According to the official public account of "Tsingtuo Group",At 11:30 pm on November 10, 2023, Qingtuo Cold Rolling Technology successfully rolled 0.015 mm ultra-thin hand-shredded steel, setting a new world record.According to reports, hand-tearable steel is stainless steel that can be torn by hand.The scientific name is stainless steel foil, which is a steel material as thin as a cicada's wings and cheaper than gold.
Hand-shredded steel is widely used in many fields such as aerospace, electronics, new energy and medical equipment.It can be seen in everything from airplanes and photovoltaic power generation panels to foldable mobile phone screens.
Due to its excellent material performance, technical difficulty, and high equipment precision, hand-shredded steel has the reputation of "the crown jewel of the steel industry."
Previously, this technology was once monopolized by industrial powers such as Japan and Germany.
After hundreds of failures, Qingtuo Cold Rolling Technology R&D team finally optimized the process and improved operating skills.It has been possible to use domestic equipment to roll hand-shredded stainless steel with a thickness of 0.015 mm and a width of more than 600 mm.This is also the thinnest stainless steel in the world.