CN102303197A - Boron-containing vanadium-base alloy brazing material - Google Patents
Boron-containing vanadium-base alloy brazing material Download PDFInfo
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- CN102303197A CN102303197A CN201110231558A CN201110231558A CN102303197A CN 102303197 A CN102303197 A CN 102303197A CN 201110231558 A CN201110231558 A CN 201110231558A CN 201110231558 A CN201110231558 A CN 201110231558A CN 102303197 A CN102303197 A CN 102303197A
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- braze
- vanadium
- base alloy
- boracic
- boron
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Abstract
The invention discloses a boron-containing vanadium-base alloy brazing material which comprises the raw materials in percent by weight: 0.2-6.5 percent of boron and the balance of vanadium and inevitable impurities, wherein the weight percent of Zn, Cd and Pb in the impurities are not more than 0.001. The boron-containing vanadium-base alloy soldering material has low cost and low steam pressure, can be used in a high-reliability cathode environment of a vacuum electronic component, has a melting temperature of 1735-1900 DEG C and a brazing temperature of 1760-1980 DEG C, is suitable for brazing refractory metals W and Mo and alloys of W and Mo under an Ar gas atmosphere or a vacuum state, and has better wettability and spreadability, good flowability, high jointing capacity and good weld seam high-temperature strength after being brazed and connected with the refractory metals W and Mo. The steam pressure of the brazing material is lower than 1*10<-5>Pa when a cathode weld assembly is in a vacuum working condition of 1000-1200 DEG C.
Description
Technical field
The invention belongs to alloy brazed material technical field, be specifically related to a kind of vanadium-base alloy braze of boracic.
Background technology
At present, can soldering nearly tens kinds of the braze of W, Mo, Cu base, scolders such as Ni is basic, Mo is basic, Pd is basic, Pt base are arranged, but fusion temperature is between 1735 ℃～1900 ℃, the solder that steam forces down seldom.At present, have only Pt and Pt base alloy can satisfy such instructions for use.But because Pt and Pt base alloy raw material cost an arm and a leg, production cost is higher, so limited its extensive application.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to above-mentioned prior art; Provide a kind of cost low; Good with wetability and the spreadability of refractory metal W, Mo; Fusion temperature is between 1735 ℃～1900 ℃; Steam forces down; And the vanadium-base alloy braze of the boracic that can in the highly reliable cathode environment of vacuum electron device, use, the vapour pressure of this braze under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of vanadium-base alloy braze of boracic; It is characterized in that; This braze is made up of following raw materials by weight percent: boron 0.2%～6.5%; Surplus is vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity.
The vanadium-base alloy braze of above-mentioned a kind of boracic, the weight percent content of boron is 2.5%～4.5% in the said braze.
The vanadium-base alloy braze of above-mentioned a kind of boracic, the fusion temperature of said braze are 1735 ℃～1900 ℃.
The vanadium-base alloy braze of above-mentioned a kind of boracic, the fusion temperature of said braze are 1735 ℃～1780 ℃.
The vanadium-base alloy braze of above-mentioned a kind of boracic, said braze are Powdered.
The preparation method of the vanadium-base alloy braze of boracic of the present invention is: adopting quality purity to be not less than 99.95% V piece and quality purity, to be not less than 99.99% B grain be raw material; Nominal composition batching according to alloy; Adopt arc melting to become alloy cast ingot; Then alloy cast ingot is carried out machine cut processing or Mechanical Crushing; Grind through high energy ball mill again, after screening, pickling make the vanadium-base alloy braze powder of boracic of the present invention.
The vanadium-base alloy braze of boracic of the present invention, alloy constituent element V and B all have low vapour pressure, add B among the V, have reduced the fusing point of braze alloy, have strengthened at parent metal W, last wetability and the spreading property of Mo.V and B all have good alloying action to W, Mo simultaneously, and be also little to parent metal corrosivity, and seam-filling ability strengthens, and the weld seam high-temperature behavior is further improved.V, B and refractory metal W, Mo all can melt admittedly, can form good diffusion layer on the composition surface like this, can further improve the bond strength of weld seam.
The present invention compared with prior art has the following advantages:
1, the vanadium-base alloy braze cost of boracic of the present invention is low, and steam forces down, and can in the highly reliable cathode environment of vacuum electron device, use, and the fusion temperature of braze is 1735 ℃～1900 ℃, and brazing temperature is 1760 ℃～1980 ℃.
