Views: 326 Author: Site Editor Publish Time: 2022-04-22 Origin: Site
Temperature controller is a series of automatic control electronic components that produce on or off actions, which can produce some special effects by physical deformation occurred inside the switch according to the temperature change of the working environment. So, it can provide temperature data to the circuit for the circuit to collect temperature data through different principles of working status at different temperatures. In the working process, molybdenum contact parts are often be used in temperature controllers. Some people are wondering why molybdenum contact components can be used in temperature controllers. Today we will discuss this issue.
Application and advantages of molybdenum
Molybdenum is a kind of metal, which is widely used in many fields of industry, such as alloy field, chemical field, electronic and electrical field etc. The application of molybdenum in the steel industry occupies the first place, accounting for about 80% of the total consumption of molybdenum. Next is the chemical industry, accounting for about 10%. In addition, molybdenum is also used in electrical and electronic technology, medicine and agriculture and other fields, accounting for about 10% of the total consumption.
As an alloying material of parts, molybdenum has many advantages. It can improve the strength and toughness of steel, the corrosion resistance of steel in acid-base solutions and liquid metals, the wear resistance of steel, the hardenability, weldability and resistance of steel Thermal. For example, stainless steel with a molybdenum content of 4%-5% is often used in places with serious erosion and corrosion such as marine equipment and chemical equipment.
Generally olybdenum is used as the matrix. When other elements such as titanium, zirconium, hafnium, tungsten and rare earth elements etc. are added, non-ferrous alloys are formed. These alloying elements not only play a role in solid solution strengthening and maintaining low-temperature plasticity for molybdenum alloys, but also can form the stable carbide. This new substance can improve the strength and recrystallization temperature of the alloy. So, molybdenum-based alloys are used for high heating contact components, stainless steel stamping parts, extrusion abrasive tools, melting furnace electrodes, metal stamped parts, and spacecraft metal parts due to their good strength, mechanical stability, and high ductility.
What is more, molybdenum has good electrical conductivity and high temperature resistance. It is widely used in the manufacture of spiral filament core wires, lead wires and other metal contact components. Of course, it is often used in temperature controllers as electrical alloy material such as metal stamping parts etc.
Working principle of temperature controllers
Usually temperature controller mainly includes mechanical and electronic type. Mechanical type use two layers of metals with different thermal expansion coefficients mechanically pressed together. Its curvature will change as the change of temperatures. When the curvature reaches a certain level, the circuit is connected or disconnected to make the refrigeration or heating equipment work. Electronic type can convert the temperature signal into an electrical signal through thermocouple, platinum resistance and other temperature sensing devices, and operate the heating or cooling equipment by controlling the relay through the single-chip, PLC and other circuits.