CN102603170A - Method for prolonging service life of ultrahigh-pressure spherical xenon short-arc lamp - Google Patents
Method for prolonging service life of ultrahigh-pressure spherical xenon short-arc lamp Download PDFInfo
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- CN102603170A CN102603170A CN2011100230442A CN201110023044A CN102603170A CN 102603170 A CN102603170 A CN 102603170A CN 2011100230442 A CN2011100230442 A CN 2011100230442A CN 201110023044 A CN201110023044 A CN 201110023044A CN 102603170 A CN102603170 A CN 102603170A
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- glass bulb
- xenon lamp
- xenon
- stress
- temperature
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- 229910052724 xenon Inorganic materials 0.000 title claims abstract description 98
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000011521 glass Substances 0.000 claims abstract description 144
- 238000000137 annealing Methods 0.000 claims abstract description 59
- 238000001816 cooling Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 20
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000011257 shell material Substances 0.000 abstract 10
- 238000010586 diagram Methods 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000007537 lampworking Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a method for prolonging service life of an ultrahigh-pressure spherical xenon short-arc lamp. The method comprises the following steps: controlling the heated degree of inner and outer surfaces of a xenon lamp glass shell during an annealing process so that the temperature of the outer surface of the glass shell is higher than the temperature of the inner surface; and air cooling the xenon lamp glass shell after the temperature of the glass shell is lower than an annealing point of a glass shell material. The stress states of inner and outer surfaces of the glass shell are controlled by changing an annealing technology, so that the residual stress of the inner surface of the glass shell is pressure stress and the residual stress of the outer surface of the glass shell is tensile stress. The initial residual stress of the inner surface of the glass shell is pressure stress and can counteract the tensile stress formed during the working process of the xenon lamp, so that the time needed by the inner surface of the xenon lamp glass shell to reach ultimate tensile strength and generate cracks and even explode is prolonged and the purpose of prolonging the service life of the xenon lamp is achieved.
Description
Technical field
The invention belongs to the glass bulb production technical field, relate in particular to the spherical xenon short-act lamp method of life of a kind of prolongation ultra-high voltage.
Background technology
The spherical xenon short-act lamp of ultra-high voltage generally is filled with high-pressure xenon, and the pressure that gets in the working order back light can reach tens normal atmosphere, so the intensity of xenon lamp glass bulb is had very high requirement.When glass bulb was worked at xenon lamp, partly there was bigger thermograde in arc light district glass bulb, and with the prolongation of xenon lamp working hour, the glass bulb internal residual stress can form tensile stress and constantly increase in time.And then the bigger residual tension of xenon lamp when work internal surface and by the mechanical pressure stack that ultra-high voltage xenon in the lamp forms if surpass the US of xenon lamp envelope material, will at first crack at the glass bulb internal surface, cause xenon lamp to explode gradually.
At present, the glass bulb of annealed processing back (artificial annealing or lehre annealing), unrelieved stress shows as the glass bulb internal surface and outside surface stress is very little even be zero, and perhaps the glass bulb outside surface is that stress glass bulb internal surface is a tensile stress.In the case, because glass bulb internal surface unrelieved stress is zero or tensile stress state, with the prolongation of lamp working hour, glass bulb internal surface tensile stress increases rapidly, thereby causes the blast of lamp.
Summary of the invention
To the deficiency of prior art, the technical problem that the present invention will solve is, provides a kind of prolongation ultra-high voltage spherical xenon short-act lamp method of life, and through changing annealing process, the stressed condition of control glass bulb surfaces externally and internally has reached the purpose that prolongs the xenon lamp life-span.
In order to solve the problems of the technologies described above; The embodiment of the invention provides a kind of prolongation ultra-high voltage spherical xenon short-act lamp method of life; Said method is included in control xenon lamp glass bulb surfaces externally and internally heating degree in the annealing process; Make the glass bulb hull-skin temperature be higher than internal surface temperature, after the glass bulb temperature is lower than the envelope material annealing point, the xenon lamp glass bulb is carried out air cooling.
