Metal Alloy 99.95% High Purity Tungsten Wire Filament

Description of Tungsten Wire Filament ：

High melting point: The melting point of tungsten wire is as high as 3410℃ so that it can maintain its structure's stability and performance in a high-temperature environment. Therefore, tungsten wire can manufacture components and systems in high-temperature environments, such as lighting fixtures, electronic equipment, etc.

Corrosion resistance: Tungsten wire has good corrosion resistance in most chemical environments, so it can be used to manufacture components and structures in the chemical industry, such as reactors and high-temperature furnaces.

Good mechanical properties: Tungsten wire has good mechanical properties, including high strength, hardness, and toughness. These characteristics make tungsten wires perform well in high loads and shock environments.

High density: Tungsten wire has a high viscosity, usually about 19.3g/cm³. This high density gives tungsten wire good stability in the manufacturing process and can provide better weight distribution.

Good plasticity: Tungsten wire has good plasticity and can change its shape and size by plastic deformation. This property gives tungsten wire good processability and adaptability in manufacturing.

Good high-temperature oxidation resistance: At high temperatures, the surface of tungsten wire will form a dense oxide film, effectively preventing further oxidation. This characteristic makes tungsten wire have good protection in high-temperature environments.

Good fatigue resistance: Tungsten wire has good fatigue resistance and can withstand periodic and impact loads. This property makes tungsten wire have good durability and reliability in manufacturing.

Non-toxic: Tungsten wire itself is non-toxic and will not cause harm to human health. However, long-term exposure to tungsten wire may cause skin irritation and respiratory disease, so appropriate protective measures must be taken.

High strength: Tungsten wire has a high power and can withstand significant tensile and bending stresses. This strength makes tungsten wire durable and reliable in the manufacturing process.

Applications of Tungsten Wire Filament ：

Electronic field: Tungsten wire has a wide range of applications in electronics. With its high melting point, good electrical conductivity, and corrosion resistance, tungsten wire is used to manufacture various components in electronic devices, such as resistors, capacitors, and tubes. 

Lighting field: Tungsten wire also has a wide range of applications in the lighting field. Because of its high melting point, good electrical conductivity, and corrosion resistance, tungsten wire is used to manufacture various lighting fixtures, such as bulbs and fluorescent tubes. 

Nuclear industry: Tungsten wire is also widely used in the nuclear industry. Due to its high melting point, good corrosion resistance, and high-temperature oxidation resistance, tungsten wire is used to manufacture various components and structures in nuclear reactors, such as fuel rods, control rods, and reactor vessels. 

Automotive field: Tungsten wire is also widely used in the automotive field. Due to its high strength, hardness, and toughness, tungsten wire is used to manufacture various components and structures in automotive parts, such as valves, pistons, and crankshafts. 

Aerospace: Tungsten wire also has a wide range of applications in the aerospace field. Due to its high density, high melting point, and good electrical conductivity, tungsten wire is used to manufacture various components and structures in aerospace spacecraft, such as fuel injectors, guide blades, turbine blades, and rocket nozzles. 

Production Method of Tungsten Wire Filament ：

Powder metallurgy: Powder metallurgy is a traditional method for preparing tungsten wires. The technique is to put tungsten powder into the mold, sinter, and extrude at high temperature to make a tungsten billet. The tungsten billet is then processed and heat-treated to obtain the desired tungsten wire. The advantage of powder metallurgy is that the prepared tungsten wire has high purity and high density, and the disadvantage is that the production process is complex and the production cost is high.

Smelting method: The smelting method prepares tungsten wire by melting tungsten material at high temperatures. The technique is to melt tungsten in a high-temperature furnace and then spin through the spinning mechanism to obtain tungsten wire. The advantage of the smelting method is that the production process is simple and can be large-scale, but the disadvantage is that the purity of the prepared tungsten wire is low.

Electrolysis: Electrolysis is a method of preparing tungsten wire by electrolysis of tungsten solution. The technique is to put the tungsten solution into the electrolytic tank and reduce the tungsten into tungsten powder by electrolysis. Then, the obtained tungsten powder is processed and heat-treated to receive the required tungsten wire. The advantage of the electrolysis method is that the production process is simple and can be produced on a large scale, but the disadvantage is that the purity of the prepared tungsten wire is low.

Hydrogen reduction method: The hydrogen reduction method reduces tungsten compounds in a hydrogen environment at high temperatures to prepare tungsten wires. The technique is to put tungsten compounds such as tungstate or trioxide into a hydrogen environment and conduct a reduction reaction at high temperatures to obtain tungsten wire. The advantages of the hydrogen reduction method are high purity and good performance, but the disadvantages are high production costs.

Machining method: The machining method is a method of preparing tungsten wire by machining tungsten material. The technique is to put the tungsten material into the machining equipment and process the tungsten material into the required tungsten wire shape and size through processing technology such as turning and milling. The advantage of the machining method is high production efficiency and low cost, and the disadvantage is that the utilization rate of tungsten material is soft.

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