GB917585A - Improvements in or relating to piston rings - Google Patents

Improvements in or relating to piston rings

Info

Publication number
GB917585A
GB917585A GB3887859A GB3887859A GB917585A GB 917585 A GB917585 A GB 917585A GB 3887859 A GB3887859 A GB 3887859A GB 3887859 A GB3887859 A GB 3887859A GB 917585 A GB917585 A GB 917585A
Authority
GB
United Kingdom
Prior art keywords
rings
cast
fine
trace
piston
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
GB3887859A
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.)
Fundiciones Industriales SA
Original Assignee
Fundiciones Industriales SA
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 Fundiciones Industriales SA filed Critical Fundiciones Industriales SA
Publication of GB917585A publication Critical patent/GB917585A/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
    • C22C37/00—Cast-iron alloys
    • C22C37/10—Cast-iron alloys containing aluminium or silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

An iron alloy, for casting piston-rings or cylinders from which piston-rings may be cut, has the following composition:- .Mn.0.5% .C.3.3% .Si.trace to 2.4% .P.trace to 0.3% .Cr.0.5 to 0.7% .Mo.0.5 to 0.75% .with Fe.balance except for ..impurities such as 0.05% S For a cylinder cast, which is subsequently divided into rings, the structure of the cast is of fine peartite with dissemination of carbides and fine graphite; for individually cast rings, the structure additionally contains troostite. The rings may be heat-treated at 900 DEG C. for 2 hours and cooled in oil to give a fine martensite structure. Further heating at 300 DEG C. is preferred to produce acicular structure prior to machining using a mandrel (see Group XXII).
GB3887859A 1959-02-09 1959-11-17 Improvements in or relating to piston rings Expired GB917585A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES24711459 1959-02-09
ES24712159 1959-02-09

Publications (1)

Publication Number Publication Date
GB917585A true GB917585A (en) 1963-02-06

Family

ID=26155449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3887859A Expired GB917585A (en) 1959-02-09 1959-11-17 Improvements in or relating to piston rings

Country Status (1)

Country Link
GB (1) GB917585A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161321A (en) * 1978-01-25 1979-07-17 Sealed Power Corporation Piston ring and method of manufacture
WO2012022450A1 (en) * 2010-08-16 2012-02-23 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se, Tyskland Grey cast iron part or component having a basic microstructure of troostites for machines and process for the production thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161321A (en) * 1978-01-25 1979-07-17 Sealed Power Corporation Piston ring and method of manufacture
WO2012022450A1 (en) * 2010-08-16 2012-02-23 Man Diesel & Turbo Filial Af Man Diesel & Turbo Se, Tyskland Grey cast iron part or component having a basic microstructure of troostites for machines and process for the production thereof

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