CN104057170A - Carbon structure surface metallization method - Google Patents
Carbon structure surface metallization method Download PDFInfo
- Publication number
- CN104057170A CN104057170A CN201310091496.3A CN201310091496A CN104057170A CN 104057170 A CN104057170 A CN 104057170A CN 201310091496 A CN201310091496 A CN 201310091496A CN 104057170 A CN104057170 A CN 104057170A
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- CN
- China
- Prior art keywords
- carbon structure
- hard solder
- solder
- hard
- carbon
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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
Abstract
The invention provides a carbon structure surface metallization method. The method comprises the steps as follows: hard solder is arranged on the surface of a carbon structure, and hard soldering is performed on the hard solder and the carbon structure. According to the method, after hard soldering is performed on the hard solder and the carbon structure, active elements such as titanium, chromium, silicon and the like in the hard solder can chemically react with carbon elements in the carbon structure, so that the bonding strength of the hard solder and the carbon structure is enhanced.
Description
Technical field
The present invention relates to the method for welding method carbon structure surface metalation.
Background technology
In prior art, form metal level normally by realizing at graphite flake electroplating surface or nickel of ion beam sputtering deposition or copper metal layer at graphite surface.But because between above-mentioned metal level and graphite flake being realizes combination by physics mode instead of by the mode of chemical metallurgy, connection is between the two also insecure, often occurs the phenomenon that metal level comes off.
Summary of the invention
In view of this, the invention provides the method for the carbon structure surface metalations such as a kind of graphite being connected firmly.
A method for carbon structure surface metalation, comprises the following steps: hard solder is arranged to the surperficial of carbon structure and this hard solder and this carbon structure are carried out to solder brazing.
Hard solder of the present invention and this carbon structure carry out after solder brazing, in hard solder as titanium, chromium, zirconium, silicon isoreactivity element can with the meeting generation chemical reaction of carbon in this carbon structure, thereby strengthen the bond strength of hard solder and carbon structure.
In order further to understand feature of the present invention and technology contents, refer to following about detailed description of the present invention and accompanying drawing, but institute's accompanying drawing only provide with reference to and explanation use, be not used for the present invention to be limited.
Brief description of the drawings
Fig. 1 is the flow chart of the method for the carbon structure surface metalation of preferred embodiments of the present invention.
Fig. 2 is the broken section structural representation of the assembly of the carbon structure made according to the method for Fig. 1 sheet metal surperficial with it, it should be noted that the proportionate relationship of in fact each layer may not be as shown in the figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is described in detail, will make technical scheme of the present invention and other beneficial effects apparent.Accompanying drawing only provides reference and explanation use, is not used for the present invention to be limited.The size showing in accompanying drawing is only used to be convenient to clear description, and does not limit proportionate relationship.
The method of the carbon structure surface metalation of first embodiment of the invention comprises the following steps:
Step 1: by silver-bearing copper titanium (Ag, Cu, Ti) hard solder, such as 69% silver, 27% copper, the silver-bearing copper titanium hard solder of 4% titanium, prints the surface to this carbon structure by the mode of half tone silk-screen, the polyester silk screen of preferred thickness below 0.5 millimeter in half tone silk-screen printing process, to make silk screen have preferably elasticity in the process of printing solder.Above-mentioned carbon structure can be the mixture of graphite, carbon and powdered graphite etc.
Step 2: the above-mentioned carbon structure that is provided with silver-bearing copper titanium hard solder is put into vacuum 1.0 × 10
-1handkerchief to 4.0 × 10
-2handkerchief and temperature are incubated 13 to 17 minutes in the vacuum drying oven of 800 DEG C to 900 DEG C, then cooling, so that the solder brazing of silver-bearing copper titanium hard solder is to carbon structure.Preferably, above-mentioned vacuum is 6.0 × 10
-2handkerchief, said temperature is 850 DEG C, above-mentioned temperature retention time is 15 minutes.Put into after vacuum drying oven at the above-mentioned carbon structure that is provided with silver-bearing copper titanium hard solder, preferably, vacuum drying oven is the speed rising to 850 DEG C with 10 DEG C per minute from room temperature, and then is incubated 15 minutes in this environment of 850 DEG C.
