GB1004273A - Process for the production of dispersion strengthened lead - Google Patents

Process for the production of dispersion strengthened lead

Info

Publication number
GB1004273A
GB1004273A GB15507/63A GB1550763A GB1004273A GB 1004273 A GB1004273 A GB 1004273A GB 15507/63 A GB15507/63 A GB 15507/63A GB 1550763 A GB1550763 A GB 1550763A GB 1004273 A GB1004273 A GB 1004273A
Authority
GB
United Kingdom
Prior art keywords
lead
particles
oxide
dispersion strengthened
lead particles
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
GB15507/63A
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.)
St Joseph Lead Co
Original Assignee
St Joseph Lead 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 St Joseph Lead Co filed Critical St Joseph Lead Co
Publication of GB1004273A publication Critical patent/GB1004273A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0042—Matrix based on low melting metals, Pb, Sn, In, Zn, Cd or alloys thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • 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
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

Dispersion strengthened lead is produced by plastically deforming, preferably extruding, oxide-coated lead particles, such as formed by mixing lead particles, preferably not greater than 150 microns in diameter, with water, e.g. from 0.25-2% by weight while exposing to a free oxygen containing gas, e.g. air not above 100 DEG C., to break up the lead oxide coatings and distribute the resultant oxide fragments throughout the lead matrix. The oxide coating of the lead particles may constitute 1.4-30.8% (calculated as Pb2O) of the particles. The oxide coated lead particles may be deformed also by die stamping or roll compacting, producing lead finished products such as tubes, pipes, strip or sheet, or an intermediate billet which can be worked. Prior processes of strengthening lead are disclosed wherein dispersoids such as oxides of Al, Pb, Mg or Ca, or Ni are added prior to compacting.ALSO:Oxide coated lead particles for producing dispersion strengthened lead by plastic deformation are formed by mixing lead particles, preferably not greater than 150 microns in diameter with water while exposing to a free oxygen containing gas, e.g. air, so that the oxide coating of the lead particles constitutes 1.4 to 30.8% (calculated as Pb2O) of the particles.
GB15507/63A 1962-04-26 1963-04-19 Process for the production of dispersion strengthened lead Expired GB1004273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA847599 1962-04-26

Publications (1)

Publication Number Publication Date
GB1004273A true GB1004273A (en) 1965-09-15

Family

ID=4141468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15507/63A Expired GB1004273A (en) 1962-04-26 1963-04-19 Process for the production of dispersion strengthened lead

Country Status (4)

Country Link
US (1) US3320664A (en)
DE (1) DE1458473A1 (en)
GB (1) GB1004273A (en)
LU (1) LU43617A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393069A (en) * 1964-11-10 1968-07-16 St Joseph Lead Co Manufacture of dispersion strengthened lead by screw extrusion of oxide-coated particles
GB1122823A (en) * 1965-05-19 1968-08-07 Ass Elect Ind Improvements relating to dispersion strengthened lead
US3499800A (en) * 1966-02-10 1970-03-10 St Joseph Lead Co Method of making lead particles for non-bubbling dispersion strengthened lead
US3545067A (en) * 1966-12-09 1970-12-08 Mallory & Co Inc P R Method of making preoxidized silver-cadmium oxide material having a fine silver backing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2113279A (en) * 1936-08-26 1938-04-05 Winchester Repeating Arms Co Process for manufacture of shot
US3066391A (en) * 1957-01-15 1962-12-04 Crucible Steel Co America Powder metallurgy processes and products
US3098293A (en) * 1959-12-01 1963-07-23 Ass Elect Ind Dispersion hardening of lead
US3189989A (en) * 1963-05-20 1965-06-22 Ass Elect Ind Dispersion hardening of lead

Also Published As

Publication number Publication date
US3320664A (en) 1967-05-23
LU43617A1 (en) 1963-06-25
DE1458473A1 (en) 1969-05-29

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