Magnesium Alloy Thixomolding Die Casting Uav Parts

Brief introduction of die-casting magnesium product technology

The die-casting process is the process of unifying pressure, speed and time by using the three major elements of machine, mold and alloy. For metal thermal processing, the existence of pressure is the main feature of the die casting process that distinguishes it from other casting methods. Die casting is a fast-growing special casting method with less cutting and no cutting in modern metal processing technology. It is the process of filling the mold with molten metal at high pressure and high speed, and crystallizing and solidifying under high pressure to form a casting. High pressure and high speed are the main characteristics of die casting. The commonly used pressure is tens of megapascals, the filling speed (inner gate speed) is about 16-80 m/s, and the time for the liquid metal to fill the mold cavity is extremely short, about 0.01-0.2 seconds. Because the products produced by this method have the advantages of high production efficiency, simple process, high tolerance level of castings, good surface roughness, high mechanical strength, can save a lot of mechanical processing procedures and equipment, and save raw materials, etc., so it has become a An important part of the foundry industry.

The die-casting process is a process of organically combining the three major elements of die-casting machine, die-casting mold and alloy and using them comprehensively. The process of metal filling the cavity during die casting is a process of unifying process factors such as pressure, speed, temperature and time. At the same time, these technological factors influence each other, restrict each other, and complement each other. Only by correctly selecting and adjusting these factors to make them coordinated can the expected results be obtained. Therefore, in the process of die-casting, not only attention should be paid to the manufacturability of the casting structure, the advanced nature of the die-casting mold, the performance and structure of the die-casting machine, the adaptability of the die-casting alloy selection and the standardization of the melting process; more attention should be paid to pressure, temperature and time And other process parameters play an important role in casting quality. In the die-casting process, attention should be paid to effective control of these parameters.

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