What materials are used in LED street light die casting?

Common Materials for LED Street Light Die Casting

1. High-strength aluminum alloys

These alloys are specially formulated with varying proportions of elements such as silicon, magnesium, and copper, combining good fluidity with high strength to meet the dual requirements of lightweight and durability for street light housings.

2. Aluminum alloys with improved thermal conductivity after heat treatment

Through solution treatment and aging processes, the thermal conductivity of the material can be significantly improved, aiding in heat dissipation for LED chips and extending their lifespan.

3. Aluminum alloys compatible with surface treatments

To achieve corrosion resistance, oxidation resistance, and aesthetically pleasing spraying or anodizing, alloy grades containing appropriate amounts of iron and manganese are often selected to ensure the adhesion and uniformity of subsequent surface treatments.

4. Materials Compliant with International Quality Systems

Raw materials certified by the IATF16949 quality management system are used to ensure product quality compliance in markets such as Europe and the United States, and to meet customers' stringent reliability requirements.

How to Design an LED Street Light Die Casting Mold?

Design Considerations for LED Street Light Die Casting Molds

1. Preliminary Geometric Modeling and Parting Analysis (CAD/PRO/E)

Using PRO/E (now Creo) to complete the 3D model of the lamp's shape, the parting line, draft angle, and gate layout are automatically generated to ensure smooth demolding of the casting after solidification without stress or deformation.

2. Optimization of the Sprue and Runner System

Flow analysis of the sprue, runner, and risers is performed using numerical simulation (CAE) to avoid defects such as gas trapping and cold closure; for thin-walled lamp housings, diversion or layered casting is especially important to ensure complete metal filling.

3. Coordinated Design of Heat Treatment and Cooling Systems

Integrating cooling circuit layouts during the mold design phase, combined with material heat treatment processes (such as solution treatment and aging), achieves rapid and uniform cooling, improving the density and thermal conductivity of the castings.

4. Mold Structural Strength and Lifespan Assessment

Using finite element analysis (FEA) to assess the stress distribution of the mold during high-pressure die casting, high-strength steel or hardened mold components are selected to ensure dimensional accuracy and surface quality are maintained even in mass production.