A kind of preparation method of ta15 titanium alloy thin strip

A titanium alloy and strip rolling technology, which is applied in metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of high cost, complicated process, low yield rate, etc., and achieve high precision of thickness dimension and surface quality Good, large rolling effect
CN113714286BActive Publication Date: 2022-07-05NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Publication Date
2022-07-05

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Abstract

The invention discloses a preparation method of a TA15 titanium alloy thin strip. The method comprises: first, single-piece reversible hot rolling in the first rolling process; second, butt welding; third, after alkali pickling and slitting treatment Vacuum annealing heat treatment; 4. Reversible strip rolling in the second rolling process; 5. Vacuum annealing heat treatment after cleaning and slitting treatment; 6. Reversible strip rolling in the third rolling process; 7. Cleaning and slitting Slitting treatment followed by vacuum annealing heat treatment; eighth, the fourth rolling process reversible strip rolling; ninth, cleaning and slitting treatment; tenth, annealing treatment to obtain TA15 titanium alloy thin strip. The invention adopts a four-high reversible hot rolling mill and a Sendzimir twenty-high cold rolling mill, combined with laser butt welding of plates, and performs one hot rolling process and three cold rolling rolling processes in sequence, thereby improving the rolling efficiency. Improving the yield and reducing the cost reduces the number of rolling passes, and ensures the thickness accuracy of the TA15 titanium alloy thin strip with a thickness of 0.3mm to 0.6mm.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of titanium alloy profiles, in particular to a preparation method of a TA15 titanium alloy thin strip. Background technique

[0002] With the continuous progress of human aviation, the requirements for aviation aircraft are getting higher and higher. Aircraft usually have harsh service environments and work in extreme conditions such as ultra-high temperature, ultra-low temperature, vacuum, high stress and high corrosion. This not only requires the aircraft to have a reliable structural design, but also has a significant impact on the strength, hardness, high temperature and corrosion resistance of the material. Ability has high requirements.

[0003] TA15 titanium alloy has high specific strength and high temperature strength at the service temperature of 450 ~ 500 ℃, and its comprehensive performance is slightly higher than that of TC4 titanium alloy. Due to the high strength and poor plas...

Claims

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