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Dongguan Life-Style Casting Co.,Ltd

Address: Zhonghuiliyang Shidai, Dongcheng, Dongguan, Guangdong, China 523180

GeneralManager: Sherry Luo

Tel: 86-769-89865086

Mobile: 86-13712854626

Fax: 86-769-89865086

Whatsapp: 86-13712854626

E-mail: info@life-stylecasting.com

               sherryluo86@gmail.com 

Skype: miaomiao91919

www.lifestylecasting.com

Auto Casting Part Current Situation Of Automobile Casting Industry

Auto Casting Part Automotive Casting Industry Status In the rapid development of science and technology today, due to the special advantages of casting forming process, some complex structural parts at present there is no other manufacturing process can be replaced. Automotive castings are still the most economical and convenient metal forming process. With the global economic integration, international cooperation is becoming increasingly close, increasingly fierce competition, the Chinese auto casting industry should be more fully play the advantages of casting resources, the development of their foundry industry.

  In the rapid development of science and technology today, due to the special advantages of casting forming process, some complex structural parts at present there is no other manufacturing process can be replaced. Casting process is still the most economical and convenient metal forming process. With the global economic integration, international cooperation is becoming increasingly close, increasingly fierce competition, the Chinese auto casting industry should be more fully play the advantages of casting resources, the development of their foundry industry.

  1. China's foundry industry status

  Auto Casting Part China is the world's largest casting production countries, according to information, the output value of China's foundry products in the national economy accounted for about 1%. In recent years, casting import and export trade grew rapidly, casting production has reached 9%. China's casting plant as many as more than 20,000, casting industry practitioners up to 1.2 million. "Yangtze River Delta" region of the castings accounted for 1/3 of the country, mainly in the region to private enterprises, automotive and auto parts industry, the development of a strong driving the development of the casting industry. Wanfeng Auto is Asia's largest aluminum alloy wheel business, with an annual output value of more than 1 billion yuan, exports amounted to 6,000 US dollars. Kunshan Fuji and Machinery Co., Ltd. production of automotive engine and brake system castings, the annual output of 40,000 t, sales of 550 million yuan. East China Taikesi is an advanced modern cylinder block casting production enterprises, with an annual output of 1 million

  Capacity of car cylinder block. Shanxi is a large province of foundry resources, rich in pig iron, coal, aluminum and magnesium, electricity, labor resources, so that Shanxi's foundry industry has unique advantages, with 500 foundry enterprises, 80% for private enterprises. Shanxi International, River Jin Shan, Shanxi Huaxiang annual output of 40,000 t, respectively, 20,000 t, 120,000 t. "East three provinces" have FAW Group, Hafei Group and other key car companies led to the growth of automobile casting production. FAW Group Casting Company, has formed 40 million tons of casting production capacity. Liaoning North Crankshaft Co., Ltd., to the "Eleventh Five-Year" will form an annual output of 150,000 engines, 1 million crankshaft, the output value of 2 billion crankshaft production base. "Pearl River Delta" die-casting industry developed, there are more than 700 die-casting enterprises, the annual output of 200,000 t. Dongfeng Nissan, Guangzhou Honda, Guangzhou Toyota and parts and components enterprises to drive the development of the die-casting industry, car cylinder block, cylinder head die casting output increased year by year.

  2. Status of foreign casting industry

  In recent years, the global casting industry continued to grow in 2004, casting production increased 8.4% over the previous year, China produced 22.42 million tons of castings, the world's first, up 23.6% over the previous year. The output and growth rates of the world's top 10 foundry producers are shown in Table 1. As can be seen from Table 1, China's casting production in 2004 accounted for about 1/4 of global casting production. Brazilian casting production grew the fastest, reaching 25.8%. Countries with more than two digits of growth are Brazil, China, Mexico and India, all developing countries. While the growth rate of casting in developed countries is generally low. US casting production since 2000, has been relegated to No. 2. In 2004, the total output of castings in the United States was 12.33 million t, of which 35% were gray iron pieces, 33% of ductile iron pieces, 8.4% of cast steel pieces and 16% of aluminum alloys. From the demand point of view, the demand for ductile iron and aluminum casting is growing. In 2003, imports accounted for 15% of the total demand, the price of imported castings lower than the United States 20% to 50%. In recent years due to casting environmental requirements, energy consumption, labor costs and other reasons, the United States large car company production of ordinary automobile casting foundry have closed, and gradually cast production to China, India, Mexico, Brazil and other developing countries. Japan's foundry industry is sluggish and its practitioners are declining. In 2004, Japan's total casting output was 6.39 million tons, of which gray iron accounted for 42%, ductile iron accounted for 30%, cast steel accounted for 4%, aluminum alloy accounted for 21%. From the demand point of view, the demand for ductile iron and aluminum casting is growing. Japan's casting industry in the technical innovation has done a lot of work, the development of the ball low-expansion casting sand, high vibration cast iron materials, silicon heat-resistant ductile iron and other materials. The vacuum die-cast castings can be welded and heat treated, semi-solid casting production for automotive aluminum wheels, improved strength and elongation. Magnesium alloy die casting further development, and replace gravity casting, its performance is improved, the cost is reduced.

  3. Car casting technology development direction

  Automobile technology is the development of light weight, numericalization and environmental protection. According to the relevant information reported that the car weight reduction of 10%, fuel consumption can be reduced by 5.5%, fuel economy can be increased by 3% -5%, while reducing emissions by about 10%. Casting lightweight there are two main ways. First, the use of aluminum, magnesium and other non-ferrous alloy castings, the United States in 2003 statistics 2/3 of the aluminum castings for cars, each car to 107 kg. The second is to reduce the casting wall thickness, the design of multi-part combination castings, the production of thin-walled high-strength composite castings, and reduce the processing margin, the production of nearly final shape castings. With the rapid development of automobile technology, in order to shorten the casting production preparation cycle and reduce the risk of new product development, requires the use of rapid tooling technology, computer simulation, 3D modeling, numerical control technology. And clean production, waste recycling is the development trend of the casting industry, reduce energy consumption is the theme of its sustainable development. China's automobile casting industry must take the road of high efficiency, energy saving, materials, environmental protection and green casting, because the state and society require strict control of the automobile casting industry, large energy consumption and large pollution, in order to improve the casting industry hot, dirty, tired labor The labor environment of the intensive industry employees.

  4. Automobile casting technology development trend

  Auto Casting Part Domestic and foreign automobile casting technology development trend is very much, now only some of the automotive industry in a large number of production lines in the casting technology and development trends.

  4.1 Sand casting technology

  Auto Casting Part Tidal mold modeling through a manual compact shock + compaction compaction → high pressure + microseismic tightening → gas-tight compaction → static pressure compact several stages of development. The essence of static pressure modeling technology is "pre-compaction + compaction", which has the following advantages: the contour of the mold is clear, the surface hardness is high and uniform, the draft angle is small, the utilization rate of the plate is high, the process equipment is small , The mold surface roughness is low, the mold type waste rate is low. Therefore, is the latest, most advanced modeling process, and has become the mainstream of today's compact process. At present, high-pressure modeling and a single gas-washed shape has been gradually replaced by static pressure modeling, the original high-pressure molding line and gas-red modeling line of the host has been gradually updated to static pressure modeling host, the new foundry are preferred hydrostatic modeling technology.