[go: up one dir, main page]

EP2014392B1 - Mélange de matière à mouler, pièce brute pour des besoins de fonderie et procédé de fabrication d'une pièce brute - Google Patents

Mélange de matière à mouler, pièce brute pour des besoins de fonderie et procédé de fabrication d'une pièce brute Download PDF

Info

Publication number
EP2014392B1
EP2014392B1 EP08007906A EP08007906A EP2014392B1 EP 2014392 B1 EP2014392 B1 EP 2014392B1 EP 08007906 A EP08007906 A EP 08007906A EP 08007906 A EP08007906 A EP 08007906A EP 2014392 B1 EP2014392 B1 EP 2014392B1
Authority
EP
European Patent Office
Prior art keywords
binding agent
grain size
sio
material mixture
particles
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.)
Revoked
Application number
EP08007906A
Other languages
German (de)
English (en)
Other versions
EP2014392A3 (fr
EP2014392A2 (fr
Inventor
Bettina Wehren
Ralf-Joachim Gerlach
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.)
Imerys Metalcasting Germany GmbH
Original Assignee
Minelco 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39830346&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2014392(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minelco GmbH filed Critical Minelco GmbH
Priority to SI200830356T priority Critical patent/SI2014392T1/sl
Priority to PL08007906T priority patent/PL2014392T3/pl
Publication of EP2014392A2 publication Critical patent/EP2014392A2/fr
Publication of EP2014392A3 publication Critical patent/EP2014392A3/fr
Application granted granted Critical
Publication of EP2014392B1 publication Critical patent/EP2014392B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B22C1/18—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
    • B22C1/186—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 contaming ammonium or metal silicates, silica sols
    • B22C1/188—Alkali metal silicates
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening

Definitions

  • the invention relates to a molding material mixture for foundry purposes, consisting of molding sand, caustic soda, alkali-silicate-based binders and aggregates and a molding for foundry purposes, prepared using the molding material mixture.
  • the invention also relates to a method for producing a molded article.
  • Formstoffmischept of the type mentioned are for example from the DE 102004042535 A1 (AS LÜNGEN GmbH) known.
  • the binder used is an alkali water glass in combination with a particulate metal oxide, for example silica, alumina, titania or zinc oxide, in order to improve the strength of casting molds both immediately after shaping and curing and after storage and increased air humidity.
  • the particle size of the metal oxides is preferably less than 300 microns, according to the examples, the sieve residue on a sieve with a mesh size of 63 microns less than 10% by weight, preferably less than 8% by weight.
  • U.S. Pat US 5,641,015 Another method for producing molding mixtures which is intended to achieve high strength in combination with a polyphosphate or borate binder is disclosed in U.S. Pat US 5,641,015 described.
  • column 4, line 39 of the US patent the release of water is mentioned as a result of the drying of polyphosphate and borate-containing binders, which is to be absorbed by the addition of ultrafine silica.
  • the ultrafine silica consists of porous primary particles produced by a precipitation process with grain sizes between 10 and 60 nm, which agglomerate to secondary particles with a particle size of several ⁇ m (column 3, lines 64-66 of the US patent).
  • An inorganic binder system for molding materials is in the EP 1095719B1 described.
  • the flowability can be improved by adding 8-10% by weight of silicone oil with respect to the binder. This improvement was accompanied by a higher moisture content of the core sand.
  • Another important parameter is the progress of curing and the reduction of sensitivity to humidity.
  • the main quality feature is the surface quality of the casting achievable with the molding material mixture.
  • the known processes are not sufficiently stable under the conditions prevailing in mass production, so that again and again high reject rates and unacceptable additional costs result from reworking.
  • As a yardstick for the assessment of the surface quality the determination of the area fraction of sand deposits on the cast part has proven itself.
  • the drying process has an outstanding influence on the formation of the roughness on the surfaces of the moldings.
  • it is necessary to influence the distribution of the mountain and valley structure in such a way that a relief structure arises which has a height-depth difference ratio of at most 300 nm.
  • both thermal drying and microwave drying into consideration, with very good storage capabilities, especially without microwave drying were achieved even under extreme storage conditions at humidities above 78% and storage temperatures of more than 33 ° C.
  • the binder layer present on the particles in the molding material mixture shrinks to form a substructure of mountains and valleys.
  • a morphology of the substructure is formed, which is characterized by a height-depth difference of max. 300 nm, caused by cracking during the two-stage shrinking process.
  • energy is introduced directly into the moist binder shell.
  • the resulting hardening of the binder cover (surface) leads by the subsequent thermal drying to crack formation in the nano range (substructure).
  • the fluidity is given as GF-flowability, the determination was carried out according to Brunhuber, 16th edition, page 352/353.
  • test specimens standard test specimens measuring 22.5 ⁇ 22.5 ⁇ 180 mm were produced and subjected to the respective experimental conditions.
  • a quartz sand-based molding material mixture could be produced, which far exceeds the properties of the known products in terms of flowability, flexural strength and curing, if used as aggregate the two particle size classifications mentioned in claim 1 become.
  • the micrometer-sized, amorphous SiO 2 spheres are intended to allow the individual molding sand grains to be spaced apart from each other and to allow them to slide off relative to one another in a facilitated manner.
  • This "skating effect" was confirmed by flowability measurements, for example by the drastically sinking stirring resistance during the introduction of the suspension composed of two different grain classifications according to the invention in a wing mixer.
  • the power consumption of the wing mixer decreased by more than 50%, while the effect without surcharge was below 10%, based on the current consumption before addition.
  • the dosing order of the individual components and their mixing time must be taken into account.
  • the dosing order is: 1.
  • the quartz sand is mixed with caustic soda.
  • An alkali silicate binder is added.
  • the addition of suspension according to the invention with NanoSiO 2 and MikroSiO 2 plus water is added to the basic mixture.
  • the mixing time depends on the type of mixing unit used and should be determined experimentally. In this case, the minimum required duration for the mixture is the respectively desired state (homogenization / uniform distribution).
  • masterbatch indicates a mixture of foundry sand, NaOH and alkali silicate binder in varying composition.
  • Basic mixture of a classic binder system Halterner molding sand, determined according to Brunhuber p. 400 NaOH 0.20% Alkali silicate binder 1.80% GF flowability 73% additive: - GF flowability determined according to Brunhuber p.
  • FIG. 1 graphically reproduces the listed results. The comparison of the test results clearly shows that the suspension causes an improvement in flowability. In addition, it becomes clear that the addition of the equivalent amount of water from the suspension has no influence on the flowability.
  • FIG. 7 illustrates that the flowability (after GF) of the core sand increases by the inventive addition of present in 2 grain classifications SiO 2 balls.
  • the microSiO 2 spheres are kept at a distance by the NanoSiO 2 spheres and allow the so-called “roller skate effect", ie a rolling of the sand grains through the MikroSiO 2 spheres arranged between them
  • the determined bending strengths are in Fig. 2 graphically illustrated.
  • the comparison of the flexural strength of a core sand base mixture without additive C and the flexural strength of a core sand base mixture containing the additive C clearly shows that with a surcharge according to the invention a 3 increased flexural strength.
  • this time difference also does not matter, i. the strength of all three test bars are approximately equal.
  • test bars provided with the additive C are examined, it is found that the bending strength increases steadily during the test procedure (from the first to the second test bar).
  • the molding material mixtures were transferred into the storage bunker of a hot box core shooter of the company Rölperwerk foundry machines, the mold was heated to 180 ° C.
  • the molding material mixtures were introduced into the mold by means of compressed air (5 bar) and remained in the mold for a further 35 seconds.
  • the mold was opened and the molding was removed. In order to achieve the maximum strength, the molding is post-dried in the microwave. Subsequently, the casting was poured off in open hand casting.
  • the molding was removed and the casting surface was evaluated for the type and amount of sand buildup.
  • FIG. 8 illustrates the molding used to make the casting used here.
  • the percentages of the sand adhesions relate to the outer surface in the region of the bulged casting region R, which is formed as a continuously curved bulge R in the molding.
  • FIG. 6 gives the test results graphically.
  • a significantly improved casting surface is achieved in comparison to the base mixture according to Ex. A) 1, according to US '015 (amorphous SiO 2 spheres constructed from nanoparticles) and according to DE' 535 (amorphous, synthetic silicic acid in spherical form).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (7)