Preferably, said method comprises:
With xenon lamp glass bulb even heating to more than the envelope material annealing point;
During cooling, turn the flame even heating down, keep the glass bulb hull-skin temperature to be higher than internal surface temperature;
When the glass bulb hull-skin temperature is lower than the envelope material annealing point, the xenon lamp glass bulb is carried out air cooling.
Preferably, said method comprises:
Xenon lamp glass bulb outside surface is quickly heated up to more than the envelope material annealing point;
In the temperature-fall period, when the glass bulb hull-skin temperature is higher than the envelope material annealing point, and the glass bulb internal surface temperature carries out air cooling to the xenon lamp glass bulb when being lower than the envelope material annealing point.
Preferably, to being higher than 10 ℃ of envelope material annealing points more than-50 ℃, said flame cooling rate is 5 ℃-50 ℃/minute with xenon lamp glass bulb even heating, and the glass bulb outside temperature is lower than 0 ℃ of envelope material annealing point below-20 ℃ the time, and the xenon lamp glass bulb is carried out air cooling.
Preferably, xenon lamp glass bulb outside surface quickly heated up to be higher than 10 ℃ of envelope material annealing points more than-50 ℃, its heat-up rate is 30 ℃-55 ℃/minute, and the glass bulb internal surface temperature is lower than 0 ℃ of envelope material annealing point below-20 ℃ the time, and the xenon lamp glass bulb is carried out air cooling.
Embodiment of the present invention embodiment has following beneficial effect:
Through changing annealing process, control the stressed condition of glass bulb surfaces externally and internally, the unrelieved stress that makes the glass bulb internal surface is a stress, the unrelieved stress of glass bulb outside surface is a tensile stress state.Because the initial residual stress of glass bulb internal surface is a stress; The tensile stress that forms when xenon lamp is worked has negative function; Thereby prolonged that xenon lamp glass bulb internal surface reaches its breakdown point and time of cracking even exploding has reached the purpose that prolongs the xenon lamp life-span.
Description of drawings
Fig. 1 is a kind of product stressed condition synoptic diagram that prolongs the spherical xenon short-act lamp method of life of ultra-high voltage of the present invention;
Fig. 2 is a kind of a kind of embodiment figure that prolongs the spherical xenon short-act lamp method of life of ultra-high voltage of the present invention;
Fig. 3 is a kind of another embodiment figure that prolongs the spherical xenon short-act lamp method of life of ultra-high voltage of the present invention;
Fig. 4 is the product residual stress view of art methods in the spherical xenon short-act lamp glass bulb annealing of ultra-high voltage;
Fig. 5 is the stressed condition synoptic diagram after product work for some time of art methods in the spherical xenon short-act lamp glass bulb annealing of ultra-high voltage;
Fig. 6 is the product residual stress view of the inventive method in the spherical xenon short-act lamp glass bulb annealing of ultra-high voltage;
Fig. 7 is the stressed condition synoptic diagram after product work for some time of the inventive method in the spherical xenon short-act lamp glass bulb annealing of ultra-high voltage.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is done to describe in detail further below.
With reference to a kind of product stressed condition synoptic diagram that prolongs the spherical xenon short-act lamp method of life of ultra-high voltage of Fig. 1 the present invention; The stress value or the glass bulb outside surface that reduce the glass bulb surfaces externally and internally with prior art to the full extent are stress; The glass bulb internal surface is that tensile stress is different; The unrelieved stress of using the xenon lamp glass bulb outside surface of the inventive method is a tensile stress, and the unrelieved stress of glass bulb internal surface is a stress.
Generally speaking, the xenon lamp envelope material is a silica glass, and silica glass will produce stress under non-homogeneous temperature.Under any specified temp, silica glass all has its corresponding atomic structure, and the atom space structure of composition silica glass all is " only ".The atom gap changes with variation of temperature, generally is referred to as the thermal expansion phenomenon.When the silica glass nonuniform heating, will cause differential expansion.The reason that produces stress generally is outwards to expand in the zone of heat, but is limited by cold on every side zone, and this stress is string stress, generally can not cause the damage of product.If the enough high energy of temperature is softening by silica glass, stress will be eased.
