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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

Active Publication Date: 2022-07-05
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent "A Processing Method of Fine Grain Superplastic TA15 Titanium Alloy Sheet" with application number 201410235456.6 discloses a preparation method of TA15 titanium alloy sheet. TA15 titanium alloy plate of 0.5mm~1.4mm, this kind of preparation method is complicated, the yield is low, and the cost is high

Method used

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  • A kind of preparation method of ta15 titanium alloy thin strip
  • A kind of preparation method of ta15 titanium alloy thin strip
  • A kind of preparation method of ta15 titanium alloy thin strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 As shown, this embodiment includes the following steps:

[0036] Step 1. Place the TA15 sheet with a thickness of 2mm, a width of 500mm and a length of 3000mm in a heating furnace, heat and keep it at 930°C for 30min, and then use a four-roll reversible hot rolling mill for the first rolling process. rolling to obtain a first rolling pass TA15 strip; the first rolling pass TA15 strip has a thickness of 1 mm, a width of 500 mm, and a length of 6000 mm; the mass content of iron in the TA15 sheet is 0.12%, and the mass content of oxygen is 0.09%;

[0037] Step 2: Using the laser welding method to perform butt welding on both ends of the 4 first rolling pass TA15 strips obtained in the first step, and grinding and polishing the welds to obtain a first rolling pass TA15 welding strip material;

[0038] Step 3: Alkaline pickling is performed on the first rolling TA15 welded strip obtained in step 2, then a slitting machine is used for slitting and slitting to...

Embodiment 2

[0049] like figure 1 As shown, this embodiment includes the following steps:

[0050] Step 1. Place a TA15 sheet with a thickness of 3mm, a width of 550mm and a length of 4000mm in a heating furnace, heat and keep it at 950°C for 60min, and then use a four-roll reversible hot rolling mill for the first rolling process. rolling to obtain a first rolling pass TA15 strip; the first rolling pass TA15 strip has a thickness of 1.2 mm, a width of 550 mm, and a length of 8000 mm; the mass content of iron in the TA15 sheet is 0.16%, and the mass content of oxygen is 0.08%;

[0051] Step 2: Using the laser welding method to perform butt welding on both ends of the 6 first rolling TA15 strips obtained in step 1, and grinding and polishing the welds to obtain a first rolling TA15 welding strip material;

[0052] Step 3: Alkaline pickling is performed on the first rolling TA15 welded strip obtained in step 2, and then a slitting machine is used for slitting and slitting to remove burrs ...

Embodiment 3

[0063] like figure 1 As shown, this embodiment includes the following steps:

[0064] Step 1. Place the TA15 sheet with a thickness of 2.2mm, a width of 520mm and a length of 3500mm in a heating furnace, heat and keep it at 930°C for 45min, and then use a four-roll reversible hot rolling mill for the first rolling process. Hot rolling to obtain a first rolling pass TA15 strip; the first rolling pass TA15 strip has a thickness of 1.1 mm, a width of 520 mm, and a length of 7000 mm; the mass content of iron in the TA15 sheet is 0.17%, and the mass of oxygen is 0.17%. The content is 0.12%;

[0065] Step 2: Using the laser welding method to perform butt welding on both ends of the 5 first rolling TA15 strips obtained in step 1, and grinding and polishing the welds to obtain 1 first rolling TA15 welding strip material;

[0066] Step 3: Alkaline pickling is performed on the first rolling TA15 welding strip obtained in step 2, and then a slitting machine is used to perform slitting...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/24B21B3/00B21B15/00B21B45/02B21B27/02B21C37/02C22F1/02C22F1/18C21D9/52B23P15/00
CPCB21B1/24B21B3/00B21B15/00B21B15/0007B21B45/0275B21B27/021B21C37/02C22F1/02C22F1/183C21D9/52B23P15/00
Inventor 王国栋薛少博田云飞徐海龙苏艳妮张国霞王成长周立鹏郭学鹏舒滢吴欢
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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