CN1959912B - Indium seal type luminescent screen, and technique for preparing the display tube of using the luminescent screen - Google Patents
Indium seal type luminescent screen, and technique for preparing the display tube of using the luminescent screen Download PDFInfo
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- CN1959912B CN1959912B CN200610022073A CN200610022073A CN1959912B CN 1959912 B CN1959912 B CN 1959912B CN 200610022073 A CN200610022073 A CN 200610022073A CN 200610022073 A CN200610022073 A CN 200610022073A CN 1959912 B CN1959912 B CN 1959912B
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- indium
- groove
- sealing ring
- luminescent screen
- metal sealing
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- 229910052738 indium Inorganic materials 0.000 title claims abstract description 96
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910000679 solder Inorganic materials 0.000 claims abstract description 8
- 230000004927 fusion Effects 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 23
- 238000005516 engineering process Methods 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 10
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical group [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010257 thawing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 8
- 230000035939 shock Effects 0.000 abstract description 4
- 239000013307 optical fiber Substances 0.000 abstract 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 13
- 239000011521 glass Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 150000002471 indium Chemical class 0.000 description 2
- 230000010358 mechanical oscillation Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The indium seal type fluorescent screen includes optical fiber faceplate and metal seal ring. Characters are that groove for filling indium is setup on the metal seal ring; clip body is setup on edgeof the optical fiber faceplate; through indium solder filled inside the groove, the clip body is connected and sealed to the metal seal ring. Procedure for preparing image tube of using the fluorescent screen includes steps: fabricating metal seal ring; molding optical fiber faceplate, and process for metallizing the clip body; filling indium into the groove on the ring; sealing faceplate and thering by using indium; fusion welding the indium-sealed ring of the faceplate and shell of tube so as to form the shell of tube, which is sealed to light cathode. Advantages are: cold and heat shock resistance, high intensity mechanical shock resistant, higher stability and service life, carrying out sealing light cathode and shell of tube at same time so as to simplify technical procedure.
Description
Technical field
The present invention relates to the photoelectricity vacuum device, the preparation technology who is specifically related to a kind of indium seal type luminescent screen of image tube and adopts this fluoroscopic image tube.
Background technology
The phosphor screen of existing image tube is with adopting the low glass powder sealing-in between the metal material, following shortcoming is arranged: at first need the respective metal material is handled accordingly, for example annealing in hydrogen atmosphere, hacking or the like, the program complexity, also to carry out strictness control to sealing temperature, process conditions are required than higher, not easy to operate; Secondly product quality is not high, stores up, hangs down storage, the circulation of high low temperature and stress test at height and show stablizing of performance aspect the condition of conforming not high; Once more, the phosphor screen of original low glass sealing-in is easy to the influence owing to welding temperature in welding process, and the heat that makes low glass sealing-in bear incessantly conduction causes STRESS VARIATION and leaks gas.
Summary of the invention
The technical problem to be solved in the present invention is the preparation technology who how a kind of indium seal type luminescent screen is provided and adopts this fluoroscopic image tube, this indium seal type luminescent screen has good stability, cold-resistant thermal shock, anti-high-intensity mechanical oscillation STRESS VARIATION can possess higher stability and useful life; This preparation technology is simple, can carry out simultaneously with the photocathode sealing-in, can simplify technological process and saving plenty of time.
First technical problem of the present invention is to solve like this: a kind of indium seal type luminescent screen is provided, comprise fibre faceplate and metal sealing ring, it is characterized in that: described metal sealing ring is provided with indium groove, the edge of described fibre faceplate is provided with the card body, and described card body and described metal sealing ring are tightly connected by filling out the indium scolder that is located in the indium groove.
