GB1311037A - Method of hydrostatic extrusion - Google Patents
Method of hydrostatic extrusionInfo
- Publication number
- GB1311037A GB1311037A GB1207871*[A GB1207871A GB1311037A GB 1311037 A GB1311037 A GB 1311037A GB 1207871 A GB1207871 A GB 1207871A GB 1311037 A GB1311037 A GB 1311037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- holder
- billet
- valve
- chamber
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/007—Hydrostatic extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Forging (AREA)
Abstract
1311037 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 29 April 1971 [30 April 1970] 12078/71 Heading B3P A hydrostatic extrusion press has a billet holder 15 slidable axially in the pressure chamber 2 and the holder has a relief valve 19 so that a part 16a of the pressure chamber bore can be pressurized intially while the other part 16b remains full of air so that the fluid is not heated and boiled for a long period by a hot billet 27 to be extruded. The bore part 16a is initially pressurized by a pump 37a through a duct 35 which has a relief valve 42 to keep the pressure below the opening pressure of the valve 19 in the holder. When the billet 27 and the die 9 have been fully engaged with the chamber 2 a slide valve 34 is actuated to connect the bore part 16a to a high pressure pump 38a. The higher pressure opens the valve 19 in the holder to pressurize the bore part 16b, and the pressuregenerating punch 5 is advanced to cause hydrostatic extrusion. After the extrusion the slide valve 52 is activated so that pressure fluid is sprayed into the bore part 16b to cool the extrusion fluid, the billet and the die. The chamber 2 is then retracted to allow the discard to be cut from the extruded product by a machine (60), Fig. 9 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE06011/70A SE339927B (en) | 1970-04-30 | 1970-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1311037A true GB1311037A (en) | 1973-03-21 |
Family
ID=20267721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1207871*[A Expired GB1311037A (en) | 1970-04-30 | 1971-04-29 | Method of hydrostatic extrusion |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3702556A (en) |
| JP (1) | JPS4911988B1 (en) |
| AT (1) | AT308494B (en) |
| BE (1) | BE761087A (en) |
| CH (1) | CH526349A (en) |
| DE (1) | DE2114587A1 (en) |
| DK (1) | DK140047B (en) |
| FR (1) | FR2090992A5 (en) |
| GB (1) | GB1311037A (en) |
| IE (1) | IE35173B1 (en) |
| NL (1) | NL7105806A (en) |
| NO (1) | NO141149C (en) |
| SE (1) | SE339927B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE364650B (en) * | 1971-03-15 | 1974-03-04 | Asea Ab | |
| SE358098B (en) * | 1971-03-15 | 1973-07-23 | Asea Ab | |
| US3774431A (en) * | 1972-07-10 | 1973-11-27 | Asea Ab | Method of manufacturing copper tubes by means of hydrostatic extrusion and press equipment for carrying out the method |
| SE408378B (en) * | 1972-09-19 | 1979-06-11 | Kobe Steel Ltd | HYDROSTATIC EXTENSION KIT AND SET IMPLEMENT DEVICE |
| JPS5143468B2 (en) * | 1972-09-19 | 1976-11-22 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR95026E (en) * | 1964-07-03 | 1970-03-27 | Commissariat Energie Atomique | Shutter system for spinning enclosure. |
| US3354685A (en) * | 1964-07-31 | 1967-11-28 | Atomic Energy Authority Uk | Hydrostatic extrusion apparatus |
| US3397562A (en) * | 1966-04-08 | 1968-08-20 | Western Electric Co | Method and apparatus for the extrusion of metal tubes and billets by an initial impulsive force and the subsequent application of uniform extrusion forces |
| SE320948B (en) * | 1967-10-06 | 1970-02-23 | Asea Ab |
-
1970
- 1970-04-30 SE SE06011/70A patent/SE339927B/xx unknown
- 1970-12-28 JP JP45125170A patent/JPS4911988B1/ja active Pending
- 1970-12-30 BE BE761087A patent/BE761087A/en unknown
-
1971
- 1971-02-25 US US118684A patent/US3702556A/en not_active Expired - Lifetime
- 1971-03-25 DE DE19712114587 patent/DE2114587A1/en active Pending
- 1971-04-22 NO NO1502/71A patent/NO141149C/en unknown
- 1971-04-26 CH CH612071A patent/CH526349A/en not_active IP Right Cessation
- 1971-04-27 IE IE529/71A patent/IE35173B1/en unknown
- 1971-04-28 NL NL7105806A patent/NL7105806A/xx not_active Application Discontinuation
- 1971-04-28 AT AT367571A patent/AT308494B/en not_active IP Right Cessation
- 1971-04-28 DK DK203971AA patent/DK140047B/en unknown
- 1971-04-29 GB GB1207871*[A patent/GB1311037A/en not_active Expired
- 1971-04-30 FR FR7115527A patent/FR2090992A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2114587A1 (en) | 1971-11-18 |
| FR2090992A5 (en) | 1972-01-14 |
| NL7105806A (en) | 1971-11-02 |
| IE35173B1 (en) | 1975-11-26 |
| IE35173L (en) | 1971-10-30 |
| AT308494B (en) | 1973-07-10 |
| CH526349A (en) | 1972-08-15 |
| BE761087A (en) | 1971-05-27 |
| DK140047B (en) | 1979-06-11 |
| JPS4911988B1 (en) | 1974-03-20 |
| DK140047C (en) | 1979-11-12 |
| SE339927B (en) | 1971-11-01 |
| NO141149B (en) | 1979-10-15 |
| NO141149C (en) | 1980-01-23 |
| US3702556A (en) | 1972-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |