EP1417060B1 - Moule et son procede de fabrication - Google Patents

Moule et son procede de fabrication Download PDF

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Publication number
EP1417060B1
EP1417060B1 EP03740129A EP03740129A EP1417060B1 EP 1417060 B1 EP1417060 B1 EP 1417060B1 EP 03740129 A EP03740129 A EP 03740129A EP 03740129 A EP03740129 A EP 03740129A EP 1417060 B1 EP1417060 B1 EP 1417060B1
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EP
European Patent Office
Prior art keywords
binder component
water
particulate material
polyamine
binder
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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EP03740129A
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German (de)
English (en)
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EP1417060A1 (fr
Inventor
Helge HÄNSEL
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Meg Binder Technologien & Co KG GmbH
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Meg Binder Technologien & Co KG GmbH
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    • 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
    • B22C1/18—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 of inorganic agents
    • B22C1/185—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 of inorganic agents containing phosphates, phosphoric acids or its derivatives
    • 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
    • B22C1/167—Mixtures of inorganic and organic binding agents

Definitions

  • the invention relates to a water-dispersible casting mold, in particular casting core, for the production of castings, the a water-insoluble, particulate material, in particular Foundry sand, a binder, which acts as a first binder component has at least one condensing phosphate.
  • the invention further relates to a process for the preparation such a mold by a water-insoluble, Particulate material, in particular molding sand, with a binder, which as a first binder component at least having a condensed phosphate, with addition mixed by water, the mixture is shaped and at least one Part of the added free water is removed.
  • Foundry cores of the aforementioned composition are known. They are usually in core boxes using core shooters manufactured for mass production.
  • the core boxes are provided with corresponding mold cavities, in which Introductory openings lead, via the so-called Shooting head a water-insoluble, provided with a binder, particulate material using compressed air is injected into the mold cavities.
  • particulate Material is generally molding sand, such as silica, zircon, chromite sands or the like, which are solidifiable by the binder.
  • the molding sand should be a have good flowability.
  • DE 195 49 469 A1 describes a casting core on the Base of solidified by means of a water-soluble binder Foundry sand, wherein as a binder phosphoric acid or condensed Phosphates, such as sodium polyphosphate and sodium hexametaphosphate, are provided.
  • a binder phosphoric acid or condensed Phosphates such as sodium polyphosphate and sodium hexametaphosphate
  • a casting core can be removed, which for Solidification of the molding sand a binder of a polyphosphate chains having water-soluble phosphate glass or from a water-soluble borate glass.
  • the foundry core is the molding sand with the binder under Adding water mixed, the mixture in the core box shot in and the excess water by heating expelled from the mold.
  • the known casting cores are water-dispersible after casting, i.e. they dissolve after immersion in water again, which eliminates the time-consuming coring.
  • Another advantage of casting cores of this type is that both in the manufacture of the casting cores and the casting of the Castings as well as the coring of the castings no polluting Release substances.
  • the binders used also have an inorganic chemistry, so that a burning of the binder during the casting reliably is avoided.
  • the invention is based on the object of a casting mold, in particular a casting core, with a first binder component increased on the basis of condensed phosphates To give bending and abrasion resistance and temperature resistance to increase, but acceptable Cycle times in the core production to receive and none or release only small quantities of environmentally harmful substances. It is also concerned with the production of such a mold directed.
  • this object is in a mold he mentioned type in that the binder as a second binder component comprises at least one polyamine.
  • both the bending and the abrasion resistance of a casting mold or a casting core of a water-insoluble, particulate material and a binder based on condensed phosphates can be significantly increased even by the addition of only small amounts of polyamines, without the water dispersibility affect the cast casting core.
  • bending strengths of more than 150 N / cm 2 can be achieved, reliably avoiding a failure of the casting core and resulting defective castings.
  • the abrasion resistance of the casting mold or of the casting core is improved in such a way that impairments of the casting by sand particles are virtually ruled out.
