Molybdenum is a true “all-round metal”. Wire products are used in the lighting industry, semiconductor substrates for power electronics, glass melting electrodes, hot zones of high-temperature furnaces, and sputtering targets for flat-panel displays for coating solar cells. They are ubiquitous in daily life, both visible and invisible.
As one of the most valued industrial metals, molybdenum has a very high melting point and does not soften or expand much even under very high pressure and temperature. Due to these characteristics, molybdenum wire products have a wide range of applications, such as automotive and aircraft parts, electric vacuum devices, light bulbs, heating elements and high-temperature furnaces, printer needles and other printer parts.
High-temperature molybdenum wire and wire-cut molybdenum wire
Molybdenum wire is divided into pure molybdenum wire, high-temperature molybdenum wire, spray molybdenum wire and wire-cut molybdenum wire according to the material. Different types have different characteristics and their uses are also different.
Pure molybdenum wire has high purity and a black-gray surface. It becomes white molybdenum wire after alkali washing. It has good electrical conductivity and is therefore often used as a part of a light bulb. For example, it can be used to make supports for filaments made of tungsten, to make leads for halogen bulbs, and electrodes for gas discharge lamps and tubes. This type of wire is also used in aircraft windshields, where it acts as a heating element to provide defrosting, and is also used to make grids for electron tubes and power tubes.
Molybdenum Wire for Light Bulbs
High-temperature molybdenum wire is made by adding lanthanum rare earth elements to pure molybdenum. This molybdenum-based alloy is preferred over pure molybdenum because it has a higher recrystallization temperature, is stronger and more ductile after exposure to high temperatures. In addition, after heating above its recrystallization temperature and processing, the alloy forms an interlocking grain structure that helps resist sagging and structural stability. Therefore, it is often used in high-temperature structural materials such as printed pins, nuts and screws, halogen lamp holders, high-temperature furnace heating elements, and leads for quartz and high-temperature ceramic materials.
Sprayed molybdenum wire is mainly used in automotive parts that are prone to wear, such as piston rings, transmission synchronization components, selector forks, etc. A thin coating forms on the worn surfaces, providing excellent lubricity and wear resistance for vehicles and components subject to high mechanical loads.
Molybdenum wire can be used for wire cutting to cut virtually all conductive materials, including metals such as steel, aluminum, brass, titanium, and other types of alloys and superalloys. The hardness of the material is not a factor in wire EDM machining.
Post time: Jan-17-2025