The key technical characteristics and control points in the die casting melting process involve the selection and proportion of alloys, precise control of the melting process, mold design and process control, gate design, the application of computer-aided design and numerical simulation technology, and strict quality control throughout the process.
Alloy selection
The selection and proportion of die casting alloys are one of the key factors affecting the quality of die castings. Different alloys have different physical and chemical properties, which directly affect the performance and quality of die castings.
Melting process control
The temperature, time, atmosphere and other conditions in the melting process have a direct impact on the quality of the alloy. Controlling these parameters can ensure the uniformity and purity of the alloy, thereby improving the overall quality of the die casting.
Mold design and process control
The design of the mold directly affects the forming quality and precision of the die casting. Including the structural design of the mold, the design of the pouring system, the layout of the cooling and heating system, etc., all needs to be carefully planned to ensure the quality of the product in the high stress area.
Design of gate section and proportion
Reasonable gate section and proportion design is essential to achieve high-quality die castings. This is related to the filling efficiency and pressure distribution of the molten metal, which in turn affects the internal quality and surface quality of the die-casting.
Application of computer-aided design and numerical simulation technology
The use of computer-aided design (CAD) and numerical simulation technology can predict and analyze possible problems in the die-casting process design stage, optimize the design scheme, reduce the cost of trial and error, and improve production efficiency and product quality.
Quality control methods
In the entire die casting production process, from smelting, die casting to cleaning, finishing and other processes, strict quality control methods are required to ensure that the quality of the final product meets the requirements.