GB331476A - - Google Patents
Info
- Publication number
- GB331476A GB331476A GB1584/30A GB158430A GB331476A GB 331476 A GB331476 A GB 331476A GB 1584/30 A GB1584/30 A GB 1584/30A GB 158430 A GB158430 A GB 158430A GB 331476 A GB331476 A GB 331476A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- tube
- rolls
- working surfaces
- circular
- 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
- 238000005096 rolling process Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/06—Rolling hollow basic material, e.g. Assel mills
- B21B19/08—Enlarging tube diameter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
331,476. Mannesmannr÷hren-Werke. Jan. 18, 1929, [Convention date]. Tubes.-A tube d is expanded by rolling to oval shape over a slightly conical mandrel c between skew rolls b the working surfaces a of which are parallel, the tube then being restored to a circular but enlarged size by exterior or interior guides after leaving the rolls. Alternatively the mandrel c, Fig. 5, may be cylindrical and the working surfaces of the rolls may taper towards each other. The guides for restoring the tube from oval to circular form may comprise a mandrel f with a flared tube e, Fig. 7, or equivalent sections thereof or a number of circumferential loose and/or driven rollers g, Fig. 10, with oblique axes to assist the feed. In Fig. 13 the reshaping to circular is done by an extension l<1> of the wall-thinning mandrel co-operating with special additional working surfaces on the main rolls.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE331476T | 1929-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB331476A true GB331476A (en) | 1930-07-03 |
Family
ID=31894874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1584/30A Expired GB331476A (en) | 1929-01-18 | 1930-01-16 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE366982A (en) |
| FR (1) | FR688338A (en) |
| GB (1) | GB331476A (en) |
-
0
- BE BE366982D patent/BE366982A/xx unknown
-
1930
- 1930-01-16 FR FR688338D patent/FR688338A/en not_active Expired
- 1930-01-16 GB GB1584/30A patent/GB331476A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR688338A (en) | 1930-08-21 |
| BE366982A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB331476A (en) | ||
| US1597206A (en) | Method of producing expansible-collapsible elements | |
| GB203009A (en) | An improved method of reducing tubes | |
| GB208285A (en) | Process and apparatus for the manufacture of metal tubes | |
| US1728016A (en) | Method for manufacturing tubes with enlarged ends | |
| GB334047A (en) | Tube expanding apparatus | |
| GB157168A (en) | Method of making tubes with uniform smooth internal surfaces | |
| GB506597A (en) | Improvements relating to the production of metal tubes in inclined rolling mills | |
| GB363845A (en) | A method for the production of rolled rims upon the ends of pipes | |
| GB350360A (en) | Process for the production of seamless tubes | |
| GB346636A (en) | Method of changing the stopper in stopper rolling mills | |
| GB321529A (en) | Improvements in or in connection with apparatus for the manufacture of metal tubes and other tubular metal articles | |
| GB294103A (en) | ||
| GB285896A (en) | ||
| GB195712A (en) | Improvements relating to the rolling of hollow bodies | |
| GB323058A (en) | Manufacture of corrugated tubes | |
| GB363283A (en) | Improvements in rolling mills for widening out tubes | |
| GB327933A (en) | Improved process of manufacturing cylindrical stepped open shells | |
| GB369627A (en) | A process for the production of seamless tubes on a pilger rolling mill and apparatus therefor | |
| GB384120A (en) | Improvements in and relating to tube rolling mills | |
| GB495361A (en) | Improvements in methods of and means for the production of ribbed tubing rolled on a mandrel | |
| GB516678A (en) | An improved method of and apparatus for making pipes | |
| GB290334A (en) | Process for the manufacture of seamless tubes | |
| US1498130A (en) | Tube expanding and smoothing mills | |
| GB288359A (en) | Improvements in and process for reducing the external diameter of metal tubes and maintaining, or reducing, their gauge |