CN103752972A - Method of soldering titanium alloy thin-walled parts with Ti-Cu-Ni-Zr solder - Google Patents
Method of soldering titanium alloy thin-walled parts with Ti-Cu-Ni-Zr solder Download PDFInfo
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- CN103752972A CN103752972A CN201410017515.2A CN201410017515A CN103752972A CN 103752972 A CN103752972 A CN 103752972A CN 201410017515 A CN201410017515 A CN 201410017515A CN 103752972 A CN103752972 A CN 103752972A
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- Prior art keywords
- titanium alloy
- solder
- alloy thin
- wall part
- thin
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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
- B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
-
- 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
- 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
- B23K1/206—Cleaning
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/14—Titanium or alloys thereof
Abstract
The invention relates to a method of soldering titanium alloy thin-walled parts with Ti-Cu-Ni-Zr solder. The Ti-Cu-Ni-Zr solder is utilized, soldering temperature and temperature holding time are controlled, joint structure and shear strength are controlled accordingly, titanium alloy thin-walled parts are connected successfully, a high-strength high-penetration joint is obtained, shear strength of the joint reaches 557MPa-597MPa, and penetration rate reaches more than 95%. The titanium alloy thin-walled parts are successfully connected with the Ti-Cu-Ni-Zr solder, the joint is applied to airspace engines to connect the titanium alloy thin-walled parts with high strength and high quality, and the problem that cold end parts in the airspace engines are generally high in weight and poor in corrosion resistance is solved.
Description
Technical field
The present invention relates to a kind of method of the Ti of use base solder brazing titanium alloy thin-wall part.
Background technology
It is little, lightweight that titanium alloy has density, in Aero-Space and other industry, obtained increasingly extensive application.Titanium alloy thermal coefficient of expansion is little, and thermal conductivity is low, and intensity is not high, but plasticity is good, and machinability and corrosion resistance are good, under normal pressure, can process.Due to the above-mentioned good performance of titanium alloy, use titanium alloy material processing structure part, for aero-engine, as the fancase of aero-engine, stator ring etc., the thickness of these parts is between 0.6mm～1.0mm, and matrix material is mainly alpha and beta type titan alloy.But for the welding of titanium alloy material, especially thin-walled parts, generally can produce formation intermetallic compound after welding, causes joint fragility, and the low phenomenon of the saturating rate of pricker, thereby restricting the Performance and quality of aero titanium alloy thin-walled parts.
Summary of the invention
A kind of method that the object of this invention is to provide the Ti-Cu-Ni-Zr of use solder brazing titanium alloy thin-wall part, can meet welding instructions for use, solves the low and fragility problem of the saturating rate of joint pricker simultaneously.
Concrete technical scheme of the present invention is to use the method for Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part to realize by following steps:
1) titanium alloy thin-wall part is carried out before soldering, carry out soak cleaning, thoroughly remove oxide-film and greasy dirt;
2), in 4 hours, by titanium alloy thin-wall part dehydrogenation, prevent that hydrogen and titanium effect from generating TiH
2fragility phase, then puts into part clean container;
3) Ti-Cu-Ni-Zr solder powder and standard class soldering gel adhesive are mixed to get to paste Ti-Cu-Ni-Zr solder, titanium alloy thin-wall part and parts to be welded are installed by assembling jig, and the gap that guarantees commissure is between 0.01～0.1mm, then paste Ti-Cu-Ni-Zr solder injected and be coated with all, obtaining soldering assembly parts;
4) soldering assembly parts are placed in to vacuum brazing furnace, are forced into 5500～6500Pa, be then evacuated to 1.0 * 10
-3～1.5 * 10
-3pa, is then warming up to 480 ℃～520 ℃, insulation 10min～30 min, then be warming up to 870 ℃～890 ℃, insulation 70min～90min, is finally warming up to 920 ℃～980 ℃ of brazing temperatures, insulation 10min～30min, then cool to 280 ℃～320 ℃ with the furnace, then applying argon gas is cooling, comes out of the stove;
5) check.
