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Titanium fiber production process

A production process and technology of titanium fiber, applied in the field of non-ferrous metal processing, can solve the problems of uneven surface finish, high yield of titanium fiber wire, low yield of finished product, etc., and achieve the effect of great application prospect and great market benefit.

Active Publication Date: 2021-01-22
湖南汇博金属材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this process, the titanium metal cannot be hardened too quickly in the traditional mold drawing process, and the titanium fiber with a diameter of 25-30 μm is forcibly drawn, and the yield is very low.
Moreover, the nitric acid and hydrofluoric acid used in the final pickling are harmful, the surface finish is not uniform, and the aesthetics of the titanium wire is insufficient.
Therefore, there has never been a prior art capable of preparing uniform, beautiful, titanium fiber filaments with a diameter less than 22 μm and high yield.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 1. Select and use 0.5mm titanium wire made of TA1 material as the raw material;

[0063] 2. Copper plating is carried out on the surface of the titanium wire. Use a pretreatment solution with a concentration of 3% nitric acid and hydrofluoric acid mixed acid (nitric acid: hydrofluoric acid = 3:1) to soak and clean the titanium wire for 3 minutes to remove the oxide film on the surface of the titanium wire. . Then use a mixed solution of 50g / L nickel chloride and 10g / L sulfuric acid, use a pure nickel plate on the anode, use a titanium wire as the cathode, and plate nickel for 3 minutes under 6V voltage operation. After pretreatment and pre-nickel plating, use sulfuric acid and copper sulfate solutions of 50g / L copper ions and 1g / L hydrogen ions. The anode is a copper bar, and the titanium wire is used as a cathode. The copper-plated copper layer is covered under the action of a voltage of less than 12V. . Use 680A current and 7m / min speed during copper plating to obta...

Embodiment 2

[0073] 1. Select and use 0.5mm titanium wire made of TA1 material as the raw material;

[0074] 2. Copper plating is carried out on the surface of the titanium wire. Use a pretreatment solution with a concentration of 3% nitric acid and hydrofluoric acid mixed acid (nitric acid: hydrofluoric acid = 3:1) to soak and clean the titanium wire for 3 minutes to remove the oxide film on the surface of the titanium wire. . Then use a mixed solution of 50g / L nickel chloride and 10g / L sulfuric acid, use a pure nickel plate on the anode, use a titanium wire as the cathode, and plate nickel for 3 minutes under 6V voltage operation. After pretreatment and pre-nickel plating, use sulfuric acid and copper sulfate solutions of 50g / L copper ions and 1g / L hydrogen ions. The anode is a copper bar, and the titanium wire is used as a cathode. The copper-plated copper layer is covered under the action of a voltage of less than 12V. . Use 680A current and 7m / min speed during copper plating to obta...

Embodiment 3

[0080] 1. Select and use 0.5mm titanium wire made of TA1 material as the raw material;

[0081] 2. Copper plating is carried out on the surface of the titanium wire. Use a pretreatment solution with a concentration of 3% nitric acid and hydrofluoric acid mixed acid (nitric acid: hydrofluoric acid = 3:1) to soak and clean the titanium wire for 3 minutes to remove the oxide film on the surface of the titanium wire. . Then use a mixed solution of 50g / L nickel chloride and 10g / L sulfuric acid, use a pure nickel plate on the anode, use a titanium wire as the cathode, and plate nickel for 3 minutes under 6V voltage operation. After pretreatment and pre-nickel plating, use sulfuric acid and copper sulfate solutions of 50g / L copper ions and 1g / L hydrogen ions. The anode is a copper bar, and the titanium wire is used as a cathode. The copper-plated copper layer is covered under the action of a voltage of less than 12V. . Use 680A current and 7m / min speed during copper plating to obta...

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Abstract

The invention belongs to the technical field of non-ferrous metal processing, and relates to titanium and titanium alloy wire processing, in particular to a production process for preparing a titaniumfiber bundle smaller than 22 microns through rolling drawing. The production process comprises the following steps: S1, copper coating of a titanium wire: carrying out pretreatment, nickel pre-plating and copper plating on the titanium wire to realize copper coating; S2, bundling: using a copper pipe as a sleeve, bundling the titanium wire coated with the copper, and obtaining a composite wire; S3, drawing: continuously drawing the composite wire into a finished composite wire with the needed diameter through a multi-pass rolling die; S4, fine grain strengthening: performing annealing heat treatment on the composite wire in the drawing process; and S5, directional separation: removing a coated copper layer from the finished composite wire, and then cleaning and drying to obtain a titaniumfiber tow with the diameter of less than 22 microns. According to the preparation process, the titanium metal fiber with the diameter smaller than 22 microns is prepared, so that titanium metal serving as a new metal fiber material has spinnability and has a larger application prospect.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal processing, relates to the processing of titanium and titanium alloy wires, in particular to a production process for preparing titanium fiber bundles smaller than 22 μm by rolling drawing. Background technique [0002] In the prior art, the main processes for preparing titanium wire are peeling, grinding, drawing (lubricated with graphite), oxidation, drawing, alkali pickling, finished product annealing 3 to 4 times, whole plate, vacuum or atmospheric annealing. The disadvantages of this process are: firstly, due to the fast work hardening of titanium metal, the special amount of drawing deformation is small, and the prepared fiber is thick and short; The finish is not high. In addition, the prior art also uses the scraping method to obtain short titanium monofilament fibers; and then uses the traditional mold drawing process produced by stainless steel fibers to prepare titanium fiber...

Claims

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Application Information

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IPC IPC(8): B21C1/04B21C37/04
CPCB21C1/04B21C1/003B21C37/042B21C37/047
Inventor 龚玮龚卫红周荣敏
Owner 湖南汇博金属材料有限责任公司
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