Recently, the China Non-ferrous Metals Industry Association organized Yunnan Xinmei Aluminum Foil Co., Ltd. to independently develop the “Technology Appraisal of 0.005mm Aluminum Foil Technology Development for Casting Billet Production†project. The participating experts listened to the technical research report of the project and reviewed the inspection report. , user use reports, new reports and other technical data, through question and answer questions and on-site inspections, after careful discussion, experts believe that the project is technologically advanced, the process is reasonable, the technology is mature; consistent with the green, sustainable development of the national policy and EHS concept; The company's self-manufactured cast blanks are used as raw materials. After rolling, homogenizing and intermediate annealing processes, 0.005mm aluminum foils are produced in batches. The technical specifications achieved are as follows:
Thickness tolerance: +2--6%, that is, the actual thickness of the product can be controlled within the range of 0.0047-0.0051mm;
Difference (mm): ±1;
Unwinding (m): ≤1.O:
Connector (/10000m): ≤2;
Number of pinholes (units/m2): ≤ 7000;
Pinhole aperture (mm): ≤0.2;
Tensile strength (N/mm2):
O state: 50-98
H18 status: ≥1 00
Elongation (%): 0.5 ~ 1.O
The results of the use of cast blanks for batch production of 0.005mm size aluminum foil, is the first time at home and abroad, with independent intellectual property rights. The main technical indicators met the requirements of domestic and foreign customers, and individual indicators were superior to foreign counterparts, and the market reflected good results. The overall level of the project has reached the leading domestic level, and the 0.005mm technology for the production of capacitors using cast blanks is an international leading level.
The company's mass production of 0.005mm aluminum foil marks the successful transformation of the project's scientific and technological achievements, filling the gaps in the domestic market and realizing alternative imports. The product price is lower than the import price by about 30%, and the value of 0.006mm aluminum foil is increased by about 30%. The economic benefits are significant. The project further promotes the miniaturization and lightweighting of domestic electronic components. It is in line with the comprehensive utilization of national resources and the construction of a conservation-oriented society. It will have a major impact on the technological progress and industrial restructuring of the aluminum processing industry, with significant social benefits.
At the same time, experts suggest that the project application unit should strengthen the protection of intellectual property rights, strengthen market development, increase the market share at home and abroad, and transform the project results into more significant economic and social benefits as soon as possible.