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

Recently, the "Silk Aluminum" 5L52 jointly developed by Lenovo Group and Chinalco Ruimin has passed the examination and approval of the national standard and become a new national standard, and the unveiling ceremony was held in Beijing on March 28. Ouyang Jun, vice president and general manager of consumer business of Lenovo Group, and Cai Feng, vice president of China Aluminum Group High end Manufacturing Co., Ltd., attended the unveiling ceremony to witness the birth of silk aluminum, the first Chinese original aluminum alloy sheet in the 3C field, and the new GB brand 5L52.

Innovative material "Silk Aluminum" to create good-looking objects

With the diversification of consumer demand, notebook application scenarios are constantly subdivided, and the appearance designs of lightweight books, game books and office books also show the needs of diversification, personalization and high appearance. Appearance and quality play a more and more important role in the decision-making process of consumer purchase, and users' demand for high-quality and differentiated appearance promotes the continuous innovation of material technology.

Lenovo "Silk Aluminum" 5L52 was awarded a new national standard registration certificate.

Recently, the new aluminum material "Silk Aluminum" 5L52 developed by Lenovo Group has formally passed the national standard examination and promulgation, and has been compiled into the national standard GB / T 3190, which is the first new national standard of Chinese original aluminum alloy plate and strip in 3C field. The notebook computer products made of this "silk aluminum" material have beautiful colors, silky light feeling, and delicate surface with unique high-end texture.

"Silk Aluminum" 5L52 takes into account both metallic luster and silky feel

Last month, Lenovo officially launched a full range of spring products for the new notebook in 2023. Among the new notebook products, the slim and fashionable new Air 14 2023 haze purple color is refreshing. The laptop body uses Lenovo's self-developed aluminum material "silk aluminum", which has a silky feel and luster, appearance and experience coexist. " Silk aluminum "material has been widely used in YOGA, Xiaoxin, savior, ThinkBook and other Lenovo product series, fashion, trend, personalized design, so that users enjoy a" colorful "better life.

Lenovo small new Air 14 2023 haze purple

After three years of research and development, "Silk Aluminum" has realized the new brand of "National Standard"

In recent years, benefiting from the extremely light pursuit of notebook computer design, the heat of magnesium-aluminum alloy materials has greatly increased. At present, the vast majority of notebook computer body materials are made of traditional aluminum-magnesium alloy (5052 series), which is based on aluminum and magnesium as the main additive. Aluminum-magnesium alloy is suitable for stamping and CNC processing, with sandblasting, wire drawing, anodizing or NIL process. It has the characteristics of good heat dissipation, light weight, low density, strong compression resistance, easy coloring, but low gloss and rough feel. The material pattern is obviously at a congenital disadvantage.

Before the birth of the "silk aluminum" material, most of the aluminum-magnesium alloy plates in the standard GB / T 3190 used the material numbers of the former Soviet Union, the United States and Japan, which have been in use for decades.

Starting from 2020, Lenovo's consumer notebook R & D team quantified the "perceptual cognition" of appearance and quality by scientific means, and concluded that the plates used in the industry at that time could not meet users' needs for computer beauty and quality. in the three years of research and development, Lenovo and many core partners in the organizational industry chain have worked together to complete the standardization and digitization of the whole process, overcoming one technical problem after another. Tens of thousands of samples were made, and finally the brand-new material "silk aluminum" 5L52 was created with the initials "L" in Lenovo LENOVO.

Xin Zhifeng, chief engineer of Lenovo and director of notebook research and development for small and medium-sized enterprises

Huang Ruiyin, Chief engineer of Chinalco and Assistant General Manager of Chinalco Ruimin Co., Ltd.

In the process of manufacturing "silk aluminum" 5L52 material, the strict control of iron content is realized, the temperature range of annealing and tempering is clearly defined, and the most reasonable grain size is controlled in the face of the changes of grain growth, displacement and dislocation in the rolling process, so that the interface between each grain is the most uniform and the dislocation is minimum. In the process of anodizing, each component of acid corrosion is accurately controlled, including temperature, time, as well as the particle, speed, area and angle of sandblasting, and many key technological indexes are solved and finalized.

"Silk Aluminum" 5L52 has uniform metallographic structure

With the launch of Lenovo's new products, 5L52, named "Silk Aluminum", is officially launched to users. It is expected that 8 million Lenovo notebooks will use "Silk Aluminum" 5L52 materials this year, which will greatly improve the appearance quality and product competitiveness of Lenovo notebooks.

Application of new materials and technology to promote sustainable development

The advent of "Silk Aluminum" (new brand 5L52) and the examination and promulgation of the new brand reflect not only Lenovo's tireless pursuit of technological innovation, but also the national recognition of the innovation achievement. Technological breakthroughs have been verified, with sufficient market volume and extended to many brands in the industry, Lenovo's "Silk Aluminum" technological innovation will certainly lead to breakthroughs and progress in the field of high-end aluminum alloy plate and strip technology in China.

Lenovo products use recyclable and environmentally friendly materials

In terms of material technology innovation, as the earliest science and technology manufacturing enterprise in China to devote itself to the practice of ESG, Lenovo's innovation achievements of green environmental protection are also very eye-catching. In 2021, Lenovo has reached more than 95 per cent of PCR (recyclable plastics) in adapters, cable brackets, speakers, batteries and other components, leading other competitors in the industry and effectively reducing carbon emissions. Lenovo Group promises that by 2025, all computer products will contain recycled plastics to support products to meet higher eco-design requirements and provide consumers with green and low-carbon products.

During the two sessions, Minister of Science and Technology Wang Zhigang said in an interview with reporters that market-driven and applied basic research should be strengthened, so that basic research can be systematically laid out and promoted systematically. make our basic research truly combined with national strategy and national development goals, and play an irreplaceable basic, strategic, source supporting and leading role.

Lenovo Global headquarters Park in Beijing

Reform the old and innovate and stick to the original mind. With the birth of the new national standard of "Silk Aluminum" 5L52, Lenovo pushes material research and development, manufacturing and green environmental protection to a new stage of high-quality development. While Lenovo takes "customer as the center" to build innovation and technology to improve the quality of its own development, it has taken a solid step towards sustainable development by working with eco-strategic partners to build a basic research system.

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