CN1176479A - Terminal cap parts for magnetron and its producing method - Google Patents
Terminal cap parts for magnetron and its producing method Download PDFInfo
- Publication number
- CN1176479A CN1176479A CN97118094A CN97118094A CN1176479A CN 1176479 A CN1176479 A CN 1176479A CN 97118094 A CN97118094 A CN 97118094A CN 97118094 A CN97118094 A CN 97118094A CN 1176479 A CN1176479 A CN 1176479A
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- China
- Prior art keywords
- solder
- end cap
- main body
- cap main
- annular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/02—Electrodes; Magnetic control means; Screens
- H01J23/04—Cathodes
- H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2225/00—Transit-time tubes, e.g. Klystrons, travelling-wave tubes, magnetrons
- H01J2225/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microwave Tubes (AREA)
Abstract
An end hat component in which a ring-shaped brazing filler material is previously fastened to the inside of an end hat, with which the man-hours for the manufacture is reduced and also it is possible to suppress the generating of inferior goods based upon complication in handling of the brazing filler material and generation of a poor performance of brazing or the like resulting from the bonding agent in use. As an end hat component concerned 11 is equipped with an end hat body 12 consisting of Mo and a ring-shaped brazing filler material 13 consisting of a sinter of Mo-Ru or Mo-Ru-Ni brazing filler material, where the ring-shaped brazing filler material 13 is attached to a prescribed position on the end hat body 12 by a laser welded part 14 or a paste form brazing filler material consisting of the same substance as the ring-shaped brazing filler material.
Description
The present invention relates to a kind of terminal cap parts and manufacture method thereof that is used for the magnetron of high-frequency electronic food heater etc.
In the past, as the negative pole part of the magnetron that is used for high-frequency electronic food heater etc., as shown in Figure 6, known main composition is as follows: coiled type filament 1, send hot electron; Top and bottom end cap 3,4 are made up of the Mo that engages by Mo-Ru scolder or Mo-Ru-Ni scolder 2 respectively in the upper end and the lower end of this coiled type silk 1; Central tap 5 is connected and fixed on top end cap 3; Side lead-in wire 6 is fixedly connected on bottom end cap 4.
The soldering of coiled type silk 1 in the above-mentioned negative pole part assembly process and end cap 3,4 is performed such: at first see Fig. 7, in end cap 3,4, insert the annular solder of forming by Mo-Ru or Mo-Ru-Ni 7 on the certain position, coiled type filament 1 is configured on this annular solder 7, then, move into soldering oven and do heat treatment.
Yet, as mentioned above, just annular solder 7 is inserted in the end cap 3,4 and can have such problem: because the external diameter size differences of end cap 3,4 internal diameters and annular solder 7 is little, so in case off-centre etc. takes place when inserting, then can cause annular solder 7 to insert bad, also can make annular solder 7 run-off the straights and float etc. even if perhaps insert, when causing soldering 7 fusings of annular solder irregular so that it is bad etc. to produce soldering and fitted position.
So, proposed scheme one and in advance the solder configuration be fixed on the end cap assigned position.For example, open in the clear 58-53136 communique the spy and to have showed a kind of terminal cap parts, the press-powder body of Mo and Ru mixed-powder (solder) is adhered to (bonding) on the end cap surface with organic bond etc.And, open in the clear 58-157593 communique the spy and to disclose a kind of method,, the solder of this slurryization is coated on the end cap surface Mo and Ru mixed-powder or alloy powder (solder) and organic bond and organic solvent mixing, then, heating, drying under the temperature of 1273～1673k.
But, in above-mentioned existing solder configuration fixing means, with organic bond etc. the former solder press-powder body being bonded to the existing problem of the lip-deep method of end cap is: at first, because of solder is the press-powder body, the operability extreme difference, for example when carrying solder to insert in the end cap with vacuum suction, easily take place to insert bad and damage etc.; Also have, problem is because with bonding solders like this such as organic bonds, adhesive ingredients probably can produce bad influence to solder; Be problematic in that the method to the latter's slurry solder heating, drying, because of being difficult to ensure the solder quantity of regulation, will make high-temperature process twice to solder heat-agglomerating and soldering simultaneously, institute is so that the cost raising.
