CN104741722B - The method of TiNi solder vacuum brazing TZM alloys and ZrC/W composite materials - Google Patents
The method of TiNi solder vacuum brazing TZM alloys and ZrC/W composite materials Download PDFInfo
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- CN104741722B CN104741722B CN201510186462.1A CN201510186462A CN104741722B CN 104741722 B CN104741722 B CN 104741722B CN 201510186462 A CN201510186462 A CN 201510186462A CN 104741722 B CN104741722 B CN 104741722B
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Classifications
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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
- 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
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- 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
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Abstract
The invention discloses a kind of method of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials, it is characterized in that using TiNi high-temp solders, steps are as follows in vacuum condition soldering TZM alloys and ZrC/W composite materials：Ni are weighed by mass percentage（Foil）With Ti（Foil）Paillon solder is made；To the position grinding process to be welded of base material TZM and ZrC/W；Paillon solder and soldering base material are cleaned by ultrasonic with acetone and ethanol solution successively；Paillon solder is placed between TZM alloys and ZrC/W composite materials, component to be welded is formed, is put in vacuum brazing furnace, be evacuated down to 5.0 × 10‑3Pa and heat temperature raising soldering, for the solder used in of the invention without precious metal, material is extensive, it is economic and practical, production method is simple, and the TZM alloys of acquisition are not less than 111MPa with the average shear strength of ZrC/W composite material soldered fittings, has good promotional value.
Description
Technical field
The invention belongs to welding technology fields, and in particular to high-temperature brazing material and preparation method thereof, it is closed suitable for TZM
The vacuum brazing of gold and ZrC/W composite materials.
Background technology
TZM is containing 0.5%Ti and 0.08%Zr（wt.%）Molybdenum alloy, have that fusing point is high, intensity is big, elasticity modulus is high, line
The features such as coefficient of expansion is small, steam forces down, electrical and thermal conductivity is good, corrosion stability is strong and mechanical behavior under high temperature is good, extensive use
In war industry, space flight and aviation and nuclear power field, such as distribution valve body, rocket nozzle, gas pipeline, the jet pipe in torpedo engine
Larynx is lined with and the radiation shield on nuclear energy source device, supporting rack, heat exchanger, rail bar etc..
ZrC-W, which is ZrC particles, enhances tungsten-based composite material, has excellent mechanical behavior under high temperature, thermophysical property, heat resistanceheat resistant
Shake and ablation resistance, hyperthermal material field have wide application space, can be applied to solid propellant rocket larynx lining,
Launcher shell coating, high-temperature resistance die and fixture and hot cathode emissive material etc..But ZrC/W composite material machineries are processed
Difficulty, the component of forming shape complexity not easy to be processed, limits its extensive use in Practical Project.Therefore, their own is realized
Or there is important application value with the connection of other materials.TZM alloys and ZrC-W composite materials are attached, Ke Yiti
High processing efficiency, the use scope for reducing processing cost, widening two kinds of materials.However, TZM and ZrC/W composite materials fusing point compared with
It is high, it is difficult to form liquid phase, common fusion welding, if the methods of TIG, MIG, Laser Welding, electron beam weldering are difficult to adapt to TZM and ZrC/
The connection of W composite materials.Soldering is the common method of dissimilar material joining, when metal is brazed with ceramic material, in solder
Often contain active element（Such as Ti, Zr, Nb, Hf, Ta）.
The applicant retrieves, and in correlative theses document, has Sichuan University Qingyuan Xu et al. to be carried out using Ti based alloys
The report of TZM alloys and graphite soldering research, Harbin Institute of Technology's Song Chang treasured et al. connect ZrC- using TiNi solder brazings
The report of SiC composite ceramics connectors there are no in published paper document and patent document about TZM alloys and ZrC/W
The related patents report being attached between itself or two kinds of materials between composite material..
Since TZM alloys and ZrC/W composite materials belong to high-temperature material, the hot-end component of Aeronautics and Astronautics is can be applied to,
Therefore jointing should have preferable high temperature resistance, therefore, the applicant select two kinds of materials of TiNi high-temp solders pair into
Row soldering connection.
