EP1036610B1 - Moulage de précision et en châssis dans des aérogels organiques ou en carbone - Google Patents
Moulage de précision et en châssis dans des aérogels organiques ou en carbone Download PDFInfo
- Publication number
- EP1036610B1 EP1036610B1 EP00104214A EP00104214A EP1036610B1 EP 1036610 B1 EP1036610 B1 EP 1036610B1 EP 00104214 A EP00104214 A EP 00104214A EP 00104214 A EP00104214 A EP 00104214A EP 1036610 B1 EP1036610 B1 EP 1036610B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wax
- gel
- sol
- temperature
- plastic
- 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
Links
- 239000004964 aerogel Substances 0.000 title claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 7
- 238000005266 casting Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 12
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005495 investment casting Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000000197 pyrolysis Methods 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 5
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 5
- 239000004793 Polystyrene Substances 0.000 claims abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 3
- 229920002223 polystyrene Polymers 0.000 claims abstract description 3
- 239000010453 quartz Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract 4
- 239000002685 polymerization catalyst Substances 0.000 claims abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract 2
- 239000004033 plastic Substances 0.000 claims description 28
- 229920003023 plastic Polymers 0.000 claims description 28
- 239000012778 molding material Substances 0.000 claims description 14
- 239000004966 Carbon aerogel Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 8
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 7
- 238000005058 metal casting Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 239000011256 inorganic filler Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000012766 organic filler Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims 1
- 239000000908 ammonium hydroxide Substances 0.000 claims 1
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 239000001099 ammonium carbonate Substances 0.000 abstract 1
- 235000012501 ammonium carbonate Nutrition 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract 1
- 239000000499 gel Substances 0.000 description 20
- 239000000243 solution Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000465 moulding Methods 0.000 description 6
- 238000001879 gelation Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 229960001755 resorcinol Drugs 0.000 description 4
- 238000000352 supercritical drying Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000003980 solgel method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000006887 Ullmann reaction Methods 0.000 description 1
- SXSVTGQIXJXKJR-UHFFFAOYSA-N [Mg].[Ti] Chemical compound [Mg].[Ti] SXSVTGQIXJXKJR-UHFFFAOYSA-N 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011240 wet gel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
-
- 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
Definitions
- the invention relates to a molding material for the fine and casting of metals or metal alloys comprising plastic and / or carbon aerogels and a process for the preparation of corresponding molding materials.
- Aerogels are highly porous, open-pored oxidic solids, which are usually via sol-gel processes of metal alkoxides by polymerization, polycondensation to gels and subsequent supercritical drying are obtained.
- plastics via sol-gel processes gelled and by supercritical drying in a highly porous organic Transform solid state. Pyrolysis of such plastic aerogels under inert gas or in vacuum at temperatures above 1000 ° C, this converts into carbon aerogels around.
- the oxidic aerogels have plastic and carbon aerogels extremely low effective thermal conductivities (order of magnitude some mW / K / m) and are considerably lighter.
- the airgel mold may consist of silica aerogels or not working under reducing atmosphere of carbon aerogels.
- a Forming material for the fine and casting of metals or metal alloys comprising highly porous, open-pored plastic and / or carbon aerogels, available by sol-gel polymerization of organic plastic materials optionally followed by partial or complete pyrolysis of the obtained Kunststoffaerogels.
- the molding material according to the invention is particularly suitable for use in lost wax casting processes and does not have, as in the prior art in oxidic Gels, applied in several steps.
- the airgel forms produced according to the invention are particularly suitable for the casting of aluminum alloys (with the mold practically unheated must be because there is no heat dissipation by themselves). This increases the economy, because energy costs can be reduced. Magnesium- and titanium alloys also do not react with carbon, so that these carbon aerogels also for these alloys under inert gas or Offer vacuum as molding material.
- a particular advantage of the molding materials according to the invention is that the Sol-gel formation at room temperature, that is, especially at temperatures completed within a few hours below the pour point of the wax can be.
- a supercritical drying, as with the purely inorganic Gels are not required. Nevertheless, it is possible to increase the pore size in the micrometer range adjust. For drying in the supercritical temperature range In addition, pore sizes in the nanometer range possible.
- the molding materials according to the invention can also be inorganic or organic filler materials. These are essentially Under solidification conditions inert inert materials understood.
