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A kind of titanium-cobalt alloy and preparation method thereof

A titanium-cobalt alloy and cobalt powder technology, applied in the field of alloys, can solve the problems of uneven alloy composition, alloy liquid pollution, violation of environmental protection, etc., and achieve the effects of low impurity content, environmental protection, and enhanced corrosion resistance.

Active Publication Date: 2020-11-06
宇龙精机科技(浙江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, those skilled in the art continue to carry out research and development work in the field of titanium-cobalt alloys; in addition, in order to enhance the corrosion resistance of titanium-cobalt alloys, it is usually necessary to dope nickel in titanium-cobalt alloys, but the addition of nickel will violate environmental protection regulations. Requirements; in the process of smelting, each mixing may lead to uneven alloy composition and the introduction of impurities, resulting in contamination of the alloy liquid

Method used

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  • A kind of titanium-cobalt alloy and preparation method thereof
  • A kind of titanium-cobalt alloy and preparation method thereof
  • A kind of titanium-cobalt alloy and preparation method thereof

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preparation example Construction

[0041] In order to solve the above problems, a second aspect of the present invention provides a method for preparing a titanium-cobalt alloy, comprising the following steps:

[0042] S1: Mix the formula quantity of tungsten carbide, titanium carbide, copper-zinc composite powder and chromium carbide evenly, and grind to obtain component A; mix the formula quantity of cobalt powder and rare earth metal powder evenly, and grind to obtain component B ;

[0043] S2: Add component A into the crucible for primary smelting. After it is completely melted, add component B to it for secondary smelting. After it is completely melted, air-cool to obtain intermediate alloy C;

[0044] S3: heat up the intermediate alloy C, melt it and magnetically stir it until uniform, let it stand still, cast an ingot, take it out of the furnace and air-cool; heat up again, and air-cool it to room temperature to prepare a titanium-cobalt alloy.

[0045] Wherein, the crucible is a quartz crucible. Quart...

Embodiment 1

[0058] The first aspect of embodiment 1 provides a kind of titanium-cobalt alloy, and preparation raw material comprises following composition:

[0059] 75 parts of tungsten carbide, 13 parts of titanium carbide, 27 parts of cobalt powder, 1.5 parts of chromium carbide, 2 parts of rare earth metal powder, 5 parts of copper-zinc composite powder. The ratio of the copper-zinc alloy powder is 1:2. The rare-earth metal powder is a combination of rare-earth metals Dy and Ga at a ratio of 2:1 by weight.

[0060] The second aspect of embodiment 1 provides a method for preparing a titanium-cobalt alloy, comprising the following steps:

[0061] S1: Mix the formula quantity of tungsten carbide, titanium carbide, copper-zinc composite powder and chromium carbide evenly, and grind to obtain component A; mix the formula quantity of cobalt powder and rare earth metal powder evenly, and grind to obtain component B ;

[0062] S2: Add component A into the crucible, vacuumize the furnace bod...

Embodiment 2

[0065] The first aspect of embodiment 2 provides a kind of titanium-cobalt alloy, and preparation raw material comprises following composition:

[0066] 60 parts of tungsten carbide, 11 parts of titanium carbide, 25 parts of cobalt powder, 1 part of chromium carbide, 1 part of rare earth metal powder, 2 parts of copper-zinc composite powder. The ratio of the copper-zinc alloy powder is 1:2. The rare-earth metal powder is a combination of rare-earth metals Dy and Ga at a ratio of 2:1 by weight.

[0067] The second aspect of Example 2 provides a method for preparing a titanium-cobalt alloy, and the preparation steps are the same as those in Example 1.

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Abstract

The invention provides a titanium-cobalt alloy. The raw materials for preparation include the following components: tungsten carbide, titanium carbide, cobalt powder, chromium carbide, rare earth metal powder, and copper-zinc composite powder. The invention provides a titanium-cobalt alloy, which meets the requirements of environmental protection while enhancing corrosion resistance. In addition, the titanium-cobalt alloy provided by the invention has high solid capacity, low free carbon content, and is pure and low in impurity content.

Description

technical field [0001] The invention relates to an alloy, more specifically a titanium-cobalt alloy and a preparation method thereof. Background technique [0002] Titanium-cobalt alloys provide high tensile strength over a wide temperature range, yet are relatively light in weight, hence, titanium-cobalt alloys are used in various demanding applications such as aircraft components, medical devices, etc. [0003] Plastic forming of titanium-cobalt alloys is an expensive process. The tools required for plastic forming of titanium-cobalt alloys must be able to withstand heavy loads during deformation. At the same time, the casting of titanium-cobalt alloys is complicated by the high melting temperature of titanium-cobalt alloys and the excessive reactivity of molten titanium-cobalt alloys with mold materials and ambient oxygen. As such, titanium-cobalt alloys are some of the most difficult metals to process in a cost-effective manner. Therefore, those skilled in the art con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/08C22C1/10C22C1/03
CPCC22C1/1036C22C29/005C22C29/067C22C29/08C22C1/1047
Inventor 鲍成强
Owner 宇龙精机科技(浙江)有限公司
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