EP1198435B1 - Exotherme speisermasse - Google Patents
Exotherme speisermasse Download PDFInfo
- Publication number
- EP1198435B1 EP1198435B1 EP00935084A EP00935084A EP1198435B1 EP 1198435 B1 EP1198435 B1 EP 1198435B1 EP 00935084 A EP00935084 A EP 00935084A EP 00935084 A EP00935084 A EP 00935084A EP 1198435 B1 EP1198435 B1 EP 1198435B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- feeder
- feeder according
- magnesium
- reactive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
-
- 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
- B22D7/104—Hot tops therefor from exothermic material only
Definitions
- the invention relates to an exothermic feed mass containing aluminum and magnesium, at least one oxidizing agent, a temperature-resistant filler containing SiO 2 and an alkali silicate as a binder.
- the aluminum is used for induction an exothermic reaction with the oxidizing agent
- the known feeder masses also being reactive Contain fluorine compound with the passivating oxide skin reacts on the aluminum powder, so that this with the Oxidizing agents can react.
- Such feeder mass is for example in DE-C-25 32 745.
- it contains Aluminum powder, a alumina, unspecified, and an organic (Phenolic, urea or furan resin, starch) or an inorganic Binder (silica sol, colloidal aluminum oxide) and an oxidizing agent for the fine metal.
- alkali silicates as binders is not mentioned.
- fluoride catalysts Fluorine compounds such as cryolite, fluorspar or sodium silicofluoride.
- the proportion of the fluorine compound can be 0.1 to 20 % By weight; according to the examples, the proportion of Fluoride compound between 1.0 and 2.0%.
- DE-A-29 23 393 mentions i.a. exothermic feed masses with Aluminum powder, cryolite, iron oxide, sand and aluminum oxide fibers. The latter should be preserved as fibers.
- DE-C-28 31 505 describes an exothermic feed mass with an Al 2 O 3 additive, which is, however, to be regarded as an inert filler.
- Alkali silicates are not used, but the addition of fluoride-containing flux (cryolite) is always necessary. Magnesium is not used.
- the DD-60 121 describes an exothermic feed mass on the Base of aluminum with the addition of water glass as well as a flux containing fluoride. Alumina is not mentioned.
- feeder mass also contains magnesium or an aluminum-magnesium alloy.
- the temperature of the magnesium is determined by the Oxide skin on the aluminum overcomes passivity, so that also the aluminum reacts with the oxidizing agent, whereby overall a higher temperature is reached. in this connection undesirable reactions take place in the feeder mass.
- the hollow fire manifests itself in large cavities in the wall of the feeder, through channels with the molten iron in the Feeder is connected.
- By penetrating the molten Iron losses in the cavity result in iron losses.
- this iron is very difficult from the converted feed mass to separate, so that a reprocessing of the iron is practically impossible.
- the object underlying the present invention is So in reducing the so-called "hollow fire”.
- the invention thus relates to an exothermic feed mass of the type defined at the outset, which contains about 2.5 to 20% by weight of a reactive aluminum oxide with a specific surface area of at least about 0.5 m 2 / g and an average particle diameter (d 50 ) contains about 0.5 to 15 microns and is practically free of fluoride fluxes.
- the reactive alumina generally contains up to about 5% OH groups. If the proportion of OH groups is relatively low reactivity is also due to a very small particle size of the alumina particles reached.
- the exothermic feeder mass according to the invention shows Reaction only small voids that do not go through with each other Channels are connected so that no iron from the feeder core can penetrate.
- the mode of action of the reactive aluminum oxide can be imagined in such a way that it reacts with the alkali compounds present, so that they can no longer react with the filler containing SiO 2 with vitrification and cavity formation. If there is no longer a hollow fire, the strength of the feed mass also increases during and after the reaction has ended.
- the reactive aluminum oxide in the feeder mass according to the invention preferably has a specific surface area of approximately 1 to 10 m 2 / g.
- the composition of the feed mass according to the invention is as follows: aluminum 20-35% by weight, preferably 20-23% by weight magnesium 1.5-10% by weight, preferably 2-7% by weight oxidant 8-20% by weight, preferably 10-15% by weight Reactive aluminum oxide 4 - 18% by weight, preferably 8 - 13% by weight alkali 8-22% by weight, preferably 10-13% by weight or 17-23% by weight SiO 2 content. filler 58.5-17% by weight, preferably 43-29% by weight
- alkali silicate depend on the filler. For fillers with a lower bulk density (e.g. hollow microspheres) is the preferred amount of alkali silicate higher.
