White tungsten wire surface after electrolytic cleaning is polished tungsten wire. The tungsten surface is smooth, clean, showed a uniform silver-gray metallic luster, wire diameter uniform molding performance, filament, long life, high luminous efficiency. Widely used in electric industry, the production of various types of vacuum tubes. Electric light industry production of H-series car lights, halogen lamps, and other specialty bulbs with filament.
anti-sag tungsten wire
Sag tungsten doped K (potassium) or other element by element, in order to achieve the effect of non-sag tungsten wire. Doping with K, can be formed foam tungsten, tungsten filament which can prevent recrystallization. Moreover, they are also responsible for their outstanding non-sag tungsten at high temperature under a glowing filament of low resistance. About 90% is used for anti-sag tungsten incandescent lamps.
Anti-sag tungsten wire, applicable to non-sag tungsten material, the anti-sag tungsten wire, tungsten share properties. For non-sag tungsten light or the heating element in the use of dopant materials, they can be less vibration.
Application of anti-sag tungsten
Automobiles and motorcycles sag tungsten wire lamp, one of the most important applications. When used in this lamp filament sag tungsten wire, wire can be used for cars and motorcycles of the most effective role in achieving stable light from the lamp. Incandescent applications have the same effect.
Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
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