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Formala and technology of high performance titanium alloy pipe

A titanium alloy tube and formula technology, applied in rigid tubes, tubes, tubes/pipe joints/fittings, etc., can solve the problems of complex formula and process, and achieve the effect of simple formula, low energy consumption and reliable performance

Inactive Publication Date: 2006-01-11
黄忠伟
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  • Summary
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AI Technical Summary

Problems solved by technology

[0009] In summary, the prior art still has complex processes and complex formulas.

Method used

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Comparison scheme
Effect test

Embodiment Construction

[0019] The formulation of titanium alloy and the method of manufacturing titanium and titanium alloy pipe by cold working. It is a process different from hot rolling, and can ensure the simplification of the processing process and the performance of the finished product.

[0020] The purpose of the present invention is achieved like this:

[0021] The formulas of titanium alloys and pipes are 9 types:

[0022] 1 2 3 4 5 6 7 8 9

[0023] Al, 2.5 3 3.5 2.5 3 3.5 2.5 3 3.5

[0024] V, 3.0 2.5 2.0 2.0 2.5 3.0 2.5 3.0 2.0

[0025] Ti 94.5 94.5 94.5 95.5 94.5 93.2 94.72 93.8 94.34

[0026] Fe 0 0 0 0 0 0.25 0.25 0.15 0.15

[0027] N 0 0 0 0 0 0.05 0.03 0.05 0.01

[0028] Of course, there are still traces of inexhaustible impurities in the alloy.

[0029] The tensile strength of No. 1-3 samples is 700-800Mpa, the residual elongation stress is ≥ 480Mpa, and the elongation of No. 7-9 samples is ≥ 25%. Embodiment of the method for manufacturing titanium and titanium alloy...

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Abstract

A method for preparing the Ti-alloy tube from A (2.5-3.5 wt.%), V (2.0-3.0) and Ti (rest) through cold machining to become tube, heat treating at 350-600 deg.C for 0.5-2 hr, annealing, fine rolling and annealing at 300-400 deg.C for 0.5-1 hr. Its advantages are high precision, and high elastic extreme strength.

Description

technical field [0001] The invention relates to a formula and a processing technology of a high-performance titanium alloy pipe. Background technique [0002] Titanium alloy has excellent corrosion resistance and mechanical properties, but its processing requires high technology and high processing cost. Therefore, this deficiency is overcome by formula improvement and process innovation. [0003] Chinese patent 87105786 relates to high-strength and high-toughness titanium-based alloys, containing (weight percent) 3-7% Mo, 3-7% V, 1.75-4.0% Al, ≤6% Cr, ≤2.5% Zr, ≤2.5% Fe , the balance is ≤0.2% of titanium dioxide, the sum of Mo and V is 8-12%, and the sum of Cr and Fe is ≤6%. Titanium alloy forged rods with Mo, V, Cr, and Al contents of 5%, 5%, 2%, and 3% respectively, through proper heat treatment, the tensile strength δ can reach 1224MPa, which can be used as aerospace or aerospace high-strength structures, ultra-high-speed centrifuge rotor, e...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22F1/18F16L9/02
Inventor 黄忠伟
Owner 黄忠伟
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