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Manufacturing method for consumable electrode for TC26 titanium alloy smelting

A technology for consumable electrodes and titanium alloys, applied in the field of titanium material processing, can solve problems such as cost increase, and achieve the effects of good welding, increased connection strength, and not easy to fall out.

Inactive Publication Date: 2018-06-01
西安赛特思迈钛业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, Nb rods are processed materials, which are obtained from Nb rods through remelting, thermal processing, machining and other processes, and their cost will increase greatly

Method used

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  • Manufacturing method for consumable electrode for TC26 titanium alloy smelting
  • Manufacturing method for consumable electrode for TC26 titanium alloy smelting

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Embodiment

[0030] Example: The preparation method of the Φ380-600Kg self-consumable smelting electrode block of TC26 (Ti-13Nb-13Zr) alloy. The raw materials are 0-grade sponge titanium, industrial-grade HZr-1 sponge zirconium, and Nb bars with the brand name TNb1. The ratio is according to Ti-13.2%Nb-13.0%Zr (wt%). A shoulder-shaped pressing die is used, and 1 / 2 of the sponge titanium and sponge zirconium mixed according to the alloy composition ratio are firstly pressed to obtain a 1 / 2 electrode block with grooves. Repeat the operation to obtain another 1 / 2 electrode block. Put 4 Nb strips into the 4 grooves and weld them together. Finally, a single consumable electrode block of TC26 titanium alloy of Φ160-20Kg is tailor-welded. A total of 30 electrode blocks were prepared and welded into 4 consumable electrodes. Subsequent vacuum self-consumption smelting three times to obtain Φ380-600Kg ingots. After measurement, the composition of the ingot is uniform, and no microstructure and c...

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Abstract

The invention discloses a manufacturing method for a consumable electrode for TC26 titanium alloy smelting. The manufacturing method comprises the following steps of: taking sponge titanium, sponge zirconium and a Nb strip as raw materials; batching and weighing according to nominal components of a TC26 titanium alloy, adopting a shoulder convex type pressing mould, taking one half of the mixed sponge titanium and sponge zirconium raw materials to press, thereby obtaining a 1 / 2 electrode block with a groove; continuously pressing the other 1 / 2 electrode block with the groove, separately welding the Nb strip into the groove of the 1 / 2 electrode block with the groove; jointing and welding two 1 / 2 electrode blocks into a consumable electrode block, refining a plurality of consumable electrodeblocks in this way, and welding the consumable electrode blocks into the consumable electrode for the TC26 titanium alloy smelting. The manufacturing method takes the high-purity Nb strip as the rawmaterial, selects Nb rods of different specifications as raw materials, is simple to operate, reduces production cost, also can achieve good welding for a mixture of the sponge titanium and the spongezirconium, and is beneficial for realizing a titanium alloy cast ingot with good uniformity.

Description

【Technical field】 [0001] The invention belongs to the technical field of titanium material processing, and in particular relates to a preparation method of a consumable electrode for smelting TC26 titanium alloy. 【Background technique】 [0002] TC26 (Ti-13Nb-13Zr) is a new type of medical titanium alloy, which belongs to the Ti-Nb-Zr system. It is made of non-toxic biometal elements and has a good application prospect. [0003] The smelting method of titanium alloy usually adopts the vacuum consumable remelting method, and the preparation method of the consumable electrode is the key factor determining the quality of the ingot. The raw materials for TC26 smelting include sponge titanium and sponge zirconium, and there are different options for adding niobium. Generally, there are two methods: directly use niobium bar or niobium bar, or use turning chips of intermediate alloy NbTi alloy. In the case of high Nb% in the alloy, if the intermediate alloy turnings are used, the ...

Claims

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Application Information

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IPC IPC(8): C22C1/02C22C14/00C22B9/16B22F5/00
CPCC22C1/02B22F5/00C22B9/16C22C14/00
Inventor 毛江虹罗斌莉杨晓康杨宏进崔文俊刘煦
Owner 西安赛特思迈钛业有限公司
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