CN102303197B - Boron-containing vanadium-base alloy brazing material - Google Patents
Boron-containing vanadium-base alloy brazing material Download PDFInfo
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- CN102303197B CN102303197B CN 201110231558 CN201110231558A CN102303197B CN 102303197 B CN102303197 B CN 102303197B CN 201110231558 CN201110231558 CN 201110231558 CN 201110231558 A CN201110231558 A CN 201110231558A CN 102303197 B CN102303197 B CN 102303197B
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- base alloy
- brazing material
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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 brazing material of boracic.
Background technology
At present, can soldering nearly tens kinds of the cored solder of W, Mo, the scolder such as the Cu base is arranged, Ni is basic, Mo is basic, Pd is basic, Pt is basic, but fusion temperature is between 1735 ℃～1900 ℃, the solder that steam forces down seldom.At present, only have Pt and Pt base alloy can satisfy such instructions for use.But because Pt and Pt base alloy raw material are expensive, production cost is higher, so limited its extensive application.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the 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 brazing material of the boracic that can in the highly reliable cathode environment of vacuum electron device, use, the vapour pressure of this cored solder under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of vanadium-base alloy brazing material of boracic, it is characterized in that, this cored solder is comprised of the raw material of following percentage by weight: boron 0.2%～6.5%, surplus is vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity.
The vanadium-base alloy brazing material of above-mentioned a kind of boracic, the weight percent content of boron is 2.5%～4.5% in the described cored solder.
The vanadium-base alloy brazing material of above-mentioned a kind of boracic, the fusion temperature of described cored solder are 1735 ℃～1900 ℃.
The vanadium-base alloy brazing material of above-mentioned a kind of boracic, the fusion temperature of described cored solder are 1735 ℃～1780 ℃.
The vanadium-base alloy brazing material of above-mentioned a kind of boracic, described cored solder are Powdered.
The preparation method of the vanadium-base alloy brazing material 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 the alloy ingot casting carries out machine cut processing or Mechanical Crushing, grind through high energy ball mill again, make the vanadium-base alloy brazing material powder of boracic of the present invention finally by screening, pickling.
The vanadium-base alloy brazing material 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 cored solder alloy, have strengthened wetability and spreading property on parent metal W, 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 brazing material cost of boracic of the present invention is low, and steam forces down, and can use in the highly reliable cathode environment of vacuum electron device, and the fusion temperature of cored solder is 1735 ℃～1900 ℃, and brazing temperature is 1760 ℃～1980 ℃.
2, the vanadium-base alloy brazing material 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, cored solder 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 scolder is more than 4 times of former scolder placing area after the fusing, 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 cored solder is lower than 1 * 10
-5Pa.
Below by embodiment, technical scheme of the present invention is described in further detail.
The specific embodiment
Embodiment 1
The vanadium-base alloy brazing material of the boracic of present embodiment is comprised of the raw material of following percentage by weight: boron 0.2%, surplus are vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity; The fusion temperature of described cored solder is 1735 ℃～1900 ℃, and described cored solder is Powdered.
The preparation method of the vanadium-base alloy brazing material 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 the alloy ingot casting carries out machine cut processing or Mechanical Crushing, grind through high energy ball mill again, make the vanadium-base alloy brazing material powder of boracic finally by screening, pickling.
The vanadium-base alloy brazing material 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 brazing material of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good, to parent metal without melting erosion, the spreading area of scolder is more than 4 times of former scolder placing area after the fusing, angle of wetting is less than 5 °, and the vapour pressure of cored solder under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 2
The vanadium-base alloy brazing material of the boracic of present embodiment is comprised of the raw material of following percentage by weight: boron 4.5%, surplus are vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity; The fusion temperature of described cored solder is 1735 ℃～1780 ℃, and described cored solder is Powdered.
The preparation method of the vanadium-base alloy brazing material 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 the alloy ingot casting carries out machine cut processing or Mechanical Crushing, grind through high energy ball mill again, make the vanadium-base alloy brazing material powder of boracic finally by screening, pickling.
