EP1227908A1 - Procede et dispositif pour produire des structures quadrillees - Google Patents

Procede et dispositif pour produire des structures quadrillees

Info

Publication number
EP1227908A1
EP1227908A1 EP00958218A EP00958218A EP1227908A1 EP 1227908 A1 EP1227908 A1 EP 1227908A1 EP 00958218 A EP00958218 A EP 00958218A EP 00958218 A EP00958218 A EP 00958218A EP 1227908 A1 EP1227908 A1 EP 1227908A1
Authority
EP
European Patent Office
Prior art keywords
container
refractory
fire
refractory material
molten metal
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.)
Granted
Application number
EP00958218A
Other languages
German (de)
English (en)
Other versions
EP1227908B1 (fr
Inventor
Dieter Girlich
Jürgen SCHÄDLICH-STUBENRAUCH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mpore GmbH
M Pore GmbH
Original Assignee
Mpore GmbH
M Pore GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mpore GmbH, M Pore GmbH filed Critical Mpore GmbH
Publication of EP1227908A1 publication Critical patent/EP1227908A1/fr
Application granted granted Critical
Publication of EP1227908B1 publication Critical patent/EP1227908B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form

Definitions

  • the invention relates to a method for the production of grid mesh structures, in particular for the production of metallic grid mesh structures, and a device suitable therefor.
  • Reticular structures made of metal and other materials have a wide range of applications.
  • these structures can be used as low weight components, battery plates, electrochemical anodes and cathodes, filters for fluids, separators for fluid media, heat shields and for numerous other applications.
  • U.S. Patent 3,616,841 which is considered the closest prior art, discloses a method of making an insoluble foam material having a predetermined reticulated structure. This process involves the production of a self-supporting reticulated polyurethane foam; the production of a refractory mass by filling the cavities of the polyurethane foam with an aqueous gypsum suspension and this Sus pension binds; heating the refractory mass to a temperature of about 120 ° C (250 ° F) over a period of two hours; creating voids in the refractory molding material by raising the temperature of the refractory molding material to 535 to 815 ° C (1000 to 1500 ° F) to volatilize all of the foam; introducing a molten substance consisting of metals, metal alloys, ceramics or cerment into the refractory molding compound, the amount of the substance being sufficient to fill the cavities previously occupied by the reticulated structure; and solidifying the molten substance by lowering
  • the melting of the substance, which is introduced into the refractory molding compound, requires a great deal of equipment, particularly in the case of refractory metals, or cannot be achieved technologically.
  • the structure of the foam is determined by the connection of the foams to the wax plates.
  • the foam structure determines the technical parameters of the end product, so that the statistical fluctuation range must be as small as possible to ensure that the technical parameters of the end product are reached.
  • US 3,616,841 proposes various cooling methods, such as spraying with water or air.
  • the cooling effect is weakened considerably, however, since the molding compound hinders the heat flow changed.
  • the production of massive metal areas together with the grid structure is associated with the problem of very slow cooling.
  • the specified process steps hardly or not permit controlled solidification of the metal in order to obtain a void-free and fine-grained structure.
  • the slow solidification of the metal leads to long process times, which also stand in the way of automated production.
  • step (1) can be followed by modification of the surface of the foam pre-structure. This is preferably done by roughening or structuring the surface of the foam pre-structure.
  • the metal melt can be filled into the heat-resistant container (step (7)) by means of pressure support or vacuum support.
  • step (8) the grid structure obtained can be cleaned and, if necessary, modified by coating the grid structure, for example.
  • the method according to the invention offers several advantages. It is no longer necessary to glue the foam pre-structure to the pouring system and the pouring funnel. This significantly reduces the material and time used in the manufacture of the mold. Furthermore, the source of error associated with the uncontrollable gluing process is eliminated, since large areas of the foam pre-structure have no connection to the pouring system. Only the amount of refractory material needed to make the grid structure is required. The foam pre-structure protrudes from the fireproof molding compound after removal from the molding container. This makes it easy to check whether, after the foam pre-body has evaporated, all the webs and cells have a sufficiently good connection to the outside to ensure a complete cast.
  • the accessibility of the foam pre-structure from all sides has the advantage that the refractory mold can be heated without delay and that free access to the webs and cells of the foam pre-structure enables accelerated volatilization of the foam pre-structure. After volatilization, it is also very easy to check whether sufficient webs maintain the molten metal's access to the internal structure, the "negative form". Since the refractory material is preheated before it is placed in the refractory container, the molten metal solidifies from the outside This means that the temperature of the container and the refractory material can be controlled by cooling the molten metal without voids.
  • the refractory container has at least one opening for pouring the molten metal into the refractory material.
  • the interior of the container is preferably larger than the refractory, preheated material.
  • a freely selectable space is created between the container wall and the body made of refractory material, so that an arbitrarily shaped, massive wall can be cast onto the grid structure.
  • This wall is in direct contact with the container wall, so that the heat of solidification from the cast metal can be dissipated directly into the container wall and a fine-grained casting structure is created.
  • the webs of the grid structure are optimally connected to the solid wall.
  • the foundry mesh structures obtained by the process according to the invention using the refractory container can be integrated into castings which can be produced using various casting processes such as die casting, permanent mold casting, centrifugal casting, low pressure casting or counter pressure casting.
  • the Gittemetz structures themselves can also be cast using these methods.
  • the process enables the production of grid mesh structures of various fineness in terms of web thickness and cell size. Combinations of different cell sizes and web thicknesses in one body are also possible.
  • the method can be carried out continuously, since the wax plates required for bonding the foam pre-structure in the prior art methods are dispensed with.
  • Any material that has a sufficient number of pores can be used as the foam pre-structure.
  • This material is preferably polyurethane foam.
  • Gypsum is preferably used as the refractory material.
  • the molten metal consists of metals, metal alloys, ceramics or metal ceramics. However, any castable material can be used.
  • the metallic grid mesh structures obtained by the invention can be used, for example, as catalysts, for EMC shielding and in batteries.
  • a Zn / Cu alloy is used as the metal melt for the production of a catalyst for stabilizing the combustion of diesel fuel, with which the refractory material is filled.
  • Gittemetz structures obtained from the invention which consist of aluminum and which are coated with lead after step (8), can be used in batteries, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Filtering Materials (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