Second technical problem of the present invention is to solve like this: a kind of preparation technology of image tube of indium seal type luminescent screen is provided, it is characterized in that may further comprise the steps: A, the processing of metal sealing ring, and indium groove is set; B, fibre faceplate moulding, and the card body is set at its edge, the card body is carried out metalized; C, in the indium groove of the metal sealing ring for preparing, fill out indium: the indium scolder is inserted in the indium groove for preparing, and put in the vacuum pumping system, keep the indium groove level, after carrying out vacuum exhaust, heating indium scolder makes its thawing, after cooling the metal sealing ring is taken out, reject the oxide layer on indium surface in the indium groove; D, fibre faceplate and metal sealing boxing connect: will prepare the indium groove surface that fibre faceplate is placed into the metal sealing ring, and put into once more in the vacuum pumping system, and keep the groove face level of indium groove, after carrying out vacuumizing and exhausting, heating indium scolder stops heating after the thawing, treat its cooling back taking-up; E, indium is sealed fibre faceplate the metal sealing ring with the shell fusion weld, form shell; F, with shell and photocathode sealing-in.
Preparation technology according to the image tube of indium seal type luminescent screen provided by the present invention is characterized in that, after two vacuum exhaust processes finished, vacuum degree was not less than 10
-3Pa.
Preparation technology according to the image tube of indium seal type luminescent screen provided by the present invention is characterized in that described indium scolder is indium tin solder silk or high purity indium, and the purity of described high purity indium is 99.999% or is higher than 99.999%.
Preparation technology according to the image tube of indium seal type luminescent screen provided by the present invention is characterized in that, the temperature of heating indium scolder is 170 ℃-300 ℃; As choose high purity indium, heating-up temperature can be set to 200 ℃.
Indium seal type luminescent screen provided by the present invention and the preparation technology who adopts this fluoroscopic image tube, it mainly is a kind of new-type sealing technology of inventing at the fluoroscopic sealing-in mode of image tube, its core has been to adopt the form of indium envelope that phosphor screen is carried out sealing-in with metal material, possess the peculiar advantage that many existing products do not possess: technology is simple, can carry out simultaneously with the sealing-in of photocathode indium (because of its process conditions identical), save time and cost, properties of product are stable, cold-resistant thermal shock, anti-high-intensity mechanical oscillation STRESS VARIATION, and possessed higher stability and useful life.
Description of drawings
Fig. 1 is the fluoroscopic structural representation of available technology adopting low glass powder sealing-in;
Fig. 2 is the structural representation of indium seal type luminescent screen provided by the present invention;
Fig. 3 is the structural representation that adopts fluoroscopic image tube shown in Figure 2.
Wherein, 1, fibre faceplate, 2, metal parts (fibre faceplate support), 3, low glass powder sealing surface, 4, shell, 5, fibre faceplate, 6, metal sealing ring, 7, indium scolder (indium envelope), 8, the card body, 9, shell, 10, MCP chip, 11, photocathode, 12, photocathode indium envelope, 13, the fusion weld face.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, in the prior art, the fibre faceplate 1 (phosphor screen) of image tube is with adopting the low glass powder sealing-in between the metal parts 2, and fibre faceplate is up-small and down-big, and low glass powder sealing surface 3 is arranged on the downside of metal parts 2.Its process is: 1, metal parts is coated with low glass powder, drying at room temperature melts more than 10 hours then, and temperature is raised in 30 minutes more than 300 degree, and then reduces to room temperature, and is stand-by; 2, sealing-in heats up at a slow speed earlier, is rapidly heated to 450 degree, then cooling naturally again.Its major defect is a complex process, and to the temperature requirement harshness, product bears and do not live heat conducting STRESS VARIATION and gas leakage or the like easily, repeats no more herein.
