JPS5517771A - Oil scraper piston ring made of sintered alloy and its making method - Google Patents

Oil scraper piston ring made of sintered alloy and its making method

Info

Publication number
JPS5517771A
JPS5517771A JP9098278A JP9098278A JPS5517771A JP S5517771 A JPS5517771 A JP S5517771A JP 9098278 A JP9098278 A JP 9098278A JP 9098278 A JP9098278 A JP 9098278A JP S5517771 A JPS5517771 A JP S5517771A
Authority
JP
Japan
Prior art keywords
piston ring
sintered alloy
oil scraper
equal
scraper 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.)
Pending
Application number
JP9098278A
Other languages
Japanese (ja)
Inventor
Takashi Honda
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.)
Riken Corp
Original Assignee
Riken Corp
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 Riken Corp filed Critical Riken Corp
Priority to JP9098278A priority Critical patent/JPS5517771A/en
Publication of JPS5517771A publication Critical patent/JPS5517771A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE: To provide an oil scraper ring for being free from the increase in oil consumption caused by choking of a window and for being capable of shortening a manufacturing process, by making a sintered alloy made oil scraper piston ring whose window length is equal or nearly equal in a point of an inner and outer circumference.
CONSTITUTION: A pressured powder object of a sintered alloy made oil scraper piston ring, whose window length is equal or nearly equal in a point of an inner and outer circumference surface, and the one of a piston ring, which is divided into a upper and lower parts, are formed. The two pressured powder objects, between which a wax is nipped, are adhered closely to each other, and the work is sintered to make the sintered alloy made oil scraper piston ring. The method allows the window 4 of piston ring to be equal or almost equal in a point of the inner and outer circumerence, and thus, an excellent abrasion-proof property of the sintered alloy can be displayed.
COPYRIGHT: (C)1980,JPO&Japio
JP9098278A 1978-07-27 1978-07-27 Oil scraper piston ring made of sintered alloy and its making method Pending JPS5517771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9098278A JPS5517771A (en) 1978-07-27 1978-07-27 Oil scraper piston ring made of sintered alloy and its making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9098278A JPS5517771A (en) 1978-07-27 1978-07-27 Oil scraper piston ring made of sintered alloy and its making method

Publications (1)

Publication Number Publication Date
JPS5517771A true JPS5517771A (en) 1980-02-07

Family

ID=14013713

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9098278A Pending JPS5517771A (en) 1978-07-27 1978-07-27 Oil scraper piston ring made of sintered alloy and its making method

Country Status (1)

Country Link
JP (1) JPS5517771A (en)

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