Do you know the drawing process of titanium rods?

TC4 titanium alloy has excellent comprehensive properties, and the output accounts for more than 50% of the entire titanium alloy products, and more than 80% of the total amount of titanium alloy products is used in the aerospace industry. It is mainly used as load-bearing components of aircraft, which accounts for approximately the amount of titanium alloy used for load-bearing components 70% to 80% of the total. At present, some countries in the world have mature technologies for preparing large-scale titanium alloy materials and have formulated corresponding specifications. For example, the thickness of Ti-6Al-4V (TC4) titanium alloy sheets in the American Standard AMS 4911L can reach 100mm. However, due to the limitations of the preparation process and the level of use, the preparation of high-performance large-size TC4 titanium alloy thick plates (thickness greater than 40mm and width greater than 2000mm) in China still faces many challenges.

As the thickness and width of the TC4 titanium alloy sheet increase, the difficulty of controlling the uniformity of the structure and maintaining its strong plastic matching will also increase. The use of suitable hot working methods is effective for preparing large-size TC4 titanium alloy thick plates. way. The researchers used the thermal processing map obtained by the thermal simulation test as a reference to explore the deformation amount, rolling temperature and other process parameters, and successfully prepared a large-size TC4 with good plate shape and uniform structure on a 2800mm four-high hot rolling mill. Titanium alloy thick plate.

The TC4 titanium alloy ingot used in the experiment was smelted by vacuum consumable arc three times, and the mass was 5t. After peeling the ingots, samples were taken at the upper, middle, and lower parts of the ingot and analyzed for composition. From the analysis results, it can be seen that the main elements Al, V and the impurity elements Fe and O are evenly distributed on the upper, middle, and lower parts of the ingot without segregation. Fully meet the requirements of preparing large-size TC4 titanium alloy thick plates.
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