GB1295216A - - Google Patents
Info
- Publication number
- GB1295216A GB1295216A GB1295216DA GB1295216A GB 1295216 A GB1295216 A GB 1295216A GB 1295216D A GB1295216D A GB 1295216DA GB 1295216 A GB1295216 A GB 1295216A
- Authority
- GB
- United Kingdom
- Prior art keywords
- billet
- die
- mandrel
- cylinder
- holder
- 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
- B21C23/21—Presses specially adapted for extruding metal
-
- 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)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Press Drives And Press Lines (AREA)
Abstract
1295216 Hydrostatic extrusion ALLMANNA SVENSKA ELEKTRISKA AB 26 May 1971 [27 May 1970] 17157/71 Heading B3P An hydrostatic extrusion press of the type with a pressure cylinder 2 movable axially in a press stand 1 over a billet 36 and a die 10 before the cylinder is filled has a mandrel assembly composed of a headed mandrel 23, a holder 24 and a support tube 22. The assembly is permanently fixed in the cylinder and the tube limits the insertion of the die into the cylinder to position the die and the mandrel for tube extrusion. The support tube 22 takes up the forces exerted on the mandrel 23 during extrusion. An annular billet holder 30 is slidable on the mandrel 23. The billet holder 30 has a spring-biased relief valve 33 or a pair of elastomeric flanges (34), (35), Figs. 5 and 6 (not shown), so that initially the fluid pressure in the space 6b causes the billet holder to urge the die and the billet against a die holder 11 until the valve opens or the flanges deform. The fluid is thus initially prevented from reading the cylinder space 6b to avoid unnecessary cooling of the billet by the fluid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE725270A SE339204B (en) | 1970-05-27 | 1970-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1295216A true GB1295216A (en) | 1972-11-08 |
Family
ID=20270865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1295216D Expired GB1295216A (en) | 1970-05-27 | 1971-05-26 |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5429461B1 (en) |
| AT (1) | AT309956B (en) |
| BE (1) | BE766367A (en) |
| CA (1) | CA931112A (en) |
| CH (1) | CH540075A (en) |
| FR (1) | FR2093775A5 (en) |
| GB (1) | GB1295216A (en) |
| IE (1) | IE35387B1 (en) |
| NL (1) | NL165388C (en) |
| NO (1) | NO136912C (en) |
| SE (1) | SE339204B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE409003B (en) * | 1977-11-22 | 1979-07-23 | Asea Ab | PRESSURE FOR HYDROSTATIC PRESSURE OF TUBE |
-
1970
- 1970-05-27 SE SE725270A patent/SE339204B/xx unknown
-
1971
- 1971-04-24 JP JP3482371A patent/JPS5429461B1/ja active Pending
- 1971-04-27 BE BE766367A patent/BE766367A/en unknown
- 1971-05-17 NL NL7106746A patent/NL165388C/en not_active IP Right Cessation
- 1971-05-19 CH CH743571A patent/CH540075A/en not_active IP Right Cessation
- 1971-05-24 NO NO193171A patent/NO136912C/en unknown
- 1971-05-24 IE IE65171A patent/IE35387B1/en unknown
- 1971-05-25 AT AT452071A patent/AT309956B/en not_active IP Right Cessation
- 1971-05-26 FR FR7119122A patent/FR2093775A5/fr not_active Expired
- 1971-05-26 GB GB1295216D patent/GB1295216A/en not_active Expired
- 1971-05-26 CA CA113983A patent/CA931112A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2125570A1 (en) | 1971-12-09 |
| DE2125570B2 (en) | 1976-10-07 |
| AT309956B (en) | 1973-09-10 |
| NL165388B (en) | 1980-11-17 |
| NO136912C (en) | 1977-11-30 |
| BE766367A (en) | 1971-09-16 |
| CH540075A (en) | 1973-08-15 |
| SE339204B (en) | 1971-10-04 |
| JPS5429461B1 (en) | 1979-09-22 |
| IE35387L (en) | 1971-11-27 |
| FR2093775A5 (en) | 1972-01-28 |
| CA931112A (en) | 1973-07-31 |
| NL165388C (en) | 1981-04-15 |
| IE35387B1 (en) | 1976-02-04 |
| NO136912B (en) | 1977-08-22 |
| NL7106746A (en) | 1971-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 414F | Notice of opposition given (sect. 14/1949) | ||
| 414B | Case decided by the comptroller ** grants allowed (sect. 14/1949) | ||
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |