WO2010133596A3 - Kerne auf der basis von salz mit behandelter oberfläche - Google Patents

Kerne auf der basis von salz mit behandelter oberfläche Download PDF

Info

Publication number
WO2010133596A3
WO2010133596A3 PCT/EP2010/056819 EP2010056819W WO2010133596A3 WO 2010133596 A3 WO2010133596 A3 WO 2010133596A3 EP 2010056819 W EP2010056819 W EP 2010056819W WO 2010133596 A3 WO2010133596 A3 WO 2010133596A3
Authority
WO
WIPO (PCT)
Prior art keywords
cores
substances
water
salt
soluble
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.)
Ceased
Application number
PCT/EP2010/056819
Other languages
English (en)
French (fr)
Other versions
WO2010133596A2 (de
Inventor
Peter Stingl
Dieter Käfer
Harald Hudler
Hans-Jürgen SCHREINER
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.)
Ceramtec GmbH
Original Assignee
Ceramtec GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ceramtec GmbH filed Critical Ceramtec GmbH
Priority to EP10722051A priority Critical patent/EP2432606A2/de
Publication of WO2010133596A2 publication Critical patent/WO2010133596A2/de
Publication of WO2010133596A3 publication Critical patent/WO2010133596A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • 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
    • B22C1/14—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 for separating the pattern from the mould
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/52—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles soluble or fusible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4457—Removing or ejecting moulded articles for undercut articles using fusible, soluble or destructible cores

Landscapes

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

Abstract

Werden an die Oberfläche und die Konturgenauigkeit der Hohlräume in Gusswerkstücken besondere Anforderungen gestellt, muss die Oberfläche der Kerne besonders glatt und konturgenau sein. Der Gusswerkstoff darf nicht mit der Oberfläche eines Kerns reagieren, nicht in die Oberfläche eindringen und sie nicht auskolken. Erfindungsgemäß wird deshalb vorgeschlagen, dass die Oberfläche der Kerne in mindesten einem Teilbereich mit einer Schicht aus wasserlöslichem Salz oder Mischungen aus wasserlöslichen Salzen, gegebenenfalls zusätzlich mit in Wasser vollständig löslichen Hilfsstoffen gemischt, bedeckt wird und dass die Schicht in zwei Schritten gebildet wird, wobei im ersten Schritt mindestens in einem Teilbereich der Oberfläche der Kerne eine Oberflächenaktivierung zur Aufnahme der aufzubringenden Stoffe erfolgt und in einem zweiten Schritt die Stoffe auf dem vorgesehenen Oberflächenbereich aufgebracht werden und diese Stoffe auf der Oberfläche der Salzkerne gebunden werden.
PCT/EP2010/056819 2009-05-18 2010-05-18 Kerne auf der basis von salz mit behandelter oberfläche Ceased WO2010133596A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10722051A EP2432606A2 (de) 2009-05-18 2010-05-18 Kerne auf der basis von salz mit behandelter oberfläche

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009003184 2009-05-18
DE102009003184.7 2009-05-18

Publications (2)

Publication Number Publication Date
WO2010133596A2 WO2010133596A2 (de) 2010-11-25
WO2010133596A3 true WO2010133596A3 (de) 2011-02-03

Family

ID=42583976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/056819 Ceased WO2010133596A2 (de) 2009-05-18 2010-05-18 Kerne auf der basis von salz mit behandelter oberfläche

Country Status (3)

Country Link
EP (1) EP2432606A2 (de)
DE (1) DE102010029077A1 (de)
WO (1) WO2010133596A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013007735B4 (de) * 2012-05-08 2015-10-15 Audi Ag Verfahren zum Herstellen eines gussgeeigneten Salzkerns
DE102012108079B3 (de) * 2012-08-31 2013-11-14 Hochschule Aalen Verfahren zur Herstellung hohler Salzkerne
DE102012022631B3 (de) * 2012-11-20 2014-04-03 Audi Ag Verfahren zur Herstellung eines Salzkerns für das Druckgießen mit einer zuvor abgepackten Salzmenge
EP3024610B1 (de) 2013-07-24 2018-11-21 Emil Müller GmbH Salzkerne und generative fertigungsverfahren zur herstellung von salzkernen
DE102014017091A1 (de) 2014-11-20 2016-05-25 Mahle International Gmbh Verfahren zum Herstellen eines Kühlkanalkolbens sowie nach einem derartigen Verfahren hergestellter Kühlkanalkolben
DE102021200812A1 (de) 2021-01-29 2022-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Formelementen für Tauch- und Laminierverfahren, Kernen oder Modellen, die zum Abbilden von Hinterschneidungen in Metall-, Keramik-, Kunststoff- oder Compositebauteilen einsetzbar sind

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692551A (en) * 1970-02-24 1972-09-19 Libbey Owens Ford Co Core for use in pressure molding
US3764575A (en) * 1969-07-09 1973-10-09 Schmidt Gmbh Karl Salt core containing synthetic resin and water-glass as binders
WO2004071738A1 (de) * 2003-02-11 2004-08-26 Ashland-Südchemie- Kernfest Gmbh Beschichtungsmassen für gusskerne
WO2007036563A1 (de) * 2005-09-30 2007-04-05 Ceramtec Ag Innovative Ceramic Engineering Kerne sowie ein verfahren zur herstellung von kernen
DE102006046792A1 (de) * 2005-09-30 2007-04-05 Ceramtec Ag Innovative Ceramic Engineering Kerne sowie ein Verfahren zur Herstellung von Kernen
JP2008036702A (ja) * 2006-08-10 2008-02-21 Toyota Motor Corp 金属鋳物用鋳造型

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803151A (en) 1996-07-01 1998-09-08 Alyn Corporation Soluble core method of manufacturing metal cast products

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764575A (en) * 1969-07-09 1973-10-09 Schmidt Gmbh Karl Salt core containing synthetic resin and water-glass as binders
US3692551A (en) * 1970-02-24 1972-09-19 Libbey Owens Ford Co Core for use in pressure molding
WO2004071738A1 (de) * 2003-02-11 2004-08-26 Ashland-Südchemie- Kernfest Gmbh Beschichtungsmassen für gusskerne
WO2007036563A1 (de) * 2005-09-30 2007-04-05 Ceramtec Ag Innovative Ceramic Engineering Kerne sowie ein verfahren zur herstellung von kernen
DE102006046792A1 (de) * 2005-09-30 2007-04-05 Ceramtec Ag Innovative Ceramic Engineering Kerne sowie ein Verfahren zur Herstellung von Kernen
JP2008036702A (ja) * 2006-08-10 2008-02-21 Toyota Motor Corp 金属鋳物用鋳造型

Also Published As

Publication number Publication date
WO2010133596A2 (de) 2010-11-25
EP2432606A2 (de) 2012-03-28
DE102010029077A1 (de) 2010-11-25

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