A high-strength casting core manufacturing process

Abstract

The invention relates to a high-strength casting core manufacturing process, which uses a core manufacturing device, the core manufacturing device includes a base, a fixing unit, a molding unit and a core frame, and the upper end of the base is provided with a fixing unit , the upper end of the fixed unit is provided with a molding unit, and a core frame is placed in the fixed unit; the present invention prevents the mechanical device from being overpowered by the method of clamping the lower section of the core bone and fixing and supporting the middle section, and at the same time through manual adjustment. The steel wire mesh is crushed, so that the shape of the core obtained does not meet the requirements; the present invention tamps the core by shaking the material while cutting to prevent its inner wall from collapsing, thereby causing external deformation, and through the outer wall of the core bone Apply mud on the top to make the outer wall of the core bone smooth and prevent the casting from sticking to the core bone during casting.

Description

technical field [0001] The invention relates to the technical field of casting operations, in particular to a high-strength casting core manufacturing process. Background technique [0002] Casting is a kind of metal thermal processing technology mastered by human beings earlier, with a history of about 6,000 years. China has entered the heyday of bronze castings between 1700 BC and 1000 BC, and the craftsmanship has reached a very high level. Casting is a method in which liquid metal is poured into a casting cavity adapted to the shape of the part, and after it is cooled and solidified, the part or blank is obtained. [0003] The core is commonly known as "mud core" and "core". It is used to form the internal structure of the casting during casting. It is often made of core sand made of raw sand and binder (water glass, resin, etc.), which is made by hand or machine (such as core blowing machine, core shooting machine, etc.) in the core box. . It is installed in the mol...

AI Technical Summary

Problems solved by technology

[0004] There are often some problems in the core making process: 1. The outer layer of the core bone is generally a steel wire mesh structure. The clamping of the steel wire mesh must ensure that the force is not too large, so that the core bone is squeezed, so that the obtained core shape It does not meet the requirements; 2. When the sand is injected into the core bone, the sand will not be automatically compacted, so that during the casting process, the inner cavity will cause retraction, resulting in uneven surface of the casting, making it difficult for the core to be embedded. take out

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