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Preparation technology of pure titanium and titanium alloy ultrafine wire

A preparation process and ultra-fine wire technology, which is applied in the field of pure titanium and titanium alloy ultra-fine wire preparation technology, can solve the problems of difficult control of surface treatment and surface cleaning process, inability to guarantee the surface quality of wire materials, and difficulty in realization, etc. The effect of good quality, high dimensional accuracy and simple operation

Active Publication Date: 2019-10-11
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to prepare filaments with diameters between 0.1mm and 1mm and ultra-fine filaments with diameters below 0.1mm through the above-mentioned process and equipment, and it is difficult to control the surface treatment and surface cleaning process, resulting in the surface quality of the filaments. Can not guarantee

Method used

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  • Preparation technology of pure titanium and titanium alloy ultrafine wire
  • Preparation technology of pure titanium and titanium alloy ultrafine wire
  • Preparation technology of pure titanium and titanium alloy ultrafine wire

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0025] This embodiment provides a preparation process of pure titanium and titanium alloy ultra-fine wire, comprising the following steps:

[0026] (1) Room temperature drawing process: the Pure Ti wire billet ( figure 1 The microstructure of the TA1 pure Ti wire base material is given) Each drawing is carried out through a wire drawing die, the drawing speed is controlled at 10m / min, the deformation of a single die is 7%, and graphite milk is used as the drawing process. Lubricant, the graphite milk is industrial drawing graphite milk, its main components include graphite with a content of about 20-25% and a particle size of 1-3 μm; after 20 times of drawing, the cumulative deformation reaches 80%, and the obtained As drawn TA1 ultra-fine wire, the tensile yield strength can reach 900MPa, the tensile strength can reach 1000MPa, and the elongation can reach 2%; figure 2 and image 3 The microstructure and surface morphology of the as-drawn TA1 ultra-fine wire are provide...

Embodiment 2

[0029] This embodiment provides a preparation process of pure titanium and titanium alloy ultra-fine wire, comprising the following steps:

[0030] (1) will The TA1 pure Ti wire billet was drawn through 7 wire drawing dies for the first round, the drawing speed was controlled at 15m / min, the deformation of a single die was 10%, and T-RS-2A type modulation lubricating oil was used as the drawing process. Lubricant; cumulative deformation reaches 52% after 7 die drawing;

[0031] (2) Perform the first intermediate annealing treatment on the wire after the first round of drawing and deformation, and control the vacuum degree to 1×10 - 3 Pa, the annealing temperature is 550±5°C, and the annealing time is 20min;

[0032] (3) Repeat steps (1) and (2) 10 times for the wire after the first intermediate annealing, and finally obtain TA1 ultra-fine wire. in, The tensile yield strength of the drawn TA1 ultra-fine wire can reach 850MPa, the tensile strength can reach 950MPa, and ...

Embodiment 3

[0034] This embodiment provides a preparation process of pure titanium and titanium alloy ultra-fine wire, comprising the following steps:

[0035] (1) will The pure Ti wire blank is drawn in the first round through 3 wire drawing dies, the drawing speed is controlled at 20m / min, the deformation of a single die is 15%, and graphite milk is used as a lubricant in the drawing process, and the graphite milk is Brushed graphite milk for industrial use, its main components include graphite with a content of about 20-25% and a particle size of 1-3μm; the accumulated deformation reaches 38% after being drawn by 3 dies;

[0036] (2) Perform the first intermediate annealing treatment on the wire after the first round of drawing and deformation, and control the vacuum degree to 1×10 - 3 Pa, the annealing temperature is 620±5°C, and the annealing time is 15min;

[0037] (3) Repeat steps (1) and (2) 16 times for the wire after the first intermediate annealing, and finally obtain TA1...

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Abstract

The invention provides a pure titanium or titanium alloy ultrafine wire preparation technology. The pure titanium or titanium alloy ultrafine wire preparation technology comprises the following stepsof (1) carrying out the first round of drawing on pure Ti or Ti alloy wire blanks with one to twenty wire drawing dies, controlling the drawing speed to range from 10 meters per minute to 40 meters per minute and the deformation amount of one single drawing die to range from 5% to 15%, and adopting aquadag or tempered lubricating oil as a lubricant during drawing; carrying out the step (2) and thestep (3) when the cumulative deformation is equal to or smaller than 60%; and completing the step (2) to obtain the pure titanium or titanium alloy ultrafine wires with the diameters ranging from 0.03 millimeter to 0.07 millimeter when the cumulative deformation is larger than 60%; (2) carrying out the first time of intermediate annealing treatment on the wire materials subjected to drawing deformation, and controlling annealing conditions; and (3) returning the wire materials subjected to the first time of intermediate annealing to the step (1) till the pure titanium or titanium alloy ultrafine wires with the diameters ranging from 0.03 millimeter to 0.07 millimeter are obtained.

Description

technical field [0001] The invention belongs to the technical field of metal wire processing, and in particular relates to a preparation process of pure titanium and titanium alloy superfine wires. Background technique [0002] Titanium (Ti) and titanium alloys have a series of excellent characteristics such as high specific strength, good corrosion resistance, good biocompatibility, non-magnetic, and low impedance to ultrasonic waves. In view of the above characteristics, titanium and titanium alloys are widely used in aerospace, shipbuilding, automobile industry, biomedical, petrochemical, construction and other fields. Moreover, the application of titanium and titanium alloys in the form of wires is becoming more and more extensive, such as rivets, springs, filter screens woven with titanium wires, surgical sutures and binding wires, and the like. At present, most of the titanium and titanium alloy wires are prepared by the processes disclosed in patents CN101716715B, CN...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C1/02B21C1/12B21C9/00C22F1/18
Inventor 秦高梧任玉平王利卿李松
Owner NORTHEASTERN UNIV LIAONING
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