Described Ti-Cu-Ni-Zr solder powder is that 50%～60% Ti powder, 20% Ni powder, 15% Cu powder and 5%～15% Zr powder melting obtain by weight percentage.
Described titanium alloy chemistry method for cleaning is: the HNO that is d=1.36 with composition in pickling trough
3hF18 ml/L～36ml/L of 250 ml/L～320ml/L, d=1.13, all the other carry out pickling for deionized water mixture; Temperature is room temperature, and the time is 1 min～5min, and after pickling, at room temperature the time of carrying out is no less than the washing of 2min immediately.
Described dehydrogenation method is: in vacuum drying oven, carry out, temperature is 450 ℃～500 ℃, insulation 4h～6h.
The described the 3rd) after step, anti-deformation fixture can be installed, described anti-deformation fixture is graphite material.
When thin-walled parts is welded, simultaneously to a titanium alloy exemplar in company with thin-walled parts together dehydrogenation, be coated with solder, welding to obtain a weld seam identical with thin-walled parts index, the specification of described titanium alloy exemplar is 100mm * 30mm * (0.6～1.0) mm, while being coated with solder, amount of lap is 25mm.
The present invention uses Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part, by controlling 920 ℃～980 ℃ of brazing temperatures and insulation 10min～30min, to control the distribution of reacting phase in throat depth and joint, thereby reach the object of controlling joint microstructure and shear strength, successfully realized the connection of titanium alloy thin-wall part, and obtained high strength, the saturating rate joint of high pricker, and the shear strength of joint reaches 557MPa～597MPa, and the saturating rate of pricker reaches more than 95%; Simultaneously, when thin-walled parts is welded, simultaneously to a titanium alloy exemplar in company with thin-walled parts together dehydrogenation, be coated with solder, soldering to obtain a weld seam identical with thin-walled parts index, this weld seam is tested, can obtain the welding index of thin-walled parts, as the foundation of checking thin-walled parts welding quality.The present invention uses Ti-Cu-Ni-Zr solder that titanium alloy thin-wall part is successfully connected, this connector is used for to Aero-Space engine, high strength, the high-quality of having realized titanium alloy thin-wall part connect, and have solved the high weight of cold junction parts ubiquity, the poor problem of corrosion resistance in Aero-Space engine.
The specific embodiment
Use the method step of Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part to comprise:
1) titanium alloy thin-wall part is carried out before soldering, carry out soak cleaning, thoroughly remove oxide-film and greasy dirt;
2), in 4 hours, by titanium alloy thin-wall part dehydrogenation, prevent that hydrogen and titanium effect from generating TiH
2fragility phase, then puts into part clean container;
3) Ti-Cu-Ni-Zr solder powder and standard class soldering gel adhesive are mixed to get to paste Ti-Cu-Ni-Zr solder, titanium alloy thin-wall part and parts to be welded are installed by assembling jig, and the gap that guarantees commissure is between 0.01～0.1mm, then paste Ti-Cu-Ni-Zr solder injected and be coated with all, obtaining soldering assembly parts;
4) soldering assembly parts are placed in to vacuum brazing furnace, are forced into 5500～6500Pa, be then evacuated to 1.0 * 10
-3～1.5 * 10
-3pa, is then warming up to 480 ℃～520 ℃, insulation 10min～30 min, then be warming up to 870 ℃～890 ℃, insulation 70min～90min, is finally warming up to 920 ℃～980 ℃ of brazing temperatures, insulation 10min～30min, then cool to 280 ℃～320 ℃ with the furnace, then applying argon gas is cooling, comes out of the stove;
5) check.
Described Ti-Cu-Ni-Zr solder powder is that 50%～60% Ti powder, 20% Ni powder, 15% Cu powder and 5%～15% Zr powder melting obtain by weight percentage.
