Smelting recovery method for lath-like residual titanium

A recovery method and technology of titanium residues, which are applied in the field of titanium material processing, can solve the problems of difficult control of impurity elements, low utilization rate of titanium residues, high recycling costs, etc., shorten the manufacturing process flow, improve the utilization rate of titanium residues, Effect of production cost reduction

Inactive Publication Date: 2016-11-16
LUOYANG SUNRUI TI PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned problems of low utilization rate of titanium residues, high recycling costs, and difficult control of impurity elements in the prior art, the present invention provides a method for smelting and recycling lath-shaped titanium residues

Method used

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  • Smelting recovery method for lath-like residual titanium
  • Smelting recovery method for lath-like residual titanium
  • Smelting recovery method for lath-like residual titanium

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1: the recovery of TA1 grade lath-shaped titanium residue

[0030] 1) Use a hydraulic shearing machine to cut the TA1 lath-shaped titanium residue to length. After cutting, the width specification is 20~250mm and the length specification is 200~1500mm.

[0031] 2) Use the alkaline pickling process to remove impurities such as oxide skin and oil stains on the surface of the TA1 strip-shaped titanium residue, and dry it to obtain a clean and dry titanium residue.

[0032] 3) Use the concentric circular fixture to assist the tooling to distribute, spot weld and bind the electrodes on the TA1 strip-shaped titanium residue. The inner diameter of the circular fixture is 380mm. The shorter slats shall be supplemented to 1500mm, and the fabric shall be uniform and dense. After the cloth is finished, use a 0.8mm thick and 15mm wide pure titanium narrow strip to fasten and bind the cylindrical electrode in the circumferential direction. The lap length of the head and ...

Embodiment 2

[0038] Embodiment 2: the recovery of TC4 brand lath titanium residue

[0039] 1) Use a hydraulic shearing machine to cut the TC4 lath-shaped titanium residue to length. After cutting, the width specification is 50~200mm and the length specification is 500~1500mm.

[0040] 2) Use the shot blasting pickling process to remove impurities such as oxide skin and oil stains on the surface of the TC4 strip-shaped titanium residue, and dry it to obtain a clean and dry titanium residue.

[0041] 3) Use concentric ring-shaped clamps to assist tooling to distribute, spot-weld and bind electrodes for TC4 strip-shaped titanium residues. The inner diameter of the ring-shaped clamps is 380mm. During the fabric distribution process, use the method of argon arc welding spot welding to reduce the size of the shorter slats to 1500mm, and the fabric should be even and dense. After the cloth is finished, use a 1.0mm thick and 20mm wide pure titanium narrow strip to fasten and bind the cylindrical el...

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Abstract

The invention relates to a smelting recovery method for lath-like residual titanium. The smelting recovery method includes the steps of residual titanium sizing, surface treatment, distribution and electrode binding, VAR smelting and finished titanium ingot treatment. The procedures of residual titanium crushing, mixing and electrode pressing are omitted, the manufacturing process flow is short, and operation is simple. The utilization rate of the residual titanium is high, specifically, 100% adding and recovery of the residual titanium can be achieved due to the fact that electrode pressing is not needed, the residual titanium adding proportion is increased to 100% from 30%, and the utilization rate of the residual titanium is greatly increased. The production cost is low, and specifically, the production cost is effectively lowered by shortening the manufacturing process flow and increasing the utilization rate of the residual titanium. The smelting recovery quality is good, specifically, due to the fact that the residual titanium crushing procedure is omitted, increment of impurity elements such as Fe, O and N in the crushing process can be effectively reduced, and the quality of titanium ingots obtained through smelting recovery is improved.

Description

technical field [0001] The invention relates to the technical field of titanium material processing, in particular to a method for smelting and recycling lath-shaped titanium residues. Background technique [0002] Titanium has the advantages of light weight, corrosion resistance, non-magnetic and non-toxic, and is an ideal material in the fields of petroleum, chemical industry, metallurgy, electric power, ships, sports, etc. However, the high cost of raw materials for titanium manufacturing has become the main factor limiting its further wide application. one of the reasons. The smelting and recovery of titanium and titanium alloy residues is one of the necessary ways to reduce the production cost of titanium materials. The existing technology mainly breaks the lath or block waste into chips and small particles, mixes them with sponge titanium, and then Pressed into electrode blocks, then welded, and smelted in a vacuum consumable arc furnace (VAR) to obtain finished titan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/12C22B7/00
CPCC22B7/003C22B34/1295Y02P10/20
Inventor 李渤渤张强李洋刘茵琪王非
Owner LUOYANG SUNRUI TI PRECISION CASTING
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