Design and structure for controllable atmosphere rotating furnace for oxidizing albronze alloy powder

A powder oxidation, copper-aluminum alloy technology, applied in the direction of rotary drum furnace, furnace, furnace type, etc., can solve the problems of heat utilization rate, low production efficiency, high labor intensity, poor process controllability, etc., and achieve high production efficiency, Reduce labor intensity, good oxidation effect

Active Publication Date: 2009-03-25
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Problems solved by technology

[0030] In order to solve the technical problems of low equipment heat utilization rate, low production efficiency, high labor intensity, and poor process controllability in the current oxygen distribution process of dispersed copper production, the present invention provides a copper-aluminum alloy powder oxidation oxygen distribution The design and structure of the controllable atmosphere rotary furnace has the advantages of reasonable design structure, simple structure, good heat preservation effect, improved product quality and production efficiency of dispersed copper, and can also be used for oxidation, hydrogenation and nitriding of various metal powders. deal with

Method used

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  • Design and structure for controllable atmosphere rotating furnace for oxidizing albronze alloy powder

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Embodiment 1

[0061] Example 1: Open the roller cover, load 100kg of copper-aluminum alloy powder with 0.2wt% Al content, cover the roller cover, and vacuumize after sealing. After the vacuum degree meets the requirements of use, fill in the required oxygen once, send power to raise the temperature, and at the same time turn on the drum rotation button to make the drum rotate in one direction or two directions at a speed of 5-50 rpm, and heat the furnace to 180 ~500°C, heat preservation. When the pressure in the drum furnace no longer decreases, the reaction ends. Open the drum cover, lift the furnace body, and rotate to discharge powder. That is, the copper-aluminum alloy powder after oxygen distribution is obtained.

Embodiment 2

[0062] Example 2: Open the roller cover, load 100kg of copper-aluminum alloy powder with 0.6wt% Al content, cover the roller cover, and vacuumize after sealing. After the vacuum degree meets the requirements of use, first fill in 1 / 4 of the required oxygen, turn on the roller rotation button, and make the roller rotate in one direction or two directions at a speed of 5 to 50 rpm, and then send power to heat up the furnace to 180~ 500°C, when the pressure in the drum furnace no longer decreases, refill the remaining oxygen to oxidize an atmospheric pressure reaction, repeat this four times, the reaction is over, open the drum cover, lift the furnace body, and rotate the powder to obtain the oxygen-mixed product. Copper aluminum alloy powder.

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Abstract

The invention provides a gas atmosphere controllable revolving furnace structure for the oxygen distribution in the oxidation of copper-aluminum alloy powder, which mainly consists of an air inlet(pumping) pipe, a roller cover, water cooling sleeves, a resistance furnace, rollers, an electrothermal couple pipe, a transmission mechanism, a furnace body bracket and a lifting hook, wherein the resistance furnace is fixed on the furnace body bracket, one end of the furnace body bracket is provided with the lifting hook and is supported by a lower end platform, the other end of the furnace body bracket is provided with a lower end triangular support which can rotate around the triangular support; the inside of the resistance furnace is provided with the roller rotating around the resistance furnace, two ends of the roller(5) arranged outside the resistance furnace are additionally provided with the water cooling sleeves, and the extension end of the roller, which is close to the triangular support end, is provided with the electrothermal couple pipe and is also provided with the transmission mechanism making the rollers rotate. The revolving furnace structure has the advantages that the production efficiency is high; and during the rotation of the rollers, power is fully contacted with the gas atmosphere, and the oxidation time is reduced by increasing the oxygen differential pressure in the rollers. The oxidation time is one-tenth of the oven baking time, so that the oxidation time is shortened.

Description

technical field [0001] The invention belongs to the technical field of rotary furnaces, and in particular relates to the design and structure of a controllable atmosphere rotary furnace for oxidation and oxygen distribution of copper-aluminum alloy powder. Background technique [0002] Oxygen distribution treatment of dispersed copper materials refers to adding the required oxygen in a certain ratio according to the aluminum content in the copper-aluminum alloy powder raw material, so as to ensure that the aluminum can be completely oxidized into a dispersed alumina phase during internal oxidation. The oxygen distribution process can determine the size, distribution and uniformity of the dispersed phase particles in the material, and is one of the key technologies in the preparation and production process of dispersed copper materials. [0003] Usually the surface oxidation of copper-aluminum alloy powder with oxygen or the preparation of internal oxidant is carried out in a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B7/06F27B7/38
Inventor 王永朝陈会东雷竹芳
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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