Described titanium alloy chemistry method for cleaning is: the HNO that is d=1.36 with composition in pickling trough
3hF18ml/L～36ml/L of 250 ml/L～320ml/L, d=1.13, all the other carry out pickling for deionized water mixture; Temperature is room temperature, and the time is 1min～5min, and after pickling, at room temperature the time of carrying out is no less than the washing of 2min immediately.
Described dehydrogenation method is: in vacuum drying oven, carry out, temperature is 450 ℃～500 ℃, insulation 4h～6h.
The described the 3rd) after step, anti-deformation fixture can be installed, described anti-deformation fixture is graphite material.
When thin-walled parts is welded, simultaneously to a titanium alloy exemplar in company with thin-walled parts together dehydrogenation, be coated with solder, welding to obtain a weld seam identical with thin-walled parts index, the specification of described titanium alloy exemplar is 100mm * 30mm * (0.6～1.0) mm, while being coated with solder, amount of lap is 25mm.
embodiment 1
The welding of certain engine blade and ring, blade and ring are all thin-wall part, and vane thickness is, and ring thickness is 0.8mm, and it is more than 85% requiring the saturating rate of pricker after welding, the step that it is welded is:
1) part is carried out before soldering, carry out soak cleaning, thoroughly remove oxide-film and greasy dirt, described Chemical cleaning is: the HNO that is d=1.36 with composition in pickling trough
3the HF27ml/L of 285ml/L, d=1.13, all the other carry out pickling for deionized water mixture; Temperature is room temperature, and the time is 3min, after pickling, at room temperature carries out immediately the washing of 2min
2), in 4 hours, by titanium alloy thin-wall part dehydrogenation together with titanium alloy test specimen, prevent that hydrogen and titanium effect from generating TiH
2fragility phase, then puts into part clean container; Described dehydrogenation method is: in vacuum drying oven, carry out, temperature is 475 ℃, insulation 5h; The specification of described titanium alloy test specimen is 100mm * 30mm * 1.0mm;
3) Ti-Cu-Ni-Zr solder powder and standard class soldering gel adhesive are mixed to get to paste Ti-Cu-Ni-Zr solder, titanium alloy thin-wall part and parts to be welded are installed by assembling jig, and the gap that guarantees commissure is between 0.08mm, then paste Ti-Cu-Ni-Zr solder injected and be coated with all, obtain soldering assembly parts, then the graphite fixture that prevents distortion is installed on soldering assembly parts; Titanium alloy exemplar is coated with to solder, amount of lap is 25mm simultaneously.Described Ti-Cu-Ni-Zr solder powder is that 57% Ti powder, 20% Ni powder, 15% Cu powder and 8% Zr powder melting obtain by weight percentage;
4) soldering assembly parts are placed in to vacuum brazing furnace, are forced into 6000Pa, be then evacuated to 1.3 * 10
-3pa, is then warming up to 500 ℃, insulation 10min, then be warming up to 880 ℃, and insulation 80min, is finally warming up to 960 ℃ of brazing temperatures, and insulation 20min, then cool to 300 ℃ with the furnace, then applying argon gas is cooling, comes out of the stove;
5) check.Titanium alloy exemplar is tested, and index is: the saturating rate of pricker reaches more than 95%, and shearing strength of joint reaches 571MPa.
Conclusion: qualified.
