CN108320834B - A kind of preparation method of Cu/C composite wire - Google Patents
A kind of preparation method of Cu/C composite wire Download PDFInfo
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- CN108320834B CN108320834B CN201810098293.XA CN201810098293A CN108320834B CN 108320834 B CN108320834 B CN 108320834B CN 201810098293 A CN201810098293 A CN 201810098293A CN 108320834 B CN108320834 B CN 108320834B
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Abstract
The present invention provides a kind of preparation method of Cu/C composite wire, this method are as follows: one, oxygen-free copper block is placed in vaccum sensitive stove carries out high melt；Two, high-temperature copper liquid body is slowly uniformly poured into the crucible equipped with graphene oxide colloid, water-bath cooling forms cylindrical Cu/C alloy pig；Three, the polishing pickling of Cu/C alloy pig is placed in oxygen-free copper jacket, carries out hot extrusion, obtains Cu/C alloy bar material；Four, plastic pulling processing is carried out to Cu/C alloy bar material in conjunction with heat treatment technics, finally obtains Cu/C composite wire.The Cu/C wire rod that the present invention prepares, microstructure is evenly distributed, the excellent characteristics for having had both graphene high intensity and high conductance significantly improves the electric conductivity and intensity of copper wires, overcomes in traditional Cu/C composite material, indiffusion between Cu/C, it does not combine, boundary strength is weak, the not high feature of intensity, and the process-cycle is substantially reduced, save cost.
Description
Technical field
The invention belongs to composite wire preparation technical fields, and in particular to a kind of preparation method of Cu/C composite wire.
Background technique
High-strength highly-conductive Cu-base composites are to integrate good physical and mechanical property as the nonferrous materials of the whole body,
Middle Deformation-processed Copper Based Composite is one of research hotspot and developing direction of copper alloy with high strength and high conductivity, such as Cu/Nb-Ag, Cu/Nb-
The composite materials such as Cu, Cu-Ag, Cu/Nb (winding method) and Cu-Ta are studied and prepare in succession, are widely used in height
Pulsed magnetic field conductor material, change-over switch, electric contactor, high current transfer wire and ELECTROMAGNETIC WEAPON etc..With copper-based composite wood
It constantly widens to material application field and its demand increases rapidly, it to high-strength highly-conductive Cu based composites performance requirement can be more next
It is higher.
Graphene is the two dimensional crystal for the only one layer of atomic thickness being made of carbon atom, is presently found most thin, strong
Degree maximum, a kind of strongest novel nano-material of electrical and thermal conductivity performance, 200 times more taller than best steel of breaking strength.
It has good elasticity again simultaneously, and stretch range can reach the 20% of own dimensions, and in addition resistivity ratio copper or silver are lower, is generation
The upper the smallest material of resistivity, is known as " dark fund ", is " king of new material ", and science even beforehand research will thoroughly change 21 generation
It records.Very likely start the subversiveness new technological industry revolution have swept the globe.
