SE8802886L - SEAT AND DEVICE FOR CASTING METAL - Google Patents
SEAT AND DEVICE FOR CASTING METALInfo
- Publication number
- SE8802886L SE8802886L SE8802886A SE8802886A SE8802886L SE 8802886 L SE8802886 L SE 8802886L SE 8802886 A SE8802886 A SE 8802886A SE 8802886 A SE8802886 A SE 8802886A SE 8802886 L SE8802886 L SE 8802886L
- Authority
- SE
- Sweden
- Prior art keywords
- mould
- metal
- molten metal
- enclosed
- casting
- 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
- 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
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adornments (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Molten metal is drawn upwards through one or more inlets into a mould in the process. A vacuum is applied so that the molten metal fills the mould and rises into at least one riser pipe. The metal in the inlets to the mould is caused to harden as soon as a required level in the riser has been reached, so that the molten metal is enclosed in the mould. The mould is then pressurised. The hardening of the metal in the inlet is produced by a redn. in the velocity, or a cessation, of the entry to the mould and is in the form of a slot whose width is less than that of the thinnest section of the shape being cast. The mould may be enclosed in a gas-tight cover for the application of the vacuum and pressurisation. USE/ADVANTAGE - Used in the casting of metal shapes for various uses. The molten metal is enclosed in the mould before it can harden, so that the application of an external pressure can be used to ensure that all of the mould is completely filled. No valves are used, thus making the process simple and economical, since it is difficult for valves to survive the temps. involved in the casting of molten metals.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8802886A SE465711B (en) | 1988-08-12 | 1988-08-12 | SEAT AND DEVICE FOR CASTING METAL |
DE19893925373 DE3925373A1 (en) | 1988-08-12 | 1989-08-01 | Casting metal shapes - involves metal drawn into mould by vacuum and then subjected to positive pressure |
DK396689A DK396689A (en) | 1988-08-12 | 1989-08-11 | PROCEDURE FOR MOLDING METAL AND APPARATUS FOR USE IN EXERCISING THE PROCEDURE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8802886A SE465711B (en) | 1988-08-12 | 1988-08-12 | SEAT AND DEVICE FOR CASTING METAL |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8802886D0 SE8802886D0 (en) | 1988-08-12 |
SE8802886L true SE8802886L (en) | 1990-02-13 |
SE465711B SE465711B (en) | 1991-10-21 |
Family
ID=20373068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8802886A SE465711B (en) | 1988-08-12 | 1988-08-12 | SEAT AND DEVICE FOR CASTING METAL |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3925373A1 (en) |
DK (1) | DK396689A (en) |
SE (1) | SE465711B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2830714B2 (en) * | 1993-10-12 | 1998-12-02 | トヨタ自動車株式会社 | Vacuum casting equipment |
US5355934A (en) * | 1992-07-22 | 1994-10-18 | Toyota Jidosha Kabushiki Kaisha | Low pressure casting apparatus |
US5509458A (en) * | 1993-01-19 | 1996-04-23 | Hitachi Metals, Ltd. | Vacuum casting apparatus and method using the same |
DE19645104B4 (en) * | 1996-10-31 | 2007-12-20 | Pfeiffer Vacuum Gmbh | Method for carrying out a process in a process space subjected to negative pressure |
RS57721B1 (en) * | 2015-02-17 | 2018-12-31 | Mei Ta Industrial Co Ltd | Negative pressure updraught pouring method |
CN106563787A (en) * | 2015-10-12 | 2017-04-19 | 天津达祥精密工业有限公司 | Negative-pressure up-draft casting device |
CN110014135B (en) * | 2019-03-20 | 2024-06-25 | 天津新伟祥工业有限公司 | Plasma constant-temperature negative-pressure upward suction casting equipment and method thereof |
-
1988
- 1988-08-12 SE SE8802886A patent/SE465711B/en not_active IP Right Cessation
-
1989
- 1989-08-01 DE DE19893925373 patent/DE3925373A1/en not_active Withdrawn
- 1989-08-11 DK DK396689A patent/DK396689A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DK396689D0 (en) | 1989-08-11 |
DE3925373A1 (en) | 1990-02-15 |
DK396689A (en) | 1990-02-13 |
SE8802886D0 (en) | 1988-08-12 |
SE465711B (en) | 1991-10-21 |
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