[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN207993802U - A kind of xenon flash lamp electrode connection device - Google Patents

A kind of xenon flash lamp electrode connection device Download PDF

Info

Publication number
CN207993802U
CN207993802U CN201820439912.2U CN201820439912U CN207993802U CN 207993802 U CN207993802 U CN 207993802U CN 201820439912 U CN201820439912 U CN 201820439912U CN 207993802 U CN207993802 U CN 207993802U
Authority
CN
China
Prior art keywords
electrode
cap
adapter
hole
connection device
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.)
Expired - Fee Related
Application number
CN201820439912.2U
Other languages
Chinese (zh)
Inventor
马永波
郝万立
宋虎
彭述明
龙兴贵
梁建华
张伟光
周晓松
颜登云
曹清薇
王宏波
符雪梅
张慧君
姚冰
张涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics
Original Assignee
Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics filed Critical Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics
Priority to CN201820439912.2U priority Critical patent/CN207993802U/en
Application granted granted Critical
Publication of CN207993802U publication Critical patent/CN207993802U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

The utility model discloses a kind of xenon flash lamp electrode connection devices.The electrode connection device is mainly made of components such as electrode, electrode cap, adapter, equal pressure cap and cables.It is orderly connected between each component of electrode connection device by being interference fitted the different modes such as connection, threaded connection, screw fastening, crimping and soldering.The xenon flash lamp of the utility model ensure that the cleaning of electrode and electrode cap with electrode connection device in xenon lamp production process, avoid being contaminated inside xenon lamp;The assembly technology simple and stable of each component, structural strength are high;The connection area and cross-sectional area of each component are big, can bear very high current, and service life and functional reliability significantly improve.

