Jacket core structure and preparation process thereof

Abstract

The invention relates to a jacket core structure, which comprises an upper half jacket core and a lower half jacket core. An asbestos pad is fixedly sandwiched between joint surfaces of the upper jacket core and the lower jacket core. Preferably, the asbestos pad is formed by punching asbestos cloth and is matched with the joint surfaces of the upper jacket core and the lower jacket core. The invention also provides a preparation process for the jacket core structure. The jacket core structure has the advantage of simple structure and can effectively solve the problem of an interlayer of a cylinder cover jacket.

Description

technical field [0001] The invention relates to a water jacket core structure, in particular to a water jacket core structure capable of effectively solving the problem of a cylinder head water jacket interlayer, and a preparation process of the water jacket core structure. Background technique [0002] At present, in the casting production of complex cylinder heads, a layer of about 1mm is often formed on the joint surface between the upper and lower water jacket cores. Due to the structure of the product, the edge of the joint surface between the upper and lower water jacket cores cannot be cleaned. In order to solve the problem of the edge of the joint surface between the upper and lower water jacket cores, the traditional water jacket core structure used to solve the problem of the edge is usually used in the upper and lower water jacket cores. A layer of paint is placed on the joint surface of the water jacket sand core. Although this method is simple to operate and eas...

AI Technical Summary

Problems solved by technology

Due to the structure of the product, the edge of the joint surface between the upper and lower water jacket cores cannot be cleaned. In order to solve the problem of the edge of the joint surface between the upper and lower water jacket cores, the traditional water jacket core structure used to solve the problem of the edge is usually used in the upper and lower water jacket cores. A layer of paint is placed on the joint surface of the water jacket sand core. Although this method is simple to operate and easy to construct, there is a high requirement for the gap between the joint surfaces between the sand cores, generally within 0.5mm

However, in the actual casting production, the gap between the joint surfaces between sand cores is often more than 0.5 mm due to sand core deformation / core dislocation and other reasons, and the structure of coating on the joint surface of sand cores cannot completely solve the problem The problem of cloaking at the joint surface

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