The method of the carbon structure surface metalation of second embodiment of the invention comprises the following steps:
Step 1: by the BNi of AWS (American Welding Society, AWS) regulation
2type hard solder is evenly injected into the surface of this carbon structure by the mode of spraying.Above-mentioned carbon structure can be the mixture of graphite, carbon and powdered graphite etc.
Step 2: by the above-mentioned BNi that is provided with
2the carbon structure of hard solder is put into vacuum 2.0 × 10
-2handkerchief to 8 × 10
-3handkerchief and temperature are to be incubated 25 to 35 minutes in the vacuum drying oven of 1050 DEG C to 1150 DEG C, then cooling, so that BNi
2hard solder solder brazing is to carbon structure.Preferably, above-mentioned vacuum is 1.0 × 10
-2handkerchief, said temperature is 1100 DEG C, above-mentioned temperature retention time is 30 minutes.At the above-mentioned BNi that is provided with
2the carbon structure of hard solder is put into after vacuum drying oven, and preferably, vacuum drying oven is the speed rising to 1100 DEG C with 15 DEG C per minute from room temperature, and then is incubated 30 minutes in this environment of 1100 DEG C.
The method of the carbon structure surface metalation of third embodiment of the invention comprises the following steps:
Step 1: by titanium zirconium copper nickel (Ti, Zr, Cu, Ni) hard solder, such as containing 40% titanium, 20% zirconium, 20% copper, the titanium zirconium copper nickel hard solder of 20% nickel, is evenly sprinkled upon the surface of this carbon structure.This carbon structure can be the graphite flake of ring-type.
Step 2: the above-mentioned carbon structure that is provided with titanium zirconium copper nickel hard solder is put into vacuum 1.0 × 10
-2handkerchief to 3 × 10
-3handkerchief and temperature are to be incubated 20 to 30 minutes in the vacuum drying oven of 900 DEG C to 1000 DEG C, then cooling, so that the solder brazing of titanium zirconium copper nickel solder is to carbon structure.Preferably, above-mentioned vacuum is 8 × 10
-3handkerchief, said temperature is 950 DEG C, above-mentioned temperature retention time is 20 minutes.Put into after vacuum drying oven at the above-mentioned carbon structure that is provided with titanium zirconium copper nickel solder, preferably, vacuum drying oven is the speed rising to 950 DEG C with 15 DEG C per minute from room temperature, and then is incubated 20 minutes in this environment of 950 DEG C.
The method of the carbon structure surface metalation of four embodiment of the invention comprises the following steps:
Step 1: the BNi that AWS is specified
5hard solder prints the surface to this carbon structure by the mode of half tone silk-screen, and the polyester silk screen of preferred thickness below 0.5 millimeter in half tone silk-screen printing process, to make silk screen have preferably elasticity in the process of printing solder.
Step 2: by the above-mentioned BNi that is provided with
5the carbon structure of hard solder is put into vacuum 3.0 × 10
-3handkerchief to 1.0 × 10
-3handkerchief and temperature are to be incubated 15 to 20 minutes in the vacuum drying oven of 1100 DEG C to 1200 DEG C, then cooling, so that BNi
5hard solder solder brazing is to carbon structure.Preferably, above-mentioned vacuum is 1 × 10
-3handkerchief, said temperature is 1200 DEG C, above-mentioned temperature retention time is 20 minutes.Put into after vacuum drying oven at the above-mentioned carbon structure that is provided with silver-bearing copper titanium hard solder, preferably, vacuum drying oven is the speed rising to 1200 DEG C with 20 DEG C per minute from room temperature, and then is incubated 20 minutes in this environment of 1200 DEG C.
The method of the carbon structure surface metalation of fifth embodiment of the invention comprises the following steps:
Step 1: by BNi
7hard solder prints the surface to this carbon structure by the mode of half tone silk-screen, and the polyester silk screen of preferred thickness below 0.5 millimeter in half tone silk-screen printing process, to make silk screen have preferably elasticity in the process of printing solder.