Description

A kind of xenon flash lamp electrode connection device
Technical field
The utility model belongs to electric light source technology field, and in particular to a kind of xenon flash lamp electrode connection device.
Background technology
High power xenon flashlamp has a wide range of applications as the pump light source of large-scale laser.High power xenon flashlamp is just The peak point current often to work reaches about 10kA~25kA, peak point current when accelerated aging operating condition be even as high as 40kA with On.Therefore, the electrode connection device of high power xenon flashlamp will have very strong resistance to high current ability and higher structural strength.
High power xenon flashlamp electrode connection device prepared by quartz glass-to-tungsten inner seal technology is simple, is connected by electrode, conducting wire Fitting and cable are constituted, and have through-hole, both ends to be socketed electrode stem and cable wire core respectively among wire connector, and past logical Solder is perfused in hole to be welded to together.This structure is not suitable for high-temperature metal sealing-in high power xenon flashlamp.
Chinese patent literature library discloses the patent application application No. is CN201410307078.8, this patent application is High-temperature metal sealing-in high power xenon flashlamp and preparation method thereof, disclosed electrode connection device is by electrode, metal thin-wall set The compositions such as cylinder, transition rings, contact conductor cap, connecting sleeve of wire and cable.Wherein, electrode connects and fills with contact conductor cap sleeve Nickel Matrix Solder carries out soldering connection;Metal book wall sleeve and transition rings, which are put into vacuum brazing furnace, carries out soldering connection;It is welded with The contact conductor cap of electrode uses laser welded seal with transition rings;With sleeve soldering mode by connecting sleeve of wire by cable Core be connected with contact conductor cap.The major defect of this electrode connection device structure is that electrode is used with contact conductor cap Soldering connection can cause electrode to be vulnerable to the pollution of solder, while electrode connection device tip is more, leads to electrode connection device Electric field strength when xenon lamp works will appear the areas Ji Gao, can reduce the reliability of xenon-lamp high-pressure insulation.
Invention content
The technical problem to be solved by the utility model is to provide a kind of xenon flash lamp electrode connection devices.
The xenon flash lamp electrode connection device of the utility model, its main feature is that, the electrode connection device includes electricity Pole, electrode cap, adapter, equal pressure cap and cable;Electrode, electrode cap, adapter and the cable is fixedly connected sequentially, The front end of the equal pressure cap is coated on the tail end of quartz ampoule, and the rear end of equal pressure cap is coated on the head end of cable, equal pressure cap Stage casing jacketed electrode cap and adapter;
The electrode and electrode cap front end connects using interference tolerance or engagement thread, the end face of electrode cap tail end with turn Connector is fastenedly connected by uniformly distributed screw, and the lateral surface of electrode cap tail end is threadedly connect with equal pressure cap;Described The front end surface of electrode cap has annular groove, is inserted into annular groove after trailing exterior surface one layer of solder of package of quartz ampoule, stone The tail end of English pipe is connected by the front end of brazing mode and electrode cap;The adapter is with cable by being brazed again after crimping Mode connect;
There are the gas port being mutually communicated, gas port to extend out to electrode along horizontal center line axis in the electrode and electrode cap The tail end of cap is simultaneously communicated with the tail end exhaust pipe of electrode cap.
The electrode is made of the electrode tip and electrode stem being fixedly connected, and electrode tip uses interference tolerance or brazing mode It is connect with the front end of electrode stem, when using brazing mode, electrode reprocesses forming after brazing;Along horizontal middle spindle in electrode stem Line has horizontal gas port, and venthole is vertically provided at the middle part of electrode stem, and venthole is communicated with gas port, forms gas Body circulation passage;The tail end of electrode stem has external screw thread area or interference fit area and the equipped connection of electrode cap;The electrode tip material Material be cerium tungsten, yttrium tungsten or multiple elements design tungsten alloy in one kind, electrode bar material be can cut down, one kind in molybdenum or niobium.
The electrode cap is by the attachment cap and exhaust pipe group that are fixedly connected at attachment cap passes through brazing mode and exhaust pipe Connection;There is gas port at attachment cap center, is communicated with exhaust pipe;Attachment cap front end surface has annular groove, the outer wall of annular groove For the thin wall cylinder of wall thickness 0.1mm~0.6mm, the trailing exterior surface of quartz ampoule is inserted into after wrapping up one layer of solder in annular groove, weldering Solder fusing realizes being fixedly connected between thin wall cylinder and quartz ampoule when connecing;The front end center of attachment cap has to be fixedly connected with electrode Internal thread or interference fit area;There is convex at the breech face center of attachment cap, and for convex for welding exhaust pipe, convex surrounding has number A uniformly distributed screw hole is used for connecting adapter;Attachment cap tail end circumference has external screw thread for connecting equal pressure cap;The attachment cap Material be can cut down, one kind in oxygen-free copper or titanium alloy, exhaust tube material be oxygen-free copper.
