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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: 2008-05-21
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

Method used

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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 powder according to the ratio of Ti powder: Ta powder=3:2 on V-type powder mixer, mix 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 layer is laid Fi...

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Abstract

The invention discloses a method for preparing titanium alloy ingots containing alloy components. The process of the method is: mixing alloy component powders with high melting point and high specific gravity and titanium powder in a certain proportion on a mixer for a certain period of time. After feeding, the evenly mixed bimetallic or polymetallic powder is prepared into an alloy bag, the alloy bag is added to the base material, the electrode block is pressed, the electrode is assembled and welded, and then smelted in a vacuum consumable electric arc furnace for 2 to 3 times. Finally, a homogeneous titanium alloy ingot is prepared. The invention has simple preparation process, low cost and convenient production organization, can greatly improve the efficiency of industrial production of this type of titanium alloy ingot, and is suitable for various binary system or multi-component titanium alloy ingots containing high melting point and high specificity recombinant elements. preparation.

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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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
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