The automobile industry is one of the key customers of China's foundry industry chain. With the development trend of China's economic development and the improvement of people's living standards, the parallel line of China's automobile sales has increased, which has promoted the development trend of China's casting industry chain, especially the aluminum alloy casting industry chain, to a large extent.

With the increasing appeal of new energy for automobiles in China, the upgrading and upgrading within the automobile manufacturing industry are gradually being implemented, and aluminum alloy die castings are gradually replacing gray iron castings, which stimulates the demand for aluminum alloy castings. Demand continues to rise. In addition, with the rapid development of the aluminum die-casting industry in the world, the demand for aluminum alloy castings in various fields is also expanding, and the development of the casting industry chain is very promising.

Chinese economy maintains a trend of rapid development. Because the differences between resources and the natural environment are getting worse day by day, according to the regulations of ecological civilization construction, green economy and green manufacturing have become the key basic national conditions for the sustainable development concept of social and economic development. Authoritative experts emphasized that the range of aluminum die casting, that is, the forging and forming process of rare metals under various working pressures such as low pressure casting and squeeze casting, has a total output value of about 1.5 million tons.

The manipulation of the ambient temperature of die castings is critical to the production of castings. Uneven or inappropriate temperature of the grinding tool will also cause unstable specifications of the castings, and the deformation of the castings will be pushed out during processing, resulting in defects such as hot working pressure, mold sticking, surface dents, internal shrinkage porosity and thermal bubbles. When the mold temperature is very different, it will cause different levels of harm to the independent variables in the production cycle, such as filling time, cooling time and painting time.

The technical characteristics of force casting of castings are:

• There are few vent holes inside the casting, which can be quenched and tempered. The compressive strength of the product after quenching and tempering treatment can be greatly improved, even exceeding that of aluminum die-casting products. There are few air vents inside the casting.
• The product has low density. With liquid weight forming, the high density of the commodity is lower than that of aluminum die casting, and its compressive strength is slightly weaker, but its tensile strength is lower than that of the commodity high density.
• The surface smoothness of the product is not high. It is very easy to produce dents similar to shot blasting and rust removal on the surface of cast products after they are refrigerated and folded.
• Slow filling and low productivity. Its productivity is only about a quarter of that of high pressure forging, resulting in high production costs.
• The service life of the abrasive tool is longer than that of aluminum die casting, and the abrasive tool is low-cost.
• The processing technology is relatively simple.
• It is not suitable for the production of thick-walled parts.

Because the metal material copper, zinc, aluminum and aluminum alloy profiles have very good fluidity and ductility, and the forging production and processing are forged in an aluminum die-casting machine with working pressure, aluminum alloy die-casting can make a variety of complex It can also make high precision and smoothness, which greatly reduces the machining volume of castings and the forging capacity of copper, zinc, aluminum or aluminum alloy profiles of metal materials, which not only saves electricity Engineering, metal composite materials, also greatly save labor costs; and copper, zinc, aluminum and aluminum alloy profiles have high-quality heat transfer, small proportions and high processability.

Conclusion

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