  • polyamines are in this context saturated or unsaturated, open-chain or cyclic organic compounds with multiple primary, secondary and / or tertiary amino groups, especially in liquid Form, meant.
  • water-insoluble, particulate materials in particular any known form sands, e.g. Silica, zirconium, chromite sands or the like, or Other temperature-resistant materials, such as aluminum oxide, Aluminum silicate, quartz glass etc. in fine particulate Form, into consideration.
  • sands e.g. Silica, zirconium, chromite sands or the like
  • Other temperature-resistant materials such as aluminum oxide, Aluminum silicate, quartz glass etc. in fine particulate Form, into consideration.
  • other can also Be provided binder components.
  • polyamines such as ethylene, propylene, butylenediamines, etc. and their condensation products
  • the polyamine is selected from the group of polymeric polyamines.
  • the polyethyleneimines, ie branched polymers having primary, secondary and tertiary amino groups, polyvinylamines (vinylamine polymers) and / or copolymers thereof have proven to be particularly advantageous.
  • the flexural strength of a foundry core of a foundry sand and a binder based on sodium polyphosphate can be almost doubled by the addition of 0.1% by mass of polyvinylamine, based on the molding sand.
  • the polymeric polyamines can be provided in particular with a molecular weight between about 400 g / mol and about 10 7 g / mol.
  • the chemical formulas for polyvinylamine (I) and polyethyleneimine (II) are exemplified below:
  • the polyamine has a nitrogen content (N content) of between 1 and 35% by weight N / polymer unit, preferably between 10 and 33% by weight N / polymer unit, in particular between 20 and 33% by mass.
  • N / polymer unit Particularly good flexural strengths of the casting core of more than 200 N / cm 2 could be achieved in particular with polymeric polyamines having a relatively high amino group density in the range of 30% by weight N / polymer unit, eg with polyvinylamines, which have a nitrogen content of up to 33% by weight. Having polymer unit and in particular with polyvinyl amines having a high proportion of free amino groups, can be achieved.
  • the amount of polyamine provided as the second binder component is preferably between 0.001 and 1 mass%, in particular between 0.005 and 0.5 mass%, based on polyamine on the particulate material. It is aimed primarily according to the type of polyamine, the amount of In general, the higher the polyamine can be, the lower it can be the free amino group density of the polyamine is the binder properties in terms of bending and abrasion resistance to improve.
  • the first binder component based on condensed phosphates may contain or consist entirely of polyphosphates, preferably alkali metal polyphosphates, in particular sodium polyphosphate, and / or metaphosphates, preferably alkali metal metaphosphates, in particular sodium metaphosphates, for example sodium hexametaphosphate.
  • the first binder component contains or entirely consists of a water-soluble phosphate glass containing poly- and / or metaphosphate chains, wherein the phosphate glass preferably contains between 58 and 75 mass% phosphorus pentoxide (P 2 O 5 ) and between 25 and 42 Mass .-% alkali metal oxide, in particular sodium oxide (Na 2 O), having.
  • the binders mentioned are known as such and ensure a quick and lump-free dissolution of the casting core when it is immersed in the finished casting in water. Another advantage of this binder is that they lead even with relatively low moisture content to an optimal mixing with the molding sand and thereby ensure a sufficient initial strength of the casting core or the mold, so that only very short drying times required and thus very short cycle times for the production possible are.
  • the amount of the first binder component based on Condensed phosphates is useful between 0.25 and 25 mass%, preferably between 0.5 and 10 mass%, based on the water-insoluble, particulate material.
  • the invention is characterized by at least one additive, preferably in the form of sulfates, carbonates and / or nitrates from the group of alkali metals and / or alkaline earth metals, such as alkali metal carbonates, in particular sodium carbonate (Na 2 CO 3 ).
  • alkali metal carbonates in particular sodium carbonate (Na 2 CO 3 ).
  • alkali metal carbonates increases the dispersibility of the casting core in water and thus facilitates the gutting of the finished casting.
  • the molding material mixture for the mold or the Casting core usually still has a moisture content between 0.01 and 35 mass%, in particular between 0.1 and 5 mass%. After drying, the moisture content is the casting mold or the casting core usually about 0.01 mass% or less.
  • the method according to the invention is characterized that a second binder component based on at least a polyamine is added.
  • a second binder component based on at least a polyamine is added.
  • a preferred embodiment provides that the second binder component in liquid form with the particulate Material brought into contact and then the first binder component is added in dry form, the Mixture of water is added.
