CN103567666B - Be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed and preparation and method for welding - Google Patents

Be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed and preparation and method for welding Download PDF

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Publication number
CN103567666B
CN103567666B CN201310572100.7A CN201310572100A CN103567666B CN 103567666 B CN103567666 B CN 103567666B CN 201310572100 A CN201310572100 A CN 201310572100A CN 103567666 B CN103567666 B CN 103567666B
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brazed
brazing material
soldering
strip brazing
welded
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CN103567666A (en
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静永娟
李晓红
侯金宝
岳喜山
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AVIC Beijing Aeronautical Manufacturing Technology Research Institute
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AVIC Beijing Aeronautical Manufacturing Technology Research Institute
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    • 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
    • B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
    • B23K35/325—Ti as the principal constituent
    • 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
    • B23K35/40—Making wire or rods for soldering or welding
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/14—Titanium or alloys thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)

Abstract

The invention belongs to soldering tech, relate to for titanium alloy soldering and Ti 2the improvement of the solder of AlNb alloy brazed.The percentage by weight of inventive tape solder chemical analysis is: Zr:5% ~ 7%; Cu:14% ~ 15%; Ni:14% ~ 15%; Surplus is Ti.The preparation process of inventive tape solder is: take material powder in proportion; Vacuum metling; Prepare strip brazing material.The welding method of use inventive tape solder is: the surface to be brazed of clean part to be welded; Location strip brazing material; Assembly of the parts; Part soldering; Cooling.The present invention can avoid weld interface easily to form intermetallic compound, improves the intensity of soldered fitting.

