The wide ultra-thin high-grade non-oriented electrical steel, with a thickness of 0.1 mm, is the world's thinnest "hand-torn steel" in the field of non-oriented electrical steel and was rolled by the China Baowu Steel Group Corporation on June 28.
This is the first successful rolling of 0.1 mm wide ultra-thin non-oriented electrical steel in China, and it is also the first time for the global steel industry to achieve the full-process production of 1250 mm wide ultra-thin non-oriented electrical steel with a thickness of 0.1 mm.
It marks China's research and production in the field of wide ultra-thin non-oriented electrical steel having reached the highest level in the world.
The production of 0.1-millimeter wide ultra-thin non-oriented electrical steel is one of the important indicators to measure a country's production of special steel and the level of technological development. Used in a number of products such as high-end equipment, high-efficiency motors, cutting-edge drones, advanced household appliances, and top energy vehicles, the steel was previously monopolized by a few countries.
To break the predicament of "high-priced purchases" and the "stranglehold", and to achieve the strategic goal of "building a top-notch global demonstration enterprise of high-quality silicon steel and thick plates", the China Baowu Steel Group Corporation has made continuous efforts and successfully rolled the thinnest 0.1 mm high-grade non-oriented silicon steel after the 0.15 mm steel in March this year.
During the research process, the company adhered to independent innovation, overcame multiple key core technical problems and broke through the limits of existing equipment.
It not only breaks the monopoly of foreign technology, but expands the rolling width to 1250mm for the first time in the world.
This crucial breakthrough has made the company the first in the world able to produce 10,000 tons of 0.1-millimeter wide ultra-thin non-oriented electrical steel per year, ranking first in the world in annual production capacity.
(Executive editor: Xie Yunxiao)
