Short-process manufacturing method for titanium and titanium alloy pipes

A titanium alloy and short-process technology, which is applied in the field of titanium alloy pipe preparation, can solve the problems of destroying the as-cast structure, etc., and achieve the effects of increasing deformation, high material utilization rate, and short processing cycle
CN112775370AActive Publication Date: 2021-05-11江苏宇钛新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
江苏宇钛新材料有限公司
Publication Date
2021-05-11

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Abstract

The invention discloses a short-process manufacturing method for titanium and titanium alloy pipes. The method comprises the processes of pipe blank heating, multiple-time radial forging, double annealing and machining, so that the titanium alloy pipes are obtained. The pipe blank heating temperature is 80 DEG C-100 DEG C higher than the titanium alloy beta phase transformation point, and the heat preservation time is larger than or equal to 2h. The multiple-time radial forging process comprises three times of radial forging, wherein the hammering speed of the first time of radial forging is 1000-2000 times per minute, and the pipe blank deformation is controlled to be 40% to 80%; the hammering speed of the second time of radial forging is 2000-3000 times per minute, and the pipe blank deformation is controlled to be 30% to 60%; and the hammering speed of the third time of radial forging is 50-100 times per minute, and the pipe blank deformation is controlled to be 30% to 40%. The manufacturing method is short in processing period and low in cost, the titanium alloy pipes with equiaxial or binary structures and excellent mechanical properties can be directly obtained, and the material utilization rate is high.
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Description

technical field

[0001] The invention relates to the technical field of preparation of titanium alloy pipes, in particular to a short-flow preparation method for titanium and titanium alloy pipes. Background technique

[0002] Titanium alloy seamless pipe is a long pipe made of titanium alloy material with a hollow section and no seams around it. It was originally mainly used to make aircraft engine compressor parts and structural parts of rockets, missiles and high-speed aircraft. Since the mid-1960s, it has been gradually applied to general industrial manufacturing fields such as electrodes in the electrolysis industry, condensers in power stations, heaters in petroleum refining and seawater desalination, and environmental pollution control devices. Therefore, titanium alloy seamless pipes have broad application prospects.

[0003] At present, the traditional process of manufacturing titanium alloy seamless pipe first adopts hot forging process to refine the structure of t...

Claims

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