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Cathode electronic powder for dual-group fluorescent lamp and its making method

A technology of fluorescent lamps and electronic powder, which is applied in cold cathode manufacturing, electrode system manufacturing, discharge tube/lamp manufacturing, etc. It can solve the problems of small emission, short life, high energy consumption, etc. Effect of small size and energy consumption reduction

Inactive Publication Date: 2008-08-13
西安天涂建筑工程有限公司
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Problems solved by technology

[0004] The invention solves the technical problems in the background technology that the cathode electron powder of fluorescent lamps is easy to fall off, easy to emit light, high energy consumption, short life, and small emission

Method used

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Embodiment Construction

[0020] A two-component fluorescent lamp cathode electronic powder and a preparation method thereof. The cathode electronic powder is composed of A and B components, and the A component is combined with the fluorescent lamp cathode through molding, coating and sintering methods. Component B is manufactured using eutectic technology, and is coated on component A using traditional techniques to form a two-component electronic powder layer, which realizes two electron emissions when the fluorescent lamp is energized and working. Component A consists of metal tungsten, ZrO 2 , S i C. The yttrium oxide mixture is made by a special process, and the B component is made of C a O, B a O, strontium oxide, and lanthanum oxide are mixed and made by a special process. The formula of component A of the electronic powder is 5%-25%, and the formula of component B is 25%-95%. The composition of component A in electronic powder is 45%-65% of metal tungsten; ZrO 2 Or SiC or their mixture 15%...

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Abstract

A fluorescent lamp cathode electric powder with two components is provided. The electric powder is constituted by conductive material A and ceramic material B, wherein the A component is constituted by tungsten powder Zro, Src and yttrium oxide additive; the B component is mixed by barium oxide, calcium oxide, strontium oxide, zirconium oxide, holmium oxide, and lanthanum oxide additive. The mass percent of the A component in the electric powder is 5-25%, B component 25-95%. The invention solves the problems that the fluorescent lamp cathode electric powder in the background technology is easy to fall off, split and has a high energy consumption, short life and small emission quantity.

Description

technical field [0001] The invention relates to a fluorescent lamp cathode electronic powder, in particular to a two-component fluorescent lamp cathode electronic powder and a preparation method thereof. Background technique [0002] "Fluorescent lamp production process and technology" stated that "the electronic powder used in fluorescent lamps is made of 56% barium oxide, 38% strontium oxide, 6% calcium oxide and 5% zirconium oxide", February 16, 2005 The published publication number is the invention patent of CN1581398A, and its formula is: barium oxide 52.15%, calcium oxide 3.54%, strontium oxide 30.75%, holmium oxide 2.33%, and lanthanum oxide 5.11%. [0003] The technical problem solved by the present invention and the above-mentioned patent are the same as the effect of the patented technology in that it provides a fluorescent lamp cathode electronic powder with low energy consumption, large emission and long service life, which solves the problem of high energy consu...

Claims

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Application Information

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IPC IPC(8): H01J1/14H01J61/06H01J9/02
Inventor 李勇赵倩文
Owner 西安天涂建筑工程有限公司
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