The joint face of the adapter front end and electrode cap is plane, and plane circumferentially has uniformly distributed through-hole, through-hole to be used for Mounting screw;Planar central has blind hole I II, and blind hole I is for accommodating exhaust pipe;The tail end of adapter has blind hole II, blind hole II to use It is vertically provided with through-hole among the core of embedded cable, blind hole II, through-hole is communicated with blind hole;The adapter material Material is oxygen-free copper, electroplate.
The equal pressure cap is the cylindrical drum combination of cylindrical drum or different-diameter, and the outer surface of cylindrical drum polishes smooth, circle The sharp Edge Blend of column casing combination;It is through-hole inside equal pressure cap, has internal thread for connection electrode cap in through-hole;The pressure The material of cap is one kind in brass or stainless steel.
The xenon flash lamp of the utility model is as follows with electrode connection device installation process:
A. electrode is connected to by interference tolerance or engagement thread on electrode cap;
B. one layer of activated solder piece is wrapped up in quartzy tube end, electrode cap is then assembled to quartzy tube end;
C. the quartz ampoule for assembling electrode cap is welded together in vacuum brazing furnace;
D. after being filled with quantitative xenon into quartz ampoule by the exhaust pipe on electrode cap, exhaust pipe is sealed disconnected;
E. one tip cut-off insulating layer of cable is exposed into core and be inserted in adapter blind hole, compressed along through-hole direction, Through hole filling slicken solder welds together core and adapter;
F. the adapter for being connected with cable is fixed on electrode cap using screw;
G. equal pressure cap is passed through into cable, be threadedly secured on electrode cap.
The xenon flash lamp of the utility model ensure that electrode and electrode cap with electrode connection device in xenon lamp production process Cleaning, avoid being contaminated inside xenon lamp;The assembly technology simple and stable of each component, structural strength are high;The connection of each component Area and cross-sectional area are big, can bear very high current, and service life and functional reliability significantly improve.
Description of the drawings
Fig. 1 is the structural schematic diagram of the xenon flash lamp electrode connection device of the utility model;
Fig. 2 is the electrode structure schematic diagram in the xenon flash lamp electrode connection device of the utility model;
Fig. 3 is the electrode cap structural schematic diagram in the xenon flash lamp electrode connection device of the utility model;
Fig. 4 is the adapter structure schematic diagram in the xenon flash lamp electrode connection device of the utility model;
Fig. 5 is the equal pressure cap structural schematic diagram in the xenon flash lamp electrode connection device of the utility model;
Fig. 6 is that the assembling structure of the adapter and cable in the xenon flash lamp electrode connection device of the utility model is shown It is intended to.
In figure, 1. electrode, 2. electrode cap, 3. 7. solder of adapter 4. equal pressure cap, 5. cable, 6. quartz ampoule, 8. spiral shell Follow closely 011. electrode tip, 012. electrode stem, 021. attachment cap, 022. exhaust pipe, 051. core, 052. insulating layer.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, the xenon flash lamp electrode connection device of the utility model includes electrode 1, electrode cap 2, turns Connector 3, equal pressure cap 4 and cable 5;Electrode 1, electrode cap 2, adapter 3 and the cable 5 is successively It is fixedly connected, the front end of the equal pressure cap 4 is coated on the tail end of quartz ampoule 6, and the rear end of equal pressure cap 4 is coated on cable The head end of line 5, the stage casing jacketed electrode cap 2 and adapter 3 of equal pressure cap 4;
The electrode 1 is connected with 2 front end of electrode cap using interference tolerance or engagement thread, 2 tail end of electrode cap End face be fastenedly connected by uniformly distributed screw 8 with adapter 3, the lateral surface of 2 tail end of electrode cap is logical with equal pressure cap 4 Cross engagement thread connection;The front end surface of the electrode cap 2 has annular groove, the trailing exterior surface package of quartz ampoule 6 It is inserted into annular groove after one layer of solder 7, the tail end of quartz ampoule 6 is connect by brazing mode with the front end of electrode cap 2; The adapter 3 is connect with cable 5 by way of being brazed again after crimping;
There are the gas port being mutually communicated, gas port to stretch out in the electrode 1 and electrode cap 2 along horizontal center line axis To electrode cap 2 tail end and communicated with the tail end exhaust pipe 022 of electrode cap 2.
As shown in Fig. 2, the electrode 1 is made of the electrode tip 011 and electrode stem 012 being fixedly connected, electrode First 011 is connect using interference tolerance or brazing mode with the front end of electrode stem 012, and when using brazing mode, electrode 1 exists Forming is reprocessed after soldering;There is horizontal gas port along horizontal center line axis in electrode stem 012, in electrode stem 012 Portion is vertically provided with venthole, and venthole is communicated with gas port, forms air ventilation passage;The tail end of electrode stem 012 There are external screw thread area or interference fit area and the equipped connection of electrode cap 2;011 material of electrode tip be cerium tungsten, yttrium tungsten or One kind in multiple elements design tungsten alloy, 012 material of electrode stem be can cut down, one kind in molybdenum or niobium.
