Piston with increasing wear resistance of Piston ring and and method for manufacturing this same

摘要

The present invention relates to a piston for increasing wear resistance of a piston ring and a method for manufacturing the same, and is composed of two divisions of a crown part and a piston part, and increases the contact area of the piston ring to reduce twist, thereby solving uneven wear and assembling the crown part and the skirt part It aims to increase the strength as well. The abrasion resistance increasing piston of the piston ring according to the present invention includes a skirt portion 10 connected to the connecting rod by a piston pin; A crown portion 20 coupled to an upper portion of the skirt portion; A tubular hub that is interposed between the skirt portion and the crown portion and is detachably coupled and includes a hub-shaped piston ring 30, wherein the hub-shaped piston ring is movably supported on one or more of the skirt portion and the crown portion. (31) and at least one ring portion 32 formed so that an end portion protrudes from an outer peripheral surface of the skirt portion and the crown portion at the peripheral portion of the hub.