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EP2014392A3 - Moulding material mixture, moulded blank for moulding purposes and method for producing a moulded blank - Google Patents

Moulding material mixture, moulded blank for moulding purposes and method for producing a moulded blank Download PDF

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Publication number
EP2014392A3
EP2014392A3 EP08007906A EP08007906A EP2014392A3 EP 2014392 A3 EP2014392 A3 EP 2014392A3 EP 08007906 A EP08007906 A EP 08007906A EP 08007906 A EP08007906 A EP 08007906A EP 2014392 A3 EP2014392 A3 EP 2014392A3
Authority
EP
European Patent Office
Prior art keywords
particle size
material mixture
molding
weight
moulded blank
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
EP08007906A
Other languages
German (de)
French (fr)
Other versions
EP2014392B1 (en
EP2014392A2 (en
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(A3) "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/en
Priority to PL08007906T priority patent/PL2014392T3/en
Publication of EP2014392A2 publication Critical patent/EP2014392A2/en
Publication of EP2014392A3 publication Critical patent/EP2014392A3/en
Application granted granted Critical
Publication of EP2014392B1 publication Critical patent/EP2014392B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

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)

Abstract

Die Erfindung betrifft eine Formstoffmischung für Gießereizwecke, bestehend aus Formsand, Natronlauge, Binder auf Alkali-Silikat-Basis und Zuschlägen, wobei die Formsandpartikel eine Korngröße von 0,1 - 1 mm aufweisen. Die Formstoffmischung enthält 0,1 - 10 Gewichts% Natronlauge bezogen auf das Sandgewicht und 0,1 - 5% Binder auf Alkali-Silikat-Basis mit einem Feststoffanteil von 20 - 70%, wobei die Natronlauge eine Konzentration von 20 bis 40 Gewichts% aufweist und wobei das Formstoffgemisch als Zuschlag 0,1 - 3 Gewichts% einer Suspension mit einem Feststoffanteil zwischen 30 - 70% an amorphem, kugelförmigem SiO2 enthält. Das amorphe, kugelförmige SiO2 ist in zwei Korngrößenklassierungen in der Suspension enthalten mit einer ersten Korngrößenklassierung A, beinhaltend SiO2 -Partikel mit einer Korngröße zwischen 1 - 5 Mikrometern und einer zweiten Korngrößenklassierung B, beinhaltend SiO2 -Partikel mit einer Korngröße zwischen 0,01 - 0,05 Mikrometern. Für die Volumenanteile der beiden Korngrößenbereiche A, B gilt folgende Verteilungsregel: 0,8 zu 1,0 bis 1,2 zu 1. Weiterhin betrifft die Erfindung einen Formling für Gießereizwecke sowie ein Verfahren zur Herstellung des Formlings.The invention relates to a molding material mixture for foundry purposes, consisting of molding sand, sodium hydroxide, binders based on alkali silicate and aggregates, wherein the molding sand particles have a particle size of 0.1 - 1 mm. The molding material mixture contains 0.1-10% by weight of sodium hydroxide solution based on the weight of sand and 0.1-5% of alkali-silicate-based binder with a solids content of 20-70%, the sodium hydroxide solution having a concentration of 20% to 40% by weight and wherein the molding material mixture as a supplement 0.1-3% by weight of a suspension having a solids content between 30 - 70% of amorphous, spherical SiO 2 . The amorphous, spherical SiO 2 is contained in the particle size classification in the suspension with a first particle size classification A, including SiO 2 particles with a particle size between 1 and 5 micrometers and a second particle size classification B, including SiO 2 particles with a particle size between 0, 01 - 0.05 microns. For the volume fractions of the two particle size ranges A, B the following distribution rule applies: 0.8 to 1.0 to 1.2 to 1. Furthermore, the invention relates to a molding for foundry purposes and to a process for the production of the molding.

EP08007906A 2007-06-12 2008-04-24 Moulding material mixture, moulded blank for moulding purposes and method for producing a moulded blank Revoked EP2014392B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200830356T SI2014392T1 (en) 2007-06-12 2008-04-24 Moulding material mixture, moulded blank for moulding purposes and method for producing a moulded blank
PL08007906T PL2014392T3 (en) 2007-06-12 2008-04-24 Moulding material mixture, moulded blank for moulding purposes and method for producing a moulded blank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007027577A DE102007027577A1 (en) 2007-06-12 2007-06-12 Molding material mixture, molded article for foundry purposes and method for producing a molded article

Publications (3)

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

Family

ID=39830346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08007906A Revoked EP2014392B1 (en) 2007-06-12 2008-04-24 Moulding material mixture, moulded blank for moulding purposes and method for producing a moulded blank

Country Status (19)

