How to choose the thermal conductive silicone

by:Keyuan     2020-12-03
Thermal conductive silicone piece one advantage of its strengths is usually material is more soft, flexibility is good, another is one of his performance is good, the performance of the thermal conductivity is one of the best, and is one of its thickness range can be adjusted, very suitable for as a filling cavity, very natural viscous, operational performance, and maintainability. Selection of thermal conductivity silicone piece of one of the most main advantage is that it reduce surface, interface and radiators contact thermal resistance, thermal conductivity silica gel can be well used as filler. What kind of thermal conductive silicone is high quality? 1. Coefficient of thermal conductivity is refers to under the condition of steady heat transfer, 1 m thick material, the surface temperature of 1 degrees (on both sides K,℃) In 1 hour, by 1 square meter area of heat transfer, the unit is w/m · degrees ( W/( m·K) , here for K can be substituted for ℃) 。 Silicone piece of coefficient of thermal conductivity of thermal conductivity is higher, it will be the efficiency of electronic components on the heat conduction to the radiator of the faster, the heat conduction effect is better. 2. Hardness measurements of thermal conductivity materials generally with shaw hardness, hardness testing principle is the regulation of diamond punch from the height of the fixed falls on the surface of the specimen, the punch up a certain height, will bounce height and the ratio of the drop height to calculate shaw hardness. Thermal conductive silicone smaller tablet hardness, feel soft, have certain ductility, can better fit component interface cracks, achieve more ideal effect of heat transfer; If the silicone piece of hardness is too high, can't effectively fill the gap, for the efficiency of the heat flow through there will be a decrease. But, indicates the smaller the effect of thermal conductivity, the better hardness, thermal conductivity silica gel hardness is too low, will appear in the process of product installation torn deformation, and so on and so forth. In order to avoid the happening of this kind of situation, some powerful experienced producers, such as, theo timothy, on the premise of meet the demand of thermal conductivity, the thermal conductive silicone reinforcing treatment, so as to enhance the toughness of the silicon sheet. 3. Thickness selection silicone material have a certain compression resistance, can enhance the silicone piece by compression joint degree effectively reduce heat transfer distance. The thickness of the silicon sheet choice, according to the components of the concrete. 4. Proportion of the size of heat preservation and heat insulation material porosity are usually high, relatively, the proportion of them is low; As the thermal conductivity material silicon sheet, on the contrary, the greater the porosity for heat transfer properties of thermal conductive materials will be discounted. Rubber products co. , LTD. Foshan online finishing above, welcome to inquire to know or need to silicone rubber products
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