：[xinhua finance] shagang has realized the industrial production of ultra-thin belt and promoted the

Xinhua finance nanjing, March 31 (reporter zhu cheng) shagang group announced on the 31st, the company's construction of an international leading level of ultra-thin belt production line has taken the lead in industrial production.The production line is short in process, low in energy consumption, low in investment and green in environmental protection. Its length is only about 50 meters. It can produce low carbon steel, high strength steel, high carbon steel, weathering steel and other products with a thickness of 0.7-1.9mm.It has an annual capacity of 500,000 tons.

The ultra-thin strip production line directly enters liquid steel into the distribution system, and through the reverse rotation of the copper roll casting, directly produces 1.4-2.1mm sheet, and then through a rolling mill rolling, the final product is 0.7-1.9mm sheet, hot coil plate."It's kind of like rolling dough with a rolling pin."Shagang group ultra-thin belt production workshop deputy director gu xiaoxiang said.

The project of shagang's ultra-thin belt has been in preparation since January 2015. CASTRIP technology of nucor ultra-thin belt is mainly introduced for digestion, absorption and re-development, which improves the continuity of production and the stability of product quality.

Shi xinyi, executive director of shagang group, said that the new technology has obvious advantages over the traditional production process.First, the process is short and the footprint is small.Conventional hot rolling production line length is about 800 meters, ultra-thin strip production line length is only about 50 meters, can greatly save the production land.

Second, low energy consumption and low emissions.Due to the shortened process, the total energy consumption of the ultra-thin strip process is expected to be about 1/5 of the traditional hot continuous rolling process, and the carbon dioxide emission is expected to be about 1/4 of the traditional hot continuous rolling process. Compared with the traditional hot continuous rolling process, fuel consumption, water consumption and electricity consumption are greatly reduced.

Also, fast pace and steady performance.Ultra-thin strip technology can efficiently produce ultra-thin and ultra-wide high strength steel and special steel, and the product performance is stable, the fluctuation of yield strength and tensile strength between batches is small, and the fluctuation of yield strength and tensile strength between different batches is significantly lower than that of traditional hot rolling.

By the end of February 2019, the consumption of molten steel in shagang ultra-thin strip production line has exceeded 200,000 tons, among which the rolling strip output is 187,000 tons, and the production and sales of the products after trimming, drawing and rectifying are basically balanced.Shen bin, party secretary of shagang group and executive director of shagang board, said, "this ultra-thin belt production line is an innovation of traditional steel production technology, with a strong forward-looking, is the future direction of shagang to improve quality and efficiency."

Editor: shi ke