CN105033392A - Method of achieving close fit brazing via conical sleeve sealing structure - Google Patents
Method of achieving close fit brazing via conical sleeve sealing structure Download PDFInfo
- Publication number
- CN105033392A CN105033392A CN201510585349.0A CN201510585349A CN105033392A CN 105033392 A CN105033392 A CN 105033392A CN 201510585349 A CN201510585349 A CN 201510585349A CN 105033392 A CN105033392 A CN 105033392A
- Authority
- CN
- China
- Prior art keywords
- filler metal
- brazing filler
- brazing
- gap
- solder
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
Abstract
The invention discloses a method of achieving close fit brazing via conical sleeve sealing structure. The method comprises concrete steps of replacing a cylindrical sleeve sealing structure of a brazed joint work piece by a conical sleeve sealing structure, during the brazing, cleaning a contact surface of the brazed joint work piece, placing brazing filler metal around a joint gap or into the joint gap, heating the brazed joint work piece and brazing filler metal at temperature of 1 to 5 DEG C higher than brazing filler metal melting temperature, melting the brazing filler metal and wetting the surface of the braze joint work piece, liquid brazing filer metal flows and spread out along the joint gap with actions of capillaries to achieve capillarity of the brazed joint work piece, and designating a gap of the brazing joint gap of 0.05 to 0.1mm. With changes of part structures, the cylindrical sleeve sealing structure of the brazed joint work piece is changed into the conical sleeve seal structure; capillarity can be effectively and reliably formed due to a self-positioning function of the conical part with an action of gravity; and brazing filler metal can spread with evenness and stability and in a controllable way.
Description
Technical field
The present invention relates to field of aerospace technology, specifically a kind of realization utilizes coniform seal configuration to realize the method for tight fit soldering.
Background technology
Vacuum brazing belongs to the permanent connection in bonding in vacuum technology, is one of critical process of vacuum electron device production.Cylindric seal configuration is adopted man-hour because part adds, itself basic fit clearance between the tolerance range certainly existed in processing and part, make the gap of soldered fitting ensure to there is larger fluctuation, in weld seam, the amount of solder is difficult to accurately control, and is easy to the accumulation forming solder.The solder used during soldering is generally money base solder, and the saturated vapor pressure of silver is very large, if there is a large amount of stacked solders in the high-temperature region of vacuum device, is very disadvantageous to the steady operation of electron tube.
Summary of the invention
The object of the present invention is to provide a kind of solder to scatter evenly, stablize controlled realization and utilize coniform seal configuration to realize the method for tight fit soldering, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
Realize utilizing coniform seal configuration to realize a method for tight fit soldering, concrete steps are as follows:
1) coniform seal configuration is replaced with by by the cylindric seal configuration of brazing filler metal workpiece;
2), during soldering, by brazing filler metal absorption surface surface after cleaning, will assemble with joint form, solder be placed on around joint clearance or directly and put into joint clearance;
3) when being heated to together with solder by brazing filler metal workpiece after than brazing filler metal melts temperature height 1-5 DEG C, brazing filler metal melts also infiltrates by the surface of brazing filler metal workpiece;
4) liquid solder is by capillarity, and will sprawl along bonding gap flowing, thus be ensured the realization of capillarity by brazing filler metal workpiece, the gap of soldering bonding gap is 0.05-0.1mm.
As the present invention's further scheme: in described step 4), the gap of soldering bonding gap is 0.08mm.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is by changing the planform of part, make to have been changed into coniform seal configuration by the cylindric seal configuration of brazing filler metal workpiece, by conical part self-locating function under gravity, ensure that the formation of capillary gap effectively, reliably, make the wandering even, stable, controlled of solder.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing employing cylindric seal configuration when welding.
Fig. 2 is existing employing cylindric seal configuration stacked solder situation schematic diagram when welding.
Fig. 3 is schematic diagram when adopting coniform seal configuration to weld in the present invention.
Fig. 4 is stacked solder case structure schematic diagram when adopting coniform seal configuration to weld in the present invention.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1-4, a kind of realization utilizes coniform seal configuration to realize the method for tight fit soldering, and concrete steps are as follows:
1) coniform seal configuration is replaced with by by the cylindric seal configuration of brazing filler metal workpiece 1;
2), during soldering, by brazing filler metal workpiece 1 contact surface after cleaning, will assemble with joint form, solder 2 be placed on around joint clearance 3 or directly put into joint clearance 3;
3) when being heated to together with solder 2 by brazing filler metal workpiece 1 after than solder 2 fusion temperature height 1-5 DEG C, solder 2 melts and infiltrates by the surface of brazing filler metal workpiece 1;
4) liquid solder 2 is by capillarity, and will sprawl along bonding gap 3 flowing, thus be ensured the realization of capillarity by brazing filler metal workpiece 1, the gap of soldering bonding gap 3 is 0.05-0.1mm.
