Bimetallic thermometer have oil oil good or no good

Bimetallic thermometer have oil oil good or no good? Answer: oil or no oil bimetallic thermometer are good, they each have each characteristic. In order to meet the needs of actual production, so the bimetallic temperature scoring average structure and oil charge structure. The two kinds of bimetal thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. Bimetallic thermometer without oil ( The ordinary structure) The bimetallic thermometer is one of the most commonly used. Bimetallic thermometer to two different linear expansion coefficient of metal together, one end fixed, when the temperature changes, the two different kinds of metal thermal expansion, drive the pointer to indicate the temperature, that is the bimetallic thermometer. Bimetallic thermometer is a round shape into threaded heat bimetallic strip as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial. Bimetallic thermometer is oil ( The structure of oil filled) Called seismic bimetallic thermometer, seismic bimetallic thermometer is inside the watch case filling the aseismic silicone oil or glycerin, to slow the effects of environment vibration. Seismic bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of the liquid, steam and gas medium and bad temperature and vibration environment places. The thermometer from the design principle and the structure has the waterproof, corrosion resistance, vibration resistance, intuitive, easy reading, no mercury pollution, durable and other characteristics, widely used in petroleum, chemical industry, machinery, ships, electricity, textile, printing and dyeing and other industrial and scientific research departments. Seismic bimetallic thermometer is based on the ring around the made of bent bimetallic strip. Side heated expands, turns the pointer, the instrument will show should value, and prevent environmental vibration within the bimetallic thermometer filling or silicone oil glycerin separate the bimetallic thermometer display parts and measurement in order to achieve seismic effect.