WO2005080022A2 - Noyaux de sel solubles dans l'eau pour coulee sous pression - Google Patents

Noyaux de sel solubles dans l'eau pour coulee sous pression Download PDF

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Publication number
WO2005080022A2
WO2005080022A2 PCT/DE2005/000272 DE2005000272W WO2005080022A2 WO 2005080022 A2 WO2005080022 A2 WO 2005080022A2 DE 2005000272 W DE2005000272 W DE 2005000272W WO 2005080022 A2 WO2005080022 A2 WO 2005080022A2
Authority
WO
WIPO (PCT)
Prior art keywords
parts
weight
water
salt
die casting
Prior art date
Application number
PCT/DE2005/000272
Other languages
German (de)
English (en)
Other versions
WO2005080022A3 (fr
Inventor
Dieter GRÖZINGER
Original Assignee
Emil Müller 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
Priority claimed from DE102004038288A external-priority patent/DE102004038288A1/de
Application filed by Emil Müller GmbH filed Critical Emil Müller GmbH
Priority to DE112005000950T priority Critical patent/DE112005000950A5/de
Priority to EP05714987A priority patent/EP1715970A2/fr
Priority to US10/589,629 priority patent/US20080035294A1/en
Publication of WO2005080022A2 publication Critical patent/WO2005080022A2/fr
Publication of WO2005080022A3 publication Critical patent/WO2005080022A3/fr

Links

Classifications

    • 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

Definitions

  • the present invention relates to water-soluble salt cores for die casting with the features of the preamble of claim 1.
  • salt cores for foundry purposes which are washed out after the casting of parts, have long been known, as have attempts to optimize them by adding additives. It was found in DE-C-14 83 641 that the addition of up to 10% borax, magnesium oxide or talc improves the resilience of salt cores made of NaCl and / or KC1.
  • DE-A-19 34 787 proposes the addition of a synthetic resin binder and water glass to avoid pressing and sintering. These additions are also known from US-A-37 64 575.
  • Such salt cores were used in the past for permanent mold casting. These salt cores could not withstand die casting. Instead, sand cores have been used here for decades, most of which are made with binders containing phenol and furan. Since this technology is based on the processing of environmentally harmful substances, it is classified as critical and requires considerable, costly protective measures. There is therefore a need for environmentally friendly, e.g. salt-based cores for the die casting process
  • the object of the present invention is to provide a method for producing a salt core for die casting which produces salt cores which meet the requirements of die casting and which are produced from components which do not contain any environmentally harmful components.
  • water-soluble salt cores for die casting which are produced by compressing a mixture of water-soluble salts under pressure and then sintering 0.5 to 2 parts by weight of graphite or talc come, characterized in that the compression takes place under a pressure of between 300 and 900 N / mm 2 .
  • the pressed salt cores are sintered at 650 - 730 ° C between 1 / 2h and 2h.
  • This mixture is subjected to a pressure of 700 N / mm 2 and at 720 °
  • the salt core is suitable for die casting.

Abstract

La présente invention concerne des noyaux de sel solubles dans l'eau destinés à la coulée sous pression, qui sont produits par compression puis frittage d'un mélange de sels solubles dans l'eau. Selon l'invention, le mélange fait intervenir, sur 100 parties pondérales de sel, entre 4 et 5 parties pondérales de borax, entre 2 et 3 parties pondérales de magnésium et entre 0,5 et 2 parties pondérales de graphite ou de talc, et la compression s'effectue sous une pression comprise entre 300 et 900 N/mm<2>.
PCT/DE2005/000272 2004-02-19 2005-02-17 Noyaux de sel solubles dans l'eau pour coulee sous pression WO2005080022A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112005000950T DE112005000950A5 (de) 2004-02-19 2005-02-17 Wasserlösliche Salzkerne für den Druckguss
EP05714987A EP1715970A2 (fr) 2004-02-19 2005-02-17 Noyaux de sel solubles dans l'eau pour coulee sous pression
US10/589,629 US20080035294A1 (en) 2004-02-19 2005-02-17 Water-Soluble Salt Cores for Die Casting

