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Preparation method for precision casting composite shell mold reinforcing

A composite type and shell mold technology, which is applied in the direction of casting molding equipment, casting molds, and casting mold components, can solve problems such as running out of steel, limited strength, and easy cracking of membrane shells, and achieve low cost, control cracking and running out of steel, Simple operation effect

Inactive Publication Date: 2019-04-12
安徽应流铸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be selected according to the surface quality requirements of the product, but in actual production, due to the high quality of the product, the strength of the membrane shell is limited when the number of layers is limited. The shell is easy to crack and run out of molten steel, resulting in waste and increasing costs

Method used

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Embodiment Construction

[0016] Embodiments of the invention are described in detail below, but the invention can be implemented in a number of different ways as defined and covered by the claims:

[0017] A preparation method for reinforcement of precision casting composite shell mold, characterized in that: comprising the following steps:

[0018] S1. Process preparation: Put the water glass solution prepared according to the process or the silica sol solution prepared according to the process into the solution pool. The length, width, and height of the solution pool are set to 2m, 2m, and 1m respectively, and ensure that the surrounding area of ​​the solution pool No other impurities, then prepare iron wire with a diameter of 1-2mm;

[0019] S2. Making the shell mold: Select the qualified wax film, apply silica sol on the wax film, and then evenly stick 30-60 mesh quartz sand, and form a layer of shell film after applying silica sol and glued quartz sand on the surface of the wax film. The shell f...

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Abstract

The invention discloses a preparation method for precision casting composite shell mold reinforcing. The preparation method comprises the following steps of S1 technological preparation, S2 shell moldmanufacturing, S3 preliminary reinforcing of a shell mold, S4, medium reinforcing of the shell mold and S5 deep reinforcing of the shell mold. The preparation method is easy to operate and low in cost, and the problems of cracking and molten steel flowing during shell mold casting are effectively controlled.

Description

technical field [0001] The invention relates to the technical field of precision casting, in particular to a method for preparing a composite shell mold reinforcement of precision casting. Background technique [0002] With the continuous development of my country's industry, the demand for precision cast iron alloy castings is gradually increasing. Widely used in aviation, automobile, machinery and other fields. And gradually extended to large pieces, the requirements for the surface quality of products are getting higher and higher. [0003] When casting precision cast iron alloys, often due to the characteristics of high product quality, complex structure, strict technical requirements, and high surface quality requirements, the common methods are wax film shell making process and water glass composite process. It can be selected according to the surface quality requirements of the product, but in actual production, due to the high quality of the product, the strength o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22C3/00B22C1/00
CPCB22C1/00B22C3/00B22C9/04
Inventor 谭野杜应流施长坤李景鹏张正鹏张明智
Owner 安徽应流铸业有限公司
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