With reference to a kind of a kind of embodiment that prolongs the spherical xenon short-act lamp method of life of ultra-high voltage of Fig. 2 the present invention, comprise the following steps:
Step s200, with xenon lamp glass bulb even heating to more than the envelope material annealing point;
Step s201 during cooling, turns the flame even heating down, keeps the glass bulb hull-skin temperature to be higher than internal surface temperature;
Step s202 when the glass bulb hull-skin temperature is lower than the envelope material annealing point, carries out air cooling to the xenon lamp glass bulb.
Above-mentioned embodiment is in the annealing process of xenon lamp glass bulb; Earlier with the glass bulb even heating to more than the annealing point; Alleviate its virgin state of stress, continue to turn down the cooling of flame even heating, and keep the glass bulb hull-skin temperature to be higher than the glass bulb internal surface temperature always; When guaranteeing fully to eliminate in the glass bulb virgin state of stress; When glass bulb outer surface layer expanded by heating, the glass bulb interior surface layers that the relative expansion degree is lower in temperature-rise period hinders the expanded by heating of outer surface layer, thereby forms tensile stress at the glass bulb internal surface.And temperature has been lower than the glass bulb internal surface of annealing point in process of cooling, because of the extruding that continues to receive the glass bulb outside surface that shrinks because of cooling produces remaining compressive stress state.Because the glass bulb hull-skin temperature is higher than the glass bulb internal surface temperature; The thermal expansion degree of envelope outer layer is greater than the thermal expansion degree of glass bulb interior surface layers; Therefore in process air cooler, having formed glass bulb outside surface unrelieved stress is tensile stress, and glass bulb internal surface unrelieved stress is a stress.
Wherein, xenon lamp glass bulb even heating to being higher than 10 ℃ of envelope material annealing points more than-50 ℃, can guaranteed in 3 minutes, to eliminate 95% of whole stress under this temperature; In order fully to eliminate virgin state of stress in the glass bulb, take to turn down the flame even heating, said flame cooling rate is 5 ℃-50 ℃/minute; The glass bulb outside temperature is lower than 0 ℃ of envelope material annealing point below-20 ℃ the time, has both eliminated the original residual stress of xenon lamp glass bulb, has reached surfaces externally and internally stressed condition of the presently claimed invention again, and the xenon lamp glass bulb is carried out air cooling.
This embodiment annealing time is longer, when guaranteeing glass bulb surfaces externally and internally stressed condition, has guaranteed that envelope surfaces stress is even, avoids stress to concentrate the glass bulb deformation that causes, and helps further to improve the quality of production of xenon lamp glass bulb.
With reference to a kind of another embodiment that prolongs the spherical xenon short-act lamp method of life of ultra-high voltage of Fig. 3 the present invention, comprise the following steps:
Step s300 quickly heats up to xenon lamp glass bulb outside surface more than the envelope material annealing point;
Step s301, in the temperature-fall period, when the glass bulb hull-skin temperature is higher than the envelope material annealing point, and the glass bulb internal surface temperature carries out air cooling to the xenon lamp glass bulb when being lower than the envelope material annealing point.
Above-mentioned embodiment is in the annealing process of xenon lamp glass bulb; Earlier the glass bulb outside surface is quickly heated up to more than the annealing point, and the glass bulb internal surface temperature is lower than the envelope material annealing temperature, has guaranteed glass bulb internal surface expanded by heating degree slow with respect to outside surface expanded by heating degree; The glass bulb interior surface layers that the relative expansion degree is lower in annealing process receives the extruding of outer surface layer expanded by heating; Thereby form stress at the glass bulb internal surface, when the glass bulb hull-skin temperature is higher than the envelope material annealing point, and the glass bulb internal surface temperature is when being lower than the envelope material annealing point; The xenon lamp glass bulb is carried out air cooling; Because the glass bulb hull-skin temperature is higher than the glass bulb internal surface temperature, the thermal expansion degree of envelope outer layer is greater than the thermal expansion degree of glass bulb interior surface layers, therefore in process air cooler; Having formed glass bulb outside surface unrelieved stress is tensile stress, and glass bulb internal surface unrelieved stress is a stress.