2, the vanadium-base alloy braze of boracic of the present invention is applicable to soldering refractory metal W, Mo and alloy thereof under Ar gas atmosphere or the vacuum state; Braze is with after refractory metal W, Mo soldering are connected; Wetability and spreadability are good; Angle of wetting is less than 5 °, and the spreading area of fusing back scolder is that former scolder is placed more than 4 times of area, the good fluidity of scolder; Seam-filling ability is strong; The weld seam elevated temperature strength is good, and the cathode weld part is under 1000 ℃～1200 ℃ vacuum work conditions, and the vapour pressure of braze is lower than 1 * 10
-5Pa.
Through embodiment, technical scheme of the present invention is done further detailed description below.
The specific embodiment
Embodiment 1
The vanadium-base alloy braze of the boracic of present embodiment is made up of following raw materials by weight percent: boron 0.2%, surplus are vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity; The fusion temperature of said braze is 1735 ℃～1900 ℃, and said braze is Powdered.
The preparation method of the vanadium-base alloy braze of the boracic of present embodiment is: by 0.2 (wt) %B; Surplus is the V batching; Adopt arc melting to become alloy cast ingot; Then alloy cast ingot is carried out machine cut processing or Mechanical Crushing; Grind through high energy ball mill again, after screening, pickling make the vanadium-base alloy braze powder of boracic.
The vanadium-base alloy braze of the boracic of present embodiment is carried out the welding procedure test of solder in Ar gas atmosphere or vacuum brazing furnace; The vanadium-base alloy braze of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good; Parent metal there is not the erosion of melting; The spreading area of fusing back scolder is that former scolder is placed more than 4 times of area; Angle of wetting is less than 5 °, and the vapour pressure of braze under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 2
The vanadium-base alloy braze of the boracic of present embodiment is made up of following raw materials by weight percent: boron 4.5%, surplus are vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity; The fusion temperature of said braze is 1735 ℃～1780 ℃, and said braze is Powdered.
The preparation method of the vanadium-base alloy braze of the boracic of present embodiment is: by 4.5 (wt) %B; Surplus is the V batching; Adopt arc melting to become alloy cast ingot; Then alloy cast ingot is carried out machine cut processing or Mechanical Crushing; Grind through high energy ball mill again, after screening, pickling make the vanadium-base alloy braze powder of boracic.
The vanadium-base alloy braze of the boracic of present embodiment is carried out the welding procedure test of solder in Ar gas atmosphere or vacuum brazing furnace; The vanadium-base alloy braze of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good; Parent metal there is not the erosion of melting; The spreading area of fusing back scolder is that former scolder is placed more than 4 times of area; Angle of wetting is less than 5 °, and the vapour pressure of braze under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 3
The vanadium-base alloy braze of the boracic of present embodiment is made up of following raw materials by weight percent: boron 6.5%, surplus are vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity; The fusion temperature of said braze is 1735 ℃～1890 ℃, and said braze is Powdered.
The preparation method of the vanadium-base alloy braze of the boracic of present embodiment is: by 6.5 (wt) %B; Surplus is the V batching; Adopt arc melting to become alloy cast ingot; Then alloy cast ingot is carried out machine cut processing or Mechanical Crushing; Grind through high energy ball mill again, after screening, pickling make the vanadium-base alloy braze powder of boracic.
The vanadium-base alloy braze of the boracic of present embodiment is carried out the welding procedure test of solder in Ar gas atmosphere or vacuum brazing furnace; The vanadium-base alloy braze of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good; Parent metal there is not the erosion of melting; The spreading area of fusing back scolder is that former scolder is placed more than 4 times of area; Angle of wetting is less than 5 °, and the vapour pressure of braze under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 4
The vanadium-base alloy braze of the boracic of present embodiment is made up of following raw materials by weight percent: boron 3.5%, surplus are vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity; The fusion temperature of said braze is 1735 ℃～1750 ℃, and said braze is Powdered.
The preparation method of the vanadium-base alloy braze of the boracic of present embodiment is: by 3.5 (wt) %B; Surplus is the V batching; Adopt arc melting to become alloy cast ingot; Then alloy cast ingot is carried out machine cut processing or Mechanical Crushing; Grind through high energy ball mill again, after screening, pickling make the vanadium-base alloy braze powder of boracic.
The vanadium-base alloy braze of the boracic of present embodiment is carried out the welding procedure test of solder in Ar gas atmosphere or vacuum brazing furnace; The vanadium-base alloy braze of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good; Parent metal there is not the erosion of melting; The spreading area of fusing back scolder is that former scolder is placed more than 4 times of area; Angle of wetting is less than 5 °, and the vapour pressure of braze under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 5
The vanadium-base alloy braze of the boracic of present embodiment is made up of following raw materials by weight percent: boron 2.5%, surplus are vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity; The fusion temperature of said braze is 1735 ℃～1780 ℃, and said braze is Powdered.
