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Method for preparing titanium alloy cast ingot containing alloy component

A titanium alloy and alloy technology, applied in the field of preparation of titanium alloy ingots, can solve problems such as unsuitable for mass production, excessive impurities, and difficult to break, so as to reduce the dependence on related molds and equipment, facilitate large-scale production, Possible effect of reducing impurities

Active Publication Date: 2012-06-06
西安稀有金属材料研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of these two methods are: complex process and high cost; excessive impurities appear (impurities are easily brought into the intermediate link), and the prepared master alloy has good toughness and is difficult to break. In actual production, specific operations are difficult and not suitable for batch production. Production

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  • Method for preparing titanium alloy cast ingot containing alloy component

Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] The preparation process of ton-level φ460mm Ti-6Ta alloy ingot is as follows:

[0019] (1) Powder mixing: Ti powder particle size -100~-200 mesh, Ta powder particle size -200~-235 mesh, mix the powder on the V-type mixer according to the ratio of Ti powder: Ta powder=3:2, and the powder mixing speed : 50~120r / min, mixing time 1~8 hours.

[0020] (2) Preparation of alloy bag: use 0.3 mm thick titanium foil to wrap the uniformly mixed powder into an alloy bag, and the mixed powder is evenly distributed in the longitudinal direction of the alloy bag.

[0021] (3) Pressing the electrode: use a 3000-ton hydraulic press to press the electrode block. In the lower mold of the pressing mold, first lay a layer of sponge titanium substrate, then spread a layer of fine particle sponge titanium substrate, put it into the alloy bag, and then lay a layer The fine-grained titanium sponge is put into an alloy bag, and then a layer of fine-grained titanium sponge is laid, and then the r...

Embodiment 2

[0025] The preparation process of Ti-5Ta-1.8Nb alloy ingot is as follows:

[0026] (1) Powder mixing: Ti powder particle size -100~-200 mesh, Ta powder particle size -200~-325 mesh, mix the powder on the V-type powder mixer according to the ratio of Ti powder: Ta powder=3:2, and mix the powder Speed: 50~120r / min, mixing time 1~8 hours.

[0027] (2) Preparation of alloy bag: use 0.3 mm thick titanium foil to wrap the uniformly mixed powder into an alloy bag, and the mixed powder is evenly distributed in the longitudinal direction of the alloy bag.

[0028] (3) Matrix: Cut the Nb-Ti intermediate alloy wire into small pieces, and mix it with sponge titanium to form a sponge titanium matrix.

[0029] (4) Electrode pressing: A 500-ton hydraulic press is used to press the electrode block. In the lower mold of the pressing mold, a layer of titanium sponge substrate is first laid, and then a layer of fine particle titanium sponge substrate is laid, put into an alloy bag, and then a l...

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Abstract

The invention discloses a preparation method of a titanium alloy ingot containing alloy elements, the process of the method is that: alloy elements powder and titanium powder with high melting point and high density are blended on a mixer for a certain period of time according to a certain proportion, and the equally mixed double metals or multi metals powder is made into an alloy package, which is added to substrate materials, so as to press electrode blocks and assemble and weld electrodes, and then molten for 2 to 3 times in a vacuum self-consuming arc furnace, finally homogenous titanium alloy ingots are prepared. The invention has the advantages of simple preparation technique, low cost, and convenient production organization, so the invention can greatly enhance the industrial production efficiency of the titanium alloy ingots, and is applicable to the preparation of various or two-element or multi-element titanium series alloy ingots with high melting point and high density element.

Description

technical field [0001] The invention relates to a method for preparing a titanium alloy ingot, in particular to a method for preparing a titanium alloy ingot containing alloy components. Background technique [0002] Titanium alloy materials containing high melting point and high specific weight elements, such as Ti-Ta, Ti-Ta-Nb, Ti-Mo, Ti-W, Ti-Hf series alloys, due to their excellent corrosion resistance and biocompatibility , has broad application prospects in nuclear industry, medical treatment, chemical industry and other fields. This type of titanium alloy contains elements such as tantalum, niobium, tungsten, molybdenum, and hafnium. Compared with titanium, it has the characteristics of high melting point and high specific gravity. Using ordinary smelting process, it is difficult to alloy, and it is easy to form high-density inclusions in the ingot, which affects the quality of the titanium alloy ingot. [0003] At present, there are two technical solutions for the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D23/06
Inventor 杨英丽吴金平赵彬林桥赵恒章殷京瓯苏航标郭荻子
Owner 西安稀有金属材料研究院有限公司