WO2005058527A1 - Wasserlösliche salzkerne - Google Patents
Wasserlösliche salzkerne Download PDFInfo
- Publication number
- WO2005058527A1 WO2005058527A1 PCT/DE2004/002718 DE2004002718W WO2005058527A1 WO 2005058527 A1 WO2005058527 A1 WO 2005058527A1 DE 2004002718 W DE2004002718 W DE 2004002718W WO 2005058527 A1 WO2005058527 A1 WO 2005058527A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- soluble salt
- mixture
- inorganic
- phosphate
- Prior art date
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
- B22C1/185—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
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/105—Salt cores
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/2419—Fold at edge
Definitions
- the present invention relates to water-soluble salt cores with the features of the preamble of claim 1.
- the object of the present invention is to avoid the problems described by using an alternative binder and to provide salt cores which have sufficient tensile strength even at sintering temperatures of from 200 ° C. and which do not outgas at temperatures of below 700 ° C. and which can be used with all known types of casting.
- This object is achieved with the features mentioned in claim 1.
- Advantageous embodiments and further developments of the invention and in particular a method according to the invention are included in the further claims.
- water-soluble salt cores which are produced by compressing a mixture of water-soluble salts and a binder under pressure and then sintering are characterized in that the binder is an inorganic phosphate or a mixture of inorganic phosphates in a proportion of between 0.5 and 10% by weight. % of the mixture is.
- the mixture may contain a portion of an inorganic borate.
- a high proportion of binder gives a rather rough surface at low pressure, a low proportion of binder at high pressure gives a smooth surface.
- a sintering temperature 200 ° C tensile strengths of between 1 and 3 kg were achieved, at 400 ° C between 2 and 3 kg.
- the mixture contains a proportion of between 0 and 10% by weight of a release agent such as graphite.
- the inorganic phosphate is, for example, a monoaluminum phosphate, a boron phosphate or a sodium polyphosphate.
- the heat treatment takes place at temperatures below 730 ° C so that there is no change in the state of aggregate of the salt cores, preferably at temperatures between 200 ° C and 650 ° C.
- the tensile strength was determined by means of a pneumatic spring balance with a drag pointer, the drag pointer giving a kilogram value when the clamped test piece broke.
- the costly process of pre-heating in the foundry can be dispensed with, the salt cores can be used automatically at relatively low temperatures and there is no outgassing.
- the heat treatment also takes place at temperatures significantly below the sintering temperature (730 ° C.), which reduces the energy requirement in the core production.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT04802923T ATE508817T1 (de) | 2003-12-17 | 2004-12-11 | Wasserlösliche salzkerne |
EP04802923A EP1691942B1 (de) | 2003-12-17 | 2004-12-11 | Wasserlösliche salzkerne |
US10/591,198 US20070036941A1 (en) | 2003-12-17 | 2004-12-11 | Water-soluble salt cores |
US13/367,380 US8403028B2 (en) | 2003-12-17 | 2012-02-07 | Water-soluble salt cores |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10359547.3 | 2003-12-17 | ||
DE10359547A DE10359547B3 (de) | 2003-12-17 | 2003-12-17 | Wasserlösliche Salzkerne |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/591,198 A-371-Of-International US20070036941A1 (en) | 2003-12-17 | 2004-12-11 | Water-soluble salt cores |
US13/367,380 Continuation US8403028B2 (en) | 2003-12-17 | 2012-02-07 | Water-soluble salt cores |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005058527A1 true WO2005058527A1 (de) | 2005-06-30 |
Family
