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Production method of regenerating metal alloy from imperfect fine powder using nickel aluminium alloy catalyst

A nickel-aluminum alloy and metal alloy technology is applied in the production field of nickel-aluminum alloy catalyst residual fine powder reconstituted metal alloy, which can solve problems such as unstable product quality, shortened catalytic life, and environmental pollution by nickel-aluminum alloy fine powder, and achieve Conducive to environmental protection, good product quality, strong effect

Inactive Publication Date: 2007-01-17
锦州市催化剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problems of polluted environment, unstable product quality, and shortened catalytic life of smelting nickel-aluminum alloy fine powder by electroslag furnace remelting method, and provide a non-environmental pollution, good product quality, catalytic Production method of long-life nickel-aluminum alloy catalyst residual fine powder reconstituted metal alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1.1. Compress the nickel-aluminum alloy residual fine powder with a pressure of 70MPa;

[0015] 1.2. Put the pressed nickel-aluminum fine powder block into the sintering furnace, start the vacuum system, and at the same time, heat the nickel-aluminum fine powder block. After 1 hour, heat it to 50°C, and the vacuum degree in the furnace is 0.1Pa;

[0016] 1.3. Stop vacuuming, continuously feed argon as a protective gas, and keep the pressure in the furnace at 0.6 MPa, and continue to heat the nickel-aluminum fine powder block. After 3 hours, heat it to 500 ° C, and after 12 hours, put the It is heated to 800°C;

[0017] 1.4. Stop heating, keep warm for 10 hours, then stop feeding argon gas, cool naturally to room temperature and leave the furnace to obtain nickel-aluminum metal alloy.

Embodiment 2

[0019] 2.1. Compress the nickel-aluminum alloy residual fine powder with a pressure of 90MPa;

[0020] 2.2. Put the pressed nickel-aluminum fine powder block into the sintering furnace, start the vacuum system, and at the same time, heat the nickel-aluminum fine powder block. After 3 hours, heat it to 150°C, and the vacuum degree in the furnace is 1Pa;

[0021] 2.3. Stop vacuuming, continuously feed argon as a protective gas, and keep the pressure in the furnace at 0.2 MPa, and continue to heat the nickel-aluminum fine powder block. After 8 hours, heat it to 600 ° C, and after 10 hours, put the It is heated to 1000°C;

[0022] 2.4, stop heating, keep warm for 14 hours, then stop feeding argon, cool naturally to room temperature and leave the furnace to obtain nickel-aluminum metal alloy.

Embodiment 3

[0024] 3.1. Compress the nickel-aluminum alloy residual fine powder with a pressure of 80MPa;

[0025] 3.2. Put the pressed nickel-aluminum fine powder block into the sintering furnace, start the vacuum system, and at the same time, heat the nickel-aluminum fine powder block. After 2 hours, heat it to 100°C, and the vacuum degree in the furnace is 0.5Pa;

[0026] 3.3. Stop vacuuming, and continuously feed argon as a protective gas. The pressure in the furnace is 0.5 MPa, and continue to heat the nickel-aluminum fine powder block. After 12 hours, heat it to 700 ° C. After another 15 hours, the It is heated to 1200°C;

[0027] 3.4. Stop heating, keep warm for 12 hours, then stop feeding argon gas, cool naturally to room temperature and leave the furnace to obtain nickel-aluminum metal alloy.

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Abstract

The invention relates to an alummel catalyst deficient fine powder recreating metal alloy manufacturing method. It solves the problems of polluting environment, unstable product quality, reducing catalyzing life by electro-slag furnace re-melting process. Its manufacturing method includes the following steps: using 70MPa-90MPa pressure to make the alummel deficient fine powder form; putting the formed fine powder block to sintering furnace; starting vacuum system; heating the block for 1-3 hours; heating up 50-150 centigrade degree; vacuum degree is 0.1Pa-1Pa; stopping vacuum pumping; inputting argon gas as protection gas; furnace pressure is 0.2MPa-0.6MPa; heating the block for 3-12 hours; heating up 500-700 centigrade degree; heating up 800-1200 centigrade degree after 10-15 hours; stopping heating and keeping the temperature for 10-14 hours; then stopping inputting argon; naturally cooling to room temperature to draw a charge. Then the alummel is gained.

Description

technical field [0001] The invention belongs to a production method of a metal alloy, in particular to a production method of a nickel-aluminum alloy catalyst residual fine powder reconstituted metal alloy. Background technique [0002] Nickel-aluminum alloy catalysts are widely used in medicine, chemical industry, pesticides, dyes and other fields abroad. With the continuous progress of my country's science and technology and the continuous development of the economy, the domestic demand for nickel-aluminum alloy catalysts is also increasing. At present, nickel-aluminum alloy catalysts are usually produced by a combination of electric furnace smelting and mechanical crushing, that is, nickel and aluminum are made into nickel-aluminum alloy by electric furnace smelting, and then nickel-aluminum alloy is crushed into nickel-aluminum by mechanical crushing. The alloy powder is then sorted into 20-120 mesh nickel-aluminum alloy powders, which are subjected to activation treatm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22C1/04
CPCY02P10/20
Inventor 张东培常国威
Owner 锦州市催化剂有限公司
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