- the filler containing SiO S preferably has an SiO 2 content of at least 50% by weight, in particular more than 60% by weight.
- Quartz sand and / or aluminum silicates can be used as temperature-resistant fillers containing SiO 2 , in the latter case preferably hollow microspheres, ground chamotte and / or mineral fibers are used.
- the reactive aluminum oxide preferably has the following properties: Al 2 O 3 content> 90% Content of OH groups: up to 5% (depending on the particle diameter) Specific surface area (BET) about 1 to 10 m 2 / g Average particle diameter (d 50 ): 0.5 to 15 ⁇ m.
- the invention also relates to a method for reduction the hollow fire in substantially fluoride-free feed masses; the process is characterized in that a feed mass as defined above is used.
- a reaction of the in the crowd containing magnesium with the molten iron in the vapor phase can be considered excluded because of magnesium has an extremely low vapor pressure and the feed mass Air intakes between the grains of the fine-grained mineral contains, so that the vaporous magnesium immediately with the Atmospheric oxygen would react.
- the explanation for the by the effect achievable by the invention is probably that the feed mass contains impurities (e.g. sulfur), which without the magnesium in the feeder mass into the molten Diffuse iron and in this way with the very low Amounts of the spheroidal additive (e.g. magnesium) in the molten iron can react, so that when solidifying not spheroidal graphite, but lamellar graphite forms. It is believed that the magnesium in the feeder mass reacts with the impurities contained therein, so that they no longer diffuse into the molten iron can.
- the magnesium apparently has a "scanvenger" function.
- Alkali metals or other alkaline earth metals as magnesium, e.g. Calcium, are not as well suited because they oxidize easily in the air.
- the invention thus also relates to a method for prevention of graphite degeneracy in the feeder top area and in the area reaching into the casting; This method is characterized in that one as above defined feeder mass used.
- the components are mixed well, and the resultant
- the mass is poured into a dish.
- the riser shape is gassed with carbon dioxide; the water glass reacts under Formation of colloidal silica and sodium carbonate with the carbon dioxide. and solidifies the feeder. Then the Mass dried to constant weight.
- the feeder is placed on the cast model and molded with it, whereupon molten iron is poured into the mold.
- the feed mass ignites with an increase in temperature, the sodium carbonate obtained from the water glass and the reduction product of the sodium nitrate preferably reacting with the reactive Al 2 O 3 , so that the hollow fire occurring during the reaction with the sand is reduced.
- the feeder is removed. After the reaction, the feeder shows on average a large number of small cavities which are not connected to one another by channels and which therefore also contain no iron (FIG. 1).
- Example 1 The ingredients are mixed together as in Example 1, brought into a food pan, gassed with carbon dioxide and dried. The casting is also as in Example 1 carried out. The section of the converted feeder mass shows essentially the same pore structure as the feeder of Example 1.
- Example 2 The further processing was carried out as in Example 1.
- the obtained Feeder section of the feeder wall see Figure 2 shows a strong hollow fire with a after the reaction large void volume in the middle, that through channels with smaller Cavities connected up to the area of the molten iron are enough. All cavities are frozen Iron filled. Stick when smashing the feeder remains of the converted feeder mass on the iron pieces.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Continuous Casting (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- Bakery Products And Manufacturing Methods Therefor (AREA)
- Cookers (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Description
Aluminium | 20 - 35 Gew.-%, vorzugsweise 20 - 23 Gew.-% |
Magnesium | 1,5 - 10 Gew.-%, vorzugsweise 2 - 7 Gew.-% |
Oxidationsmittel | 8 - 20 Gew.-%, vorzugsweise 10 - 15 Gew.-% |
Reaktives Aluminiumoxid | 4 - 18 Gew.-%, vorzugsweise 8 - 13 Gew.-% |
Alkalisilicat | 8 - 22 Gew.-%, vorzugsweise 10 - 13 Gew.-% bzw. 17 - 23 Gew.-% |
SiO2-halt. Füllstoff | 58,5 - 17 Gew.-%, vorzugsw. 43 - 29 Gew.-% |
Al2O3-Gehalt > 90%
Gehalt an OH-Gruppen: bis zu 5 % (in Abhängigkeit vom Teilchendurchmesser)
Spezifische Oberfläche (BET) etwa 1 bis 10 m2/g
Mittlerer Teilchendurchmesser (d50) : 0,5 bis 15 µm.