The present invention is by relying on conical part self-locating function under gravity, effectively ensure that the fit clearance of the 0.05mm of soldering bonding gap 3, define reliable capillary channel, two parts of such soldering coordinate closely better as anode component heat-sinking capability, decrease the amount of solder 2 simultaneously, decrease the impact of silver solder saturated vapor pressure on vacuum performance, by carrying out repetition test to the amount of solder 2 and the technique of soldering, the amount of best solder 2 and best soldering warm area are grasped, make the amount of solder 2 in weld seam very reasonable, the accumulation of solder 2 is not formed in brazing filler metal workpiece 1.
By carrying out taper design to the structure of soldered component, soldering processes being tested accordingly simultaneously, achieving the best combination of the amount of firmly welding and solder 2.Carry out Linear cut analysis by weldment, solder 2 is fully filled with capillary gap, but does not form the accumulation of solder 2 at soldering bonding gap 3, very clean, and the weldment performance that soldering is good is solid and reliable.Assembly can bear thermal shock repeatedly at 800 DEG C.
The present invention is by changing the planform of part, make to have been changed into coniform seal configuration by the cylindric seal configuration of brazing filler metal workpiece 1, by conical part self-locating function under gravity, ensure that the formation of capillary gap effectively, reliably, make the wandering even, stable, controlled of solder 2.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (2)
1. realization utilizes coniform seal configuration to realize a method for tight fit soldering, and it is characterized in that, concrete steps are as follows:
1) coniform seal configuration is replaced with by by the cylindric seal configuration of brazing filler metal workpiece (1);
2), during soldering, by brazing filler metal workpiece (1) contact surface after cleaning, will assemble with joint form, solder (2) is placed on around joint clearance (3) or directly puts into joint clearance (3);
3) when being heated to together with solder (2) after than solder (2) fusion temperature height 1-5 DEG C by brazing filler metal workpiece (1), solder (2) melts and infiltrates by the surface of brazing filler metal workpiece (1);
4) liquid solder (2) is by capillarity, and will sprawl along bonding gap (3) flowing, thus be ensured the realization of capillarity by brazing filler metal workpiece (1), the gap of soldering bonding gap (3) is 0.05-0.1mm.
2. realization according to claim 1 utilizes coniform seal configuration to realize the method for tight fit soldering, it is characterized in that, in described step 4), the gap of soldering bonding gap (3) is 0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510585349.0A CN105033392A (en) | 2015-09-16 | 2015-09-16 | Method of achieving close fit brazing via conical sleeve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510585349.0A CN105033392A (en) | 2015-09-16 | 2015-09-16 | Method of achieving close fit brazing via conical sleeve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105033392A true CN105033392A (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510585349.0A Pending CN105033392A (en) | 2015-09-16 | 2015-09-16 | Method of achieving close fit brazing via conical sleeve sealing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105033392A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749754A (en) * | 2022-05-31 | 2022-07-15 | 核工业西南物理研究院 | Vacuum brazing evaluation test piece for vacuum brazing process evaluation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007162735A (en) * | 2005-12-09 | 2007-06-28 | Saginomiya Seisakusho Inc | Valve device |
| CN102672326A (en) * | 2011-03-15 | 2012-09-19 | 左铁军 | Method for manufacturing copper-aluminum welded joint of capillary tube and copper end sleeved aluminum capillary tube |
| CN103367663A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Seal assembly of battery, preparation method thereof and lithium ion battery |
| WO2013186400A2 (en) * | 2012-06-15 | 2013-12-19 | Shell Internationale Research Maatschappij B.V. | Method and connector assembly for connecting tubular members |
| WO2015019319A1 (en) * | 2013-08-07 | 2015-02-12 | Heraeus Precious Metals Gmbh & Co. Kg | Method of forming feedthrough with integrated brazeless ferrule |
-
2015
- 2015-09-16 CN CN201510585349.0A patent/CN105033392A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007162735A (en) * | 2005-12-09 | 2007-06-28 | Saginomiya Seisakusho Inc | Valve device |
| CN102672326A (en) * | 2011-03-15 | 2012-09-19 | 左铁军 | Method for manufacturing copper-aluminum welded joint of capillary tube and copper end sleeved aluminum capillary tube |
| CN103367663A (en) * | 2012-03-29 | 2013-10-23 | 比亚迪股份有限公司 | Seal assembly of battery, preparation method thereof and lithium ion battery |
| WO2013186400A2 (en) * | 2012-06-15 | 2013-12-19 | Shell Internationale Research Maatschappij B.V. | Method and connector assembly for connecting tubular members |
| WO2015019319A1 (en) * | 2013-08-07 | 2015-02-12 | Heraeus Precious Metals Gmbh & Co. Kg | Method of forming feedthrough with integrated brazeless ferrule |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749754A (en) * | 2022-05-31 | 2022-07-15 | 核工业西南物理研究院 | Vacuum brazing evaluation test piece for vacuum brazing process evaluation |
| CN114749754B (en) * | 2022-05-31 | 2023-07-25 | 核工业西南物理研究院 | Vacuum brazing evaluation test piece for evaluating vacuum brazing process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |