How you produce high-quality aluminum alloy die castings?

How We Produce High-Quality Aluminum Alloy Die Castings

Advanced Die Casting Machines

Our aluminum alloy die casting machines are the cornerstone of our production process, enabling us to achieve various characteristics essential for high-quality castings. By understanding the features and technical specifications of these machines, we can select the appropriate equipment and optimize our casting parameters to ensure consistent, top-quality production.

Comprehensive Design and Machine Selection

The design of die casting molds is closely linked to the selection of the die casting machine. To ensure the reliable production of high-quality castings, we must:

• Be familiar with the characteristics and specifications of the die casting machines.
• Use design calculations to choose the suitable die casting machine, ensuring smooth production.

The selection of aluminum alloys is crucial for both their excellent mechanical properties and the reduction of vibrations during the casting process. These alloys are ideal for portable mechanical tools and equipment, such as construction nailers, to minimize the adverse effects of vibrations on operators.

Aluminum Alloy Die Casting Process Flow:

1. Casting System and Overflow System Requirements:

   • For horizontal die casting machines, the position of the gating system and overflow system must be precisely determined. Generally, the central position of the mold sleeve should be offset from the middle of the mold body.

2. Mold Cooling and Heating System:

   • Ensure adequate spatial positioning for the cooling and heating systems of the mold.

Aluminum Alloy Die Casting Mold Structure:

• Guiding and Reset Components: Install necessary guiding components, reset mechanisms, and connecting screws in their designated positions.

• Side Core-Pulling Mechanism: Allow adequate space for the movement of the side core-pulling mechanism in the die casting mold.

Surface Treatment of Aluminum Alloy Die Castings:

1. Electroplating:

   • Electroplate aluminum alloy die castings in a solution containing the metal to be plated. The casting acts as the cathode and the metal to be plated as the anode, resulting in a bonded metal film on the casting surface.

2. Painting:

   • Used for decoration, protection, and marking. Painting hides surface defects and adjusts surface friction. Common issues such as orange peel, pinholes, dullness, oil spots, and oil splashes can be managed by adjusting paint concentration, application amount, and maintaining surface cleanliness, following strict operational guidelines.

3. Chemical Film Treatment:

   • Chromate treatment creates a tough film in various colors on the casting surface, enhancing corrosion resistance and improving paint adhesion and appearance.

4. Electrostatic Spraying:

   • Create a high-voltage electrostatic field between the spray gun, nozzle, and casting. The atomized paint particles become negatively charged and move towards the positively charged casting surface, forming a uniform paint film. This method provides a protective layer with a smooth, attractive finish and excellent corrosion resistance.

5. Impregnation Treatment:

   • Under vacuum and pressure conditions, liquid impregnants penetrate the micro-pores of the casting. Upon curing, these seal the pores, enhancing the casting's integrity.

By adhering to these meticulous processes and leveraging advanced techniques, we ensure our aluminum alloy die castings meet the highest standards of quality, durability, and precision.