Fig. 2 is the structural representation of indium seal type luminescent screen provided by the present invention, this indium seal type luminescent screen comprises fibre faceplate 5 and metal sealing ring 6 (being the phosphor screen sealing ring), metal sealing ring 6 is provided with indium groove, the edge of fibre faceplate 5 is provided with card body 8, card body 8 is tightly connected by filling out the indium scolder 7 that is located in the indium groove with metal sealing ring 6, the indium groove of metal sealing ring 6 is arranged on the downside of fibre faceplate 5, and the indium groove opening upwards can avoid fibre faceplate 5 owing to self gravitation comes off.Fig. 3 is the structural representation that adopts fluoroscopic image tube shown in Figure 2, the fluoroscopic metal sealing ring that sealing-in is good is with shell 9 fusion weld (forming fusion weld face 13), make the image tube shell, again image tube shell and photocathode 11 are sealed 12 sealing-ins by the photocathode indium, in image tube, be provided with MCP chip 10.Preparation technology is as follows:
1, metal sealing ring 6 and fibre faceplate 5 are processed into as shown in Figure 2 shape, concrete size decide on cast, is the substrate preparation phosphor screen with fibre faceplate 5, fluoroscopic making and identical with existing technology to the metallization process that blocks body;
2, in the indium groove of phosphor screen sealing ring (the metal sealing ring 6 that promptly prepares), fill out indium, its process is that indium silk or indium tin solder silk (all being current material) are inserted in the phosphor screen sealing ring indium groove for preparing, and put in the vacuum pumping system, keep indium groove face level, carry out vacuumizing and exhausting earlier, treat that vacuum degree is 10
-3When Pa is above, heating is melted indium (or indium tin solder), temperature is melted fully with the high purity indium selected for use or indium tin solder and is as the criterion, different alloy compositions, the fusing point difference, the fusing point of common indium tin solder is 170 ℃ (actual heating-up temperature is between 170 ℃ to 300 ℃), preferably adopt high purity indium, its purity is 99.999% or is higher than 99.999%, and experiment shows that melt temperature can take between 170 ℃ to 300 ℃, wherein 200 ℃ or 240 ℃ or 220 ℃ are all proper, the phosphor screen sealing ring that to fill in indium during to room temperature to be cooled takes out, and rejects the oxide layer on indium surface in the indium groove, and the phosphor screen for preparing is put in the phosphor screen sealing ring, and together put in the vacuum pumping system, carry out indium envelope, operate the same, the groove face level of maintenance indium groove, carry out vacuumizing and exhausting earlier, treat that vacuum degree is 10
-3When Pa was above, heating indium envelope, the temperature of indium envelope were also melted fully with the high purity indium selected for use or indium tin solder and are as the criterion, and to be cooledly took out during to room temperature;
3), the phosphor screen that indium is sealed forms shell with the shell fusion weld: this welding process is welded by laser-beam welding machine, also can adopt other can guarantee bubble-tight welding manner, and the phosphor screen of original low glass sealing-in is easy to leak gas owing to the STRESS VARIATION that thermal conductance that the influence of welding temperature makes low glass sealing-in place bear incessantly conduction causes in welding process;
4), the sealing-in of shell and negative electrode: the preparation of this process and photocathode is identical with existing technology.
Claims (6)
1. indium seal type luminescent screen, comprise fibre faceplate and metal sealing ring, it is characterized in that: described metal sealing ring is provided with indium groove, and the edge of described fibre faceplate is provided with the card body, and described card body and described metal sealing ring are tightly connected by filling out the indium scolder that is located in the indium groove.
2. preparation technology who adopts the image tube of the described indium seal type luminescent screen of claim 1 is characterized in that: may further comprise the steps:
A, the processing of metal sealing ring, and indium groove is set;
B, fibre faceplate moulding, and at its edge the card body is set, card body metalized;
C, in the indium groove of the metal sealing ring for preparing, fill out indium: the indium scolder is inserted in the indium groove for preparing, and put in the vacuum pumping system, keep the indium groove level, after carrying out vacuum exhaust, heating indium scolder makes its thawing, after cooling the metal sealing ring is taken out, reject the oxide layer on indium surface in the indium groove;
D, fibre faceplate and metal sealing boxing connect: will prepare the indium groove surface that fibre faceplate is placed into the metal sealing ring, and put into once more in the vacuum pumping system, and keep indium groove groove face level, after carrying out vacuumizing and exhausting, heating indium scolder stops heating after the thawing, treat its cooling back taking-up;
E, indium is sealed fibre faceplate the metal sealing ring with the shell fusion weld, form shell;
F, with shell and photocathode sealing-in.
3. the preparation technology of the image tube of indium seal type luminescent screen according to claim 2 is characterized in that, after two vacuum exhaust processes finished, vacuum degree all was not less than 10
-3Pa.
4. the preparation technology of the image tube of indium seal type luminescent screen according to claim 2 is characterized in that, described indium scolder is indium tin solder silk or high purity indium, and the purity of described high purity indium is 99.999% or is higher than 99.999%.
5. the preparation technology of the image tube of indium seal type luminescent screen according to claim 2 is characterized in that, the temperature of heating indium scolder is 170 ℃--300 ℃.
