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Method for quickly manufacturing high-temperature alloy hollow blade casting

A technology of hollow blades and high-temperature alloys, which is applied in the direction of casting molds, casting mold components, manufacturing tools, etc., to achieve the effect of reducing costs and reducing production cycles

Inactive Publication Date: 2011-05-04
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, rapid automatic prototyping technology has been applied in the precision casting process to a certain extent, but it is basically still in the stage of preparing wax-based models, and still needs processes such as coating shell, dewaxing, roasting, pouring, and cleaning, which still take a long time , only saves the manufacturing time and cost of the wax mold, but there are still great difficulties in the preparation of superalloy castings with a hollow structure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First prepare the rapid prototyping powder. The ceramic powder in the rapid prototyping powder is aluminum oxide-based ceramic powder. The particle size of the powder is 30nm, and the ratio of coarse powder to fine powder is 60:40; the binder of the rapid prototyping powder is phenolic resin powder; the ceramic powder and phenolic resin powder are mixed by ball milling; the ceramic powder and phenolic resin The mass ratio of the solidifying agent is 85:15, and the curing agent urotropine is 8% of the mass of the phenolic resin; the grinding ball is made of ceramic ball, and the mass ratio of the ceramic ball to the rapid prototyping powder is 5:1; the ball milling time is 10 hours Prepare the molding powder; after the rapid prototyping powder is formed, use water cleaning technology to clean the powder on the surface of the ceramic core and the shell blank, and then dry it in the air; clean the ceramic core and shell blank after water cleaning The blank is soaked in sil...

Embodiment 2

[0025] First prepare the rapid prototyping powder. The ceramic powder in the rapid prototyping powder is aluminum oxide-based ceramic powder. The particle size of the powder is 20nm, and the ratio of coarse powder to fine powder is 80:20; the binder of rapid prototyping powder is phenolic resin powder; ball milling method is used to mix ceramic powder and phenolic resin powder; ceramic powder and phenolic resin The mass ratio is 80:20, the curing agent is urotropine, and the addition amount is 12% of the mass of phenolic resin; the grinding ball is ceramic ball, and the mass ratio of ceramic ball to rapid prototyping powder is 5:1; the ball milling time is The molding powder was prepared in 10 hours; after the rapid prototyping powder was formed, the water cleaning technology was used to clean the powder on the surface of the ceramic core and the shell blank, and then dried in the air; the ceramic core and the mold after cleaning the water The shell blank is soaked in silica s...

Embodiment 3

[0027] First prepare the rapid prototyping powder. The ceramic powder in the rapid prototyping powder is made of silica ceramic powder. The particle size is 20nm, and the ratio of coarse powder to fine powder is 80:20; the binder of rapid prototyping powder is furan resin powder; ball milling method is used to mix ceramic powder and furan resin powder; the quality of ceramic powder and furan resin The ratio is 90:10, the amount of curing agent ammonium chloride aqueous solution is 12% of the mass of furan resin, the mass ratio of ammonium chloride to water is 3:1; the grinding balls are ceramic balls, and the mass ratio of ceramic balls to rapid prototyping powder is 4:1; the ball milling time is 10 hours to obtain rapid prototyping powder; after the rapid prototyping powder is formed, the powder on the surface of the model is cleaned by water cleaning technology, and then dried in the air; the ceramic core after water cleaning and The shell blank is soaked in silica sol for 1...

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Abstract

The invention discloses a method for quickly manufacturing a high-temperature alloy hollow blade casting, which comprises: designing an integrated ceramic mold core and mold shell with a computer; preparing quick forming powdered material; manufacturing an integrated ceramic mold core and mold shell biscuit by quick forming technology; roasting the integrated ceramic mold core and mold shell biscuit; casting and cleaning a blade; and separating the blade from the mold core. The invention aims to develop a process for quickly manufacturing a high-temperature alloy casting with a hollow structure, and has the advantages of manufacturing the high-temperature alloy casting with the hollow structure by using the quick forming technology, reducing manufacturing period and reducing cost.

Description

technical field [0001] The invention belongs to the field of rapid prototyping, in particular to a high-temperature alloy hollow vane rapid casting process. Background technique [0002] Superalloys are widely used as blade materials in the fields of aero-engines and gas turbines. With the development of modern technology, the structure of the blade is becoming more and more complex, and the temperature bearing capacity of the blade is getting higher and higher, but the material's ability to withstand high temperature can no longer meet the needs of engines and gas turbines, and the hollow blade using gas cooling technology It can make the superalloy have higher high temperature bearing capacity. Therefore, hollow blades are particularly widely used in aerospace, shipbuilding, energy, chemical and other industrial fields. At present, the internal cooling structure of hollow blade castings is becoming more and more complex, the design of its cooling channels is becoming mor...

Claims

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Application Information

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IPC IPC(8): B22C9/22B22C1/22
Inventor 毛萍莉姜卫国刘正袁国涛霍成鹏
Owner SHENYANG POLYTECHNIC UNIV
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