CN101690987A - Magnetron assembling and welding process and welding material thereof - Google Patents
Magnetron assembling and welding process and welding material thereof Download PDFInfo
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- CN101690987A CN101690987A CN200910192021A CN200910192021A CN101690987A CN 101690987 A CN101690987 A CN 101690987A CN 200910192021 A CN200910192021 A CN 200910192021A CN 200910192021 A CN200910192021 A CN 200910192021A CN 101690987 A CN101690987 A CN 101690987A
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- welding
- magnetron
- assembling
- temperature
- ceramic piece
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- 238000003466 welding Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 48
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 29
- 239000011733 molybdenum Substances 0.000 claims abstract description 28
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 21
- 239000001257 hydrogen Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000006023 eutectic alloy Substances 0.000 claims abstract description 18
- 238000005476 soldering Methods 0.000 claims description 17
- 238000007747 plating Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 238000005219 brazing Methods 0.000 abstract description 5
- 238000001465 metallisation Methods 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910003296 Ni-Mo Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910000905 alloy phase Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
A magnetron assembling and welding process and a welding material thereof are disclosed, wherein the magnetron assembling and welding process comprises the following steps: a) placing a brazing sheet made of an AgCuNi eutectic alloy material between the end lead sheet and the ceramic piece metallization layer, and enabling a central molybdenum support rod and side molybdenum support rods which are not plated with nickel to penetrate through holes with the same central axis of the ceramic piece, the brazing sheet and the end lead sheet; b) after the cathode assembly, the ceramic piece, the brazing sheet and the end guide sheet are kept at relatively fixed positions, the cathode assembly, the ceramic piece, the brazing sheet and the end guide sheet are placed in a heating cavity of a hydrogen furnace for heating; c) when the temperature in the heating cavity of the hydrogen furnace rises to 810-830 ℃, the temperature is preserved for 5-10 minutes, and then the hydrogen furnace is naturally cooled to the room temperature in the hydrogen protection environment. The welding materials respectively account for the following mass percent: 27-29% of Cu, 0.2-2% of Ni and the balance of Ag. The invention can effectively solve the problem of insufficient welding compactness between the molybdenum rod material and the metallized layer ceramic piece and ensure that the vacuum degree of the magnetron is not influenced.
Description
Technical field
The present invention relates to a kind of process for assembling and welding magnetron and welding material thereof.
Background technology
Existing magnetron, see accompanying drawing 1-accompanying drawing 2, it comprises cathode assembly A, ceramic member 3 and the end leader 5 with center molybdenum strut 2 and limit molybdenum strut 1, the end of insertion ceramic member 3 parts of center molybdenum strut 2 and limit molybdenum strut 1 is provided with nickel coating 2.1, ceramic member 3 is provided with metal layer 3.1 with a side end face of end leader 5 welding, and the soldering lug 4 that center molybdenum strut 2 and limit molybdenum strut 1 are made by the AgCu28 eutectic material welds together with the metal layer 3.1 and the end leader 5 of ceramic member 3.Wherein, before welding, soldering lug 4 has and ceramic member 3 and the basic the same hole of the coaxial substantially heart of end leader 5 and aperture.The assembly technology of magnetron comprises the steps:
The 1 surface local nickel plating at the terminal part of the center of cathode assembly A molybdenum strut 2 and limit molybdenum strut 1 is to form nickel coating 2.1;
2 soldering lugs 4 that AgCu28 eutectic alloy material is made are placed on 3.1 of end leader 5 and ceramic metallized layers, and center molybdenum strut 2 and limit molybdenum strut 1 are passed the hole that ceramic member 3 and soldering lug 4 and end leader 5 have same central axis;
3 cathode assembly A, ceramic member 3, soldering lug 4 and end leader 5 remained on the relative fixed position after, place hydrogen stove heating chamber to heat;
4 are incubated 5～10 minutes when hydrogen stove heating chamber temperature liter is put 810～830 ℃, naturally cool to room temperature then in the hydrogen shield environment.
In above-mentioned assembly technology, the soldering lug 4 that AgCu28 eutectic alloy material is made melts after 810 ℃, when cooled and solidified, the nickel coating 2.1 of ceramic member metal layer 3.1 with end leader 5 and center molybdenum strut 2 and limit molybdenum strut 1 is weldingly fixed on.
In above-mentioned magnetron assembly technology, center molybdenum strut 2 and, the nickel plating technology complexity of limit molybdenum strut 1, cause the manufacturing cost of magnetron to increase, if yet not nickel plating, wetability and spreading property during then owing to the welding of AgCu28 eutectic alloy soldering lug on the molybdenum material are poor, to reduce the sealing of magnetron, cause the vacuum of magnetron to reduce easily, influence the serviceability of magnetron.
Summary of the invention
Purpose of the present invention aim to provide a kind of cost of manufacture low, can effectively solve the molybdenum rod material and have between the metal layer ceramic member welding compactness deficiency and guarantee the impregnable process for assembling and welding magnetron of vacuum and the welding material thereof of magnetron.
