"with the high level of railway investment in 2023, the construction of the main channel of the 'eight vertical and eight horizontal' high-speed railway network was speeded up. By the end of November, 36100 kilometers had been completed and put into operation, accounting for about 80 percent, providing a strong support for promoting coordinated regional development." On December 27, 2023, CCTV News broadcast a report that "China's eight vertical and eight horizontal" high-speed rail network main channels have been built for 36100 kilometers. It is worth mentioning that Panzhihua Iron and Steel Co., Ltd. is the main supplier of railway tracks used in the main passageway of the "eight vertical and eight horizontal" high-speed rail network, accounting for 1/3 of the total rail use.
China's "eight vertical and horizontal" high-speed railway network crisscross, extending in all directions, with speeds ranging from 200 km / h to 350 km / h, crossing mountains and rivers, and complex geographical and geological conditions. In order to meet the safety of high-speed driving, many complex technical problems need to be solved, and sophisticated high-speed rail manufacturing technology is one of the key links.
It is understood that as the earliest enterprise to produce high-speed rail in China, Panzhihua Iron and Steel Co., Ltd. has a rail production history of nearly 50 years, and is the rail production base with the highest strength, the most complete variety and the largest scale in the world.
As early as 1999, Panzhihua Iron and Steel Company broke the technical blockade and market monopoly of foreign high-speed rail production, broke through many technical problems in the development of high-speed rail, and produced China's first batch of 250 km / h high-speed railway rails. Applied to China's first high-speed railway Qinhuangdao-Shenyang passenger dedicated line. In 2005, Panzhihua Iron and Steel Co., Ltd. developed and produced a 100-meter fixed-length rail for a 350 km / h high-speed railway, becoming the first in China and the third in the world to produce high-strength, high-flatness, high-surface finish and high-dimensional precision rails in accordance with the most stringent international quality standards. the rail performance is equivalent to the best similar rails in Japan and France in the world, and some indicators are in the leading position. it has been successfully used in the Beijing-Tianjin intercity railway.
Panzhihua Iron and Steel Co., Ltd. serves the national strategy and is committed to building a world-class rail brand. After years of construction and development, a set of relatively perfect rail production quality assurance system has been established, with world-class universal seven-stand rolling mill and 100-meter long-foot rail on-line heat treatment production line equipment, universal method + 100-meter long-foot rail on-line heat treatment technology with completely independent intellectual property rights, and China's first-class heavy rail welding laboratory of the National Local Joint Engineering Research Center. We have created and applied for more than 60 rail patents, and the quality of rail products has reached the requirements of Chinese high-speed railway technical standards, EN (European Union Railway Rail Standard), AREMA (American Railway Engineering Association Standard) and other world advanced standards. The high-precision manufacture and excellent performance of rails in Panzhihua Iron and Steel Co., Ltd. have won the favor of foreign high-speed rail customers in China, bringing people the experience of "sleeping like babies".
Up to now, Panzhihua Iron and Steel Co., Ltd. has supplied more than 31 million tons of tracks to China's high-speed railway, high-speed railway and ordinary railway, which is equivalent to circling the earth three times. Among them, the total supply of high-speed rail reached more than 1.4 million tons, which has been successfully applied to many high-speed railway lines in Beijing, Shanghai, Kunming, Xicheng, Guangzhou, Shenzhen and Hainan, contributing to the construction of China's high-speed rail network.
With the launch of several new popular styles since August, China's smartphone market has warmed up. The material of structural parts is now the focus of the major mobile phone manufacturers. 3C manufacturers such as Xiaomi and Huawei have launched titanium alloy products to make parts. Compared with other materials, titanium alloy has the properties of high strength, strong corrosion resistance and high and low temperature resistance, so it is suitable for 3C electronic field, but difficult to process and high price are the main reasons for the wide application of titanium alloy. At present, titanium-aluminum composites are the mainstream materials of consumer electronics, but the manufacturing process remains to be mature.