In addition, also having scheme is that the annular solder hot charging of being made up of Mo-Ru solder or Mo-Ru-Ni solder sintered body (is opened clear 60-18314,60-86731,60-91531 equal sign communique with reference to the spy) in end cap.Yet, owing to also will make twice high-temperature process in this case, cost is increased, problem is still unresolved.
According to above-mentioned situation, in order to suppress in the end cap of negative pole part assembling, to insert the bad of annular solder, and bad etc. the generation of soldering and fitted position, in the terminal cap parts that in advance annular solder is fixed in the end cap, the problem that is proposed is to seek to reduce its manufacturing process, it is bad to suppress the insertion that forms because of solder operating characteristics difference etc. simultaneously, and forms bad etc. the generation of soldering because of binding material.
The present invention is in order to deal with problem like this, its purpose is to provide a kind of terminal cap parts and manufacture method thereof of magnetron, in the terminal cap parts that in advance annular solder is fixed in the end cap, seek to reduce quantity in its in man-hour, can suppress generations such as bad and damage of the insertion of annular solder and soldering be bad simultaneously.
The present invention is used for the terminal cap parts of magnetron, it is characterized in that, has the annular solder that the end cap main body be made up of Mo and Mo-Ru solder or Mo-Ru-Ni solder sintered body are formed, described annular solder with laser welding or with the pulp-like solder of the same material of described annular solder, be fixed on the certain position of described end cap main body.
The present invention first is used for the terminal cap parts manufacture method of magnetron, it is characterized in that, has following operation: on the end cap main body certain position that Mo forms, and the annular solder that configuration Mo-Ru solder or Mo-Ru-Ni solder sintered body are formed; Described annular solder is tied on described end cap main body with Laser Welding, and described annular solder is fixed on the described end cap main body.
First is used for the terminal cap parts manufacture method of magnetron, it is characterized in that, does the multiple spot welding simultaneously with laser, facing to the fixing described annular solder of described end cap main body.
The present invention second is used for the terminal cap parts manufacture method of magnetron, it is characterized in that, has following operation: on the end cap main body certain position that Mo forms, coating contains the pulp-like solder of Mo-Ru solder or Mo-Ru-Ni solder; Configuration then, makes it heat drying by the annular solder of forming with the sintered body of the Mo-Ru solder of the same material of described pulp-like solder or Mo-Ru-Ni solder on described pulp-like solder overlay, and described ring-type solder is fixed on the described end cap main body.
In the present invention,, can reduce the damage when operating greatly and insert bad generation owing to be the sintered body looping solder of using Mo-Ru solder or Mo-Ru-Ni solder.And, because end cap main body and annular solder are with laser welding or use with the pulp-like solder of the same material of annular solder and fix, so can increase work efficiency, reduce manufacturing cost, simultaneously can good repeatability obtain good stationary state, can fully stand the vibration and the impact of magnetron cathode portion assembly process.In addition, immobilization material can attack when soldering yet.
And, use under the laser welding situation fixedly the time at the annular solder of opposite end cap main body, especially utilize multiple spot welding simultaneously, can improve the steady job efficient of annular solder greatly.In addition, utilize laser welding, because of need not to do heat, so also can prevent the bad generation that the difference because of the shrinkage of annular solder and end cap main body forms.
Fig. 1 is the cutaway view that expression terminal cap parts first embodiment of the present invention constitutes;
Fig. 2 is the cutaway view of the terminal cap parts manufacturing process shown in the presentation graphs 1;
Fig. 3 is other operation examples of laser welding figure of the terminal cap parts manufacturing process shown in the presentation graphs 2;
Fig. 4 is the cutaway view that expression terminal cap parts second embodiment of the present invention constitutes;
Fig. 5 is the cutaway view that the terminal cap parts shown in the presentation graphs 4 is made preface;
Fig. 6 is the cutaway view that expression magnetron cathode portion constitutes;
Fig. 7 is the cutaway view of the existing negative pole part assembly process major part of expression;
The present invention is described with reference to the accompanying drawings.
Fig. 1 is the cutaway view that expression terminal cap parts first embodiment of the present invention constitutes.Have the end cap main body of being made up of the Mo sintered body 12 with the terminal cap parts shown in the figure 11, this end cap main body 12 has the recess 12a that holds not shown coiled type filament.The Mo powder is pressed into for example definite shape, then, can obtains such end cap main body 12 by the uniform temperature sintering.
