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Method for reducing special-shaped powder in high-alloying nickel-based alloy powder

A nickel-based alloy and alloying technology, applied in the field of reducing irregular powder in high-alloyed nickel-based alloy powder, can solve the problem of excessive irregular powder, reduce porosity, improve alloy fatigue life, and increase powder tap density Effect

Active Publication Date: 2021-05-14
SINO EURO MATERIALS TECH OF XIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for reducing the irregular powder in the high-alloyed nickel-based alloy powder, and solve the problem of excessive abnormal-shaped powder in the nickel-based alloy powder

Method used

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  • Method for reducing special-shaped powder in high-alloying nickel-based alloy powder
  • Method for reducing special-shaped powder in high-alloying nickel-based alloy powder
  • Method for reducing special-shaped powder in high-alloying nickel-based alloy powder

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Embodiment 1

[0037] A method of reducing the irregular powder in the high alloyed nickel-based alloy powder of the present invention is specifically implemented according to the following steps:

[0038] Step 1, preparing nickel-based superalloy rods through vacuum horizontal continuous casting and low temperature gradient cooling process;

[0039] Step 2, performing the first solid solution treatment on the nickel-based superalloy rod obtained in step 1; the first solid solution treatment is specifically: the solution temperature is 900°C, and the temperature is kept for 1 hour, and then cooled in an air atmosphere;

[0040] Step 3, performing a second solid solution treatment on the nickel-based superalloy rod obtained in step 2; the second solid solution treatment is specifically: the solid solution temperature is 1160 ° C, and after 4 hours of heat preservation, it is cooled in an air atmosphere;

[0041] Step 4, prepare the nickel-based superalloy rod obtained in step 2 into nickel-base...

Embodiment 2

[0044] A method of reducing the irregular powder in the high alloyed nickel-based alloy powder of the present invention is specifically implemented according to the following steps:

[0045] Step 1, preparing nickel-based superalloy rods through vacuum horizontal continuous casting and low temperature gradient cooling process;

[0046] Step 2, performing the first solid solution treatment on the nickel-based superalloy rod obtained in step 1; the first solid solution treatment is specifically: the solution temperature is 950°C, and the temperature is kept for 5 hours, and then cooled in an air atmosphere;

[0047] Step 3, performing a second solid solution treatment on the nickel-based superalloy rod obtained in step 2; the second solid solution treatment is specifically: the solution temperature is 1185° C., and the temperature is kept for 8 hours, and then cooled in an air atmosphere;

[0048] Step 4, prepare the nickel-based superalloy rod obtained in step 2 into nickel-bas...

Embodiment 3

[0051] A method of reducing the irregular powder in the high alloyed nickel-based alloy powder of the present invention is specifically implemented according to the following steps:

[0052] Step 1, preparing nickel-based superalloy rods through vacuum horizontal continuous casting and low temperature gradient cooling process;

[0053] Step 2, performing the first solid solution treatment on the nickel-based superalloy rod obtained in step 1; the first solid solution treatment is specifically: the solution temperature is 1000°C, and the temperature is kept for 6 hours, and then cooled in an air atmosphere;

[0054] Step 3, performing a second solid solution treatment on the nickel-based superalloy rod obtained in step 2; the second solid solution treatment is specifically: the solid solution temperature is 1210°C, and the temperature is kept for 12 hours, and then cooled in an air atmosphere;

[0055] Step 4, prepare the nickel-based superalloy rod obtained in step 2 into nick...

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Abstract

The invention discloses a method for reducing special-shaped powder in high-alloying nickel-based alloy powder. The method is specifically implemented according to the following steps that 1, a nickel-based high-temperature alloy bar is prepared through a vacuum horizontal continuous casting and low-temperature gradient cooling process; 2, the nickel-based high-temperature alloy bar obtained in the step 1 is subjected to first-time solution treatment; 3, the nickel-based high-temperature alloy bar obtained in the step 2 is subjected to secondary solution treatment; 4, the nickel-based high-temperature alloy bar obtained in the step 2 is prepared into nickel-based alloy powder through plasma rotation electrode manufacturing powder manufacturing equipment; and 5, the nickel-based alloy powder prepared in the step 4 is sieved and packaged under the protection of inert gas. According to the method for reducing the special-shaped powder in the high-alloying nickel-based alloy powder, and the problem that too much special-shaped powder exists in the nickel-based alloy powder is solved.

Description

technical field [0001] The invention belongs to the technical field of metal powder preparation, and in particular relates to a method for reducing irregular powder in high-alloyed nickel-based alloy powder. Background technique [0002] Nickel-based superalloys are mainly used to manufacture hot-end parts of engines such as turbine disks. With the improvement of engine performance, the thrust-to-weight ratio, gas temperature before the turbine, and compressor boost ratio continue to increase, while the number of compressor and turbine stages gradually decreases. , so that the single-stage load continues to increase, the stress level of the parts is getting higher and higher, and the working conditions are getting worse and worse. There are more stringent requirements for the high-temperature strength, fatigue performance and durability of the material. In the process of superalloy preparation, its performance can only be improved by continuously increasing the composition o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/14C22F1/10
CPCB22F9/14C22F1/10
Inventor 宋嘉明徐伟瞿宗宏李鑫赖运金王庆相梁书锦
Owner SINO EURO MATERIALS TECH OF XIAN CO LTD
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