[Text / "High-tech LED - Technology and Applications" September issue congratulations]
“We are committed to providing more choices of thermal materials for LED luminaires and better solutions.†Wu Rui, Lighting Application Development and Technical Support Manager, DSM Engineering Plastics (hereinafter referred to as “DSMâ€) The company's composite materials with high thermal conductivity and sufficient mechanical strength will be the new choice for future heat dissipation materials.
DSM began to trade with China in 1963. The China headquarters and R&D center are located in Shanghai. Currently, it has 31 branches in China including 22 production sites, covering food, health products, feed, medicines and automobiles. In 2011, sales in China, coatings and paints, electrical and electronic, lighting, etc. exceeded US$2 billion.
DSM Engineering Plastics is a high-performance chemical materials company owned by DSM, offering a wide range of high-performance product portfolios with a business share of more than a quarter of the entire DSM company.
At present, it is one of the world's leading suppliers of thermal engineering plastics. The cooperative customers include international manufacturers such as Philips, Osram and GE.
Introduction of thermally conductive engineering plastics
LED application technology is changing with each passing day, but the heat dissipation problem of lamps has been plaguing its luminous efficiency and service life. In terms of heat dissipation materials, the mainstream has always been dominated by aluminum. Due to its low thermal conductivity (only 0.2W/mk), plastics have rarely been used in the field of LED heat dissipation.
Although die-cast aluminum as a heat sink is relatively mature in terms of technology, there are still some shortcomings that cannot be overcome by itself. Mainly manifested in the high density and heavy weight of aluminum, which is not conducive to the installation and transportation of lamps; aluminum needs to consume a lot of energy and produce environmental pollution in raw material preparation and later production; after die-casting aluminum molding, it also needs a lot of subsequent manual processing, not only The processing cost is increased, and the consistency and stability of the product are not high. In addition, the aluminum itself is electrically conductive, and there are certain safety hazards in the production process, and the free design is not high.
In view of the shortcomings of die-casting aluminum, DSM provides a new choice for LED heat dissipation system: adding high thermal conductivity additives and other materials to high performance engineering plastic substrates to produce high thermal conductivity and sufficient mechanical strength. New composite engineering materials.
DSM engineering plastics can be divided into two categories: electrical insulation and non-electric insulation. Although the plastic itself is an insulating material, it can be divided into two types according to the heat-conductive material added thereto, and the heat-conductive material is added to the plastic to affect the electrical conductivity of the plastic.
The electrically insulating heat-conducting engineering plastics can be separately used in lamps requiring high-voltage driving. They fully satisfy the dual requirements of the heat-insulating electrical insulation and thermal conductivity of the engineering plastic substrate, without changing the original mechanical properties of the plastic substrate. Next, improve the electrical safety of the radiator.
Insulated plastics have higher thermal conductivity and are mainly used in some low-voltage high-power spotlights. Obviously, the thermal insulation plastic is much more insulating and safe than metal, but it cannot be tested by high voltage alone. According to Wu Rui, the thermal conductivity of non-insulated thermal engineering plastics introduced by DSM can be up to 14W/mK, and the insulation type is 8W/mK, which is dozens of times that of ordinary plastics.
It is understood that the biggest advantage of thermal plastics compared with traditional die-cast aluminum is that it is easy to process and has high production efficiency. It can be molded at one time without secondary processing and is suitable for mass production. The heat-dissipating shell of the lamp processed by the heat-conducting plastic is fully automatic produced by the injection molding machine. When the injection molding is performed, the mold can be designed to produce four shells in four or ten seconds. After die-casting aluminum molding, it is necessary to manually remove the burrs. If the shape is high, the coating, spraying/oxidation processes are required, and the processing cycle is long.
At the same time, the production efficiency of thermal plastics is much greater than that of die-cast aluminum. The heat-conducting plastic can also be designed with a high degree of freedom to achieve a variety of appearances and increase the added value of the product. The biggest advantage is that existing conventional injection molding machines can be produced without the need to replace equipment.
Unfinished
For more information, please refer to the September issue of "High-tech LED-Technology and Applications"
“We are committed to providing more choices of thermal materials for LED luminaires and better solutions.†Wu Rui, Lighting Application Development and Technical Support Manager, DSM Engineering Plastics (hereinafter referred to as “DSMâ€) The company's composite materials with high thermal conductivity and sufficient mechanical strength will be the new choice for future heat dissipation materials.
DSM began to trade with China in 1963. The China headquarters and R&D center are located in Shanghai. Currently, it has 31 branches in China including 22 production sites, covering food, health products, feed, medicines and automobiles. In 2011, sales in China, coatings and paints, electrical and electronic, lighting, etc. exceeded US$2 billion.
