A kind of manual core making core head forming method

Abstract

The invention provides a core head forming method of manual core making. The core head forming method of manual core making comprises the following steps: firstly, a core head forming metal rod is placed in a core box core head hole, one end surface of the core head forming metal rod is parallel and level to the bottom end surface of the core box core head hole, the other end of the core head forming metal rod enters a cavity of a core box, and then the core box is filled with core sands to make a core; and after the core is made, the core sands with the core head forming metal rod are baked, and the core head forming metal rod is cured in the core sands, wherein during pouring, the core head forming metal rod has the action of positioning and supporting the core sands. The core head forming method of manual core making is suitable for manual core making; when a core head is too small and long without liability in forming, the problem that the core head is not liable to form as being too small (with the diameter smaller than 10mm) and having the length-diameter ratio being larger than 5 during manual core making is solved; and according to the core head forming method, the core is convenient to make, the core sands can be positioned and supported, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the mechanical casting industry, and in particular relates to a method for forming a manual core head. Background technique [0002] In the trial production stage of product casting, there are many hand-made sand core heads that form the inner cavity of the casting with small (diameter less than 10mm) and an aspect ratio greater than 5. It is difficult to shape the sand core head during core making, which affects the sand core head. The positioning and supporting functions of the sand core have become a major problem in the formation of the core head. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a manual core forming method that is simple to operate and convenient for positioning and supporting the sand core during casting. [0004] The technical solution of the present invention is: a manual core forming method, comprising...

AI Technical Summary

Problems solved by technology

[0002] In the trial production stage of product casting, there are many hand-made sand core heads that form the inner cavity of the casting with small (diameter less than 10mm) and an aspect ratio greater than 5. It is difficult to shape the sand core head during core making, which affects the sand core head. The positioning and supporting functions of sand cores have become a major problem in core head forming

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