CN110000442A - A kind of method of the silver-plated welding substitution silver-based solder soldering of copper part - Google Patents
A kind of method of the silver-plated welding substitution silver-based solder soldering of copper part Download PDFInfo
- Publication number
- CN110000442A CN110000442A CN201910426516.5A CN201910426516A CN110000442A CN 110000442 A CN110000442 A CN 110000442A CN 201910426516 A CN201910426516 A CN 201910426516A CN 110000442 A CN110000442 A CN 110000442A
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- CN
- China
- Prior art keywords
- silver
- plated
- copper part
- welding
- copper
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- 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.)
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3006—Ag as the principal constituent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of methods of the silver-plated welding substitution silver-based solder soldering of copper part, include the following steps, first, get out silverer, required soldering part, vacuum drying oven, fixing tool, solder and detection instrument, then it is carried out according to normal silver plating process to copper part by silverer silver-plated, then the copper part with silver layer is assembled, directly into furnace after assembly in place, and then carry out a variety of welded experiments, ensure the scope of application, weld seam and air-leakage test after being welded simultaneously, it finally summarizes and records test method, it is promoted and applied, using the technology that copper part is silver-plated, so that position while welding does not have to place silver-based solder, reduce the assembly difficulty and workload of worker, improve fastness and air-tightness, and this method strong applicability, it can solve the vacuum electron devices such as current vacuum interrupter silver The problems such as parent metal forming cost is high, solder is low, and assembly difficulty is big and cleaning degree is high.
Description
Technical field
The present invention relates to the sealing-in field of electron tube manufacture, specifically a kind of silver-plated welding substitution silver-based weldering of copper part
Expect the method for soldering.
Background technique
Pricker is carried out using fine silver solder or silver-based solder at present in the process for sealing of the vacuum electron devices such as vacuum interrupter
Weldering；For 960.5 DEG C of flow point of fine silver solder, 850 DEG C of the flow point of 50 solder of silver-bearing copper, 815 DEG C of the flow point of 2 solder of silver-bearing copper nickel.One
As in the case of, vacuum electron device manufacturer using silver-based solder soldering processes execute 810 DEG C -850 DEG C heat preservation a few minutes
Technological specification realize air-tightness welding；980 DEG C -1000 DEG C, which are executed, using the soldering processes of fine silver solder keeps the temperature a few minutes
Technological specification realizes air-tightness welding.In brazing process, solder fusing and flowing infiltration are soaked by weldering metal, later
With the reduction of temperature, solder solidification is in metal surface and the solder that solidifies between two metal surfaces welded two
Metal surface；Secured bottom sealing welds together.Currently, the drawbacks of existing silver-based solder method for welding etc. exists: 1.
It is voluntarily processed into required shape after the general manufacturing firm's buying solder blank of the production of solder structure, specification is various, solder molding
The tooling needed is corresponding more, and the cost that solder is formed and itself used is high；2. the utilization rate of solder blank is low, silk
It cannot be placed directly in again and the contact surface welded is needed to cause excessive use, band leftover pieces waste in blanking process is tight
Weight；3. needing to clean after self-control solder molding, Partial key solder needs to carry out the cleaning of multiple different process, relatively complicated；
4. silver-based shaped solder is in assembly as on a kind of sealing surface that part needs assembly crewman to be assembled to product and checking peace
It is attached to position, assembly difficulty is relatively large.Therefore, those skilled in the art provide a kind of theme, to solve above-mentioned background technique
The problem of middle proposition.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of the silver-plated welding substitution silver-based solder soldering of copper part, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of method of the silver-plated welding substitution silver-based solder soldering of copper part, method includes the following steps:
1) silverer, required soldering part, vacuum drying oven, fixing tool, solder and detection instrument are got out；
2) it is carried out according to normal silver plating process to copper part by silverer silver-plated；
3) the copper part with silver layer is assembled, directly into furnace after assembly in place；
4) a variety of welded experiments are carried out, it is ensured that the scope of application；
5) weld seam and air-leakage test after being welded；
6) it summarizes and records test method, promoted and applied.
