Description:In the die-casting market, the automotive industry occupies an extremely large share. According to statistics from relevant parties, although the automobile industry accounts for different shares due to different labor structures in different countries, the above-mentioned proportion has always... moreIn the die-casting market, the automotive industry occupies an extremely large share. According to statistics from relevant parties, although the automobile industry accounts for different shares due to different labor structures in different countries, the above-mentioned proportion has always ranked first. From the end of the 20th century to the beginning of the 21st century, the proportion of die-casting parts in the automotive industry was about 48-80%. For example, Australia accounts for 80%, Japan accounts for 79%, Spain accounts for 65%, China accounts for 64.5 (including cars and motorcycles), Germany accounts for 61%, India accounts for 60%, Canada accounts for 49%, and the United States accounts for 48%. According to recent reports, this proportion in the United States has risen to about 75%. The automobile industry occupies such a huge share in die castings, which shows its important position in the die casting industry. As far as China is concerned, this ratio has remained between 6 5% and 7 5% in recent years (including vehicles, motorcycles and other transportation). As far as the automotive industry is concerned, this proportion has also increased significantly year by year.
As for the number of die-casting parts used by each vehicle, according to reports (using US data as an example), in the early 1980s, the average weight of each vehicle was in the range of 1315-1542KG, and then declined year by year. Taking the consumption of aluminum alloy castings for each vehicle as an example, it is gradually increasing, with an average of 34kg per vehicle in 1980, 68KG in 1990, 1113kg in 2000, and 175KG in 2009. Aluminum alloy die castings accounted for 65% of all aluminum % Above my casting.
In addition, in addition to aluminum alloy die castings, zinc alloys, magnesium alloys and copper alloy die castings are also used on automobiles, so the number of die castings per vehicle is conceivable. The die casting industry is closely related to the automotive industry.
Looking back on the development history of the world's automotive industry, in the design and application of various components, the use of die-casting parts is very important, especially complex, large, and important parts. These parts are usually listed as main parts. Research Topics. This not only shows that the die casting industry is irreplaceable in this respect, but also highlights that the development of the die casting industry is largely based on the automotive industry. In other words, the die casting industry is one of the important pillar industries of the automotive industry.
Nowadays, people have higher and higher demand for cars, higher and higher performance, lower pollution, and lower energy consumption. There are two ways to reduce the energy consumption of automobiles: one is to improve the power system; the other is to reduce the weight of automobiles, that is, quantify the number of automobiles. The most effective way to achieve weight reduction is to use lightweight materials to make auto parts. In the 1970s, aluminum alloy castings (including various casting methods) were widely used in various countries to replace castings as important parts of automobiles.
After that, with the gradual tightening of emission regulations in European and American countries, the requirements for energy saving and emission reduction in the automobile manufacturing industry are becoming higher and higher. At this time, finding a lighter material than aluminum alloy die-casting parts and manufacturing important auto parts has also become one of the research and development directions. It is worth mentioning that in the past 10 years, some leading manufacturers in the automotive industry have put forward the idea of ​​using magnesium alloy to manufacture more parts, and have achieved certain results.
It is worth mentioning that most of the high and new technologies in the development and innovation of the die casting industry are developed around the high requirements and new requirements of the automotive industry, including various required components on various systems such as electricity, transmission, steering, and body , Frame, instrument, etc. Some of these components are structural components, load-bearing components, safety components and decorative components.
The most striking among them are: the whole set of die-casting technology using aluminum alloy 390 die-casting all aluminum cylinder block, giving up the original method of casting cast iron sleeves to enter the aluminum alloy die-casting cylinder block; using new ultra-low iron content of new aluminum alloy SF36 manufactures automotive body frame connectors, changing the new field of titanium alloy die casting technology. Aluminum alloy die-casting diesel engine casings have been published in recent years, which is the prelude of die-casting into the field of diesel engines.
Some achievements have been made in reducing the weight of... less
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