Why Squeeze Casting for Power System Components?

Power system components must meet demanding requirements: high electrical conductivity, excellent thermal management, mechanical strength, and long-term reliability. Squeeze casting is particularly well-suited for these applications because it produces dense, near-net-shape parts with superior mechanical properties and minimal porosity.

Unlike conventional casting methods that can leave internal porosity compromising electrical and thermal performance, squeeze casting applies high pressure during solidification. This eliminates gas porosity and shrinkage voids, resulting in components that can reliably handle electrical loads and thermal stress.

Key Benefits of Squeeze Casting for Power Applications

High Density, Low Porosity – Pressure-assisted solidification eliminates internal voids that can cause electrical resistance, thermal hotspots, and mechanical failure.

Superior Thermal Conductivity – Squeeze-cast aluminum and magnesium alloys achieve excellent heat dissipation, making them ideal for motor housings, heat sinks, and power electronic enclosures.

Good Electrical Conductivity – Alloy optimization and controlled solidification preserve electrical conductivity while maintaining mechanical strength.

Near-Net Shape – Reduces machining requirements and material waste, with good surface integrity.

Heat Treatable – Squeeze castings respond well to T5 and T6 heat treatments, enabling further strength enhancement for structural applications.

Power System Components We Produce

Transmission Equipment Components

Substation and transmission equipment require high-temperature mechanical performance. Squeeze-cast heat-resistant aluminum alloys exhibit significantly improved tensile strength, yield strength, and elongation at elevated temperatures compared to gravity castings.

Motor Housings and Enclosures

Electric motor housings require a combination of structural integrity, thermal management, and pressure tightness. Squeeze casting eliminates shrinkage porosity and improves gas-tightness, ensuring reliable performance in demanding applications.

Electrical Enclosures and Housings

Electrical housings require thermal efficiency and EMI shielding. Squeeze casting can use specialized alloys like AlSi9Mg and produce high-density, void-free structural parts.

Heat Sinks and Thermal Management Components

Squeeze-cast composites with diamond or other high-conductivity materials can achieve thermal conductivity approaching 650 W/m·K.

High-Pressure Electrical Feed-Throughs

Squeeze casting enables the integration of insulating materials into metal components, producing hermetically sealed electrical connections.

Technical Advantages

Proven Process Control

Best practice parameters for motor housing squeeze casting include:

• Pouring temperature: 680°C

• Mold temperature: 280°C

• Specific pressure: 110 MPa

• Injection speed: 0.1 m/s

• Holding pressure: 30 seconds

Alloy Expertise

We work with a range of alloys suitable for power system applications:

• Aluminum alloys: A380, A356, ADC10, AlSi9Mg, and heat-resistant aluminum alloys for high-temperature applications

• High-conductivity alloys optimized for simultaneous strength and electrical performance

Quality Assurance for Power System Components

• Porosity inspection – X-ray or ultrasonic testing to verify density

• Electrical conductivity testing – Verification of electrical performance

• Thermal performance validation – Heat dissipation and thermal cycling testing

• Gas-tightness testing – Pressure and leak testing for sealed housings

• Dimensional inspection – CMM verification of critical features

• Material certification – Full traceability and alloy verification

Why Choose Us for Your Power System Castings?

Specialized Expertise – We understand the unique requirements of power system applications, from transmission equipment to motor housings.

Integrated Services – Complete in-house capabilities: die design, squeeze casting, CNC machining, surface finishing, and assembly.

Quality Certification – IATF 16949 and ISO 9001 certified quality management systems.

Proven Track Record – Experience in manufacturing components for electrical transmission, motor, and power electronic applications.

Get Started on Your Power System Component Project

We invite you to submit your power system component designs for a free feasibility review. Our engineering team will recommend the optimal alloy, squeeze casting parameters, and finishing process for your specific application – whether you need transmission equipment components, motor housings, or electrical enclosures.