What Kind Of Material Is The Car Thermostat Made Of?

The thermostat is a kind of thermostat, usually containing a temperature sensing component, which opens or closes the flow of the coolant by expansion or contraction, that is, automatically adjusts the amount of water entering the radiator according to the temperature of the cooling liquid, and changes the cooling. The circulation range of the liquid to adjust the cooling capacity of the cooling system.

The thermostat currently used is mainly a wax thermostat, which controls the circulation of the coolant by the principle of thermal expansion and contraction of the paraffin inside. When the cooling temperature is lower than the specified value, the refined paraffin in the temperature sensing body of the thermostat is solid, and the thermostat valve closes the passage between the engine and the radiator under the action of the spring, and the coolant is returned to the engine through the water pump to perform the engine. Small loop. When the temperature of the coolant reaches the specified value, the paraffin begins to melt and gradually becomes liquid, and the volume increases and the rubber tube is pressed to shrink. When the rubber tube contracts, the push rod acts on the upward thrust, and the push rod has the valve. The downward thrust reverses the valve. At this time, the coolant passes through the radiator and the thermostat valve, and then flows back to the engine through the pump to perform a large cycle. Most of the thermostats are arranged in the cylinder head water outlet pipe. This has the advantages of simple structure and easy discharge of air bubbles in the cooling system. The disadvantage is that the thermostat often opens and closes during operation, causing oscillation.