6. the preparation technology of the image tube of indium seal type luminescent screen according to claim 2 is characterized in that, selected indium scolder is a high purity indium, and heating-up temperature is 200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610022073A CN1959912B (en) | 2006-10-20 | 2006-10-20 | Indium seal type luminescent screen, and technique for preparing the display tube of using the luminescent screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610022073A CN1959912B (en) | 2006-10-20 | 2006-10-20 | Indium seal type luminescent screen, and technique for preparing the display tube of using the luminescent screen |
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| Publication Number | Publication Date |
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| CN1959912A CN1959912A (en) | 2007-05-09 |
| CN1959912B true CN1959912B (en) | 2010-05-12 |
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| CN200610022073A Active CN1959912B (en) | 2006-10-20 | 2006-10-20 | Indium seal type luminescent screen, and technique for preparing the display tube of using the luminescent screen |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489819A (en) * | 2011-12-26 | 2012-06-13 | 北方夜视科技集团有限公司 | Fluctuated tube body solder vacuum pouring device |
| CN103123886B (en) * | 2012-12-21 | 2015-05-27 | 中国科学院西安光学精密机械研究所 | Hot indium seal sealing device |
| CN105551913A (en) * | 2015-12-15 | 2016-05-04 | 中国科学院西安光学精密机械研究所 | Method for preparing stripe image converter tube |
| CN105428258B (en) * | 2015-12-16 | 2017-11-07 | 济南市半导体元件实验所 | Control the packaging technology of movable fifth wheel in semiconductor cavity |
| CN111623801A (en) * | 2020-06-12 | 2020-09-04 | 湖南二零八先进科技有限公司 | Laser gyro electrode indium seal enhancement device and method |
| CN119069322A (en) * | 2024-08-28 | 2024-12-03 | 中国电子科技集团公司第五十五研究所 | A far ultraviolet imaging detector with collection enhancement function and preparation method thereof |
| CN119725052A (en) * | 2024-11-20 | 2025-03-28 | 中国电子科技集团公司第五十五研究所 | A super second generation image intensifier tube based on cold indium seal structure and its preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086347A (en) * | 1993-03-04 | 1994-05-04 | 中国科学院西安光学精密机械研究所 | Double-near-sticking framing image intensifier |
| CN1406390A (en) * | 2000-01-24 | 2003-03-26 | 株式会社东芝 | Image display device, method of manufacture thereof, and apparatus for charging sealing material |
| CN1632899A (en) * | 2005-01-05 | 2005-06-29 | 河南安彩高科股份有限公司 | A method for manufacturing CRT glass screen |
-
2006
- 2006-10-20 CN CN200610022073A patent/CN1959912B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086347A (en) * | 1993-03-04 | 1994-05-04 | 中国科学院西安光学精密机械研究所 | Double-near-sticking framing image intensifier |
| CN1406390A (en) * | 2000-01-24 | 2003-03-26 | 株式会社东芝 | Image display device, method of manufacture thereof, and apparatus for charging sealing material |
| CN1632899A (en) * | 2005-01-05 | 2005-06-29 | 河南安彩高科股份有限公司 | A method for manufacturing CRT glass screen |
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| CN1959912A (en) | 2007-05-09 |
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Denomination of invention: Indium seal type luminescent screen, and technique for preparing the display tube of using the luminescent screen Effective date of registration: 20160908 Granted publication date: 20100512 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Tianwei Electronics Co,. Ltd. Registration number: 2016510000044 |
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Date of cancellation: 20200310 Granted publication date: 20100512 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: SICHUAN TIANWEI ELECTRONIC Co.,Ltd. Registration number: 2016510000044 |
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Address after: 610000, Sichuan, Chengdu Province three East Ring Road two Longtan Urban Industrial Development Zone, small and medium-sized enterprises Pioneer Park No. 5 Patentee after: Sichuan tianmicroelectronics Co.,Ltd. Address before: 610000, Sichuan, Chengdu Province three East Ring Road two Longtan Urban Industrial Development Zone, small and medium-sized enterprises Pioneer Park No. 5 Patentee before: SICHUAN TIANWEI ELECTRONIC Co.,Ltd. |
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