CN105728929B - The nanodiffusion connection method of Cu and CuCrZr alloys - Google Patents
The nanodiffusion connection method of Cu and CuCrZr alloys Download PDFInfo
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- CN105728929B CN105728929B CN201610252059.9A CN201610252059A CN105728929B CN 105728929 B CN105728929 B CN 105728929B CN 201610252059 A CN201610252059 A CN 201610252059A CN 105728929 B CN105728929 B CN 105728929B
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/001—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by extrusion or drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B23K2103/12—Copper or alloys thereof
Abstract
The present invention relates to metal connection area and field of powder metallurgy, specially the nanodiffusion connection method of Cu and CuCrZr alloys；20~50 μm of Cu Mn alloy powders are prepared using mechanical alloying method；Using cladding process or sprawl method base material Cu and CuCrZr alloy wait on joint face deposit Cu Mn alloy powders；The diffusion that Cu with CuCrZr alloys are carried out using Cu Mn alloy powders as middle layer connects.The nanodiffusion connection method of Cu and CuCrZr alloys provided by the invention, Cu Mn alloy powders are alloy nano-powder, connection required temperature can be further decreased when as middle layer powder for spreading connection and improves diffusion connection speed, by adding Cu Mn middle layers, adjusting Joining Technology, it can realize that the nanodiffusion of Cu with CuCrZr alloys connects at a lower temperature, reduce damage and subsequent heat treatment process of the high temperature to CuCrZr alloy properties, reduces the cost of production.
Description
Technical field
The present invention relates to metal connection area and field of powder metallurgy, the specially nanodiffusion of Cu and CuCrZr alloys connects
Connect method.
Background technology
CuCrZr alloys are due to being that nuclear fusion stows with good thermal conductivity, elevated temperature strength, the ability of radioresistance injury reinforcing
Important heat sink material in setting；Tungsten (W) has the characteristics that the tritium anelasticity that fusing point is high, thermal shock resistance is good, low, is important
Facing plasma material.Realize that W and being reliably connected for CuCrZr alloys are prepared towards plasma source components (PFC)
Link.But when W and CuCrZr are directly connected to, since the difference of the two coefficient of thermal expansion is larger, big thermal stress is will produce, to
The generation for causing crackle, causes connecting elements to fail.Using soft Cu as slow suitable layer, it can be effectively improved W's and CuCrZr
Connection behavior.First by realizing the connection of W and Cu at a higher temperature, then by realizing that Cu and CuCrZr alloys are good
Metallurgical binding obtains W and CuCrZr alloy link blocks.
When carrying out the connection of Cu and CuCrZr using techniques such as general melting welding, solderings at present, connection temperature is excessively high, is easy
The crystal grain of CuCrZr alloys is caused to be grown up, secondary phase particle buildup is grown up so that the hardness and strength of CuCrZr alloys reduce, difficult
To meet engine requests of the PFC to heat sink material.And the defects of connection temperature is excessively high, and material easy tos produce crackle, deformation, in turn
Reduce the intensity of connector.Diffusion connection is a kind of Solid-phase welding means, relatively low (generally the 0.5 of base material fusing point of connection temperature
~0.8 times), it can effectively avoid damage of the high temperature to base material performance.But when Cu and CuCrZr directly spreads connection, required company
Jointing temp is high, and the intensity of fine copper is low, can weaken Cu/CuCrZr bonding strengths, is not suitable for large-scale application and height in production
The occasion of intensity requirement.
Invention content
In view of the above technical problems, the present invention provides a kind of nanodiffusion connection method of Cu and CuCrZr alloys, solves
Low temperature, high efficiency, the high intensity connectivity problem of Cu and CuCrZr alloys, the present invention prepare high-activity nano using mechanical alloying
Cu-Mn alloy powders, using nanodiffusion interconnection technique realize at low temperature the good metallurgical binding of Cu and CuCrZr alloys and
High bond strength.
