Application of hot double-sided adhesive and yellow wax tube in led tube
Although thermally conductive double-sided tape and yellow wax tube are auxiliary materials, they are widely used in the production of led lamp tubes. They are introduced separately
1. Thermally conductive double-sided adhesive and thermally conductive silicone sheet
Thermally conductive double-sided adhesive is made of acrylic (PMMA) filled with thermally conductive ceramic powder and then compounded with organic silicone adhesive. It has high thermal conductivity and insulation, as well as flexibility, compression, conformability, and strong adhesion. . Thermally conductive double-sided adhesive has a wide temperature range, can fill uneven surfaces, and can tightly and firmly adhere to the heat source device and the radiator, and quickly conduct heat away.
The thermally conductive silicone sheet has insulation properties, which can reduce the process difference requirements of the radiator and the heat dissipation structure. The thermal conductivity of the thermally conductive silicone sheet is 0.8~4.5W/mK. It is mostly used in LED lamps, LED TVs, etc. It has high thermal conductivity, heat dissipation, micro-adhesive, shockproof, filling and other characteristics, and can be customized for various specifications and sizes of components and special-shaped parts .
2. The yellow wax tube (polyvinyl chloride glass fiber hose) is an electrical insulating paint tube made by woven with alkali-free glass fiber and then coated with polyethylene resin and plasticized. Yellow wax tubes are mainly used for wiring insulation and mechanical protection of lighting appliances (such as LED lighting fixtures) or motors. The shape of the yellow wax tube is yellow, softer, and has a sharp edge.
Diameter: both 5mm and 3mm, choose according to the thread warp
The shape of the yellow wax tube
(1) Put the yellow wax tube on the power cord for temperature resistance test. The heat shrinkable tube is not melted, yellowed, or brittle under the environment of 125℃, and the glass fiber tube under the environment of 120℃.
(2) According to the requirements of different orders, the pressure test of the yellow wax pipe shall be carried out.
3. How to use it?
Thermally conductive double-sided adhesive can be used to paste the LED light board and paste it on the radiator to facilitate heat dissipation. Such as the T8led tube lamp board and the back of the T5led fluorescent lamp can use this process.
As for the yellow wax tube, it is generally worried that the wire rubber will be broken, and the yellow wax tube is usually added.