Claims (8)
1. a method of using Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part, is characterized in that, described method comprises the following steps:
1) titanium alloy thin-wall part is carried out before soldering, carry out soak cleaning, thoroughly remove oxide-film and greasy dirt;
2), in 4 hours, by titanium alloy thin-wall part dehydrogenation, prevent that hydrogen and titanium effect from generating TiH
2fragility phase, then puts into part clean container;
3) Ti-Cu-Ni-Zr solder powder and standard class soldering gel adhesive are mixed to get to paste Ti-Cu-Ni-Zr solder, titanium alloy thin-wall part and parts to be welded are installed by assembling jig, and the gap that guarantees commissure is between 0.01～0.1mm, then paste Ti-Cu-Ni-Zr solder injected and be coated with all, obtaining soldering assembly parts;
4) soldering assembly parts are placed in to vacuum brazing furnace, are forced into 5500～6500Pa, be then evacuated to 1.0 * 10
-3～1.5 * 10
-3pa, is then warming up to 480 ℃～520 ℃, insulation 10min～30 min, then be warming up to 870 ℃～890 ℃, insulation 70min～90min, is finally warming up to 920 ℃～980 ℃ of brazing temperatures, insulation 10min～30min, then cool to 280 ℃～320 ℃ with the furnace, then applying argon gas is cooling, comes out of the stove;
5) check.
2. the method for use as claimed in claim 1 Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part, it is characterized in that, described Ti-Cu-Ni-Zr solder powder is that 50～60% Ti powder, 20% Ni powder, 15% Cu powder and 5～15% Zr powder melting obtain by weight percentage.
3. the method for use Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part as claimed in claim 1, is characterized in that, described titanium alloy chemistry method for cleaning is: the HNO that is d=1.36 with composition in pickling trough
3hF18～36ml/L of 250～320ml/L, d=1.13, all the other carry out pickling for deionized water mixture; Temperature is room temperature, and the time is 1～5min, and after pickling, at room temperature the time of carrying out is no less than the washing of 2min immediately.
4. the method for use Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part as claimed in claim 1, is characterized in that, described dehydrogenation method is: in vacuum drying oven, carry out, temperature is 450～500 ℃, insulation 4～6h.
5. the method for use as claimed in claim 1 Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part, is characterized in that, the described the 3rd), after step, anti-deformation fixture can be installed.
6. the method for use Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part as claimed in claim 5, is characterized in that, described anti-deformation fixture is graphite material.
7. the method for use as claimed in claim 1 Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part, it is characterized in that, described when thin-walled parts is welded, simultaneously to a titanium alloy exemplar in company with thin-walled parts together dehydrogenation, be coated with solder, soldering to obtain a weld seam identical with thin-walled parts index.
8. the method for use Ti-Cu-Ni-Zr solder brazing titanium alloy thin-wall part as claimed in claim 7, is characterized in that, the specification of described titanium alloy exemplar is 100 * 30 * (0.6～1.0) mm, and while being coated with solder, amount of lap is 25mm.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105127536A (en) * | 2015-09-09 | 2015-12-09 | 哈尔滨工业大学（威海） | Method for brazing titanium alloy through nano-copper solder |
| CN106216879A (en) * | 2016-08-17 | 2016-12-14 | 武汉工程大学 | A kind of Cu TiH2ni+B NEW TYPE OF COMPOSITE solder and its preparation method and application |
| CN107186386A (en) * | 2017-06-20 | 2017-09-22 | 黄河水利职业技术学院 | A kind of new γ TiAl alloys put hydrogen high-temp solder and preparation method thereof |
