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Preparation technology of TC17 titanium alloy wire

A preparation process and technology of titanium alloy wire, which is applied in the preparation process of non-ferrous metal materials and the field of metal material metallurgy, can solve the problem of no TC17 titanium alloy preparation process and the like

Active Publication Date: 2012-05-16
SHENYANG HANRUIDA TITANIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is no mature wire preparation process for TC17 titanium alloy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The preparation process of titanium alloy wire is.

[0014] (1) Rolling coil: TC17 titanium alloy with qualified chemical composition Φ60mm is selected, rolled into a Φ12mm coil at 930°C in the β-phase region, and the final rolling temperature is controlled above 600°C.

[0015] (2) Grinding: The Φ12mm disk element is firstly ground to handle surface defects before drawing, the second grinding is performed after drawing to Φ10mm peeling treatment, and the third grinding is performed after Φ6mm peeling treatment. To ensure that the surface of the finished product is free from holes, cracks, and inclusions.

[0016] (3) Heat treatment: heat treatment is carried out after each grinding and when the total processing rate reaches 30%. According to the change of wire diameter from thick to thin, the heat treatment temperature is between 780 ° C ± 10 ° C, heat preservation for 2 hours, air cooling , Stress relief annealing is carried out in an electric furnace or a va...

Embodiment 2

[0022] The preparation process of titanium alloy wire is.

[0023] (1) Rolling coil: TC17 titanium alloy 55mm square bar with qualified chemical composition is selected, rolled at 920°C in the β phase region to form a Φ12mm coil, and the final rolling temperature is controlled above 600°C.

[0024] (2) Grinding: The Φ12mm disk element is firstly ground to handle surface defects before drawing, the second grinding is performed after drawing to Φ10mm peeling treatment, and the third grinding is performed after Φ6mm peeling treatment. To ensure that the surface of the finished product is free from holes, cracks, and inclusions.

[0025] (3) Heat treatment: heat treatment is carried out after each grinding and when the total processing rate reaches 30%. The heat treatment temperature is between 770°C±10°C, heat preservation for 2 hours, air cooling, and stress relief annealing in an electric furnace.

[0026] (4) Stretching temperature: when the wire diameter is ≥Φ10mm,...

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Abstract

The invention discloses a preparation technology of a TC17 titanium alloy wire. The preparation technology is characterized by comprising the following steps of: rolling the TC17 titanium alloy into a disk with specification of (Phi)12mm; performing three times of grinding on the (Phi)12mm disk; after the grinding and when the total working rate reaches 30%, performing heat treatment and stress relief annealing in an electric furnace or a vacuum furnace; when the diameter of the wire is greater than or equal to (Phi)10mm, controlling the stretching temperature at 780+ / 20 DEG C; when the diameter of the wire is less than (Phi)10mm, controlling the stretching temperature at 730+ / -20 DEG C; repeatedly performing annealing-stretching-grinding-annealing of the wire after the heat treatment until the diameter of the wire is greater than or equal to (Phi)5.5mm, and performing vacuum heat treatment; before obtaining the finished product and after performing the vacuum heat treatment, removing the lubricant and scale impurity layer on the material surface by use of a round-blade mould with 0-5 degrees of internal and external taper angles according to the diameter of the finished product, stretching to obtain a bright wire with diameter of less than or equal to (Phi)5.0mm, and checking the finished product; and if the finished product is qualified, delivering as the finished product. The preparation technology disclosed by the invention makes up for the shortcoming that the TC17 titanium alloy wire cannot be produced domestically.

Description

technical field [0001] The invention relates to a preparation process of a nonferrous metal material, in particular to a preparation process of a national standard brand of TC17 titanium alloy wire, which belongs to the metallurgical technology of metal materials. Background technique [0002] Titanium alloy is the national standard brand of our country. The similar foreign brand is American Ti-17. The chemical composition is: Al: 4.5-5.5, Sn: 1.6-2.4, Zr: 1.6-2.4, Mo: 3.5-4.5, Cr: 3.5 -4.5, the rest is Ti. [0003] Titanium alloy has the advantages of high tensile strength and creep strength, good fracture toughness, and wide forging temperature, which can meet the needs of damage tolerance design, high structural efficiency, high reliability and low manufacturing cost. my country has started to develop TC17 titanium alloy since the "Seventh Five-Year Plan". The current products are mainly bars, forgings, and slabs, which have been practically applied in various engine fan...

Claims

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Application Information

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IPC IPC(8): B21C37/04C22F1/18
Inventor 祁学瀚祁振武
Owner SHENYANG HANRUIDA TITANIUM
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