AR241761A1 - Process for the lost foam casting under pressure of metal pieces - Google Patents
Process for the lost foam casting under pressure of metal piecesInfo
- Publication number
- AR241761A1 AR241761A1 AR89314302A AR31430289A AR241761A1 AR 241761 A1 AR241761 A1 AR 241761A1 AR 89314302 A AR89314302 A AR 89314302A AR 31430289 A AR31430289 A AR 31430289A AR 241761 A1 AR241761 A1 AR 241761A1
- Authority
- AR
- Argentina
- Prior art keywords
- mold
- metal
- lost foam
- metal pieces
- sand
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
-
- 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
-
- 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
-
- 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
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Casting Devices For Molds (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Powder Metallurgy (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Pens And Brushes (AREA)
Abstract
PROCEDIMIENTO DE MOLDEO DE ESPUMA PERDIDA PARA LA PRODUCCION DE PIEZAS METALICAS DONDE UN MODELO DEL PRODUCTO A SER OBTENIDO HECHO DE UNA ESPUMA DE MATERIAL ORGANICO ES INTRODUCIDO EN UN MOLDE CONSTITUIDO POR UN BANO DE ARENA SECA QUE NO CONTIENE NINGUN AGENTE LIGANTE Y LUEGO DE HABER LLENADO EL MOLDE CON EL METAL FUNDIDO Y ANTES DE QUE LA FRACCION SOLIDIFICADA DEL METAL SOBREPASE UN 40%EN PESO, SE APLICA UNA PRESION GASEOSA ISOTACTICA EN EL MOLDE. LA PRESION GASEOSA ISOTACTICA APLICADA CRECE CON TAL VELOCIDAD QUE EN FUNCION DE LA GRANULOMETRIA DE LA ARENA Y DE LA PROFUNDIDAD DE INMERSION DEL MODELO, GENERA RAPIDA Y TEMPORARIAMENTE POR PERDIDA DE CARGA A TRAVES DE LA ARENA, UNA SOBREPRESION DEL METAL FUNDIDO, ALCANZANDO LA SOBREPRESION UN VALOR COMPRENDIDO ENTRE DOS LIMITES Y DISMINUYENDO A MEDIDA QUE LA PRESION AUMENTA, MANTENIENDO LUEGO LA PRESION CONSTANTE HASTA UNA COMPLETA SOLIDIFICACION.LOST FOAM MOLDING PROCEDURE FOR THE PRODUCTION OF METAL PIECES WHERE A MODEL OF THE PRODUCT TO BE OBTAINED MADE OF A FOAM OF ORGANIC MATERIAL IS INTRODUCED IN A MOLD CONSTITUTED BY A DRY SAND BATH THAT DOES NOT CONTAIN ANY BINDING AGENTS AND THE MOLD WITH THE MELTED METAL AND BEFORE THE SOLIDIFIED FRACTION OF THE METAL EXCEEDS 40% IN WEIGHT, ISOTACTIC GASEOUS PRESSURE IS APPLIED IN THE MOLD. THE ISOTACTIC GASEOUS PRESSURE APPLIED GROWS WITH SUCH SPEED THAT, DEPENDING ON THE GRANULOMETRY OF THE SAND AND THE DEPTH OF IMMERSION OF THE MODEL, IT GENERATES RAPIDLY AND TEMPORARILY BY LOSS OF LOAD THROUGH THE SAND, MELTING THE MELTED METAL, A VALUE COMPRISED BETWEEN TWO LIMITS AND DECREASING AS THE PRESSURE INCREASES, THEN MAINTAINING THE PRESSURE CONSTANTLY UNTIL A COMPLETE SOLIDIFICATION.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR898903706A FR2644087B2 (en) | 1986-11-17 | 1989-03-07 | IMPROVEMENT IN THE LOSS FOAM MOLDING PROCESS OF METAL PARTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR241761A1 true AR241761A1 (en) | 1992-12-30 |
Family
ID=9379922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AR89314302A AR241761A1 (en) | 1989-03-07 | 1989-06-29 | Process for the lost foam casting under pressure of metal pieces |
Country Status (19)
| Country | Link |
|---|---|
| EP (1) | EP0386384B1 (en) |
| JP (1) | JPH0626748B2 (en) |
| KR (1) | KR920003686B1 (en) |
| AR (1) | AR241761A1 (en) |
| AT (1) | ATE81044T1 (en) |
| AU (1) | AU600413B2 (en) |
| BR (1) | BR8903257A (en) |
| CA (1) | CA1335689C (en) |
| DE (1) | DE68903103T2 (en) |
| DK (1) | DK320189A (en) |
| ES (1) | ES2034726T3 (en) |
| FI (1) | FI93322C (en) |
| GR (1) | GR3005937T3 (en) |
| IE (1) | IE63394B1 (en) |
| MX (1) | MX172962B (en) |
| NO (1) | NO172968C (en) |
| PT (1) | PT91078B (en) |
| RU (1) | RU1836177C (en) |
| UA (1) | UA13214A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2651453B2 (en) * | 1989-09-07 | 1994-03-25 | Pechiney Aluminium | IMPROVEMENT IN THE LOST FOAM AND PRESSURE MOLDING PROCESS OF METAL PARTS. |
| US5301739A (en) * | 1992-06-30 | 1994-04-12 | Cook Arnold J | Method for casting and densification |