The preparation method of the vanadium-base alloy braze of the boracic of present embodiment is: by 2.5 (wt) %B; Surplus is the V batching; Adopt arc melting to become alloy cast ingot; Then alloy cast ingot is carried out machine cut processing or Mechanical Crushing; Grind through high energy ball mill again, after screening, pickling make the vanadium-base alloy braze powder of boracic.
The vanadium-base alloy braze of the boracic of present embodiment is carried out the welding procedure test of solder in Ar gas atmosphere or vacuum brazing furnace; The vanadium-base alloy braze of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good; Parent metal there is not the erosion of melting; The spreading area of fusing back scolder is that former scolder is placed more than 4 times of area; Angle of wetting is less than 5 °, and the vapour pressure of braze under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every according to inventing technical spirit to any simple modification, change and equivalent structure variation that above embodiment did, all still belong in the protection domain of technical scheme of the present invention.
Claims (5)
1. the vanadium-base alloy braze of a boracic; It is characterized in that; This braze is made up of following raw materials by weight percent: boron 0.2%～6.5%, surplus are vanadium and unavoidable impurities, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the said impurity.
2. the vanadium-base alloy braze of a kind of boracic according to claim 1 is characterized in that, the weight percent content of boron is 2.5%～4.5% in the said braze.
3. the vanadium-base alloy braze of a kind of boracic according to claim 1 is characterized in that, the fusion temperature of said braze is 1735 ℃～1900 ℃.
4. the vanadium-base alloy braze of a kind of boracic according to claim 3 is characterized in that, the fusion temperature of said braze is 1735 ℃～1780 ℃.
5. the vanadium-base alloy braze of a kind of boracic according to claim 1 is characterized in that, said braze is Powdered.
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|---|---|---|---|
| CN 201110231558 CN102303197B (en) | 2011-08-12 | 2011-08-12 | Boron-containing vanadium-base alloy brazing material |
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| CN 201110231558 CN102303197B (en) | 2011-08-12 | 2011-08-12 | Boron-containing vanadium-base alloy brazing material |
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| CN102303197A true CN102303197A (en) | 2012-01-04 |
| CN102303197B CN102303197B (en) | 2013-03-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808116A (en) * | 2017-03-24 | 2017-06-09 | 南昌专腾科技有限公司 | The preparation system and method for a kind of zinc-base solder |
| CN113996796A (en) * | 2021-11-04 | 2022-02-01 | 北京航空航天大学 | Preparation method of nickel-based as-cast brazing powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162392A (en) * | 1977-07-13 | 1979-07-24 | Union Carbide Corporation | Hard facing of metal substrates |
| CN101412163A (en) * | 2008-11-28 | 2009-04-22 | 西北有色金属研究院 | Ruthenium-vanadium binary alloy high-temperature brazing material |
| CN101412161A (en) * | 2008-11-28 | 2009-04-22 | 西北有色金属研究院 | Ruthenium-niobium binary alloy high-temperature brazing material |
-
2011
- 2011-08-12 CN CN 201110231558 patent/CN102303197B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4162392A (en) * | 1977-07-13 | 1979-07-24 | Union Carbide Corporation | Hard facing of metal substrates |
| CN101412163A (en) * | 2008-11-28 | 2009-04-22 | 西北有色金属研究院 | Ruthenium-vanadium binary alloy high-temperature brazing material |
| CN101412161A (en) * | 2008-11-28 | 2009-04-22 | 西北有色金属研究院 | Ruthenium-niobium binary alloy high-temperature brazing material |
Non-Patent Citations (2)
| Title |
|---|
| 孙明炜等: "铌在烧结钕铁硼合金中的特殊作用", 《稀有金属快报》 * |
| 薛东妹等: "硼对V-N微合金钢热影响区组织和性能的影响", 《钢铁》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808116A (en) * | 2017-03-24 | 2017-06-09 | 南昌专腾科技有限公司 | The preparation system and method for a kind of zinc-base solder |
| CN113996796A (en) * | 2021-11-04 | 2022-02-01 | 北京航空航天大学 | Preparation method of nickel-based as-cast brazing powder |
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| Publication number | Publication date |
|---|---|
| CN102303197B (en) | 2013-03-20 |
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