Aluminum alloy die-casting is a part of working pressure forging. It is a working pressure casting mechanical aluminum die-casting machine equipped with a casting abrasive, and pours the heated aluminum or aluminum alloy profiles into the feed port of the aluminum die-casting machine. Through the aluminum die-casting of the aluminum die-casting machine, the aluminum parts or aluminum alloy profile parts with the limited appearance and specifications of the abrasive tool are cast, and such parts are generally called aluminum alloy die-casting. Aluminum alloy die-casting has different names in different regions, such as aluminum alloy die-casting parts, die-casting aluminum parts, die-casting aluminum parts, die-casting aluminum, aluminum alloy die-casting, aluminum alloy casting parts, etc.

Wide application of aluminum alloy castings

Because metal aluminum and aluminum alloy profiles have very good fluidity and ductility, and forging production and processing are forged in an aluminum die-casting machine with working pressure, aluminum alloy die-casting can make a variety of more complicated appearances, and can also achieve higher precision and smoothness, and then greatly reduce the machining volume of castings and the forging capacity of metal aluminum or aluminum alloy profiles, not only saves power engineering, metal composite materials, but also greatly saves, Therefore, aluminum alloy die-casting is widely used in the automobile industry, gas turbine manufacturing, motorcycle manufacturing, motor manufacturing, gasoline pump manufacturing, transmission system machinery and equipment manufacturing, instrumentation, garden landscape cleaning, construction engineering, Building decoration design and other manufacturing industries. And aluminum and aluminum alloy profiles have high-quality heat transfer, small proportions, and high process performance.

How to avoid blisters

In the production process, there are sometimes shortcomings such as sand holes. To prevent the air outlet sand holes in the aluminum alloy die-casting process, the following summary is cast:

• Ensure the refining and degassing quality of aluminum alloy profile smelting, use a good refining agent and degassing agent to reduce the air supply in the aluminum water, and immediately eliminate metal oxides such as liquid level sludge and foam, and avoid being brought into the vapor again. into the casting;
• Select a good release agent, the release agent used should not cause vapor in aluminum die-casting, and have excellent mold-making characteristics;
• Ensure that the exhaust pipe of the abrasive tool is smooth and not blocked, and the exhaust pipe is smooth, to ensure that the vapor in the abrasive tool is completely discharged, especially when the aluminum water converges, the safety channel of the exhaust pipe must be smooth;
• Adjust the main parameters of aluminum die-casting, and the filling rate should not be too fast to avoid air entrainment;
• In the design of products and stamping dies, attention should be paid to the application of core pulling and refrigeration, and try to avoid the defects of excessive wall difference;
• For the vent holes that often appear in fixed positions, it is necessary to improve the abrasive tool and the design scheme.

In general, in aluminum die-casting companies, if the above six countermeasures are implemented, the damage rate of aluminum die-casting products of aluminum alloy profiles can be significantly reduced, and the compliance rate of products will be significantly improved.

Conclusion

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