The State Council issued an action plan for Continuous improvement of air quality, which said that it will resolutely curb the blind construction of high energy consumption, high emission and low level projects.

Problems such as exhaust pollution and oil safety have prompted new energy vehicles to become the mainstream of future motor vehicles, and high-grade non-oriented electrical steel, as an important soft magnetic material, is widely used in high-end home appliances, new energy vehicle drive motors and efficient industrial motors and other fields.

With the adjustment of China's steel industry structure, there are dozens of kinds of steel products launched in the world this year, and these high-end products not only meet the needs of domestic manufacturing industry, but also become popular products exported overseas.

The rough rolling process is because the fine MnS is precipitated in the finishing rolling process, so it is necessary to control the temperature, time and thickness of the thin slab after the rough rolling and before entering the finishing mill (MnS begins to precipitated at about 1200 ° C, and the precipitation speed is the fastest at 1100~1150 ° C when the number of γ-phases is the most, and the precipitation is basically stopped at < 950 ° C).

Before 2030, the annual demand increase is less than 200,000 tons, mainly for high-magnetic induction varieties.

Low hysteresis loss refers to the low hysteresis loss of medium frequency cold-rolled non-oriented electrical steel, which can effectively reduce the energy loss of the motor and improve the energy utilization efficiency.

According to the prediction of China Electric Power structure in 2022-2025 and the calculation method of "The value and market opportunity of oriented electrical steel under the" dual-carbon "strategy", Everbright Securities calculated that the newly installed capacity of transformers in 2022-2025 corresponding to the amount of oriented electrical steel is 164, 176, 187, 2.01 million tons, respectively.

The iron loss of electrical steel plate is divided into eddy current iron loss and hysteresis iron loss. Eddy current iron loss is the iron loss caused by the induced current flowing in the transformer core in AC magnetic field.