  1. Mélange de matières de moulage pour la fonderie, composé de sable de moulage, d'hydroxyde de sodium, de liant à base de silicate alcalin et agrégats, caractérisé en ce que les particules de sable de moulage présentent une grosseur de grain de 0,1 - 1 mm, que le mélange de matières de moulage contient 0,1 - 10 % en poids d'hydroxyde de sodium par rapport au poids du sable, sachant que l'hydroxyde de sodium présente une concentration de 20 à 40% en poids, que le mélange de matières de moulage contient 0,1 - 5 % de liant à base de silicate alcalin avec une part de matière solide de 20 - 70%, que le mélange de matières de moulage contient en tant qu'agrégat 0,1 - 3 % en poids d'une suspension avec une part de matière solide comprise entre 30 - 70% de SiO2 amorphe, sphérique, sachant que le SiO2 amorphe, sphérique est contenu dans deux classifications de grosseur de grain dans la suspension, avec un première classification de grosseur de grains A, contenant des particules SiO2 avec une grosseur de grain comprise entre 1-5 micromètres et une deuxième classification de grosseur de grains B, contenant des particules SiO2 avec un grosseur de grains entre 0,01 et 0,05 micromètres et sachant que pour la part de volume des deux classes de grosseur de grain A, B, la règle de répartition s'appliquant est la suivante :
    de 0,8 à 1,0 jusqu'à 1,2 à 1.
  2. Lopin pour fonderie, fabriqué avec un mélange de matières de moulage selon revendication 1, caractérisé en ce que la superficie du grain de sable de moulage individuel présente dans le lopin une structure primaire de particules de SiO2 avec une grosseur de grain comprise entre 1-5 micromètres, dans le cas desquelles les billes de SiO2 amorphes, de la taille du micromètre, espacent les grains de sable individuels les uns des autres et ensuite caractérisé par une substructure de particules SiO2 avec une grosseur de grain comprise entre 0,01 - 0,05 micromètres, qui sont réparties dans une couche de liant d'une épaisseur de 0,5 - 2 micromètres répartie de manière uniforme sur des grains de sable de moulage, sachant que les billes de SiO2 de taille de nanomètre forment des élévations et des creux de jusqu'à 300 nanomètres de hauteur et de profondeur, contiguës les uns par rapport aux autres.
  3. Procédé pour la fabrication d'un lopin selon la revendication précédente, caractérisé en ce que le sable de moulage est présenté, mélangé avec l'hydroxyde de sodium et dilué avec le liant à base de silicate alcalin, puis le liant est réparti régulièrement et de manière homogène sur tous les grains de sable de moulage en tant qu'enveloppe de liant, un mélange de particules SiO2 avec deux classifications de grosseur de grains est intégré dans l'enveloppe de liant et le mélange de matières de moulage est séché pour former le lopin, sachant que l'enveloppe de liant rétrécie lors du séchage et forme dans cette situation une structure de rugosité avec 300 nanomètres maximum de différence de hauteur.
  4. Procédé selon revendication 3, caractérisé en ce que de 0,10 à 0,30% d'hydroxyde de sodium est mélangé avec le sable de moulage, puis de 1 à 4% de liant à base de silicate alcalin est ajouté à cela, et le liant est réparti de manière régulière et homogène sur les grains de sable de moulage sous la forme d'une enveloppe de liant d'une épaisseur de 0,5 à 2 micromètres.
  5. Procédé selon l'une des revendications 3 à 4, caractérisé en ce que l'enveloppe de liant rétrécie de 50 à 70% en volume durant le séchage.
  6. Procédé selon l'une des revendications 3 à 5, caractérisé en ce que le séchage s'effectue physiquement, sachant que l'enveloppe de liant rétrécie de 40% à 60% en volume et que le rétrécissement résiduel a lieu thermiquement.
  7. Procédé selon l'une des revendications précédentes 3 à 6, caractérisé en ce que le séchage a lieu dans un micro-ondes.
EP08007906A 2007-06-12 2008-04-24 Mélange de matière à mouler, pièce brute pour des besoins de fonderie et procédé de fabrication d'une pièce brute Revoked EP2014392B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200830356T SI2014392T1 (sl) 2007-06-12 2008-04-24 Zmes materiala za ulivanje, oblikovanec za livarske namene in postopek izdelave oblikovanca
PL08007906T PL2014392T3 (pl) 2007-06-12 2008-04-24 Mieszanka materiału formierskiego, kształtka formowana do celów odlewniczych i sposób wytwarzania kształtki formowanej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007027577A DE102007027577A1 (de) 2007-06-12 2007-06-12 Formstoffmischung, Formling für Gießereizwecke und Verfahren zur Herstellung eines Formlings