In order to achieve the above objectives, scheme of the present invention is：
The nanodiffusion connection method of Cu and CuCrZr alloys, includes the following steps：
(1) the Cu-Mn alloy powders for using mechanical alloying method to prepare 20~50 μm；
(2) it uses cladding process or sprawls method and wait for deposition Cu-Mn alloyed powders on joint face in base material Cu and CuCrZr alloy
End；
(3) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide；Base material is put
Enter in acetone and absolute ethyl alcohol, is cleaned by ultrasonic；Using pressurization Diffusion bonding techniques, using Cu-Mn alloy powders as middle layer
The diffusion for carrying out Cu with CuCrZr alloys connects.Diffusion connection pressure is 5~50MPa, and connection temperature is 550 DEG C~850 DEG C, is protected
The warm time is 1h~5h, the Cu/CuCrZr connecting components of acquisition.After carrying out wire cutting to Cu/CuCrZr connecting components, room is carried out
Temperature stretches, and carries out SEM and EDS to linkage interface and detect.
Wherein, Cu-Mn alloy powders, by weight by following raw material：50~80 parts of Cu powder, Mn powder 20~50
Part.
After Cu powder and the mixing of Mn powder, argon gas is used to carry out high-energy ball milling for protective gas, ratio of grinding media to material is 5~10:1, rotating speed
For 300-500r/min, Ball-milling Time is 10-60 hours；After ball milling, powder slurries are placed in vacuum drying chamber, it is dry in 40 DEG C
Dry 20h；Powder after drying is sieved by 80 mesh sieve, is collected spare.
The nanodiffusion connection method of Cu and CuCrZr alloys provided by the invention, Cu-Mn alloy powders are Nanoalloy
Powder has the characteristics that fine size, activity is high, diffusivity is strong, can be into when as middle layer powder for spreading connection
One step, which reduces, to be connected required temperature and improves diffusion connection speed, by adding Cu-Mn middle layers, adjusting Joining Technology,
It can realize that the nanodiffusion of Cu with CuCrZr alloys connects at a lower temperature, reduce high temperature to CuCrZr alloy properties
Damage and subsequent heat treatment process, reduce the cost of production；The tensile strength of final connection sample up to 200MPa with
On, and the defects of linkage interface imporosity, crackle.
Specific implementation mode
It is described in conjunction with the embodiments the specific implementation mode of the present invention.
Embodiment 1
(1) it presses quality Cu powder 80g, Mn powder 20g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as middle layer alloy powder；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, makes to wait connecting
Base material surface it is as smooth as possible.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) the Cu-Mn alloy powders and absolute ethyl alcohol after drying ball milling are according to mass ratio 20:1 wiring solution-forming, in ultrasound
2min is stirred by ultrasonic in cleaning device, is allowed to the slurry that is uniformly dispersed, by the slurry configured using paint-on technique uniform deposition in Cu
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 30MPa, 800 DEG C, when heat preservation
Between be 3h, it is that 220MPa, linkage interface pore-free connect sample with the Cu/CuCrZr of crackle that may finally obtain tensile strength.
Embodiment 2
(1) it presses quality Cu powder 67g, Mn powder 33g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as Cu-Mn alloy powders；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, makes to wait connecting
Base material surface it is as smooth as possible.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) the Cu-Mn alloy powders and absolute ethyl alcohol after drying ball milling are according to mass ratio 20:1 wiring solution-forming, in ultrasound
2min is stirred by ultrasonic in cleaning device, is allowed to the slurry that is uniformly dispersed, by the slurry configured using paint-on technique uniform deposition in Cu
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 30MPa, 800 DEG C, when heat preservation
Between be 1h, it is that 220MPa, linkage interface pore-free connect sample with the Cu/CuCrZr of crackle that may finally obtain tensile strength.
Embodiment 3
(1) it presses quality Cu powder 50g, Mn powder 50g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as Cu-Mn alloy powders；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, makes to wait connecting
Surface it is as smooth as possible.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) by the good Cu-Mn alloy powders of ball milling and absolute ethyl alcohol according to mass ratio 20:1 wiring solution-forming is being cleaned by ultrasonic
3min is stirred by ultrasonic in instrument, is allowed to the slurry that is uniformly dispersed, by the slurry configured using paint-on technique uniform deposition in Cu and
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 30MPa, 800 DEG C, when heat preservation
Between be 4h, obtain tensile strength be 200MPa connection sample.
