ZA708022B - Improvement in the hot piercing of metal billets - Google Patents
Improvement in the hot piercing of metal billetsInfo
- Publication number
- ZA708022B ZA708022B ZA708022A ZA708022A ZA708022B ZA 708022 B ZA708022 B ZA 708022B ZA 708022 A ZA708022 A ZA 708022A ZA 708022 A ZA708022 A ZA 708022A ZA 708022 B ZA708022 B ZA 708022B
- Authority
- ZA
- South Africa
- Prior art keywords
- improvement
- hot piercing
- metal billets
- billets
- metal
- Prior art date
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 (en) | 1969-11-26 | 1969-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA708022B true ZA708022B (en) | 1971-08-25 |
Family
ID=9043662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA708022A ZA708022B (en) | 1969-11-26 | 1970-11-26 | Improvement in the hot piercing of metal billets |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3712103A (en) |
| AT (1) | AT303493B (en) |
| DE (1) | DE2057629A1 (en) |
| FR (1) | FR2069879A1 (en) |
| GB (1) | GB1297690A (en) |
| ZA (1) | ZA708022B (en) |
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 |
| WO2006134957A1 (en) * | 2005-06-14 | 2006-12-21 | Sumitomo Metal Industries, Ltd. | Boring machine, plug, and method of manufacturing seamless steel tube |
| JP4518205B2 (en) * | 2008-12-01 | 2010-08-04 | 住友金属工業株式会社 | Manufacturing method of upper glass forming material for hot drilling and billet for hot extrusion pipe making |
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 (en) * | 1939-10-03 | 1942-11-25 | Mannesmann Ag | Process for the extrusion of pipes |
| 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 (en) * | 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/en not_active IP Right Cessation
- 1970-11-24 DE DE19702057629 patent/DE2057629A1/en active Pending
- 1970-11-24 GB GB1297690D patent/GB1297690A/en not_active Expired
- 1970-11-26 ZA ZA708022A patent/ZA708022B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3712103A (en) | 1973-01-23 |
| DE2057629A1 (en) | 1971-06-09 |
| AT303493B (en) | 1972-10-15 |
| FR2069879A1 (en) | 1971-09-10 |
| GB1297690A (en) | 1972-11-29 |
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