GB1116279A - Improvements in or relating to the manufacture of valves from austenitic steels - Google Patents

Improvements in or relating to the manufacture of valves from austenitic steels

Info

Publication number
GB1116279A
GB1116279A GB2690766A GB2690766A GB1116279A GB 1116279 A GB1116279 A GB 1116279A GB 2690766 A GB2690766 A GB 2690766A GB 2690766 A GB2690766 A GB 2690766A GB 1116279 A GB1116279 A GB 1116279A
Authority
GB
United Kingdom
Prior art keywords
manufacture
austenitic steels
valves
relating
treated
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
GB2690766A
Inventor
Frederick William Tetley
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.)
Swift Levick Magnets Ltd
Original Assignee
Swift Levick and Sons 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 Swift Levick and Sons Ltd filed Critical Swift Levick and Sons Ltd
Priority to GB2690766A priority Critical patent/GB1116279A/en
Publication of GB1116279A publication Critical patent/GB1116279A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Austenitic steels particularly suitable for the manufacture of I.C. poppet valves (see Division B3) have the following percentage compositions: - <TABS:1116279/C6-C7/1> The steel may be solution heat-treated at 1050-1275 DEG C, after which it is induction-heated at a rate greater than 50 DEG C/min from 600 DEG C onwards to a like forging temperature. A forged valve having a composition of steel 3 may be precipitation heat-treated at 675 DEG C for 6 hours. In known methods of valve production, the solution heat treatment followed if desired by precipitation treatment at 600-850 DEG C is carried out subsequent to the forging operation.
GB2690766A 1966-06-16 1966-06-16 Improvements in or relating to the manufacture of valves from austenitic steels Expired GB1116279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2690766A GB1116279A (en) 1966-06-16 1966-06-16 Improvements in or relating to the manufacture of valves from austenitic steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2690766A GB1116279A (en) 1966-06-16 1966-06-16 Improvements in or relating to the manufacture of valves from austenitic steels

Publications (1)

Publication Number Publication Date
GB1116279A true GB1116279A (en) 1968-06-06

Family

ID=10251096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2690766A Expired GB1116279A (en) 1966-06-16 1966-06-16 Improvements in or relating to the manufacture of valves from austenitic steels

Country Status (1)

Country Link
GB (1) GB1116279A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3636792A1 (en) * 2018-10-12 2020-04-15 Borgwarner Inc. Novel austenitic alloys for turbochargers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3636792A1 (en) * 2018-10-12 2020-04-15 Borgwarner Inc. Novel austenitic alloys for turbochargers
CN111041386A (en) * 2018-10-12 2020-04-21 博格华纳公司 Novel austenitic alloy for turbocharger
US11434556B2 (en) 2018-10-12 2022-09-06 Borgwarner Inc. Austenitic alloys for turbochargers

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