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What are the precautions for selecting heat conducting gasket?

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What are the precautions for selecting heat conducting gasket?

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  • Time of issue:2021-05-25 11:00
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What are the precautions for selecting heat conducting gasket?

Thermally conductive silicone film is also called thermally conductive silicone pad. Thermally conductive silicone film has good thermal conductivity and high-level pressure resistance. It is a thermally conductive composite material with great manufacturability and practicability in China. Silicon is the old name of silicon. In mainland China, silicone glue can generally be called silica gel. Thermally conductive silicone film is one of the types of silica gel products, In Taiwan and some other Asian countries and regions, the thermal conductive silica gel sheet is still called thermal conductive silica film. The thermal conductive silica gel gasket has a wide range of application technologies, mainly including in-vivo research of enterprise electronic control appliances and automobile engineering machinery. As a component affecting heat dissipation and insulation, it can be developed and used for a long time without corrosion to metal components, So what are the safety precautions we need to pay attention to when using?
When purchasing thermal conductive silica gel foot mats suitable for students' own enterprise products, the heat source, insulating thermal conductive silica gel sheet and radiator top cover should be kept in full contact, and there should be no gap in the middle, because they mainly conduct heat by contact with each other. If there is a gap in the middle, it will greatly increase the social contact thermal resistance, So as to reduce the thermal conductivity. In the long-term development work, the temperature should be kept between - 50 and 200 ℃.
Due to the easy adhesion of silica dust, the process should keep clean and flat thermal insulation and heat conduction siloxane sheet, three and radiator cap, which can avoid the influence of dust and dirty substances on thermal conductivity and viscosity.
The products are widely used in IGBT, power module, MOS tube heat dissipation, CPU, radiator, heat conduction source and other fields. According to their own performance requirements, select thermal conductivity, insulation suitable for their own silicone foot pad, with double-sided adhesive backing self-adhesive characteristics, etc.
Although the silica gel has good anti vibration and anti compression performance, it should be handled with care and uniform pressure during transportation to avoid damage to the thermal insulation and heat conduction silica gel gasket, so as to give better play to the role of thermal insulation and heat conduction silica gel.
Silicone pad itself has good EMC protection due to its thermal conductivity material with thermal insulation characteristics. It is not easy to pierce, tear or damage. Silicone material is in compression state. It is a good EMC reliability. Heat conductive silicone grease is easy to dry on the surface during curing at room temperature, unstable at high temperature, easy to volatilize and flow, The heat capacity will gradually decrease, which is not conducive to long-term reliable system operation.

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