FR2357801A1 - Vanne d'equilibrage de pression a fonctionnement automatique - Google Patents
Vanne d'equilibrage de pression a fonctionnement automatiqueInfo
- Publication number
- FR2357801A1 FR2357801A1 FR7639176A FR7639176A FR2357801A1 FR 2357801 A1 FR2357801 A1 FR 2357801A1 FR 7639176 A FR7639176 A FR 7639176A FR 7639176 A FR7639176 A FR 7639176A FR 2357801 A1 FR2357801 A1 FR 2357801A1
- Authority
- FR
- France
- Prior art keywords
- bore
- piston
- automatic pressure
- pressure balancing
- balancing valve
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
- B30B11/002—Isostatic press chambers; Press stands therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
- B22F2003/153—Hot isostatic pressing apparatus specific to HIP
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Press Drives And Press Lines (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
L'invention concerne une vanne d'équilibrage de pression, à fonctionnement automatique. La vanne comprend un corps 32, un piston 35 coulissant dans l'alésage du corps et définissant avec lui un anneau de commande d'écoulement de fluide, deux chambres formées dans l'alésage de chaque côté du piston, des premier et second orifices 38 et 39 communiquant avec les chambres, et un troisième orifice 36 communiquant avec l'alésage, de sorte qu'une différence de pression entre les chambres provoque un coulissement du piston 35 vers la chambre basse pression. L'invention s'applique aux vannes de pressurisation et de dépressurisation notamment pour presse isostatique.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/574,963 US3973886A (en) | 1975-05-06 | 1975-05-06 | Hot isostatic press |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2357801A1 true FR2357801A1 (fr) | 1978-02-03 |
Family
ID=24298352
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7613393A Withdrawn FR2310178A1 (fr) | 1975-05-06 | 1976-05-05 | Presse isostatique chaude |
FR7639176A Withdrawn FR2357801A1 (fr) | 1975-05-06 | 1976-12-27 | Vanne d'equilibrage de pression a fonctionnement automatique |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7613393A Withdrawn FR2310178A1 (fr) | 1975-05-06 | 1976-05-05 | Presse isostatique chaude |
Country Status (7)
Country | Link |
---|---|
US (1) | US3973886A (fr) |
JP (1) | JPS51137976A (fr) |
BE (1) | BE841511A (fr) |
DE (1) | DE2619121C3 (fr) |
FR (2) | FR2310178A1 (fr) |
GB (1) | GB1521813A (fr) |
SE (1) | SE7605161L (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264556A (en) * | 1979-08-27 | 1981-04-28 | Kaplesh Kumar | Thermal isostatic densifying method and apparatus |
DE3826651A1 (de) * | 1988-08-05 | 1990-02-08 | Pfeiffer Vakuumtechnik | Abdichtung fuer eine thermische isolation |
US6883220B2 (en) | 2002-07-17 | 2005-04-26 | The Boeing Company | Method for forming a tube-walled article |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423264A (en) * | 1943-04-28 | 1947-07-01 | Hydraulic Control Engineering | Equalizing valve |
US2460774A (en) * | 1943-09-18 | 1949-02-01 | Bendix Aviat Corp | Valve |
US2956577A (en) * | 1956-11-16 | 1960-10-18 | New York Air Brake Co | Valve |
US2942583A (en) * | 1958-03-03 | 1960-06-28 | New York Air Brake Co | Pressure graduating control valve |
US3363037A (en) * | 1965-07-01 | 1968-01-09 | Atomic Energy Commission Usa | High-temperature isostatic pressing of articles |
US3462797A (en) * | 1966-11-09 | 1969-08-26 | Atomic Energy Commission | Fabrication of elongated products |
US3419935A (en) * | 1966-12-19 | 1969-01-07 | Atomic Energy Commission Usa | Hot-isostatic-pressing apparatus |
US3497578A (en) * | 1967-12-13 | 1970-02-24 | Us Navy | Method of forming articles to close dimensional tolerances in a hydrostatic press |
US3523148A (en) * | 1968-01-04 | 1970-08-04 | Battelle Development Corp | Isostatic pressure transmitting apparatus and method |
US3555597A (en) * | 1968-08-05 | 1971-01-19 | Du Pont | Apparatus for hot pressing refractory materials |
SE315085B (fr) * | 1968-10-24 | 1969-09-22 | Asea Ab | |
US3571850A (en) * | 1969-04-15 | 1971-03-23 | Atomic Energy Commission | Hot-isostatic-pressing apparatus |
US3741755A (en) * | 1971-11-04 | 1973-06-26 | D Allen | Method of isostatically pressing metal powder into desired metal shapes |
US3869233A (en) * | 1973-05-11 | 1975-03-04 | Nat Forge Co | Apparatus for rapid isostatic pressing |
US3879160A (en) * | 1974-08-06 | 1975-04-22 | Us Army | Isostatic curing apparatus |
-
1975
- 1975-05-06 US US05/574,963 patent/US3973886A/en not_active Expired - Lifetime
-
1976
- 1976-05-03 DE DE2619121A patent/DE2619121C3/de not_active Expired
- 1976-05-04 JP JP51051241A patent/JPS51137976A/ja active Pending
- 1976-05-05 GB GB18454/76A patent/GB1521813A/en not_active Expired
- 1976-05-05 SE SE7605161A patent/SE7605161L/xx unknown
- 1976-05-05 FR FR7613393A patent/FR2310178A1/fr not_active Withdrawn
- 1976-05-06 BE BE166773A patent/BE841511A/fr unknown
- 1976-12-27 FR FR7639176A patent/FR2357801A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE7605161L (sv) | 1976-11-07 |
DE2619121C3 (de) | 1979-06-28 |
US3973886A (en) | 1976-08-10 |
BE841511A (fr) | 1976-11-08 |
FR2310178A1 (fr) | 1976-12-03 |
DE2619121A1 (de) | 1976-11-18 |
GB1521813A (en) | 1978-08-16 |
JPS51137976A (en) | 1976-11-29 |
DE2619121B2 (fr) | 1978-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |