People engaged in the die-casting industry know that aluminum alloy die-casting molds are complex equipment that must complete multiple functions simultaneously. Its appearance has a significant impact on the size of aluminum alloy die castings. The fixed or movable core enhances the sensitivity of aluminum alloy die-casting, allowing for the production of complex and precise parts. The geometric shape of the runner mouth affects the filling of the mold. The thermal conditions of aluminum alloy die-casting molds determine the solidification, microstructure, and quality of the parts. In mass production, the thermal conductivity of the mold determines the cycle time. Therefore, it can be said that there are many factors that affect the aluminum alloy die-casting process.
1. Aluminum alloy die-casting is mainly affected by factors such as injection pressure, injection speed, filling time, and mold temperature in production. These elements influence and constrain each other, and adjusting one element will cause corresponding process changes. Therefore, it is important to choose the correct process parameters.
2. The most commonly used in the die-casting industry is aluminum alloy die-casting, which cannot be compared with other alloys during use. Due to the different components in aluminum alloy die-casting, the physical and chemical functions of the alloy exhibited during use are different.
3. The crystallization of aluminum alloy die-casting during manufacturing is also different. It is necessary to choose a reasonable casting method based on the characteristics of its aluminum alloy during application, in order to effectively prevent casting defects.
4. The process of aluminum alloy die-casting is usually understood as filling the mold in application. The most prominent performance in the cooling and crystallization process of equipment is the comprehensive utilization of those functions. These characteristics of aluminum alloys depend on the composition of the alloy, but are also related to casting elements, alloy heating temperature, complexity of the casting mold, gating system, gate shape, etc.
5. The activity of aluminum alloy die casting mainly refers to the filling of the mold in the alloy liquid, and the magnitude of its activity effectively determines whether the alloy can cast complex castings to a certain extent. The activity of eutectic alloys in aluminum alloy die casting is the best.
In fact, there are many factors that affect the aluminum alloy die-casting process, mainly including composition, temperature, and solid particles containing metal oxides, compounds, and other pollutants in the alloy liquid. However, the fundamental internal factors are pouring temperature and pouring pressure. In the theory of aluminum alloy die-casting, when the alloy has been determined, in addition to strengthening the melting process, it is also necessary to improve the casting process, increase the pouring temperature without affecting the quality of the casting, and ensure the activity of the alloy.
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