Plastic Heat Sink Material

Every light fixture needs a way for the heat from the light source to escape the fixture a component commonly referred to as the heat sink.

Plastic heat sink material. 3 12 14 imagine if all the metal components of the common light fixture could be consolidated to just a few plastic parts. In this study a heat sink was designed in 3d cad to cool a dual core host processor. Aluminium alloys 6060 and 6063 are commonly used with thermal conductivity values of 166 and 201 w m k respectively. The material of the heat sink plays an instrumental role in determining the efficiency of a heat sink.

Light weight 3d printed heat sinks heat sink performance is dominated by surface. Can be damaged by extreme heat price. The stated thermal properties of engineered graphite foams have enhanced their consideration as heat sink materials. The performance of both an aluminum and copper design was then evaluated using cfd.

Heat sinks and other heat removal applications are among the last areas where thermoplastics inherent thermal insulators have yet to replace metals. The metal heat sinks represent a substantial part of the cost of led luminaires. Which material should be used for heat sinks. Until fairly recently that is.

More expensive than steel and solid surface sinks. Laboratory tests of copper aluminum and graphite foam. This blend of quartz dust and acrylic resins offers the appeal of stone for less quality. Material suppliers believe that the use of plastic heat sinks would prove beneficial for the vast majority of led luminaires as they can reduce assembly costs increase design freedom and consolidate parts.

A heat sink also commonly spelled heatsink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium often air or a liquid coolant where it is dissipated away from the device thereby allowing regulation of the device s temperature. Aluminium alloy 1050a has one of the higher thermal conductivity values at 229 w m k but is mechanically soft. As an injection molding contractor with expertise in lighting components kruunutekniikka knew it could provide improved manufacturability and performance in led lighting by producing non metal heat sinks at scale. In addition the soft material allows for the elimination of thermal interface materials in many.

This innovation allows for plastic components that match the heat removal of metals but with reduced weight manufacturing cost and more design freedom. The values depend on the temper of the alloy. In the two polyone case studies this certainly proved true. Elk grove village il.

Now the million dollar question. Modifying plastics to improve their thermal conductivity is a burgeoning area of opportunity for a handful of compounders. Manufacturers typically build heat sinks from die cast aluminum effective but costly to buy and work with.