GB1389035A - Method of and apparatus for manufacturing copper tubes by means of hydrostatic extrusion - Google Patents
Method of and apparatus for manufacturing copper tubes by means of hydrostatic extrusionInfo
- Publication number
- GB1389035A GB1389035A GB3486372A GB3486372A GB1389035A GB 1389035 A GB1389035 A GB 1389035A GB 3486372 A GB3486372 A GB 3486372A GB 3486372 A GB3486372 A GB 3486372A GB 1389035 A GB1389035 A GB 1389035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- die
- copper
- billet
- water
- 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
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/007—Hydrostatic extrusion
-
- 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
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Metal Extraction Processes (AREA)
Abstract
1389035 Extruding ALLMANNA SVENSKA ELEKTRISKA AB 26 July 1972 [27 July 1971] 34863/72 Heading B3P A tubular copper billet is formed into a tube by heating the billet and hydrostatically extruding it through a die from which it is led to a cooling zone spaced from the die sufficiently to allow recrystallization of the copper before cooling. The copper tube is guided from the die by a tube 2 which is supplied with inert gas, e.g. nitrogen from a cylinder 4 near the die. The guide tube 2 has one or more cooling units 10 near its outlet which spray the tube with water. The water is collected in a drainage device 14 around the guide tube 2 which is perforated in this area. A plug may be provided in the end of the copper tube to prevent ingress of air or water. The billet is initially heated to above 250‹ C., and the extrusion ratio is greater than 200 : 1. In one example the initial temperature is about 350‹ C., the ratio about 500 : 1. The extrusion pressure 10-15 kbar and the cooling units are 30 metres from the die which at an extrusion speed of 15 m./sec. allows 2 seconds for the recrystallization. The cooled extruded tube is directed to a coiler 3.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE960571A SE365957B (en) | 1971-07-27 | 1971-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1389035A true GB1389035A (en) | 1975-04-03 |
Family
ID=20277079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3486372A Expired GB1389035A (en) | 1971-07-27 | 1972-07-26 | Method of and apparatus for manufacturing copper tubes by means of hydrostatic extrusion |
Country Status (8)
Country | Link |
---|---|
BR (1) | BR7204995D0 (en) |
CH (1) | CH537221A (en) |
DE (1) | DE2235143A1 (en) |
FR (1) | FR2147194A1 (en) |
GB (1) | GB1389035A (en) |
IT (1) | IT964788B (en) |
NL (1) | NL7210195A (en) |
SE (1) | SE365957B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4242895A (en) * | 1978-09-15 | 1981-01-06 | Wean United, Inc. | Method and apparatus for cooling and handling extruded workpieces |
-
1971
- 1971-07-27 SE SE960571A patent/SE365957B/xx unknown
-
1972
- 1972-07-18 DE DE19722235143 patent/DE2235143A1/en active Pending
- 1972-07-20 CH CH1099472A patent/CH537221A/en not_active IP Right Cessation
- 1972-07-24 NL NL7210195A patent/NL7210195A/xx unknown
- 1972-07-26 GB GB3486372A patent/GB1389035A/en not_active Expired
- 1972-07-26 IT IT6942172A patent/IT964788B/en active
- 1972-07-26 BR BR499572A patent/BR7204995D0/en unknown
- 1972-07-26 FR FR7226834A patent/FR2147194A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NL7210195A (en) | 1973-01-30 |
DE2235143A1 (en) | 1973-03-15 |
SE365957B (en) | 1974-04-08 |
IT964788B (en) | 1974-01-31 |
FR2147194A1 (en) | 1973-03-09 |
BR7204995D0 (en) | 1974-10-22 |
CH537221A (en) | 1973-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8501212D0 (en) | SET FOR MANUFACTURE OF PREMIUATED PIPES | |
GB990382A (en) | Method and apparatus for producing continuous thermoplastic tubes | |
GB1024954A (en) | Method for the manufacture of pipes from thermoplastic material | |
US2359453A (en) | Manufacture of solid-drawn iron and steel tubes | |
US3668916A (en) | Drawing of metal tubing | |
ATE3617T1 (en) | METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF METALLIC STRIPS. | |
GB1389035A (en) | Method of and apparatus for manufacturing copper tubes by means of hydrostatic extrusion | |
GB1430623A (en) | Process and apparatus for continuous hydrostatic extrusion | |
IE33555L (en) | Manufacture of tubular film. | |
GB631127A (en) | Improvements in or relating to electric cables | |
US3328994A (en) | Method and apparatus for extruding heat-conductive materials | |
ES383918A1 (en) | Method of fabricating seamless steel pipes | |
GB739052A (en) | A device for tempering copper or copper-alloy wires, strips or the like produced in extrusion presses | |
GB1531608A (en) | Stretching process | |
ES346878A1 (en) | Tube extrusion apparatus and method | |
FR2086713A5 (en) | Drawing thermoplastic profiles - expanded by vacuum and calibrated | |
GB1201485A (en) | Methods of and apparatus for extruding solid plastic materials | |
ATE53779T1 (en) | MANUFACTURE OF METALLIC EXTRUSION PRODUCTS. | |
GB1335818A (en) | Extrusion of metals | |
GB644690A (en) | Improvements in the sheathing of electric cables | |
GB1249926A (en) | Wire drawing | |
JPS5637123A (en) | Method and apparatus for production of stretched tubular film | |
GB1377118A (en) | Extrusion methods and apparatus | |
GB1349553A (en) | Production of seamless metal tubes | |
FR2292574A1 (en) | Rapidly cooling extruded tubing - by injecting liquid nitrogen into the tubing (BE280576) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |