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Preparation process of TB9 titanium alloy wire with rectangular section

A technology of rectangular section and preparation process, applied in the field of titanium alloy processing, can solve the problems of large heat capacity, large surface affinity, scratched surface, etc., and achieve the effect of broad application prospects.

Active Publication Date: 2013-10-09
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high surface affinity, large deformation heat, and large heat capacity of titanium alloy wire, it is difficult to solve the problem of lubrication after heating. surface crack
At present, there are no related products and standards for special-shaped cross-sections including rectangular cross-section titanium alloy wires in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The composition of TB9 titanium alloy is: Al: 3-4%, V: 7.5-8.5%, Cr: 5.5-6.5%, Mo: 3.5-4.5%, Zr: 3.5-4.5%, and the balance is Ti.

[0018] The electrodes were prepared according to the above components, and the TB9 titanium alloy ingot was prepared by vacuum self-consumption melting. The composition of the ingot is shown in Table 1.

[0019] Table 1. Analysis results of chemical composition of upper, middle and lower parts of TB9 titanium alloy ingot

[0020]

[0021] TB9 titanium alloy rods and wires were prepared by forging and hot rolling, and TB9 titanium alloy cold-drawn wires were prepared by hot drawing and cold drawing. The specific process is as follows:

[0022] (1) At 1100°C-1150°C, heat for 1.5 hours, adopt free forging process, forge TB9 titanium alloy ingot into a Φ110mm forged rod;

[0023] (2) At 950°C to 1000°C, keep warm for 1 hour, and use hot rolling process to hot-roll the forged bar into a Φ16mm rolled bar; the tensile properties of t...

Embodiment 2

[0033] The composition of TB9 titanium alloy is: Al: 3-4%, V: 7.5-8.5%, Cr: 5.5-6.5%, Mo: 3.5-4.5%, Zr: 3.5-4.5%, and the balance is Ti.

[0034] The electrodes were prepared according to the above components, and the TB9 titanium alloy ingot was prepared by vacuum self-consumption melting. The composition of the ingot is shown in Table 4.

[0035] Table 4. Analysis results of chemical composition of upper, middle and lower parts of TB9 titanium alloy ingot

[0036]

[0037] TB9 titanium alloy rods and wires were prepared by forging and hot rolling, and TB9 titanium alloy cold-drawn wires were prepared by hot drawing and cold drawing. The specific process is as follows:

[0038] (1) At 1100°C-1150°C, heat for 1.5 hours, adopt free forging process, forge TB9 titanium alloy ingot into a Φ110mm forged rod;

[0039] (2) At 950°C to 1000°C, keep warm for 1 hour, and use the hot rolling process to hot-roll the forged bar into a Φ14mm rolled bar; the tensile properties ...

Embodiment 3

[0049]The composition of TB9 titanium alloy is: Al: 3-4%, V: 7.5-8.5%, Cr: 5.5-6.5%, Mo: 3.5-4.5%, Zr: 3.5-4.5%, and the balance is Ti.

[0050] According to the above components, the electrodes were prepared, and the TB9 titanium alloy ingot was prepared by vacuum self-consumption melting. The composition of the ingot is shown in Table 7.

[0051] Table 7. Analysis results of chemical composition of upper, middle and lower parts of TB9 titanium alloy ingot

[0052]

[0053] TB9 titanium alloy rods and wires were prepared by forging and hot rolling, and TB9 titanium alloy cold-drawn wires were prepared by hot drawing and cold drawing. The specific process is as follows:

[0054] (1) At 1100°C to 1150°C, heat for 3 hours, and adopt the free forging process to forge the TB9 titanium alloy ingot into a Φ110mm forged rod;

[0055] (2) At 900°C to 950°C, keep warm for 2 hours, and use hot rolling process to hot-roll the forged bar into a Φ16mm rolled bar; the tensile ...

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Abstract

The invention belongs to the field of processing of titanium alloy, and in particular provides a preparation process of a TB9 titanium alloy wire with a rectangular section, high strength and high toughness as well as a wire and a spring prepared by the process. The process comprises the following steps of: insulating for 1.5-3 hours at 1100-1150 DEG C; adopting a free forging process to forge a TB9 titanium alloy ingot to a TB9 titanium alloy forged rod; insulating for 1-2 hours at 900-1000 DEG C; adopting a hot-rolling process to hot-roll the TB9 titanium alloy forged rod to a TB9 titanium alloy rolled rod; adopting a thermal drawing preparation process at 580-780 DEG C to thermally draw the TB9 titanium alloy rolled rod to a TB9 titanium alloy thermal-drawn wire; and under a beta single phase, adopting a cold drawing process to cold-draw and deform the wire with total deformation of 20-35% under the premise of ensuring 4-10% of deformation of the gate so as to prepare the TB9 titanium alloy cold-drawing wire with the rectangular section. The wire is spirally winded to form the TB9 titanium alloy with the rectangular section.

Description

technical field [0001] The invention belongs to the field of titanium alloy processing, and particularly provides a high-strength, high-toughness TB9 rectangular-section titanium alloy wire preparation process and the wire and spring prepared by the process. Background technique [0002] Metal springs are a type of standard parts widely used in the mechanical field. With the upgrading of equipment manufacturing, higher requirements are put forward for the materials and performance of springs. For example, the volume of springs is required to be as small as possible to adapt to the miniaturization and integration of structures. The weight of the spring is as light as possible to increase the payload of the equipment, and the spring material has high corrosion resistance in the marine environment to increase the service life. The materials used in the existing steel springs are usually cold-drawn, oil-quenched spring steel wires, such as 65Si2MnWA, 3Cr13, 3J1, 50CrVA, and IIa ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04C22C14/00C22C1/02
Inventor 王健景禄路张慧博金伟
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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