Step 2: by the above-mentioned BNi that is provided with
7the carbon structure of hard solder is put into ammonia and is decomposed meshbeltfurnace (Mesh Belt Furnace), and belt speed is set 0.1-0.8m/s, and the highest brazing temperature is set as 800 DEG C to 1100 DEG C, then cooling, so that BNi
7hard solder solder brazing is to carbon structure.Preferably, above-mentioned belt speed is set 0.4m/s, and the highest brazing temperature is set as 1000 DEG C.In fact, it is exactly an atmosphere protection stove that above-mentioned ammonia decomposes meshbeltfurnace, and gas wherein can also be nitrogen, hydrogen, argon gas, helium, carbon monoxide, carbon dioxide or its mist etc., the corresponding different temperatures of gas with various.Therefore temperature range is not limited to above-mentioned scope.
Be appreciated that and hard solder arranged to before the surface of graphite flake, also can comprise step: the surface of polishing graphite flake for contacting with this hard solder; Graphite flake is placed in the alcohol that is provided with ultrasonic wave generator and is cleaned; Graphite flake is immersed in acetone; And graphite flake is taken out and dried.By above-mentioned steps, can effectively clean graphite flake.
Incorporated by reference to Fig. 1, can find out by above multiple embodiments, in fact the welding method of carbon structure of the present invention and sheet metal comprises following two steps:
S10: hard solder is arranged to the surface to carbon structure; And
S20: this hard solder and this carbon structure are carried out to solder brazing.
Wherein, in step S20, hard solder and carbon structure are placed on vacuum 1.0 × 10
-1handkerchief is above (is that vacuum is more than or equal to 1.0 × 10
-1handkerchief, such as 1.0 × 10
-3handkerchief), temperature is within 10 to 30 minutes, to carry out solder brazing in the environment of 800 DEG C above (being more than or equal to 800 DEG C).Also be appreciated that solder brazing duration also can be not limited to above-mentioned time aziniuth, such as, in the above-described 3rd embodiment, the time also can more than 30 minutes.
Incorporated by reference to Fig. 2, in above-mentioned welding method, hard solder and this carbon structure 10 carry out after solder brazing, in hard solder as titanium, chromium, zirconium, silicon isoreactivity element can with this carbon structure in carbon generation chemical reaction.So, braze layer 20 that hard solder forms after the surface solder brazing of this carbon structure is actual has comprised two layers, one is the conversion zone 22 being formed by this hard solder and this carbon structure 10 chemical reactions near this carbon structure 10, and another is to react away from the component by this hard solder self of this carbon structure 10 binder course 24 forming.Due to metallurgical reaction having occurred, this conversion zone 22 with this carbon structure 10 height combination time also with these binder course 24 height combinations.Therefore the binder course 24, being mainly made up of metallic element is bonded to this carbon structure 10 securely.Be, hard solder solder brazing has formed a firmly metal level on these carbon structure 10 surfaces to this carbon structure 10, thereby is conducive to follow-up and combination other metal material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. the method for carbon structure surface metalation, comprises the following steps:
Hard solder is arranged to the surface to carbon structure;
This hard solder and this carbon structure are carried out to solder brazing.
2. the method for claim 1, is characterized in that, selecting graphite is this carbon structure.
3. method as claimed in claim 1 or 2, is characterized in that, hard solder being arranged to before the surface of carbon structure, also comprises step: clean the surface that this carbon structure contacts with this hard solder.
4. method as claimed in claim 2, is characterized in that, hard solder is being arranged to before the surface of carbon structure, also comprises step:
The surface of polishing graphite flake for contacting with this hard solder;
Graphite flake is placed in the alcohol that is provided with ultrasonic wave generator and is cleaned;
Graphite flake is immersed in acetone; And
Graphite flake is taken out and dried.
5. the method for claim 1, is characterized in that, hard solder is arranged to the mode comprising to the surface of carbon structure by half tone silk-screen this hard solder is arranged to the surface to this carbon structure.
6. method as claimed in claim 5, is characterized in that, hard solder is arranged and comprises employing thickness this half tone silk-screen of polyester silk screen below 0.5 millimeter to the surface of carbon structure.
7. the method for claim 1, is characterized in that, hard solder is arranged and comprises that to the surface of carbon structure this hard solder is arranged the surface to this carbon structure by the mode by spraying or spraying.
8. the method for claim 1, is characterized in that, this hard solder and this carbon structure is carried out to solder brazing and comprise this hard solder and this carbon structure are placed on to vacuum 1.0 × 10
-1more than handkerchief, temperature is to carry out solder brazing in 800 DEG C of above environment.
