Why does thermal paste have bubbles? How to avoid bubbles?
Time:2024-07-25
Views:264
As a heat dissipation material, thermal paste has long been widely used in various electrical appliances, including common computers and TVs. However, many users have found that thermal paste will produce tiny bubbles after use. Why do bubbles appear? As a single-component product of paste, it can be directly applied. Is it a quality problem?
Why does thermal paste have bubbles?
1. It is normal for thermal paste to produce bubbles during use. Although thermal paste belongs to paste material, in order to prevent the raw materials from precipitating during storage, it needs to be stirred evenly before use. A few bubbles are introduced during the stirring process. These bubbles will follow the thermal paste and adhere to the surface of the substrate.
2. Thermal paste is prone to bubbles when using a machine for construction. Although it improves work efficiency, it also adds a lot of troubles to users. When using a machine for construction, it is necessary to consider whether the machine equipment can realize automated construction and whether it can save time and effort.
How to avoid bubbles in thermal paste?
1. The speed of thermal paste should be as uniform as possible during stirring to avoid introducing more bubbles. On the surface of the substrate to be constructed, you can use your fingers with disposable plastic gloves to gently smooth and press the paste to help the bubbles out.
2. In order to increase the construction speed during large-scale construction, the thermal paste can be left to stand, pressurized or vacuumed to remove bubbles after construction to improve work efficiency.
Does the presence of bubbles in the thermal paste have a big impact?
The main purpose of the thermal paste is to assist in heat dissipation and serve as a "bridge" for heat transfer. During use, the main goal is to fill the gap between the radiator and the heating element. The two are fully combined to transfer the heat in time. If there are bubbles in the thermal paste, there will be air in the position where there are bubbles. Air is a non-conductor of heat, which will directly affect the thermal conductivity and will be mistaken for poor quality of the thermal paste.
As a heat transfer material, thermal paste needs to be paid more attention during construction. In addition to avoiding the generation of bubbles, it is also necessary to pay attention to the quality of the thermal paste. Good quality products not only have thermal conductivity but also have insulation properties. For example, TENSAN focuses on the research of thermal paste and provides customized thermal paste application solutions.
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