GB970259A - Dispersion strengthening of lead - Google Patents

Dispersion strengthening of lead

Info

Publication number
GB970259A
GB970259A GB19517/62A GB1951762A GB970259A GB 970259 A GB970259 A GB 970259A GB 19517/62 A GB19517/62 A GB 19517/62A GB 1951762 A GB1951762 A GB 1951762A GB 970259 A GB970259 A GB 970259A
Authority
GB
United Kingdom
Prior art keywords
lead
particles
powder
fragments
broken
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
GB19517/62A
Inventor
David Henry Roberts
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB19517/62A priority Critical patent/GB970259A/en
Priority to US269030A priority patent/US3315342A/en
Priority to DEA42826A priority patent/DE1294025B/en
Priority to SE5195/63A priority patent/SE307678B/xx
Publication of GB970259A publication Critical patent/GB970259A/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
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/12—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of lead or alloys based thereon
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C11/00—Alloys based on lead
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Powder Metallurgy (AREA)

Abstract

Dispersion strengthened lead is produced from partly oxidized lead powder by extruding it with an extrusion ratio, e.g. 20: 1, such that the oxide coatings on the powder particles are broken up into fragments which are distributed throughout the lead which has become welded together, without subsequent rolling. Prior to extrusion, the lead powder is preferably subjected to a mechanical process, e.g. vibration ball milling, whereby the oxide coatings on the particles are broken up into fragments which are forced into the particles, while further oxidation takes place on fresh surfaces, e.g. by continual changing of the air or oxygen in the ball mill. The process is also applied to lead base alloys, e.g. cable sheathing alloy 98.2% Pb-0.8% Sb. Specification 892,597 is referred to.
GB19517/62A 1962-05-21 1962-05-21 Dispersion strengthening of lead Expired GB970259A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB19517/62A GB970259A (en) 1962-05-21 1962-05-21 Dispersion strengthening of lead
US269030A US3315342A (en) 1962-05-21 1963-03-29 Dispersion strengthening of lead
DEA42826A DE1294025B (en) 1962-05-21 1963-04-05 Process for the production of dispersion strengthened lead
SE5195/63A SE307678B (en) 1962-05-21 1963-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19517/62A GB970259A (en) 1962-05-21 1962-05-21 Dispersion strengthening of lead

Publications (1)

Publication Number Publication Date
GB970259A true GB970259A (en) 1964-09-16

Family

ID=10130718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19517/62A Expired GB970259A (en) 1962-05-21 1962-05-21 Dispersion strengthening of lead

Country Status (4)

Country Link
US (1) US3315342A (en)
DE (1) DE1294025B (en)
GB (1) GB970259A (en)
SE (1) SE307678B (en)

Cited By (1)

* 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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114247797B (en) * 2021-12-22 2023-08-01 安徽宏飞钓具有限公司 Smooth surface process of lead body surface and application of smooth surface process to lead hook and lead weight

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH307704A (en) * 1952-04-10 1955-06-15 Aluminium Ind Ag Process for the production of aluminum flake powder.
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

Cited By (1)

* 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

Also Published As

Publication number Publication date
SE307678B (en) 1969-01-13
US3315342A (en) 1967-04-25
DE1294025B (en) 1969-04-30

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