Let's first understand the term of LED lamp: Light-Emitting Diode (LED) is a semiconductor electronic component that can emit light. This electronic component appeared as early as 1962. In its early stage, it could only emit low-light red light. Later, it developed other versions of monochrome light. Today, it can emit light all over the visible, infrared and ultraviolet light, and its luminosity has been increased to a considerable degree. With the development of technology, light-emitting diodes have been widely used in display, TV lighting decoration and lighting.
Last March, Zhongshan City ** Electronics Co., Ltd. asked our company about the performance of FEP heat shrinkable tubes. Our professional sales industry knows about the company's main aluminum substrates, single and double panels, high frequency boards, circuit board welding processing, etc.
Under our mutual communication and understanding for many times, we understand their special requirements for heat-shrinkable tubes, which are very important in the production of LED lamps. This special link has very high requirements. Ordinary heat-shrinkable sleeves can not meet their needs at all, and our FEP sleeve standards fully meet their needs and standards. Let's make sure that our FEP sleeve standards meet their needs and standards. Look at their specific requirements:
The purpose of sintering is to solidify silver glue. Sintering requires temperature monitoring to prevent bad batch performance. The sintering temperature of silver glue is generally controlled at 150 C and the sintering time is 2 hours. According to the actual situation, it can be adjusted to 170 C for 1 hour. Insulation glue is generally 150 C, 1 hour.
Silver glue sintering oven must be opened and replaced at intervals of 2 hours (or 1 hour) according to the technological requirements, and should not be opened at will. Sintering oven should not be used for other purposes to prevent pollution.
LED pressure welding
The purpose of pressure welding is to lead the electrodes to the LED chip and complete the connection between the internal and external leads of the product.
There are two kinds of pressure welding processes for LED: gold wire ball welding and aluminium wire welding. The process of aluminium wire bonding is to first press the first point on the electrode of the LED chip, then pull the aluminium wire over the corresponding bracket, press the second point and break the aluminium wire. The process of gold wire ball welding is similar to that of firing a ball before pressing the first point.
Pressure welding is the key link in the LED packaging technology. The shape of arc wire, solder joint and tension of pressure welding gold wire (aluminium wire) need to be monitored.