  • the second binder component may be in the liquid phase or as particular aqueous solution are present. Unless an aggregate, such as Alkali metal carbonates, this may be in the dissolved the mixture added water and the solution of Mixture be added.
  • Another preferred embodiment provides that the first Binder component dry with the particulate material mixed and then an aqueous solution with the second Binder component is added, again, if desired, the aggregate before adding the solution in this can be solved.
  • the binder and optionally the aggregate dissolved in water and the solution with the particulate material is brought into contact.
  • the most homogeneous possible distribution of the water-soluble binder and optionally the additive can be achieved with the particulate material.
  • the mixture first dried to a predetermined residual moisture, the mixture then added water again and formed the mixture is at least a portion of the added free Water is removed again.
  • the mixture may preferably initially to a predetermined residual moisture of about 0.1 mass .-% are dried. Let that way the cycle times for the preparation of the invention Further reduce the casting mold or the casting core by the Total amount of added water can be reduced.
  • the dried to a predetermined residual moisture Formstoffmischung well storable and by the re-addition of water easily processable.
  • the casting mold or the casting core after the Shaping appropriate to a residual moisture content of about 0.01 wt .-% based on the particulate material dried.
  • Composition A A:
  • Composition B is a composition of Composition B:
  • composition A For the preparation of the casting core according to composition A was dry mixed with the molding sand of the binder.
  • the casting core according to composition B became the second Binder component in dissolved form homogeneous with the molding sand mixed and the mixture then the first binder component mixed dry. Subsequently, each about 1.4 Mass .-% water based on the foundry sand added.
  • the Molding compound mixture was injected in each case in a core box and to a residual moisture content of about 0.01 mass% dried.
  • the casting cores produced in this way were different Service life t on their flexural strength ⁇ examined.
  • the flexural strength of the casting core can be improved by the Addition of only small amounts (0.1% by mass based on the Molding sand) of polyvinylamine are practically doubled.
  • Composition B according to Example 1 (molding sand, 2% by mass of sodium polyphosphate (binder component 1), 0.1% by mass of liquid polyvinylamine (binder component 2) and 1.4% by mass of moisture, based in each case on the molding sand) was used Increasing the temperature resistance additionally added sodium carbonate (Na 2 CO 3 ) as an additive. Casting cores were produced from the resultant molding material mixture in the manner described above and these were examined for their bending strength ⁇ after various service lives t.
  • the example shows that the bending strength of the casting core is not impaired by the addition of Na 2 CO 3 .
  • the addition of Na 2 CO 3 gives the casting core a significantly better temperature resistance, so that it is suitable for example for the production of aluminum castings with a casting temperature of about 800 ° C, with deformations of the casting core during the casting process safely and reliably avoided.
  • the addition of Na 2 CO 3 increases the water solubility of the foundry core, thus facilitating gutting of the finished casting.
  • the example makes it clear that the molding material mixture a good storability identifies and still several hours dried after the mixing process to form the casting core can be.
  • polyethylenimines A, B
  • polyethylenimines A, B
  • polyethyleneimines with a molecular weight of about 2000 g / mol (A) or 750,000 g / mol (B).
  • polyvinylamines (C, D, E) used with a molecular weight of about 400,000 g / mol, which is due to the proportion of free amino groups differ, which in turn corresponds to the degree of hydrolysis.
  • the polyvinylamine (C) has the highest degree of hydrolysis, the polyvinylamine (E) a lower contrast Degree of hydrolysis and the polyvinylamine (D) the lowest Degree of hydrolysis of polyvinylamines (C, D, E).
  • the production of the cores was done according to the example 1 described method. Then they were like that produced casting cores after different service lives t examined for their bending strength ⁇ .
  • the molding material mixtures were injected into a core box after different storage times t 1 of 0, 1, 2 and 3 h and dried.
  • the best values for the flexural strength of the casting core were obtained after a storage time t 1 of the molding material mixture of one hour, the mixture also being obtained immediately or at least three hours after mixing the but slightly poorer flexural strength Single component was processable, so that also here a good shelf life was found.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • External Artificial Organs (AREA)