In addition, terminal cap parts 11 shown in Figure 1 is the parts that become the bottom end cap, and the through hole 12b of interspersed central tap is set in the bottom surface sections of recess 12a.And the side lead-in wire is affixed to the downside (not shown) of end cap main body 12a.Deposit under the situation that is used for the top end cap,, establish the patchhole of central tap in the bottom surface sections of recess 12a though basic comprising is the same.
In the recess 12a of above-mentioned end cap main body 12, insert the annular solder 13 that configuration is made up of the sintered body of Mo-Ru solder or Mo-Ru-Ni solder, utilize laser welding (laser welding portion 14) that this annular solder 13 is fixed on the end cap main body 12.The so-called spot welding of 14 usefulness of laser welding portion is good, and more preferably greater than Liang Chu, three places are above good.
Wherein, even in the Mo-Ru solder 30% of the not enough weight of amount of Ru, perhaps 60% of overweight, then its fusing point is all too high, also can damage the function as solder.And, cooperate the Ni of weight below 40% for such Mo-Ru solder, though can make the fusing point of solder lower whereby, 60% of an overweight, then fusing point excessively descends, because the working temperature of magnetron probably will cause solder portion intensity decreases etc.The cryogenic effect of the practicality fusing point that is produced by the Ni cooperation obtains by the ratio of weight 10%.In annular solder 13, also can use in Mo-Ru solder and the Mo-Ru-Ni solder any, can suitably select to use according to purposes and manufacturing process etc.
Exemplify following method and make the terminal cap parts 11 of this first embodiment.
Promptly at first shown in Fig. 2 (a), prepare the end cap main body 12 formed by concavity section Mo sintered body, the ring-type solder of being made up of Mo-Ru or Mo-Ru-Ni sintered body 13 is disposed in insertion this end cap main body 12 in.
Then shown in Fig. 2 (b), near periphery outside the annular solder 13 of end cap main body 12, shine, make end cap main body 12 and 13 spot welding of ring-type solder as YAG laser 15.
Use resembles this YAG laser 15 and does spot welding at 3～4 places of the outer peripheral portion of annular solder 13, with the Laser Welding knot portion 14 at 3～4 places ring-type solder 13 is fixed on the end cap main body 12, obtains the terminal cap parts 11 of requirement shown in Figure 1 whereby.
And for the fixing operation of the end cap main body 12 of annular solder 13, also available laser is made the multiple spot welding knot simultaneously.For example shown in Figure 3, use and for example to do the three beams beam split in the optic 16 of sending laser (laser soldering device (laser irradiation device) 17 of laser 15a～15c) is as making three means of spot welds simultaneously.18 are laser oscillators among the figure in addition.Use such laser soldering device 17, can advance a fixing operation efficient that improves ring-type solder 13.
In the terminal cap parts 11 of above-mentioned first embodiment, at first by Mo-Ru solder sintered body or Mo-Ru-Ni solder sintered body looping solder 13, because annular solder 13 has the vibrations of fully bearing in the processing and the intensity of impact, so the bad incidence of insertions in bad and past the end cap main bodys 12 such as breakage can reduce operation greatly the time.
In addition, because with operating efficiency very high laser welding stiff end cap main body 12 and annular solder 13, so can reduce the manufacturing cost of terminal cap parts 11, simultaneously, the good same state of deciding of the vibration and the impact of magnetron cathode portion assembly technology is fully born in repeatability acquisition that can be good.Especially use multiple spot and weld simultaneously, can further reduce the manufacturing cost of terminal cap parts 11.And, because of residual soldering is not had dysgenic bonding component at the standing part of laser welding, so can carry out weld job well.
Above-mentioned end cap spare 11 in the recess 12a of the end cap main body 12 of stationary annular solder 13, inserts layout line round filament, such as heating soldering coiled type filament in non-oxidizing atmosphere in the assembly process of magnetron cathode portion.
