PRODUCTION OF PISTON FOR INTERNAL COMBUSTION ENGINE

Title:

PRODUCTION OF PISTON FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JPH09122884

Kind Code:

A

Abstract:

To improve strength and to prevent a failure, etc., by decreasing the volumetric rate of the carbon short fibers on a surface part while assuring the wear resistance and coagulation resistance of a composite member.

This process for producing a piston comprises forming the inner peripheral wall of the top ring groove of a piston body of the composite member 11 formed by combining the carbon short fibers 13 and potassium titanate whiskers 14 with an aluminum alloy material and mixing the carbon short fibers 13 at a ratio of 30 to 60% (vol.%) with the entire part of the composite member 11. A perform body 15 consisting of the carbon shot fibers 13 and the potassium titanate whiskers 14 is previously molded and the molding is heated at about 400 to 550°C in the atm. to burn the carbon short fibers of the surface part Z.

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Inventors:

SASAKI MASATO
TOMONO YUTAKA
KOTAKE SEIICHI
FUJITA JUNICHI

Application Number:

JP28960295A

Publication Date:

May 13, 1997

Filing Date:

November 08, 1995

Export Citation:

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Assignee:

UNISIA JECS CORP
HITACHI SHIPBUILDING ENG CO
OSAKA GAS CO LTD

International Classes:

B22D19/08; B22D19/14; C22C47/00; C22C47/08; C22C47/12; F02F3/00; (IPC1-7): B22D19/08; B22D19/14; C22C1/09; F02F3/00

Attorney, Agent or Firm:

Fujiya Shiga (2 outside)

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