EP0274964B1 - Procédé de moulage à mousse perdue de pièces métalliques - Google Patents

Procédé de moulage à mousse perdue de pièces métalliques Download PDF

Info

Publication number
EP0274964B1
EP0274964B1 EP87420309A EP87420309A EP0274964B1 EP 0274964 B1 EP0274964 B1 EP 0274964B1 EP 87420309 A EP87420309 A EP 87420309A EP 87420309 A EP87420309 A EP 87420309A EP 0274964 B1 EP0274964 B1 EP 0274964B1
Authority
EP
European Patent Office
Prior art keywords
mould
metal
pressure
lost foam
casting process
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.)
Expired - Lifetime
Application number
EP87420309A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0274964A1 (fr
Inventor
Michel Garat
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Publication of EP0274964A1 publication Critical patent/EP0274964A1/fr
Application granted granted Critical
Publication of EP0274964B1 publication Critical patent/EP0274964B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • 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
    • B22C9/04—Use of lost patterns
    • B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
    • B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure

Definitions

  • the present invention relates to a lost foam molding process for metal parts, in particular aluminum and its alloys according to the preamble of claim 1.
  • the invention therefore consists, after filling the mold with the molten metal, that is to say when the model has been completely destroyed by the metal and the vapors emitted have been evacuated, for example by using placing the mold under vacuum, and while the quantity of liquid is still slightly greater than the quantity of solid formed, putting the whole of the mold and the part under increasing isostatic pressure and not applying the chosen pressure directly.
  • pressure is applied before solidification begins, that is, while the metal is still completely in the liquid state.
  • This operation can be carried out using a sealed box in which the mold has been placed, said box being fitted with one or more pipes suitably distributed over its surface and connected to a source of pressurized gas.
  • This box can moreover be used for the evacuation of the combustion vapors of the model by connection with a vacuum pump.
  • the pressure necessary for the invention must preferably be between 0.5 and 1.5 MPa, since, for most parts, outside this range either the pressure is insufficient, or it is superfluous.
  • the pressurization must be carried out as quickly as possible to avoid any development of solidification and preferably the maximum value applied must be reached in less than 15 seconds.
  • the parts obtained are free from pitting and porosity following microretassuring.
  • Cylindrical hollow bodies with an external diameter of 45 mm, a wall thickness of 4 mm, comprising adjacent ribs and bosses of 20 ⁇ 20 ⁇ 80 mm were molded according to the method of the invention, that is to say that applied inside the enclosure containing the mold and just before solidification begins, an isostatic gas pressure steadily increasing from atmospheric pressure to 1 MPa in 10 seconds.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Laminated Bodies (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Mold Materials And Core Materials (AREA)
  • Pyridine Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Continuous Casting (AREA)
EP87420309A 1986-11-17 1987-11-16 Procédé de moulage à mousse perdue de pièces métalliques Expired - Lifetime EP0274964B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8616415 1986-11-17
FR8616415A FR2606688B1 (fr) 1986-11-17 1986-11-17 Procede de moulage a mousse perdue de pieces metalliques

Publications (2)

Publication Number Publication Date
EP0274964A1 EP0274964A1 (fr) 1988-07-20
EP0274964B1 true EP0274964B1 (fr) 1990-05-30

Family

ID=9341190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420309A Expired - Lifetime EP0274964B1 (fr) 1986-11-17 1987-11-16 Procédé de moulage à mousse perdue de pièces métalliques

Country Status (21)

