GB1088588A - Sintered iron-base materials - Google Patents

Sintered iron-base materials

Info

Publication number
GB1088588A
GB1088588A GB19452/66A GB1945266A GB1088588A GB 1088588 A GB1088588 A GB 1088588A GB 19452/66 A GB19452/66 A GB 19452/66A GB 1945266 A GB1945266 A GB 1945266A GB 1088588 A GB1088588 A GB 1088588A
Authority
GB
United Kingdom
Prior art keywords
present
sintered
tempered
tons
molybdenum
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
GB19452/66A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1088588A publication Critical patent/GB1088588A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seat
    • F16K25/005—Particular materials for seats or closure elements
    • 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
    • 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%
    • C22C33/0285—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% with Cr, Co, or Ni having a minimum content higher than 5%
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials

Abstract

A powder-metallurgical composition particularly suitable for the production of sleeve valves and valve seats consists of iron containing graphite and .nickel.0.5 - 5% .lead.1 - 4% while molybdenum and cobalt may also be present, the former being present in the range 1.2 - 1.8%, and the content of cobalt being eight times that of molybdenum. Vanadium may also be present within the range 0.05 - 0.2%. After briquetting the compact is sintered and hot or cold pressed at a pressure greater than that used during briquetting, and may then be heated to a temperature above the Ac 3 point, cooled rapidly, and tempered at up to 650 DEG C. Alternatively the heat treatment may be carried out after sintering and prior to cold working. As exemplified, a particular powder composition was briquetted at 3.5 tons/sq. cm, and sintered at 1100 DEG C. in a neutral atmosphere for three hours; the compacts were then heated to 830 DEG C. for fifteen minutes, rapidly cooled, and tempered at 580 DEG C. for thirty minutes, after which they were cold compressed at 7 tons/sq.in.
GB19452/66A 1965-05-07 1966-05-03 Sintered iron-base materials Expired GB1088588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1013165 1965-05-07

Publications (1)

Publication Number Publication Date
GB1088588A true GB1088588A (en) 1967-10-25

Family

ID=11133918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19452/66A Expired GB1088588A (en) 1965-05-07 1966-05-03 Sintered iron-base materials

Country Status (4)

Country Link
US (1) US3471343A (en)
BE (1) BE680620A (en)
GB (1) GB1088588A (en)
SE (1) SE309676B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711341A (en) * 1970-05-04 1973-01-16 Ibm Method of making sintered metal ultrasonic bonding tips
BE782668A (en) * 1971-05-18 1972-08-16 Siemens Ag RAW MATERIAL FOR HIGH POWER VACUUM SWITCHES
JPS4832709A (en) * 1971-09-02 1973-05-02
JPS4832708A (en) * 1971-09-02 1973-05-02
JPS5130843B2 (en) * 1971-12-22 1976-09-03
US3837816A (en) * 1972-09-05 1974-09-24 Nippon Piston Ring Co Ltd Thermal and abrasion resistant sintered alloy
JPS5346768B2 (en) * 1973-01-11 1978-12-16
US4049429A (en) * 1973-03-29 1977-09-20 The International Nickel Company, Inc. Ferritic alloys of low flow stress for P/M forgings
JPS5638672B2 (en) * 1973-06-11 1981-09-08
DE2828513C2 (en) * 1978-06-29 1985-03-14 Bleistahl GmbH, 5802 Wetter Material for the powder metallurgical production of objects with high wear resistance
DE3227549A1 (en) * 1982-07-23 1984-01-26 Schunk & Ebe Gmbh, 6301 Heuchelheim Material for powder-metallurgical production of valve seat rings
DE3413593C1 (en) * 1984-04-11 1985-11-07 Bleistahl GmbH, 5802 Wetter Process for the production of valve seat rings
JPH0610321B2 (en) * 1985-06-17 1994-02-09 日本ピストンリング株式会社 Abrasion resistant sintered alloy
US5256184A (en) * 1991-04-15 1993-10-26 Trw Inc. Machinable and wear resistant valve seat insert alloy

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2315565A (en) * 1940-09-14 1943-04-06 Wilson H A Co Bimetallic element
US2759810A (en) * 1950-10-20 1956-08-21 Koehler Max Articles of sintered iron and method of making same
US2842471A (en) * 1950-12-22 1958-07-08 August H Schilling Powder metallurgy and piston rings obtained thereby
US2741827A (en) * 1950-12-22 1956-04-17 August H Schilling Process for the manufacture of piston rings by powder metallurgy and articles obtained thereby
NL193905A (en) * 1953-11-07 1900-01-01
US2882190A (en) * 1954-07-19 1959-04-14 Gen Motors Corp Method of forming a sintered powdered metal piston ring
US3093519A (en) * 1961-01-03 1963-06-11 Int Nickel Co Age-hardenable, martensitic iron-base alloys

Also Published As

Publication number Publication date
US3471343A (en) 1969-10-07
BE680620A (en) 1966-10-17
SE309676B (en) 1969-03-31

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