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

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DE102010023644A1 (en) * 2009-07-01 2011-01-05 Ksm Castings Gmbh Method for casting a material, use of the method, casting mold for carrying out the method and articles produced by the method or in the casting mold and core for insertion into such a casting mold
KR101199111B1 (en) * 2009-10-30 2012-11-09 현대자동차주식회사 Core material mixture for casting, method for manufacturing core for casting and core for casting using the same
US8974587B2 (en) 2010-11-15 2015-03-10 Honda Motor Co., Ltd. Casting sand core composition
JP4920794B1 (en) * 2011-11-02 2012-04-18 株式会社ツチヨシ産業 Mold material, mold and mold manufacturing method
DE102012103705A1 (en) 2012-04-26 2013-10-31 Ask Chemicals Gmbh Method for producing molds and cores for casting metal, and molds and cores produced by this method
DE102012020511A1 (en) 2012-10-19 2014-04-24 Ask Chemicals Gmbh Forming substance mixtures based on inorganic binders and process for producing molds and cores for metal casting
DE102012020510B4 (en) 2012-10-19 2019-02-14 Ask Chemicals Gmbh Forming substance mixtures based on inorganic binders and process for producing molds and cores for metal casting
DE102012020509A1 (en) 2012-10-19 2014-06-12 Ask Chemicals Gmbh Forming substance mixtures based on inorganic binders and process for producing molds and cores for metal casting
DE102013106276A1 (en) * 2013-06-17 2014-12-18 Ask Chemicals Gmbh Lithium-containing molding material mixtures based on an inorganic binder for the production of molds and cores for metal casting
ES2628255T3 (en) 2013-10-19 2017-08-02 Peak Deutschland Gmbh Procedure to produce lost males or mold pieces for the production of castings.
DE102013111626A1 (en) * 2013-10-22 2015-04-23 Ask Chemicals Gmbh Mixtures of molding materials containing an oxidic boron compound and methods for producing molds and cores
DE102014106178A1 (en) * 2014-05-02 2015-11-05 Ask Chemicals Gmbh Process for the layered construction of bodies comprising refractory base molding material and resoles and molds or cores produced by this process
DE102014109598A1 (en) * 2014-07-09 2016-01-14 Tenedora Nemak, S.A. De C.V. Casting core, use of a foundry core and method of making a foundry core
CN104174810A (en) * 2014-08-29 2014-12-03 无锡柯马机械有限公司 Casting process
CN104384437A (en) * 2014-11-17 2015-03-04 无锡市百顺机械厂 Foundry technology
KR101527909B1 (en) 2014-12-16 2015-06-10 한국생산기술연구원 inorganic binder composition for castings
KR101614401B1 (en) * 2015-03-10 2016-04-21 (주)피알테크 Inorganic binder composition for molding sand
DE102016110752A1 (en) 2016-06-10 2017-12-14 Dr Axion Co., Ltd. BINDER COMPOSITION FOR FORGING
EP3501690A1 (en) * 2017-12-20 2019-06-26 Imertech Sas Method of making particulate refractory material foundry articles, and product made by such method
DE102019113008A1 (en) 2019-05-16 2020-11-19 HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung Use of a particulate material comprising a particulate synthetic amorphous silicon dioxide as an additive for a molding material mixture, corresponding processes, mixtures and kits
DE102019123372A1 (en) 2019-08-30 2021-03-04 Bindur Gmbh Thermosetting molding material for the production of cores and molds in the sand molding process
DE102019123374A1 (en) 2019-08-30 2021-03-04 Bindur Gmbh Process for the production of cores and molds using the sand molding process
CN114101593B (en) * 2021-11-26 2023-08-01 陕西科技大学 A high-collapse, recyclable silica-based ceramic core and its preparation method and application

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Also Published As

Publication number Publication date
SI2014392T1 (en) 2011-09-30
US8006745B2 (en) 2011-08-30
CN101323008A (en) 2008-12-17
DK2014392T3 (en) 2011-09-12
NZ568939A (en) 2009-09-25
BRPI0803387A2 (en) 2009-08-04
JP4719248B2 (en) 2011-07-06
ATE511419T1 (en) 2011-06-15
RU2008123122A (en) 2009-12-20
RU2385201C2 (en) 2010-03-27
AU2008202587A1 (en) 2009-01-08
ES2365827T3 (en) 2011-10-11
EP2014392B1 (en) 2011-06-01
AR066992A1 (en) 2009-09-23
DE102007027577A1 (en) 2008-12-18
EP2014392A2 (en) 2009-01-14
PL2014392T3 (en) 2011-10-31
US20080314549A1 (en) 2008-12-25
CA2631908A1 (en) 2008-12-12
KR20080109624A (en) 2008-12-17
CN101323008B (en) 2012-11-21
KR101027030B1 (en) 2011-04-11
UA88412C2 (en) 2009-10-12
AU2008202587B2 (en) 2010-01-28
MX2008007515A (en) 2009-03-04
JP2008307604A (en) 2008-12-25
CA2631908C (en) 2011-07-12

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