Country Link
US (1) US5058653A (no)
EP (1) EP0274964B1 (no)
JP (1) JPH0669608B2 (no)
KR (1) KR910001179B1 (no)
AT (1) ATE53180T1 (no)
AU (1) AU592905B2 (no)
BR (1) BR8706146A (no)
CA (1) CA1322098C (no)
DE (1) DE3762952D1 (no)
DK (1) DK600287A (no)
ES (1) ES2015320B3 (no)
FI (1) FI875060A (no)
FR (1) FR2606688B1 (no)
GR (1) GR3001011T3 (no)
IE (1) IE59096B1 (no)
IS (1) IS1521B (no)
MX (1) MX168448B (no)
NO (1) NO167715C (no)
PT (1) PT86142B (no)
SU (1) SU1757448A3 (no)
UA (1) UA5993A1 (no)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651453B2 (fr) * 1989-09-07 1994-03-25 Pechiney Aluminium Perfectionnement au procede de moulage a mousse perdue et sous pression de pieces metalliques.
FR2644087B2 (fr) * 1986-11-17 1991-05-03 Pechiney Aluminium Perfectionnement au procede de moulage a mousse perdue de pieces metalliques
US5014764A (en) * 1986-11-17 1991-05-14 Aluminium Pechiney Lost-foam casting of aluminum under pressure
FR2662961B2 (fr) * 1986-11-17 1992-07-31 Pechiney Aluminium Procede de moulage a mousse perdue et sous basse pression de pieces en alliage d'aluminium.
FR2653692B2 (fr) * 1986-11-17 1992-01-03 Ney Aluminium Perfectionnement au procede de moulage a mousse perdue et sous pression controlee de pieces metalliques.
US4724889A (en) * 1987-04-27 1988-02-16 Ford Motor Company Degating technique for clustered castings made by ECP
ATE81044T1 (de) * 1989-03-07 1992-10-15 Pechiney Aluminium Verfahren zum vollformgiessen von metallischen gegenstaenden unter druck.
US5088544A (en) * 1989-10-31 1992-02-18 Aluminium Pechiney Process for the lost-foam casting, under controlled pressure, of metal articles
US5161595A (en) * 1990-06-07 1992-11-10 Aluminium Pechiney Process for the lost foam casting, under low pressure, of aluminium alloy articles
US5295530A (en) * 1992-02-18 1994-03-22 General Motors Corporation Single-cast, high-temperature, thin wall structures and methods of making the same
FR2688720B1 (fr) * 1992-03-17 1994-06-17 Pont A Mousson Procede et installation de moulage a modele perdu et utilisation de l'installation.
DE4210005A1 (de) * 1992-03-27 1993-09-30 Shera Werkstofftechnologie Gmb Material zur Herstellung von Gußformen für Gußwerkstücke aus Titan und anderen aggresiven Metallschmelzen
DE4210004A1 (de) * 1992-03-27 1993-09-30 Joachim Pajenkamp Verfahren und keramische Gußform zur Herstellung von dentalen Gußwerkstücken aus Titan und keramisierbare Zusammensetzung für die Herstellung einer keramischen Gußform zur Herstellung von dentalen Gußwerkstücken aus Titan
AT406837B (de) * 1994-02-10 2000-09-25 Electrovac Verfahren und vorrichtung zur herstellung von metall-matrix-verbundwerkstoffen
US5524696A (en) * 1994-08-05 1996-06-11 General Motors Corporation Method of making a casting having an embedded preform
US6453979B1 (en) 1998-05-14 2002-09-24 Howmet Research Corporation Investment casting using melt reservoir loop
US6019158A (en) * 1998-05-14 2000-02-01 Howmet Research Corporation Investment casting using pour cup reservoir with inverted melt feed gate
US6640877B2 (en) 1998-05-14 2003-11-04 Howmet Research Corporation Investment casting with improved melt filling
US6070644A (en) * 1998-05-14 2000-06-06 Howmet Research Corporation Investment casting using pressure cap sealable on gas permeable investment mold
DE19939828C1 (de) * 1999-08-21 2000-11-02 Albert Handtmann Metallguswerk Verfahren zum Herstellen eines geschäumten Modells mit Gießsystem
DE19945547A1 (de) * 1999-09-23 2001-04-05 Albert Handtmann Metallguswerk Verfahren zum Vollformgießen mit nachfolgender Gasdruckbeaufschlagung
US6969417B2 (en) * 2000-06-19 2005-11-29 Hydrogen Energy America, Llc Catalytic alloy for the dissociation of water into hydrogen and oxygen and method of making
ITTO20010287A1 (it) * 2001-03-27 2002-09-27 Teksid Spa Apparecchiatura di colata per la produzione di getti metallici mediante tecnologia "lost-foam".
US6763876B1 (en) 2001-04-26 2004-07-20 Brunswick Corporation Method and apparatus for casting of metal articles using external pressure
US6883580B1 (en) 2003-01-27 2005-04-26 Brunswick Corporation Apparatus and improved method for lost foam casting of metal articles using external pressure
US7100669B1 (en) * 2003-04-09 2006-09-05 Brunswick Corporation Aluminum-silicon casting alloy having refined primary silicon due to pressure
US6957685B1 (en) * 2003-05-07 2005-10-25 Brunswick Corporation Method of cleaning and of heat treating lost foam castings
US7494554B1 (en) 2003-05-07 2009-02-24 Brunswick Corporation Method for continuous manufacturing of cast articles utilizing one or more fluidized beds for heat treating and aging purposes
CN102380608A (zh) * 2010-08-30 2012-03-21 江苏金鑫电器有限公司 一种铝合金铸造方法
CN101934351B (zh) * 2010-10-19 2012-04-25 湘潭高耐合金制造有限公司 一种混凝土输送泵油压水箱的制作工艺
CN102198488A (zh) * 2011-04-19 2011-09-28 滁州金诺实业有限公司 用消失模铸造工艺制造冰箱内胆模具铸坯的方法
CN102343417A (zh) * 2011-09-19 2012-02-08 滁州金诺实业有限公司 消失模铸造发动机缸体时的水道预填方法
CN102806312A (zh) * 2012-08-30 2012-12-05 贵州安吉航空精密铸造有限责任公司 一种铝合金铸件的生产方法
CN102873308A (zh) * 2012-10-09 2013-01-16 西安交通大学 双液双金属的消失模铸造复合破碎机锤头的方法
CN103894545A (zh) * 2012-12-26 2014-07-02 龙工（福建）铸锻有限公司 带有扁状拐弯深盲孔铸件的消失模铸造工艺
US11047032B2 (en) 2013-03-05 2021-06-29 Brunswick Corporation Method for solution heat treating with pressure
CN103567385A (zh) * 2013-11-20 2014-02-12 江苏江旭铸造集团有限公司 消失模铸造用硬化剂
CN103962505B (zh) * 2014-05-15 2016-01-20 河北钢铁股份有限公司唐山分公司 一种能保证辊环铸造质量的真空负压铸造工艺
CN104338900B (zh) * 2014-10-21 2016-05-04 河北瑞欧消失模科技有限公司 分离式消失模铸造生产线的电气控制方法
CN104353781A (zh) * 2014-10-27 2015-02-18 无锡乐华自动化科技有限公司 港口机械用低合金铸钢车轮消失模铸造工艺
US20160158837A1 (en) * 2014-12-06 2016-06-09 Soliden, LLC Sand casting device and associated method with improved mechanical properties
CN104525847A (zh) * 2014-12-22 2015-04-22 南京优耐特精密机械制造有限公司 型壳硬化剂
CN105344940B (zh) * 2015-12-07 2017-12-05 兴化市雅兰机械制造有限公司 电机壳消失模铸造工艺
CN106077483A (zh) * 2016-08-08 2016-11-09 安徽兴达动力机械有限公司 一种多缸柴油机缸体铸造模具及其铸造工艺
CN106734879B (zh) * 2016-12-12 2018-12-04 重庆理工大学 一种垃圾焚烧用往复式炉排片的消失模铸造成型工艺