Claims (36)

  1. Moule dispersable dans l'eau, en particulier noyau de moule, pour la production de pièces coulées, comprenant
    un matériau particulaire insoluble dans l'eau, en particulier du sable de moulage ;
    un liant, présentant comme premier agent de liaison au moins un phosphate condensé,
    caractérisé en ce que le liant présente comme deuxième agent de liaison au moins une polyamine.
  2. Moule selon la revendication 1, caractérisé en ce que la polyamine est choisie dans le groupe des polyamines polymères.
  3. Moule selon la revendication 1 ou 2, caractérisé en ce que la polyamine est choisie dans le groupe des polyéthylène-imines, des polyvinylamines et/ou de leurs copolymères.
  4. Moule selon la revendication 2 ou 3, caractérisé en ce que la polyamine présente une teneur en azote comprise entre 1 et 35 % en masse d'azote par unité de polymère.
  5. Moule selon l'une quelconque des revendications 2 à 4, caractérisé en ce que la polyamine présente une teneur en azote comprise entre 10 et 33 % en masse d'azote par unité de polymère.
  6. Moule selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la polyamine présente une teneur en azote comprise entre 20 et 33 % en masse d'azote par unité de polymère.
  7. Moule selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'on prévoit entre 0,001 et 1 % en masse de polyamine par rapport au matériau particulaire.
  8. Moule selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'on prévoit entre 0,005 et 0,5 % en masse de polyamine par rapport au matériau particulaire.
  9. Moule selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le premier agent de liaison contient un polyphosphate ou en est entièrement composé.
  10. Moule selon la revendication 9, caractérisé en ce que le polyphosphate est un polyphosphate de métal alcalin, en particulier un polyphosphate de sodium.
  11. Moule selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le premier agent de liaison contient un métaphosphate ou en est entièrement composé.
  12. Moule selon la revendication 11, caractérisé en ce que le métaphosphate est un métaphosphate de métal alcalin, en particulier un métaphosphate de sodium.
  13. Moule selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le premier agent de liaison comporte un verre phosphaté soluble dans l'eau contenant des chaínes de polyphosphates et/ou de métaphosphates ou en est entièrement composé.
  14. Moule selon la revendication 13, caractérisé en ce que le verre phosphaté présente entre 58 et 75 % en masse d'anhydride phosphorique (P2O5) et entre 25 et 42 % en masse d'oxyde de métal alcalin, en particulier d'oxyde de sodium (Na2O).
  15. Moule selon l'une quelconque des revendications 1 à 14, caractérisé en ce que l'on prévoit entre 0,25 et 25 % en masse de premier agent de liaison par rapport au matériau particulaire.
  16. Moule selon l'une quelconque des revendications 1 à 15, caractérisé en ce que l'on prévoit entre 0,5 et 10 % en masse de premier agent de liaison par rapport au matériau particulaire.
  17. Moule selon l'une quelconque des revendications 1 à 16, caractérisé par au moins un composé additionnel, de préférence sous la forme de sulfates, de carbonates et/ou de nitrates du groupe des métaux alcalins et/ou des métaux alcalinoterreux, tels que des carbonates de métaux alcalins, en particulier le carbonate de sodium (Na2CO3).
  18. Moule selon la revendication 17, caractérisé en ce que l'on prévoit entre 20 et 90 % en masse de carbonate de métal alcalin par rapport au premier agent de liaison.
  19. Moule selon la revendication 17 ou 18, caractérisé en ce que l'on prévoit entre 30 et 85 % en masse de carbonate de métal alcalin par rapport au premier agent de liaison.
  20. Moule selon l'une quelconque des revendications 1 à 19, caractérisé par une proportion d'humidité du mélange de matière à mouler comprise entre 0,01 et 35 % en masse par rapport au matériau particulaire.
  21. Moule selon la revendication 20, caractérisé en ce que la proportion d'humidité du mélange de matière à mouler est comprise entre 0,1 et 5 % en masse par rapport au matériau particulaire.