As a further solution of the present invention: in the step 1), by silverer, vacuum drying oven, fixing tool and detection
Tool etc. carries out installation and debugging, and detection instrument includes air tightness detection equipment and weld seam observation device.
As further scheme of the invention: in the step 2), being fixed copper part using fixing tool, while copper
It is the weld seam region for needing to weld that part, which carries out silver-plated region, and silver thickness is controlled in 0.003mm-0.005mm
Between.
As further scheme of the invention: in the step 3), when the copper part with silver layer is assembled, weldering
Position is stitched not have to place silver-based solder, by means of welding (830 DEG C) technological specification of silver-based solder, under vacuum furnace high-temperature,
Silver coating can soak copper piece surface, stainless steel (containing pure iron) piece surface, the porcelain piece that metallizes nickel coating, realize silver-plated copper
Part reliably welds together with not silver-plated copper part, stainless steel (containing pure iron) part, nickel plating part (metallization porcelain piece).
As the present invention further scheme: in the step 4), specific welding structure mainly has following three kinds, the
One, it is welded to form by the first bronze medal part, silver coating, the second bronze medal part, is to the first silver-plated shape of bronze medal part welding surface specifically
It is welded at silver coating and the second not silver-plated bronze medal part；Second, by copper part, silver coating stainless steel (containing pure iron) part
It is welded to form, specifically, is welded to the silver-plated formation silver coating of copper part welding surface and stainless steel (containing pure iron) part
's；Third, by the metallization porcelain piece of the first nickel plating, the first silver coating, copper part, the second silver coating, the second nickel plating metallization
Porcelain piece is welded to form, and is to copper part welding surface the first silver coating of silver-plated formation and the second silver coating respectively with specifically
What the metallization porcelain piece of one nickel plating and the metallization porcelain piece of the second nickel plating were welded.
Compared with prior art, the beneficial effects of the present invention are:
Using the technology that copper part is silver-plated, silver is uniformly plated in the weld seam location that copper part needs to weld before assembly
On domain, when so that the copper part with silver layer being assembled, position while welding does not have to place silver-based solder, reduces the assembly of worker
Difficulty and workload, improve fastness and air-tightness, reach the requirement of vacuum electron device air-tightness (detection), and this method
Strong applicability, can solve that the vacuum electron devices silver-based solder such as current vacuum interrupter forming cost is high, solder is low, dress
It is big and the problems such as cleaning degree is high with difficulty.
Detailed description of the invention
Fig. 1 is the welding structure figure between the copper part and copper part of the invention patent.
Fig. 2 is the welding structure figure between the copper part of the invention patent and stainless steel (containing pure iron) part.
Fig. 3 is the welding structure figure between the copper part of the invention patent and nickel plating part (metallization porcelain piece).
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Embodiment 1: a kind of method of the silver-plated welding substitution silver-based solder soldering of copper part, method includes the following steps:
1) silverer, required soldering part, vacuum drying oven, fixing tool, solder and detection instrument are got out；
2) it is carried out according to normal silver plating process to copper part by silverer silver-plated；
3) the copper part with silver layer is assembled, directly into furnace after assembly in place；
4) a variety of welded experiments are carried out, it is ensured that the scope of application；
5) weld seam and air-leakage test after being welded；
6) it summarizes and records test method, promoted and applied.
In the step 1), silverer, vacuum drying oven, fixing tool and detection instrument etc. are subjected to installation and debugging, detection
Tool includes air tightness detection equipment and weld seam observation device.
In the step 2), copper part is fixed using fixing tool, while it is needs that copper part, which carries out silver-plated region,
The weld seam region of welding, and by silver thickness control between 0.003mm-0.005mm.
In the step 3), when the copper part with silver layer is assembled, position while welding does not have to place silver-based solder, borrows
Welding (830 DEG C) technological specification for helping silver-based solder, under vacuum furnace high-temperature, silver coating can soak copper piece surface,
The nickel coating of stainless steel (contain pure iron) piece surface, the porcelain piece that metallizes realizes silver-plated copper part and not silver-plated copper part, stainless
Steel (containing pure iron) part, nickel plating part (metallization porcelain piece) reliably weld together.