Invention content
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of TiNi solder vacuum brazings that welding effect is good
The method of TZM alloys and ZrC/W composite materials.
A kind of method of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials, it is characterised in that use TiNi high
Temperature solder is as follows in vacuum condition soldering TZM alloys and ZrC/W composite materials：
Step 1: weighing the Ti of the Ni and 70-74% of 26-30% by mass percentage, sum of the two is equal to 100%, is smelted into
Paillon is made in alloy pig, obtains paillon solder；
Step 2: successively with 300 mesh, 500 mesh, 800 mesh, 1000 mesh SiC sand paper and diamond sand table respectively to TZM and
The position to be welded of ZrC/W carries out grinding process, obtains soldering base material；
Step 3: the paillon solder that step 1 and step 2 are obtained and soldering base material immerse in acetone, it is cleaned by ultrasonic
Then 15min ~ 20min uses absolute ethyl alcohol again, be cleaned by ultrasonic 5 ~ 10min, dries for use；
Step 4: the paillon solder that step 3 is obtained and soldering base material, are closed by TZM is from bottom to top sequentially sequentially placed
Gold, paillon solder and ZrC/W composite materials, then the graphite pressure that 2KPa pressure can be at least provided is placed on ZrC/W composite materials
Block forms component to be welded to limit displacement of the part to be welded in brazing process；
Step 5: the component to be welded obtained in step 4 is placed in vacuum brazing furnace, it is evacuated down to 5.0 × 10-3Pa is opened
Beginning heat temperature raising, heating rate are 20 DEG C/min；After temperature reaches 800 DEG C, it will heat up rate and be changed to 10 DEG C/min, be heated to
940 DEG C, keep the temperature 5 minutes；Brazing temperature is heated to as 1000 DEG C ~ 1080 DEG C with the rate of 5 DEG C/min again, heat preservation is no more than
20min ；Cooled down with the rate of 5 DEG C/min., when temperature reaches 200 DEG C, closes heating device；Furnace cooling, until room temperature；It is complete
At utilization TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials.
ZrC/W composite materials involved in the present invention are by the W of 30~50% ZrC and 50~70% by percent by volume
It is made through hot isostatic pressing, sum of the two is equal to 100%.
(foil) purity Ni of the present invention is not less than 99.5%（wt. %）, the purity of Ti (foil) is not less than 99.6%
（wt. %）.
Ni silks (foil), 70-74 parts of the Ti silks (foil) for weighing 26-30 parts in step 1 of the present invention by mass percentage, put
Enter in vacuum melting furnace crucible, is first evacuated down to 5.0 × 10-3After Pa, then applying argon gas, pass through electric arc melt back 10 in crucible
It is secondary to obtain alloy pig, with linear cutter at the thin slice of 0.5mm ~ 0.6mm thickness, the tow sides of thin slice are then subjected to mechanical mill
Light is finally polished into the TiNi paillons that thickness is 0.1mm with the SiC sand paper of 1000 mesh, obtains paillon solder.
With the heating rate of 5 DEG C/min in step 5 of the present invention, brazing temperature, brazing temperature difference are heated to from 940 DEG C
For 1000 DEG C or 1020 DEG C or 1040 DEG C or 1060 or 1080 DEG C progress soldering connections, soaking time is no more than 20min.
With the heating rate of 5 DEG C/min in step 5 of the present invention, be heated to from 940 DEG C 1020 DEG C of best brazing temperature into
Row soldering connection, heat preservation Best Times are 10min.
In the present invention in step 2 TZM alloys welding surface, successively with 300 mesh, 500 mesh, 800 mesh, the SiC of 1000 mesh
Sand paper is polished；By the welding surface of ZrC/W composite materials, successively with 300 mesh, 500 mesh, 800 mesh, the diamond of 1000 mesh
Sand table is polished；
The solder used in the present invention is free of precious metal, and material is extensive, economic and practical, and production method is simple, acquisition
TZM alloys are averaged soldering joint strength not less than 111MPa with ZrC/W composite materials, have good promotional value.
