Molybdenum is a silvery-white metal with a high melting point that does not oxidize in air at room temperature. Molybdenum is widely used in the steel industry, petroleum industry, chemical industry, electrical and electronic engineering, medicine and agriculture due to its advantages such as high strength, high melting point, corrosion and wear resistance. Molybdenum wire is a common molybdenum product. This article discusses the types and applications of molybdenum wire.
Types and Uses of Molybdenum Wire
Types of molybdenum wire
Molybdenum wire can be divided into pure molybdenum wire, high temperature molybdenum wire, heat sprayed molybdenum wire and cut molybdenum wire depending on the material. Molybdenum wire has different properties and applications depending on the type.
The use of molybdenum wire
Pure molybdenum wire is characterized by high purity and blackish gray surface. Alkaline cleaning can produce white molybdenum wire.
Because of its good electrical conductivity, it is often used as a component of light bulbs. For example, it is sometimes used in tungsten filament holders, halogen lamp wires and electrodes for discharge lamps and vacuum tubes.
It is also used in aircraft windshields for de-icing as a heating element and in electronic and power lamp grids.
High-temperature molybdenum wire is manufactured from a pure molybdenum base with the addition of the rare earth element lanthanum. This molybdenum-based alloy is popular because it has a higher recrystallization temperature than pure molybdenum and is stronger and more ductile at high temperatures. In addition, when heated above its recrystallization temperature and machined, the alloys are resistant to bending and are stable in joints due to the cross-linked grain structure.
For this reason, it is often used in high-temperature materials of construction, such as fastening bolts, nuts and screws, halogen lamp bases, heating elements for high-temperature furnaces and conducting wires for quartz and high-temperature ceramic materials.
Thermally sputtered molybdenum wire is mainly used in the manufacture of wear-sensitive automotive parts such as piston rings, gearbox timing parts and control forks. By forming a thin film on the wear surface, it provides excellent lubrication and wear resistance in vehicles and parts subjected to high mechanical loads.
Molybdenum wire is used in wire cutting techniques to cut virtually all conductive materials, including metals such as steel, aluminum, brass, titanium and other alloys and super alloys.