CN201023166Y - Improved braze hydrogen furnace - Google Patents
Improved braze hydrogen furnace Download PDFInfo
- Publication number
- CN201023166Y CN201023166Y CNU2007200051121U CN200720005112U CN201023166Y CN 201023166 Y CN201023166 Y CN 201023166Y CN U2007200051121 U CNU2007200051121 U CN U2007200051121U CN 200720005112 U CN200720005112 U CN 200720005112U CN 201023166 Y CN201023166 Y CN 201023166Y
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- hydrogen
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- heat shielding
- molybdenum
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Abstract
A modified braze welding hydrogen furnace belongs to the field of vacuum equipment, and comprises an outer furnace wall with an opening at the top, a stainless steel heat shielding arranged at the inner side of the outer furnace wall, a molybdenum heat shielding and a heater which are arranged close to the stainless steel heat shielding. The utility model is characterized in that a layer of molybdenum hydrogen conduits distributed in S shape are arranged in parallel between the molybdenum heat shielding and the heater, and the molybdenum hydrogen conduits cause a hydrogen outlet to be communicated with the surfaces of workpieces directly. With the modified structure of braze welding hydrogen furnace, the hydrogen which enters into a hydrogen furnace is preheated, and then is directly delivered to the surfaces of workpieces via the conduits. By using s-shaped hydrogen conduits instead of a heat shielding, the furnace surface temperature is reduced, meanwhile, by employing the heat dissipation of a furnace body to preheat hydrogen, an inlet of furnace body hydrogen is changed from being positioned at the top of the furnace body the furnace body to being directly delivered to the surfaces of workpieces, thereby the hydrogen atmosphere on the surfaces of workpieces is improved, the impact caused by cold hydrogen to the temperature homogeneousness in the furnace is decreased, thus, the utility model has the distinguishing features that the temperature is more homogeneous, the atmosphere around workpieces is cleaner and the like.
Description
Technical field
The utility model belongs to the vacuum equipment field, specially refers to a kind of a kind of modified soldering hydrogen stove that is used for the vacuum device manufacturing process.
Background technology
Because the extensive use of microwave vacuum device in the national defence field, in device manufacturing processes, press for and make high-quality, highly reliable various microwave device products.Soldering processes are important key link in the microwave vacuum device fabrication.And present case tends to because the soldering processes instability or the weldquality of microwave device are bad, causes device gas leakage, and the qualification rate of device and reliability are reduced greatly.The main temperature homogeneity with soldering hydrogen stove at present of the quality of soldering is not good relevant with the interior hydrogen atmosphere of hydrogen stove, and these two factors cause the quality of soldering and product percent of pass lower.Present hydrogen furnace structure, the hydrogen that enters be through preheating, directly fed in the body of heater by the room temperature pipeline, and there is not the impact of temperature in the hydrogen of preheating to workpiece in the stove, causes the non-uniform temperature of surface of the work; The air inlet of hydrogen is at the top of body of heater simultaneously, clean some direct contact workpiece of hydrogen, another part arrives workpiece through the heat shielding of being located at the workpiece top, often the foul on the heat shielding is taken to the surface of workpiece, and workpiece itself is owing to the volatile matter of surperficial high temperature can not in time be taken away by the hydrogen that flows.Because the relatively poor and non-uniform temperature of atmosphere of surface of the work, the scolder that causes flowing can not fully soak into the weld seam of whole work-piece and cause welding quality low.The utility model is exactly to center on the problem that exists in the soldering hydrogen furnace structure and the innovation problem that proposes.
Summary of the invention
The utility model technical issues that need to address are to make the improvement of hydrogen furnace structure and the internal temperature that brings is more even, and the atmosphere around the workpiece is cleaner.
The technical scheme of the utility model technical solution problem is following realization, a kind of modified soldering hydrogen stove, comprise that the top contains the outer furnace wall of opening, the molybdenum heat shielding, the heater that are arranged at the stainless steel heat shielding of outer furnace wall inboard and are adjacent setting, it is characterized in that between molybdenum heat shielding and heater, the molybdenum matter Hydrogen Line of the S-shaped arrangement of one deck is set abreast, surface of the work is directly led in the gas outlet of hydrogen.Described S shape molybdenum matter Hydrogen Line not only can substitute the effect of heat shielding, can also make hydrogen be preheating to temperature near workpiece, when hydrogen when pipeline is delivered to surface of the work, make surface of the work can keep a hydrogen atmosphere that temperature is uniform, clean.Described hydrogen furnace roof portion opening part is the introducing passage as molybdenum matter Hydrogen Line.And in the former structure, top open part is direct inlet as hydrogen, can't directly be introduced into surface of the work.