L'invention concerne un procédé permettant de produire des structures quadrillées, notamment en métal, ainsi qu'un dispositif approprié à cet effet. L'invention vise à simplifier la production de structures quadrillées, de manière à permettre une fabrication automatique. A cet effet, l'invention vise à mettre au point un procédé qui permette de produire des structures quadrillées de grandes dimensions en grosse production. A cette fin, il est prévu les étapes suivantes : (a) introduire une structure préliminaire en mousse réticulée dans un récipient relevable ; (2) infiltrer cette structure avec une matière réfractaire ; (3) solidifier la matière ; (4) sortir la matière réfractaire solidifiée du récipient relevable ; (5) enlever la structure préliminaire en mousse ; (6) introduire le corps préchauffé obtenu dans un récipient résistant aux températures élevées ; (7) infiltrer le corps avec une matière métallique en fusion et (8) sortir le corps obtenu après solidification et enlever la matière réfractaire. Le dispositif comprend un récipient réfractaire, dont l'espace intérieur est plus grand que le corps réfractaire préchauffé.
EP00958218A 1999-08-20 2000-08-04 Procede pour produire des structures metalliques quadrillees Expired - Lifetime EP1227908B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19939155 1999-08-20
DE19939155A DE19939155A1 (de) 1999-08-20 1999-08-20 Verfahren und Vorrichtung zur Herstellung von Glitternetzstrukturen
PCT/DE2000/002597 WO2001014086A1 (fr) 1999-08-20 2000-08-04 Procede et dispositif pour produire des structures quadrillees

Publications (2)

Publication Number Publication Date
EP1227908A1 true EP1227908A1 (fr) 2002-08-07
EP1227908B1 EP1227908B1 (fr) 2003-10-29

Family

ID=7918788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00958218A Expired - Lifetime EP1227908B1 (fr) 1999-08-20 2000-08-04 Procede pour produire des structures metalliques quadrillees

Country Status (9)

Country Link
US (1) US6857461B2 (fr)
EP (1) EP1227908B1 (fr)
JP (1) JP2003507192A (fr)
AT (1) ATE252956T1 (fr)
AU (1) AU6982700A (fr)
CA (1) CA2381843C (fr)
DE (2) DE19939155A1 (fr)
ES (1) ES2209965T3 (fr)
WO (1) WO2001014086A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010112393A1 (fr) 2009-04-03 2010-10-07 Nv Bekaert Sa Echangeur thermique ameliore
WO2010112392A1 (fr) 2009-04-03 2010-10-07 Nv Bekaert Sa Echangeur thermique tridimensionnel
WO2011051106A1 (fr) 2009-10-29 2011-05-05 Nv Bekaert Sa Fabrication d'un échangeur de chaleur à partir d'un milieu poreux et de conduits
WO2011144417A1 (fr) 2010-05-20 2011-11-24 Nv Bekaert Sa Matériau 3d poreux comportant une face usinée

