The high-speed wire finishing mill bearing jointly developed by Luoyang LYC Bearing Co., Ltd. Railway Passenger Car Bearing Co., Ltd. (formerly Luozhou Iron Passenger Company) and Shougang Co., Ltd. Third Wire Factory, and specifically organized by Luozhou Iron Passenger Co., Ltd. Technical appraisal organized by the China Metals Society High-line Small Mill Equipment Technical Committee. Experts believe that the technical level and product quality of this kind of bearing have reached the advanced level of similar bearings in the world. This marks China as the third country in the world to produce high-performance high-speed finishing mill bearings.
High-speed wire rod mill equipment is a combination of machine, electricity, liquid and instrument, high-tech equipment integrating process and equipment, smooth production of high-speed wire rod mill production line, to realize the structural adjustment of wire products and promote national economic development. It has a very important meaning. China has long lacked such equipment. Since 1986, the first high-speed wire rod mill was introduced to foreign countries. In the 10 years since 1996, China's high-speed wire rod mill has developed to 38 production lines, forming a new generation of wire rod production capacity. In 1995, the national high-speed rolling mill's steel output reached 5.57 million tons, accounting for 33% of the country's wire production, becoming a living force in China's steel production. In recent years, in order to meet the needs of the market, high-speed rolling mill production and its production volume have made new developments. By the year 2000, the output of steel produced by high-speed rolling mills nationwide had risen to 53% of the country's wire production. For the first time, it exceeded half of the national wire production. The steel output of high-speed rolling mills accounted for more than 13% of the national steel output.
The state attaches great importance to the technical development and technological innovation of high-speed rolling mills, and has organized various efforts to tackle the localization of high-speed rolling mill spare parts. On the one hand, it ensures the normal production of rolling mills and gives full play to the production capacity of rolling mills; China has developed a complete set of rolling mill development work to rapidly improve the level of localization of high-speed wire rod mills. Due to various efforts, China has designed and manufactured a high-speed wire rod mill with a contemporary level, and exported precision parts of the rolling mill, such as finishing mills and laying machines, to the Philippines, Indonesia and Vietnam.
High-speed rolling mill finishing mill bearings play a vital role in the entire production process. Due to the high speed of the high-speed rolling mill in the production process, and the heavy bearing load and impact load, the quality and service life of the special bearing are very high. In the past, China's high-speed finishing mill bearings have long relied on imports, and they need to spend a lot of foreign exchange every year. In order to break the monopoly of foreign investors on this market, Luozhou Iron Passenger Company and Shougang No.3 Wire Rod Factory began cooperation in May 1999, and stepped up research and development of high-line finishing mill bearings. Luozhou Iron Passenger Company is a high-tech enterprise recognized by the Science and Technology Commission of Henan Province. It passed the ISO9001 quality system certification in 1998 and has strong technical force. The special bearing developed and produced by the company and Shougang No. 3 Wire Factory has been tested for more than half a year. It has rolled more than 400,000 tons of wire and has good operation and stable performance. Relevant experts believe that this kind of bearing design is advanced, the process is reasonable, the processing is excellent, and the testing equipment is advanced. The high-line finishing mill bearing developed and produced is the first in China.
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