In the step 4), specific welding structure mainly has following three kinds, and first, by the first bronze medal part 11, silver coating
12, the second bronze medal part 13 is welded to form, as shown in Figure 1, specifically, Fig. 1 is to give 11 welding surface of the first bronze medal part silver-plated formation
What silver coating 12 and the second not silver-plated bronze medal part 13 were welded；Second, by copper part 21,22 stainless steel of silver coating (containing pure
Iron) part 23 is welded to form, as shown in Fig. 2, specifically, Fig. 2 be to the silver-plated formation silver coating 22 of 21 welding surface of copper part with
Stainless steel (containing pure iron), part 23 was welded；Third, by the metallization porcelain piece 31 of the first nickel plating, the first silver coating 32, copper
Part 33, the second silver coating 34, the second nickel plating metallization porcelain piece 35 be welded to form, as shown in figure 3, specifically, Fig. 3 be to
33 welding surface of copper part the first silver coating 32 of silver-plated formation and the second silver coating 34 respectively with the metallization porcelain piece 31 of the first nickel plating
It is welded with the metallization porcelain piece 35 of the second nickel plating.
The working principle of the invention is:
The invention proposes a kind of methods of the silver-plated welding substitution silver-based solder soldering of copper part, in work, fill in part
It is uniformly plated on the weld seam region that copper part needs to weld with preceding by silver-colored, and silver thickness control is in 0.003mm-
Between 0.005mm, then copper part is fixed using fixing tool, according to normal silver plating process, to the commissure of copper part
Carry out silver-plated, when by being assembled with the copper part of silver layer, position while welding does not have to place silver-based solder, in vacuum electron device
When manufacture assembly, metal parts needed for operator only need to assemble vacuum electron device, on its copper part sealing surface
With silver layer, the assembly difficulty and workload of worker are reduced, the cost of silver-based solder mechanical processing and cleaning is eliminated, is assembled to
Directly into furnace behind position, under vacuum furnace high-temperature, silver coating can soak copper piece surface, stainless steel (containing pure iron) parts list
Face, the porcelain piece that metallizes nickel coating, realize silver-plated copper part and not silver-plated copper part, stainless steel (containing pure iron) part, nickel plating
Part (metallization porcelain piece) reliably welds together, and improves fastness and air-tightness, reaches (the inspection of vacuum electron device air-tightness
Survey) requirement, and this method strong applicability can solve the vacuum electron devices silver-based solder forming cost such as current vacuum interrupter
The problems such as height, solder are low, and assembly difficulty is big and cleaning degree is high.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (5)
1. a kind of method of the silver-plated welding substitution silver-based solder soldering of copper part, which comprises the following steps:
1) silverer, required soldering part, vacuum drying oven, fixing tool, solder and detection instrument are got out；
2) it is carried out according to normal silver plating process to copper part by silverer silver-plated；
3) the copper part with silver layer is assembled, directly into furnace after assembly in place；
4) a variety of welded experiments are carried out, it is ensured that the scope of application；
5) weld seam and air-leakage test after being welded；
6) it summarizes and records test method, promoted and applied.
2. a kind of method of the silver-plated welding substitution silver-based solder soldering of copper part according to claim 1, which is characterized in that
In the step 1), silverer, vacuum drying oven, fixing tool and detection instrument etc. are subjected to installation and debugging, detection instrument includes
Air tightness detection equipment and weld seam observation device.
3. a kind of method of the silver-plated welding substitution silver-based solder soldering of copper part according to claim 1, which is characterized in that
In the step 2), copper part is fixed using fixing tool, while it is the weldering for needing to weld that copper part, which carries out silver-plated region,
Region is stitched, and by silver thickness control between 0.003mm-0.005mm.
4. a kind of method of the silver-plated welding substitution silver-based solder soldering of copper part according to claim 1, which is characterized in that
In the step 3), when the copper part with silver layer is assembled, position while welding does not have to place silver-based solder, by means of silver-based
Welding (830 DEG C) technological specification of solder, under vacuum furnace high-temperature, silver coating can soak copper piece surface, stainless steel (contains
Pure iron) piece surface, the porcelain piece that metallizes nickel coating, realize that silver-plated copper part and not silver-plated copper part, stainless steel (contain pure
Iron) part, nickel plating part (metallization porcelain piece) reliably weld together.
