Thermal grease coefficient 1.0- How to use computer thermal grease

Thermal conductive silicone grease is a kind of thermal conductive material with high thermal conductivity, and has good thermal conductivity, insulation and packaging properties. It is usually composed of silicone and thermal conductive fillers (such as metal powder, ceramic powder, etc.).

 

Characteristics of thermal grease

1, thermal conductivity: thermal grease can effectively conduct heat, improve the heat dissipation effect of electronic equipment, reduce the temperature of the equipment.

2, insulation performance: thermal grease has good insulation performance, can isolate the current between electronic components and heat sink, avoid short circuit and electrical failure.

3, packaging performance: thermal grease can fill the small gap between electronic components, improve the mechanical strength and stability of components.

4, high temperature resistance: thermal grease has good high temperature stability, can work in high temperature environment.

5, chemical resistance: thermal grease has good chemical resistance, can resist acid and alkali corrosion within a certain range.

Thermal grease is widely used in the field of electronic equipment heat dissipation, common applications include computer motherboard, graphics card, CPU radiator, LED radiator and so on. The selection of suitable thermal grease should be determined according to the specific heat dissipation requirements and application environment, and different models of thermal grease have different thermal conductivity and characteristics.

 

Technical parameters (AtTA =25℃)

Argument

Symbol Test standard Performance index
Cone penetration 1/10mm25℃

/

ASTM D217

240~340

Oil dispersion 150℃.24h%

/

HG/T 2502

≤0.1

Volatile content (150℃, 24h) %

/

HG/T 2502

≤0.1

Dielectric strength kV/mm

eo

GB/T 1695

≥20

Dielectric constant 1.0MHz

ε

GB/T 1693

2.5

Volume resistivity Ω·cm

ρ

GB/T 1692

≥2.0×1015

 

Limit parameter (AtTA =25℃)

Argument

Symbol

Numerical value

Unit

Thermal conductivity

λ

1.5~2.0

W/m·K

Specific gravity

s.g.

2.5~2.7

g/cm³

Operating temperature

TOPR

-20°C To +260°C

Storage temperature

 TSTG

 10°C To +25°C 

The thermal conductivity indicates the ability of the thermal conductivity material to conduct heat, and the larger the value, the stronger the ability to conduct heat. Thermal grease usually has good thermal conductivity, and its thermal conductivity can meet the heat dissipation requirements of most electronic devices. However, for some high-power, high-temperature applications, it may be necessary to choose a thermal conductivity material with a higher thermal conductivity.

 

How to use computer thermal grease

1, preparation: Before using thermal grease, first of all to power off the computer and unplug the power cord. Make sure the computer is completely powered off to avoid any accidental damage.

2, cleaning treatment: Use appropriate cleaning tools (such as non-woven fabrics or cotton swabs) to clean the old thermal grease or dirt on the treatment area. You can use some special cleaning agent or alcohol cotton ball to wipe the treated area. Make sure to clean thoroughly and wait for the treatment area to dry completely.

3, appropriate application: Take an appropriate amount of thermal grease (usually the size of a grain of rice), and evenly apply it to the treatment area, such as the metal surface of the CPU chip, or the heat dissipation block on the graphics card chip.

4, uniform application: Use a cotton swab or special scraper to apply the thermal grease on the treatment area with a uniform thickness. Ensure that the thermal grease is evenly distributed to avoid bubbles or uneven application.

5, assembly and installation: wait for the thermal grease to form a film of uniform thickness on the treatment area, you can reassemble the computer equipment and install the corresponding heat dissipation equipment, such as radiators.

If you need more specific information about thermal grease, such as specific product model, manufacturer information or application cases, I can provide you with more detailed answers.

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