Publications (3)

Publication Number Publication Date
EP2014392A2 EP2014392A2 (fr) 2009-01-14
EP2014392A3 EP2014392A3 (fr) 2010-07-21
EP2014392B1 true EP2014392B1 (fr) 2011-06-01

Family

ID=39830346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08007906A Revoked EP2014392B1 (fr) 2007-06-12 2008-04-24 Mélange de matière à mouler, pièce brute pour des besoins de fonderie et procédé de fabrication d'une pièce brute

Country Status (19)

Country Link
US (1) US8006745B2 (fr)
EP (1) EP2014392B1 (fr)
JP (1) JP4719248B2 (fr)
KR (1) KR101027030B1 (fr)
CN (1) CN101323008B (fr)
AR (1) AR066992A1 (fr)
AT (1) ATE511419T1 (fr)
AU (1) AU2008202587B2 (fr)
BR (1) BRPI0803387A2 (fr)
CA (1) CA2631908C (fr)
DE (1) DE102007027577A1 (fr)
DK (1) DK2014392T3 (fr)
ES (1) ES2365827T3 (fr)
MX (1) MX2008007515A (fr)
NZ (1) NZ568939A (fr)
PL (1) PL2014392T3 (fr)
RU (1) RU2385201C2 (fr)
SI (1) SI2014392T1 (fr)
UA (1) UA88412C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159762A1 (fr) 2012-04-26 2013-10-31 Ask Chemicals Gmbh Procédé pour produire des moules et des noyaux pour la coulée de métaux ainsi que moules et noyaux produits au moyen de ce procédé
WO2014059969A2 (fr) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Mélanges de matière à mouler à base de liant inorganique et procédé de production de moules et de noyaux pour la coulée de métaux
WO2014059967A2 (fr) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Mélanges de matière à mouler à base de liant inorganique et procédé de production de moules et de noyaux pour la coulée de métaux
DE102012020510A1 (de) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023644A1 (de) * 2009-07-01 2011-01-05 Ksm Castings Gmbh Verfahren zum Gießen eines Materials, Verwendung des Verfahrens, Gießform zur Durchführung des Verfahrens und nach dem Verfahren bzw. in der Gießform hergestellte Gegenstände sowie Kern zum Einlegen in eine solche Gießform
KR101199111B1 (ko) * 2009-10-30 2012-11-09 현대자동차주식회사 주물용 중자 재료 혼합물, 주물용 중자 제조방법 및 이를 이용하여 제조된 주물용 중자
US8974587B2 (en) 2010-11-15 2015-03-10 Honda Motor Co., Ltd. Casting sand core composition
JP4920794B1 (ja) * 2011-11-02 2012-04-18 株式会社ツチヨシ産業 鋳型材料及び鋳型並びに鋳型の製造方法
DE102013106276A1 (de) * 2013-06-17 2014-12-18 Ask Chemicals Gmbh Lithiumhaltige Formstoffmischungen auf der Basis eines anorganischen Bindemittels zur Herstellung von Formen und Kernen für den Metallguss
ES2628255T3 (es) 2013-10-19 2017-08-02 Peak Deutschland Gmbh Procedimiento para producir machos perdidos o piezas de molde para la producción de piezas fundidas.
DE102013111626A1 (de) * 2013-10-22 2015-04-23 Ask Chemicals Gmbh Formstoffmischungen enthaltend eine oxidische Bor-Verbindung und Verfahren zur Herstellung von Formen und Kernen
DE102014106178A1 (de) * 2014-05-02 2015-11-05 Ask Chemicals Gmbh Verfahren zum schichtweisen Aufbau von Körpern umfassend feuerfesten Formgrundstoff und Resole und Formen oder Kerne hergestellt nach diesem Verfahren
DE102014109598A1 (de) * 2014-07-09 2016-01-14 Tenedora Nemak, S.A. De C.V. Gießkern, Verwendung eines Gießkerns und Verfahren zur Herstellung eines Gießkerns
CN104174810A (zh) * 2014-08-29 2014-12-03 无锡柯马机械有限公司 一种铸造工艺
CN104384437A (zh) * 2014-11-17 2015-03-04 无锡市百顺机械厂 一种铸造工艺
KR101527909B1 (ko) 2014-12-16 2015-06-10 한국생산기술연구원 주조용 무기 바인더 조성물
KR101614401B1 (ko) * 2015-03-10 2016-04-21 (주)피알테크 주물사용 무기 바인더 조성물
DE102016110752A1 (de) 2016-06-10 2017-12-14 Dr Axion Co., Ltd. Bindemittelzusammensetzung zum vergiessen
EP3501690A1 (fr) * 2017-12-20 2019-06-26 Imertech Sas Procédé de fabrication d'articles de fonderie de matériau réfractaire a base de particules, et produit fabriqué par ce procédé
DE102019113008A1 (de) 2019-05-16 2020-11-19 HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung Verwendung eines partikulären Materials umfassend ein teilchenförmiges synthetisches amorphes Siliciumdioxid als Additiv für eine Formstoffmischung, entsprechende Verfahren, Mischungen und Kits
DE102019123372A1 (de) 2019-08-30 2021-03-04 Bindur Gmbh Warmhärtender Formstoff zur Herstellung von Kernen und Formen im Sandformverfahren
DE102019123374A1 (de) 2019-08-30 2021-03-04 Bindur Gmbh Verfahren zur Herstellung von Kernen und Formen im Sandformverfahren
CN114101593B (zh) * 2021-11-26 2023-08-01 陕西科技大学 一种高溃散、可回收氧化硅基陶瓷型芯及其制备方法和应用