The technology of preparing of Cu/C composite material mainly has powder metallurgy method at present, and copper foil and graphene film are superimposed rolling,
There are also the casing processes etc. that graphene powder is packed into copper pipe, these processes have all prepared Cu/C composite wood accordingly
Material, but due to being hardly formed interface between copper and carbon, also indiffusion, interface bond strength is weaker, in moulding process, copper
It is synchronous with carbon deformation, cause wire rod core filaments to distort, discontinuity, easy fracture influences wire rod performance.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, providing, a kind of Cu/C is compound
The preparation method of wire rod.The preparation method can make to form good interface between copper and carbon, be also easy to spread, by by high temperature copper
Liquid castable is in the graphene oxide colloid of porous bulk state, and the copper liquid body of high temperature is by the graphene oxide glue of porous bulk state
Moisture evaporation in body, and graphene oxide is made to be reduced into graphene, the Cu/ that copper is uniformly mixed with graphene is obtained after cooling
C alloy ingot, the Cu/C alloy pig are loaded into oxygen-free copper jacket and the deformation of copper carbon are made uniformly through hot extrusion and drawing, the core filaments of wire rod
Distortionless, high-strength and highly conductive Cu/C composite wire.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of preparation method of Cu/C composite wire,
It is characterized in that, method includes the following steps:
High melt is carried out Step 1: oxygen-free copper block is placed in vaccum sensitive stove, obtains high-temperature copper liquid body；
Step 2: high-temperature copper liquid body obtained in step 1 is slowly uniformly poured into the oxidation stone equipped with porous bulk state
In the crucible of black alkene colloid, cylindrical Cu/C alloy pig is obtained after water-bath cooling, the diameter of Cu/C alloy pig is 60mm；It is porous swollen
The graphene oxide colloid of loose state is heated to molten state by graphene oxide solution and sticky state obtains；
Step 3: alloy pig obtained in polishing acid pickling step two, is subsequently placed in oxygen-free copper jacket, hot extrusion is carried out,
Obtain Cu/C alloy bar material；The outer diameter of the oxygen-free copper jacket is 65mm, wall thickness 3mm；
Step 4: to the progress drawing of Cu/C alloy bar material obtained in step 3, when the Cu/C alloy in drawing process
When the diameter of bar is drawn to 8mm~9mm, an annealing heat-treatment is carried out, when the diameter of the Cu/C alloy bar material is drawn to
When 5mm~6mm, then an annealing heat-treatment is carried out, finally obtains Cu/C composite wire.
The preparation method of above-mentioned a kind of Cu/C composite wire, which is characterized in that in oxygen-free copper block described in step 1
The mass content of copper is not less than 99.95%, and the mass content of copper is not less than 99.95% in oxygen-free copper jacket in step 3.
A kind of preparation method of above-mentioned Cu/C composite wire, which is characterized in that the temperature of high melt described in step 1
Degree is 1100 DEG C~1500 DEG C, soaking time 3h~6h.
The preparation method of above-mentioned a kind of Cu/C composite wire, which is characterized in that high-temperature copper liquid body described in step 2
Quality is the 10%~40% of the quality of the porous graphene colloid, and the high-temperature copper liquid body is poured in 5s~10s to earthenware
In crucible.
A kind of preparation method of above-mentioned Cu/C composite wire, which is characterized in that the temperature of hot extrusion described in step 3
It is 500 DEG C~700 DEG C, soaking time 3h~6h.
A kind of preparation method of above-mentioned Cu/C composite wire, which is characterized in that graphene oxide solution described in step 2
Concentration be 2mg/mL, heating temperature be 1200 DEG C, keep the temperature 5h.
A kind of preparation method of above-mentioned Cu/C composite wire, which is characterized in that annealing heat-treatment described in step 4
Temperature is 700 DEG C~900 DEG C, and the time is 3h~5h.
The preparation method of above-mentioned a kind of Cu/C composite wire, which is characterized in that the passage of drawing described in step 4 adds
Work rate is 5%~15%.
Compared with the prior art, the present invention has the following advantages:
1, the present invention compares present Cu/C composite wire preparation process, by the way that the high-temperature copper liquid body of complete melting is slow
It is uniformly poured into the crucible of the graphene oxide colloid equipped with porous bulk state, the moisture evaporation in graphene oxide colloid,
And graphene oxide is reduced into graphene under high temperature action, and graphene uniform be dispersed in copper pour mass, be reloaded into
In copper pipe, carries out hot extrusion and drawing process prepares Cu/C composite wire, preparation Cu/C composite material has Alloy solid solution
The characteristics of, one is mutually dissolved between the copper and carbon that make, is evenly distributed, Cu/C composite wire has had both the high intensity of graphene,
The characteristics of high conductance, avoids and is difficult the shortcomings that combining between copper and carbon, and the copper carbon interface bond strength made greatly improves, so that
The performance of Cu/C composite wire is further enhanced.