Description

Be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed and preparation and method for welding
Technical field
The invention belongs to soldering tech, relate to for titanium alloy soldering and Ti 2the improvement of the solder of AlNb alloy brazed.
Background technology
Titanium alloy soldering component is used widely at aerospace field, as titanium alloy soldering combined construction is applied all to some extent at positions such as aircraft wing, empennage, rear body sidewall, engine compartment doors.Ti 2alNb alloy is novel fire resistant structural material, belong to intermetallic compound, have the performance characteristic of low-density, high strength, high rigidity, the welded unit of this material is expected to replace conventional high-temperature alloy in the engine of high thrust-weight ratio, plays the effect of structure loss of weight.The brazing quality of component is one of key influence factor of component serviceability.At present, the brazing material (hereinafter referred to as solder) of titanium alloy is broadly divided into five classes: Ag base, Al base, Pd base, Ti base and Ti-Zr base solder; The corrosion resistance of the soldering interface of Ag base and Al base solder is poor; Pd base solder serviceability temperature is more than 1000 DEG C, and the phase transition temperature higher than titanium alloy causes titanium alloy performance to reduce; The serviceability temperature (830 DEG C ~ 940 DEG C scopes) of Ti base and Ti-Zr base solder is moderate, and can obtain organization type and the close soldering interface of titanium alloy, therefore, extensively adopts Ti base and Ti-Zr base solder as solder during titanium alloy soldering at present.It is reported, soldering Ti 2the solder of AlNb alloy is Ti base and Ti-Zr base solder.
At present, the shortcoming of Ti base and Ti-Zr base solder is: adopt these two kinds of solders to carry out titanium alloy soldering and Ti 2during AlNb alloy brazed, weld interface easily forms intermetallic compound, and in follow-up post weld heat treatment, intermetallic compound is difficult to remove, and therefore result in soldering joint strength lower.
Summary of the invention
The object of the invention is: propose one and be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed and preparation method, to avoid weld interface easily to form intermetallic compound, improve the intensity of soldered fitting.
Technical scheme of the present invention is: be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed, is characterized in that: the percentage by weight of this strip brazing material chemical analysis is: Zr:5% ~ 7%; Cu:14% ~ 15%; Ni:14% ~ 15%; Surplus is Ti.
Be applicable to titanium alloy soldering and Ti as described above 2the preparation method of the strip brazing material of AlNb alloy brazed, is characterized in that: the step of preparation is as follows:
1, get the raw materials ready: take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, the granularity of raw material is not less than 40 orders;
2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1700 DEG C ~ 2000 DEG C, and temperature retention time 0.5h ~ 1h, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1700 DEG C ~ 2000 DEG C, then makes amorphous state strip brazing material, the thickness δ=0.03mm ~ 0.05mm of strip brazing material.
Use and be applicable to titanium alloy soldering and Ti as described above 2the strip brazing material of AlNb alloy brazed carries out the method for soldering, it is characterized in that: the step of soldering is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is not more than 0.1mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 915 DEG C ~ 930 DEG C, temperature retention time 2h ~ 4h, and vacuum is 10 -3pa ~ 10 -5pa; Soldering Ti 2during AlNb alloy, heating-up temperature is: 950 DEG C ~ 960 DEG C, temperature retention time 2h ~ 4h, and vacuum is 10 -3pa ~ 10 -5pa;
5, cool: with stove cool to room temperature after soldering.
Advantage of the present invention is: propose one and be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed and preparation method, can avoid weld interface easily to form intermetallic compound, improve the intensity of soldered fitting.
Accompanying drawing explanation
Fig. 1 is the weld interface macrograph that embodiments of the invention 1 weld TC4 titanium alloy.
Fig. 2 is the weld interface macrograph that comparative example 1 adopts current Ti-Zr base solder welding TC4 titanium alloy.
Fig. 3 is that embodiments of the invention 3 weld Ti 2the weld interface macrograph of AlNb alloy.
Fig. 4 is that comparative example 2 adopts current Ti-Zr base solder welding Ti 2the weld interface macrograph of AlNb alloy.
Detailed description of the invention
Below the present invention is described in further details.Be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed, is characterized in that: the percentage by weight of this strip brazing material chemical analysis is: Zr:5% ~ 7%; Cu:14% ~ 15%; Ni:14% ~ 15%; Surplus is Ti.
Be applicable to titanium alloy soldering and Ti as described above 2the preparation method of the strip brazing material of AlNb alloy brazed, is characterized in that: the step of preparation is as follows:
1, get the raw materials ready: take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, the granularity of raw material is not less than 40 orders;
2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1700 DEG C ~ 2000 DEG C, and temperature retention time 0.5h ~ 1h, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1700 DEG C ~ 2000 DEG C, then makes amorphous state strip brazing material, the thickness δ=0.03mm ~ 0.05mm of strip brazing material.
Use and be applicable to titanium alloy soldering and Ti as described above 2the strip brazing material of AlNb alloy brazed carries out the method for soldering, it is characterized in that: the step of soldering is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is not more than 0.1mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 915 DEG C ~ 930 DEG C, temperature retention time 15min ~ 4h, and vacuum is 10 -3pa ~ 10 -5pa; Soldering Ti 2during AlNb alloy, heating-up temperature is: 950 DEG C ~ 960 DEG C, temperature retention time 15min ~ 2h, and vacuum is 10 -3pa ~ 10 -5pa;
