GB1008250A - Improvements in or relating to method of making copper tubing - Google Patents

Improvements in or relating to method of making copper tubing

Info

Publication number
GB1008250A
GB1008250A GB14437/62A GB1443762A GB1008250A GB 1008250 A GB1008250 A GB 1008250A GB 14437/62 A GB14437/62 A GB 14437/62A GB 1443762 A GB1443762 A GB 1443762A GB 1008250 A GB1008250 A GB 1008250A
Authority
GB
United Kingdom
Prior art keywords
compact
sintered
extruded
lubricant
bore
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
GB14437/62A
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.)
EW Bliss Co Inc
Original Assignee
EW Bliss Co Inc
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 EW Bliss Co Inc filed Critical EW Bliss Co Inc
Publication of GB1008250A publication Critical patent/GB1008250A/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
    • 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
    • B21C23/085—Making 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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

In a process of producing a sintered extruded metallic shape a metal powder such as Cu or Ni, with an average particle size of 10-12.3 microns and a lubricant is compacted to a green density of 80-90% of theoretical, sintered in a reducing atmosphere and finally extruded to the required shape. The lubricant may be stearic acid or the stearates of Ba, Ca, Zn or Li and the green compact is presintered at 1200 DEG F. and then sintered <PICT:1008250/C6-C7/1> at 1920-1950 DEG F. in cracked ammonia. The sintered compact is coated with a lubricant such as stearates in benzene and then extruded, preferably hot at 800-1000 DEG F. in the extrusion apparatus shown in Fig. 4. The sintered compact 48 is fed into position opposite the bore 46 of liner 44 with the bore 50 of the compact axially aligned with the mandrel 14 of the extrusion punch 10. The mandrel enters the bore and the punch pushes the compact into the container 42 of extrusion die 34. Further advance of the punch extrudes the compact into a tube 60. In another embodiment the compacts are extruded in tandem through the die.
GB14437/62A 1961-04-18 1962-04-13 Improvements in or relating to method of making copper tubing Expired GB1008250A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US103868A US3189988A (en) 1961-04-18 1961-04-18 Method of making copper tubing

Publications (1)

Publication Number Publication Date
GB1008250A true GB1008250A (en) 1965-10-27

Family

ID=22297461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14437/62A Expired GB1008250A (en) 1961-04-18 1962-04-13 Improvements in or relating to method of making copper tubing

Country Status (5)

Country Link
US (1) US3189988A (en)
BE (1) BE616442A (en)
CH (1) CH399143A (en)
DE (1) DE1458260A1 (en)
GB (1) GB1008250A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334408A (en) * 1964-10-08 1967-08-08 Metal Innovations Inc Production of powder, strip and other metal products from refined molten metal
US3281893A (en) * 1963-11-04 1966-11-01 Maurice D Ayers Continuous production of strip and other metal products from molten metal
US3345452A (en) * 1964-02-27 1967-10-03 Thomas & Betts Corp Sintered powdered metal connectors
US3390985A (en) * 1966-08-10 1968-07-02 Us Interior Consolidation and forming by high-energy-rate extrusion of powder material
US3407062A (en) * 1967-01-05 1968-10-22 Dow Chemical Co Method of impact extruding
US3478870A (en) * 1968-08-08 1969-11-18 Franklin Mint Inc Method and article for packaging objects
US3805574A (en) * 1969-04-21 1974-04-23 O Wessel Equipment for extrusion
US3730227A (en) * 1969-05-12 1973-05-01 Brunswick Corp Orifice structure
AT316966B (en) * 1969-11-27 1974-08-12 Mannesmann Ag Process for producing strips or bands from metallic particles, in particular from steel
US3757410A (en) * 1971-01-27 1973-09-11 Treadwell Corp Method and apparatus for extruding metal powder to produce a continuous rod
CN103157692B (en) * 2011-12-09 2015-06-10 北京有色金属研究总院 Preparation method for zinc-based alloy specially-shaped tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2001134A (en) * 1933-02-06 1935-05-14 Hardy Metallurg Company Metal powder
US2290734A (en) * 1940-02-14 1942-07-21 Minerals And Metals Corp Manufacture of metal products
US2679932A (en) * 1950-04-10 1954-06-01 Dow Chemical Co Manufacture of magnesium alloy extrusions
US2879887A (en) * 1953-05-11 1959-03-31 Ici Ltd Method of extruding successive but distinct articles
US2967613A (en) * 1955-04-28 1961-01-10 134 Woodworth Corp Metal forming apparatus
US2954869A (en) * 1957-08-14 1960-10-04 Lake Erie Machinery Corp Extrusion press
US3075244A (en) * 1959-07-23 1963-01-29 Westinghouse Electric Corp Manufacture of articles from powdered materials

Also Published As

Publication number Publication date
BE616442A (en) 1962-10-15
CH399143A (en) 1966-03-31
DE1458260A1 (en) 1969-03-13
US3189988A (en) 1965-06-22

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