JPS6429605A - Locker arm chip - Google Patents

Locker arm chip

Info

Publication number
JPS6429605A
JPS6429605A JP18367387A JP18367387A JPS6429605A JP S6429605 A JPS6429605 A JP S6429605A JP 18367387 A JP18367387 A JP 18367387A JP 18367387 A JP18367387 A JP 18367387A JP S6429605 A JPS6429605 A JP S6429605A
Authority
JP
Japan
Prior art keywords
carbide
tuft
arm chip
compound layer
locker arm
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.)
Pending
Application number
JP18367387A
Other languages
Japanese (ja)
Inventor
Makoto Kano
Ichiro Tanimoto
Yoshihiro Marai
Akira Fujiki
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP18367387A priority Critical patent/JPS6429605A/en
Publication of JPS6429605A publication Critical patent/JPS6429605A/en
Pending legal-status Critical Current

Links

Landscapes

  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE:To obtain a locker arm chip having the superior erosion resistance and abrasion resistance from a material having a specific alloy component and is made of a high chromium cast iron having a large area ratio of the needle-shaped carbide among the sedimentation carbide and forming a strong tuft compound layer and a nitrogen diffusion layer on the surface. CONSTITUTION:A locker arm chip used in a tappet valve system of an internal combustion engine for automobile is made of the alloy component containing Cr:10-20%, C:2.0-3.5%, P:0.05-0.3%, Ni:0.3-1.0%, Si:1.2-2.0%, Mn:0.5-1.0%. A cast particle is made of the high chromium casted iron which contains the needle-shaped carbide among the sedimentation carbide in 90% of area ratio and the radial lamella carbide as the rest, in the state in which black skin is removed after casting. A brittle hard tuft compound layer formed on the surface of the cam sliding surface after tuftride processing is removed, and a strong tuft compound layer and a nitrogen diffusion layer having a thickness of 10m or less are allowed to exist on the surface.
JP18367387A 1987-07-24 1987-07-24 Locker arm chip Pending JPS6429605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18367387A JPS6429605A (en) 1987-07-24 1987-07-24 Locker arm chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18367387A JPS6429605A (en) 1987-07-24 1987-07-24 Locker arm chip

Publications (1)

Publication Number Publication Date
JPS6429605A true JPS6429605A (en) 1989-01-31

Family

ID=16139925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18367387A Pending JPS6429605A (en) 1987-07-24 1987-07-24 Locker arm chip

Country Status (1)

Country Link
JP (1) JPS6429605A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195473A (en) * 1989-09-08 1993-03-23 Nissan Motor Company, Ltd. Rocker arm and method of casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195473A (en) * 1989-09-08 1993-03-23 Nissan Motor Company, Ltd. Rocker arm and method of casting

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