The vanadium-base alloy brazing material 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 brazing material of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good, to parent metal without melting erosion, the spreading area of scolder is more than 4 times of former scolder placing area after the fusing, angle of wetting is less than 5 °, and the vapour pressure of cored solder under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 3
The vanadium-base alloy brazing material of the boracic of present embodiment is comprised of the raw material of following percentage by weight: boron 6.5%, surplus are vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity; The fusion temperature of described cored solder is 1735 ℃～1890 ℃, and described cored solder is Powdered.
The preparation method of the vanadium-base alloy brazing material 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 the alloy ingot casting carries out machine cut processing or Mechanical Crushing, grind through high energy ball mill again, make the vanadium-base alloy brazing material powder of boracic finally by screening, pickling.
The vanadium-base alloy brazing material 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 brazing material of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good, to parent metal without melting erosion, the spreading area of scolder is more than 4 times of former scolder placing area after the fusing, angle of wetting is less than 5 °, and the vapour pressure of cored solder under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 4
The vanadium-base alloy brazing material of the boracic of present embodiment is comprised of the raw material of following percentage by weight: boron 3.5%, surplus are vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity; The fusion temperature of described cored solder is 1735 ℃～1750 ℃, and described cored solder is Powdered.
The preparation method of the vanadium-base alloy brazing material 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 the alloy ingot casting carries out machine cut processing or Mechanical Crushing, grind through high energy ball mill again, make the vanadium-base alloy brazing material powder of boracic finally by screening, pickling.
The vanadium-base alloy brazing material 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 brazing material of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good, to parent metal without melting erosion, the spreading area of scolder is more than 4 times of former scolder placing area after the fusing, angle of wetting is less than 5 °, and the vapour pressure of cored solder under 1000 ℃～1200 ℃ vacuum conditions is not higher than 1 * 10
-5Pa.
Embodiment 5
The vanadium-base alloy brazing material of the boracic of present embodiment is comprised of the raw material of following percentage by weight: boron 2.5%, surplus are vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity; The fusion temperature of described cored solder is 1735 ℃～1780 ℃, and described cored solder is Powdered.
The preparation method of the vanadium-base alloy brazing material 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 the alloy ingot casting carries out machine cut processing or Mechanical Crushing, grind through high energy ball mill again, make the vanadium-base alloy brazing material powder of boracic finally by screening, pickling.
The vanadium-base alloy brazing material 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 brazing material of boracic on parent metal W, Mo and alloy thereof wetting, spreading property is good, to parent metal without melting erosion, the spreading area of scolder is more than 4 times of former scolder placing area after the fusing, angle of wetting is less than 5 °, and the vapour pressure of cored solder 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 any simple modification, change and equivalent structure of above embodiment being done according to the invention technical spirit changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (3)
1. the vanadium-base alloy brazing material of a boracic, it is characterized in that, this cored solder is comprised of the raw material of following percentage by weight: boron 0.2%～6.5%, surplus are vanadium and inevitable impurity, and the weight percent content of Zn, Cd and Pb element all is not more than 0.001% in the described impurity.
2. the vanadium-base alloy brazing material 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 described cored solder.
3. the vanadium-base alloy brazing material of a kind of boracic according to claim 1 is characterized in that, described cored solder is Powdered.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN102303197B true CN102303197B (en) | 2013-03-20 |
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| 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 |
| CN113996796B (en) * | 2021-11-04 | 2022-10-14 | 北京航空航天大学 | Preparation method of nickel-based as-cast brazing powder |
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| US4162392A (en) * | 1977-07-13 | 1979-07-24 | Union Carbide Corporation | Hard facing of metal substrates |
| CN101412163B (en) * | 2008-11-28 | 2010-12-08 | 西北有色金属研究院 | Ruthenium-vanadium binary alloy high-temperature brazing material |
| CN101412161B (en) * | 2008-11-28 | 2010-12-08 | 西北有色金属研究院 | Ruthenium-niobium binary alloy high-temperature brazing material |
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