1. Filling fluid for electronic instruments
Silicone oil is widely used as a filling liquid for electronic instruments because of its high flash point (high temperature resistance, non-volatile, oxidation resistance), low freezing point (low temperature resistance, non-freezing), small temperature-viscosity coefficient, and non-corrosive properties.For example, in diaphragm pressure, differential pressure transmitters, and diaphragm pressure gauges, silicone oil is used as the filling fluid of the capillary or measuring chamber to ensure that the instrument can work normally in both high and low temperature environments.


2. Fixing and packaging of electronic components
The solid silicone sealant of modified silicone oil has hydrophobicity, sealing and electrical insulation properties, so it is used as a filler or packaging material for various electronic devices and modules.For example, silicone oil can be used for the packing of capacitors, the insulating packaging of electronic components and devices, such as the packaging of perfusion sealed explosion-proof solenoid valve coils and the curing packaging of the measurement/conversion module of the integrated temperature transmitter.


3. Cooling ointment
In home appliances, electronic equipment, and CPUs, silicone oil is commonly used as a heat dissipation ointment.These equipment or electronic devices will generate a certain amount of heat during operation and operation. If the heat dissipation is not good, the operating temperature of the device will increase, the solder at the welding point will melt, and in severe cases, it will cause electrical failure or stop working.As a heat dissipation ointment, silicone oil can effectively transmit heat and ensure the normal operation of the equipment.


4. Insulating medium and impregnating agent
Silicone oil is an excellent insulating material with high resistivity and breakdown voltage.In the electrical and electronic industry, silicone oil is often used as an insulating medium and impregnating agent for electrical equipment such as transformers, capacitors, and scanning transformers for televisions.Transformers filled with silicone oil have the advantages of small size, high power, long life, and good electrical insulation properties.In addition, silicone oil can also be used for insulation treatment of cable connection parts.


5. Hydraulic oil
In hydraulic switch valves, silicone oil is also used as hydraulic oil.Wear-resistant dimethyl silicone oil is used as the hydraulic oil for large-caliber hydraulic switch valves. Due to its moderate viscosity, lubricity, wear resistance, corrosion resistance and high temperature oxidation resistance, the silicone oil hydraulic switch valve has the advantages of small size, light weight, good hydraulic kinetic energy, good working fluid flow, good sealing, avoiding oil spills and long service life compared with pneumatic switch valves of the same caliber.


6. Application in high vacuum device
The silicone diffusion pump oil in silicone oil has excellent oxidation resistance and radiation resistance, as well as very low saturated vapor pressure, so it is widely used in atomic energy accelerators, high vacuum systems of electron microscopes, and the production of television picture tubes, high-power electron tubes, microwave electron tubes and other cathode electron tubes.


There are many application cases of silicone oil in the electrical and electronic industry, and its unique physical and chemical properties make silicone oil one of the indispensable materials in these fields.


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