CN102347184A - Technology for sealing ceramic metal halogen lamp by lasers - Google Patents
Technology for sealing ceramic metal halogen lamp by lasers Download PDFInfo
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- CN102347184A CN102347184A CN2010102439354A CN201010243935A CN102347184A CN 102347184 A CN102347184 A CN 102347184A CN 2010102439354 A CN2010102439354 A CN 2010102439354A CN 201010243935 A CN201010243935 A CN 201010243935A CN 102347184 A CN102347184 A CN 102347184A
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- sealing
- ceramic
- halogen lamp
- laser
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Abstract
The invention discloses a technology for sealing a ceramic metal halogen lamp by lasers, which comprises the following steps: (1) putting a ceramic blister of which one end is sealed on a mould; (2) injecting mercury and other metal halides into the ceramic blister; (3) putting a glass solder ring on the top part of the ceramic blister; (4) rising the mould into a transparent glass cavity and sealing the transparent glass cavity; (5) vacuumizing the interior of the cavity, and then filling buffer gas into the cavity; and (6) carrying out sealing by heating the glass solder ring by using the lasers. Compared with the prior art, the technology for sealing the ceramic metal halogen lamp by the lasers has the advantages that the sealing temperature is centralized, thus, the high-temperature volatilization of the metal halides cannot happen; the sealing temperature is centralized on the solder ring, thus, a metal to be sealed is not easy to oxidize; the regulation is convenient; the sealing temperature is easy to control; the sealing structure is simple; the installation and the maintenance are easy; the sealing temperature is high in stability; the efficiency is high and the like.
Description
Technical field
The present invention relates to the sealing technology of ceramic gold-halogen lamp, relate in particular to a kind of ceramic gold-halogen lamp laser sealing technology.
Background technology
Ceramic metal helide lamp is a kind of metal halide lamp that utilizes light transparent ceramic as electric arc tube.In recent years, it is familiar with by increasing people with high efficiency, high-color rendering and long-life good characteristic, and to its demand also in continuous growth.The sealing technology of ceramic metal helide lamp is one of the key technology that must capture, comprises the design and the manufacturing of sealing structure design, seal, sealing materials preparation and sealing apparatus.
The sealing-in of ceramic metal helide lamp is meant that mainly an electrode lead-out part spare (metal or ceramet) and translucent alumina ceramics cell-shell firmly and reliably seal, and can bear ceramic metal helide lamp and light and extinguish thermal stress and the halid corrosion of high-temperature metal that is produced.The lead-in wire of cylindrical electric arc tube is made up of two parts, near discharge portion be molybdenum lead-in wire, away from discharge portion is the niobium lead-in wire.Whole supply lead is made up of core bar, niobium lead-in wire, molybdenum lead-in wire and the seal glass (glass solder) of a lengthening.Glass solder is sealed whole niobiums and part molybdenum, can prevent the corrosion of high temperature fluent metal halide to the niobium lead-in wire, can also carry out effective seal to the tubule slit partly of lead-in wire.Space between duration of work core bar and the molybdenum lead-in wire is filled by the metal halide of liquid state.
As shown in Figure 1; It is for the sealing-in mode of prior art ceramic gold-halogen lamp: the ceramic cell-shell 101 that an end has been sealed is placed on the copper-made mould; And mercury 107 and metal halide 106 charged in the ceramic cell-shell 101; Glass solder 205 ring is placed on the top of ceramic cell-shell 101, makes copper-made mould rise in the stainless steel heating cavity 100 and seals.After completion vacuumizes, fills buffer gas (argon) in cavity 100, add hot solder ring 205 and make its fusion, realize sealing-in.The mode of heating has power frequency, high frequency etc.Calandria 103 has graphite, molybdenum or tungsten.There is following drawback in this kind sealing-in mode: 1, the fusing point of glass solder is about 1400 ℃, and the thermal diffusion of this kind sealing-in mode is serious, causes metal halide volatilization in a large number in the sealing-in process easily; 2, sealing-in heating cavity structure is complicated, and insulation construction is complicated; 3, the Metal halogen lamp large tracts of land is born higher sealing temperature, causes by the oxidation of sealing-in metal transfer, and wettability descends.Temperature is crossed to hang down and is difficult to then realize that scolder to by the abundant infiltration of closure, can not obtain firm sealing-in; 4, sealing temperature poor stability.
Summary of the invention
Technical problem to be solved by this invention has provided a kind of ceramic gold-halogen lamp laser sealing technology, can overcome the shortcoming that common sealing-in exists.
In order to solve above technical problem, the invention provides a kind of ceramic gold-halogen lamp laser sealing technology, comprise step: (1) is placed on the ceramic cell-shell that an end has sealed on the mould; (2) mercury and other metal halides are injected ceramic cell-shell; (3) the glass solder ring is placed on the top of ceramic cell-shell; (4) mould is risen in the clear glass cavity and seal; (5) after being vacuumized, inside cavity charges into buffer gas; (6): use LASER HEATING glass solder ring to carry out sealing-in.
In addition, said laser sends from least two laser welding systems simultaneously; Said cavity is the clear glass cavity; Said buffer gas is an argon gas; Said mould is a copper-made mould.