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004008096.8 2004-02-19
DE102004008096 2004-02-19
DE102004038288A DE102004038288A1 (de) 2004-02-19 2004-08-06 Wasserlösliche Salzkerne
DE102004038288.3 2004-08-06

Publications (2)

Publication Number Publication Date
WO2005080022A2 true WO2005080022A2 (fr) 2005-09-01
WO2005080022A3 WO2005080022A3 (fr) 2006-03-02

Family

ID=34888796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000272 WO2005080022A2 (fr) 2004-02-19 2005-02-17 Noyaux de sel solubles dans l'eau pour coulee sous pression

Country Status (4)

Country Link
US (1) US20080035294A1 (fr)
EP (1) EP1715970A2 (fr)
DE (1) DE112005000950A5 (fr)
WO (1) WO2005080022A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111156A1 (fr) * 2005-04-21 2006-10-26 Emil Müller GmbH Noyaux de sels solubles dans l'eau
CN1314498C (zh) * 2005-09-12 2007-05-09 华南理工大学 一种挤压铸造用可溶盐芯及其制作方法
DE102007009274A1 (de) 2007-02-26 2008-08-28 Daimler Ag Wasserlösliche Gießkerne für den Leichtmetallguss
DE102008039208A1 (de) 2008-08-20 2009-02-12 Heppes, Frank, Dipl.-Ing. Urformkerne zur Herstellung umfangreich konturierter, hinterschnittener Hohlräume in Urformteilen, damit hergestellte Urformteile sowie Verfahren zur Herstellung, Anwendung und Entfernung der Kerne
WO2013152851A3 (fr) * 2012-04-10 2014-03-20 Emil Müller GmbH Noyaux à base de sel, procédé de fabrication de ces noyaux et leur utilisation
DE102012022390B3 (de) * 2012-11-15 2014-04-03 Audi Ag Verfahren zur kalten Herstellung eines Salzkerns für das Druckgießen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP6914783B2 (ja) * 2017-08-31 2021-08-04 ローレルバンクマシン株式会社 物品管理装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1924991A1 (de) * 1969-05-16 1970-11-19 Schmidt Gmbh Karl Kern fuer Giessereizwecke

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1483641C3 (de) * 1965-06-12 1973-10-11 Karl Schmidt Gmbh, 7107 Neckarsulm Wasserlösliche Salzkerne
US3963818A (en) * 1971-10-29 1976-06-15 Toyo Kogyo Co., Ltd. Water soluble core for pressure die casting and process for making the same
US3968828A (en) * 1973-11-14 1976-07-13 Ashland Oil, Inc. Method of casting non-ferrous alloys

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1924991A1 (de) * 1969-05-16 1970-11-19 Schmidt Gmbh Karl Kern fuer Giessereizwecke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1715970A2 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111156A1 (fr) * 2005-04-21 2006-10-26 Emil Müller GmbH Noyaux de sels solubles dans l'eau
CN1314498C (zh) * 2005-09-12 2007-05-09 华南理工大学 一种挤压铸造用可溶盐芯及其制作方法
DE102007009274A1 (de) 2007-02-26 2008-08-28 Daimler Ag Wasserlösliche Gießkerne für den Leichtmetallguss
DE102008039208A1 (de) 2008-08-20 2009-02-12 Heppes, Frank, Dipl.-Ing. Urformkerne zur Herstellung umfangreich konturierter, hinterschnittener Hohlräume in Urformteilen, damit hergestellte Urformteile sowie Verfahren zur Herstellung, Anwendung und Entfernung der Kerne
WO2013152851A3 (fr) * 2012-04-10 2014-03-20 Emil Müller GmbH Noyaux à base de sel, procédé de fabrication de ces noyaux et leur utilisation
DE102012022390B3 (de) * 2012-11-15 2014-04-03 Audi Ag Verfahren zur kalten Herstellung eines Salzkerns für das Druckgießen

Also Published As

Publication number Publication date
US20080035294A1 (en) 2008-02-14
DE112005000950A5 (de) 2007-05-24
EP1715970A2 (fr) 2006-11-02
WO2005080022A3 (fr) 2006-03-02

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