As shown in figure 3, the electrode cap 2 is made of the attachment cap 021 and exhaust pipe 022 being fixedly connected, even Cap 021 is connect to connect with exhaust pipe 022 by brazing mode;There is gas port at 021 center of attachment cap, with exhaust pipe 022 It communicates;It is the thin wall cylinder of wall thickness 0.1mm~0.6mm that 021 front end surface of attachment cap, which has annular groove, the outer wall of annular groove, The trailing exterior surface of quartz ampoule 6 is inserted into after wrapping up one layer of solder 7 in annular groove, when welding the fusing of solder 7 realize thin Being fixedly connected between wall cylinder and quartz ampoule 6;The front end center of attachment cap 021 has the interior spiral shell being fixedly connected with electrode 1 Line or interference fit area;There is convex at the breech face center of attachment cap 021, and convex is for welding exhaust pipe 022, convex surrounding There are several screw holes for connecting adapter 3;021 tail end circumference of attachment cap has external screw thread for connecting equal pressure cap 4;It is described Attachment cap 021 material be can cut down, one kind in oxygen-free copper or titanium alloy, 022 material of exhaust pipe be oxygen-free copper.
As shown in figure 4, the joint face of 3 front end of adapter and electrode cap 2 is plane, plane circumferentially has uniformly distributed Through-hole, through-hole be used for mounting screw;Planar central has blind hole I, and blind hole I is for accommodating exhaust pipe 022;Adapter 3 Tail end has blind hole II, blind hole II to be used to be embedded in the core 051 of cable 5, through-hole is vertically provided among blind hole II, Through-hole is communicated with blind hole;3 material of adapter is oxygen-free copper, electroplate.
As shown in figure 5, the equal pressure cap 4 is the cylindrical drum combination of cylindrical drum or different-diameter, the appearance of cylindrical drum Face polishes smooth, the sharp Edge Blend of cylindrical drum combination;4 inside of equal pressure cap is through-hole, has internal thread for connecting in through-hole Electrode cap 2;The material of the equal pressure cap 4 is one kind in brass or stainless steel.
As shown in fig. 6, the connection method of the adapter 3 and cable 5 is by the core 051 of cable 5 In the blind hole II of embedded adapter 3, blind hole II is flattened along through-hole direction then and is fastened;Solder is injected into blind hole II from through-hole In, realize the integration connection of adapter 3 and core 051.
Embodiment 1
The installation process of the xenon flash lamp electrode connection device of the present embodiment is as follows:
A. electrode is threadedly attached on electrode cap with torque wrench, torque setting value is 17Nm~19Nm;
B., solder is cut into the solder sheet of width about 10mm~15mm, and is wrapped in the trailing exterior surface of quartz ampoule, then The quartz ampoule tail end for wrapping up solder sheet is inserted into the electrode cap annular groove for being equipped with electrode;
C. the quartz ampoule for being equipped with electrode, electrode cap and solder is put into vacuum brazing furnace vertically, not higher than 5 × 10- 3It is heated to 600 DEG C or more in the vacuum environment of Pa, is fully reacted up to melt solder and with quartz glass generation, it will be quartzy Pipe and electrode cap are directly welded into an entirety;
D. after being filled with quantitative xenon into quartz ampoule by the φ 4mm exhaust pipes on electrode cap, exhaust pipe is sealed from root It is disconnected, form the areas Feng Duan that a length is not more than 10mm;
E. the core of cable is embedded in the blind hole II of adapter, blind hole II is flattened along through-hole direction then and is fastened; Solder is injected from through-hole in blind hole II, realizes the integration connection of adapter and core;
F. the front end face of the adapter of mounting cable line is docked with the breech face of quartz ampoule upper electrode cap, 6 spiral shells is used in combination It clenches solid;
G. equal pressure cap is passed through into cable, is tightened on electrode cap by screw thread.
Electrode is made of electrode tip and electrode stem, and electrode head material is multiple elements design tungsten alloy, and electrode bar material is that can cut down; Electrode tip is connect using interference tolerance with electrode stem, and electrode tip outer diameter is φ 15mm;There are gas port, tail end M8 in electrode stem center × 7mm external screw threads.The material of electrode tip can also be cerium tungsten, yttrium tungsten, and the material of electrode stem can also be molybdenum or niobium.
Electrode cap is by attachment cap and exhaust pipe group at connection cap material is that can cut down, and exhaust tube material is oxygen-free copper;Attachment cap It is connect with φ 4mm exhaust pipes by brazing mode;Gas port on attachment cap is communicated with φ 4mm exhaust pipes;Outside attachment cap front end Week is the thin wall cylinder of wall thickness 0.3mm, and front end center is M8 × 7mm internal threads of connection electrode;Among attachment cap back plan Convex has 6 uniformly distributed M3 × 6mm screw holes for connecting adapter for welding φ 4mm exhaust pipes, convex surrounding;After attachment cap End circumference has M24 × 6mm external screw threads for connecting equal pressure cap.The material of attachment cap can also be oxygen-free copper or titanium alloy.
Switching head material is oxygen-free copper, electroplate;The joint face of adapter and electrode cap is plane, has 6 peaces on face The through-hole of cartridge screw, there are one the φ 7.5mm × 16mm blind holes for accommodating exhaust pipe at face center;The adapter other end be φ 6mm × 7mm blind holes, blind hole area is radial to be communicated there are two through-hole with blind hole.
Equal pressure cap is that φ 26mm are combined to the cylindrical drum of φ 22mm arc transitions, and wall thickness 2mm, material is 304 stainless steels; Pressure cap outer surface roughness≤0.8 μm, all sharp Edge Blends;There are M24 × 6mm internal threads for connecting electricity in equal pressure cap through-hole Polar cap.The material of equal pressure cap can also be brass.
The utility model is not limited to above-mentioned specific implementation mode, and person of ordinary skill in the field visualizes from above-mentioned Hair, without performing creative labour, made various transformation are all fallen within the scope of protection of the utility model.