ID=34112167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/002718 WO2005058527A1 (de) | 2003-12-17 | 2004-12-11 | Wasserlösliche salzkerne |
Country Status (5)
Country | Link |
---|---|
US (2) | US20070036941A1 (de) |
EP (1) | EP1691942B1 (de) |
AT (1) | ATE508817T1 (de) |
DE (1) | DE10359547B3 (de) |
WO (1) | WO2005058527A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1781433A2 (de) * | 2003-12-17 | 2007-05-09 | KS Aluminium Technologie Aktiengesellschaft | Entfernbarer kern zum metallgiessen und verfahren zur herstellung eines kerns |
WO2010007180A2 (de) * | 2008-07-18 | 2010-01-21 | Ceramtec Ag | Kerne auf der basis von salz und verfahren zu ihrer herstellung |
US8017056B2 (en) | 2006-07-07 | 2011-09-13 | Emil Muller Gmbh | Salt cores for plastic (injection) molding |
EP3024610B1 (de) | 2013-07-24 | 2018-11-21 | Emil Müller GmbH | Salzkerne und generative fertigungsverfahren zur herstellung von salzkernen |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005018614B4 (de) * | 2005-04-21 | 2016-07-28 | Emil Müller GmbH | Verfahren zur Herstellung von wasserlöslichen Salzkernen |
US20090250587A1 (en) * | 2005-09-30 | 2009-10-08 | Kaefer Dieter | Core and a Method for the Production Thereof |
DE102006031532B3 (de) | 2006-07-07 | 2008-04-17 | Emil Müller GmbH | Wasserlöslicher Salzkern mit Funktionsbauteil |
WO2008070314A2 (en) * | 2006-10-26 | 2008-06-12 | Integrated Dna Technologies, Inc. | Fingerprint analysis for a plurality of oligonucleotides |
DE102012022390B3 (de) * | 2012-11-15 | 2014-04-03 | Audi Ag | Verfahren zur kalten Herstellung eines Salzkerns für das Druckgießen |
DE102012022631B3 (de) * | 2012-11-20 | 2014-04-03 | Audi Ag | Verfahren zur Herstellung eines Salzkerns für das Druckgießen mit einer zuvor abgepackten Salzmenge |
DE102013009055B4 (de) | 2013-05-28 | 2018-10-31 | Audi Ag | Werkzeug und Verfahren zur Herstellung von Salzkernen für das Druckgießen von Metallen |
WO2015011233A1 (de) * | 2013-07-24 | 2015-01-29 | Emil Müller GmbH | Salzkerne und generative fertigungsverfahren zur herstellung von salzkernen |
WO2015011232A1 (de) * | 2013-07-24 | 2015-01-29 | Emil Müller GmbH | Salzkerne und generative fertigungsverfahren zur herstellung von salzkernen |
CN104399865B (zh) * | 2014-12-01 | 2016-08-24 | 湖南江滨机器(集团)有限责任公司 | 一种水溶性石墨复合盐芯材料、石墨复合盐芯及其制备方法 |
DE102015223008A1 (de) | 2015-11-21 | 2017-05-24 | H2K Minerals Gmbh | Form, Verfahren zu ihrer Herstellung und Verwendung |
CN107812893A (zh) * | 2017-10-18 | 2018-03-20 | 张国栋 | 一种铸造用浇注盐芯及其制备方法 |
DE102018200607A1 (de) | 2018-01-15 | 2019-07-18 | Reinsicht Gmbh | Verfahren zur Erzeugung von für die Herstellung von Faserverbundkörpern oder Gussteilen aus Metall oder Kunststoff geeigneten Formen und Kernen, bei dem Verfahren einsetzbare Formgrundstoffe und Binder sowie gemäß dem Verfahren hergestellte Formen und Kerne |
US11724306B1 (en) | 2020-06-26 | 2023-08-15 | Triad National Security, Llc | Coating composition embodiments for use in investment casting methods |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1934787A1 (de) | 1969-07-09 | 1971-01-14 | Schmidt Gmbh Karl | Salzkern fuer Giessereizwecke |
GB1274966A (en) * | 1969-05-16 | 1972-05-17 | Schmidt Gmbh Karl | Core for use in foundries and a method of forming cavities in castings |
DE1483641C3 (de) | 1965-06-12 | 1973-10-11 | Karl Schmidt Gmbh, 7107 Neckarsulm | Wasserlösliche Salzkerne |
JPS5536031A (en) * | 1978-09-06 | 1980-03-13 | Hitachi Ltd | Fluid moldable water soluble mold |
SU1639872A1 (ru) * | 1989-01-02 | 1991-04-07 | Всесоюзный Проектно-Технологический Институт Литейного Производства | Смесь дл изготовлени литейных форм и стержней |
US5573055A (en) * | 1990-10-19 | 1996-11-12 | Borden (Uk) Limited | Water dispersible moulds |
DE19525307A1 (de) | 1995-07-12 | 1997-01-16 | Eichenauer Gmbh & Co Kg F | Gießkern für Gießformen |
US5711792A (en) * | 1993-11-30 | 1998-01-27 | Borden Chemical Uk Limited | Foundry binder |