| CN108406029A (en) * | 2018-05-21 | 2018-08-17 | 衢州学院 | A kind of titanium-based composite soldering and its preparation, method for welding |
| CN108453332A (en) * | 2018-02-08 | 2018-08-28 | 中国科学院金属研究所 | The soldering processes of amorphous state Ti-Zr-Cu-Ni solder vacuum brazing TiAl-base alloys |
| CN108581269A (en) * | 2018-05-02 | 2018-09-28 | 重庆金荣金属有限公司 | A kind of copper-based medium temperature composite solder |
| CN108888053A (en) * | 2018-07-18 | 2018-11-27 | 台州市泰澄电子科技有限公司 | A kind of pure titanium metal vacuum cup and its manufacturing process |
| CN108907509A (en) * | 2018-08-15 | 2018-11-30 | 哈尔滨工业大学 | A kind of Zr-Ni solder and its preparation method and application for the soldering of nuclear reactor structure |
| CN109926677A (en) * | 2019-05-06 | 2019-06-25 | 衢州学院 | The welding method and weldment of nickel-base alloy |
| CN110587050A (en) * | 2019-09-24 | 2019-12-20 | 贵州永红航空机械有限责任公司 | Brazing method for controlling ablation and cracks of titanium and titanium alloy plate fin radiator |
| 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 |
| CN113798653A (en) * | 2021-09-10 | 2021-12-17 | 中国航发哈尔滨东安发动机有限公司 | Method for effectively controlling width of electron beam weld of titanium alloy thin-wall part |
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| CN114247947A (en) * | 2022-01-12 | 2022-03-29 | 湘潭大学 | Vacuum brazing connection method of C/C radiating fins and Ti tube |
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| CN105127536A (en) * | 2015-09-09 | 2015-12-09 | 哈尔滨工业大学（威海） | Method for brazing titanium alloy through nano-copper solder |
| CN106216879A (en) * | 2016-08-17 | 2016-12-14 | 武汉工程大学 | A kind of Cu TiH2ni+B NEW TYPE OF COMPOSITE solder and its preparation method and application |
| CN106216879B (en) * | 2016-08-17 | 2018-07-17 | 武汉工程大学 | A kind of Cu-TiH2- Ni+B composite solders and its preparation method and application |
| CN107186386A (en) * | 2017-06-20 | 2017-09-22 | 黄河水利职业技术学院 | A kind of new γ TiAl alloys put hydrogen high-temp solder and preparation method thereof |
| CN107186386B (en) * | 2017-06-20 | 2019-05-14 | 黄河水利职业技术学院 | A kind of novel gamma-TiAl alloy sets hydrogen high-temp solder and preparation method thereof |
| CN108453332A (en) * | 2018-02-08 | 2018-08-28 | 中国科学院金属研究所 | The soldering processes of amorphous state Ti-Zr-Cu-Ni solder vacuum brazing TiAl-base alloys |
| CN108453332B (en) * | 2018-02-08 | 2021-01-08 | 中国科学院金属研究所 | Brazing process for vacuum brazing TiAl-based alloy by using amorphous Ti-Zr-Cu-Ni brazing filler metal |
| CN108581269A (en) * | 2018-05-02 | 2018-09-28 | 重庆金荣金属有限公司 | A kind of copper-based medium temperature composite solder |
| CN108406029A (en) * | 2018-05-21 | 2018-08-17 | 衢州学院 | A kind of titanium-based composite soldering and its preparation, method for welding |
| CN108888053A (en) * | 2018-07-18 | 2018-11-27 | 台州市泰澄电子科技有限公司 | A kind of pure titanium metal vacuum cup and its manufacturing process |
| CN108907509B (en) * | 2018-08-15 | 2020-12-29 | 哈尔滨工业大学 | Zr-Ni brazing filler metal for brazing nuclear reactor core structure and preparation method and application thereof |
| CN108907509A (en) * | 2018-08-15 | 2018-11-30 | 哈尔滨工业大学 | A kind of Zr-Ni solder and its preparation method and application for the soldering of nuclear reactor structure |
| CN109926677A (en) * | 2019-05-06 | 2019-06-25 | 衢州学院 | The welding method and weldment of nickel-base alloy |
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| CN114178638A (en) * | 2021-12-03 | 2022-03-15 | 湘潭大学 | Welding method for high-strength graphite pipe and titanium alloy pipe sleeved composite component |
| CN114247947A (en) * | 2022-01-12 | 2022-03-29 | 湘潭大学 | Vacuum brazing connection method of C/C radiating fins and Ti tube |
| CN114247947B (en) * | 2022-01-12 | 2023-05-30 | 湘潭大学 | Vacuum brazing connection method for C/C radiating fin and Ti tube |
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