Claims (5)

1. a kind of xenon flash lamp electrode connection device, it is characterised in that:The electrode connection device includes electrode(1), electricity Polar cap(2), adapter(3), equal pressure cap(4)And cable(5);The electrode(1), electrode cap(2), adapter(3)And electricity Cable(5)It is fixedly connected sequentially, the equal pressure cap(4)Front end be coated on quartz ampoule(6)Tail end, equal pressure cap(4)After End is coated on cable(5)Head end, equal pressure cap(4)Stage casing jacketed electrode cap(2)And adapter(3);
The electrode(1)And electrode cap(2)Front end is connected using interference tolerance or engagement thread, electrode cap(2)The end of tail end Face and adapter(3)Pass through uniformly distributed screw(8)It is fastenedly connected, electrode cap(2)The lateral surface of tail end and equal pressure cap(4)Pass through spiral shell Line mode connects;The electrode cap(2)Front end surface have annular groove, quartz ampoule(6)Trailing exterior surface wrap up one layer Solder(7)It is inserted into annular groove afterwards, quartz ampoule(6)Tail end pass through brazing mode and electrode cap(2)Front end connection;It is described Adapter(3)With cable(5)It is connected by way of being brazed again after crimping;
The electrode(1)And electrode cap(2)It is interior to there is the gas port being mutually communicated, gas port to extend out to electricity along horizontal center line axis Polar cap(2)Tail end and and electrode cap(2)Tail end exhaust pipe(022)It communicates.
2. xenon flash lamp electrode connection device according to claim 1, it is characterised in that:The electrode(1)By solid Surely the electrode tip connected(011)And electrode stem(012)Composition, electrode tip(011)Using interference tolerance or brazing mode and electrode Bar(012)Front end connection, when using brazing mode, electrode(1)Reprocessing forming after brazing;Electrode stem(012)It is interior along water Flat central axis has horizontal gas port, in electrode stem(012)Middle part be vertically provided with venthole, venthole and air guide Hole communicates, and forms air ventilation passage;Electrode stem(012)Tail end have external screw thread area or interference fit area and electrode cap(2)Match Load connects.
3. xenon flash lamp electrode connection device according to claim 1, it is characterised in that:The electrode cap(2)By The attachment cap being fixedly connected(021)And exhaust pipe(022)Composition, attachment cap(021)Pass through brazing mode and exhaust pipe(022)Even It connects;Attachment cap(021)There is gas port at center, with exhaust pipe(022)It communicates;Attachment cap(021)Front end surface has annular groove, ring The outer wall of connected in star is the thin wall cylinder of wall thickness 0.1mm~0.6mm, solder when welding(7)Thin wall cylinder and quartz ampoule are realized in fusing(6) Between be fixedly connected;Attachment cap(021)Front end center have and electrode(1)The internal thread being fixedly connected or interference fit area; Attachment cap(021)Breech face center have a convex, convex is for welding exhaust pipe(022), convex surrounding has several uniformly distributed spiral shells Hole is used for connecting adapter(3);Attachment cap(021)Tail end circumference has external screw thread for connecting equal pressure cap(4).
4. xenon flash lamp electrode connection device according to claim 1, it is characterised in that:The adapter(3)Before End and electrode cap(2)Joint face be plane, plane circumferentially has a uniformly distributed through-hole, and through-hole is used for mounting screw;Planar central has Blind hole I, blind hole I is for accommodating exhaust pipe(022);Adapter(3)Tail end have a blind hole II, blind hole II is for being embedded in cable (5)Core(051), through-hole is vertically provided among blind hole II, and through-hole is communicated with blind hole.
5. xenon flash lamp electrode connection device according to claim 1, it is characterised in that:The equal pressure cap(4)For Cylindrical drum or the combination of the cylindrical drum of different-diameter, the outer surface of cylindrical drum polish smooth, the sharp Edge Blend of cylindrical drum combination; Pressure cap(4)Inside is through-hole, has internal thread for connection electrode cap in through-hole(2).
CN201820439912.2U 2018-03-30 2018-03-30 A kind of xenon flash lamp electrode connection device Expired - Fee Related CN207993802U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820439912.2U CN207993802U (en) 2018-03-30 2018-03-30 A kind of xenon flash lamp electrode connection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820439912.2U CN207993802U (en) 2018-03-30 2018-03-30 A kind of xenon flash lamp electrode connection device