Wherein, xenon lamp glass bulb outside surface quickly heated up to be higher than 10 ℃ of envelope material annealing points more than-50 ℃, under this temperature, can guarantee in 3 minutes, to eliminate 95% of whole stress; And because the stress that produces in the temperature rise period can be eliminated later on reaching annealing point, so can be rapidly heated, its heat-up rate is 30 ℃-55 ℃/minute; The glass bulb internal surface temperature is lower than 0 ℃ of envelope material annealing point below-20 ℃ the time, has both eliminated the original residual stress of xenon lamp glass bulb, has reached surfaces externally and internally stressed condition of the presently claimed invention again, and the xenon lamp glass bulb is carried out air cooling.
This embodiment when guaranteeing glass bulb surfaces externally and internally stressed condition, has shortened process period owing to take the mode of being rapidly heated, and has improved production efficiency, has reduced production cost.
The principal element that influences the xenon lamp life-span is its fatigue strength, and the upper layer unrelieved stress is very big to INFLUENCE ON FATIGUE STRENGTH, and the tired line that fatigue damage is produced by tensile stress often causes, and is to begin from the surface.When xenon lamp was worked, because partly there is big thermograde in arc light district glass bulb, with the prolongation of xenon lamp working hour, the glass bulb internal residual stress can form tensile stress state and constantly increase in time, will cause the resistance to fatigue of xenon lamp glass bulb significantly to descend.And embodiment of the present invention; Because the initial residual stress of glass bulb internal surface is a stress; The tensile stress that forms when xenon lamp is worked has negative function; Thereby improved the fatigue resistance of xenon lamp glass bulb, prolonged the time that xenon lamp glass bulb internal surface stress reaches its breakdown point and then cracks even explode, reached the purpose that prolongs the xenon lamp life-span.
The product residual stress view of the inventive method in annealing with the spherical xenon short-act lamp glass bulb of Fig. 6 ultra-high voltage with reference to the product residual stress view of art methods in the spherical xenon short-act lamp glass bulb annealing of Fig. 4 ultra-high voltage; Can see that the stressed condition of the stressed condition of the xenon lamp glass bulb surfaces externally and internally of application the inventive method and the xenon lamp glass bulb surfaces externally and internally of art methods is opposite fully.
Stressed condition synoptic diagram in annealing with the spherical xenon short-act lamp glass bulb of Fig. 5 ultra-high voltage with reference to the product residual stress view of art methods in the spherical xenon short-act lamp glass bulb annealing of Fig. 4 ultra-high voltage after product work for some time of art methods; After product work for some time of art methods; The glass bulb internal surface is in the highest one side of thermograde; Its tensile stress significantly increases, and is nearer apart from xenon lamp glass bulb safe range of stress, along with the prolongation of xenon lamp working hour; Tensile stress increases, and the xenon lamp glass bulb cracks even explodes also more and more nearer;
With reference to the stressed condition synoptic diagram after product work for some time of the inventive method in stressed condition synoptic diagram after product work for some time of art methods in the spherical xenon short-act lamp glass bulb annealing of Fig. 5 ultra-high voltage and the spherical xenon short-act lamp glass bulb annealing of Fig. 7 ultra-high voltage; After product work for some time of the inventive method; Because xenon lamp glass bulb internal surface is in the higher one side of thermograde; Its tensile stress increases rapidly; And the tensile stress that glass bulb internal surface initial residual stress produces when being the work of stress and xenon lamp is cancelled out each other; Delay the growth of glass bulb internal surface tensile stress, prolonged the time that xenon lamp glass bulb internal surface stress reaches breakdown point, prolonged the xenon lamp life-span.
The above is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also are regarded as protection scope of the present invention.
Claims (5)
1. one kind prolongs the spherical xenon short-act lamp method of life of ultra-high voltage; It is characterized in that: said method is included in control xenon lamp glass bulb surfaces externally and internally heating degree in the annealing process; Make the glass bulb hull-skin temperature be higher than internal surface temperature; After the glass bulb temperature is lower than the envelope material annealing point, the xenon lamp glass bulb is carried out air cooling.
