What types of die-casting molds are classified according to their runner system?

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Die Casting Molds Classified by Gating System

The gating system is the channel through which molten metal enters the mold cavity, and its design is crucial for product quality.

Cold Chamber Die Casting Molds

Characteristics: The injection chamber (or shot sleeve) and plunger are not immersed in the molten metal bath. For each shot, molten metal is ladled from a holding furnace into the injection chamber before being injected.

Application: Primarily used for die casting high-melting-point metals such as aluminum alloys, magnesium alloys, and copper alloys.

Hot Chamber Die Casting Molds

Characteristics: The injection chamber and plunger are permanently immersed in the molten metal of a gooseneck, which is itself submerged in a heated holding pot.

Application: Primarily used for die casting low-melting-point metals such as zinc alloys, lead alloys, and tin alloys. This method offers high production efficiency and is easily automated