SHBG's self-developed new 0.18mm specification 060 grade (B18R060) extremely low iron loss oriented silicon steel has achieved the world's first launch, two grades higher than the highest international grade today, and is the world's lowest loss oriented silicon steel. After 10 years of continuous research, SHBG Co., Ltd. has achieved the world premiere of eight new oriented silicon steel products, and successfully achieved the highest level of all grades of oriented silicon steel of 0.18mm, 0.20mm, 0.23mm, 0.27mm, 0.30mm, and 0.35mm. It has a leading edge of one or more brands in four specifications.
Due to the highly complicated manufacturing technology and extremely narrow process window, oriented silicon steel is known as the "Pearl in the Crown of Steel" and represents the comprehensive technical level of a country's steel manufacturing industry. For a long time, China's oriented silicon steel manufacturing technology lags behind others, and high-end products rely on imports, which seriously affects the country's major project construction and power security. In 2008, Baosteel Co., Ltd. “refined a sword in ten years”, independently developed the low-temperature and high-magnetic-oriented silicon steel manufacturing technology and achieved industrialization, breaking the monopoly position of foreign products on large-scale power transformers with a voltage level of 330kV and above, taking the lead The localization of UHV, UHV AC and DC large-scale power transformers has been achieved, and they have been successfully applied to key national projects such as the Three Gorges, Liangdu, and Gehu, which have strongly supported the healthy development of China's power industry.
Since 2010, in order to achieve the technical upgrade, energy saving and emission reduction of power transmission and distribution networks, major countries and regions in the world have introduced mandatory energy efficiency standards for transformers, efficient and environmentally friendly transformers, and extremely low iron loss and low noise of oriented silicon steel for iron cores. The trend of change is irreversible. Baosteel Co., Ltd. quickly grasped the development trends of policies, markets and technologies. With the support of the company's Golden Apple technology field project, the "13th Five-Year Plan" national key research and development plan project and the Shanghai Municipal Government project, Baosteel took the lead in developing the extremely low iron loss characteristics and Research on the manufacturing technology of two new types of advanced oriented silicon steel products with low magnetostrictive properties has been widely reported in recent years.
In response to the development of new products with extremely low iron loss oriented silicon steel, SHBG Co., Ltd. has carried out comprehensive technical innovation from product technology to production equipment, and has successively achieved the world's first launch of seven new products, including B30R090, B27R080, B20P080, B18P080, B18R065, B20R065, and B18R060, and developed B23P085, B23R075, B20R070, B23R070 and other new products filling domestic gaps. B18R060 new product is currently the world's lowest loss oriented silicon steel, which is about 15% lower than the highest international level. Aiming at the application of high-efficiency environmental protection transformers, Baosteel Co., Ltd. concentrated on researching the electromagnetic characteristics and processing characteristics of new products with very low iron loss, and quickly broke through the transformer core electromagnetic simulation design optimization technology. Iron-wound silicon steel distribution transformers reduce no-load losses by more than 20% and noise levels below 33dB; B18R060, B18R065, B20R065, B20R070, B23R070 new products are the first to be used to manufacture silicon steel laminated iron that exceeds current national level 1 energy efficiency standards Core distribution transformer, reducing no-load loss by more than 30%; B23R075 new product is the first in Changji-Guquan ± 1100kV UHV DC transmission project with the highest voltage level, the largest transmission capacity, the longest transmission distance, and the most advanced technology in the world. Demonstration application; B20R070 new product has been used to manufacture 110kV Baosteel rolling mill main transformer, reducing no-load loss by about 50%.
Aiming at the development of new products with low magnetostrictive oriented silicon steel, SHBG Co., Ltd. started with key technologies such as improving Goss orientation consistency, grain control, and surface tension optimization, which significantly reduced the product's noise characteristics; the world's first B27R095-LM, new products , Has developed B30P120-LM, B30P105-LM, B30R100-LM, B27R090-LM, B23R085-LM, B23R080-LM and other new products that fill domestic gaps. High-efficiency and low-noise transformers made of products with low magnetostrictive properties have been widely used in important landmark buildings with strict requirements on noise, such as Guangzhou Baiyun Airport Terminal, Xiamen BRIC Conference main venue, etc .; manufactured with conventional products of the same level Compared with transformers, the noise reduction effect is 2 ~ 4dB, which is highly praised by transformer users and end users.
The new B18R060 product developed by SHBG Co., Ltd. is two grades higher than the current highest grade of internationally oriented silicon steel. If this product is used to manufacture a transformer that exceeds the current national level 1 energy efficiency and replaces China's high-energy-consuming transformer, it will save about 90 billion kWh of electricity each year, which is equivalent to 90% of the annual power generation of the Three Gorges Power Station. These R & D achievements not only indicate that China's oriented silicon steel manufacturing and application technology has entered the world's leading ranks, but also significantly improved the overall technological level and comprehensive competitiveness of relevant strategic emerging industries, and strongly supported China's manufacturing power strategy and energy conservation and emission reduction.