A kind of process for assembling and welding magnetron by this purpose design is characterized in that comprising the steps:
A) soldering lug that AgCuNi eutectic alloy material is made is placed between end leader and the ceramic member metal layer, and the center molybdenum strut and the limit molybdenum strut of not nickel plating passed the hole that ceramic member and soldering lug and end leader have same central axis;
B) cathode assembly, ceramic member, soldering lug and end leader are remained on the relative fixed position after, place hydrogen stove heating chamber to heat;
C) when the temperature in the hydrogen stove heating chamber rises to 810～830 ℃, be incubated 5～10 minutes, then at H
2Naturally cool to room temperature in the protective atmosphere.
The temperature of described hydrogen stove heating chamber is incubated 5 minutes in the time of 820 ℃.
Described in hydrogen stove heating chamber the temperature rise in when heating be controlled at 15～30 ℃/min.
A kind of welding material of process for assembling and welding magnetron is characterized in that welding material: the component of AgCuNi eutectic alloy material is Cu, Ag and Ni, and its shared separately mass percent is: Cu is 27～29%, and Ni is 0.2～2%, and surplus is Ag.
The mass percent of each component is in the described AgCuNi eutectic alloy material: Cu is 28%, and Ni is 0.5～0.7%, and surplus is Ag.
The welding material that the present invention uses in process for assembling and welding magnetron: AgCuNi eutectic alloy material, be on the basis of AgCu28 eutectic alloy solder, to add a little Ni, form the AgCuNi solder, it obtains by the following method: will be as mentioned above alloy raw material melting and casting, hot rolling and the cold rolling process in a vacuum of Ni, the Cu of mass percent and Ag, obtain ductility good, to the wetting good active A gCuNi solder of molybdenum rod.
The present invention is because used welding material is the soldering lug that AgCuNi eutectic alloy material is made, the wettability spreading property of this welding material is strong, can be directly the molybdenum strut of not nickel plating and ceramic member metal layer and end leader be welded together, and the gas sealing ability that can guarantee magnetron is not subjected to external influence, therefore saved complicated procedures of forming, greatly reduced the manufacturing cost of magnetron at center molybdenum strut and limit molybdenum strut parcel plating nickel.
Description of drawings
Fig. 1 is the structural representation of existing magnetron.
Fig. 2 is the B place enlarged drawing among Fig. 1.
Fig. 3 is a Ni-Mo alloy phase diagram of the present invention
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Below continue to use with background technology in identical Reference numeral.
Referring to Fig. 3, this process for assembling and welding magnetron comprises the steps:
A) soldering lug 4 that AgCuNi eutectic alloy material is made is placed between end leader 5 and the ceramic member metal layer 3.1, and the center molybdenum strut 2 and the limit molybdenum strut 1 of not nickel plating passed the hole that ceramic member 3 and soldering lug 4 and end leader 5 have same central axis;
B) cathode assembly A, ceramic member, soldering lug and end leader are remained on the relative fixed position after, place hydrogen stove heating chamber to heat;
C) when the temperature in the hydrogen stove heating chamber rises to 810～830 ℃, be incubated 5～10 minutes, in the hydrogen shield environment, naturally cool to room temperature then.
When the temperature of hydrogen stove heating chamber during, be incubated 5 minutes at 820 ℃.
Described in hydrogen stove heating chamber the temperature rise in when heating be controlled at 15～30 ℃/min.
Wherein, nickel plating had not both comprised and had not passed through Nickel Plating Treatment, not at its surface parcel nickel coating yet.
With reference to the accompanying drawings the Ni-Mo alloy phase diagram shown in 3 as can be known, when X (Ni)=61.6%, as the active element in the solder, Ni and Mo can form eutectic alloy.According to this character, when adding behind a little the Ni formed solder fusing in existing AgCu28 base-material, the nickel in the solder will interact with molybdenum, and the activity of raising solder makes the AgCu solder strengthen greatly the wetability of molybdenum.
Employed AgCuNi eutectic alloy material is to add a little Ni on the basis of AgCu28 eutectic alloy solder in the above-mentioned magnetron assembling technology, and its shared separately mass percent is: Cu is 27～29%, and Ni is 0.2～2%, and surplus is Ag.
The mass percent of the preferred each component of this AgCuNi eutectic alloy material is: Cu is 28%, and Ni is 0.5～0.7%, and surplus is Ag.
During making: the alloy material that can be that Ni is 0.5～0.7% with mass percent, Cu is 28%, surplus is Ag is melting and casting, hot rolling, operation such as cold rolling in a vacuum, obtain at last a kind of ductility good, to the wetting good active A gCuNi of molybdenum rod, brazing temperature is consistent with AgCu28 between 810～830 ℃.