Embodiment 4
(1) it presses quality Cu powder 67g, Mn powder 33g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as Cu-Mn alloy powders；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, surface is made to use up
It may be smooth.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) by the good Cu-Mn alloy powders of ball milling and absolute ethyl alcohol according to mass ratio 20:1 wiring solution-forming is being cleaned by ultrasonic
3min is stirred by ultrasonic in instrument, is allowed to the slurry that is uniformly dispersed, by the slurry configured using paint-on technique uniform deposition in Cu and
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 10MPa, 650 DEG C, when heat preservation
Between be 4h, obtain tensile strength be 200MPa connection sample.
Embodiment 5
(1) it presses quality Cu powder 67g, Mn powder 33g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as Cu-Mn alloy powders；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, surface is made to use up
It may be smooth.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) by the good Cu-Mn alloy powders of ball milling and absolute ethyl alcohol according to mass ratio 20:1 wiring solution-forming is being cleaned by ultrasonic
3min is stirred by ultrasonic in instrument, is allowed to the slurry that is uniformly dispersed, by the slurry configured using paint-on technique uniform deposition in Cu and
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 40MPa, 850 DEG C, when heat preservation
Between be 3h, obtain tensile strength be 200MPa connection sample.
Embodiment 6
(1) it presses quality Cu powder 67g, Mn powder 33g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as Cu-Mn alloy powders；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, surface is made to use up
It may be smooth.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) by the good Cu-Mn alloy powders of ball milling and absolute ethyl alcohol according to mass ratio 20:1 wiring solution-forming is being cleaned by ultrasonic
3min is stirred by ultrasonic in instrument, is allowed to the slurry that is uniformly dispersed, by the slurry configured using sprawl technology uniform deposition in Cu and
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 10MPa, 750 DEG C, when heat preservation
Between be 2h, obtain tensile strength be 200MPa connection sample.
Embodiment 7
(1) it presses quality Cu powder 67g, Mn powder 33g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as middle layer alloy powder；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, surface is made to use up
It may be smooth.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) by the good Cu-Mn alloy powders of ball milling and absolute ethyl alcohol according to mass ratio 20:1 wiring solution-forming is being cleaned by ultrasonic
3min is stirred by ultrasonic in instrument, is allowed to the slurry that is uniformly dispersed, by the slurry configured using sprawl technology uniform deposition in Cu and
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection is diffused in 40MPa, 550 DEG C, when heat preservation
Between be 3h, obtain tensile strength be 200MPa connection sample.
Embodiment 8
(1) it presses quality Cu powder 67g, Mn powder 33g and matches powder, milling parameters are as follows：
Powder after high-energy ball milling is dried in vacuo, as middle layer alloy powder；
(2) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide, surface is made to use up
It may be smooth.Then sample is put into acetone and absolute ethyl alcohol, is cleaned by ultrasonic, drying is spare.
(3) by the good Cu-Mn alloy powders of ball milling and absolute ethyl alcohol according to mass ratio 20:1 wiring solution-forming is being cleaned by ultrasonic
3min is stirred by ultrasonic in instrument, is allowed to the slurry that is uniformly dispersed, by the slurry configured using sprawl technology uniform deposition in Cu and
In CuCrZr alloys.
(4) Cu and CuCrZr alloys are placed in pressurization connection stove, connection, soaking time is diffused in 5MPa, 850 DEG C
For 1h, the connection sample that tensile strength is 200MPa is obtained.
