JPS5587809A - Valve rocker material - Google Patents

Valve rocker material

Info

Publication number
JPS5587809A
JPS5587809A JP16224578A JP16224578A JPS5587809A JP S5587809 A JPS5587809 A JP S5587809A JP 16224578 A JP16224578 A JP 16224578A JP 16224578 A JP16224578 A JP 16224578A JP S5587809 A JPS5587809 A JP S5587809A
Authority
JP
Japan
Prior art keywords
face
hardness
hard phase
valve
hole
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.)
Granted
Application number
JP16224578A
Other languages
Japanese (ja)
Other versions
JPS597779B2 (en
Inventor
Takeshi Hiraoka
Shigeru Urano
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
Priority to JP53162245A priority Critical patent/JPS597779B2/en
Publication of JPS5587809A publication Critical patent/JPS5587809A/en
Publication of JPS597779B2 publication Critical patent/JPS597779B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To provide a less amount of initial wear, by providing a hole factor of specific value and a soft sintered alloy of hardness in the hitting face of light alloy- made valve rocker material with a cam, push rod or valve end face, and constructing tri-ioron tetroxide on its surface.
CONSTITUTION: In the hitting face of the valve rocker material, made of light alloy like aluminums, with cam or push rod or valve end face, is provided a chip material 2 of iron system sintered alloy, including one kind or more than two kinds of element that constructs a hard phase, with the hard phase of hardness HV800W1800 being 5W70% as area ratio, and a size of hard layer of more than 70% of the hard phase total particles being 1W150μ, having an overall hardness of HV500W900, and having a hole factor of 0.5W10% further with a hole of less than 150μ. While immersing the base material portion of a rocker arm 1 in a coolant 3, surfaces of the chip material 2 is processed a steam treatment by a burner 4, to construct tri- iron tetroxide.
COPYRIGHT: (C)1980,JPO&Japio
JP53162245A 1978-12-26 1978-12-26 Valve engine parts Expired JPS597779B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53162245A JPS597779B2 (en) 1978-12-26 1978-12-26 Valve engine parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53162245A JPS597779B2 (en) 1978-12-26 1978-12-26 Valve engine parts

Publications (2)

Publication Number Publication Date
JPS5587809A true JPS5587809A (en) 1980-07-03
JPS597779B2 JPS597779B2 (en) 1984-02-21

Family

ID=15750743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53162245A Expired JPS597779B2 (en) 1978-12-26 1978-12-26 Valve engine parts

Country Status (1)

Country Link
JP (1) JPS597779B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200549A1 (en) * 1981-01-12 1982-10-07 Kennecott Corp., 06904 Stamford, Conn. Internal combustion engine with improved components
JPS58165508A (en) * 1982-03-26 1983-09-30 Yamaha Motor Co Ltd Valve rocker mechanism of internal-combustion engine
US4627392A (en) * 1984-04-18 1986-12-09 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Ceramic tip cast in valve rocker arm
EP1555397A1 (en) * 2004-01-13 2005-07-20 Koyo Seiko Co., Ltd. Rocker arm and method of manufacturing the same
EP2787183A4 (en) * 2011-11-29 2015-11-11 Tpr Co Ltd VALVE SEAT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51143518A (en) * 1975-06-06 1976-12-09 Mitsubishi Metal Corp Wear resistant iron-base sintered alloy for rocker arm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51143518A (en) * 1975-06-06 1976-12-09 Mitsubishi Metal Corp Wear resistant iron-base sintered alloy for rocker arm

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200549A1 (en) * 1981-01-12 1982-10-07 Kennecott Corp., 06904 Stamford, Conn. Internal combustion engine with improved components
JPS58165508A (en) * 1982-03-26 1983-09-30 Yamaha Motor Co Ltd Valve rocker mechanism of internal-combustion engine
US4627392A (en) * 1984-04-18 1986-12-09 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Ceramic tip cast in valve rocker arm
EP1555397A1 (en) * 2004-01-13 2005-07-20 Koyo Seiko Co., Ltd. Rocker arm and method of manufacturing the same
US7185619B2 (en) 2004-01-13 2007-03-06 Koyo Seiko Co., Ltd. Rocker arm and method of manufacturing the same
EP2787183A4 (en) * 2011-11-29 2015-11-11 Tpr Co Ltd VALVE SEAT
US9581056B2 (en) 2011-11-29 2017-02-28 Tpr Co., Ltd. Valve seat

Also Published As

Publication number Publication date
JPS597779B2 (en) 1984-02-21

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