| US6640877B2 (en) * | 1998-05-14 | 2003-11-04 | Howmet Research Corporation | Investment casting with improved melt filling |
| RU2312738C1 (en) * | 2006-02-09 | 2007-12-20 | Открытое акционерное общество "Новосибирский завод химконцентратов" | Investment casting method at pressure crystallization and apparatus for performing the same |
| CN103556011B (en) * | 2013-11-22 | 2015-10-21 | 山东蒙沃变速器有限公司 | A kind of lost foam casting aluminum alloy materials and preparation method thereof |
| CN109550889B (en) * | 2017-09-25 | 2024-06-28 | 南京龙宁机床装备有限公司 | Main shaft ram lost foam and method for casting main shaft ram by using same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR887120A (en) * | 1941-11-19 | 1943-11-04 | Silumin Ges M B H | Molding process |
| US3420291A (en) * | 1965-12-29 | 1969-01-07 | Trw Inc | Method for reducing metal casting porosity |
| FR2559407B1 (en) * | 1984-02-15 | 1986-09-05 | Pont A Mousson | FOUNDRY MOLDING PROCESS AND MOLD FOR PRECISION CASTING UNDER LOW PRESSURE, WITH GASIFIABLE MODEL AND SAND MOLD WITHOUT BINDER |
| GB2159445B (en) * | 1984-06-02 | 1988-07-06 | Cosworth Res & Dev Ltd | Casting of metal articles |
| DE3760303D1 (en) * | 1986-04-11 | 1989-08-17 | Alusuisse | Process and plant for pressure casting |
| FR2606688B1 (en) * | 1986-11-17 | 1989-09-08 | Pechiney Aluminium | LOSS FOAM MOLDING PROCESS FOR METAL PARTS |
| US4724889A (en) * | 1987-04-27 | 1988-02-16 | Ford Motor Company | Degating technique for clustered castings made by ECP |
-
1989
- 1989-06-13 EP EP89420215A patent/EP0386384B1/en not_active Expired - Lifetime
- 1989-06-13 DE DE8989420215T patent/DE68903103T2/en not_active Expired - Lifetime
- 1989-06-13 AT AT89420215T patent/ATE81044T1/en not_active IP Right Cessation
- 1989-06-13 ES ES198989420215T patent/ES2034726T3/en not_active Expired - Lifetime
- 1989-06-21 CA CA000603469A patent/CA1335689C/en not_active Expired - Fee Related
- 1989-06-27 NO NO892666A patent/NO172968C/en unknown
- 1989-06-28 MX MX016629A patent/MX172962B/en unknown
- 1989-06-28 IE IE209789A patent/IE63394B1/en not_active IP Right Cessation
- 1989-06-28 DK DK320189A patent/DK320189A/en not_active Application Discontinuation
- 1989-06-28 FI FI893154A patent/FI93322C/en not_active Application Discontinuation
- 1989-06-29 AR AR89314302A patent/AR241761A1/en active
- 1989-06-30 BR BR898903257A patent/BR8903257A/en not_active IP Right Cessation
- 1989-07-03 AU AU37804/89A patent/AU600413B2/en not_active Expired
- 1989-07-06 PT PT91078A patent/PT91078B/en not_active IP Right Cessation
- 1989-07-07 JP JP1176969A patent/JPH0626748B2/en not_active Expired - Lifetime
- 1989-07-12 RU SU4614509A patent/RU1836177C/en active
- 1989-07-12 UA UA4614509A patent/UA13214A/en unknown
- 1989-07-21 KR KR1019890010344A patent/KR920003686B1/en not_active IP Right Cessation
-
1992
- 1992-10-12 GR GR920402257T patent/GR3005937T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| UA13214A (en) | 1997-02-28 |
| NO892666D0 (en) | 1989-06-27 |
| AU3780489A (en) | 1989-10-19 |
| ATE81044T1 (en) | 1992-10-15 |
| DK320189A (en) | 1990-09-08 |
| FI893154A0 (en) | 1989-06-28 |
| KR920003686B1 (en) | 1992-05-09 |
| JPH02235546A (en) | 1990-09-18 |
| KR900014059A (en) | 1990-10-22 |
| CA1335689C (en) | 1995-05-30 |
| FI93322B (en) | 1994-12-15 |
| NO892666L (en) | 1990-09-10 |
| JPH0626748B2 (en) | 1994-04-13 |
| PT91078A (en) | 1990-11-07 |
| FI893154A (en) | 1990-09-08 |
| MX172962B (en) | 1994-01-26 |
| DE68903103D1 (en) | 1992-11-05 |
| DE68903103T2 (en) | 1993-04-15 |
| IE892097L (en) | 1990-09-07 |
| EP0386384A1 (en) | 1990-09-12 |
| FI93322C (en) | 1995-03-27 |
| RU1836177C (en) | 1993-08-23 |
| GR3005937T3 (en) | 1993-06-07 |
| AU600413B2 (en) | 1990-08-09 |
| BR8903257A (en) | 1990-09-25 |
| EP0386384B1 (en) | 1992-09-30 |
| DK320189D0 (en) | 1989-06-28 |
| IE63394B1 (en) | 1995-04-19 |
| PT91078B (en) | 1995-07-03 |
| ES2034726T3 (en) | 1993-04-01 |
| NO172968B (en) | 1993-06-28 |
| NO172968C (en) | 1993-10-06 |
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