CN1581398A - Special fluorescent lamp cathode electronic powder - Google Patents
Special fluorescent lamp cathode electronic powder Download PDFInfo
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- CN1581398A CN1581398A CN 03143983 CN03143983A CN1581398A CN 1581398 A CN1581398 A CN 1581398A CN 03143983 CN03143983 CN 03143983 CN 03143983 A CN03143983 A CN 03143983A CN 1581398 A CN1581398 A CN 1581398A
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- fluorescent tube
- electronics powder
- fluorescent lamp
- cathode fluorescent
- oxide
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Abstract
Comparing with traditional electronic powder of cathode of fluorescent lamp, the disclosed electronic powder made from mixed barium oxide, strontium oxide, calcium oxide and other rare metal oxides through special technique provides features of reduced conductivity, raised vapor pressure and decreasing work function. Thus, the disclosed fluorescent lamp possesses advantages of reduced start up voltage and current, low energy consumption, large emission quantity and long service life.
Description
Technical field
The present invention relates to a kind of electric source material, refer to a kind of electronics powder that the admixture rare-earth oxide is made in fluorescent tube cathode electronics powder especially.
Background technology
" the employed electronics powder of fluorescent lamp is to adopt barium monoxide 56%, strontium oxide strontia 38% and calcium oxide 6% and add 5% zirconia to make " (seeing " fluorescent lamp production process and technology " P115).
Since what years, prescription and above-mentioned prescription that cathode fluorescent tube electronics powder is adopted are similar.Although there has been very big improvement in Dutch Philip (Philips) company on its manufacture craft, but its " ternary salt " (barium monoxide, strontium oxide strontia, calcium oxide) intrinsic steam force down (BaO1297 ℃, SrO1517 ℃, CaO1297 ℃), the easy problem of sputter, be traditional cathode fluorescent tube technology can not solve.
Summary of the invention
In order to solve traditional cathode fluorescent tube electronics powder energy consumption height, the life-span is short, emission measure is little problem.The purpose of this invention is to provide the cathode fluorescent tube electronics powder that a kind of energy consumption is low, the life-span is long, emission measure is big.This cathode fluorescent tube electronics powder adopts alkaline earth oxide to mix the scheme made from rare-earth oxide, reduces the conductance of electronics powder, improves vapour pressure, reduces work function.Thereby reduce the fluorescent tube starting resistor, and reduce starting current, reduce cathode fall, reduce the bombardment that negative electrode suffered, reduce the lamp tube ends blackout, prolonging lamp tube useful life.
To achieve these goals, the present invention adopts following design: a kind of special cathode fluorescent tube electronics powder, it is characterized in that: described special cathode fluorescent tube electronics powder, form by alkaline earth oxide-barium monoxide, strontium oxide strontia, calcium oxide and rare-earth oxide-yittrium oxide, lanthana and holimium oxide etc.
Owing to adopt above design, thereby traditional cathode fluorescent tube electronics powder energy consumption height, the life-span is short, emission measure is little problem have been solved.The cathode fluorescent tube electronics powder that a kind of energy consumption is low, emission measure is big, the life-span is long is provided.This cathode fluorescent tube electronics powder adopts alkaline earth oxide to mix the scheme made from rare-earth oxide, has reduced the conductance of cathode fluorescent tube electronics powder, has improved its vapour pressure, has reduced work function.Thereby fluorescent lamp starting voltage is reduced, starting current reduces.The bombardment that the electronics powder is suffered when having reduced fluorescent lamp operation has reduced cathode fall, thereby has finally reduced fluorescent tube two ends blackout, and big spoke degree ground has prolonged the useful life of fluorescent tube.
Specific embodiments
1, special cathode fluorescent tube electronics powder prescription: barium monoxide 52.15%, strontium oxide strontia 30.75%, calcium oxide 3.54%, yittrium oxide 6.12%, lanthana 5.11%, holimium oxide 2.33%.
2, manufacturing process for example: add pure water and diluted acid in glass, add the material of preparing by above prescription then, feed ammonia etc. after intensification stirs, make above material sedimentation back filtration fully, drying, can make-special cathode fluorescent tube electronics powder.
Claims (3)
1, a kind of special cathode fluorescent tube electronics powder, it is characterized in that: described electronics powder is to be made by alkaline earth oxide and rare-earth oxide.
2, special cathode fluorescent tube electronics powder according to claim 1, it is characterized in that: described electronics powder is to be made by barium salt, strontium salt, calcium salt, yttrium salt, lanthanum salt and holmium salt etc.
3, special cathode fluorescent tube electronics powder according to claim 1 is characterized in that: described special cathode fluorescent tube electronics powder can use by traditional lamp manufacturing process, also can be made into ceramic cathode and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143983 CN1581398A (en) | 2003-08-07 | 2003-08-07 | Special fluorescent lamp cathode electronic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143983 CN1581398A (en) | 2003-08-07 | 2003-08-07 | Special fluorescent lamp cathode electronic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1581398A true CN1581398A (en) | 2005-02-16 |
Family
ID=34579561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03143983 Pending CN1581398A (en) | 2003-08-07 | 2003-08-07 | Special fluorescent lamp cathode electronic powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1581398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601057A (en) * | 2013-11-29 | 2014-02-26 | 武桥重工集团股份有限公司 | Idler-wheel type guiding device used for elevator |
-
2003
- 2003-08-07 CN CN 03143983 patent/CN1581398A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601057A (en) * | 2013-11-29 | 2014-02-26 | 武桥重工集团股份有限公司 | Idler-wheel type guiding device used for elevator |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |