The Process and Advantages of Zinc Alloy Die Casting

Zinc Alloy Die Casting Process

Die Casting Mold Making

The design and manufacturing of die casting molds are crucial steps in zinc alloy die casting. The design process needs to consider factors such as the shape, size, and precision requirements of the product to ensure that the mold can meet production needs. The manufacturing process requires strict precision control to guarantee the quality of the mold.

Production of Die Castings

Material Selection

Choosing the right zinc alloy material is key to ensuring the quality of zinc alloy die castings. Generally speaking, the main additives in zinc alloy include aluminum, copper, magnesium, etc. Different additives will affect the performance of the zinc alloy.

Melting

Heat the zinc alloy material to a molten state to prepare for die casting. The melting process requires attention to temperature control, the use of covering agents, refining agents, and other issues.

Die Casting 

Inject the molten zinc alloy liquid into the mold under high pressure to form it. The zinc alloy die casting process requires control of parameters such as pressure, speed, and temperature to ensure the quality of the castings.

Trimming

Remove the castings formed by die casting from the mold, and eliminate excess gates and flashes.

Surface Treatment

Tapping

Perform tapping on castings to facilitate subsequent assembly and use.

Deburring

Remove burrs and sharp edges on the surface of the castings to improve surface quality.

Polishing

Make the surface of the castings smooth through polishing, improving appearance quality.

Surface Treatment

According to customer requirements, the castings can be electroplated, sprayed, painted, etc., to enhance corrosion resistance and aesthetics.

Laser Engraving

Perform laser engraving on castings to mark product identifications and patterns.

Quality Inspection and Shipment

Dimensional Measurement

Measure the dimensions of the castings to ensure they meet design requirements.

Quality Testing

Test the mechanical properties, corrosion resistance, etc., of the castings to ensure the quality.

Appearance Inspection

Perform a full inspection of the appearance of the castings to ensure the surface is free of defects and flaws.

Packaging

Pack the qualified castings for transportation and storage.

Advantages of Zinc Alloy Die Casting

Flexible Surface Treatment

The chemical properties of zinc alloy are unstable, easily oxidized in the air. If the castings are exposed, oxidation will affect their appearance, requiring surface treatments such as electroplating or baking paint. For example, external products like instrument cases, toys, lighting fixtures, etc., to maintain aesthetics, are usually surface-treated. However, if the zinc alloy castings are used for mechanical parts without special performance requirements, surface treatment may not be necessary.

Wide Range of Applications

Zinc alloy die casting is suitable for many fields, including instruments, toys, lighting fixtures, decorations, electrical components, automotive parts, electromechanical parts, mechanical parts, etc. Zinc alloy die-cast products can be seen in both daily household items and industrial components.