In the assembly process of this magnetron cathode portion, annular solder 13 is fixed in the end cap main body 12 with good state, owing to can stably go into coiled type filament etc. easily to end cap main body 12 interpolations, so can prevent to descend because of annular solder 13 inserts the bad productivity ratio that causes, it is bad etc. to restrain generation soldering and fitted position simultaneously.Have again,, soldering is had dysgenic bonding component, so can stably obtain the good bond state of coiled type filament because of not leaving at the standing part of laser welding.Its result, magnetron cathode portion assembly precision improves, and it is bad to suppress that assembling operation takes place, thereby obtains the raising of fluorescent tube characteristic and productivity ratio.
Then, with reference to Fig. 4 second embodiment of the invention is described
The terminal cap parts 21 that resembles this second embodiment is as being made as follows.
Promptly at first shown in Fig. 5 (a), the end cap main body 12 that preparation is made up of the Mo sintered body of concavity section, on the annular solder configuration 12c of portion in end cap main body 12, the material (pulp-like solder) 22 ' of form slurry is made in an amount of coating by Mo-Ru or Mo-Ru-Ni solder.
The application that is coated with of above-mentioned pulp-like solder 22 ' is carried out such as the method for salary distribution or other modes.This coating both can also can be made Local treatment along full Zhou Jinhang.As pulp-like solder 22 ', can be used on and mix an amount of bond and the material of organic solvent in Mo-Ru or the Mo-RuNi solder.
Then as Fig. 5 (b) shown in, on the overlay of the pulp-like solder 22 ' end cap main body 12 in, insertion is disposed by the bad shape solder of forming with the Mo-Ru or the Mo-Ru-Ni solder sintered body of pulp-like solder 22 ' same material 13.Then, in order to improve the associativity that end cap main body 12 and pulp-like solder 22 ' also have ring-type solder 13, axially applying the weak pressure (shown in arrow among the figure) that does not ftracture and exceed with ring-type solder 13.
And then shown in Fig. 5 (c), do low-temperature heat (for example 535k) with above-mentioned state, and making the overlay dry solidification of pulp-like solder 22 ', the dry solidification layer 22 by the pulp-like solder is fixed on ring-type solder 13 on the end cap main body 12.
In the terminal cap parts 21 of above-mentioned second embodiment, the same with first embodiment, constitute ring-type solder 13 by Mo-Ru or Mo-Ru-Ni solder sintered body, since ring-type solder 13 have abundant tolerance when handling vibrations and the intensity of impact, so can reduce greatly because of processing produce damage etc. bad and to end cap main body 12 in bad etc. the incidence of insertion.
And, because the pulp-like solder 22 ' of coating and ring-type solder 13 same materials, by making its dry solidification stiff end cap main body 12 and ring-type solder 13, so, can reduce the manufacturing cost of terminal cap parts 21, simultaneously can good reappearance obtain tolerating the stationary state of packaging technology vibrations of magnetron cathode portion and impact etc.In addition, the also not remaining bonding composition that is unfavorable for soldering.
Above-mentioned terminal cap parts 21 is the same with first embodiment, in magnetron cathode portion assembling procedure, the coiled type filament is inserted in the recess 12a be configured in the fixing end cap main body 12 of ring-type solder 13, for example heating soldering coiled type filament in non-oxidizable environment.
In the assembling procedure that resembles this magnetron cathode portion, with good state annular solder 13 is fixed on the end cap main body 12, owing to can simple and easyly stably go into the coiled type filament to end cap main body 12 interpolations, so, can prevent to cause because of the bad grade of the insertion of ring-type solder 13 decline of operating efficiency, it is bad bad with fitted position to suppress the generation soldering simultaneously.Have again, as the pulp-like solder of the adhesive linkage of ring-type solder 13 in dry cured layer 22 because soldering is had no adverse effects, so can obtain the good bond state of coiled type filament quietly.Its result, malfunction takes place because of the assembly precision that can improve magnetron cathode portion and when suppressing assembling, so can obtain the raising of magnetron cathode portion fluorescent tube characteristic and productivity ratio.
As mentioned above,, can obtain the minimizing in man-hour, suppress bad and result from that the soldering of adhesives is bad to wait generation simultaneously based on appearance such as solder operability differences according to terminal cap parts of the present invention.Take place thereby improved magnetron cathode portion assembly technology precision greatly and suppressed malfunction.
