GB1193390A - An improved method and apparatus for the manufacture of Steel Tubes - Google Patents
An improved method and apparatus for the manufacture of Steel TubesInfo
- Publication number
- GB1193390A GB1193390A GB37207/68A GB3720768A GB1193390A GB 1193390 A GB1193390 A GB 1193390A GB 37207/68 A GB37207/68 A GB 37207/68A GB 3720768 A GB3720768 A GB 3720768A GB 1193390 A GB1193390 A GB 1193390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aug
- wall thickness
- rolls
- fins
- tube
- 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
- B21B21/005—Pilgrim-step tube-rolling, i.e. pilger mills with reciprocating stand, e.g. driving the stand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/202—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with guides parallel to the tube axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
1,193,390. Rolling tubes. MANNESMANN A.G. 5 Aug., 1968 [3 Aug., 1967; 11 Aug., 1967], No. 37207/68. Heading B3M. A steel tube having longitudinal external fins is produced by the grooved rolls 13, 14 of a pilgrim rolling mill, the rolls firstly reducing the wall thickness of a tubular bloom 12, while initially forming fins 15 (Fig. 1), and then bring- ing the fins to their final dimensions without altering the tube wall thickness (Figs. 2, 3). A wholly or partly tapered mandrel 17 is used in conjunction with the rolls, the relationship at any moment between the diameter of the mandrel and the corresponding diameter of the roll pass determining the wall thickness of the tube.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0075032 | 1967-08-03 | ||
DE1967M0075115 DE1279600B (en) | 1967-08-11 | 1967-08-11 | Process and roll calibration for rolling seamless tubes with external longitudinal ribs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1193390A true GB1193390A (en) | 1970-05-28 |
Family
ID=25988073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37207/68A Expired GB1193390A (en) | 1967-08-03 | 1968-08-05 | An improved method and apparatus for the manufacture of Steel Tubes |
Country Status (4)
Country | Link |
---|---|
US (1) | US3566655A (en) |
JP (1) | JPS4842542B1 (en) |
FR (1) | FR1576793A (en) |
GB (1) | GB1193390A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3688540A (en) * | 1969-07-29 | 1972-09-05 | Superior Tube Co | Tube rolling mill employing a tapered mandrel and a cluster of rolls that each have specially designed tube contacting grooves |
GB1557872A (en) * | 1976-09-15 | 1979-12-12 | Shevchenko A A | Others method of continuous tube rolling and rolling mill therefor |
JP5183084B2 (en) * | 2007-03-14 | 2013-04-17 | 株式会社 クニテック | Cylindrical product, manufacturing method and manufacturing apparatus thereof |
CN114082803A (en) * | 2021-11-22 | 2022-02-25 | 韩维新 | Production process and cold-drawing die for ribbed thin-wall cladding tube |
-
1968
- 1968-08-02 JP JP43054390A patent/JPS4842542B1/ja active Pending
- 1968-08-02 FR FR1576793D patent/FR1576793A/fr not_active Expired
- 1968-08-05 GB GB37207/68A patent/GB1193390A/en not_active Expired
- 1968-08-05 US US750239A patent/US3566655A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3566655A (en) | 1971-03-02 |
JPS4842542B1 (en) | 1973-12-13 |
FR1576793A (en) | 1969-08-01 |
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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 |