2, the present invention carries out hot extrusion to the oxygen-free copper jacket equipped with Cu/C alloy pig using Hot-extrusion, so that Cu/C
Copper carbon bond strength significantly improves the bond strength at the interface Cu/C in alloy pig.
3, the present invention prepares the mechanical property of Cu/C composite wire and electric property is greatly improved, and prepares week
Phase greatly shortens, save the cost.
Technical solution of the present invention is described in further detail below by drawings and examples.
Detailed description of the invention
Fig. 1 is the micro-structure diagram of Cu/C composite wire prepared by the embodiment of the present invention 1.
Fig. 2 is the micro-structure diagram of Cu/C composite wire prepared by comparative example 1 of the present invention.
Fig. 3 be Cu/C composite wire and the prior art preparation of different-diameter prepared by the embodiment of the present invention 1 Bu Tong directly
The mechanics mechanical property comparison diagram of the Cu/C composite wire of diameter.
Fig. 4 be Cu/C composite wire and the prior art preparation of different-diameter prepared by the embodiment of the present invention 1 Bu Tong directly
The mechanics electric property comparison diagram of the Cu/C composite wire of diameter.
Specific embodiment
Embodiment 1
The preparation method of the present embodiment the following steps are included:
High temperature melting is carried out under conditions of temperature is 1100 DEG C Step 1: oxygen-free copper block is placed in vaccum sensitive stove
Refining, the time of melting are 3h, the oxygen-free copper block complete melting；The mass content of copper is not less than in the oxygen-free copper block
99.95%；
Step 2: being slowly uniformly poured into the high-temperature copper liquid body of the complete melting in step 1 in smelting furnace equipped with porous
In the crucible of the graphene oxide colloid of bulk state, the structure of the graphene oxide colloid of the porous bulk state is similar to bee
Nest, water-bath cooling form cylindrical Cu/C alloy pig, and Cu/C alloy pig diameter is Φ 60mm, and the quality of the high-temperature copper liquid body is
The 10% of the porous graphene colloid quality, the time poured are 5s；The graphene oxide colloid of porous bulk state is by aoxidizing
Graphene solution is heated to molten state and sticky state obtains, and the concentration of the graphene oxide solution is 2mg/mL, heating temperature
It is 1200 DEG C, keeps the temperature 5h；
Step 3: successively polish and acid pickling step two in after the cylindrical Cu/C alloy pig that is cooled into, be placed in oxygen-free copper
In jacket, the outer diameter of the oxygen-free copper jacket is 65mm, and wall thickness 3mm, the both ends of oxygen-free copper jacket are using after electron beam soldering and sealing
Hot extrusion is carried out, obtains the Cu/C alloy bar material of Φ 20mm, temperature when hot extrusion is 500 DEG C, soaking time 3h；The nothing
The mass content of copper is 99.95% in oxygen copper-clad set；
Step 4: carrying out plastic pulling processing after Cu/C alloy bar material obtained in acid pickling step three, centre needs to carry out
Annealing eliminates processing hardening phenomenon, finally obtains the Cu/C composite wire of Φ 2mm, wherein work as Cu/ in drawing process
When the diameter of C composite wire is drawn to 8mm~9mm, the first time intermediate annealing process of 3h, road are carried out under conditions of 700 DEG C
Secondary working modulus is 10%~15%, when the diameter of Cu/C composite wire is drawn to 4mm~6mm, is carried out under conditions of 700 DEG C
Second of intermediate annealing process of 3h, the pass reduction of the drawing processing before first time intermediate annealing process is 10%~
15%, the pass reduction of the drawing processing after first time intermediate annealing process is 5%~10%.
