Composite piston pin and manufacturing method of the same
AssigneesHyundai Motor Company, SK Chemicals Co., Ltd.
InventorsSang Yoon PARK, June Ho YANG, Sung Chul CHA, Chi Hoon CHOI, Seung Hyun HONG, Young Dae JO, Jae Won LEE
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Abstract
Disclosed herein is a composite piston pin including a pipe-shaped outer layer made of reinforced fibers; an inner layer coupled to the outer layer along an inner surface of the outer layer, and made of reinforced fibers having lower elasticity than the outer layer; and a resin material including an epoxy resin composition and cyanate ester, and impregnated into the reinforced fibers of the outer layer and the inner layer.
Claims10
A composite piston pin comprising:
- a pipe-shaped outer layer made of reinforced fibers;
- an inner layer coupled to the outer layer along an inner surface of the outer layer, and made of reinforced fibers having lower elasticity than the outer layer;
- and
- a resin material comprising an epoxy resin composition and cyanate ester, and impregnated into the reinforced fibers of the outer layer and the inner layer.
A manufacturing method of a composite piston pin, the manufacturing method comprising:
- first rolling a first prepreg constituted by a resin material comprising an epoxy resin composition and cyanate ester, and reinforced fibers such that the first prepreg surrounds an outer surface of a cylindrical mold;
- second rolling a second prepreg constituted by a resin material comprising an epoxy resin composition and cyanate ester, and reinforced fibers having higher elasticity than the reinforced fibers of the first prepreg such that the second prepreg surrounds an outer surface of the first prepreg;
- and
- integrally forming the first prepreg and the second prepreg rolled around the mold, in an oven.
Dependencies are inferred from the claim text.