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Analysis of the cause of low -pressure cast aluminum alloy wheel crack formation

Analysis of the cause of the formation of low -voltage cast aluminum alloy wheels, which affects various factors that affect the cracks, such as casting structure, process parameters, mold temperature, etc., through reasonable control and adjustment of these factors to eliminate the effects of cracks on wheel casting. So as to improve the economic benefits of enterprises.
Aluminum alloy wheels have many steel hubs that cannot be compared with, so aluminum alloy wheels have begun to be widely used on cars, motorcycles and other vehicles. By 2002, the loading rate of the car aluminum alloy wheels in my country has been close to 45%. Due to the high quality requirements of car hubs, the structure itself is suitable for low -voltage casting, and the demand is large. Therefore, it has greatly promoted the development of low -pressure casting technology. At present, low -voltage casting has become the main process of the production of aluminum alloy wheels. Most of the domestic aluminum alloy wheel manufacturing enterprises are produced by this process.
Low -voltage casting can achieve high mechanization and automation, which not only increases productivity (10 ~ 15/h), but also reduces human factors that are not conducive to the production process, increase the rate of finished products, and greatly reduce the labor intensity of workers. However, the quality of low -voltage casting is affected by factors such as process schemes, process parameters, mold structures, and artificial operations, as well as the interaction between them, and the design of any link is unreasonable or improper operation may cause defects in low -pressure castings. in,
The generation of aluminum alloy wheel cracks is an important factor affecting the production cost and production efficiency of enterprises, and wheel cracks are major hidden dangers of car safety. Therefore, the discussion of the cause of the cracking of the hub of low -voltage casting aluminum alloy is particularly important.