In the present embodiment, the diameter of the Cu/C alloy bar material successively diameter after drawing in drawing process are as follows: 20mm,
18.5mm, 17.2mm, 16mm, 14.8mm, 13.7mm, 12.7mm, 11.8mm, 10.9mm, 10.05mm, 9.3mm, 8.6mm,
8.1mm, 7.8mm, 7.4mm, 7.05mm, 6.7mm, 6.4mm, 6.1mm, 5.8mm, 5.6mm, 5.4mm, 5.2mm, 5mm, 4.8mm,
4.6mm, 4.4mm, 4.2mm, 4mm, 3.8mm, 3.7mm, 3.6mm, 3.5mm, 3.4mm, 3.3mm, 3.2mm, 3.1mm, 3mm,
2.78mm, 2.59mm, 2.47mm, 2.29mm, 2.18mm, 2.0mm.
Comparative example 1
This comparative example prepare the method (i.e. mechanical powder method) of Cu/C composite wire the following steps are included:
Step 1: the graphene oxide colloid of porous bulk state is kept the temperature 6h under conditions of temperature is 500 DEG C, heat is carried out
Processing reduction, obtains graphene powder；The graphene oxide that the graphene oxide colloid of porous bulk state is 2mg/mL by concentration
Solution is heated to 1200 DEG C of heat preservation 5h, obtains the graphene oxide colloid of the porous bulk state of molten state and sticky state, the oxygen
The concentration of graphite alkene solution is 2mg/mL, and heating temperature is 1200 DEG C, keeps the temperature 5h；
Step 2: graphene oxide powder described in step 1 is fitted into the first oxygen-free copper pipe, it is compacted, then by the
The both ends of one oxygen-free copper pipe carry out vacuum electron beam soldering and sealing, obtain tubulature complex；The outer diameter of the oxygen-free copper jacket is 65mm,
Wall thickness is 3mm；
Step 3: carrying out the first drawing of multi-pass processing to tubulature complex described in step 2, cross-sectional shape is obtained
For the monofilamentary composite wire material of regular hexagon；The opposite side distance of the regular hexagon is 2.0mm；The passage of the first drawing processing adds
It is 2%~20% that work rate, which is in,；The first time drawing is processed as existing conventional drawing processing method；
Step 4: carrying out once-combined molding to monofilamentary composite wire material described in step 3,19 core composite wires, institute is made
The once-combined method that uses of forming is stated as clustered drawing, the detailed process of the clustered drawing are as follows: by monofilamentary composite wire
Material successively carries out scale, shearing, aligning and pickling processes, then assembles the monofilamentary composite wire material boundling after 19 pickling processes
Vacuum electron beam soldering and sealing is carried out in the second oxygen-free copper pipe, then by the both ends of the second oxygen-free copper pipe, obtains boundling jacket, it is then right
Boundling jacket carries out high-temperature heat treatment, and the boundling jacket after high-temperature heat treatment is carried out the second drawing of multi-pass processing later, is obtained
To 19 core composite wires；The temperature of the high-temperature heat treatment is 750 DEG C~850 DEG C, time of the high-temperature heat treatment be 10h~
The pass reduction of 14h, the second drawing processing are 2%~20%；Second drawing is processed as existing conventional drawing
Processing method；
Step 6: carrying out secondary composite molding to 19 core composite wires described in step 5, it is made 192Core composite wire,
The method that the secondary composite molding uses is identical as clustered drawing described in step 4；
Step 7: to described in step 6 192Core composite wire carries out composite molding three times, is made 193Core composite wire,
Finally obtain Cu/C composite wire；The method and clustered drawing phase described in step 4 that the composite molding three times uses
Together, last drawing obtains the Cu/C composite wire that diameter is Φ 2.0mm.
Fig. 1 is the micro-structure diagram of Cu/C composite wire prepared by the embodiment of the present invention 1.It can be seen from the figure that using
Cu/C composite wire manufactured in the present embodiment, surfacing is smooth, and crystal grain is tiny, is evenly distributed, and interface cohesion is fine and close, brilliant
Boundary's connectivity is good.
Fig. 2 is the micro-structure diagram of Cu/C composite wire prepared by comparative example 1.It can be seen from the figure that using mechanical powder
The wire rod of last method preparation, rough surface, crystal grain is bigger than normal, and size and distribution are irregular, and interface cohesion degree is poor, crystal boundary connectivity
Difference.
