Views: 0 Author: Site Editor Publish Time: 2025-07-31 Origin: Site
As the automotive industry moves towards electrification, intelligentization, and lightweighting, the innovation and refinement of every component is crucial. Aluminum die castings and zinc alloy die castings are indispensable parts in modern automotive engineering.
Aluminum alloys, due to their excellent strength-to-weight ratio and superior thermal conductivity, have become the preferred material for automotive lightweighting.
Core Application Areas and Components:
1. Powertrain Systems:
New Energy Vehicles: Motor housing, battery pack housing, electronic control system heat sink housing.
Traditional Gasoline Vehicles: Engine block, cylinder head, transmission housing, oil pan.
2. Structural Components and Body:
Body Structural Components: A/B pillars, longitudinal beams, door frames, shock absorber towers.
Chassis Systems: Steering knuckles, control arms, subframe.
Why Choose Aluminum Die Casting?
Significant Lightweighting: Aluminum alloys have only 1/3 the density of cast iron, making them key to achieving weight reduction, energy efficiency improvement, and increased driving range for electric vehicles.
Excellent thermal conductivity: For motors, electronic controls, and battery systems, efficient heat dissipation is crucial for ensuring their performance and longevity.
High strength and rigidity: Through optimized structural design and die-casting processes, aluminum die-castings meet the stringent strength and rigidity requirements of critical automotive components.
Good formability: One-piece die-casting technology integrates multiple parts into a single complex component, reducing welding points, improving structural integrity, and lowering manufacturing costs.
Zinc alloys, with their high strength and hardness, excellent casting precision, and wear and corrosion resistance, play a key role in automotive safety and functional systems.
Core application areas and components:
1. Safety and locking systems: Core structural components of door locks, trunk locks, and seat adjustment mechanisms.
Seat belt buckles and internal components of airbag systems.
2. Electronic and electrical systems: Sensor housings, connectors, and terminals.
Electromagnetic shielding housings for various ECUs (Electronic Control Units).
3. Interior and Exterior Trim Components: Door handles, window cranks, decorative badges, rearview mirror brackets
Why Choose Zinc Alloy Die Casting?
Superior Strength and Wear Resistance: Zinc alloys possess mechanical properties approaching or even exceeding those of some aluminum alloys, making them ideal for components subjected to frequent friction and impact.
Extremely High Dimensional Stability: Zinc alloy die castings offer high forming precision with virtually no shrinkage, making them ideal for manufacturing small, precision parts requiring stringent tolerances.
Excellent Surface Finishing Capabilities: Zinc alloy substrates are easily electroplated and painted, achieving high-end metallic textures such as chromium and gold, meeting the aesthetic demands of automotive exterior components.
Superior Electromagnetic Shielding Performance: Provides reliable protection for the increasing number of in-vehicle electronic devices.
Faced with profound changes in the automotive industry, aluminum die casting and zinc alloy die casting technologies will see even broader development prospects.
1. Integrated Die Casting of Ultra-Large Structural Components: Represented by aluminum die casting, future vehicle chassis, battery pack trays, and lower body will increasingly utilize ultra-large integrated die casting. This will significantly simplify the manufacturing process, reduce vehicle weight, and improve overall vehicle rigidity, representing our core development direction.
2. Integrated Innovation of Materials and Processes: Advanced processes such as high-vacuum die casting and squeeze casting will further enhance the density and mechanical properties of castings, enabling their application in more critical load-bearing components. Simultaneously, the development of new high-strength and high-toughness zinc-aluminum alloys will expand their application boundaries.
3. Functional Integration: Die-cast parts will no longer be merely structural components. We will integrate cooling pipes, sensors, and circuits directly during the die casting process through insert injection molding and runner design, achieving "functional-structural" integration.
4. Sustainable Manufacturing: We are committed to increasing the proportion of recycled metals in raw materials and optimizing production processes to reduce energy consumption, contributing to the automotive industry chain's carbon neutrality goals.
