Chinese leading stainless steel precision strip steel manufacturer successfully developed high-strength wide-width ultra-thin precision stainless steel strip
On July 19, 2019, as always, the sales manager of TGJT Stainless Steel Strip Technology Group, a leading manufacturer of stainless steel precision strip in China, was busy receiving several new and old customers who came to discuss cooperation. The “wide ultra-thin precision stainless steel foil”, which is less than 1/3 of the hair diameter and thinner than A4 paper and can be easily torn by hand, was once monopolized by a few companies in Germany and Japan. Today, TGJT not only broke this international monopoly, the market order volume soared, but also became the world’s only production base for wide-format “high-strength wide-format ultra-thin precision stainless steel foil”. Thin precision stainless steel foils become “net red products”
The size range of stainless steel precision strip is generally between 0.05 and 0.5 mm, and those below 0.05 mm are called stainless steel foil. With the successful development of products with thicknesses of 0.1 mm, 0.05 mm, and 0.03 mm one by one, can TGJT further break through the limit thickness of 0.02 mm stainless steel and break the monopoly of foreign technology, which has become an urgent problem for TGJT.
At the beginning of 2018, ultra-thin stainless steel precision foil with a thickness of only 0.02 mm was finally successfully developed at TGJT. As a landmark product of TGJT, ultra-thin stainless steel precision foil has a thickness of only 0.02 mm and a width of 600 mm.
Ultra-thin stainless steel precision foils are high-end technical products in stainless steel materials. In the past, ultra-thin stainless steel precision foils could only be produced in Germany, Japan and other countries, and they produced narrow-width products with a width of 350 mm to 400 mm. . The 600mm wide “ultra-thin stainless steel precision foil” developed by TGJT is mainly used in aerospace, petrochemical, automotive, electronics, home appliances, computers, new energy, flexible folding screens and other fields.
Duan Haojie is the technical director of TGJT’s precision strip rolling operation area and participated in and witnessed the research and development of “ultra-thin stainless steel precision foil”. “Rolling, annealing, hardening force … The process procedures for each thickness are different, and there are tens of thousands of combinations.” He said that in two years, the staff in the rolling operation area tried to find out while producing and successively overcome 452 process problems, experienced more than 700 failures.
In 2018, the company annually produced 24,000 tons of thin strips of various specifications, and the two rolling mills were operating at full capacity. “After we produced it, the prices of foreign products fell sharply, and now the application fields are becoming more and more extensive.” Wang Tianxiang said, the wide “ultra-thin stainless steel precision foil” not only meets the market demand, but the application field is getting wider , Also filled the domestic gap. The expert review committee of the China Metal Association assessed that the achievement reached the international leading level. “A small step of 0.01 mm is a big step in the development of the industry.
At present, TGJT has a series of proprietary technologies and authorized patents with 2757 pieces of stainless steel as the core, including 772 invention patents; presided over the formulation of 70% of the national standards of China’s stainless steel industry, and the products have a pass to supply the global market; 18 special Steel products are the first in China, with 26 kinds of market share first, more than 40 kinds of successful replacement of imported products, high-end products accounted for more than 85% of the effectiveness, and stainless steel exports are the world’s first.