Fig. 3 is the Cu/C of the Cu/C composite wire of different-diameter prepared by embodiment 1 and the different-diameter of the preparation of comparative example 1
The mechanics mechanical property comparison diagram of composite wire, a indicates the Cu/C of the different-diameter prepared using the method for embodiment 1 in Fig. 3
Composite wire, b indicate the Cu/C composite wire of the different-diameter prepared using the method for comparative example 1, by comparison, it was found that, it uses
Wire rod prepared by the present invention, under same size condition, mechanics tensile strength is substantially better than the wire rod of mechanical powder method preparation, this
The wire rod that may be prepared with this method, interface bond strength is high, and crystal grain refinement is related.
Fig. 4 is the Cu/ of the Cu/C composite wire of different-diameter manufactured in the present embodiment and the different-diameter of the preparation of comparative example 1
The mechanics electric property comparison diagram of C composite wire, a indicates the Cu/C of the different-diameter prepared using the method for embodiment 1 in Fig. 4
Composite wire, b indicate the Cu/C composite wire of the different-diameter prepared using the method for comparative example 1, by comparison, it was found that, it uses
Wire rod prepared by the present invention, under same size condition, electric conductivity be substantially better than mechanical powder method preparation wire rod, this be because
For wire rod manufactured in the present embodiment, crystal grain is uniformly distributed, and dislocation and defect are few, and crystal boundary connectivity is more complete related.
Through detecting, the tensile strength of Cu/C composite wire manufactured in the present embodiment is 598MPa, is used compared to comparative example 1
The intensity of the same size wire rod of tradition machinery powder method preparation improves 10%, conductance 73%IACS, uses compared to comparative example 1
The conductance of the same size wire rod of tradition machinery powder method preparation improves 6%.
Embodiment 2
The preparation method of the present embodiment Cu/C composite wire the following steps are included:
High temperature melting is carried out under conditions of temperature is 1200 DEG C Step 1: oxygen-free copper block is placed in vaccum sensitive stove
Refining, the time of melting are 4.5h, the oxygen-free copper block complete melting；The mass content of copper is not small in the oxygen-free copper block
In 99.95%；
Step 2: being slowly uniformly poured into the high-temperature copper liquid body of the complete melting in step 1 in smelting furnace equipped with porous
In the crucible of the graphene oxide colloid of bulk state, the structure of the graphene oxide colloid of the porous bulk state is similar to bee
Nest, water-bath cooling form cylindrical Cu/C alloy pig, and Cu/C alloy pig diameter is Φ 60mm, and the quality of the high-temperature copper liquid body is
The 20% of the porous graphene colloid quality, the time poured are 6s；The graphene oxide colloid of porous bulk state is by aoxidizing
Graphene solution is heated to molten state and sticky state obtains, and the concentration of the graphene oxide solution is 2mg/mL, heating temperature
It is 1200 DEG C, keeps the temperature 5h；
Step 3: successively polish and acid pickling step two in after the cylindrical Cu/C alloy pig that is cooled into, be placed in oxygen-free copper
In jacket, the outer diameter of the oxygen-free copper jacket is 65mm, and wall thickness 3mm, the both ends of oxygen-free copper jacket are using after electron beam soldering and sealing
Hot extrusion is carried out, obtains the Cu/C alloy bar material of Φ 25mm, temperature when hot extrusion is 500 DEG C, soaking time 4h；The nothing
The mass content of copper is 99.95% in oxygen copper-clad set；
Step 4: carrying out plastic pulling processing after Cu/C alloy bar material obtained in acid pickling step three, centre needs to carry out
Annealing eliminates processing hardening phenomenon, finally obtains the Cu/C composite wire of Φ 3mm, wherein work as Cu/ in drawing process
When the diameter of C composite wire is drawn to 8mm~9mm, the first time intermediate annealing process of 3.5h is carried out under conditions of 700 DEG C,
Pass reduction be 10%~15%, when the diameter of Cu/C composite wire is drawn to 4mm~6mm, under conditions of 700 DEG C into
The pass reduction of second of intermediate annealing process of row 3.5h, the drawing processing before first time intermediate annealing process is 10%
~15%, the pass reduction of the drawing processing after first time intermediate annealing process is 5%~10%.
