Application of Thermal Conductive Plastic PA6 in LED Lamp Cup

Although aluminum materials have become more mature as a cooling system technology, the development of plastic thermal conductive materials has attracted more and more attention. Both of them have been widely used in LED lamp cup radiators as a new material and traditional materials. There is a difference. The following is a comparison of the advantages and disadvantages of the two, as we all know.

The first is the advantages of plastic thermal materials over aluminum:

1. Light weight In indoor lighting, the weight of lamps and lanterns has an impact on many aspects, such as the increase in weight will increase the difficulty of installation and transportation of the lamps and lanterns, and will also cause hidden dangers such as personal safety. The density of pure aluminum is 2700kg/m3, the density of aluminum alloy will be greater, and the density of heat-conducting plastic is about 1420 kg/m3, which is about half of that of aluminum alloy. Therefore, in the same shape, the weight is only aluminum. About half of the alloy.

2. More environmental protection and safety In the production process of plastic enclosures, almost no toxic pollution is produced. In the production of aluminum shells, there are often electroplating processes. The metal in the electroplating waste liquid will cause water and soil contamination. Serious pollution. In terms of safety, plastic is an insulating material, and there is no need to worry about the safety hazards caused by the lamp's conductive shell. Plastics have absolute advantages in high pressure testing.

3. Improve Design Freedom Plastics flow well, so thin parts can be produced, as well as more complex shapes. The main production method of aluminum shell is die-casting or stretch-forming, and it is impossible to carry out more complex shapes in the production process. In addition, in terms of apparent effects, injection molded products will be more beautiful, and they may also add their own logos that are different from other companies.

4. Convenient processing and higher efficiency The plastic heat-conducting material, like other plastic parts, can be molded at one time without post-processing. In injection molding, the mold can be designed as one out of four, so the work efficiency is high. After the aluminum material is extruded, it is often required to have a deburring process. If the requirements for the shape are relatively high, the aluminum material must be plated with nickel and the like, and the processing cycle will also increase.

5. Start-up system simplifies When the housing is made of aluminum alloy, due to the conductive shell, the interior must be isolated starting system, the plastic itself is insulated, so no non-isolated starting system can be used when used as a cooling system, due to the non-isolated system to the isolation system Not only is it less expensive and smaller, it will not only reduce costs but also occupy less space.

6. Reducing system cost In terms of unit price, the price per unit of heat conducting plastic must be higher than that of aluminum, but the system cost is flat or low, and the greater the quantity, the more obvious the cost advantage of plastic. In addition, plastic thermal conductive materials are currently in a preliminary stage, the future price will decrease with the development of the industry and the increase of product quantity, and the price of aluminum as a non-ferrous metal is unlikely to be significantly reduced. The cost reduction of plastics is mainly reflected in processing costs.

Advantages of using thermally conductive plastics Compared to metal materials, thermally conductive plastics have several advantages:

1. Small density, light weight, easy to carry.

2. The design freedom of plastic molds is high, and the design of lamp cups is highly flexible.

3. Convenient processing and molding, can be formed once, green, and improve production efficiency.

4 can be free color, comply with the higher requirements of the era of the United States

5. The overall cost is lower than metal, improving efficiency, reducing the volume of workshop space

6. In terms of raw material recyclability, plastic is much larger than metal, adapting to the future and policy requirements.