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Preparation method of tantalum 10 tungsten alloy

A tungsten alloy and alloy technology, which is applied in the field of preparation of tantalum 10 tungsten alloy, can solve the problems of brittleness, uneven structure, and easy falling off of the billet, and achieve the effect of solving the uneven structure of the billet, improving the easy falling off and brittleness

Inactive Publication Date: 2014-02-05
宝鸡市众邦稀有金属材料有限公司
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AI Technical Summary

Problems solved by technology

However, the ingot produced by this method has uneven structure, and the billet is brittle and easy to fall off, so it is necessary to improve

Method used

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Embodiment Construction

[0012] A kind of embodiment of the present invention is described below: the preparation method of tantalum 10 tungsten alloy comprises the following steps:

[0013] 1) Prepare tantalum powder and tungsten powder at a ratio of 9:1, put them into a drum mixer, mix them at a speed of 120r / min for 24 hours, and take them out;

[0014] 2) Pass the mixed powder through a 120-mesh sieve to obtain fine powder;

[0015] 3) Press the fine powder into alloy bars with a 500-ton hydraulic press;

[0016] 4) Put the alloy rods into the vacuum sintering furnace, evacuate to 10-2Pa, heat to 2400°C, keep warm for 2 hours and take out the rough ingot;

[0017] 5) Melting the rough ingot with a vacuum electron beam furnace at least twice to make an alloy ingot;

[0018] 6) Put the alloy ingot into a high-frequency furnace, heat it to 1400°C, take it out and forge it several times to get the finished ingot.

[0019] Because the strength of tantalum 10 tungsten alloy is higher than that of pur...

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Abstract

The invention provides a preparation method of a tantalum 10 tungsten alloy. The preparation method comprises the following steps: after preparing tantalum powder and tungsten powder in proportion, filling the powder into a drum mixer to be fully mixed and screening the powder to obtain fine powder; pressing the fine powder into an alloy bar with a 500ton oil press; putting the alloy bar into a vacuum sintering furnace to be sintered to obtain a raw ingot blank; smelting the raw ingot blank at least twice with a vacuum electron beam furnace to prepare an alloy ingot blank; putting the alloy ingot blank into a high frequency furnace to be heated to 1400 DEG C, then taking out the alloy ingot blank and forging the alloy ingot blank for many times, thus obtaining a finished product of ingot blank. The preparation method has the beneficial effects that through full mixing of tantalum powder and tungsten powder and many times of smelting, the problem of nonuniformity of ingot blank tissues is solved and the problems that the blanks easily fall off and become brittle are improved.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation, and in particular relates to a preparation method of a tantalum-10-tungsten alloy. Background technique [0002] Tantalum 10 tungsten alloy has high high temperature strength, good ductility, weldability and excellent corrosion resistance, suitable for high temperature, high pressure, corrosion resistance and other working environments, widely used in chemical industry, aerospace, atomic energy industry and high temperature Components and other fields; the traditional production process of tantalum 10 tungsten alloy uses more than two times of vacuum electron beam melting or vacuum arc melting to prepare ingots, and then adopts forging or extrusion at a temperature above 1200 ℃ to open the billet, and rolling at a temperature below 500 ℃ system, drawing, etc., and finally can be made into plates, rods, wires, pipes and other products. However, the billet produced by this metho...

Claims

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Application Information

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IPC IPC(8): C22C1/04C22C27/02C22F1/18
Inventor 蒋忠于杜向杰
Owner 宝鸡市众邦稀有金属材料有限公司
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