- inorganic Filler materials are, for example, selected from alumina, titania and / or quartz, each in an amount of 5 to 30% by volume. used can be. Fillers in the context of the present invention further include Fiber materials containing a fiber reinforcement with organic, inorganic or allow carbon and / or SiC fibers at about equal volume fractions.
- thermoplastic or thermosetting plastic particles for example polystyrene and / or organic (polyacrylonitrile) fibers.
- thermoplastic or thermosetting plastic particles for example polystyrene and / or organic (polyacrylonitrile) fibers.
- the molding material Plastic aerogels based on resorcinol / formaldehyde used in the suitable composition and suitable content of basic catalyst at temperatures between 20 and 50 ° C without supercritical drying in one microstructured plastic airgel can be transferred.
- the composition of the sol-gel polymerization is adjustable so that, for example First, a highly viscous liquid is formed, which is on a wax mold can be applied. This is also possible in several operations, so that the layer thickness adapted to the needs of the applications in the foundry can be.
- the temperature of the conversion of the solution into a plastic airgel must be Melting point of the wax can be adjusted. After conversion into one Plastic airgel, the wax can be melted out and at the same time Conversion into a carbon airgel takes place under exclusion of air.
- the gelation temperature Dependent from the composition of the starting solution, the gelation temperature, The density of the resulting porous body can be used to produce molds both as a plastic and as a carbon airgel, on a micrometer scale are superficially smooth and form sharp contours.
- the pyrolysis time is determined by the thickness the mold shell; for example, with a wall thickness of 1 cm, the time is less than 24 hours, usually 10 hours.
- the Kunststoffstöffaerogel was in a cold muffle furnace brought in.
- the oven was heated slowly (3 hours) to 1050 ° C, whereby continuous nitrogen (argon or another inert gas is possible analogously) was blown to avoid oxidation.
- the temperature of 1050 ° C was maintained for 24 hours.
Claims (10)
- Matière moulée pour la coulée de précision et le moulage en châssis de métaux ou d'alliages métalliques, qui comprend des aérogels de matière plastique et/ou de carbone, très poreux, à pores ouverts, que l'on peut obtenir par polymérisation sol-gel de matières synthétiques organiques, suivie éventuellement d'une pyrolyse partielle ou complète de l'aérogel de matière plastique obtenue.
- Matière moulée selon la revendication 1, qui contient des charges minérales ou organiques.
- Matière moulée selon la revendication 2, caractérisée en ce que les charges minérales sont choisies parmi l'oxyde d'aluminium, le dioxyde de titane et/ou le quartz, et figurent en particulier en une proportion de 5 à 30 % en volume.
- Matière moulée selon la revendication 2, caractérisée en ce que les charges sont choisies parmi des particules de matière plastique thermoplastique ou thermodurcissable, en particulier de polystyrène.
- Matière moulée selon la revendication 2, caractérisée en ce que les charges comprennent des fibres organiques, des fibres minérales ou des fibres de carbone et/ou de SiC.
- Matière moulée selon l'une quelconque des revendications 1 à 5, qui comprend un sol-gel de résorcinol/formaldéhyde et un catalyseur de polymérisation basique, en particulier de l'hydroxyde d'ammonium et/ou du carbonate de sodium.
- Procédé de préparation de moules de coulée pour la coulée de précision et le moulage en châssis de métaux ou d'alliages métalliques, où l'on emploie des aérogels de matière plastique et/ou de carbone, très poreux, à pores ouverts, procédé dans lequel :a) on imprègne un moule en cire d'un sol de matière plastique de composition appropriée et d'un catalyseur approprié,b) on transforme le sol en un gel à une température inférieure à la température d'écoulement de la cire,b') on applique éventuellement une ou plusieurs couches du sol et on met chaque couche partiellement ou totalement sous la forme d'un gel,c) on sèche le gel à une température inférieure au point d'écoulement de la cire, etd) on sépare la cire du gel solidifié par fusion ou combustion à une température supérieure à la température d'écoulement de la cire.
