High-strength high-melting point low-mercury content amalgam

Abstract

The invention discloses high-strength high-melting point low-mercury content amalgam. The high-strength high-melting point low-mercury content amalgam comprises, by weight, 3-9% of mercury, 7-9.5% of zinc, 8-12% of tin, 26-53% of indium and 30-53% of bismuth. The high-strength high-melting point low-mercury content amalgam has the advantages that 1, the amalgam particles have high compressive strength, are not damaged in product transport and use and guarantee round exhaust vehicle automatic production; 2, the amalgam has high saturability, mercury in the amalgam particles is not separated, and the amalgam particles are non-sticky so that particle mobility is good; and 3, an amalgam melting point is in a range of 300-400 DEG C and in secondary sealing-off of an energy saving lamp, the amalgam particles in an exhaust rod do not melt and do not fall into a tube so that powder layer scratch is avoided, and the amalgam particles are always located at an exhaust rod fixing position so that consistency of tube electrical parameters is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of new materials for electric light sources, and in particular relates to a solid mercury with high strength, high melting point and low mercury content for energy-saving lamps. Background technique [0002] Currently, the high-temperature amalgam widely used in energy-saving lamps is generally composed of Bi, In, and Hg. Due to the absence of zinc and tin in the alloy, there are several problems in the use of such high-temperature amalgam products: 1. The reason is that the saturation of amalgam is low, the mercury in the solid mercury particles is easy to precipitate, and the particles stick together; the second is that the alloy particles have low compressive strength and are easily broken during transportation and use, which affects the appearance quality of energy-saving lamps; During the production of lamps, the particles are easy to melt, and fall into the fluorescent lamp tube through the exhaust rod...

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Problems solved by technology

[0002] Currently, the high-temperature amalgam widely used in energy-saving lamps is generally composed of Bi, In, and Hg. Due to the absence of zinc and tin in the alloy, there are several problems in the use of such high-temperature amalgam products: 1. The reason is that the saturation of amalgam is low, the mercury in the solid mercury particles is easy to precipitate, and the particles stick together; the second is that the alloy particles have low compressive strength and are easily broken during transportation and use, which affects the appearance quality of energy-saving lamps; During the production of lamps, the particles are easy to melt and fall into the fluorescent lamp tube through the exhaust rod, scratching the powder coating of the tube wall, which also affects the quality of the energy-saving lamp tube

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