Description of the drawings
Fig. 1 is part to be welded layout drawing
Fig. 2 is the process flow chart of soldering,
Fig. 3 is to be brazed using Ti72Ni28, at 1020 DEG C, soaking time 10min, obtains the back scattering figure of soldered fitting
Piece.
Specific implementation mode
The invention will be further described below：
A kind of method of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials, it is characterised in that use TiNi high
Temperature solder is not less than 99.5% in vacuum condition soldering TZM alloys and ZrC/W composite materials, Ni silks or Ni foil purity,
The purity of Ti or Ti foils is by 30~50% ZrC and 50 by percent by volume not less than 99.6%, ZrC/W composite materials
~70% W makes through hot isostatic pressing, and sum of the two is equal to 100%.
It is as follows：
Step 1: weighing the Ni silks of 26-30% by mass percentage（Foil）With the Ti silks of 70-74%（Foil）, sum of the two etc.
In 100%, it is smelted into alloy pig, paillon is made, specifically weighs 26-30 parts of Ni silks by mass percentage（Foil）, 70-74 parts
Ti silks（Foil）, it is put into vacuum melting furnace crucible, is first evacuated down to 5X 10-3After Pa, then applying argon gas, pass through electricity in crucible
Arc melt back obtains alloy pig 10 times, with linear cutter at the thin slice of 0.5mm-0.6mm thickness, then by positive and negative the two of thin slice
Face carries out mechanical polishing, is finally polished into the TiNi paillons that thickness is 0.1mm with the SiC sand paper of 1000 mesh, obtains paillon solder.
Step 2: successively with 300 mesh, 500 mesh, 800 mesh, 1000 mesh SiC sand paper and diamond sand table respectively to TZM and
The position to be welded of ZrC/W carries out grinding process, obtains soldering base material；Specifically successively with 300 mesh, 500 mesh, 800 mesh,
The SiC sand paper of 1000 mesh is polished；By the welding surface of ZrC/W composite materials, successively with 300 mesh, 500 mesh, 800 mesh,
The diamond sand table of 1000 mesh is polished；
Step 3: the paillon solder that step 1 and step 2 are obtained and soldering base material immerse in acetone, it is cleaned by ultrasonic
Then 15min ~ 20min uses absolute ethyl alcohol again, be cleaned by ultrasonic 5 ~ 10min, dries for use；
Step 4: the paillon solder that step 3 is obtained and soldering base material, are closed by TZM is from bottom to top sequentially sequentially placed
Gold, paillon solder and ZrC/W composite materials, then the graphite pressure that 2KPa pressure can be at least provided is placed on ZrC/W composite materials
Block forms component to be welded to limit displacement of the part to be welded in brazing process；
Step 5: the component to be welded obtained in step 4 is placed in vacuum brazing furnace, it is evacuated down to 5.0X10-3Pa is opened
Beginning heat temperature raising, heating rate are 20 DEG C/min；After temperature reaches 800 DEG C, it will heat up rate and be changed to 10 DEG C/min, be heated to
940 DEG C, keep the temperature 5 minutes；Brazing temperature is heated to as 1000 DEG C ~ 1080 DEG C with the rate of 5 DEG C/min again, soaking time is no more than
20min ；When best brazing temperature is 1020 DEG C, soaking time 10min；Then cooled down with the rate of 5 DEG C/min., temperature
When reaching 200 DEG C, heating device is closed；Furnace cooling, until room temperature；Complete using TiNi solders vacuum brazing TZM alloys with
ZrC/W composite materials.
The solder used in the present invention is free of precious metal, and material is extensive, economic and practical, and production method is simple, acquisition
TZM alloys are averaged soldering joint strength not less than 111MPa with ZrC/W composite materials, have good promotional value.