2. the spherical xenon short-act lamp method of life of prolongation ultra-high voltage according to claim 1 is characterized in that, may further comprise the steps:
With xenon lamp glass bulb even heating to more than the envelope material annealing point;
During cooling, turn the flame even heating down, keep the glass bulb hull-skin temperature to be higher than internal surface temperature;
When the glass bulb hull-skin temperature is lower than the envelope material annealing point, the xenon lamp glass bulb is carried out air cooling.
3. the spherical xenon short-act lamp method of life of prolongation ultra-high voltage according to claim 1 is characterized in that, may further comprise the steps:
Xenon lamp glass bulb outside surface is quickly heated up to more than the envelope material annealing point;
In the temperature-fall period, when the glass bulb hull-skin temperature is higher than the envelope material annealing point, and the glass bulb internal surface temperature carries out air cooling to the xenon lamp glass bulb when being lower than the envelope material annealing point.
4. the spherical xenon short-act lamp method of life of prolongation ultra-high voltage according to claim 2; It is characterized in that: with xenon lamp glass bulb even heating to being higher than 10 ℃ of envelope material annealing points more than-50 ℃; Said flame cooling rate is 5 ℃-50 ℃/minute; The glass bulb outside temperature is lower than 0 ℃ of envelope material annealing point below-20 ℃ the time, and the xenon lamp glass bulb is carried out air cooling.
5. the spherical xenon short-act lamp method of life of prolongation ultra-high voltage according to claim 3; It is characterized in that: xenon lamp glass bulb outside surface is quickly heated up to be higher than 10 ℃ of envelope material annealing points more than-50 ℃; Its heat-up rate is 30 ℃-55 ℃/minute; The glass bulb internal surface temperature is lower than 0 ℃ of envelope material annealing point below-20 ℃ the time, and the xenon lamp glass bulb is carried out air cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110023044.2A CN102603170B (en) | 2011-01-20 | 2011-01-20 | A kind of method extending service life of ultrahigh-pressure spherical xenon short-arc lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110023044.2A CN102603170B (en) | 2011-01-20 | 2011-01-20 | A kind of method extending service life of ultrahigh-pressure spherical xenon short-arc lamp |
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| Publication Number | Publication Date |
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| CN102603170A true CN102603170A (en) | 2012-07-25 |
| CN102603170B CN102603170B (en) | 2015-12-16 |
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| CN201110023044.2A Expired - Fee Related CN102603170B (en) | 2011-01-20 | 2011-01-20 | A kind of method extending service life of ultrahigh-pressure spherical xenon short-arc lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533732A (en) * | 2013-10-14 | 2014-01-22 | 中国科学技术大学 | Device and method for generating high-throughput plane light source |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074555A (en) * | 1992-11-09 | 1993-07-21 | 广州灯泡厂 | High alumina glass tubular halogen tungsten lamp and manufacture method thereof |
| JP2003146677A (en) * | 2001-11-13 | 2003-05-21 | Nippon Electric Glass Co Ltd | Glass tube for illumination |
| CN101580340A (en) * | 2009-06-22 | 2009-11-18 | 东莞市兆天照明科技有限公司 | Continuous type precise control annealing technology of glass lamp |
-
2011
- 2011-01-20 CN CN201110023044.2A patent/CN102603170B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074555A (en) * | 1992-11-09 | 1993-07-21 | 广州灯泡厂 | High alumina glass tubular halogen tungsten lamp and manufacture method thereof |
| JP2003146677A (en) * | 2001-11-13 | 2003-05-21 | Nippon Electric Glass Co Ltd | Glass tube for illumination |
| CN101580340A (en) * | 2009-06-22 | 2009-11-18 | 东莞市兆天照明科技有限公司 | Continuous type precise control annealing technology of glass lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103533732A (en) * | 2013-10-14 | 2014-01-22 | 中国科学技术大学 | Device and method for generating high-throughput plane light source |
| CN103533732B (en) * | 2013-10-14 | 2016-06-22 | 中国科学技术大学 | The device and method that a kind of high flux planar light source produces |
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| Publication number | Publication date |
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| CN102603170B (en) | 2015-12-16 |
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Granted publication date: 20151216 Termination date: 20200120 |