The utility model compared with prior art has following beneficial effect, and improved soldering hydrogen furnace structure makes the hydrogen that enters the hydrogen stove directly deliver to surface of the work through preheating and by pipeline.Hydrogen Line with the S type substitutes one deck heat shielding, reduces the temperature on body of heater surface, utilizes body of heater to dispel the heat to the hydrogen preheating simultaneously, and the inlet of body of heater hydrogen is changed to the surface of directly delivering to workpiece by the top of body of heater, has improved the hydrogen atmosphere of surface of the work.Reduced because cold hydrogen is given the impact of the temperature homogeneity in the stove, had the more uniform temperature of making, the workpiece cleaner characteristics of atmosphere on every side.
Description of drawings
Fig. 1 is traditional hydrogen furnace structure schematic diagram.
Fig. 2 is a hydrogen furnace structure schematic diagram of the present utility model.
Fig. 3 is a S shape molybdenum matter Hydrogen Line schematic diagram in the body of heater.
The specific embodiment
With reference to Fig. 1, represent traditional hydrogen furnace structure, its outer furnace wall 1, its inboard is provided with the stainless steel heat shielding 2 that is parallel to the furnace wall, and inwardly the adjacent molybdenum heat shielding 3 that is provided with inwardly is heater 4 again, and it can adopt plate-like electric furnace heating wire or plate shaped electric heating piece.Be provided with working tray 5 in furnace chamber inside, welded piece 6 is placed on the carriage.In traditional burner, 7 is the hydrogen inlet port; With reference to Fig. 2, interior one deck of the hydrogen stove molybdenum heat shielding 3 of expression the utility model modified hydrogen stove is replaced by the S shape molybdenum matter pipe 8 among Fig. 3, this molybdenum matter pipe is made the S-shaped pipe shape Hydrogen Line of bending, enter hydrogen in the stove at first directly deliver to through piping 8 and by outlet 9 workpiece directly over.With reference to Fig. 3, the described S shape of expression this patent molybdenum matter pipeline schematic diagram.
Claims (2)
1. modified soldering hydrogen stove, comprise that the top contains the outer furnace wall of opening, the molybdenum heat shielding, the heater that are arranged at the stainless steel heat shielding of outer furnace wall inboard and are adjacent setting, it is characterized in that between molybdenum heat shielding and heater, the molybdenum matter Hydrogen Line of the S-shaped arrangement of one deck is set abreast, surface of the work is directly led in the gas outlet of hydrogen.
2. the described modified soldering of root claim 1 hydrogen stove is characterized in that, described hydrogen furnace roof portion opening part is the introducing passage as molybdenum matter Hydrogen Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200051121U CN201023166Y (en) | 2007-02-13 | 2007-02-13 | Improved braze hydrogen furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200051121U CN201023166Y (en) | 2007-02-13 | 2007-02-13 | Improved braze hydrogen furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201023166Y true CN201023166Y (en) | 2008-02-20 |
Family
ID=39097021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200051121U Expired - Fee Related CN201023166Y (en) | 2007-02-13 | 2007-02-13 | Improved braze hydrogen furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201023166Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117750A (en) * | 2014-07-17 | 2014-10-29 | 中国科学院近代物理研究所 | Four-airfoil-type radio frequency quadrupole-field accelerator cavity hydrogen furnace brazing method |
| CN104526098A (en) * | 2015-01-06 | 2015-04-22 | 常州大学 | Protection and reduction method for gas in small gas bottle continuous brazing furnace |
| CN105234569A (en) * | 2015-10-13 | 2016-01-13 | 甘肃虹光电子有限责任公司 | Hydrogen furnace welding method |
| CN104117750B (en) * | 2014-07-17 | 2016-11-30 | 中国科学院近代物理研究所 | Four aerofoil profile radio frequency four polar field accelerator cavity hydrogen slice soldering methods |
| CN114535742A (en) * | 2020-11-11 | 2022-05-27 | 马丁·施韦克哈特 | Method for operating a vacuum system and vacuum system |
-
2007
- 2007-02-13 CN CNU2007200051121U patent/CN201023166Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117750A (en) * | 2014-07-17 | 2014-10-29 | 中国科学院近代物理研究所 | Four-airfoil-type radio frequency quadrupole-field accelerator cavity hydrogen furnace brazing method |
| CN104117750B (en) * | 2014-07-17 | 2016-11-30 | 中国科学院近代物理研究所 | Four aerofoil profile radio frequency four polar field accelerator cavity hydrogen slice soldering methods |
| CN104526098A (en) * | 2015-01-06 | 2015-04-22 | 常州大学 | Protection and reduction method for gas in small gas bottle continuous brazing furnace |
| CN105234569A (en) * | 2015-10-13 | 2016-01-13 | 甘肃虹光电子有限责任公司 | Hydrogen furnace welding method |
| CN114535742A (en) * | 2020-11-11 | 2022-05-27 | 马丁·施韦克哈特 | Method for operating a vacuum system and vacuum system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Hauxia Microwave Electronic Co.,Ltd. Assignor: Huadong Photoelectric Technique Institute of Anhui Province Contract record no.: 2010340000097 Denomination of utility model: Improved braze hydrogen furnace Granted publication date: 20080220 License type: Exclusive License Record date: 20100705 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20140213 |