GB944949A - Improvements in or relating to the extrusion of metals - Google Patents

Improvements in or relating to the extrusion of metals

Info

Publication number
GB944949A
GB944949A GB4152761A GB4152761A GB944949A GB 944949 A GB944949 A GB 944949A GB 4152761 A GB4152761 A GB 4152761A GB 4152761 A GB4152761 A GB 4152761A GB 944949 A GB944949 A GB 944949A
Authority
GB
United Kingdom
Prior art keywords
die
tube
mandrel
container
graphite
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
Application number
GB4152761A
Inventor
Philip Bernard Eyre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB4152761A priority Critical patent/GB944949A/en
Publication of GB944949A publication Critical patent/GB944949A/en
Expired legal-status Critical Current

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
    • 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
    • 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
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/10—Making finned tubes
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/02—Removing or drawing-off work
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/02—Removing or drawing-off work
    • B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

944,949. Extruding; rolling. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 12, 1962 [Nov. 21, 1961], No. 41527/61. Headings B3M and B3P. Apparatus for forming a longitudinallyfinned metal tube comprises a container 1 for receiving a billet 45 to be extruded between an axially movable mandrel 8 and a die 4 into a plain tube, and a series of grooved rolls 15 for forming longitudinal fins on the tube. In the manufacture of a sheath of beryllium for a nuclear fuel element, a pre-heated hollow beryllium billet coated with silver to act as a lubricant, is loaded in the container against a graphite ring 43 resting on the die 4 which is supported from below by a cage 5 and wedge assembly 7 operated by an hydraulic ram 6. The latter is hinged at 33 so as to be detachable from a slot 38 in the wedge assembly. Container 1 is heated by electrothermal braid 44 insulated with glass tape. The die 4, mandrel 8, wedges 27, 28 and their guide plate 31 are coated with graphite by dipping in a suspension of colloidal graphite in water arid they are also polished before use. Mandrel 8 has an integral head 9 which is pressed downwards by an hydraulic ram 46 to extrude the tube and force it between the grooved rolls which are carried by the cage 5.
GB4152761A 1961-11-21 1961-11-21 Improvements in or relating to the extrusion of metals Expired GB944949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4152761A GB944949A (en) 1961-11-21 1961-11-21 Improvements in or relating to the extrusion of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4152761A GB944949A (en) 1961-11-21 1961-11-21 Improvements in or relating to the extrusion of metals

Publications (1)

Publication Number Publication Date
GB944949A true GB944949A (en) 1963-12-18

Family

ID=10420096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4152761A Expired GB944949A (en) 1961-11-21 1961-11-21 Improvements in or relating to the extrusion of metals

Country Status (1)

Country Link
GB (1) GB944949A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064729A (en) * 1977-03-02 1977-12-27 Alex Homery Metal forming device
DE3122158A1 (en) * 1981-06-04 1983-01-05 Magnitogorskij Gorno-MetallurgiČeskij institut imeni G.I. Nosova, Magnitogorsk Multi-roll universal stand

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064729A (en) * 1977-03-02 1977-12-27 Alex Homery Metal forming device
DE3122158A1 (en) * 1981-06-04 1983-01-05 Magnitogorskij Gorno-MetallurgiČeskij institut imeni G.I. Nosova, Magnitogorsk Multi-roll universal stand

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