An important measure to reduce vehicle fuel consumption and pollutant emissions is to reduce the weight of the car under the premise of ensuring safety. The application of new materials can help achieve the goal of lighter vehicles, but domestic auto companies have limited awareness of the use of new materials, and the application of new materials remains to be popularized. Lightweight components exhibited by independent brand companies at the Shanghai Auto Show not long ago Cutting And Sewing Machine,Full Automatic Cutting Sewing Machine,Cold Cutting And Sewing Machine,Automatic Cold Cutting And Sewing Machine Zhejiang Sanlong Universal Machinery Co.,Ltd. , https://www.sanlongcomachine.com
Lightweight material application
Energy-saving emission reduction is related to the sustainable development of the country. Climate change and greenhouse effect problems are increasingly concerned by the relevant departments of the country. Green composite materials have low pollution and low production costs, and are in line with the requirements of sustainable development strategies. At present, the application of China's green composite materials in the field of aviation manufacturing has achieved initial success. The application in the field of automobile manufacturing needs to be further expanded.
The application of lightweight new automotive materials will contribute to the weight reduction of automobiles. By using lightweight metal and non-metal materials such as high-strength steels, aluminum-magnesium alloys, engineering plastics, and carbon fiber, the lightweight design of automobiles will achieve weight reduction. purpose.
According to industry insiders, lightweighting of heavy trucks is mainly achieved through rational structural design and the use of lightweight materials. Specifically, the first is to optimize the design of the entire vehicle structure, such as removing excess parts of parts and components, making the parts thinner and hollower, and reducing the number of parts. The second is to optimize material design and replace steel materials with low density materials. There are many lightweight materials that can meet the requirements of optimized structural design, such as high-strength steels, aluminum alloys, magnesium alloys, titanium alloys, and plastics.
If the conventional steel welding method is used to produce the subframe, 30 separate parts are required, and welding is required, resulting in higher processing costs. Using light metals can reduce parts by 60% and weight by 30%. The single-component casting technology not only uses light metals, but also has only one component, and the weight can be reduced by 40%.
The competition for lightweight vehicles is actually a competition for the application of new automotive materials.
The promotion and application of lightweight automotive materials is one of the effective ways to achieve energy conservation and environmental protection goals. On the basis of ensuring safety performance, lightweight materials are used to reduce the weight of the vehicle body, which can significantly reduce fuel consumption and carbon emissions, and increase product competitiveness.
As the world's largest emitter of greenhouse gases, China promised to the international community before the Copenhagen conference that by 2020, carbon dioxide emissions per unit of GDP will be 40% to 45% lower than in 2005. At present, China is fulfilling its commitments, but it still has a long way to go to achieve its goals. Although in the last five-year plan, China's promotion of the application of lightweight materials has achieved initial results, compared with the automotive industry, China's vehicle companies are still at the starting point.
In recent years, major automobile manufacturers in the world have joined hands with carbon fiber composite material manufacturers to accelerate the application of carbon fiber composite materials in the automotive field to realize vehicle weight reduction and energy saving. At present, Germany and Japan have brewing to achieve mass production of carbon fiber vehicles in the next two to three years.
At present, in the development and production of automotive composite materials, the developed countries have taken the lead and we have taken a step beyond ours in the use of new materials. Moreover, they have realized that the promotion of low carbonization of vehicles and the promotion of the production of green automotive materials will surely Initiate tremendous changes in the automotive industry.
Regardless of the quantity, quality, or technical requirements of automotive parts, the use of metallic materials in automobiles has an extremely important position. In recent years, the application of non-metallic materials has increased year by year, and composite materials have also demonstrated strong vitality. New materials such as carbon fiber and titanium alloys that are both lightweight and high-performance have begun to move from research labs to applications. There are many types of new materials, strong substitutability, and rapid technological upgrading. How to maintain the competitiveness of products is an important issue for independent brand companies to think about and study. 