5. a kind of method of the silver-plated welding substitution silver-based solder soldering of copper part according to claim 1, which is characterized in that
In the step 4), specific welding structure mainly has following three kinds, and first, by the first bronze medal part (11), silver coating (12),
Two bronze medal parts (13) are welded to form, specifically, be to the first silver-plated formation silver coating (12) of bronze medal part (11) welding surface with not
What the second silver-plated bronze medal part (13) was welded；Second, by copper part (21), silver coating (22) stainless steel (containing pure iron) part
(23) it is welded to form, is to the silver-plated formation silver coating (22) of copper part (21) welding surface and stainless steel specifically (containing pure iron)
Part (23) is welded；Third, by the metallization porcelain piece (31) of the first nickel plating, the first silver coating (32), copper part (33),
Second silver coating (34), the second nickel plating metallization porcelain piece (35) be welded to form, be to give copper part (33) welding surface specifically
Silver-plated formation the first silver coating (32) and the second silver coating (34) are plated with the metallization porcelain piece (31) of the first nickel plating and second respectively
What the metallization porcelain piece (35) of nickel was welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910426516.5A CN110000442A (en) | 2019-05-21 | 2019-05-21 | A kind of method of the silver-plated welding substitution silver-based solder soldering of copper part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910426516.5A CN110000442A (en) | 2019-05-21 | 2019-05-21 | A kind of method of the silver-plated welding substitution silver-based solder soldering of copper part |
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| Publication Number | Publication Date |
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| CN110000442A true CN110000442A (en) | 2019-07-12 |
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| CN201910426516.5A Pending CN110000442A (en) | 2019-05-21 | 2019-05-21 | A kind of method of the silver-plated welding substitution silver-based solder soldering of copper part |
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Citations (6)
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|---|---|---|---|---|
| CN1031038A (en) * | 1987-08-05 | 1989-02-15 | 西安石油勘探仪器总厂 | The via hydrogen-protected plating diffusion fine welding method of pure iron and brass |
| CN101077542A (en) * | 2006-05-24 | 2007-11-28 | 陈晴祺 | Process in joining for golf club head |
| CN101234443A (en) * | 2007-01-30 | 2008-08-06 | 明安国际企业股份有限公司 | Method for joining golf club head |
| CN101585103A (en) * | 2009-06-23 | 2009-11-25 | 中国电子科技集团公司第十四研究所 | Ag-Cu-Zn liquid phase diffusion connection method for H62 copper alloy device |
| CN102658409A (en) * | 2012-05-31 | 2012-09-12 | 中国电子科技集团公司第四十三研究所 | Method for welding titanium alloy ring frame for electronic packaging shell |
| US20140042212A1 (en) * | 2012-08-09 | 2014-02-13 | Ormet Circuits, Inc. | Electrically conductive compositions comprising non-eutectic solder alloys |
-
2019
- 2019-05-21 CN CN201910426516.5A patent/CN110000442A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031038A (en) * | 1987-08-05 | 1989-02-15 | 西安石油勘探仪器总厂 | The via hydrogen-protected plating diffusion fine welding method of pure iron and brass |
| CN101077542A (en) * | 2006-05-24 | 2007-11-28 | 陈晴祺 | Process in joining for golf club head |
| CN101234443A (en) * | 2007-01-30 | 2008-08-06 | 明安国际企业股份有限公司 | Method for joining golf club head |
| CN101585103A (en) * | 2009-06-23 | 2009-11-25 | 中国电子科技集团公司第十四研究所 | Ag-Cu-Zn liquid phase diffusion connection method for H62 copper alloy device |
| CN102658409A (en) * | 2012-05-31 | 2012-09-12 | 中国电子科技集团公司第四十三研究所 | Method for welding titanium alloy ring frame for electronic packaging shell |
| US20140042212A1 (en) * | 2012-08-09 | 2014-02-13 | Ormet Circuits, Inc. | Electrically conductive compositions comprising non-eutectic solder alloys |
Non-Patent Citations (1)
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Application publication date: 20190712 |