GB1297690A - - Google Patents
Info
- Publication number
- GB1297690A GB1297690A GB1297690DA GB1297690A GB 1297690 A GB1297690 A GB 1297690A GB 1297690D A GB1297690D A GB 1297690DA GB 1297690 A GB1297690 A GB 1297690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- billet
- piercing
- ring
- extrusion
- extruding
- 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
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Lubricants (AREA)
- Extrusion Of Metal (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6940768A FR2069879A1 (es) | 1969-11-26 | 1969-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297690A true GB1297690A (es) | 1972-11-29 |
Family
ID=9043662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1297690D Expired GB1297690A (es) | 1969-11-26 | 1970-11-24 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3712103A (es) |
AT (1) | AT303493B (es) |
DE (1) | DE2057629A1 (es) |
FR (1) | FR2069879A1 (es) |
GB (1) | GB1297690A (es) |
ZA (1) | ZA708022B (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4085606A (en) * | 1976-12-09 | 1978-04-25 | Westinghouse Electric Corporation | Hydrostatic extrusion apparatus for producing hollow elongated bodies of rectangular cross section |
CN100551564C (zh) * | 2005-06-14 | 2009-10-21 | 住友金属工业株式会社 | 一种穿孔机和用于穿孔机的顶头及无缝管的制造方法 |
JP4518205B2 (ja) * | 2008-12-01 | 2010-08-04 | 住友金属工業株式会社 | 熱間穿孔用上面ガラス成形材および熱間押出製管用ビレットの製造方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1802785A (en) * | 1924-10-11 | 1931-04-28 | Singer Fritz | Method of extruding long seamless tubing |
DE728356C (de) * | 1939-10-03 | 1942-11-25 | Mannesmann Ag | Verfahren zum Strangpressen von Rohren |
US2320071A (en) * | 1940-11-23 | 1943-05-25 | Ferrex Corp | Apparatus for extruding metals |
GB1150171A (en) * | 1966-04-19 | 1969-04-30 | Chesterfield Tube Company Ltd | Formation of Hollow Metal Billets. |
US3580038A (en) * | 1968-04-03 | 1971-05-25 | Cefilac | Extrusion mandrel and method |
FR1601305A (es) * | 1968-06-26 | 1970-08-17 |
-
1969
- 1969-11-26 FR FR6940768A patent/FR2069879A1/fr active Pending
-
1970
- 1970-11-16 US US00089608A patent/US3712103A/en not_active Expired - Lifetime
- 1970-11-23 AT AT10519/70A patent/AT303493B/de not_active IP Right Cessation
- 1970-11-24 DE DE19702057629 patent/DE2057629A1/de active Pending
- 1970-11-24 GB GB1297690D patent/GB1297690A/en not_active Expired
- 1970-11-26 ZA ZA708022A patent/ZA708022B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2057629A1 (de) | 1971-06-09 |
FR2069879A1 (es) | 1971-09-10 |
US3712103A (en) | 1973-01-23 |
AT303493B (de) | 1972-10-15 |
ZA708022B (en) | 1971-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |