GB811102A - Improvements in or relating to machine parts - Google Patents

Improvements in or relating to machine parts

Info

Publication number
GB811102A
GB811102A GB2951358A GB2951358A GB811102A GB 811102 A GB811102 A GB 811102A GB 2951358 A GB2951358 A GB 2951358A GB 2951358 A GB2951358 A GB 2951358A GB 811102 A GB811102 A GB 811102A
Authority
GB
United Kingdom
Prior art keywords
gear
powder
toothed gear
mixture
comptroller
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
GB2951358A
Inventor
Bernard Roy Atkins
Peter Stuart Maer
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.)
NOBRAC CARBON Ltd
Original Assignee
NOBRAC CARBON 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 NOBRAC CARBON Ltd filed Critical NOBRAC CARBON Ltd
Priority to GB2951358A priority Critical patent/GB811102A/en
Publication of GB811102A publication Critical patent/GB811102A/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
    • C22C32/0094—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 organic materials as the main non-metallic constituent, e.g. resin

Landscapes

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

Abstract

A machine part such as a bearing, sealing ring or toothed gear is made by forming a mixture of metallic powder and powders of polytetrafluoroethylene and carbon which is pressed into shape at a temperature of 400 DEG C. Natural graphite and powdered electrolytic copper and P.T.F.E. powder are used to form a toothed gear for complementary use with a bronze gear in a gear pump. Reference has been directed by the Comptroller to Specification 745,828.ALSO:A machine part such as a bearing, sealing ring or toothed gear is made by forming a mixture of metallic powder and powders of polytetrafluoroethylene and carbon which is pressed into shape at a temperature of 400 DEG C. and a pressure of 10 tons p.s.i. Natural graphite and powdered electrolytic copper and P.T.F.E. powder are used to form a toothed gear for complementary use with a bronze gear in a gear pump. Silver and tin may also be present, and the mixture preferably contains 50 per cent or more (by volume) of metal. Reference has been directed by the Comptroller to Specification 745,828 [Group IV(a)].
GB2951358A 1954-06-18 1954-06-18 Improvements in or relating to machine parts Expired GB811102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2951358A GB811102A (en) 1954-06-18 1954-06-18 Improvements in or relating to machine parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2951358A GB811102A (en) 1954-06-18 1954-06-18 Improvements in or relating to machine parts

Publications (1)

Publication Number Publication Date
GB811102A true GB811102A (en) 1959-04-02

Family

ID=10292719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2951358A Expired GB811102A (en) 1954-06-18 1954-06-18 Improvements in or relating to machine parts

Country Status (1)

Country Link
GB (1) GB811102A (en)

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