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Distributing method of titanium alloy with high niobium content

A titanium alloy and cloth technology, applied in the field of titanium alloy material processing, can solve the problems of high cost and low efficiency, and achieve the effect of reducing raw material cost, improving production efficiency and low raw material cost

Inactive Publication Date: 2018-05-18
西安赛特思迈钛业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for distributing titanium alloys with high niobium content, so as to solve the problems of low efficiency and high cost of existing distributing methods

Method used

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  • Distributing method of titanium alloy with high niobium content

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Embodiment 1

[0022] Use the present invention to distribute Ti-25Nb-25Zr titanium alloy: place the electrode blocks with a single weight of 70kg on the welding platform in sequence, weigh 17.5kg of niobium bars, the thickness of the niobium bars is 3mm, the length is 275mm, and the width is 15mm. Wipe the surface of the niobium bar with ethanol, and then spread the clean niobium bar 3 on the upper surface of the electrode block; then use plasma welding technology to weld the niobium bar, the welding current is 500A, the voltage is 20V, and the number of welding points 5 in the length direction is 3, and the width 1 direction, use argon protection, argon protection time for a single welding spot is 40s, argon flow rate is 4-6L / min, finally, place the same number of electrode blocks on the upper part of the welded niobium bar, and weld them with plasma welding technology , Lower electrode block, welding current 480A, voltage 20V, protection time 60s, argon gas flow 4-6L / min, finally, put the ...

Embodiment 2

[0024] Use the present invention to distribute Ti-13Nb-13Zr titanium alloy: place the electrode blocks with a unit weight of 70kg on the welding platform in sequence, weigh 9.1kg of niobium bars, the thickness of the niobium bars is 3mm, the length is 275mm, and the width is 15mm. Wipe the surface of the niobium bar with ethanol, and then spread the clean niobium bar 4 on the upper surface of the electrode block; then use plasma welding technology to weld the niobium bar, the welding current is 500A, the voltage is 20V, and the number of welding spots 5 in the length direction is 3, and the width 1 direction, protected by an argon protective cover, the argon protection time of a single welding spot is 40s, the argon flow rate is 4-6L / min, finally, the same number of electrode blocks are placed on the upper part of the welded niobium bar, and the plasma welding technology Weld the upper and lower electrode blocks, the welding current is 480A, the voltage is 20V, the protection t...

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Abstract

The invention discloses a distributing method of titanium alloy with high niobium content. Pressed electrode blocks are placed on a welding platform, and weighed niobium strips are paved on the uppersurface of the electrode block; welding spots are bestrewed in the length and width directions of the niobium strips using plasma welding, and the adjacent niobium strips are connected with each other; and the electrode blocks with the same number with the niobium strips are put on the upper portion of the welded niobium strips, and the upper and lower electrode blocks are welded into a whole. Niobium bars are replaced by the niobium strips, and the niobium strips are arranged on the center position of self consumable electrode. When melting, niobium with a high melting point can be melted completely and flow by the high temperature of a center part. At the same time, the niobium strips are welded into a whole, blocks are not prone to falling during melting, and the local accumulation of the non melted niobium blocks is avoided. Niobium powder is burned into the niobium strips, and the cost of raw material is low. Without the need for designing the matching mould separately, the generality is strong. The cost of the raw material is reduced, the production efficiency is improved, and the requirement of large-scale and mass production is met.

Description

【Technical field】 [0001] The invention belongs to the field of titanium alloy material processing, and in particular relates to a method for distributing titanium alloy with high niobium content. 【Background technique】 [0002] Niobium is non-toxic and harmless to the human body. Adding titanium alloy can effectively reduce the elastic modulus and improve the corrosion resistance of the material. Therefore, it is widely used in the field of biomedicine, especially for the manufacture of orthodontic brackets. As an alloying element, the addition ratio of niobium in titanium alloy is generally 10%-40%. Niobium has a high melting point and is a refractory metal, and its density is much higher than that of the matrix titanium. In the vacuum consumable melting process, the high melting point Niobium elements are easy to accumulate or sink locally, resulting in segregation of ingots. For alloys with content less than 20%, the composition segregation can be improved by adding niob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C14/00
CPCC22C1/02C22C14/00
Inventor 杨欢王德友潘龙杨晓康
Owner 西安赛特思迈钛业有限公司
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