- Procédé de préparation de moules de coulée pour la coulée de précision et le moulage en châssis de métaux ou d'alliages métalliques, où l'on emploie des aérogels de matière plastique et/ou de carbone, très poreux, à pores ouverts, procédé dans lequel :a) on introduit une pièce moulée en cire dans un récipient,b) on remplit partiellement ou totalement le récipient avec un sol de matière plastique,c) on transforme le sol en un gel à une température inférieure à la température d'écoulement de la cire,d) on sèche le gel à une température inférieure à la température d'écoulement de la cire, ete) on sépare la cire du gel solidifié par fusion ou combustion à une température supérieure à la température d'écoulement de la cire.
- Procédé selon la revendication 7 ou 8, caractérisé en ce que l'on réalise le séchage du gel à une température comprise dans l'intervalle allant de 20 à 50 °C, pendant une durée d'au moins 24 heures.
- Procédé selon l'une quelconque des revendications 7 à 9, caractérisé en ce que l'on réalise la pyrolyse du gel solidifié à une température d'au moins 600 °C, en particulier d'au moins 1000 °C, en l'espace de 4 à 24 heures.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19911847 | 1999-03-17 | ||
| DE19911847A DE19911847A1 (de) | 1999-03-17 | 1999-03-17 | Fein- und Formguß in Kunststoff/Kohlenstoff-Aerogelen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1036610A1 EP1036610A1 (fr) | 2000-09-20 |
| EP1036610B1 true EP1036610B1 (fr) | 2005-08-31 |
Family
ID=7901270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00104214A Expired - Lifetime EP1036610B1 (fr) | 1999-03-17 | 2000-03-01 | Moulage de précision et en châssis dans des aérogels organiques ou en carbone |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US6599953B1 (fr) |
| EP (1) | EP1036610B1 (fr) |
| AT (1) | ATE303214T1 (fr) |
| DE (2) | DE19911847A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399446A (zh) * | 2014-11-06 | 2015-03-11 | 北京化工大学 | 一种TiO2/RFC复合微球负载型光降解剂及其制备方法 |
| CN107498003A (zh) * | 2017-08-10 | 2017-12-22 | 合肥市田源精铸有限公司 | 一种轻质耐磨钢铸件的加工方法 |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911847A1 (de) * | 1999-03-17 | 2000-09-28 | Deutsch Zentr Luft & Raumfahrt | Fein- und Formguß in Kunststoff/Kohlenstoff-Aerogelen |
| DE19939062A1 (de) * | 1999-08-18 | 2001-02-22 | Deutsch Zentr Luft & Raumfahrt | Verwendung von Kunststoff/Kohlenstoff-Aerogelen als Kernwerkstoff |
| US6806299B2 (en) * | 2001-05-18 | 2004-10-19 | The Regents Of The University Of California | Preparation of hydrophobic organic aeorgels |
| DE10216403B4 (de) * | 2002-04-12 | 2004-03-18 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Aerogelgebundene Formstoffe mit hoher Wärmeleitfähigkeit |
| DE10352574A1 (de) * | 2003-11-11 | 2005-06-16 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Füllstoff enthaltende Aerogele |
| DE102004027382B4 (de) * | 2004-06-04 | 2006-03-09 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Thermisch zersetzbare Kohlenstoff-Aerogelsande |
| WO2006010449A2 (fr) * | 2004-07-23 | 2006-02-02 | Ceramtec Ag Innovative Ceramic Engineering | Noyaux de fonderie en ceramique |
| US20070089849A1 (en) * | 2005-10-24 | 2007-04-26 | Mcnulty Thomas | Ceramic molds for manufacturing metal casting and methods of manufacturing thereof |
| US8851442B2 (en) * | 2008-01-22 | 2014-10-07 | Honeywell International Inc. | Aerogel-bases mold for MEMS fabrication and formation thereof |
