Shulou(Shulou.com)11/24 Report--

CTOnews.com November 13 news, according to the "Science and Technology Daily" reported tonight, the domestic enterprise Qingtuo cold rolling technology using domestic equipment successfully rolled 0.015 mm ultra-thin hand tear steel. This is the thinnest stainless steel in the world and a major breakthrough in process technology.

Lan Liang, deputy general manager of the group, said that in the production process, the accuracy control of production equipment, the purity control of steelmaking materials, the technical ability of production personnel and the cooperation of the project team will affect the rolling results.

After summing up experience from hundreds of failures, optimizing the process and improving operation skills, the R & D team finally realized the use of domestic equipment to roll hand-torn steel with a thickness of 0.015 mm and a width of over 600mm.

CTOnews.com Note: hand tearing refers to stainless steel that can be torn by hand, the scientific name "stainless steel foil", its thickness is usually only 1/4 of A4 paper and 1/6 of hair.

This steel is widely used in aerospace, electronics, new energy and medical devices, and can be used in products ranging from solar panels in aircraft and spacecraft to substrates for folding mobile phone screens.

Hand-torn steel has the characteristics of excellent material performance, high production difficulty, high equipment precision, weak corrosion resistance, oxidation resistance, heat resistance and so on. Before that, this technology was once monopolized by industrial powers such as Japan and Germany.

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