5, cool: with stove cool to room temperature after soldering.
Operation principle of the present invention is: the present invention mainly utilizes the effect of Zr element in solder, when Zr constituent content is suitable, in Ti-Zr base solder, Zr element plays the effect reducing solder fusing point on the one hand, and on the other hand, Zr element has best solution strengthening effect to solder.
Embodiment 1
1, get the raw materials ready: the percentage by weight of strip brazing material chemical analysis is: Zr:5%; Cu:15%; Ni:15%; Surplus is Ti.Take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, and the granularity of raw material is not less than 40 orders;
2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1700 DEG C, and temperature retention time 0.5h, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1700 DEG C, then makes amorphous state strip brazing material, the thickness δ=0.05mm of strip brazing material.
Use strip brazing material as described above to carry out the method for TC4 titanium alloy soldering, it is characterized in that: the step of soldering is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is 0.05mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 930 DEG C, temperature retention time 4h, and vacuum is 10 -3pa;
5, cool: with stove cool to room temperature after soldering;
6, strength test: the room temperature tensile sample TC4 alloy welded above being processed as standard, the then tensile strength of test sample, mean intensity is 887MPa.
Comparative example 1, the chemical analysis percentage by weight of existing Ti-Zr solder is: Zr:37%; Cu:15%; Ni:10%; Surplus is Ti.This solder is adopted to carry out the soldering processes of TC4 titanium alloy as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is 0.05mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 930 DEG C, temperature retention time 15min, and vacuum is 10 -3pa;
5, cool: with stove cool to room temperature after soldering;
6, strength test: the room temperature tensile sample TC4 alloy welded above being processed as standard, the then tensile strength of test sample, mean intensity is 840MPa.
Fig. 1 and Fig. 2 is respectively the TC4 titanium alloy soldering interface tissue using solder of the present invention and existing solder.
Embodiment 2
1, get the raw materials ready: the percentage by weight of strip brazing material chemical analysis is: Zr:6%; Cu:14%; Ni:15%; Surplus is Ti.Take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, and the granularity of raw material is not less than 40 orders;
2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1800 DEG C, and temperature retention time 0.8h, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1750 DEG C, then makes amorphous state strip brazing material, the thickness δ=0.04mm of strip brazing material.
Use strip brazing material as described above to carry out the method for TA18 titanium alloy soldering, it is characterized in that: the step of soldering is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is 0.06mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 920 DEG C, temperature retention time 2h, and vacuum is 10 -5pa;
5, cool: with stove cool to room temperature after soldering.
Embodiment 3
1, get the raw materials ready: the percentage by weight of strip brazing material chemical analysis is: Zr:7%; Cu:15%; Ni:14%; Surplus is Ti.Take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, and the granularity of raw material is not less than 40 orders;
2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1700 DEG C, and temperature retention time 1h, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1800 DEG C, then makes amorphous state strip brazing material, the thickness δ=0.03mm of strip brazing material.
Strip brazing material as described above is used to carry out Ti 2the method of AlNb alloy brazed, is characterized in that: the step of soldering is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is 0.06mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 950 DEG C, temperature retention time 120min, and vacuum is 10 -5pa;
5, cool: with stove cool to room temperature after soldering.
6, strength test: the room temperature tensile sample TC4 alloy welded above being processed as standard, the then tensile strength of test sample, mean intensity is 885MPa.
Comparative example 2, the chemical analysis percentage by weight of existing Ti-Zr solder is: Zr:37%; Cu:15%; Ni:10%; Surplus is Ti.This solder is adopted to carry out Ti 2the soldering processes of AlNb alloy is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is 0.05mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 930 DEG C, temperature retention time 15min, and vacuum is 10 -3pa;
5, cool: with stove cool to room temperature after soldering;
6, strength test: by the Ti welded above 2alNb alloy is processed as the room temperature tensile sample of standard, then the tensile strength of test sample, and mean intensity is 312MPa.
Fig. 3 and Fig. 4 is respectively the Ti using solder of the present invention and existing solder 2alNb alloy brazed Interface Microstructure.
Embodiment 4
1, get the raw materials ready: the percentage by weight of strip brazing material chemical analysis is: Zr:7%; Cu:15%; Ni:15%; Surplus is Ti.Take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, and the granularity of raw material is not less than 40 orders;
2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1800 DEG C, and temperature retention time 1h, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1800 DEG C, then makes amorphous state strip brazing material, the thickness δ=0.05mm of strip brazing material.
Strip brazing material as described above is used to carry out Ti 2the method of AlNb gold soldering, is characterized in that: the step of soldering is as follows:
1, the surface to be brazed of clean part to be welded;
2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is 0.06mm;
4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 960 DEG C, temperature retention time 30min, and vacuum is 10 -5pa;
5, cool: with stove cool to room temperature after soldering.

