GB851948A - Method of hot working a metal billet - Google Patents

Method of hot working a metal billet

Info

Publication number
GB851948A
GB851948A GB34269/58A GB3426958A GB851948A GB 851948 A GB851948 A GB 851948A GB 34269/58 A GB34269/58 A GB 34269/58A GB 3426958 A GB3426958 A GB 3426958A GB 851948 A GB851948 A GB 851948A
Authority
GB
United Kingdom
Prior art keywords
billet
jacket
heated
zirconium
steel
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
GB34269/58A
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of GB851948A publication Critical patent/GB851948A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C21/00—Apparatus or processes specially adapted to the manufacture of reactors or parts thereof
    • G21C21/02—Manufacture of fuel elements or breeder elements contained in non-active casings
    • G21C21/10—Manufacture of fuel elements or breeder elements contained in non-active casings by extrusion, drawing, or stretching by rolling, e.g. "picture frame" technique
    • 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
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • 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
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
    • 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
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • 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
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B21C33/002—Encapsulated billet
    • 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
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B21C33/004—Composite billet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Extrusion Of Metal (AREA)
  • Forging (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

851,948. Making nuclear fuel elements; extruding; working at specified temperatures. BABCOCK & WILCOX CO. Oct. 27, 1958 [Oct. 29, 1957], No. 34269/58. Classes 83 (2) and 83 (4). In the hot-working of a metal billet 10 which at the working temperature is readily oxidizable and easily bonds with contacting metal, a carbon-steel jacket 11-13, Fig. 2, is heated to a temperature sufficient to oxidize its internal surface, the billet is hermetically encased within the jacket, the jacketed billet 16 is hotworked and the jacket is finally removed. In the manufacture of nuclear fuel elements, the billet 10 is made of an alloy of uranium with 10% molybdenum by vacuum-melting in a zirconium crucible and using a graphite mould coated with zirconium. The resulting ingot is heated to 1750‹ F., sheathed in oxidized steel or copper and hot-rolled to reduce its diameter; the sheathed ingot may be heated in a salt bath before hot-rolling. The resulting billet is then machined to its required diameter. The.jacket comprising a tube 11 and nose 12 welded together by helium-shielded arc welding, is heated in air to 1600‹ F. for twenty minutes. The billet 10 with machined end caps 15 and a sleeve 14 of zirconium, after degreasing with acetone, are loaded into the jacket, whose other end is then closed by a plug 13 welded thereto by helium-shielded arc welding in a dry box with a helium atmosphere. The jacketed billet 16, Fig. 3, is placed with interposed graphite discs 33 upon the ram 31 of an upstroke extrusion press having a container 23 with a tool-steel liner 28 supporting an extrusion die 29. The billet is heated to 1800‹ F. for four minutes by a high-frequency induction coil 34 and after lubricating the ram 31, liner 28 and die 29, the ram is moved rapidly upwards to impact extrude the billet wholly through the die and into a support-tube 25. The discs 33 enable complete extrusion to take place without producing a discard. The carbon-steel jacket is finally removed mechanically or by acid pickling, the ends of the extruded bar are cut-off, the bar is then swaged to a required diameter and cut into fuel-element lengths which are each end-capped with zirconium. Specification 851,949 is referred to.
GB34269/58A 1957-10-29 1958-10-27 Method of hot working a metal billet Expired GB851948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US693147A US3160951A (en) 1957-10-29 1957-10-29 Method of making fuel pins by extrusion

Publications (1)

Publication Number Publication Date
GB851948A true GB851948A (en) 1960-10-19

Family

ID=24783510

Family Applications (2)

Application Number Title Priority Date Filing Date
GB34269/58A Expired GB851948A (en) 1957-10-29 1958-10-27 Method of hot working a metal billet
GB41077/59A Expired GB851949A (en) 1957-10-29 1958-10-27 Improvements in apparatus for extruding a metal billet

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB41077/59A Expired GB851949A (en) 1957-10-29 1958-10-27 Improvements in apparatus for extruding a metal billet

Country Status (4)

Country Link
US (1) US3160951A (en)
CH (1) CH364234A (en)
FR (1) FR1213126A (en)
GB (2) GB851948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251569A (en) * 1990-11-06 1992-07-15 Alform Alloys Ltd Continuous extrusion of pre-heated billets
CN102248261A (en) * 2011-04-02 2011-11-23 成都东骏激光股份有限公司 Welding method of large-size thin-wall shaped crucible

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349593A (en) * 1962-05-11 1967-10-31 Smith Corp A O Hot metal extrusion method
US3406443A (en) * 1963-08-28 1968-10-22 Reynolds Metals Co Method of providing an enlarged end on a member
GB1096303A (en) * 1964-05-25 1967-12-29 Atomic Energy Authority Uk Improvements in or relating to the extrusion of composite bodies
US3331748A (en) * 1965-08-09 1967-07-18 Ca Atomic Energy Ltd Nuclear fuel elements
US3346673A (en) * 1965-11-19 1967-10-10 George A Last Formation of submicorn uranium carbide particles in metallic uranium
US3985514A (en) * 1966-07-20 1976-10-12 Atlantic Richfield Company Hot rolled composite billet for nuclear control rods
US3827264A (en) * 1966-07-20 1974-08-06 Arco Nuclear Co Method of producing sheets and article to practice such method
GB1186419A (en) * 1967-09-14 1970-04-02 British Insulated Callenders Improvements in or relating to the manufacture of Copper Clad Aluminium Rod
FR1584831A (en) * 1967-09-29 1970-01-02
SE338294B (en) * 1968-01-03 1971-09-06 Cnen
US3602978A (en) * 1969-04-14 1971-09-07 Us Navy Method of forming bimetallic transition joints
US3882595A (en) * 1973-04-20 1975-05-13 Youngstown Sheet And Tube Co Method of producing seamless tubing
SE393757B (en) * 1975-09-24 1977-05-23 Asea Ab HYDROSTATIC EXTENSION PROCEDURE
US4330920A (en) * 1980-06-24 1982-05-25 The United States Of America As Represented By The United States Department Of Energy Method for manufacturing magnetohydrodynamic electrodes
US5054184A (en) * 1987-05-29 1991-10-08 Valinox Process and apparatus for hot shaping of metals or metal alloys
US6904657B2 (en) * 2002-04-29 2005-06-14 Polymet Corporation Brittle wire extrusion method and apparatus
RU2524156C1 (en) * 2013-02-22 2014-07-27 Открытое акционерное общество "Новосибирский завод химконцентратов" (ОАО "НЗХК") Production of tubular fuel elements
RU2525030C1 (en) * 2013-05-30 2014-08-10 Открытое акционерное общество "Новосибирский завод химконцентратов" (ОАО "НЗХК") Production of tubular fuel elements, preferably, of hexagon shape

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US567410A (en) * 1896-09-08 Apparatus for manufacturing hollow metal articles
US2075622A (en) * 1932-02-15 1937-03-30 Schloemann Ag Extrusion press with electrically heated container
US2358892A (en) * 1942-12-09 1944-09-26 Western Cartridge Co Method for producing tin-coated copper tubes
US2870907A (en) * 1944-07-22 1959-01-27 Edward C Creutz Forming tubes and rods of uranium metal by extrusion
US2653494A (en) * 1946-12-24 1953-09-29 Edward C Creutz Method of forging metals
US2820751A (en) * 1952-12-01 1958-01-21 Henry A Saller Process for producing jacketed bodies
US2806596A (en) * 1953-05-07 1957-09-17 Harry W Dodds Metal extrusion process
US2893555A (en) * 1955-04-20 1959-07-07 Comptoir Ind Etirage Lubrication in the hot extrusion of metals
US2875311A (en) * 1956-02-14 1959-02-24 Robert J Harkenrider Induction heating in injection and extrusion processes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251569A (en) * 1990-11-06 1992-07-15 Alform Alloys Ltd Continuous extrusion of pre-heated billets
CN102248261A (en) * 2011-04-02 2011-11-23 成都东骏激光股份有限公司 Welding method of large-size thin-wall shaped crucible

Also Published As

Publication number Publication date
FR1213126A (en) 1960-03-29
US3160951A (en) 1964-12-15
CH364234A (en) 1962-09-15
GB851949A (en) 1960-10-19

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