| DE102008056856A1 (de) * | 2008-11-12 | 2010-05-20 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Gießereikerne mit verbesserten Entkernungseigenschaften I |
| US8293657B2 (en) | 2010-11-05 | 2012-10-23 | Honeywell International Inc. | Sacrificial layers made from aerogel for microelectromechanical systems (MEMS) device fabrication processes |
| CN102351506B (zh) * | 2011-07-18 | 2013-04-10 | 南京工业大学 | 一种块状耐高温硅-炭复合气凝胶材料的制备方法 |
| CN102343285B (zh) * | 2011-07-18 | 2013-04-10 | 南京工业大学 | 一种块状硅-炭复合气凝胶的制备方法 |
| WO2013163150A1 (fr) | 2012-04-23 | 2013-10-31 | General Electric Company | Profil aérodynamique de turbine à commande d'épaisseur de paroi locale |
| DE102016223619A1 (de) * | 2015-12-15 | 2017-06-22 | Robert Bosch Gmbh | Schlichte zum Auftragen auf die poröse Oberfläche von Formen und/oder Kernen für den Metallguss |
| DE102015225227A1 (de) * | 2015-12-15 | 2017-06-22 | Robert Bosch Gmbh | Speiser für insbesondere aus Gusseisen bestehende Gussstücke |
| EP3529301B1 (fr) * | 2016-10-24 | 2023-11-29 | Blueshift Materials, Inc. | Aérogel polymère organique renforcé par des fibres |
| WO2018140804A1 (fr) | 2017-01-26 | 2018-08-02 | Blueshift International Materials, Inc. | Aérogels polymères organiques comprenant des microstructures |
| BG67252B1 (bg) * | 2017-06-27 | 2021-02-15 | Е.Миролио ЕАД | Метод за получаване на вискозна изкуствена коприна с променяща се дебелина, продукт, получен по този метод и инсталация за реализиране на метода |
| CN109675620B (zh) * | 2017-10-18 | 2021-07-09 | 中国石油化工股份有限公司 | 含钴催化剂及其制备方法和应用 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873218A (en) * | 1988-05-26 | 1989-10-10 | The United States Department Of Energy | Low density, resorcinol-formaldehyde aerogels |
| US5242647A (en) * | 1990-08-23 | 1993-09-07 | Regents Of The University Of California | Method of casting aerogels |
| DE19523382C2 (de) * | 1995-06-30 | 2003-04-30 | Jochen Fricke | Kohlenstoffaerogele und Verfahren zu deren Herstellung |
| AU7720596A (en) * | 1995-11-09 | 1997-05-29 | Aspen Systems, Inc. | Flexible aerogel superinsulation and its manufacture |
| JP4128628B2 (ja) * | 1996-05-15 | 2008-07-30 | ハイピリオン カタリシス インターナショナル インコーポレイテッド | 堅い多孔質炭素構造体及びその製造方法 |
| DE19721600A1 (de) * | 1997-05-23 | 1998-11-26 | Hoechst Ag | Nanoporöse interpenetrierende organisch-anorganische Netzwerke |
| DE19738466C1 (de) * | 1997-09-03 | 1998-12-24 | Deutsch Zentr Luft & Raumfahrt | Stranggußvorrichtung |
| DE19911847A1 (de) * | 1999-03-17 | 2000-09-28 | Deutsch Zentr Luft & Raumfahrt | Fein- und Formguß in Kunststoff/Kohlenstoff-Aerogelen |
-
1999
- 1999-03-17 DE DE19911847A patent/DE19911847A1/de not_active Ceased
-
2000
- 2000-03-01 DE DE50011046T patent/DE50011046D1/de not_active Expired - Lifetime
- 2000-03-01 EP EP00104214A patent/EP1036610B1/fr not_active Expired - Lifetime
- 2000-03-01 AT AT00104214T patent/ATE303214T1/de not_active IP Right Cessation
- 2000-03-17 US US09/527,809 patent/US6599953B1/en not_active Expired - Fee Related
-
2003
- 2003-05-30 US US10/449,794 patent/US6887915B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399446A (zh) * | 2014-11-06 | 2015-03-11 | 北京化工大学 | 一种TiO2/RFC复合微球负载型光降解剂及其制备方法 |
| CN107498003A (zh) * | 2017-08-10 | 2017-12-22 | 合肥市田源精铸有限公司 | 一种轻质耐磨钢铸件的加工方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1036610A1 (fr) | 2000-09-20 |
| US6599953B1 (en) | 2003-07-29 |
| US6887915B2 (en) | 2005-05-03 |
| US20030212152A1 (en) | 2003-11-13 |
| ATE303214T1 (de) | 2005-09-15 |
| DE19911847A1 (de) | 2000-09-28 |
| DE50011046D1 (de) | 2005-10-06 |
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