CN1046413A - Glass tube and molybdenum rod (silk) airtight connection - Google Patents
Glass tube and molybdenum rod (silk) airtight connection Download PDFInfo
- Publication number
- CN1046413A CN1046413A CN 90102852 CN90102852A CN1046413A CN 1046413 A CN1046413 A CN 1046413A CN 90102852 CN90102852 CN 90102852 CN 90102852 A CN90102852 A CN 90102852A CN 1046413 A CN1046413 A CN 1046413A
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- glass
- silk
- sealing
- molybdenum
- glass tube
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The invention belongs to electric light source and electric vacuum technology field, is the method for a kind of glass tube and molybdenum rod (silk) hermetic seal, and this method adopts GG17 glass or Pyrex glass, and the molybdenum foil in the general sealing-in has been save in the direct sealing-in of glass and molybdenum filament.Thereby process for sealing is simplified, and machining accuracy improves, and air-tightness is good.And the quartz glass low price that more generally uses of above-mentioned glass, can reduce device cost.The present invention can be used for the making of electric light source goods and other electron tube.
Description
The invention belongs to electric light source and electric vacuum technology field, is the method for a kind of glass tube and metal hermetic seal.
In electron tube, such as in bulb, often glass tube and metal need be sealed airtightly, guarantee that the coupling part can not leak gas when (energising) works.With single-ended tungsten halogen lamp is example (seeing accompanying drawing 1), cell-shell 1 adopting quartz glass, and filament 2 adopts tungsten filament, and lead-out wire 4 adopts molybdenum rod (silk).Since quartz glass and the direct sealing-in of molybdenum filament, poor air-tightness, so adopt molybdenum foil 3 and quartz glass sealing-in, squeezing machine is adopted in sealing-in, 5 is the clamp position.Adopt this airtight connection, molybdenum filament and molybdenum foil point postwelding need be drawn, technology is complicated, and the quartz glass price is more expensive.
The present invention adopts GG17 glass or pyrex (Pylex) glass to make cell-shell, with directly hermetic seal of molybdenum rod (silk).Molybdenum foil in the middle of this technology has been save has been simplified the sealing-in program, has improved machining accuracy, and air-tightness is good, and finished product is evacuated and keeps vacuum state in the last 1 year.In addition, GG17 glass or Pyrex glass be than the quartz glass low price, thereby can reduce device cost.In the making of electron tube or electric light source, be widely used.
Direct method for sealing of the present invention specifically can adopt following dual mode: a kind of is vacuum seal, is about to place GG17 or Pyrex glass pipe 7 through the molybdenum rod (silk) 6 of clean, sees Fig. 2.Vacuumize, on flame, process then, make glass and molybdenum filament sealing-in.Another kind is to adopt the squeezing machine sealing-in, sees Fig. 3.Need protective atmosphere during clamp, generally with argon gas or nitrogen.1 is cell-shell among the figure, and 2 is filament, and 4 is molybdenum rod (silk), and 5 is the clamp position.The diameter of molybdenum rod (silk) is determined according to the needs of device, generally below φ 0.8mm.
The present invention can also be used to make other electron tube, as discharge tube except that can be applicable to make the bulb.
Embodiment: φ 14mmGG17 or Pyrex glass pipe are processed into required shape, as the bulb shell 1 among Fig. 3.The molybdenum filament 4 of cutting φ 0.35mm.Glass bulb, molybdenum filament are carried out clean.Filament 2 and two molybdenum filament spot welding with 12V, 50W.Logical argon shield with the gas burner heating, gets final product with the squeezing machine clamp.Vacuumize the need inert gas that charges into, promptly make the lamp of operate as normal under 12V, 50W situation.
Fig. 1 is single-ended tungsten halogen lamp sealing structure figure
Fig. 2 is molybdenum filament and the direct vacuum tight sealing-in of glass tube schematic diagram
Fig. 3 is molybdenum filament and the direct clamp sealing structure of glass tube schematic diagram
Claims (2)
1, the method for a kind of glass tube and molybdenum rod (silk) hermetic seal is characterized in that glass adopts GG17 or Pyrex glass, directly sealing-in of glass tube and molybdenum rod (silk).
2, a kind of glass tube and molybdenum rod (silk) airtight connection is characterized in that adopting following two kinds of direct sealing-in modes: a kind of is the direct sealing-in of vacuum, and a kind of is to adopt squeezing machine directly sealing-in under protective atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102852 CN1046413A (en) | 1990-05-07 | 1990-05-07 | Glass tube and molybdenum rod (silk) airtight connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102852 CN1046413A (en) | 1990-05-07 | 1990-05-07 | Glass tube and molybdenum rod (silk) airtight connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1046413A true CN1046413A (en) | 1990-10-24 |
Family
ID=4877735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102852 Pending CN1046413A (en) | 1990-05-07 | 1990-05-07 | Glass tube and molybdenum rod (silk) airtight connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046413A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077554C (en) * | 1998-12-17 | 2002-01-09 | 张入通 | Glass-metal aluminum wire hot press sealing process |
| CN106594544A (en) * | 2017-02-04 | 2017-04-26 | 江苏银晶光电科技发展有限公司 | LED lamp bead capable of replacing halogen lamp and manufacturing process thereof |
-
1990
- 1990-05-07 CN CN 90102852 patent/CN1046413A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077554C (en) * | 1998-12-17 | 2002-01-09 | 张入通 | Glass-metal aluminum wire hot press sealing process |
| CN106594544A (en) * | 2017-02-04 | 2017-04-26 | 江苏银晶光电科技发展有限公司 | LED lamp bead capable of replacing halogen lamp and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |