Can thermal grease still conduct heat after it dries?
Source:souhu+modify Author:QL Chemical Release time:2024-11-13 16:01 Reading times:58

Thermal grease is a common thermal conductive material that is currently used in many electrical appliances. Although thermal grease is classified as a chemical substance, it does not corrode metals, plastics, ceramics, and other substrates. It does not release volatile substances on the electrical substrate during use, ensuring human health.


So what happens when the thermal grease dries up?

1. The drying of thermal grease may also be due to poor quality. The main raw material of thermal grease is silicone oil, and then some heat-resistant and thermally conductive materials are added to make it thermally conductive. Inferior products can use cheap raw materials, which will dry out after a period of use. At this time, the thermal conductivity effect is seriously threatened. It is not recommended to buy such products.

2. When the thermal grease dries, first check whether the surface is dry or dried up. If the surface is slightly dry, this is normal. Even if you use big brand products, there will be oil separation and the surface will be slightly dry.
Is the thermal grease thermally conductive after drying?
If the thermal grease is only slightly dry without cracking, the thermal conductivity effect still exists. If the thermal grease becomes more serious, it has been severely dried, and even multiple cracks have appeared, and there is no thermal conductivity effect at this time. Because the role of thermal grease is to fill the gap, the heating element and radiator of the appliance are in full contact, and the heat generated is transferred as much as possible.
Thermal grease is a common heat dissipation material. This heat dissipation material is not only used in household appliances, but has also been widely used in electronic instruments, meters and other fields. The price is related to the brand and thermal conductivity index. The thermal conductivity of the same brand of thermal grease is different, and the price is also different.

What should I do if the thermal grease dries up?
The thermal grease dries up because the oil in the thermal grease separates seriously, and too much silicone oil evaporates and dries up.
Solution:
Replace the thermal grease, clean the radiator and chip, replace the radiator, and save the thermal grease.
1. Replace the thermal grease: You need to disassemble the graphics card and remove the original thermal grease. Apply new thermal grease on the surface of the chip. It is recommended to choose thermal grease with high thermal conductivity, low density, suitable viscosity and temperature resistance. When applying thermal grease, pay attention to evenly apply it to avoid problems such as bubbles and blockage.
2. Clean the radiator and chip: First disassemble the graphics card and remove the radiator and chip. Then clean it with a detergent or solvent such as alcohol. It is recommended to use a professional detergent or alcohol to clean it to avoid damage to the hardware. After cleaning, apply new thermal grease and reinstall the radiator and chip.
3. Replace the radiator: If the above two methods are ineffective, you can also consider replacing the radiator.


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