Claims (4)
- The nanodiffusion connection method of 1.Cu and CuCrZr alloys, which is characterized in that include the following steps：(1) the Cu-Mn alloy powders for using mechanical alloying method to prepare 20~50 μm；(2) it uses cladding process or sprawls method and wait for deposition Cu-Mn alloy powders on joint face in base material Cu and CuCrZr alloy；(3) base material Cu and CuCrZr alloy is waited for that joint face carries out mechanical grinding, removes surface film oxide；Base material is put into third In ketone and absolute ethyl alcohol, it is cleaned by ultrasonic；Using pressurization Diffusion bonding techniques, carried out by middle layer of Cu-Mn alloy powders The diffusion of Cu with CuCrZr alloys connects.
- 2. according to the nanodiffusion connection method for requiring Cu the and CuCrZr alloys described in 1, it is characterised in that：The Cu-Mn Alloy powder, by weight by following raw material：50~80 parts of Cu powder, 20~50 parts of Mn powder.
- 3. according to the nanodiffusion connection method for requiring Cu the and CuCrZr alloys described in 2, it is characterised in that：The Cu powder and After the mixing of Mn powder, argon gas is used to carry out high-energy ball milling for protective gas, ratio of grinding media to material is 5~10:1, rotating speed 300-500r/min, Ball-milling Time is 10-60 hours；After ball milling, powder slurries are placed in vacuum drying chamber, in 40 DEG C of dry 20h；After dry Powder by 80 mesh sieve be sieved, collect it is spare.
- 4. according to the nanodiffusion connection method for requiring 1 to 3 any one of them Cu and CuCrZr alloys, it is characterised in that：Step Suddenly the diffusion connection pressure described in (3) is 5~50MPa, and connection temperature is 550 DEG C~850 DEG C, and soaking time is 1h~5h.
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| CN109175382B (en) * | 2018-08-16 | 2020-05-22 | 西安理工大学 | Preparation method of CuCrZr-W bimetallic material |
| CN110576252A (en) * | 2019-04-13 | 2019-12-17 | 天津大学 | Oxygen-free copper and chromium zirconium copper medium and low temperature direct diffusion connection method |
| CN110306137B (en) * | 2019-06-28 | 2021-05-04 | 南京理工大学 | Preparation method of layered copper-chromium-zirconium-pure copper composite plate |
| CN114807795B (en) * | 2022-04-29 | 2023-02-28 | 中南大学 | Method for improving performance of brazed chromium-zirconium-copper alloy and chromium-zirconium-copper alloy workpiece |
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| JPS617062A (en) * | 1984-06-20 | 1986-01-13 | Sanyo Electric Co Ltd | Production of composite metallic plate |
| CN1030715A (en) * | 1987-07-23 | 1989-02-01 | 国营国光电子管总厂 | Contact-welding technology |
| CN1339613A (en) * | 2000-08-23 | 2002-03-13 | 中国科学院金属研究所 | Technological process for producing chromium-zirconium-copper rod material containing oxide dispersed and reinforced copper |
| CN101704160A (en) * | 2009-12-03 | 2010-05-12 | 西安交通大学 | Heterogeneous metal connecting method for tungsten, copper and alloy thereof |
| CN102626820A (en) * | 2012-04-17 | 2012-08-08 | 北京科技大学 | Method for vacuum hot-pressing welding of tungsten-diamond/copper-chromium zirconium copper |
| CN105057873A (en) * | 2015-07-20 | 2015-11-18 | 沈阳金昌蓝宇新材料股份有限公司 | Method for preparing CuW/Cu/CuCrZr integrated contact through electron beam welding |
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2016
- 2016-04-21 CN CN201610252059.9A patent/CN105728929B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS617062A (en) * | 1984-06-20 | 1986-01-13 | Sanyo Electric Co Ltd | Production of composite metallic plate |
| CN1030715A (en) * | 1987-07-23 | 1989-02-01 | 国营国光电子管总厂 | Contact-welding technology |
| CN1339613A (en) * | 2000-08-23 | 2002-03-13 | 中国科学院金属研究所 | Technological process for producing chromium-zirconium-copper rod material containing oxide dispersed and reinforced copper |
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| CN102626820A (en) * | 2012-04-17 | 2012-08-08 | 北京科技大学 | Method for vacuum hot-pressing welding of tungsten-diamond/copper-chromium zirconium copper |
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