JPS57209657A - Apparatus for coating powder of fluorescent material - Google Patents
Apparatus for coating powder of fluorescent materialInfo
- Publication number
- JPS57209657A JPS57209657A JP9486481A JP9486481A JPS57209657A JP S57209657 A JPS57209657 A JP S57209657A JP 9486481 A JP9486481 A JP 9486481A JP 9486481 A JP9486481 A JP 9486481A JP S57209657 A JPS57209657 A JP S57209657A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent material
- bulb
- sent
- air
- nozzle
- 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
- Electrostatic Spraying Apparatus (AREA)
Abstract
PURPOSE: To make it possible to form a constant and uniform fluorescent material layer on the inner surface of a bulb, by a method wherein a fluorescent material is sent to an injecting nozzle when coated on the inner surface of the bulb and sent to a fluorescent material receiving container through a powder separating apparatus when coating is not carried out.
CONSTITUTION: Air is sent into an injector 2 provided to a fluorescent material receiving container 1 receiving a fluorescent material 1a from an air send-in device to suck the fluorescent material 1a in the container 1 and said fluorescent material 1a is discharged along with air from a discharge port. An electrostatic powder coating nozzle 5 connected to said discharge port through a powder transfer pipe 4 as well as having a charging apparatus mounted therein injects the fluorescent material to the inner surface of a bulb such as a fluorescent lamp or the like from the leading end thereof. In addition, a three-way change- over valve 6 provided on the way of the transfer pipe 4 communicates the injector 2 and the nozzle 5 for a predetermined time when the bulb 7 is corresponded to the nozzle 5 as well as a powder separating apparatus 8 communicated with one port of the valve 6 separates the fluorescent material and air sent thereinto to send the separated fluorescent material into the container 1.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9486481A JPS57209657A (en) | 1981-06-19 | 1981-06-19 | Apparatus for coating powder of fluorescent material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9486481A JPS57209657A (en) | 1981-06-19 | 1981-06-19 | Apparatus for coating powder of fluorescent material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57209657A true JPS57209657A (en) | 1982-12-23 |
Family
ID=14121895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9486481A Pending JPS57209657A (en) | 1981-06-19 | 1981-06-19 | Apparatus for coating powder of fluorescent material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57209657A (en) |
-
1981
- 1981-06-19 JP JP9486481A patent/JPS57209657A/en active Pending
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