Rapid investment casting method of complex thin-wall component

A technology of thin-walled parts and investment casting, which is applied to casting molding equipment, molds, mold components, etc., can solve the problems of long production cycle, complicated materials, environmental pollution, etc., shorten the production cycle, and omit the dewaxing process. , the effect of reducing production costs

Inactive Publication Date: 2010-10-20
XUZHOU SHENGHAI MACHINERY MFG TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of complex traditional investment casting shell making process, long production cycle, complicated mat

Method used

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  • Rapid investment casting method of complex thin-wall component
  • Rapid investment casting method of complex thin-wall component
  • Rapid investment casting method of complex thin-wall component

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Embodiment Construction

[0026] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0027] Such as figure 1 As shown, the process of the present invention is: use polystyrene rapid prototyping technology to produce thin-walled polystyrene foam investment casting patterns and pouring systems of complex shapes, and improve the surface quality of the casting patterns through the surface low-temperature wax infiltration process, and then After surface treatment, the foamed plastic module is slurried for multiple times to make the melted model shell, roasted at high temperature to completely gasify the foamed plastic, and finally cast metal to obtain a precision casting.

[0028] The embodiment is a complex curved thin-walled sandwich part of the head of a high-speed train.

[0029] Reference figure 2 with image 3 The complex curved thin-walled sandwich structure of the head of the high-speed train shown, because the part has a complex curved structu...

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Abstract

The invention discloses a rapid investment casting method of a complex thin-wall component, which belongs to the technical field of the precise casting, and is characterized in that polystyrene rapid formation technology is utilized to produce a thin-wall polystyrene foamed plastic investment casting pattern and a pouring system with complex shapes, the surface quality of the casting pattern is improved through a surface low-temperature wax infiltration process, the foamed plastic mould after the surface treatment is pulped for a plurality of times to produce an investment pattern molded shell, the investment pattern molded shell is roasted at high temperature, so the foamed plastic is completely gasified, and finally metal is poured to obtained the precise cast. Compared with the traditional investment casting method, the investment casting method has the advantages that the metal mould is free from being made, the formation efficiency of the cast is high, the precision is good, and the production period is short, and is particularly applicable to the middle and small rapid mass production of the complex shaped precise cast and the trial production of the new product.

Description

Technical field [0001] The invention belongs to the technical field of precision casting. Specifically, it is a rapid investment casting method for thin-walled complex parts. It is an investment casting method for thin-walled complex parts based on rapid prototyping technology of polystyrene foam. Background technique [0002] Investment casting, also known as lost wax casting, is an excellent process technology in the foundry industry, and its application is very wide. It is not only suitable for casting of various types and alloys, but also produces castings with higher dimensional accuracy and surface quality than other casting methods, and even complex, high-temperature resistant, and difficult-to-process castings that are difficult to form by other casting methods. Investment casting can be used. [0003] Generally speaking, the investment process is to use fusible materials, such as wax, to make a fusible model (investment or model for short), apply several layers of speci...

Claims

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Application Information

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IPC IPC(8): B22C9/04B22C9/22
Inventor 孙琨鲍崇高方亮王治国岑启宏齐笑冰
Owner XUZHOU SHENGHAI MACHINERY MFG TECH
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