JPS57119878A - Method for electrostatic painting of non-linear tube bulb - Google Patents
Method for electrostatic painting of non-linear tube bulbInfo
- Publication number
- JPS57119878A JPS57119878A JP616381A JP616381A JPS57119878A JP S57119878 A JPS57119878 A JP S57119878A JP 616381 A JP616381 A JP 616381A JP 616381 A JP616381 A JP 616381A JP S57119878 A JPS57119878 A JP S57119878A
- Authority
- JP
- Japan
- Prior art keywords
- bulb
- powder
- voltage
- phase
- wires
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
PURPOSE: To form a uniform film of powder on the inside surface of an annular glass bulb by spraying the powder applied with a electrostatic voltage in the bulb, and applying 3-phase AC to a conductor wound spirally on the outside circumference of the bulb.
CONSTITUTION: Phosphor powder of about 8μ average grain size is ejected from a spray gun 2 at about 20g/min ratio together with, for example, 0.1kg/cm2 compressed air, to the opening part at one end of a glass bulb 1 for annular tube bulbs. The outside circumference of the bulb 1 is wound spirally with conductor wires 6a, 6b and 6c molded in holders 7a and 7b. If, for example, 2KV 3-phase AC voltage is applied to the wires 6a, 6b and 6c, the max. voltage of the induction electric field formed by the conductor wires moves, thereby inducing and scattering the phosphor powder successively toward the other end of the bulb 1. The powder applied with about 60KV ⊖ electrostatic voltage by an electric power source 5 is attracted and stuck uniformly to the inside wall surface of the bulb 1 which is applied with ⊕.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP616381A JPS57119878A (en) | 1981-01-19 | 1981-01-19 | Method for electrostatic painting of non-linear tube bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP616381A JPS57119878A (en) | 1981-01-19 | 1981-01-19 | Method for electrostatic painting of non-linear tube bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57119878A true JPS57119878A (en) | 1982-07-26 |
Family
ID=11630855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP616381A Pending JPS57119878A (en) | 1981-01-19 | 1981-01-19 | Method for electrostatic painting of non-linear tube bulb |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57119878A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61284027A (en) * | 1985-06-03 | 1986-12-15 | ゼネラル・エレクトリツク・カンパニイ | Method and apparatus for covering fluorescent lamp tube and fluorescent lamp |
| KR100770315B1 (en) | 2006-09-28 | 2007-10-25 | 강전권 | A inside diameter coating apparatus and method of a small pipe |
| JP2011526051A (en) * | 2008-06-05 | 2011-09-29 | オスラム アクチエンゲゼルシャフト | Method and apparatus for forming a coating over the inner wall of a tube |
-
1981
- 1981-01-19 JP JP616381A patent/JPS57119878A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61284027A (en) * | 1985-06-03 | 1986-12-15 | ゼネラル・エレクトリツク・カンパニイ | Method and apparatus for covering fluorescent lamp tube and fluorescent lamp |
| JPH0588494B2 (en) * | 1985-06-03 | 1993-12-22 | Gen Electric | |
| KR100770315B1 (en) | 2006-09-28 | 2007-10-25 | 강전권 | A inside diameter coating apparatus and method of a small pipe |
| JP2011526051A (en) * | 2008-06-05 | 2011-09-29 | オスラム アクチエンゲゼルシャフト | Method and apparatus for forming a coating over the inner wall of a tube |
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