A tungsten needle is a needle-shaped rod made of tungsten. Tungsten is a chemical element with the symbol W and atomic number 74. It is a heavy, hard, high melting point metal that is often used to make tools and materials that are hot and strong.
Tungsten needle is a slender metal needle made of tungsten, which is usually used as heating element of high-temperature furnace, filament of electron tube, electrode of electric light source, etc. It has the advantages of high melting point, high density, high thermal conductivity, high corrosion resistance and excellent ductility, so it has wide applications in many fields.
The main component of tungsten needles is tungsten, usually in the form of pure tungsten or tungsten alloy. Tungsten is a high melting point metal with a melting point as high as 3410°C, which allows the tungsten needle to maintain its strength and stability at high temperatures. In addition, tungsten needles also have good electrical conductivity and high thermal conductivity, which make them widely used in the fields of electron tubes and electric light sources.
In addition to electrical conductivity and high thermal conductivity, tungsten needles also have excellent ductility and plasticity. This allows tungsten needles to be machined into a variety of shapes and sizes to meet the needs of different applications. In addition, tungsten needles also have good corrosion resistance and high temperature resistance, and can be used for a long time in high temperature and corrosive environments.
The manufacturing process of tungsten needles includes material selection, heating treatment, drawing treatment, further processing, polishing treatment and quality inspection. During the manufacturing process, the control of parameters such as temperature and pressure is very important to ensure that the shape and size of the tungsten needle meets the requirements and to avoid cracks and other defects. In addition, the cleanliness and humidity in the manufacturing environment also need to be strictly controlled to avoid impurities and contaminants from affecting the quality of tungsten needles.
Tungsten needle is a slender metal needle made of metal material with excellent performance and high melting point, and has a wide range of applications. Its high melting point, high density, high thermal conductivity, high corrosion resistance and excellent ductility make it widely used in heating elements of high-temperature furnaces, filaments of electron tubes, electrodes of electric light sources and other fields.
In some specific applications, a tungsten needle may refer to a type of stylus used in record players, such as vinyl record players. This type of stylus is typically made from a tungsten alloy because its hardness and wear resistance make it suitable for producing high-quality audio output on the record surface.
Additionally, in some medical applications, a tungsten needle may also refer to an elongated tungsten object used for puncture or sampling. Due to tungsten’s high melting point and hardness, this type of tungsten needle can be used in some medical procedures that require a high degree of precision and durability.
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