DSM Engineering Plastics is a high-performance chemical materials company owned by DSM, offering a wide range of high-performance product portfolios with a business share of more than a quarter of the entire DSM company.
At present, it is one of the world's leading suppliers of thermal engineering plastics. The cooperative customers include international manufacturers such as Philips, Osram and GE.
Introduction of thermally conductive engineering plastics
LED application technology is changing with each passing day, but the heat dissipation problem of lamps has been plaguing its luminous efficiency and service life. In terms of heat dissipation materials, the mainstream has always been dominated by aluminum. Due to its low thermal conductivity (only 0.2W/mk), plastics have rarely been used in the field of LED heat dissipation.
Although die-cast aluminum as a heat sink is relatively mature in terms of technology, there are still some shortcomings that cannot be overcome by itself. Mainly manifested in the high density and heavy weight of aluminum, which is not conducive to the installation and transportation of lamps; aluminum needs to consume a lot of energy and produce environmental pollution in raw material preparation and later production; after die-casting aluminum molding, it also needs a lot of subsequent manual processing, not only The processing cost is increased, and the consistency and stability of the product are not high. In addition, the aluminum itself is electrically conductive, and there are certain safety hazards in the production process, and the free design is not high.
In view of the shortcomings of die-casting aluminum, DSM provides a new choice for LED heat dissipation system: adding high thermal conductivity additives and other materials to high performance engineering plastic substrates to produce high thermal conductivity and sufficient mechanical strength. New composite engineering materials.
DSM engineering plastics can be divided into two categories: electrical insulation and non-electric insulation. Although the plastic itself is an insulating material, it can be divided into two types according to the heat-conductive material added thereto, and the heat-conductive material is added to the plastic to affect the electrical conductivity of the plastic.
The electrically insulating heat-conducting engineering plastics can be separately used in lamps requiring high-voltage driving. They fully satisfy the dual requirements of the heat-insulating electrical insulation and thermal conductivity of the engineering plastic substrate, without changing the original mechanical properties of the plastic substrate. Next, improve the electrical safety of the radiator.
Insulated plastics have higher thermal conductivity and are mainly used in some low-voltage high-power spotlights. Obviously, the thermal insulation plastic is much more insulating and safe than metal, but it cannot be tested by high voltage alone. According to Wu Rui, the thermal conductivity of non-insulated thermal engineering plastics introduced by DSM can be up to 14W/mK, and the insulation type is 8W/mK, which is dozens of times that of ordinary plastics.
It is understood that the biggest advantage of thermal plastics compared with traditional die-cast aluminum is that it is easy to process and has high production efficiency. It can be molded at one time without secondary processing and is suitable for mass production. The heat-dissipating shell of the lamp processed by the heat-conducting plastic is fully automatic produced by the injection molding machine. When the injection molding is performed, the mold can be designed to produce four shells in four or ten seconds. After die-casting aluminum molding, it is necessary to manually remove the burrs. If the shape is high, the coating, spraying/oxidation processes are required, and the processing cycle is long.
At the same time, the production efficiency of thermal plastics is much greater than that of die-cast aluminum. The heat-conducting plastic can also be designed with a high degree of freedom to achieve a variety of appearances and increase the added value of the product. The biggest advantage is that existing conventional injection molding machines can be produced without the need to replace equipment.
Unfinished
For more information, please refer to the September issue of "High-tech LED-Technology and Applications"
According to the outer diameter of the speakers, we have speakers from 0.4"(10mm) to 5"(128mm).
We divided them into:
1) 0.4"~0.95" speaker (10~24mm)
2) 1"~1.4" speaker (26~36mm)
3) 1.5"~2" speaker (40~50mm)
4) 2.05"~2.75" speaker (52~70mm)
5) 3"~5" speaker (76~128mm)
6) special size speaker
FAQ
Q1. What is the MOQ?
XDEC: 2000pcs for one model.
Q2. What is the delivery lead time?
XDEC: 15 days for normal orders, 10 days for urgent orders.
Q3. What are the payment methods?
XDEC: T/T, PayPal, Western Union, Money Gram.
Q4. Can you offer samples for testing?
XDEC: Yes, we offer free samples.
Q5. How soon can you send samples?
XDEC: We can send samples in 3-5 days.
Small Speakers,Large Speakers,Huge Speakers,Mini Speakers
Shenzhen Xuanda Electronics Co., Ltd. , https://www.xdecspeaker.com