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10257942A1 (de) * 2002-12-12 2004-06-24 Krauss-Maffei Wegmann Gmbh & Co. Kg Schutzmodul zum Schutz von Objekten gegen Bedrohungen, insbesondere durch Hohlladungen
DE10340681B4 (de) * 2003-09-04 2006-09-28 M.Pore Gmbh Verfahren zur Herstellung einer stoffschlüssigen, wärmeleitenden Verbindung zwischen einer offenporigen Schaumstruktur und einem nichtporösen Grundkörper für Wärmeübertrager, insbesonderer Kühlkörper
DE102004026959B3 (de) * 2004-06-02 2006-02-16 Girlich, Dieter, Dr. Verfahren zur Herstellung metallischer Gitterstrukturen
DE102005037141A1 (de) * 2005-08-06 2007-02-08 Syntan Gbr(vertretungsberechtigter Gesellschafter Hr. Dr. Dieter Girlich, 01309 Dresden) Spongiös-metallisches Implantat und Verfahren zu seiner Herstellung
CN101836051B (zh) * 2007-10-25 2013-07-31 贝卡尔特燃烧技术股份有限公司 热交换器元件及其制造方法和包含该元件的供暖锅炉
EP2056037A1 (fr) 2007-10-30 2009-05-06 Büchi Labortechnik AG Chauffage, procédé de chauffage et de laminarisation, séparateur électrostatique, séchoir de pulvérisation, dispositif de séparation et procédé de séparation de particules
DE102007062302A1 (de) 2007-12-21 2009-06-25 Beru Ag Heizvorrichtung
DE102009011763B4 (de) 2009-03-04 2012-11-08 Bpe International Dr. Hornig Gmbh Verfahren zur Herstellung einer offenporigen metallischen Gitterstruktur und hieraus bestehender Leichtbauwerkstoff
DE102009013058A1 (de) 2009-03-16 2010-09-23 Wolfgang Kollmann Metallische Leiterstruktur und Verfahren zu deren Herstellung
DE102014118178A1 (de) 2013-12-19 2015-06-25 Mayser Gmbh & Co. Kg Verfahren zum Herstellen einer metallischen Struktur
DE102014118177A1 (de) 2013-12-19 2015-06-25 Mayser Gmbh & Co. Kg Verfahren zum Herstellen von metallischen Formkörpern, metallischer Formkörper und Verfahren zum Ausbilden eines Bauteils mit einem Wärmetauscher
US9789536B2 (en) 2015-01-20 2017-10-17 United Technologies Corporation Dual investment technique for solid mold casting of reticulated metal foams
US9789534B2 (en) 2015-01-20 2017-10-17 United Technologies Corporation Investment technique for solid mold casting of reticulated metal foams
US9737930B2 (en) * 2015-01-20 2017-08-22 United Technologies Corporation Dual investment shelled solid mold casting of reticulated metal foams
US10035174B2 (en) 2015-02-09 2018-07-31 United Technologies Corporation Open-cell reticulated foam
US9884363B2 (en) 2015-06-30 2018-02-06 United Technologies Corporation Variable diameter investment casting mold for casting of reticulated metal foams
US9731342B2 (en) 2015-07-07 2017-08-15 United Technologies Corporation Chill plate for equiax casting solidification control for solid mold casting of reticulated metal foams
CN109513907A (zh) * 2018-11-07 2019-03-26 三峡大学 一种二十四面螺旋体结构泡沫铝的制备方法
CN110449563B (zh) * 2019-08-30 2020-11-10 西安交通大学 一种碳化硅陶瓷-镍基合金复合材料零件及其制备方法
CN112355277B (zh) * 2019-10-29 2022-02-08 沈阳铸造研究所有限公司 一种高熔点Kelvin结构点阵金属及其制备方法与应用

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US3946039A (en) * 1967-10-30 1976-03-23 Energy Research & Generation, Inc. Reticulated foam structure
US3616841A (en) * 1967-10-30 1971-11-02 Energy Research And Generation Method of making an inorganic reticulated foam structure
US3996991A (en) * 1973-11-13 1976-12-14 Kubota, Ltd. Investment casting method
JPS5344427A (en) * 1976-10-05 1978-04-21 Kubota Ltd Method to manufacture propellers by using extinguishable pattern
JPS6340663A (ja) * 1986-08-05 1988-02-22 Miyagawa Kasei Kogyo Kk 鉛蓄電池用集電体グリツドの鋳造装置
JPS6384758A (ja) * 1986-09-29 1988-04-15 Nippon Steel Corp 複合鋳造品の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0114086A1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010112393A1 (fr) 2009-04-03 2010-10-07 Nv Bekaert Sa Echangeur thermique ameliore
WO2010112392A1 (fr) 2009-04-03 2010-10-07 Nv Bekaert Sa Echangeur thermique tridimensionnel
WO2011051106A1 (fr) 2009-10-29 2011-05-05 Nv Bekaert Sa Fabrication d'un échangeur de chaleur à partir d'un milieu poreux et de conduits
US8875395B2 (en) 2009-10-29 2014-11-04 Universiteit Gent Manufacturing heat exchanger from porous medium and conduits
WO2011144417A1 (fr) 2010-05-20 2011-11-24 Nv Bekaert Sa Matériau 3d poreux comportant une face usinée

Also Published As

Publication number Publication date
WO2001014086A1 (fr) 2001-03-01
EP1227908B1 (fr) 2003-10-29
US6857461B2 (en) 2005-02-22
ATE252956T1 (de) 2003-11-15
ES2209965T3 (es) 2004-07-01
DE19939155A1 (de) 2001-02-22
US20020088598A1 (en) 2002-07-11
DE50004277D1 (de) 2003-12-04
AU6982700A (en) 2001-03-19
CA2381843C (fr) 2009-01-27
JP2003507192A (ja) 2003-02-25
CA2381843A1 (fr) 2001-03-01

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