Rezeptur: | |
Aluminium (0,063 - 0,5 mm Körnung) | 20 Gew.-% |
Oxidationsmittel Natriumnitrat: | 15 Gew.-% |
Magnesium (0,1 - 1 mm Körnung) | 4,5 Gew.-% |
Reaktives Al2O3: (Al2O3-Gehalt 99 %, BET-Oberfläche <6 m2/g, d50 4 - 8 µm |
9 Gew.-% |
SiO2-Sand (0,1 - 0,5 mm Körnung) | 40,5 Gew.-% |
Wasserglas (43 - 45 %-ige Lösung) | 11 Gew.-% |
Rezeptur: | |
Aluminium (wie nach Beispiel 1) | 20 Gew.-% |
Natriumnitrat (wie nach Beispiel 1) | 10 Gew.-% |
Magnesium (wie nach Beispiel 1 | 4 Gew.-% |
Reaktives Al2O3 (wie nach Beispiel 1) | 12,5 Gew.-% |
SiO2-Mikrohohlkugeln (0 - 0,5 mm Körnung) Schüttgewicht 350 cm3/g, SiO2-Gehalt 55 - 65 %) |
36,5 Gew.-% |
Wasserglas (wie nach Beispiel 1) | 17 Gew.-% |
Claims (10)
- Exotherme Speisermasse, enthaltend Aluminium und Magnesium, mindestens ein Oxidationsmittel, einen SiO2-haltigen Füllstoff und ein Alkalisilicat als Bindemittel, dadurch gekennzeichnet, daß sie etwa 2,5 bis 20 Gew.-% eines reaktiven Aluminiumoxids mit einer spezifischen Oberfläche von mindestens etwa 0,5 m2/g und einem mittleren Teilchendurchmesser (d50) von etwa 0,5 bis 8 µm enthält und daß sie praktisch frei von fluoridhaltigen Flußmitteln ist.
- Speisermasse nach Anspruch 1, dadurch gekennzeichnet, daß das reaktive Aluminiumoxid eine spezifische Oberfläche von etwa 1 bis 10 m2/g hat.
- Speisermasse nach Anspruch 1 oder 2, gekennzeichnet durch die Zusammensetzung:Aluminium: 20 - 35 Gew.-%, vorzugsweise 22 - 28 Gew.-%Magnesium: 1,5 - 10 Gew.-%, vorzugsweise 2 - 7 Gew.-%,Oxidationsmittel 8 - 20 Gew.-%, vorzugsweise 10 - 15 Gew.-%Reaktives Aluminiumoxid 4 - 18 Gew.-%., vorzugsweise 8 - 13 Gew.-%Alkalisilicat: 8 - 22 Gew.-%, vorzugsweise 10 - 13 Gew.-% bzw. 17 - 22 Gew.-%temperaturbeständiger SiO2-haltiger Füllstoff: 58,5 bis 17 Gew.-%, vorzugsweise 43 - 29 Gew.-%
- Speisermasse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Oxidationsmittel Eisenoxid und/oder ein Alkalinitrat darstellt.
- Speisermasse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der temperaturbeständige SiO2-haltige Füllstoff einen SiO2-Gehalt von mindestens 50 Gew.-%, vorzugsweise von mehr als 60 Gew.-% hat.
- Speisermasse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß als temperaturbeständige SiO2-haltige Füllstoffe Quarzsand und/oder Aluminiumsilicate verwendet werden.
- Speisermasse nach Ansprüche 6, dadurch gekennzeichnet, daß als temperaturbeständige SiO2-haltige Füllstoffe Mikrohohlkugeln, gemahlene Schamotte, und/oder mineralische Fasern verwendet werden.
