Die structure and manufacturing process of bimetallic cylinder liner

Abstract

The invention belongs to the technical field of engine dies, and particular discloses a die structure of a bimetal cylinder liner and a processing technology thereof. The die structure of the bimetal cylinder liner comprises a die body, an upper pressing die, an inner core and a lower ejection die, wherein the die body, the upper pressing die and the lower ejection die are respectively of a hollow structure; the upper pressing die is arranged above the die body; the inner core and the lower ejection die are arranged in the die body; the inner core is positioned above the lower ejection die; a die cavity is formed among the die body, the inner core and the lower ejection die; the inner diameter of the lower ejection die and the upper pressing die are corresponding to the outer diameter of the inner core; the outer diameter of the lower ejection die and the upper pressing die are corresponding to the die cavity; the lower ejection die and the upper pressing die can perform up and down movements along the die cavity; an inner induction coil is arranged in the inner core; an outer induction coil is arranged outside the die body. The die structure of the bimetal cylinder liner and the processing technology thereof, provided by the invention, have the advantages that thermal ablation resistance of the engine cylinder liner is good, the heat insulation effect is good, the wear resistance is high, and the service life is long.

Description

technical field [0001] The invention relates to a production mold of a cylinder liner for an engine and a production process thereof, in particular to a mold structure of a bimetallic cylinder liner and a production process thereof. Background technique [0002] At present, the cylinder liners of gasoline and diesel engines are all made of alloy steel or ductile iron, which is heavy, especially for high-power engines, with poor thermal ablation resistance, poor heat insulation effect, large thermal deformation, poor wear resistance, and short service life. Contents of the invention [0003] In order to solve the above problems, the present invention provides a mold structure and a manufacturing process of a bimetallic cylinder liner with good thermal ablation resistance, good heat insulation effect, high wear resistance and long service life of the engine cylinder liner. [0004] A mold structure for a bimetallic cylinder liner of the present invention comprises a mold bod...

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Problems solved by technology

[0002] At present, the cylinder liners of gasoline and diesel engines are made of alloy steel or ductile iron, which is heavy, especially for high-power engines, with poor thermal ablation resistance, poor heat insulation effect, large thermal deformation, poor wear resistance, and short service life.

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