EP1721689A4 - Process for producing cast item - Google Patents

Process for producing cast item

Info

Publication number
EP1721689A4
EP1721689A4 EP05710586A EP05710586A EP1721689A4 EP 1721689 A4 EP1721689 A4 EP 1721689A4 EP 05710586 A EP05710586 A EP 05710586A EP 05710586 A EP05710586 A EP 05710586A EP 1721689 A4 EP1721689 A4 EP 1721689A4
Authority
EP
European Patent Office
Prior art keywords
mold
mixture
molten metal
completed
cast article
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
EP05710586A
Other languages
German (de)
French (fr)
Other versions
EP1721689A1 (en
EP1721689B1 (en
Inventor
Yusuke Kato
Toshihiko Zenpo
Norihiro Asano
Masahiko Nagasaka
Kazuyuki Nishikawa
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.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
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 Sintokogio Ltd filed Critical Sintokogio Ltd
Publication of EP1721689A1 publication Critical patent/EP1721689A1/en
Publication of EP1721689A4 publication Critical patent/EP1721689A4/en
Application granted granted Critical
Publication of EP1721689B1 publication Critical patent/EP1721689B1/en
Active 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
    • B22C1/02—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
    • B22C1/10—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 influencing the hardening tendency of the mould material
    • 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
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/005—Removing cores by vibrating or hammering

Landscapes

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

Abstract

A casting process that employs a collapse-prone core is disclosed. The process includes the steps of mixing one or more kind of an aggregate granular material, one or more kind of a water-soluble binder, and water, to form a mixture of the aggregate granular material, and stirring the mixture to cause it to foam. Such a mixture prevents the generation of undesirable gases when molding a mold and pouring molten metal into the mold. The process also includes the steps of charging the foamed mixture into a molding space, evaporating the moisture within the charged mixture to harden the charged mixture to mold a mold with the hardened mixture, assembling at least one mold that is cast in the hardened mixture with the mating mold to form a completed mold, pouring molten metal into the completed mold, removing the completed mold from a cast article that is composed of the solidified molten metal during a process of cooling the cast article after the molten metal is solidified, and applying a heat treatment to the cast article.
EP05710586A 2004-02-25 2005-02-23 Process for producing cast item Active EP1721689B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004049428 2004-02-25
PCT/JP2005/002893 WO2005080023A1 (en) 2004-02-25 2005-02-23 Process for producing cast item

Publications (3)

Publication Number Publication Date
EP1721689A1 EP1721689A1 (en) 2006-11-15
EP1721689A4 true EP1721689A4 (en) 2007-05-02
EP1721689B1 EP1721689B1 (en) 2011-05-18

Family

ID=34879546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05710586A Active EP1721689B1 (en) 2004-02-25 2005-02-23 Process for producing cast item

Country Status (7)

Country Link
US (1) US20070137825A1 (en)
EP (1) EP1721689B1 (en)
JP (1) JP3948490B2 (en)
CN (1) CN1921969B (en)
AT (1) ATE509714T1 (en)
TW (1) TW200533436A (en)
WO (1) WO2005080023A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11501911B2 (en) * 2007-04-05 2022-11-15 Grant A. MacLennan Method of forming a cast inductor apparatus
DE102007042506B4 (en) * 2007-09-07 2010-06-17 Norbert Gatzweiler Process for quenching aluminum components
JP5024733B2 (en) * 2008-10-15 2012-09-12 新東工業株式会社 Sand removal method for cast sand cores
CN101956121B (en) * 2010-10-13 2013-03-13 江苏万恒铸业有限公司 Manufacture process of high-pressure hydro-stainless steel valve casting
US10371686B2 (en) 2012-11-15 2019-08-06 Heraeus EIectro-Nite International N.V. Detection device for molten metal
US9789533B2 (en) 2012-11-19 2017-10-17 Sintokogio, Ltd. Sand for casting mold, manufacturing method for sand casting-mold, and core for metal casting
CN103601465B (en) * 2013-11-06 2015-04-29 安庆帝雅艺术品有限公司 Bronze ware filling material
AT517384A1 (en) * 2015-06-15 2017-01-15 Fill Gmbh Method for producing a cast workpiece
MX2019002260A (en) * 2016-08-31 2019-07-04 Asahi Yukizai Corp Casting mold manufacturing method.
AT520370B1 (en) 2017-09-07 2020-08-15 Fill Gmbh Process for the production of a cast workpiece
DE102017131255A1 (en) * 2017-12-22 2019-06-27 HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung A method of making a metallic casting or a cured molding using aliphatic polymers comprising hydroxy groups
JP7309405B2 (en) * 2018-03-30 2023-07-18 株式会社巴川製紙所 Manufacturing method of sand mold material for mold, core for mold and sand mold material
TWI789125B (en) * 2021-11-19 2023-01-01 財團法人金屬工業研究發展中心 Low pressure casting metal foaming system and intermediate foaming device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH470922A (en) * 1965-07-23 1969-04-15 Tsnii T I Mash Liquid, self-hardening mixture for casting molds and mold cores
GB1361027A (en) * 1970-07-07 1974-07-24 Tech Des Ind De La Fonderie We Manufacture of foundry moulds or cores
US3826658A (en) * 1966-06-02 1974-07-30 British Cast Iron Res Ass Foundry moulding materials
JPH05261478A (en) * 1992-03-19 1993-10-12 Ube Ind Ltd Producltion of collapsible sand core

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO142944L (en) * 1975-08-14 1900-01-01
JPS57115942A (en) * 1981-01-06 1982-07-19 Sintokogio Ltd Method for forming mold
JPS5832540A (en) * 1981-08-21 1983-02-25 Sintokogio Ltd Production of core for die casting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH470922A (en) * 1965-07-23 1969-04-15 Tsnii T I Mash Liquid, self-hardening mixture for casting molds and mold cores
US3826658A (en) * 1966-06-02 1974-07-30 British Cast Iron Res Ass Foundry moulding materials
GB1361027A (en) * 1970-07-07 1974-07-24 Tech Des Ind De La Fonderie We Manufacture of foundry moulds or cores
JPH05261478A (en) * 1992-03-19 1993-10-12 Ube Ind Ltd Producltion of collapsible sand core

Also Published As

Publication number Publication date
EP1721689A1 (en) 2006-11-15
JP3948490B2 (en) 2007-07-25
CN1921969B (en) 2015-03-18
JPWO2005080023A1 (en) 2007-10-25
US20070137825A1 (en) 2007-06-21
ATE509714T1 (en) 2011-06-15
EP1721689B1 (en) 2011-05-18
WO2005080023A1 (en) 2005-09-01
CN1921969A (en) 2007-02-28
TW200533436A (en) 2005-10-16

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