Family Cites Families (14)

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US1846913A (en) * 1929-05-06 1932-02-23 Max S Shapiro Dental casting apparatus
FR887120A (fr) * 1941-11-19 1943-11-04 Silumin Ges M B H Procédé de moulage
US3157924A (en) * 1964-02-12 1964-11-24 Maytag Co Method of casting
DE2622552C3 (de) * 1976-05-20 1979-04-12 Vki-Rheinhold & Mahla Ag, 6800 Mannheim Formkasten zur Herstellung von Gußstücken
JPS5884662A (ja) * 1981-11-12 1983-05-20 Toyota Motor Corp 加圧鋳造法及び装置
SU1079353A1 (ru) * 1982-05-17 1984-03-15 Московский автомеханический институт Способ лить в песчано-глинистые формы в автоклаве
FR2559407B1 (fr) * 1984-02-15 1986-09-05 Pont A Mousson Procede de moulage en fonderie et moule pour la coulee de precision sous basse pression, avec modele gazeifiable et moule en sable sans liant
JPS60234736A (ja) * 1984-05-07 1985-11-21 Yukio Toyama 消失性原型を用いる減圧鋳造法
GB2159445B (en) * 1984-06-02 1988-07-06 Cosworth Res & Dev Ltd Casting of metal articles
DE3603310A1 (de) * 1986-02-04 1987-08-06 Leybold Heraeus Gmbh & Co Kg Verfahren und vorrichtung zum giessen von formteilen mit nachfolgendem isostatischen verdichten
DE3760303D1 (en) * 1986-04-11 1989-08-17 Alusuisse Process and plant for pressure casting
EP0254680A1 (de) * 1986-07-21 1988-01-27 Schweizerische Aluminium Ag Niederdruck-Kokillengiessverfahren
US4724889A (en) * 1987-04-27 1988-02-16 Ford Motor Company Degating technique for clustered castings made by ECP
JP2543898B2 (ja) * 1987-07-30 1996-10-16 マツダ株式会社 フルモ−ルド鋳造方法

Also Published As

Publication number Publication date
JPH0669608B2 (ja) 1994-09-07
DK600287D0 (da) 1987-11-16
NO874769D0 (no) 1987-11-16
PT86142B (pt) 1993-08-31
IS1521B (is) 1992-12-15
UA5993A1 (uk) 1994-12-29
SU1757448A3 (ru) 1992-08-23
MX168448B (es) 1993-05-25
US5058653A (en) 1991-10-22
KR880005976A (ko) 1988-07-21
ES2015320B3 (es) 1990-08-16
NO874769L (no) 1988-05-18
IS3282A7 (is) 1988-05-18
KR910001179B1 (ko) 1991-02-25
AU592905B2 (en) 1990-01-25
CA1322098C (fr) 1993-09-14
PT86142A (pt) 1988-12-15
JPS63137564A (ja) 1988-06-09
FI875060A0 (fi) 1987-11-16
NO167715B (no) 1991-08-26
AU8124087A (en) 1988-10-06
NO167715C (no) 1991-12-04
GR3001011T3 (en) 1991-12-30
FR2606688A1 (fr) 1988-05-20
BR8706146A (pt) 1988-06-21
EP0274964A1 (fr) 1988-07-20
FR2606688B1 (fr) 1989-09-08
DE3762952D1 (de) 1990-07-05
IE873062L (en) 1988-05-17
FI875060A (fi) 1988-05-18
ATE53180T1 (de) 1990-06-15
IE59096B1 (en) 1994-01-12
DK600287A (da) 1988-05-18

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