  22. Procédé de fabrication d'un moule dispersable dans l'eau, en particulier d'un noyau de moule, pour la production de pièces coulées, selon lequel un matériau particulaire insoluble dans l'eau, en particulier du sable de moulage, est mélangé par addition d'eau à un liant qui présente comme premier agent de liaison au moins un phosphate condensé, selon lequel on réalise le mélange et l'on élimine au moins une partie de l'eau libre ajoutée, caractérisé en ce que l'on ajoute un deuxième agent de liaison sur la base d'au moins une polyamine.
  23. Procédé selon la revendication 22, caractérisé en ce que l'on utilise une polyamine selon l'une quelconque des revendications 2 à 6.
  24. Procédé selon la revendication 22 ou 23, caractérisé en ce que la polyamine est utilisée dans une quantité comprise entre 0,001 et 1 % en masse, en particulier entre 0,005 et 0,5 % en masse par rapport au matériau particulaire.
  25. Procédé selon l'une quelconque des revendications 22 à 24, caractérisé en ce que l'on utilise un premier agent de liaison selon l'une quelconque des revendications 9 à 14.
  26. Procédé selon l'une quelconque des revendications 22 à 25, caractérisé en ce que le premier agent de liaison est utilisé en quantité comprise entre 0,25 et 25 % en masse, en particulier entre 0,5 et 10 % en masse par rapport au matériau particulaire.
  27. Procédé selon l'une quelconque des revendications 22 à 26, caractérisé en ce que l'on utilise au moins un composé additionnel, de préférence sous la forme de sulfates, de carbonates et/ou de nitrates du groupe des métaux alcalins et/ou des métaux alcalinoterreux, tels que des carbonates de métaux alcalins, en particulier le carbonate de sodium (Na2CO3).
  28. Procédé selon la revendication 27, caractérisé en ce que le carbonate de métal alcalin est utilisé en quantité comprise entre 20 et 90 % en masse, en particulier entre 30 et 85 % en masse par rapport au premier agent de liaison.
  29. Procédé selon l'une quelconque des revendications 22 à 28, caractérisé en ce que le deuxième agent de liaison est mis en contact avec la matériau particulaire sous forme liquide et en ce que l'on y mélange ensuite le premier agent de liaison sous forme sèche en ajoutant de l'eau au mélange.
  30. Procédé selon la revendication 27, caractérisé en ce que le composé additionnel est dissous dans de l'eau et en ce que l'on ajoute la solution au mélange.
  31. Procédé selon l'une quelconque des revendications 22 à 28, caractérisé en ce que le premier agent de liaison est mélangé sec au matériau particulaire et en ce que l'on ajoute ensuite une solution aqueuse avec le deuxième agent de liaison.
  32. Procédé selon la revendication 31, caractérisé en ce que l'on dissout un composé additionnel dans la solution avant de l'ajouter.
  33. Procédé selon la revendication 27 ou 28, caractérisé en ce que l'on dissout dans l'eau tous les agents de liaison et le cas échéant un composé additionnel et en ce que l'on met en contact la solution avec le matériau particulaire.
  34. Procédé selon l'une quelconque des revendications 22 à 33, caractérisé en ce que l'on ajoute jusqu'à 35 % en masse d'eau par rapport au matériau particulaire.
  35. Procédé selon l'une quelconque des revendications 22 à 34, caractérisé en ce que le mélange est d'abord séché jusqu'à obtention d'une humidité résiduelle prédéfinie, en ce qu'ensuite, on mélange à nouveau de l'eau au mélange et on le moule tout en éliminant à nouveau au moins une partie de l'eau libre ajoutée.
  36. Procédé selon la revendication 35, caractérisé en ce que le mélange est d'abord séché jusqu'à obtention d'une humidité résiduelle prédéfinie d'environ 0,1 % en masse.
EP03740129A 2002-06-15 2003-05-08 Moule et son procede de fabrication Expired - Lifetime EP1417060B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10226817A DE10226817C1 (de) 2002-06-15 2002-06-15 Giessform und Verfahren zu deren Herstellung
DE10226817 2002-06-15
PCT/EP2003/004802 WO2003106071A1 (fr) 2002-06-15 2003-05-08 Moule et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1417060A1 EP1417060A1 (fr) 2004-05-12
EP1417060B1 true EP1417060B1 (fr) 2005-08-03