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380945A (en) * 1942-07-11 1945-08-07 Austenal Lab Inc Refractory mold
US4316744A (en) * 1973-07-17 1982-02-23 E. I. Du Pont De Nemours And Company High ratio silicate foundry sand binders
US4162238A (en) * 1973-07-17 1979-07-24 E. I. Du Pont De Nemours And Company Foundry mold or core compositions and method
SU807542A1 (ru) * 1979-07-05 1984-04-15 Всесоюзный Проектно-Технологический Институт Литейного Производства Смесь дл изготовлени литейных форм и стержней
SU1072980A1 (ru) * 1982-04-07 1984-02-15 Всесоюзный Проектно-Технологический Институт Литейного Производства Способ получени силикатного св зующего
SU1217551A1 (ru) * 1984-01-13 1986-03-15 Всесоюзный Проектно-Технологический Институт Литейного Производства Способ получени силикатного св зующего преимущественно дл изготовлени литейных форм и стержней
SU1243883A1 (ru) * 1985-01-02 1986-07-15 Всесоюзный Проектно-Технологический Институт Литейного Производства Способ получени силикатного св зующего
GB9226815D0 (en) 1992-12-23 1993-02-17 Borden Uk Ltd Improvements in or relating to water dispersible moulds
DE29925011U1 (de) 1999-10-26 2008-10-02 Minelco Gmbh Giessereikern-Bindemittelsystem
DE20321077U1 (de) * 2003-05-09 2005-11-03 Hydro Aluminium Deutschland Gmbh Formstoff und daraus hergestelltes Formteil für eine Gießform
DE102004014573A1 (de) * 2004-03-25 2005-10-27 BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG Verfahren zur Herstellung einer Muffel für den Fein- oder Modellguss, Verfahren zum Herstellen eines metallischen, keramischen oder glaskeramischen Guss- oder Pressobjekts und Kit zur Herstellung eines solchen Objekts
DE102004017892B3 (de) * 2004-04-13 2005-11-03 Daimlerchrysler Ag Zerstörbarer Formkern für den metallischen Guss, Herstellung und Verwendung
CN1721103A (zh) * 2004-07-17 2006-01-18 王继启 铸造用型砂粘溃剂
DE102004042535B4 (de) 2004-09-02 2019-05-29 Ask Chemicals Gmbh Formstoffmischung zur Herstellung von Gießformen für die Metallverarbeitung, Verfahren und Verwendung
DE102006036381A1 (de) * 2006-08-02 2008-02-07 Minelco Gmbh Formstoff, Gießerei-Formstoff-Gemisch und Verfahren zur Herstellung einer Form oder eines Formlings
CN100515600C (zh) * 2006-11-20 2009-07-22 包正权 一种热覆膜砂叠型铸造工艺