WO2001002112A1 (en) * | 1999-07-06 | 2001-01-11 | Technology Union Co., Ltd. | Disintegrative core for high pressure casting, method for manufacturing the same, and method for extracting the same |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2878539A (en) * | 1956-04-05 | 1959-03-24 | Borden Co | Bonding inorganic granules |
SU1196096A1 (ru) * | 1982-11-15 | 1985-12-07 | Московский ордена Ленина и ордена Трудового Красного Знамени химико-технологический институт им.Д.И.Менделеева | Смесь дл изготовлени водорастворимых стержней |
JPH02213431A (ja) * | 1989-02-13 | 1990-08-24 | Kobe Steel Ltd | SiCウィスカ強化Al合金複合材料 |
US5262100A (en) * | 1990-07-11 | 1993-11-16 | Advanced Plastics Partnership | Method of core removal from molded products |
EP1781433A2 (de) * | 2003-12-17 | 2007-05-09 | KS Aluminium Technologie Aktiengesellschaft | Entfernbarer kern zum metallgiessen und verfahren zur herstellung eines kerns |
-
2003
- 2003-12-17 DE DE10359547A patent/DE10359547B3/de not_active Expired - Fee Related
-
2004
- 2004-12-11 US US10/591,198 patent/US20070036941A1/en not_active Abandoned
- 2004-12-11 AT AT04802923T patent/ATE508817T1/de active
- 2004-12-11 EP EP04802923A patent/EP1691942B1/de not_active Not-in-force
- 2004-12-11 WO PCT/DE2004/002718 patent/WO2005058527A1/de active Application Filing
-
2012
- 2012-02-07 US US13/367,380 patent/US8403028B2/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1483641C3 (de) | 1965-06-12 | 1973-10-11 | Karl Schmidt Gmbh, 7107 Neckarsulm | Wasserlösliche Salzkerne |
GB1274966A (en) * | 1969-05-16 | 1972-05-17 | Schmidt Gmbh Karl | Core for use in foundries and a method of forming cavities in castings |
DE1934787A1 (de) | 1969-07-09 | 1971-01-14 | Schmidt Gmbh Karl | Salzkern fuer Giessereizwecke |
US3764575A (en) | 1969-07-09 | 1973-10-09 | Schmidt Gmbh Karl | Salt core containing synthetic resin and water-glass as binders |
JPS5536031A (en) * | 1978-09-06 | 1980-03-13 | Hitachi Ltd | Fluid moldable water soluble mold |
SU1639872A1 (ru) * | 1989-01-02 | 1991-04-07 | Всесоюзный Проектно-Технологический Институт Литейного Производства | Смесь дл изготовлени литейных форм и стержней |
US5573055A (en) * | 1990-10-19 | 1996-11-12 | Borden (Uk) Limited | Water dispersible moulds |
US5711792A (en) * | 1993-11-30 | 1998-01-27 | Borden Chemical Uk Limited | Foundry binder |
DE19525307A1 (de) | 1995-07-12 | 1997-01-16 | Eichenauer Gmbh & Co Kg F | Gießkern für Gießformen |
WO2001002112A1 (en) * | 1999-07-06 | 2001-01-11 | Technology Union Co., Ltd. | Disintegrative core for high pressure casting, method for manufacturing the same, and method for extracting the same |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 199149, Derwent World Patents Index; Class M22, AN 1991-360091, XP002328854 * |
PATENT ABSTRACTS OF JAPAN vol. 004, no. 072 (M - 013) 27 May 1980 (1980-05-27) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1781433A2 (de) * | 2003-12-17 | 2007-05-09 | KS Aluminium Technologie Aktiengesellschaft | Entfernbarer kern zum metallgiessen und verfahren zur herstellung eines kerns |
US8017056B2 (en) | 2006-07-07 | 2011-09-13 | Emil Muller Gmbh | Salt cores for plastic (injection) molding |
WO2010007180A2 (de) * | 2008-07-18 | 2010-01-21 | Ceramtec Ag | Kerne auf der basis von salz und verfahren zu ihrer herstellung |
WO2010007180A3 (de) * | 2008-07-18 | 2010-06-17 | Ceramtec Ag | Kerne auf der basis von salz und verfahren zu ihrer herstellung |
EP3024610B1 (de) | 2013-07-24 | 2018-11-21 | Emil Müller GmbH | Salzkerne und generative fertigungsverfahren zur herstellung von salzkernen |
Also Published As
Publication number | Publication date |
---|---|
ATE508817T1 (de) | 2011-05-15 |
US20070036941A1 (en) | 2007-02-15 |
US8403028B2 (en) | 2013-03-26 |
US20120132785A1 (en) | 2012-05-31 |
EP1691942A1 (de) | 2006-08-23 |
DE10359547B3 (de) | 2005-03-03 |
EP1691942B1 (de) | 2011-05-11 |
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