- Speisermasse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das reaktive Aluminiumoxid folgende Eigenschaften hat:
Al2O3-Gehalt > 90%
Gehalt an OH-Gruppen: bis zu 5 %
Spezifische Oberfläche (BET): 1 bis 10 m2/g
Mittlerer Teilchendurchmesser (d50) : 0,5 - 15 µm - Verfahren zur Verminderung des Hohlbrandes bei im wesentlichen fluoridfreien Speisermassen, dadurch gekennzeichnet, daß man eine Speisermasse nach einem der Ansprüche 1 bis 8 verwendet.
- Verfahren zur Verhinderung von Graphitentartungen im Speiseransatzbereich und in dem in das Gußstück hineinreichenden Bereich, dadurch gekennzeichnet, daß man eine Speisermasse nach einem der Ansprüche 1 bis 8 verwendet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925167 | 1999-06-01 | ||
DE19925167A DE19925167A1 (de) | 1999-06-01 | 1999-06-01 | Exotherme Speisermasse |
PCT/EP2000/004597 WO2000073236A2 (de) | 1999-06-01 | 2000-05-20 | Exotherme speisermasse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1198435A2 EP1198435A2 (de) | 2002-04-24 |
EP1198435B1 true EP1198435B1 (de) | 2003-01-15 |
Family
ID=7909940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00935084A Expired - Lifetime EP1198435B1 (de) | 1999-06-01 | 2000-05-20 | Exotherme speisermasse |
Country Status (7)
Country | Link |
---|---|
US (1) | US6972059B1 (de) |
EP (1) | EP1198435B1 (de) |
JP (1) | JP2003500221A (de) |
AT (1) | ATE231112T1 (de) |
DE (2) | DE19925167A1 (de) |
ES (1) | ES2192178T3 (de) |
WO (1) | WO2000073236A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010057464A3 (de) * | 2008-11-20 | 2010-10-21 | AS Lüngen GmbH | Formstoffmischung und speiser für den aluminiumguss |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20115140U1 (de) | 2000-11-30 | 2002-01-31 | AS Lüngen GmbH & Co. KG, 56170 Bendorf | Speiser mit einem rohrähnlichen Körper |
DE10059481B4 (de) * | 2000-11-30 | 2012-02-23 | AS Lüngen GmbH | Speiser mit einem rohrähnlichen Körper |
CN1305601C (zh) * | 2002-09-09 | 2007-03-21 | 艾布里亚阿施兰德化学公司 | 套筒、其制造方法和用于生产所述套筒的混合物 |
CA2498674A1 (en) * | 2002-09-11 | 2004-07-22 | Erico International Corporation | Heat-producing material and device |
DE102004042535B4 (de) * | 2004-09-02 | 2019-05-29 | Ask Chemicals Gmbh | Formstoffmischung zur Herstellung von Gießformen für die Metallverarbeitung, Verfahren und Verwendung |
DE102005011644A1 (de) * | 2005-03-14 | 2006-09-21 | AS Lüngen GmbH & Co. KG | Exotherme und isolierende Speisereinsätze mit hoher Gasdurchlässigkeit |
US20070017955A1 (en) * | 2005-07-25 | 2007-01-25 | Siracki Glenn T | Weld metal material apparatus and method |
DE102006061876A1 (de) | 2006-12-28 | 2008-07-03 | Ashland-Südchemie-Kernfest GmbH | Kohlenhydrathaltige Formstoffmischung |
HUE029506T2 (en) | 2006-10-19 | 2017-02-28 | Ask Chemicals Gmbh | Carbohydrate-containing molding compound |
DE102006049379A1 (de) | 2006-10-19 | 2008-04-24 | Ashland-Südchemie-Kernfest GmbH | Phosphorhaltige Formstoffmischung zur Herstellung von Giessformen für die Metallverarbeitung |
DE102007008149A1 (de) | 2007-02-19 | 2008-08-21 | Ashland-Südchemie-Kernfest GmbH | Thermische Regenerierung von Gießereisand |
DE102007012660B4 (de) | 2007-03-16 | 2009-09-24 | Chemex Gmbh | Kern-Hülle-Partikel zur Verwendung als Füllstoff für Speisermassen |
DE102007051850A1 (de) | 2007-10-30 | 2009-05-07 | Ashland-Südchemie-Kernfest GmbH | Formstoffmischung mit verbesserter Fliessfähigkeit |
