Process for manufacturing high-precision titanium and titanium alloy tube

A technology of titanium alloy tube and preparation process, which is applied in the field of titanium and titanium alloy processing, can solve the problems that the surface precision and roughness of titanium and titanium alloy tube cannot realize mirror surface, etc., and achieve low processing cost, high yield rate and excellent processing technology simple effect

Inactive Publication Date: 2012-11-07
BAOJI XINZE TITANIUM NICKEL
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Problems solved by technology

[0003] Technical problem solved by the present invention: provide a high-precision titanium or titanium alloy tube preparation process, which solves the problem that the surface precision and roughness of titanium and titanium alloy tubes cannot achieve a mirror surface, and the average surface roughness of titanium and titanium alloy tubes can reach 0.02μm-0.05μm or so, and the oxide film formed on the surface can improve the corrosion resistance of the pipe, laying a good foundation for the widespread popularization of titanium and titanium alloy pipes in medical equipment, cultural and sporting goods and decorative materials

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  • Process for manufacturing high-precision titanium and titanium alloy tube

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Embodiment Construction

[0030] An embodiment of the present invention is described below.

[0031] The high-precision titanium or titanium alloy tube preparation process consists of the following steps:

[0032] 1) Material selection: Industrial pure titanium sponge or titanium alloy is used as raw material. In the initial stage of production of high-precision titanium and titanium alloy tubes, strict requirements must be placed on the ingredients first. Considering that this material involves medical equipment and human body parts, industrial pure titanium sponge (ELI) is preferred to ensure the internal quality of the mirror surface material and the quality of the metal. The gap between ions and the safety of non-toxic and harmless to the human body.

[0033] 2) Smelting: In order to ensure the metallographic and physical and chemical properties of the raw materials during the smelting process, three or more ingots must be used for smelting, that is, two secondary ingot smelting are done during sm...

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Abstract

The invention provides a process for manufacturing a high-precision titanium or titanium alloy tube. The process comprises the following steps: sorting, smelting, forging, rod processing, rolling a tube, mechanical grinding, electrolysis compound polishing, and the like. By using the process, the problem that a mirror surface cannot be realized because of the surface precision and roughness of the titanium and titanium alloy tube is solved, the surface average roughness of the titanium and titanium alloy tube can approximate 0.03 mu m, the corrosion resistance of the tube can be increased with the help of an oxidation film formed on the surface, and an excellent foundation is established for widely applying the titanium and titanium alloy tube to medical apparatus and instruments, cultural and sports products and decorative materials.

Description

technical field [0001] The invention belongs to the technical field of titanium and titanium alloy processing, and in particular relates to a high-precision titanium or titanium alloy tube preparation process. Background technique [0002] There are currently three different technologies for the surface treatment of titanium and titanium alloy pipes: one is annealing and pickling, heat treatment and annealing after cold rolling, and then pickling with hydrofluoric acid and nitric acid to make the surface lose its silvery white luster; the other is vacuum annealing , vacuum annealing after cold rolling, and after straightening, the surface has a metallic luster; the third is pattern extrusion, on the basis of annealing and pickling, using mechanical extrusion to form various Concave and convex patterns. At present, the so-called mirror surface processing includes polishing and electrolytic polishing. Polishing uses sandpaper on the polishing wheel to form a mirror surface on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
Inventor 梁均军
Owner BAOJI XINZE TITANIUM NICKEL
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