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013159762A1 (fr) 2012-04-26 2013-10-31 Ask Chemicals Gmbh Procédé pour produire des moules et des noyaux pour la coulée de métaux ainsi que moules et noyaux produits au moyen de ce procédé
DE102012103705A1 (de) 2012-04-26 2013-10-31 Ask Chemicals Gmbh Verfahren zur Herstellung von Formen und Kernen für den Metallguss sowie nach diesem Verfahren hergestellte Formen und Kerne
WO2014059969A2 (fr) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Mélanges de matière à mouler à base de liant inorganique et procédé de production de moules et de noyaux pour la coulée de métaux
WO2014059967A2 (fr) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Mélanges de matière à mouler à base de liant inorganique et procédé de production de moules et de noyaux pour la coulée de métaux
DE102012020510A1 (de) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
WO2014059968A2 (fr) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Mélanges de matière à mouler à base de liant inorganique et procédé de production de moules et de noyaux pour la coulée de métaux
DE102012020511A1 (de) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
DE102012020509A1 (de) 2012-10-19 2014-06-12 Ask Chemicals Gmbh Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
KR20150074109A (ko) 2012-10-19 2015-07-01 아에스카 케미컬스 게엠베하 무기 결합제에 기반한 주형 재료 혼합물 및 금속 주조를 위한 주형과 주조 심형의 제조방법
DE102012020510B4 (de) 2012-10-19 2019-02-14 Ask Chemicals Gmbh Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
EP3950168A1 (fr) 2012-10-19 2022-02-09 ASK Chemicals GmbH Melanges de matière à mouler à base de liant inorganique et procédé de production de moules et de noyaux pour la coulee de métaux

Also Published As

Publication number Publication date
SI2014392T1 (sl) 2011-09-30
US8006745B2 (en) 2011-08-30
CN101323008A (zh) 2008-12-17
DK2014392T3 (da) 2011-09-12
NZ568939A (en) 2009-09-25
BRPI0803387A2 (pt) 2009-08-04
JP4719248B2 (ja) 2011-07-06
ATE511419T1 (de) 2011-06-15
RU2008123122A (ru) 2009-12-20
RU2385201C2 (ru) 2010-03-27
EP2014392A3 (fr) 2010-07-21
AU2008202587A1 (en) 2009-01-08
ES2365827T3 (es) 2011-10-11
AR066992A1 (es) 2009-09-23
DE102007027577A1 (de) 2008-12-18
EP2014392A2 (fr) 2009-01-14
PL2014392T3 (pl) 2011-10-31
US20080314549A1 (en) 2008-12-25
CA2631908A1 (fr) 2008-12-12
KR20080109624A (ko) 2008-12-17
CN101323008B (zh) 2012-11-21
KR101027030B1 (ko) 2011-04-11
UA88412C2 (ru) 2009-10-12
AU2008202587B2 (en) 2010-01-28
MX2008007515A (es) 2009-03-04
JP2008307604A (ja) 2008-12-25
CA2631908C (fr) 2011-07-12

Similar Documents

Publication Publication Date Title
EP2014392B1 (fr) Mélange de matière à mouler, pièce brute pour des besoins de fonderie et procédé de fabrication d'une pièce brute
EP1884300B1 (fr) Matière à mouler, mélange de fonderie et de matière à mouler et procédé destiné à la fabrication d'une forme et ou d'une pièce brute
EP3010669B1 (fr) Procédé de fabrication des mélanges de matières à mouler contenant du lithium, à base d'un liant inorganique, destinés à la production de moules et de noyaux pour la coulée de métaux
DE102012020510B4 (de) Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
DE69129860T2 (de) Verbesserungen bezüglich wasserdispergierbarer formen
EP2392424B1 (fr) Procédé de fabrication de moules pour le traitement du métal, moules fabriqués selon ce procédé et leur utilisation
EP2858770B1 (fr) Mélanges de matières contenant du sulfate de barium, pour la fabrication de moules
EP2916976B1 (fr) Procédé permettant de produire des noyaux perdus ou des parties de moule pour la production de pièces moulées
EP1934001B1 (fr) Melanges de materiau moulable contenant du verre au borosilicate
EP2760607B1 (fr) Matières de revêtement pour moules et noyaux inorganiques et leur utilisation, et procédé d'enduisage
EP3137245B1 (fr) Mélanges de matériaux de moulage contenant des résols et du dioxyde de silicium amorphe, moules et noyaux fabriqués à partir de ces mélanges et procédé pour les fabriquer
DE102012020509A1 (de) Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
DE102012020511A1 (de) Formstoffmischungen auf der Basis anorganischer Bindemittel und Verfahren zur Herstellung von Formen und Kerne für den Metallguss
DE102012103705A1 (de) Verfahren zur Herstellung von Formen und Kernen für den Metallguss sowie nach diesem Verfahren hergestellte Formen und Kerne
EP2163328A1 (fr) Sable de noyau ou de moule revêtu par et/ou mélangés avec des silicates de potassium ayant une teneur en eau comprise entre environ 0,25 poids -% jusqu'à environ 0,9 poids -%
EP2836318A2 (fr) Noyaux à base de sel, procédé de fabrication de ces noyaux et leur utilisation
EP2496372A2 (fr) Noyaux à base de sel, procédé de fabrication de ces noyaux et leur utilisation
EP2308614B1 (fr) Aérosand résistant au vert
WO2020253917A1 (fr) Moules de fonderie poteyés pouvant être obtenus à partir d'un mélange de matières à mouler contenant un liant inorganique et des composés phosphatés et des composés d'oxyde de bore et procédé pour les fabriquer et leur utilisation
EP1228128A1 (fr) Systeme de liant a base de resol, contenant de l'aluminium et du bore
DE102020119013A1 (de) Verfahren zur Herstellung eines Artikels zur Verwendung in der Gießereiindustrie, entsprechende Form, Kern, Speiserelement oder Formstoffmischung sowie Vorrichtungen und Verwendungen
EP2941327A1 (fr) Procédé de fabrication d'un sable pour noyaux et/ou moules de fonderie
EP1832357A1 (fr) Forme ou pièce brute, mélange de matériaux de formage de fonderie et son procédé de fabrication
EP3551360B1 (fr) Liant résol alcalin à fluidité améliorée
DE1508913C (de) Kokillenauskleidung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MINELCO GMBH

17P Request for examination filed

Effective date: 20091211

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008003732

Country of ref document: DE

Effective date: 20110714

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110601

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20110601

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 9711

Country of ref document: SK

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2365827

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20111011

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110902

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E012129

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111001

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20111003

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ASK CHEMICALS GMBH

Effective date: 20120301

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502008003732

Country of ref document: DE

Effective date: 20120301

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BG

Payment date: 20120423

Year of fee payment: 5

Ref country code: HU

Payment date: 20120419

Year of fee payment: 5

Ref country code: LT

Payment date: 20120412

Year of fee payment: 5

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: RO

Payment date: 20120413

Year of fee payment: 5

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110601

REG Reference to a national code

Ref country code: LT

Ref legal event code: MM4D

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130424

Ref country code: HU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120424

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 511419

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130424

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008003732

Country of ref document: DE

Representative=s name: HASELTINE LAKE KEMPNER LLP, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502008003732

Country of ref document: DE

Representative=s name: HASELTINE LAKE LLP, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20170427

Year of fee payment: 10

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: IMERYS METALCASTING GERMANY GMBH

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20180427

Year of fee payment: 11

Ref country code: DK

Payment date: 20180426

Year of fee payment: 11

Ref country code: SK

Payment date: 20180404

Year of fee payment: 11

Ref country code: ES

Payment date: 20180503

Year of fee payment: 11

Ref country code: DE

Payment date: 20180427

Year of fee payment: 11

Ref country code: FI

Payment date: 20180427

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20180404

Year of fee payment: 11

Ref country code: FR

Payment date: 20180425

Year of fee payment: 11

Ref country code: IT

Payment date: 20180423

Year of fee payment: 11

Ref country code: SI

Payment date: 20180405

Year of fee payment: 11

Ref country code: TR

Payment date: 20180406

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20180427

Year of fee payment: 11

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170808

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R064

Ref document number: 502008003732

Country of ref document: DE

Ref country code: DE

Ref legal event code: R103

Ref document number: 502008003732

Country of ref document: DE

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20190507

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Effective date: 20190507

REG Reference to a national code

Ref country code: SK

Ref legal event code: MC4A

Ref document number: E 9711

Country of ref document: SK

Effective date: 20190507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190425

REG Reference to a national code

Ref country code: AT

Ref legal event code: MA03

Ref document number: 511419

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190425

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190430