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Method for casting aluminum-magnesium alloy aeroengine box

An aero-engine and magnesium alloy technology, which is applied in casting molding equipment, casting molds, and casting mold components, etc., can solve the problems of long processing cycle, heavy parts weight, occupation of production resources, etc., so as to overcome the inability to cast and solve the development bottleneck. Effect

Active Publication Date: 2013-11-27
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This casing processing and forming method occupies a large amount of production resources, the processing cycle is long, the waste of metal materials is large, the cost is high, and the weight of the parts is heavy.

Method used

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  • Method for casting aluminum-magnesium alloy aeroengine box
  • Method for casting aluminum-magnesium alloy aeroengine box
  • Method for casting aluminum-magnesium alloy aeroengine box

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Embodiment Construction

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Wherein, the same parts adopt the same reference numerals.

[0024] As mentioned in the background technology section, aero-engine casing parts have large diameters, thin walls, and complex structures, which are difficult to combine and pour into molds through traditional non-ferrous alloy sand casting.

[0025] For example, figure 1 What is shown is a partial cross-sectional schematic diagram of an aero-engine casing. The aero-engine casing is in the shape of a spiral cone as a whole, that is, one end is large and the other end is small. The diameter of the big end can usually reach 900-1200mm, while the casing The wall thickness of the main body is very thin, with an average wall thickness of 2.5-3mm. Various complex structures ...

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Abstract

The invention relates to a method for casting an aluminum-magnesium alloy aeroengine box. The aeroengine box is of a spiral cone shape and has a big head and a small head, wherein the diameter of the big-head end is 900-1,200 mm, the average wall thickness is about 2.5-3 mm, and the aeroengine box is formed through integral casting of aluminum-magnesium alloy. The method is used for solving the problem that the aeroengine box can not be cast by the traditional casting methods due to the structural features of the aeroengine box. According to the method, during the combination and assembly of a casting form, the casting form is combined in a manner that the big head is located at the downside, then, the small head is enabled to face downwards through inverting, and finally, aluminum-magnesium alloy is cast from a casting port of the small-head end from bottom to top. According to the method disclosed by the invention, a novel casting form combining and casting manner is provided, the defects that the existing casting methods can not be applied to casting are overcome, and the bottleneck in development of aeroengine box cast parts is solved.

Description

technical field [0001] The invention relates to a casting method of aero-engine components, in particular to a casting method of a large-diameter complex thin-wall casing of an aero-engine. The aero-engine casing is cast from aluminum and magnesium alloys. Background technique [0002] The casing parts in aero-engines, such as the front casing, are generally large in size, generally above Φ800mm in diameter, thin in wall thickness, and complex in structure. The main shape is a spiral cone structure, and the constituent materials are generally high-temperature non-ferrous alloys. Such as aluminum alloy or magnesium alloy. It is very difficult to use the traditional non-ferrous alloy sand casting mold combination and pouring molding, especially the blade part is very difficult to form. [0003] For example, the outline size of an aluminum and magnesium alloy casing casting is Φ900mm, the wall thickness of the main body is 2.5-3mm, the inner and outer rings are connected by mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22
Inventor 胡斌欧阳春芳黄艳松
Owner CHINA HANGFA SOUTH IND CO LTD
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