Claims (4)
1 one kinds of terminal cap parts that are used for magnetron, it is characterized in that, have end cap main body of forming by Mo and the annular solder of forming by Mo-Ru solder or Mo-Ru-Ni solder sintered body, described annular solder (13) with laser welding or with the pulp-like solder of the same material of described annular solder, be fixed on the certain position of described end cap main body (12).
2 one kinds of manufacture methods that are used for the terminal cap parts of magnetron is characterized in that, have following operation: on the certain position of the end cap main body of forming by Mo, and the annular solder that configuration is made up of Mo-Ru solder or Mo-Ru-Ni solder sintered body; Use described annular solder laser welding on described end cap main body, described annular solder is fixed on the described end cap main body.
3 as method as described in the claim 2, it is characterized in that, does the multiple spot welding simultaneously with laser, facing to the fixing described annular solder of described end cap main body.
4 one kinds of manufacture methods that are used for the terminal cap parts of magnetron is characterized in that, have following operation: deposit on the certain position of the end cap main body of being made up of Mo, coating contains the pulp-like solder of Mo-Ru solder or Mo-Ru-Ni solder; Configuration then, makes it heat drying by the annular solder of forming with the sintered body of the Mo-Ru solder of the same material of described pulp-like solder or Mo-Ru-Ni solder on described pulp-like solder overlay, and described ring-type solder is fixed on the described end cap main body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP184536/1996 | 1996-07-15 | ||
| JP184536/96 | 1996-07-15 | ||
| JP18453696 | 1996-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1176479A true CN1176479A (en) | 1998-03-18 |
| CN1123041C CN1123041C (en) | 2003-10-01 |
Family
ID=16154927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97118094A Expired - Lifetime CN1123041C (en) | 1996-07-15 | 1997-07-15 | Terminal cap parts for magnetron and its producing method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR980011615A (en) |
| CN (1) | CN1123041C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003909A (en) * | 2010-07-16 | 2013-03-27 | 株式会社东芝 | End hat for magnetron, process for producing same, and magnetron |
| CN103028859A (en) * | 2012-06-08 | 2013-04-10 | 厦门虹鹭钨钼工业有限公司 | Solder ring for magnetron cathode assembly, method for producing solder ring for magnetron cathode assembly and molybdenum end cap connecting with solder ring |
| CN103028854A (en) * | 2011-09-29 | 2013-04-10 | 葛江宏 | Copper welding method |
| CN106531597A (en) * | 2016-12-29 | 2017-03-22 | 广东威特真空电子制造有限公司 | Magnetron, cathode assembly thereof and method for manufacturing cathode assembly of magnetron |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008108540A (en) * | 2006-10-25 | 2008-05-08 | Matsushita Electric Ind Co Ltd | Magnetron |
| CN117283176A (en) * | 2023-10-27 | 2023-12-26 | 中山市美格电子科技有限公司 | Magnetron A side welding process |
-
1997
- 1997-07-14 KR KR1019970032510A patent/KR980011615A/en not_active Application Discontinuation
- 1997-07-15 CN CN97118094A patent/CN1123041C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103003909A (en) * | 2010-07-16 | 2013-03-27 | 株式会社东芝 | End hat for magnetron, process for producing same, and magnetron |
| CN103003909B (en) * | 2010-07-16 | 2015-08-19 | 株式会社东芝 | For the end cap of magnetron, its manufacture method and magnetron |
| CN103028854A (en) * | 2011-09-29 | 2013-04-10 | 葛江宏 | Copper welding method |
| CN103028859A (en) * | 2012-06-08 | 2013-04-10 | 厦门虹鹭钨钼工业有限公司 | Solder ring for magnetron cathode assembly, method for producing solder ring for magnetron cathode assembly and molybdenum end cap connecting with solder ring |
| CN106531597A (en) * | 2016-12-29 | 2017-03-22 | 广东威特真空电子制造有限公司 | Magnetron, cathode assembly thereof and method for manufacturing cathode assembly of magnetron |
| CN106531597B (en) * | 2016-12-29 | 2019-04-02 | 广东威特真空电子制造有限公司 | The method of the cathode assembly of magnetron and its cathode assembly and manufacture magnetron |
Also Published As
| Publication number | Publication date |
|---|---|
| KR980011615A (en) | 1998-04-30 |
| CN1123041C (en) | 2003-10-01 |
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