Thermally conductive silicone grease is currently the most widely used thermally conductive material in the electronic and electrical industry
Time:2020-01-04 15:50:00 Browse:32 Editor:Youbao New Material Technology Co., Ltd.
Although the performance of thermal silica and thermal grease are very similar, the manufacturing process is similar, but a viscous substance is added to the formula to make it have better bonding performance. But there are still differences between the two. Do not confuse or misuse the two when using.
Friends who have not touched this industry may think that thermally conductive silicone and thermally conductive silicone grease are the same product. In fact, they are not. Although they are different by one word, they are far apart. Although they are both thermally conductive materials, their performance is still different. Relatively speaking, the performance effect of thermal grease is relatively good.
Thermally conductive silicone grease: Thermally conductive silicone grease is used for gap filling and heat transfer between high-power transistors, switch tubes, integrated circuits and other chips and heat sinks. It has excellent thermal conductivity, high temperature resistance, anti-aging, waterproof, insulation and other characteristics. It is insoluble in water, not easy to be oxidized, and has excellent electrical insulation properties. It protects the circuit while conducting heat and improves the stability of the circuit. Thermally conductive silicone grease is currently the most widely used thermally conductive material in the electronic and electrical industry.
The correct use of CPU thermal grease
1. First, clean the surface of the CPU core and radiator with a high-purity solvent such as high-purity isoamyl alcohol or acetone and a lint-free cloth (such as a cloth for cleaning the lens) (a fingerprint may be as thick as 0.005 inches). I personally feel that this step can be omitted, as long as the surface is clean and oil-free.
2.Determine the area on the heat sink that is in contact with the CPU, and squeeze enough thermal grease in the center of the area.
3.Use a clean tool such as a razor blade, the edge of a credit card or a clean knife to pick up a little thermal paste and transfer it to the corner of the CPU core (such as the lower left corner). Note that only a small piece is enough, about the size of a half grain of rice.
4.Put your fingers in the plastic bag, and then rub the thermal paste on the bottom of the radiator with your fingers until the thermal paste evenly covers the entire area in contact with the CPU. Clockwise and counterclockwise movement can be used to ensure that the thermal paste can fill the gaps and uneven places at the bottom of the radiator. Note: Do not apply directly with your fingers!
5. Wipe off the thermal grease on the bottom of the radiator with a lint-free cloth. At this time, you can see that the color of the thermal grease on the bottom of the radiator is different from other areas, indicating that the thermal grease has evenly filled the gap in the base.
6. Using a razor blade or other clean tool, start from the corner of the CPU core and spread the thermal grease evenly over the entire core. The flatter the surface to be touched, the thinner the need for thermal paste. For the bottom surface of a common radiator, the thickness of the thermal paste is about the thickness of a sheet of plain paper (0.003-0.005 inches). If the bottom surface of the radiator is bright and flat, the thermal paste can be as thin as translucent.
7. Make sure that there is no foreign matter on the surface of the heat sink base and the CPU core, and put the heat sink on the CPU. At this time, only lightly press the heat sink, and cannot rotate or translate the heat sink. Otherwise, the thickness of the thermal paste between the heat sink and the CPU may be uneven.
Ubao thermal grease provides excellent thermal conductivity. It has excellent thermal conductivity, insulation, moisture resistance, corona resistance, leakage resistance and chemical resistance. Long-term use under high temperature will not be solidified, non-oily, non-toxic, tasteless and environmentally friendly. Suitable for manual and machine operation. Learn more about Ubao: Auto parts grease, bearing industry grease, industrial grease, electronic and electrical grease, can be customized according to customer requirements, hotline: 0755-88213688, welcome to order.