Die-Casting Die: The "Precision Founder" for Metal

Die-casting dies are specifically used for high-pressure die-casting processes. They involve injecting molten non-ferrous metals like aluminum alloy, zinc alloy, or magnesium alloy into a precision die cavity at high speed and pressure, followed by rapid cooling to form high-strength, dense metal parts.

Die-casting dies operate under extreme conditions of high temperature, high pressure, and thermal cycling. Therefore, they must be made from high-quality hot-work tool steel (e.g., H13) and possess excellent thermal fatigue resistance, thermal conductivity, and toughness. Their structure is complex, typically including the molding section, core-pulling mechanism, overflow and venting system, and efficient cooling channels.

Driven by lightweight trends, die-casting dies are developing towards larger size, integration (e.g., automotive structural parts), and ultra-high precision. The application of new technologies like vacuum die-casting and precise mold temperature control further improves casting quality and die life, supporting advanced manufacturing sectors like new energy vehicles and 5G communications.