According to the different raw materials used in die casting, die casting products can be divided into aluminum alloy casting, magnesium alloy casting, zinc alloy casting, copper alloy casting and other categories. Aluminum alloy is widely used in household appliances, automobiles, electronic appliances, office equipment, machinery and other accessories because of its lightweight material, strong wear resistance, high mechanical strength, good heat transfer and conductivity, and can withstand high temperature.
(1) Scale and capital barriers
As a capital-intensive industry, the die-casting industry has a large fixed asset investment quota, a long construction cycle, and a long payback period for the initial construction, which requires a higher investment cost. This requires enterprises to have a high capital strength, invest a large amount of money for the construction of plants, equipment and so on. In the fierce market competition of die casting industry, only enterprises with strong cost control ability, technology research and development ability and scale advantages can survive.
(2) Technical and quality barriers
As a technology-intensive industry, the die casting industry has very strict requirements on the mold, die casting equipment and technology, finishing and other processes in the production process of casting products. Moreover, downstream customers (such as clean electrical appliances and automobile manufacturers) have increasingly high requirements on the material properties, shape, processing accuracy and weight of products. This requires the die casting enterprises to have a certain basic material research ability, mature casting technology, high level of mold development and manufacturing, and to be able to timely improve the casting process and mechanical processing technology according to the differences in products.
(3) Market entry barriers
The traditional die casting industry competition disorder, good and bad are uneven, there are a large number of small die casting enterprises in the market. In order to prevent the blind construction of enterprises, avoid the disorderly competition in the industry, and curb the disorderly entry of small-scale enterprises into the industry, the Ministry of Industry and Information Technology launched the “Foundry Industry Access Conditions” in May 2013. This document from the enterprise construction and layout, production technology, production equipment, enterprise scale, product quality, energy consumption, environmental protection, occupational health and safety and labor protection, personnel quality and other aspects of the foundry industry access conditions.
The extension of downstream applications in the industry
(1) Automobile industry
As the largest automobile consumption market in the world, China has witnessed a steady growth in automobile sales, while the trend of automobile lightweight is also advancing.
On the one hand, as the world energy problem has become more and more serious in the past 20 years, 100km fuel consumption has become an important reference index for the general population to choose a car, and reducing the weight of the body to reduce reactive power loss has become the consensus of major automobile manufacturers. On the other hand, the battery range of new energy vehicles is one of the main reasons to trouble their promotion. Reducing the body weight and increasing the range is an important part of enhancing the user experience of new energy vehicles.
Because of its low density and high performance ratio, aluminum alloy greatly reduces the weight of the body, and has outstanding safety performance, it has become a new body material recently promoted by automobile manufacturers. The application proportion of aluminum alloy in car body is showing a significant upward trend.
Engine system die casting: engine cylinder block, cylinder head, intake pipe, water pump housing, engine housing, starter housing, filter base, engine bracket, engine support, distributor seat, carburetor, timing sprocket cover, oil pan.
Transmission system die casting: transmission housing, clutch housing, connecting filter plate, shift fork, transmission box shift end cover.
Chassis walking system die casting: beam, upper and lower walls, steering housing, brake pump housing, brake pliers, wheels, control fork, etc.
Other system parts: clutch pedal, steering wheel, brake pedal, steering knuckle, engine frame, ABS system parts.
At present, the technology of aluminization rate in automobile is still relatively backward. Currently, the use of aluminum in automobiles in developed countries has reached 180kg, and the aluminization rate reaches 15%. However, the use of aluminum in automobiles in China is far from that in foreign countries, and the average amount of aluminum used is only 60kg, and the aluminization rate is less than 5%. Therefore, the development prospect of aluminum alloy market for automobile is very broad.
(2) LED industry
In recent years, China advocates environmental protection and energy saving, and has issued a series of policies and regulations to support the development of environmental protection industry. Among them, China actively promotes the LED street lamp industry. In 2009, China launched the “10 000 units in 10 cities” program, which was later expanded to 2 million units in 50 cities.
With the continuous maturity of LED lighting technology, and benefiting from the government’s key project procurement, LED street lighting construction continues to promote and other favorable factors, the demand for LED street lighting has shown a continuous upward trend, greatly stimulating the LED street lighting market.
Usually LED street lamps will use appropriate die-casting lamp boxes according to their size. The die-casting parts used for a single LED lamp range from tens to hundreds of yuan. With the continuous promotion of LED street lamps, LED street lamps produced by aluminum alloy die-casting method have great market demand potential.
(3) Clean electrical appliance industry
With the rapid growth of China’s economy, the improvement of people’s living standards and the change of young people’s cleaning habits, the demand for vacuum cleaner market is also increasing rapidly, and the whole market has a broad development prospect.
According to data statistics, the population of developed countries and regions in the world is about 1 billion, and every 20 people in these countries and regions buy a large horizontal or vertical vacuum cleaner every year, with an average annual market sales of about 50 million units. Under the background of manufacturing industry shifting to China, the production of international vacuum cleaner giants is highly dependent on Chinese enterprises, mainly through OEM/ODM mode by domestic vacuum cleaner enterprises for OEM production, China has become a large country in vacuum cleaner manufacturing and export.
With the development of the whole clean electrical industry, vacuum cleaners are constantly optimized and upgraded. At present, in Europe and the United States and other developed countries and regions in the market, steam vacuum cleaner because of its high temperature dry steam antivirus, deep cleaning and other advantages, is gradually replacing the traditional vacuum cleaner. As the core component of steam vacuum cleaner, the market demand of steam heater in aluminum alloy die casting products is booming.
In conclusion, the downstream application of aluminum alloy die casting continues to extend to automobile, LED street lamp, clean electrical appliances and other industries, the aluminum alloy die casting industry will usher in new development opportunities