In the present embodiment, the diameter of the Cu/C alloy bar material successively diameter after drawing in drawing process are as follows: 25mm；
23.2mm；21.5mm；20mm；18.5mm；17.2mm；16mm；14.8mm；13.7mm；12.7mm；11.75mm；10.85mm；
10.05mm；9.3mm；8.6mm；8.2mm；7.9mm；7.6mm；7.3mm；7mm；6.7mm；6.4mm；6.1mm；5.85mm；
5.55mm；5.3mm；5.05mm；4.85mm；4.65mm；4.45mm；4.3mm；4.1mm；3.9mm；3.7mm；3.55mm；
3.4mm；3.25mm；3.1mm；3mm.
Cu/C composite wire manufactured in the present embodiment, through detecting: the tensile strength of material is 634MPa, compares existing machine
The intensity of the same size wire rod of tool powder method preparation improves 9%, conductance 80%IACS, compares existing tradition machinery powder
The conductance of the same size wire rod of method preparation improves 8%.
Embodiment 3
The preparation method of the present embodiment Cu/C composite wire the following steps are included:
High temperature melting is carried out under conditions of temperature is 1300 DEG C Step 1: oxygen-free copper block is placed in vaccum sensitive stove
Refining, the time of melting are 4.5h, the oxygen-free copper block complete melting；The mass content of copper is not small in the oxygen-free copper block
In 99.95%；
Step 2: being slowly uniformly poured into the high-temperature copper liquid body of the complete melting in step 1 in smelting furnace equipped with porous
In the crucible of the graphene oxide colloid of bulk state, the structure of the graphene oxide colloid of the porous bulk state is similar to bee
Nest, water-bath cooling form cylindrical Cu/C alloy pig, and Cu/C alloy pig diameter is Φ 60mm, and the quality of the high-temperature copper liquid body is
The 30% of the porous graphene colloid quality, the time poured are 7s；The graphene oxide colloid of porous bulk state is by aoxidizing
Graphene solution is heated to molten state and sticky state obtains, and the concentration of the graphene oxide solution is 2mg/mL, heating temperature
It is 1200 DEG C, keeps the temperature 5h；
Step 3: successively polish and acid pickling step two in after the cylindrical Cu/C alloy pig that is cooled into, be placed in oxygen-free copper
In jacket, the outer diameter of the oxygen-free copper jacket is 65mm, and wall thickness 3mm, the both ends of oxygen-free copper jacket are using after electron beam soldering and sealing
Hot extrusion is carried out, obtains the Cu/C alloy bar material of Φ 15mm, temperature when hot extrusion is 600 DEG C, soaking time 4.5h；It is described
The mass content of copper is 99.95% in oxygen-free copper jacket；
Step 4: carrying out plastic pulling processing after Cu/C alloy bar material obtained in acid pickling step three, centre needs to carry out
Annealing eliminates processing hardening phenomenon, finally obtains the Cu/C composite wire of Φ 4mm, wherein work as Cu/ in drawing process
When the diameter of C composite wire is drawn to 8mm~9mm, the first time intermediate annealing process of 4h, road are carried out under conditions of 800 DEG C
Secondary working modulus is 10%~15%, when the diameter of Cu/C composite wire is drawn to 4mm~6mm, is carried out under conditions of 800 DEG C
Second of intermediate annealing process of 4h, the pass reduction of the drawing processing before first time intermediate annealing process is 10%~
15%, the pass reduction of the drawing processing after first time intermediate annealing process is 5%~10%.
