“The comprehensive performance of this product, such as excellent wear resistance and good roll shape retention, has brought huge benefits beyond imagination to steel enterprises." Since the beginning of this year, Sinosteel XTMMC has once again attracted attention with its strength. The self-developed temper mill special roll for hot-rolled strip rolling line has continued to "absorb powder" in the circle of friends, and has become a hotly sought after "net celebrity" product among many well-known steel companies. According to statistics, since the beginning of this year, the company has added 6 major customers with SPR100 contracts of more than 10 million yuan, and the number of orders has increased by more than 90% over the previous year.

The hot-rolled temper mill stand is an indispensable part of the hot-rolled strip rolling line. The rolled products are widely used in ships, automobiles, bridges, construction and other fields, and are an important manifestation of the country's comprehensive national strength. As the core spare part of the tempering process of the hot rolling line, the work roll of the temper mill is the key to ensuring the rolling of high-quality thin plates and improving the quality of the finished strip steel. In recent years, the product application market has increasingly strict requirements on the accuracy and surface quality of hot-rolled sheets, and the amount of rolling line tempering continues to increase. The conventionally used temper mill work rolls have insufficient wear resistance, insufficient roughness resistance, and roll surface retention. Problems such as poor performance have greatly restricted the increase in the production capacity of the rolling line.

As a global roll R&D and manufacturing base, Sinosteel XTMMC relies on the "3C" national roll scientific research platform of the National Roll Research Institute, the National Enterprise Technology Center, and the National Roll Composite Materials Key Laboratory to actively explore the upgrade and replacement of the work roll of the temper mill. In view of the characteristics of the work roll of the temper mill, the limit manufacturing problem of small size and thin thickness has been overcome, and the special roll for the temper mill that can meet the low-temperature rolling of the temper mill and the rolling of the finished plate is successfully developed. It has the mass production and supply capabilities for all specifications of rolls used in the hot-rolled strip rolling line.

Compared with the traditional material, the special roll for the temper mill of Sinosteel XTMMC has stronger thermal stability, and the rolled tonnage per mm has been increased by more than 2 times, especially its high adaptability of "no need to change the rolling line conditions and grinding equipment parameters, and can be used directly on the mill", successfully replaced the imports. A recent feedback from a well-known domestic steel company showed that the use of special rolls for Sinosteel XTMMC's temper mill has prolonged the average roll change cycle by nearly 200%, and has reduced roll consumption by more than 10%, which has completely eliminated the pits in the work rolls of traditional temper mills. The phenomenon of pits satisfies various rolling requirements and has become the first choice for many domestic steel companies to improve quality, increase efficiency, and reduce costs. It has also been promoted to Baosteel, Anshan Iron and Steel, Shougang, China Steel in Taiwan, Bluescope in Australia, NLMK in the United States, Palport in Britain and other large steel companies.