DE202010007015U1 (de) | 2010-05-20 | 2010-08-26 | AS Lüngen GmbH | Magnetischer Speiser |
DE102011114626A1 (de) | 2011-09-30 | 2013-04-04 | Ask Chemicals Gmbh | Beschichtungsmassen für anorganische Giessformen und Kerne und deren Verwendung |
DE102011115025A1 (de) | 2011-10-07 | 2013-04-11 | Ask Chemicals Gmbh | Beschichtungsmassen für anorganische Gießformen und Kerne enthaltend Salze und deren Verwendung |
DE102011115024A1 (de) | 2011-10-07 | 2013-04-11 | Ask Chemicals Gmbh | Beschichtungsmassen für anorganische Gießformen und Kerne umfassend Ameisensäureester und deren Verwendung |
CN103551515B (zh) * | 2013-11-22 | 2015-05-13 | 哈尔滨理工大学 | 铸造用发热保温冒口及其制备方法 |
RU2588974C2 (ru) * | 2014-11-18 | 2016-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный институт путей сообщения" (МИИТ) | Комплексная экзотермическая смесь |
DE102015223008A1 (de) | 2015-11-21 | 2017-05-24 | H2K Minerals Gmbh | Form, Verfahren zu ihrer Herstellung und Verwendung |
CN105665615B (zh) | 2016-02-05 | 2018-10-02 | 济南圣泉集团股份有限公司 | 一种铸造水玻璃用固化剂及其制备方法和用途 |
DE102017107655A1 (de) | 2017-01-04 | 2018-07-05 | HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung | Verwendung einer Säure enthaltenden Schlichtezusammensetzung in der Gießereiindustrie |
DE102017107657A1 (de) | 2017-01-04 | 2018-07-05 | HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung | Schlichtezusammensetzung, umfassend organische Esterverbindungen und partikuläres, amorphes Siliziumdioxid, zur Verwendung in der Gießereiindustrie |
DE102017107658A1 (de) | 2017-01-04 | 2018-07-05 | HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung | Schlichtezusammensetzung für die Gießereiindustrie, enthaltend partikuläres, amorphes Siliziumdioxid und Säure |
DE102017107531A1 (de) | 2017-04-07 | 2018-10-11 | HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung | Verfahren zur Herstellung von Gießformen, Kernen und daraus regenerierten Formgrundstoffen |
DE102018200607A1 (de) | 2018-01-15 | 2019-07-18 | Reinsicht Gmbh | Verfahren zur Erzeugung von für die Herstellung von Faserverbundkörpern oder Gussteilen aus Metall oder Kunststoff geeigneten Formen und Kernen, bei dem Verfahren einsetzbare Formgrundstoffe und Binder sowie gemäß dem Verfahren hergestellte Formen und Kerne |
DE102020127603A1 (de) | 2020-10-20 | 2022-04-21 | Kurtz Gmbh | Verfahren und Vorrichtung zum Gießen eines metallenen Gussteils mittels eines Sandkernes |
AU2022256785A1 (en) | 2021-04-16 | 2023-10-26 | Foseco International Limited | Refractory article and composition |
DE202022105722U1 (de) | 2022-10-11 | 2022-11-04 | Ask Chemicals Gmbh | Speiser mit beweglicher Tülle |
DE202023100381U1 (de) | 2023-01-27 | 2024-01-30 | Ask Chemicals Gmbh | Speiser mit Deckel |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2500097A (en) * | 1947-10-14 | 1950-03-07 | Peter J Soffel | Exothermic composition for controlling the fluidity of castings |
US2798818A (en) * | 1954-03-15 | 1957-07-09 | Exomet | Moldable exothermic compositions |
US3162558A (en) * | 1963-04-25 | 1964-12-22 | Exomet | Moldable exothermic composition |
FR1442499A (fr) * | 1965-05-06 | 1966-06-17 | Doittau Produits Metallurg | Perfectionnement aux garnissages des lingotières d'aciérie ou des moules de fonderie |
US3326273A (en) * | 1965-12-28 | 1967-06-20 | Foseco Int | Exothermic hot top |
