Zinc alloy die casting is a high-pressure metal casting process where molten zinc alloy (typically Zamak or ZA series) is injected into precision-engineered steel molds. The process involves:
Melting: Zinc alloy is heated to approximately 400°C in a furnace.
Injection: Molten metal is injected into the mold cavity under high pressure.
Cooling: The material rapidly solidifies into the desired shape.
Ejection: The finished part is ejected from the mold.
Trimming: Excess material (flash) is removed for a clean finish.
This method ensures high production efficiency, exceptional dimensional accuracy, and repeatability for complex geometries.
Advantage
--High Precision: Capable of producing tight tolerances (±0.05 mm) and intricate details.
--Excellent Surface Quality: Naturally smooth surfaces reduce the need for extensive post-processing.
--Cost-Effectiveness: Low melting point reduces energy consumption; high production speeds lower per-unit costs.
--Superior Mechanical Properties: Combines high strength, hardness, and impact resistance, even in thin-walled sections.
--Recyclability: Zinc alloys are 100% recyclable without degradation of properties.
--Corrosion Resistance: Suitable for harsh environments with proper coatings.