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Method for measuring alloy feeding distance

An alloy and distance technology, applied in the field of alloys, can solve the problem of inaccurate and complete feeding distance data of aviation magnesium-aluminum alloy materials

Inactive Publication Date: 2021-01-01
HARBIN DONGAN ENGINE GRP
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Problems solved by technology

[0004] The invention provides a method for measuring alloy feeding distance, obtains the data curve of alloy feeding distance, solves the problem that the feeding distance data of aviation magnesium-aluminum alloy materials is not accurate and complete, and provides an accurate and reliable reference basis for the design of casting process schemes. Improve the process yield and material utilization rate of aerospace castings

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  • Method for measuring alloy feeding distance
  • Method for measuring alloy feeding distance

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Embodiment Construction

[0037] Image 6 It is a schematic flowchart of the method for measuring the alloy feeding distance provided by the present invention, with reference to FIGS. 1-6 , the method for measuring the alloy feeding distance according to the present invention includes the following steps:

[0038] 1) Design the experimental pouring plan for feeding distance. The experimental pouring plan should ensure that the molten metal flow is filled smoothly, and there are no defects such as entrainment, suffocation, and oxidation, and the final casting is complete;

[0039] 2) Determine the test piece size (specimen thickness), riser size, cold iron position and size specification series required for the experiment, as shown in Table 1;

[0040] Table 1 Dimensions and Specifications Series

[0041]

[0042] 3) Design and manufacture a set of special tooling for feeding distance experiment according to the experimental pouring plan to ensure that the tooling can be used for pouring experiments...

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Abstract

The invention provides a method for measuring an alloy feeding distance. The method comprises the following steps: pouring alloy to be measured into a preset tool which is used for casting a test piece; after pouring of the alloy to be measured is completed, obtaining a casting test piece is obtained, and cleaning and polishing the casting test piece; and measuring the effective feeding distance Eof the casting test piece. The feeding distances of the magnesium-aluminum alloys with different material marks are subjected to experimental measurement, and in combination with an X-ray transmission detection means, a feeding distance trend chart of the alloys with different sizes and specifications can be analyzed and drawn according to the obtained loose defect distribution condition. According to the method, the purpose of providing real and complete aviation magnesium-aluminum alloy feeding distance data can be finally achieved.

Description

technical field [0001] The invention belongs to the technical field of alloys, and in particular relates to a method for measuring the feeding distance of alloys. Background technique [0002] Mastering the real effective feeding distance of the alloy is very important in the design stage of the casting process plan. At present, the way to obtain the feeding distance of the riser is to judge based on experience or obtain an approximate value by consulting relevant casting manuals. [0003] Moreover, this approximation generally only corresponds to general magnesium alloys, aluminum alloys, cast steel, cast iron, etc. For the common materials of aviation magnesium and aluminum alloys, there is currently no real and complete material feeding distance data obtained through the actual measurement plan, which seriously affects the design of the casting process plan. accuracy. SUMMARY OF THE INVENTION [0004] The invention provides a method for measuring the alloy feeding dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00G01B21/08G01N23/02
CPCG01B21/00G01B21/08G01N23/02
Inventor 张爽张永夏峰燕伟王学民刘洪汇
Owner HARBIN DONGAN ENGINE GRP
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