Claims (5)
1. a kind of method of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials, it is characterised in that use TiNi high temperature
Solder is as follows in vacuum condition soldering TZM alloys and ZrC/W composite materials：
Step 1: weighing the Ti of the Ni and 70-74% of 26-30% by mass percentage, sum of the two is equal to 100%, is smelted into alloy
Paillon is made in ingot, obtains paillon solder；
Step 2: successively with 300 mesh, 500 mesh, 800 mesh, 1000 mesh SiC sand paper and diamond sand table respectively to TZM and ZrC/W
Position to be welded carry out grinding process, obtain soldering base material；
Step 3: the paillon solder that step 1 and step 2 are obtained and soldering base material immerse in acetone, ultrasonic cleaning 15min ~
Then 20min uses ethyl alcohol again, be cleaned by ultrasonic 5 ~ 10min, dries for use；
Step 4: the paillon solder that step 3 is obtained and soldering base material, by being from bottom to top sequentially sequentially placed TZM alloys, foil
Piece solder and ZrC/W composite materials, then the graphite briquetting that 2KPa pressure can be at least provided is placed on ZrC/W composite materials, with
Displacement of the part to be welded in brazing process is limited, component to be welded is formed；
Step 5: the component to be welded obtained in step 4 is placed in vacuum brazing furnace, it is evacuated down to 5.0 × 10-3Pa, is started
Heat temperature raising, heating rate are 20 DEG C/min；After temperature reaches 800 DEG C, it will heat up rate and be changed to 10 DEG C/min, be heated to
940 DEG C, keep the temperature 5 minutes；Brazing temperature is heated to as 1000 DEG C ~ 1080 DEG C with the rate of 5 DEG C/min again, heat preservation is no more than
20min；Cooled down with the rate of 5 DEG C/min, when temperature reaches 200 DEG C, closes heating device；Furnace cooling, until room temperature；It completes
Utilize TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials.
2. the method for a kind of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials according to claim 1,
It is characterized in that ZrC/W composite materials, by percent by volume is made through hot isostatic pressing by 30~50% ZrC and 50~70% W
It forms, sum of the two is equal to 100%.
3. the method for a kind of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials according to claim 1,
It is characterized in that in step 5, with the heating rate of 5 DEG C/min, brazing temperature, respectively 1000 DEG C or 1020 being heated to from 940 DEG C
DEG C or 1040 DEG C or 1060 DEG C or 1080 DEG C progress soldering connections, soaking time be no more than 20min.
4. the method for a kind of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials according to claim 1,
It is characterized in that in step 5, is heated to 1020 DEG C of brazing temperature, carry out soldering connection, soaking time 10min.
5. the method for a kind of TiNi solders vacuum brazing TZM alloys and ZrC/W composite materials according to claim 1,
It is characterized in that the welding surface of TZM alloys in step 2, is carried out successively with the SiC sand paper of 300 mesh, 500 mesh, 800 mesh, 1000 mesh
Polishing；By the welding surface of ZrC/W composite materials, carried out successively with the diamond sand table of 300 mesh, 500 mesh, 800 mesh, 1000 mesh
Polishing.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105598542B (en) * | 2016-01-21 | 2018-01-16 | 哈尔滨工业大学（威海） | Al in a kind of artificial retina2O3Ceramics and titanacycle soldering method for sealing |
| CN105834540B (en) * | 2016-05-24 | 2019-02-12 | 哈尔滨工业大学（威海） | A kind of method of Ti-Ni high-temp solder soldering TZM alloy |
| CN110303271B (en) * | 2019-07-23 | 2021-08-13 | 新余学院 | Titanium-nickel brazing filler metal for brazing TiB + TiC hybrid reinforced titanium-based composite material and nickel-based alloy and preparation and brazing methods |
| CN111515516B (en) * | 2020-04-30 | 2022-04-01 | 中国航发哈尔滨东安发动机有限公司 | Vacuum diffusion welding connection method of molybdenum-based high-temperature alloy |
| CN111822806A (en) * | 2020-07-10 | 2020-10-27 | 哈尔滨工业大学（威海） | NiZr brazing filler metal vacuum brazing Al0.3Method for CoCrFeNi high-entropy alloy |
| CN113070543B (en) * | 2021-05-20 | 2022-06-21 | 哈尔滨工业大学 | Method for brazing carbon material and nickel-based alloy by adopting Ag-Cr composite brazing filler metal |
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