0.3 to 1.5 g / cm 3 , preferably 0.5 to 1.3 g / cm 3 according to DIN EN 1094-4 (09/1995) ,
- the molded body 1 preferably has a porosity of 60 to 90%, preferably from 70 to 80% in accordance with DIN EN 1094-4 (09/1995).
- the molded body 1 preferably has the following thermal conductivities according to DIN EN 993-15 (07/2005):
- a block casting apparatus 4 for the increasing ingot casting of metal, in particular steel, usually comprises a sub-frame 5 with a pouring channel 6 for feeding the molten metal, in particular the steel.
- the ingot casting device 4 has a tubular mold 7 for receiving a metal bath 8 of molten metal.
- the mold 7 has a lower and an upper, open mold end 7a, b.
- the upper mold end 7b forms a mold head 9 of the mold 7.
- the molded body 1 is used as a cover plate 10 for covering the upper, open Kokillenendes 7b.
- the cover plate 10 is placed on the mold head 9 before the block casting (FIG. 2) begins.
- the application to the mold 7 thus takes place without direct contact with the metal 8.
- the metal bath 8 is thus indirectly by the cover 10, ie without direct contact, thermally insulated.
- a casting powder bag 1 1 filled with casting powder is fixed in such a manner that it hangs down from the cover plate 10, into the mold 7.
- the cover plate 10 preferably has a continuous from one to the other plate surface, central recess 12.
- the molded body 1 can be used in an advantageous manner as a cover plate for covering or for the isolation of the free metal bath surface 8a in another open-topped metallurgical vessel.
- the molded body 1 can be used as a cover plate 19 for a casting distributor 20 (FIGS. 5 and 6), preferably a continuous casting distributor (tundish).
- the finished mixture was compacted for 30 s with a frequency of 50 Hz and an amplitude of 0.8 mm.
- the basis weight of the applied weight was 0.005 N / mm 2 .
- the plate was demolded and dried at 150 ° C for 12 h in a drying oven on a plate and allowed to set.
- the plate had the following dimensions: 500 x 500 x 300 mm 3 .
- the produced board had the following properties: Dry bulk density p 0 (DIN EN 1094-4 (09/1995)) 0.73 g / cm 3
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Ceramic Products (AREA)
- Mold Materials And Core Materials (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112018072660-5A BR112018072660B1 (pt) | 2016-06-30 | 2017-06-27 | Uso de um corpo moldado com isolamento térmico para o isolamento de metais fundidos em relação à atmosfera ou um reservatório metalúrgico |
CN201780038653.0A CN109475929B (zh) | 2016-06-30 | 2017-06-27 | 隔离金属熔体与大气环境或冶金炉的阻热模压衬垫的用途 |
EP17733463.8A EP3478431A1 (de) | 2016-06-30 | 2017-06-27 | Verwendung eines wärmedämmenden formkörpers zur isolation von metallschmelzen gegenüber der atmosphäre oder einem metallurgischen gefäss |
US16/313,242 US11150022B2 (en) | 2016-06-30 | 2017-06-27 | Use of a heat insulating molded body for isolation of molten metal against the atmosphere or against a metallurgical vessel |
RU2018138003A RU2727488C1 (ru) | 2016-06-30 | 2017-06-27 | Применение теплоизолирующего формованного элемента для изоляции металлических расплавов от атмосферы или для изоляции металлургической емкости |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016112044.8 | 2016-06-30 | ||
DE102016112044.8A DE102016112044B4 (de) | 2016-06-30 | 2016-06-30 | Verwendung einer wärmedämmenden Platte zur Isolation von Metallschmelzen gegenüber der Atmosphäre oder einem metallurgischen Gefäß |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018002096A1 true WO2018002096A1 (de) | 2018-01-04 |
Family
ID=59227755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/065921 WO2018002096A1 (de) | 2016-06-30 | 2017-06-27 | Verwendung eines wärmedämmenden formkörpers zur isolation von metallschmelzen gegenüber der atmosphäre oder einem metallurgischen gefäss |
Country Status (7)
Country | Link |
---|---|
US (1) | US11150022B2 (de) |
EP (1) | EP3478431A1 (de) |
CN (1) | CN109475929B (de) |
BR (1) | BR112018072660B1 (de) |
DE (1) | DE102016112044B4 (de) |
RU (1) | RU2727488C1 (de) |
WO (1) | WO2018002096A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021203371A1 (de) | 2021-04-01 | 2022-10-06 | Refratechnik Holding Gmbh | Versatz zur Herstellung eines feuerfesten, ungebrannten Formkörpers, derartiger Formkörper, Verfahren zu dessen Herstellung, sowie Zustellung eines Ofens und Ofen |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57202950A (en) * | 1981-06-06 | 1982-12-13 | Nippon Steel Corp | Mold additive for continuous casting |
GB2112374A (en) * | 1981-12-24 | 1983-07-20 | Foseco Trading Ag | Molten metal handling vessels |
DE19728368C1 (de) | 1997-07-03 | 1999-03-04 | Georg Heller | Isolierende Abdeckmittel für Stahl |
GB2347143A (en) * | 1999-02-24 | 2000-08-30 | Brightcross Manufacturing Limi | Refractory composition |
DE19731653C2 (de) | 1997-07-23 | 2001-10-31 | Council Of Scient & Ind Res Ne | Verfahren zur Herstellung von Kügelchen oder Pellets aus Reisschalenasche sowie Kügelchen oder Pellets aus Reisschalenasche |
EP1728571A1 (de) * | 2005-06-04 | 2006-12-06 | Chemex GmbH | Isolierender Speiser und Verfahren zu dessen Herstellung |
DE102013000527A1 (de) | 2013-01-15 | 2014-07-17 | Hans-Peter Noack | Verfahren zur Abdeckung einer Metallschmelze und Abdeckmaterial |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1281684A (en) * | 1968-07-04 | 1972-07-12 | Foseco Trading Ag | Heat insulators for use in the casting of molten metal |
DK142906B (da) * | 1977-11-03 | 1981-02-23 | Skamol Skarrehage Molerverk As | Let, ildfast isolerende pladeformet materiale. |
MC1284A1 (fr) | 1979-06-11 | 1980-07-22 | Daussan & Co | Produit isolant granulaire et son procede de preparation |
DE2948162A1 (de) | 1979-11-29 | 1981-06-04 | Foseco Trading AG, Chur, Graubünden | Geformte, feuerfeste, waermeisolierende gegenstaende |
FR2496696A1 (fr) | 1980-12-19 | 1982-06-25 | Daussan & Co | Composition pulverulente et epurante pour recipient metallurgique |
SU1397159A1 (ru) * | 1986-01-21 | 1988-06-15 | Краматорский Научно-Исследовательский И Проектно-Технологический Институт Машиностроения | Устройство дл защиты зеркала металла в кристаллизаторе при непрерывной разливке |
DE3816715A1 (de) | 1988-05-17 | 1989-11-30 | Alois Hehl | Granulatartige masse |
GB9005677D0 (en) | 1990-03-13 | 1990-05-09 | Foseco Int | Pouring molten metal |
DE19809590B4 (de) * | 1998-03-06 | 2004-11-18 | Viessmann Werke Gmbh & Co Kg | Feuerfestformkörper |
DE10105620A1 (de) | 2001-02-08 | 2002-09-12 | Thyssenkrupp Stahl Ag | Verfahren und Abdeckplatte zur Erzeugung einer Schlackeschicht auf der Oberfläche einer Metallschmelze |
AU2003217450A1 (en) * | 2003-03-26 | 2004-10-18 | Jajanya Datta Panda | A composition for the manufacture of silica insulating refractory brick |
RU2369463C1 (ru) * | 2008-05-22 | 2009-10-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Теплоизолирующая смесь |
US20110073270A1 (en) | 2008-05-28 | 2011-03-31 | Ashland-Südchemie-Kernfest GmbH | Coating compositions for casting moulds and cores for avoiding maculate surfaces |
DE102008047601B3 (de) | 2008-09-18 | 2010-04-15 | Dwl-Wolf Gmbh | Blockhaube |
CN102343425A (zh) | 2010-08-03 | 2012-02-08 | 安徽瑞丝保温材料有限公司 | 一种颗粒状稻壳灰保温剂 |
DE102011079692A1 (de) * | 2011-07-22 | 2013-01-24 | Chemex Gmbh | Speiser und formbare Zusammensetzungen zu deren Herstellung |
DE102011115025A1 (de) | 2011-10-07 | 2013-04-11 | Ask Chemicals Gmbh | Beschichtungsmassen für anorganische Gießformen und Kerne enthaltend Salze und deren Verwendung |
-
2016
- 2016-06-30 DE DE102016112044.8A patent/DE102016112044B4/de active Active
-
2017
- 2017-06-27 RU RU2018138003A patent/RU2727488C1/ru active
- 2017-06-27 WO PCT/EP2017/065921 patent/WO2018002096A1/de unknown
- 2017-06-27 CN CN201780038653.0A patent/CN109475929B/zh active Active
- 2017-06-27 EP EP17733463.8A patent/EP3478431A1/de active Pending
- 2017-06-27 BR BR112018072660-5A patent/BR112018072660B1/pt active IP Right Grant
- 2017-06-27 US US16/313,242 patent/US11150022B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57202950A (en) * | 1981-06-06 | 1982-12-13 | Nippon Steel Corp | Mold additive for continuous casting |
GB2112374A (en) * | 1981-12-24 | 1983-07-20 | Foseco Trading Ag | Molten metal handling vessels |
DE19728368C1 (de) | 1997-07-03 | 1999-03-04 | Georg Heller | Isolierende Abdeckmittel für Stahl |
DE19731653C2 (de) | 1997-07-23 | 2001-10-31 | Council Of Scient & Ind Res Ne | Verfahren zur Herstellung von Kügelchen oder Pellets aus Reisschalenasche sowie Kügelchen oder Pellets aus Reisschalenasche |
GB2347143A (en) * | 1999-02-24 | 2000-08-30 | Brightcross Manufacturing Limi | Refractory composition |
EP1728571A1 (de) * | 2005-06-04 | 2006-12-06 | Chemex GmbH | Isolierender Speiser und Verfahren zu dessen Herstellung |
DE102013000527A1 (de) | 2013-01-15 | 2014-07-17 | Hans-Peter Noack | Verfahren zur Abdeckung einer Metallschmelze und Abdeckmaterial |
Also Published As
Publication number | Publication date |
---|---|
DE102016112044A1 (de) | 2018-01-04 |
DE102016112044B4 (de) | 2019-01-03 |
US11150022B2 (en) | 2021-10-19 |
BR112018072660A2 (pt) | 2019-02-19 |
BR112018072660B1 (pt) | 2022-10-04 |
CN109475929A (zh) | 2019-03-15 |
RU2727488C1 (ru) | 2020-07-21 |
EP3478431A1 (de) | 2019-05-08 |
CN109475929B (zh) | 2021-10-26 |
US20190154337A1 (en) | 2019-05-23 |
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