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Medical high-strength titanium alloy wire and preparation method thereof

A technology of titanium alloy and scope, applied in the field of component control and preparation of Ti-6Al-4V titanium alloy wire, can solve the problem of low plasticity, achieve high yield, reduce processing cost, and excellent plasticity

Inactive Publication Date: 2012-05-30
西安赛特金属材料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention "a medical high-strength titanium alloy wire and its preparation method" is to provide a Ti-6Al-4V titanium alloy wire and a preparation method of the material to solve the problem of extremely low plasticity when the material meets high strength, The wire not only has high strength, but also has excellent cold forming properties at room temperature

Method used

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  • Medical high-strength titanium alloy wire and preparation method thereof
  • Medical high-strength titanium alloy wire and preparation method thereof
  • Medical high-strength titanium alloy wire and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Using grade 1 sponge titanium, aluminum vanadium 85 and aluminum beans as raw materials, the Ti-6Al-4V composition (wt%) is proportioned according to Al 6.2% and V 4.1%, after mixing, it is pressed into an electrode block, and then The electrode block is welded into an electrode for smelting by plasma welding, and it is smelted three times in a vacuum consumable arc melting furnace to form an ingot. The main alloying elements, oxygen and iron of the titanium alloy three ingots are: Al 6.1%, V 4.2 %, O 0.13%, Fe 0.08%. Use a hydraulic press or an air hammer to forge the ingot at 1050-1150°C to form a □220mm upsetting and drawing forging billet, and then turn it into a Φ160mm round billet after being upset once. Diameter forging is then carried out at 950°C to form a square billet of □70mm. The billet is reheated after grinding, the heating temperature is 900°C, and the temperature-controlled rolling is carried out. During the rolling process, a cooling device is install...

Embodiment 2

[0036] Using grade 1 sponge titanium, aluminum vanadium 85 and aluminum beans as raw materials, the Ti-6Al-4V composition (wt%) is proportioned according to Al 6.2% and V 4.5%, after mixing, it is pressed into an electrode block, and then The electrode block is welded into an electrode for smelting by plasma welding, and it is smelted three times in a vacuum consumable arc melting furnace to form an ingot. The weight percentages of the main alloying elements, oxygen and iron of the titanium alloy three ingots are: Al 6.3%, V 4.5 %, O 0.15%, Fe 0.10%. Use a hydraulic press or an air hammer to forge the ingot at 1050-1150°C to form a □220mm upsetting forging billet, and then turn it into a Φ160mm round billet after two times of upsetting. Diameter forging is then carried out at 950°C to form a square billet of □70mm. The billet is reheated after grinding, the heating temperature is 890°C, and the temperature-controlled rolling is carried out. During the rolling process, a cooli...

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Abstract

The invention provides a medical high-strength titanium alloy wire and a preparation method thereof and relates to component control of a Ti-6Al-4V titanium alloy wire having high strength and good cold molding characteristic and a preparation method thereof. The component control of the Ti-6Al-4V titanium alloy wire is as follows: based on weight percent, 6.0%-6.3% of main element Al, 4.2%-4.5% of V, 0.13-0.15% of interstitial element O and 0.08%-0.12% of Fe. The alloy obtained according to the component control is subjected to smelting, cogging and forging, multiple heating numbers of upsetting and forging, large-deformation rolling, temperature-control hot drawing, stress relief annealing, electric heating straightening and grinding processes so as to prepare the high-strength titanium alloy wire. The Ti-6Al-4V titanium alloy can obtain high strength (tensile strength of more than or equal to 1200Mpa and elongation A of more than or equal to 8%) and excellent plasticity, and can be applied to a medical Kirschner wire fixing system.

Description

technical field [0001] The invention relates to component control and preparation method of Ti-6Al-4V titanium alloy wire with high strength and excellent cold forming properties. Background technique [0002] Titanium and titanium alloys have been widely used in surgical implants in recent years due to their excellent comprehensive properties. Among them, Ti-6Al-4V titanium alloy has high strength, high toughness and other mechanical properties, as well as excellent biological and mechanical compatibility, and is an ideal surgical implant material. Its rods and plates are mainly used in bone plates and fixation screws for surgical trauma, which are very effective for the fixation of fracture fragments, but for fractures with low stress such as short fractures or avulsion fractures, Kirschner wires made of fine wires are generally used Instead of bone plates and fixation screws, Kirschner wires can not only effectively fix fracture fragments, but also are simple to operate ...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22F1/18
Inventor 樊亚军曹继敏陈志宏杨华斌罗斌莉罗乾伟林劭华张战英
Owner 西安赛特金属材料开发有限公司
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