Breakthrough progress in titanium rolling technology of Panzhihua Iron and Steel Co., Ltd.

Recently, good news came from the Pangang Group Xichang Steel and Vanadium Co., Ltd., which successfully rolled 10 volumes of titanium plate products by automatic computer control. After inspection, the product quality has reached the user's requirements. This indicates that the rolling technology of titanium products of Panzhihua Iron and Steel Xichang Steel and Vanadium 2050 Hot Rolling Mill has matured day by day, and the rolling level has leapt to the forefront of the domestic industry.  

It is understood that titanium has the title of “third metal”. As an emerging structural material, titanium plate products are widely used in military and medical equipment due to their excellent corrosion resistance, high specific strength and biocompatibility. , aerospace, scientific research and navigation industries. The titanium resources in the Panxi area are extremely rich. In 2009, Panzhihua Iron and Steel produced the first industrial pure titanium coil in southwestern China. In order to play the role of Xichang Steel Vanadium 2050 hot-rolling mill advanced equipment, increase the variety of effective products, and promote the development of Panzhihua Titanium industry, Xichang Steel Vanadium actively carried out trial production of titanium products. In 2015, two rounds of hot-rolled titanium were carried out. Industrial testing of timber products has basically opened up process bottlenecks such as heating, rolling and coiling. Since the heating temperature and oxidation characteristics of the titanium plate and the deformation resistance are different from those of the ordinary steel, the rolling technology of the titanium plate is very difficult. During the test, there were faults such as the mismatch between the roller speed and the actual speed of the titanium plate and the disordered timing of the cooling water spray on the titanium plate, which limited the ability of the unit to mass produce titanium products.  

Since the beginning of this year, the company's sheet metal factory has actively carried out research on the key points and difficulties of the rolling production process of titanium products, and has formulated detailed titanium plate rolling research plans and trial production procedures. Since titanium is very sensitive to changes in rolling speed and temperature, it is extremely difficult to roll large rolls of titanium. In order to open up the difficulties in the mass production process of titanium products as soon as possible, the plate factory actively cooperated with the research institute to continuously carry out technical research on the characteristics of low temperature, soft quality and high surface quality of titanium plates, in heating system, rolling technology and size. Major technological breakthroughs have been made in control and surface quality.  

On the other hand, the two research groups of titanium product technology and equipment were established. The research team summarized the problems in the previous several trials, formulated detailed titanium plate rolling research plans and trial production rules, and organized the rolling mill operators. The basic knowledge system training of titanium plates was carried out, and the technical parameters of the rolling process were continuously revised and adjusted during the production process of titanium products. The titanium tracking system has been comprehensively improved, and the technical measures such as zooming the position tracking window, limiting the roller speed, and tracking and correcting the low temperature HMD are adopted respectively, so that the tracking system reaches the most stable state, and thus the titanium is made. The strip can accurately cut the head and tail to achieve a smooth belt and ensure the stability of the rolling process. A special mode for coiling of titanium was developed in the coiler control technology to ensure stable coiling of the titanium strip. By timely adjusting the angle of the purge water spray and taking appropriate measures such as increasing the take-up tension, the success of the batch-rolled titanium plate was ensured, opening up a new space for the development of high value-added products and innovation of Xichang Steel and Vanadium.

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