Alloy wire of compensating wire for thermocouple
The function of the thermocouple compensation wire is to extend the thermoelectric electrode, that is, to move the cold end of the thermocouple, and to connect with the display instrument to form a temperature measurement system. The operating temperature is - 25~200 ℃.
Nickel alloys are alloys composed of nickel-based additions of other elements. Nickel has good mechanical, physical and chemical properties. Adding appropriate elements can improve its oxidation resistance, corrosion resistance, high temperature strength and improve some physical properties.
Introduction of pure nickel wire and nickel mesh
Pure nickel wire is mainly used to manufacture electron tube cathode, anode grid side rod, tube needle, etc. It has good mechanical properties and corrosion resistance to alkalis, such as sodium hydroxide. It also has better electrical, thermal and magnetic controllability characteristics. Applications include food and synthetic fibre processing, heat exchangers and the chemical and power industries. Typical manufacturing resistance thermometers, internal parts of the tube, such as grid side rods, struts and external parts of the tube, such as lead wires.
Features and Principles of Vacuum Induction Furnace
With the rapid development of my country in the fields of high-speed rail, nuclear power, petroleum and petrochemical, aerospace and other fields, higher and higher requirements are put forward for steel materials: higher strength, harsher corrosion resistance, high temperature resistance, and stronger fatigue resistance etc., and vacuum induction melting technology is an important guarantee for the production of high-end special steel. Among many special heating or melting methods, induction heating technology is used to smelt and prepare metal materials, and it can accurately control gases, non-metallic inclusions and trace harmful substances in steel. The level of impurities plays a crucial role. This paper introduces the development process of induction furnace and vacuum induction melting technology, as well as the application of induction melting technology in different occasions. According to the structure of different vacuum induction furnace types, compare their advantages and disadvantages. Looking forward to the future development direction of vacuum induction furnace, and expounding its development trend. The development and progress of vacuum induction furnaces are mainly reflected in the gradual improvement of the overall structure of the equipment, the increasingly obvious trend of large-scale equipment, and a more intelligent control system.
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