Claims (3)

1. be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed, is characterized in that: the percentage by weight of this strip brazing material chemical analysis is: Zr:5% ~ 7%; Cu:14% ~ 15%; Ni:14% ~ 15%; Surplus is Ti.
2. be applicable to titanium alloy soldering and Ti as claimed in claim 1 2the preparation method of the strip brazing material of AlNb alloy brazed, is characterized in that: the step of preparation is as follows:
2.1, get the raw materials ready: take required Zr, Cu, Ni and Ti material powder in proportion, the purity of raw material is not less than 99.9%, the granularity of raw material is not less than 40 orders;
2.2, vacuum metling: adopt vaccum sensitive stove that material powder is carried out melting, smelting temperature is 1700 DEG C ~ 2000 DEG C, and temperature retention time 0.5h ~ 1h, vacuum is not less than 10 -2pa, is then cast into ingot casting, and air cooling is to room temperature; Melt back 3 times;
2.3, strip brazing material is prepared: adopt vacuum quick quenching to get rid of vaccum sensitive stove on band machine by ingot melting, fusion temperature is 1700 DEG C ~ 2000 DEG C, and vacuum is not less than 10 -2pa, then makes amorphous state strip brazing material, the thickness δ=0.03mm ~ 0.05mm of strip brazing material.
3. use and be applicable to titanium alloy soldering and Ti as claimed in claim 1 2the strip brazing material of AlNb alloy brazed carries out the method for soldering, it is characterized in that: the step of soldering is as follows:
3.1, the surface to be brazed of clean part to be welded;
3.2, strip brazing material is located: the surface to be brazed one deck strip brazing material being layered on a part to be welded, is positioned on surface to be brazed by spot welding method by strip brazing material;
3.3, Assembly of the parts: fitted in the surface to be brazed of another part to be welded and the surface to be brazed of completing strip brazing material part to be welded by fixture, the gap between two surfaces to be brazed is not more than 0.1mm;
3.4, part soldering: assemble two parts to be welded are put into vacuum brazing furnace, and during brazing of titanium alloy, heating-up temperature is: 915 DEG C ~ 930 DEG C, temperature retention time 2h ~ 4h, and vacuum is 10 -3pa ~ 10 -5pa; Soldering Ti 2during AlNb alloy, heating-up temperature is: 950 DEG C ~ 960 DEG C, temperature retention time 2h ~ 4h, and vacuum is 10 -3pa ~ 10 -5pa;
3.5, cool: with stove cool to room temperature after soldering.
CN201310572100.7A 2013-11-15 2013-11-15 Be applicable to titanium alloy soldering and Ti 2the strip brazing material of AlNb alloy brazed and preparation and method for welding Active CN103567666B (en)

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CN110666397A (en) * 2019-10-21 2020-01-10 中国航发北京航空材料研究院 Brazing material for titanium-containing material, preparation method and brazing method
CN110666396A (en) * 2019-10-21 2020-01-10 中国航发北京航空材料研究院 Strip-shaped brazing material for titanium alloy medium-low temperature brazing, preparation method and brazing method
CN111702277B (en) * 2020-05-13 2021-10-22 中国科学院金属研究所 Ti2Medium-temperature Ti-based brazing filler metal special for brazing same or different AlNb-based alloy materials and preparation method and brazing process thereof
CN111702278B (en) * 2020-05-13 2021-10-22 中国科学院金属研究所 Ti2Medium-temperature Ti-based brazing filler metal for brazing same or different AlNb-based alloys as well as preparation method and brazing process thereof
CN111702281B (en) * 2020-05-13 2022-04-05 中国科学院金属研究所 Ti2Special intermediate-temperature Zr-based brazing filler metal for brazing same or different AlNb-based alloys as well as preparation method and brazing process thereof
CN111545950B (en) * 2020-05-22 2022-06-17 浙江库尔仕科技有限公司 Solder and heat-insulating container welded by same
CN111633356B (en) * 2020-06-09 2022-05-27 北京普惠三航科技有限公司 Brazing filler metal suitable for TC4 titanium alloy thin-wall honeycomb structure and preparation method and brazing method thereof

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