GB940251A - Friction discs - Google Patents

Friction discs

Info

Publication number
GB940251A
GB940251A GB1688461A GB1688461A GB940251A GB 940251 A GB940251 A GB 940251A GB 1688461 A GB1688461 A GB 1688461A GB 1688461 A GB1688461 A GB 1688461A GB 940251 A GB940251 A GB 940251A
Authority
GB
United Kingdom
Prior art keywords
copper
carbon
iron
friction discs
discs
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
GB1688461A
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.)
Vereinigte Deutsche Metallwerke AG
Ver Deutsche Metallwerke AG
Original Assignee
Vereinigte Deutsche Metallwerke AG
Ver Deutsche Metallwerke AG
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 Vereinigte Deutsche Metallwerke AG, Ver Deutsche Metallwerke AG filed Critical Vereinigte Deutsche Metallwerke AG
Publication of GB940251A publication Critical patent/GB940251A/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
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/027—Compositions based on metals or inorganic oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

Friction discs for brakes and clutches are made from a pressed and sintered alloy containing in percentage by weight Fe 70-90 Cu 15-25 C 2- 5, the iron and carbon forming a pearlitic structure. Free carbon in the form of graphite is also present, and the discs may be porous, the pores representing up to 30% of the volume. In an example, graphite powder was first given a thin coating of copper by mixing with copper hydroxide and heating in a reducing atmosphere. A powder mixture of 78% iron, 18.2% copper and 3.8% carbon was hot pressed at 1100 DEG C., allowed to cool, and then again hot pressed.
GB1688461A 1960-05-27 1961-05-09 Friction discs Expired GB940251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV18710A DE1183697B (en) 1960-05-27 1960-05-27 Friction and sliding lamella, which consist of a uniform sintered alloy

Publications (1)

Publication Number Publication Date
GB940251A true GB940251A (en) 1963-10-30

Family

ID=7577308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1688461A Expired GB940251A (en) 1960-05-27 1961-05-09 Friction discs

Country Status (2)

Country Link
DE (1) DE1183697B (en)
GB (1) GB940251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775062C3 (en) * 1967-07-07 1975-09-04 Albright & Wilson Ltd., Oldbury, Birmingham, Warwickshire Use of phosphorus-containing cast iron for low-spark friction brake parts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153850B (en) * 1984-02-07 1987-08-12 Nippon Piston Ring Co Ltd Method of manufacturing a camshaft

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919473C (en) * 1951-06-09 1954-10-25 Goetzewerke Clutch material and process for its manufacture
GB755180A (en) * 1953-09-16 1956-08-15 Husqvarna Vapenfabriks Ab Improvements in or relating to the manufacture of iron-copper alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775062C3 (en) * 1967-07-07 1975-09-04 Albright & Wilson Ltd., Oldbury, Birmingham, Warwickshire Use of phosphorus-containing cast iron for low-spark friction brake parts

Also Published As

Publication number Publication date
DE1183697B (en) 1964-12-17

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