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Method for producing flat gaskets by coated sand shell mould process

A technology of coated sand and flat gaskets, applied in the direction of casting molds, cores, molding machines, etc., can solve the problems of poor product accuracy and low production efficiency of flat gaskets, achieve high production efficiency, eliminate trachoma, and reduce molding area effect

Inactive Publication Date: 2012-05-02
安徽省辉煌机械制造有限公司
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for producing flat gaskets by a coated sand shell molding process, which solves the problems of low production efficiency and poor product precision in the production of flat gaskets by ordinary sand casting processes

Method used

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  • Method for producing flat gaskets by coated sand shell mould process
  • Method for producing flat gaskets by coated sand shell mould process

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Embodiment Construction

[0019] A method for producing a flat gasket by a film-coated sand shell type process, comprising the following steps:

[0020] (1) Prepare the template: open the core-making mold, spray the release agent in the inner cavity of the core-making mold, and then use the sand-shooting machine's sand-shooting cylinder to press the sand-shooting hole of the core-making mold to shoot sand until the core-making mold After the inner cavity is filled, the sand shooting is finished. When the sand shooting machine is shooting sand, the pressure of the air compressor is controlled to be ≥ 0.5Mpa; after the sand shooting is completed, observe the color of the sand core from the sand shooting hole of the core making mold until After the color reaches yellowish brown, the core-making mold is opened, the mud core is taken out, and the coated sand shell type is obtained after cooling (see figure 1 );

[0021] (2), code type: ten coated sand shell type 1 (see figure 1 ) are stacked to form a pou...

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Abstract

The invention discloses a method for producing flat gaskets by a coated sand shell mould process. The flat gaskets are produced by use of a coated sand mould in a casting manner, the strength of the coated sand mould is high, and the size of a cavity is accurate, thus the sizes of cast products are completely qualified, the defects of sand holes and air holes are eliminated, the yield of cast products is more than 98%, the production efficiency is high, and the moulding area is reduced.

Description

[0001] technical field [0002] The invention relates to the field of manufacturing flat gaskets, in particular to a method for producing flat gaskets by a film-coated sand shell type process. Background technique [0003] The flat gasket product is an accessory on the high-speed iron backing plate. The product requires two flat surfaces, accurate shape and inner hole size, no casting defects (such as air holes, shrinkage holes, sand holes, etc.), and the casting material requirements GB / T450-10 . Due to the light weight and large demand of flat gaskets, if they are produced by ordinary sand casting technology, the castings are prone to deformation, sand holes, pores and other casting defects, and the molding area is large, the production efficiency is low, and the production task is difficult to complete. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a method for producing flat gaskets by a film-coated sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C13/08B22C9/20
Inventor 胡宗信
Owner 安徽省辉煌机械制造有限公司
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