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Method for manufacturing small-core sand core

A sand core and core head technology, applied in the field of making small core head sand cores, can solve the problems of unguaranteed sand core shape and strength, difficulty in filling sand, lack of meat in the sand core, etc. Good, eliminate the dead corners of sand filling and solve the effect of sand removal

Inactive Publication Date: 2010-11-10
浙江红马铸造有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, it is always difficult to fill sand when making small core head sand cores by hand, and the produced sand cores often have a lack of flesh, which makes the shape and strength of the sand cores unguaranteed.

Method used

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  • Method for manufacturing small-core sand core
  • Method for manufacturing small-core sand core

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Embodiment Construction

[0010] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0011] figure 1 Shown is the product obtained by the existing method of making small-core sand cores. It is not easy to fill the sanding mouth of the small-core core box with sand to fill the large internal space with sand, and the produced sand cores often have a lack of flesh, which makes The shape and strength of the sand core are not guaranteed.

[0012] The method for making small core head sand cores in the present invention comprises the following steps: using two core boxes 1 to fill sand respectively, pounding the sand and scraping the sand to make two half cores 2; finally assembling the two half cores 2 into a complete sand core. figure 2 In order to use the present invention to make a schematic diagram of a half-core, another half-core can be made in the split core box by the same method, and the two half-cores are assembled i...

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Abstract

The invention discloses a method for manufacturing a small-core sand core, which comprises the following steps of: filling sand into two core boxes respectively, and tamping and flattening the sand to form two half cores; and finally assembling the two half cores into an integral sand core. Because of the adoption of the technical scheme, the sand core with unqualified shape and strength because the sand is not fully filled is not produced, a sand filling dead corner can be eliminated, and manufacture of the sand core with qualified shape and strength can be ensured. The method not only solves the problem of poor casting cavity shape because the cast sand core is not fully filled, but also solves the problems of sand drop caused by poor sand core strength and rat casting cavity.

Description

technical field [0001] The invention relates to a method for making a small core head sand core. Background technique [0002] At present, it is always difficult to fill sand when making small core head sand cores by hand, and the produced sand cores often have a lack of flesh, which makes the shape and strength of the sand cores unguaranteed. It is not easy to fill the large inner space with sand when filling the sanding port of the small core head core box. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for making sand cores with small core heads, which can eliminate the dead angle of sand filling and ensure the production of sand cores with qualified shape and strength. [0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: the method for making a small core head sand core includes the following steps: using two core boxes to f...

Claims

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Application Information

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IPC IPC(8): B22C9/10
Inventor 何凯
Owner 浙江红马铸造有限公司
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