Plastic-coated aluminum heat sinks, as an increasingly important thermal management solution in the LED lighting sector, continue to push the boundaries of performance through design and material innovations. The current market offers a wide variety of LED heat sinks, including die-cast aluminum, extruded aluminum, stamped aluminum heat sinks, and high thermal conductivity plastic heat sinks. However, plastic-coated aluminum heat sinks stand out due to their unique advantages.

Although die-cast aluminum heat sinks are cost-effective, their design is limited by the thickness of the cooling fins, which restricts the maximization of heat dissipation area. Extruded aluminum heat sinks, on the other hand, feature ultra-thin cooling fins that greatly increase the heat dissipation area and utilize the principle of air convection for efficient heat dissipation, although their post-processing costs are relatively high. Stamped aluminum heat sinks, formed by stamping processes, have smooth surfaces without fins, thus limiting the heat dissipation area.

Plastic-coated aluminum heat sinks cleverly combine thermal plastic materials with aluminum, using thermoplastic materials that not only offer good flow properties, moderate density, excellent toughness and strength but also are easy to injection-mold, demonstrating outstanding thermal shock resistance and excellent insulation characteristics. Compared to all-aluminum heat sinks, plastic-coated aluminum heat sinks offer advantages in terms of cost, processing time, and temperature management, and the finished product is more durable and less prone to damage. Notably, customers can use custom plastic molding machines to achieve differentiated designs for the appearance of the lighting fixtures, meeting individual needs, while the excellent insulation properties of plastic-coated aluminum heat sinks also easily pass safety standard tests.

In addition, high thermal conductivity plastic heat sinks, as a fully plastic solution, exhibit a thermal conductivity coefficient far superior to that of conventional plastics, showcasing strong thermal conduction and radiation capabilities for various power levels of lighting fixtures, offering innovative insulation and thermal management options.

Lori's independently developed PA/PC thermal plastic raw material pellets not only maintain the general appearance of plastics but also achieve a breakthrough in thermal conductivity efficiency, with a maximum thermal conductivity coefficient reaching up to 5.0 W/mK, comparable to high-end engineering plastics. Furthermore, this material successfully reduces the weight of traditional aluminum heat sinks by approximately 50%, providing greater flexibility and design space for product development. In terms of flame resistance, this material also meets the high standard of UL94 V-0, ensuring safety and reliability in use.