9. method as claimed in claim 8, is characterized in that, this hard solder and this carbon structure is carried out to solder brazing and comprise this hard solder and the residing environment of this carbon structure are risen to required temperature with 10 to 20 degree per minute.
10. the method for claim 1, is characterized in that, this hard solder and this carbon structure is carried out to solder brazing and comprise that it is to carry out solder brazing in 800 DEG C of above atmosphere protection stoves that this hard solder and this carbon structure are placed on to temperature.
11. methods as claimed in claim 10, is characterized in that, this atmosphere protection stove comprises nitrogen, hydrogen, argon gas, helium, carbon monoxide, carbon dioxide, decomposed ammonia or its mist.
12. the method for claim 1, it is characterized in that, this hard solder and this carbon structure are carried out in the step of solder brazing, this hard solder forms the conversion zone of close this carbon structure and the binder course away from this carbon structure, this conversion zone is formed by this hard solder and this carbon structure chemical reaction, and this binder course is formed by the component reaction of this hard solder self.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091496.3A CN104057170A (en) | 2013-03-20 | 2013-03-20 | Carbon structure surface metallization method |
| DE102014103722.7A DE102014103722A1 (en) | 2013-03-20 | 2014-03-19 | A method of attaching a metal sheet to a graphite structure by means of a brazing and soldering method |
| KR1020140032663A KR20140115276A (en) | 2013-03-20 | 2014-03-20 | Method for affixing a metal sheet to a graphite structure using a brazing and soldering process |
| JP2014058509A JP2014224030A (en) | 2013-03-20 | 2014-03-20 | Method for applying metallic sheet to graphite structure using brazing and soldering step |
| US14/221,156 US20140287258A1 (en) | 2013-03-20 | 2014-03-20 | Method for affixing a metal sheet to a carbon structure using a brazing and soldering process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091496.3A CN104057170A (en) | 2013-03-20 | 2013-03-20 | Carbon structure surface metallization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104057170A true CN104057170A (en) | 2014-09-24 |
Family
ID=51545259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310091496.3A Pending CN104057170A (en) | 2013-03-20 | 2013-03-20 | Carbon structure surface metallization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104057170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161156A (en) * | 2017-11-23 | 2018-06-15 | 安泰天龙钨钼科技有限公司 | A kind of vacuum brazing method of molybdenum alloy and graphite |
| CN109530892A (en) * | 2018-12-28 | 2019-03-29 | 渤海造船厂集团有限公司 | Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas |
| CN109913696A (en) * | 2019-04-30 | 2019-06-21 | 华侨大学 | A kind of method of graphite surface metallization |
| CN115043662A (en) * | 2022-05-16 | 2022-09-13 | 河北工业大学 | Preparation method of high-thermal-conductivity graphite thick plate based on welding process |
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| US20080131724A1 (en) * | 2006-12-05 | 2008-06-05 | Henry Shiu-Hung Chu | Ceramic armor, methods of joining a carbide with a metal-comprising piece, and methods of metallizing carbide-comprising surfaces |
| CN101162824A (en) * | 2007-11-20 | 2008-04-16 | 陈建甫 | Brazing type manufacturing method of flat carbon commutator and products produced thereby |
| US20130001275A1 (en) * | 2011-06-30 | 2013-01-03 | Thales | Process for Manufacturing a Device Comprising Brazes Produced from Metal Oxalate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161156A (en) * | 2017-11-23 | 2018-06-15 | 安泰天龙钨钼科技有限公司 | A kind of vacuum brazing method of molybdenum alloy and graphite |
| CN108161156B (en) * | 2017-11-23 | 2021-01-01 | 安泰天龙钨钼科技有限公司 | Vacuum brazing method for molybdenum alloy and graphite |
| CN109530892A (en) * | 2018-12-28 | 2019-03-29 | 渤海造船厂集团有限公司 | Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas |
| CN109913696A (en) * | 2019-04-30 | 2019-06-21 | 华侨大学 | A kind of method of graphite surface metallization |
| CN115043662A (en) * | 2022-05-16 | 2022-09-13 | 河北工业大学 | Preparation method of high-thermal-conductivity graphite thick plate based on welding process |
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Application publication date: 20140924 |