JPS4988763A - - Google Patents
Info
- Publication number
- JPS4988763A JPS4988763A JP48033363A JP3336373A JPS4988763A JP S4988763 A JPS4988763 A JP S4988763A JP 48033363 A JP48033363 A JP 48033363A JP 3336373 A JP3336373 A JP 3336373A JP S4988763 A JPS4988763 A JP S4988763A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
- B21B17/10—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills in a continuous process
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2259657A DE2259657A1 (de) | 1972-12-01 | 1972-12-01 | Verfahren und anlage zum auswalzen und glaetten von rohren in einem stopfenwalzwerk |
| US00394910A US3823594A (en) | 1972-12-01 | 1973-09-06 | Rolling of tubular blooms to produce tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4988763A true JPS4988763A (xx) | 1974-08-24 |
Family
ID=25764191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48033363A Pending JPS4988763A (xx) | 1972-12-01 | 1973-03-23 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3823594A (xx) |
| JP (1) | JPS4988763A (xx) |
| CA (1) | CA970601A (xx) |
| DE (1) | DE2259657A1 (xx) |
| FR (1) | FR2208725B1 (xx) |
| GB (1) | GB1386034A (xx) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US424213A (en) * | 1890-03-25 | Mandrel for rolling seamless tubes | ||
| US311477A (en) * | 1885-02-03 | And james a | ||
| GB351275A (en) * | 1929-09-13 | 1931-06-25 | Mannesmann Ag | Improved method of rolling tubes on plug rolling mills |
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1972
- 1972-12-01 DE DE2259657A patent/DE2259657A1/de active Pending
-
1973
- 1973-03-20 GB GB1319473A patent/GB1386034A/en not_active Expired
- 1973-03-23 JP JP48033363A patent/JPS4988763A/ja active Pending
- 1973-08-15 CA CA178,860A patent/CA970601A/en not_active Expired
- 1973-09-06 US US00394910A patent/US3823594A/en not_active Expired - Lifetime
- 1973-11-07 FR FR7339617A patent/FR2208725B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3823594A (en) | 1974-07-16 |
| FR2208725B1 (xx) | 1976-11-19 |
| DE2259657A1 (de) | 1974-06-06 |
| GB1386034A (en) | 1975-03-05 |
| FR2208725A1 (xx) | 1974-06-28 |
| CA970601A (en) | 1975-07-08 |