DD60121A1 (de) * | 1967-03-28 | 1968-02-05 | ||
GB1373924A (en) * | 1970-11-12 | 1974-11-13 | Exomet | Metallurgical hot topping compositions |
US3953219A (en) * | 1971-07-10 | 1976-04-27 | Aikoh Co., Ltd. | Powdery composition for heat retention of feeder head |
JPS4931535A (de) * | 1972-07-22 | 1974-03-22 | ||
US3982929A (en) * | 1973-02-09 | 1976-09-28 | Esm, Inc. | Composition for a fluidizing flux in the production of iron and steel |
US4081168A (en) * | 1974-09-12 | 1978-03-28 | Foseco Trading, A.G. | Hot top lining slabs and sleeves |
US4008109A (en) | 1975-07-01 | 1977-02-15 | Chemincon Incorporated | Shaped heat insulating articles |
DE2532745C2 (de) * | 1975-07-22 | 1985-09-26 | Chemineon Inc.,, Southfield, Mich. | Wärmeisolierende Auskleidung für Speiser |
US4201606A (en) * | 1977-07-19 | 1980-05-06 | Foseco Trading Ag. | Refractory exothermic heating insulating articles |
US4880483A (en) * | 1981-07-08 | 1989-11-14 | Alloy Surfaces Company, Inc. | Pyrophoric composition |
DE2923393C2 (de) * | 1979-06-08 | 1984-01-26 | Foseco International Ltd., Birmingham | Verfahren zur Herstellung von Gießformen mit Speisern |
JPS56500681A (de) | 1979-06-14 | 1981-05-21 | ||
DE3418137C2 (de) * | 1984-05-16 | 1986-10-02 | Mannesmann Rexroth GmbH, 8770 Lohr | Speiser für ein insbesondere aus Gußeisen herzustellendes Gußstück |
DE3445209A1 (de) * | 1984-12-12 | 1986-06-12 | Gebrüder Lüngen GmbH & Co KG, 4006 Erkrath | Aus exothermer heizmasse hergestellter speiser fuer gussstuecke |
GB8512514D0 (en) * | 1985-05-17 | 1985-06-19 | Foseco Int | Molten metal casting & feeder sleeves |
US5180759A (en) * | 1986-05-01 | 1993-01-19 | Foseco International Limited | Exothermic compositions |
GB8610739D0 (en) * | 1986-05-01 | 1986-06-04 | Foseco Int | Exothermic compositions |
US5370370A (en) * | 1993-02-19 | 1994-12-06 | Vesuvius Crucible Company | Liner for submerged entry nozzle |
GB9308363D0 (en) * | 1993-04-22 | 1993-06-09 | Foseco Int | Refractory compositions for use in the casting of metals |
US6133340A (en) * | 1996-03-25 | 2000-10-17 | Ashland Inc. | Sleeves, their preparation, and use |
-
1999
- 1999-06-01 DE DE19925167A patent/DE19925167A1/de not_active Withdrawn
-
2000
- 2000-05-20 US US10/009,537 patent/US6972059B1/en not_active Expired - Lifetime
- 2000-05-20 AT AT00935084T patent/ATE231112T1/de not_active IP Right Cessation
- 2000-05-20 WO PCT/EP2000/004597 patent/WO2000073236A2/de active IP Right Grant
- 2000-05-20 JP JP2000621306A patent/JP2003500221A/ja active Pending
- 2000-05-20 DE DE50001111T patent/DE50001111D1/de not_active Expired - Lifetime
- 2000-05-20 ES ES00935084T patent/ES2192178T3/es not_active Expired - Lifetime
- 2000-05-20 EP EP00935084A patent/EP1198435B1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010057464A3 (de) * | 2008-11-20 | 2010-10-21 | AS Lüngen GmbH | Formstoffmischung und speiser für den aluminiumguss |
Also Published As
Publication number | Publication date |
---|---|
DE50001111D1 (en) | 2003-02-20 |
JP2003500221A (ja) | 2003-01-07 |
WO2000073236A2 (de) | 2000-12-07 |
DE19925167A1 (de) | 2000-12-14 |
WO2000073236A3 (de) | 2001-03-29 |
US6972059B1 (en) | 2005-12-06 |
ATE231112T1 (de) | 2003-02-15 |
ES2192178T3 (es) | 2003-10-01 |
EP1198435A2 (de) | 2002-04-24 |
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