Claims (5)
1. a process for assembling and welding magnetron is characterized in that comprising the steps:
A) soldering lug (4) that AgCuNi eutectic alloy material is made is placed between end leader (5) and the ceramic member metal layer (3.1), and the center molybdenum strut (2) and the limit molybdenum strut (1) of not nickel plating passed the hole that ceramic member (3) and soldering lug and end leader (5) have same central axis;
B) cathode assembly (A), ceramic member, soldering lug and end leader are remained on the relative fixed position after, place hydrogen stove heating chamber to heat;
C) when the temperature in the hydrogen stove heating chamber rises to 810～830 ℃, be incubated 5～10 minutes, in the hydrogen shield environment, naturally cool to room temperature then.
2. process for assembling and welding magnetron according to claim 1, the temperature that it is characterized in that described hydrogen stove heating chamber are incubated 5 minutes in the time of 820 ℃.
3. process for assembling and welding magnetron according to claim 1 and 2, it is characterized in that described in hydrogen stove heating chamber the temperature rise in when heating be controlled at 15～30 ℃/min.
4. the welding material of a process for assembling and welding magnetron as claimed in claim 1, it is characterized in that welding material: the component of AgCuNi eutectic alloy material is Cu, Ag and Ni, its shared separately mass percent is: Cu is 27～29%, and Ni is 0.2～2%, and surplus is Ag.
5. the welding material of process for assembling and welding magnetron according to claim 4, it is characterized in that the mass percent of each component in the described AgCuNi eutectic alloy material is: Cu is 28%, and Ni is 0.5～0.7%, and surplus is Ag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192021A CN101690987A (en) | 2009-08-30 | 2009-08-30 | Magnetron assembling and welding process and welding material thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910192021A CN101690987A (en) | 2009-08-30 | 2009-08-30 | Magnetron assembling and welding process and welding material thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101690987A true CN101690987A (en) | 2010-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910192021A Pending CN101690987A (en) | 2009-08-30 | 2009-08-30 | Magnetron assembling and welding process and welding material thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303193A (en) * | 2011-08-05 | 2012-01-04 | 佛山市海欣光电科技有限公司 | Welding and machining method of electrode current-conducting parts such as terminal and current-conducting rod of magnetron |
| CN103567658A (en) * | 2012-08-09 | 2014-02-12 | 广东威特真空电子制造有限公司 | Silver brazing solder and preparation method of silver brazing solder |
| CN104275576A (en) * | 2013-07-05 | 2015-01-14 | 佛山市海欣光电科技有限公司 | Production method of components for supporting magnetron electrodes |
| CN105234569A (en) * | 2015-10-13 | 2016-01-13 | 甘肃虹光电子有限责任公司 | Hydrogen furnace welding method |
| CN105921908A (en) * | 2016-06-23 | 2016-09-07 | 国网江苏省电力公司宿迁供电公司 | Silver solder and preparation method thereof |
| CN111843087A (en) * | 2020-07-07 | 2020-10-30 | 哈尔滨工业大学 | Vacuum brazing process method for inhibiting high-temperature nitrogen precipitation in high-nitrogen steel |
| CN112238274A (en) * | 2020-08-07 | 2021-01-19 | 广东格兰仕微波炉电器制造有限公司 | Assembling process of magnetron cathode assembly |
-
2009
- 2009-08-30 CN CN200910192021A patent/CN101690987A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303193A (en) * | 2011-08-05 | 2012-01-04 | 佛山市海欣光电科技有限公司 | Welding and machining method of electrode current-conducting parts such as terminal and current-conducting rod of magnetron |
| CN102303193B (en) * | 2011-08-05 | 2014-05-21 | 佛山市海欣光电科技有限公司 | Welding and machining method of electrode current-conducting parts such as terminal and current-conducting rod of magnetron |
| CN103567658A (en) * | 2012-08-09 | 2014-02-12 | 广东威特真空电子制造有限公司 | Silver brazing solder and preparation method of silver brazing solder |
| CN103567658B (en) * | 2012-08-09 | 2016-06-08 | 广东威特真空电子制造有限公司 | A kind of silver solder and its preparation method |
| CN104275576A (en) * | 2013-07-05 | 2015-01-14 | 佛山市海欣光电科技有限公司 | Production method of components for supporting magnetron electrodes |
| CN105234569A (en) * | 2015-10-13 | 2016-01-13 | 甘肃虹光电子有限责任公司 | Hydrogen furnace welding method |
| CN105921908A (en) * | 2016-06-23 | 2016-09-07 | 国网江苏省电力公司宿迁供电公司 | Silver solder and preparation method thereof |
| CN111843087A (en) * | 2020-07-07 | 2020-10-30 | 哈尔滨工业大学 | Vacuum brazing process method for inhibiting high-temperature nitrogen precipitation in high-nitrogen steel |
| CN112238274A (en) * | 2020-08-07 | 2021-01-19 | 广东格兰仕微波炉电器制造有限公司 | Assembling process of magnetron cathode assembly |
| CN112238274B (en) * | 2020-08-07 | 2021-08-31 | 广东格兰仕微波炉电器制造有限公司 | Assembling process of magnetron cathode assembly |
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Open date: 20100407 |