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EP03740129A Expired - Lifetime EP1417060B1 (fr) 2002-06-15 2003-05-08 Moule et son procede de fabrication

Country Status (7)

Country Link
US (1) US20040238156A1 (fr)
EP (1) EP1417060B1 (fr)
AT (1) ATE301013T1 (fr)
AU (1) AU2003276882A1 (fr)
DE (2) DE10226817C1 (fr)
MX (1) MXPA04001282A (fr)
WO (1) WO2003106071A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005024524A1 (de) * 2005-03-08 2006-09-14 Meg Binder Technologien Gmbh & Co. Kg Form und Verfahren zu deren Herstellung

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Publication number Priority date Publication date Assignee Title
DE102005051439B4 (de) * 2004-11-05 2014-11-27 Bayerische Motoren Werke Aktiengesellschaft Anwendung eines wasserdispergierbaren Stützkerns zur Herstellung eines Strukturhohlbauteils
US20160158829A1 (en) * 2014-12-05 2016-06-09 Hyundai Motor Company Core composition for casting, and method for preparing core for casting using the same
DE102015223008A1 (de) * 2015-11-21 2017-05-24 H2K Minerals Gmbh Form, Verfahren zu ihrer Herstellung und Verwendung

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US4078599A (en) * 1976-07-26 1978-03-14 National Research Institute For Metals Self-curing and water-soluble mold
GB9022754D0 (en) * 1990-10-19 1990-12-05 Pilkington Controlled Release Improvements in or relating to water dispersible moulds
GB9226815D0 (en) * 1992-12-23 1993-02-17 Borden Uk Ltd Improvements in or relating to water dispersible moulds
DE19549469C2 (de) * 1995-07-12 1999-05-12 Eichenauer Gmbh & Co Kg F Gießkern zum Gießformen und Verfahren zum Herstellen eines solchen Gießkerns
DE19525307C2 (de) * 1995-07-12 2003-04-03 Eichenauer Gmbh & Co Kg F Formmasse zur Herstellung von Gießkernen und Verfahren zur Herstellung eines Gießkerns
US5908889A (en) * 1997-12-03 1999-06-01 Nalco Chemical Company Polyamide binders for ceramics manufacture
DE10022008B4 (de) * 2000-05-05 2004-12-09 Agrolinz Melamin Gmbh Formmassen aus Holzpartikeln und Duroplast-Prepolymeren sowie ein Verfahren zu deren Herstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005024524A1 (de) * 2005-03-08 2006-09-14 Meg Binder Technologien Gmbh & Co. Kg Form und Verfahren zu deren Herstellung
DE102005024524B4 (de) * 2005-03-08 2006-12-07 Meg Binder Technologien Gmbh & Co. Kg Form und Verfahren zu deren Herstellung

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Publication number Publication date
MXPA04001282A (es) 2004-05-27
EP1417060A1 (fr) 2004-05-12
US20040238156A1 (en) 2004-12-02
DE50300900D1 (de) 2005-09-08
AU2003276882A8 (en) 2003-12-31
WO2003106071A1 (fr) 2003-12-24
DE10226817C1 (de) 2003-11-13
AU2003276882A1 (en) 2003-12-31
ATE301013T1 (de) 2005-08-15

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