The present invention through introducing laser system, can better meet the sealing-in requirement with the ceramic gold-halogen lamp laser sealing technology that adopts.LASER HEATING is compared with common heater, and advantage such as it has, and size is little, precision is high, low in energy consumption, quick heating is welded in electrode assemblie on the earthenware with laser welding method, has avoided the influence of high temperature.
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Description of drawings
Fig. 1 is a prior art ceramic gold-halogen lamp sealing-in mode sketch map;
Fig. 2 is the ceramic gold-halogen lamp laser sealing-in mode sketch map of one embodiment of the invention.
The part symbol description:
100 stainless steel heating cavities, 200 clear glass cavitys
101 201 ceramic cell-shells
102 202 electrodes
103 calandrias, 203 laser
104 204 niobiums lead-in wire
105 glass solders
106 206 metal halides
107 207 mercury
Embodiment
As shown in Figure 2, it is the ceramic gold-halogen lamp laser sealing-in mode sketch map of one embodiment of the invention.On the basis of existing technology, in the ceramic gold-halogen lamp sealing-in, adopted laser system.
Concrete steps: the ceramic cell-shell 201 that an end has been sealed is placed on the mould (preferably copper molding jig here; It has better thermal conductivity); Mercury 207 and other metal halides 206 are injected ceramic cell-shell 201; Glass solder 205 rings are placed on the top of ceramic cell-shell 201; Rise to mould in the clear glass cavity 200 and seal; Vacuumize accomplishing in the clear glass cavity 200; After filling buffer gas (like argon gas); Open laser 203; Regulate laser frequency, obtain best sealing temperature, laser sees through glass chamber 200; Add hot solder ring 205; This moment, the focus of laser only accumulated on the scolder, made its fusion rapidly, realized sealing-in.Laser sends from laser welding system, and laser welding system has two or more a plurality of.
With respect to prior art, the ceramic gold-halogen lamp laser sealing technology has plurality of advantages, comprises that welding temperature is concentrated, can not cause the vaporization at high temperature of metal halide; Sealing temperature concentrates on the scolder ring, is difficult for causing by the sealing-in burning; Easy to adjust, welding temperature is controlled easily; Sealing structure is simple, and is easy to adjust, is prone to installation and maintenance; The welding temperature good stability, efficient is high.
Above-described is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of claim of the present invention change and modification, all should be technology category of the present invention.
Claims (4)
1. ceramic gold-halogen lamp laser sealing technology may further comprise the steps:
(1) the ceramic cell-shell that an end has been sealed is placed on the mould;
(2) mercury and other metal halides are injected ceramic cell-shell;
(3) the glass solder ring is placed on the top of ceramic cell-shell;
(4) mould is risen in the clear glass cavity and seal;
(5) after being vacuumized, inside cavity charges into buffer gas;
It is characterized in that, also comprise step (6): use LASER HEATING glass solder ring to carry out sealing-in.
2. ceramic gold-halogen lamp laser sealing technology as claimed in claim 1 is characterized in that said laser sends simultaneously from least two laser welding systems.
3. ceramic gold-halogen lamp laser sealing technology as claimed in claim 1 is characterized in that, said buffer gas is an argon gas.
4. ceramic gold-halogen lamp laser sealing technology as claimed in claim 1 is characterized in that, said mould is a copper-made mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102439354A CN102347184A (en) | 2010-08-03 | 2010-08-03 | Technology for sealing ceramic metal halogen lamp by lasers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102439354A CN102347184A (en) | 2010-08-03 | 2010-08-03 | Technology for sealing ceramic metal halogen lamp by lasers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102347184A true CN102347184A (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102439354A Pending CN102347184A (en) | 2010-08-03 | 2010-08-03 | Technology for sealing ceramic metal halogen lamp by lasers |
Country Status (1)
| Country | Link |
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| CN (1) | CN102347184A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000340118A (en) * | 1999-05-26 | 2000-12-08 | Matsushita Electronics Industry Corp | Sealing device and sealing method for arc tube |
| CN101436508A (en) * | 2008-12-25 | 2009-05-20 | 上海亚明灯泡厂有限公司 | Electrode structure of ceramic metallic halogen lamp and ceramic metallic halogen lamp with the same |
| CN101459030A (en) * | 2008-12-17 | 2009-06-17 | 海宁新光阳光电有限公司 | Ceramic method halide lamp, electrode and electric arc tube thereof, and manufacturing method for the electric arc tube |
-
2010
- 2010-08-03 CN CN2010102439354A patent/CN102347184A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000340118A (en) * | 1999-05-26 | 2000-12-08 | Matsushita Electronics Industry Corp | Sealing device and sealing method for arc tube |
| CN101459030A (en) * | 2008-12-17 | 2009-06-17 | 海宁新光阳光电有限公司 | Ceramic method halide lamp, electrode and electric arc tube thereof, and manufacturing method for the electric arc tube |
| CN101436508A (en) * | 2008-12-25 | 2009-05-20 | 上海亚明灯泡厂有限公司 | Electrode structure of ceramic metallic halogen lamp and ceramic metallic halogen lamp with the same |
Non-Patent Citations (1)
| Title |
|---|
| 李广安等: "陶瓷金卤灯电弧管封排工艺及设备的研究", 《中国照明电器》 * |
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Application publication date: 20120208 |