Publications (1)

Publication Number Publication Date
CN207993802U true CN207993802U (en) 2018-10-19

Family

ID=63829525

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820439912.2U Expired - Fee Related CN207993802U (en) 2018-03-30 2018-03-30 A kind of xenon flash lamp electrode connection device

Country Status (1)

Country Link
CN (1) CN207993802U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565204A (en) * 2018-03-30 2018-09-21 中国工程物理研究院核物理与化学研究所 A kind of xenon flash lamp electrode connection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565204A (en) * 2018-03-30 2018-09-21 中国工程物理研究院核物理与化学研究所 A kind of xenon flash lamp electrode connection device
CN108565204B (en) * 2018-03-30 2024-03-19 中国工程物理研究院核物理与化学研究所 Electrode connecting device for pulse xenon lamp

Similar Documents

Publication Publication Date Title
CN104051224A (en) High temperature metal sealing-in high power pulse xenon lamp and manufacturing method thereof
CN108565204A (en) A kind of xenon flash lamp electrode connection device
CN207993802U (en) A kind of xenon flash lamp electrode connection device
WO2015059589A1 (en) Discharge lamp
US6262533B1 (en) Starting electrode for high pressure discharge lamp
CN101459031B (en) Electrode assembly, electric arc tube special for ceramic method halide lamp, and manufacturing method thereof
CN104658855A (en) Double-ended lamp
CN205464740U (en) Special super water -cooling argon arc welder of build -up welding
CN210692796U (en) Disconnect-type pyrocondensation terminal
CN210866524U (en) Novel soldering tin ring waterproof heat-shrinkable tube
CN203377552U (en) Drawing head of high voltage crosslinked cable
CN205828346U (en) A kind of both-end sodium vapor lamp
CN204464236U (en) A kind of double-ended lamps
CN201242997Y (en) Tungsten molybdenum niobium electrode for ceramic metallic halogen lamp
CN207447583U (en) Welding protection device and welding rifle
CN205828347U (en) A kind of Double end metal halogen lamp
CN203367229U (en) Special electrode subassembly for medium-and-high power cermethalide lamp
CN201571211U (en) Repaired joint of electric trace pipe
CN205764384U (en) The welding apparatus in pipe of butt tube
CN106898539B (en) A kind of xenon flash lamp and its method for sealing
CN204464237U (en) A kind of compact long-life double-ended lamps
CN210065167U (en) Ozone generator
CN107717192B (en) Welding protection device and use method thereof
CN205278604U (en) Prevent welding metal collapsible tube of oxidation
CN217086523U (en) Ceramic gas discharge tube for backup protector

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181019

Termination date: 20190330