GB410044A - Improvements in pilger rolls - Google Patents
Improvements in pilger rollsInfo
- Publication number
- GB410044A GB410044A GB34989/33A GB3498933A GB410044A GB 410044 A GB410044 A GB 410044A GB 34989/33 A GB34989/33 A GB 34989/33A GB 3498933 A GB3498933 A GB 3498933A GB 410044 A GB410044 A GB 410044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- pass
- zone
- rolls
- billet
- 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
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
- B21B21/02—Rollers therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
410,044. Rolling. MANNESMANNROHREN-WERKE, 1B, Berger Ufer, D³sseldorf, Germany. Dec. 12, 1933, No. 34989. Convention date, Dec. 12, 1932. [Class 83 (iv).] In pilger rolling the spread ing of the billet into the side clearances during one pass, causes an uneven load on the trough of the grooves when the billet is rotated through 90‹ and passes through the next pass, so this is compensated for by shaping the grooves so that the pass is roughly oval at the beginning of the bite and then merges into a circular pass towards the end of the working zone. Fig. 4 shows a section of a roll in which alpha is the reducing zone, # the polishing zone and gamma the exit zone. Fig. 6 shows the cross sections of the grooves in radial planes for values of the angle alpha, so that the lengths of the curves are substantially proportional to the amount of material to be displaced so as to give uniform drawing out pressures at all points on the rolls. For rolls with clearance zones at the troughs of the grooves as well as at the sides as in Specification 369,627, the cross sections of the grooves are made to accommodate the previous spread of the metal into all these clearances when the work is rotated for the next pass. German Specification 523,091 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE410044X | 1932-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB410044A true GB410044A (en) | 1934-05-10 |
Family
ID=6422734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34989/33A Expired GB410044A (en) | 1932-12-12 | 1933-12-12 | Improvements in pilger rolls |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR765381A (en) |
| GB (1) | GB410044A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172231A (en) * | 1985-03-13 | 1986-09-17 | Frohling Gmbh Walzwerksmaschin | Process and apparatus for reducing the cross-section of elongate material, such as hot continuously cast material |
-
1933
- 1933-12-12 FR FR765381D patent/FR765381A/en not_active Expired
- 1933-12-12 GB GB34989/33A patent/GB410044A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172231A (en) * | 1985-03-13 | 1986-09-17 | Frohling Gmbh Walzwerksmaschin | Process and apparatus for reducing the cross-section of elongate material, such as hot continuously cast material |
Also Published As
| Publication number | Publication date |
|---|---|
| FR765381A (en) | 1934-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES344113A1 (en) | Rolling of metal billets | |
| ATE1622T1 (en) | TANDEM ROLLING MILL. | |
| GB1334757A (en) | Reinforcing bars for concrete and their manufacture | |
| GB410044A (en) | Improvements in pilger rolls | |
| GB1349682A (en) | Method and apparatus for rough-rolling a cast slab | |
| AT291454B (en) | Rollers and rollers, in particular for continuous casting plants, strand forming plants and for hot rolling mills operated at low rolling speeds | |
| SE7409861L (en) | ||
| GB1223164A (en) | Rolling mill roll for use in hot rolling mill | |
| GB1187059A (en) | Methods and Apparatus for Producing Steel Channel Sections. | |
| GB445248A (en) | Process for the manufacture of seamless metal tubes | |
| GB1375317A (en) | ||
| GB1132360A (en) | Profiling of solid articles by rolling | |
| GB472002A (en) | Improvements in or relating to the production of rolled steel billets or sections | |
| ES385500A1 (en) | Assembly and process for manufacturing tubes of polyvinyl chloride and tubes obtained by the process | |
| GB520920A (en) | Improvements in metal rolling | |
| GB1326809A (en) | Method for the production of restoration of working rolls for hot rolling of metallic flat products | |
| GB1226221A (en) | ||
| SU55689A1 (en) | The method of rolling iron | |
| GB1179952A (en) | Profiling of Annular Workpieces. | |
| JPS56111504A (en) | Strip mill | |
| GB1111576A (en) | Process for gauge control in hot rolled sheet and strip | |
| GB460866A (en) | Improvements in wide strip rolling mills | |
| GB1211286A (en) | Improvements in and relating to method and equipment for cross wedge rolling | |
| SU417199A1 (en) | ||
| GB578066A (en) | Improvements in or relating to drawing dies |