In the present embodiment, the diameter of the Cu/C alloy bar material successively diameter after drawing in drawing process are as follows: 15mm；
13.9mm；12.85mm；12mm；11.1mm；10.25mm；9.5mm；9mm；8.6mm；8.2mm；7.8mm；7.5mm；7.2mm；
6.9mm；6.6mm；6.3mm；6mm；5.75mm；5.5mm；5.25mm；5mm；4.75mm；4.55mm；4.35mm；4.15mm；
4mm。
Cu/C composite wire manufactured in the present embodiment, through detecting: the tensile strength of material is 697MPa, compares existing machine
The intensity of the same size wire rod of tool powder method preparation improves 11%, conductance 86%IACS, compares existing mechanical powder method
The conductance of the same size wire rod of preparation improves 10%.
Embodiment 4
The preparation method of the present embodiment Cu/C composite wire the following steps are included:
High temperature melting is carried out under conditions of temperature is 1400 DEG C Step 1: oxygen-free copper block is placed in vaccum sensitive stove
Refining, the time of melting are 5h, the oxygen-free copper block complete melting；The mass content of copper is not less than in the oxygen-free copper block
99.95%；
Step 2: being slowly uniformly poured into the high-temperature copper liquid body of the complete melting in step 1 in smelting furnace equipped with porous
In the crucible of the graphene oxide colloid of bulk state, the structure of the graphene oxide colloid of the porous bulk state is similar to bee
Nest, water-bath cooling form cylindrical Cu/C alloy pig, and Cu/C alloy pig diameter is Φ 60mm, and the quality of the high-temperature copper liquid body is
The 35% of the porous graphene colloid quality, the time poured are 9s；The graphene oxide colloid of porous bulk state is by aoxidizing
Graphene solution is heated to molten state and sticky state obtains, and the concentration of the graphene oxide solution is 2mg/mL, heating temperature
It is 1200 DEG C, keeps the temperature 5h；
Step 3: successively polish and acid pickling step two in after the cylindrical Cu/C alloy pig that is cooled into, be placed in oxygen-free copper
In jacket, the outer diameter of the oxygen-free copper jacket is 65mm, and wall thickness 3mm, the both ends of oxygen-free copper jacket are using after electron beam soldering and sealing
Hot extrusion is carried out, obtains the Cu/C alloy bar material of Φ 20mm, temperature when hot extrusion is 650 DEG C, soaking time 5h；The nothing
The mass content of copper is 99.95% in oxygen copper-clad set；
Step 4: carrying out plastic pulling processing after Cu/C alloy bar material obtained in acid pickling step three, centre needs to carry out
Annealing eliminates processing hardening phenomenon, finally obtains the Cu/C composite wire of Φ 2mm, wherein work as Cu/ in drawing process
When the diameter of C composite wire is drawn to 8mm~9mm, the first time intermediate annealing process of 4.5h is carried out under conditions of 850 DEG C,
Pass reduction be 10%~15%, when the diameter of Cu/C composite wire is drawn to 4mm~6mm, under conditions of 850 DEG C into
The pass reduction of second of intermediate annealing process of row 4.5h, the drawing processing before first time intermediate annealing process is 10%
~15%, the pass reduction of the drawing processing after first time intermediate annealing process is 5%~10%.
In the present embodiment, the diameter of the Cu/C alloy bar material successively diameter after drawing in drawing process are as follows: 20mm；
18.45mm；17.15mm；16mm；14.875mm；13.75mm；12.7mm；11.7mm；10.9mm；10.1mm；9.4mm；
8.95mm；8.5mm；8.1mm；7.7mm；7.4mm；7.05mm；6.7mm；6.4mm；6.1mm；5.8mm；5.6mm；5.4mm；mm；
5.2mm；5mm；4.8mm；4.6mm；4.4mm；4.2mm；4mm；3.8mm；3.7mm；3.6mm；3.5mm；3.4mm；3.3mm；
3.2mm；3.1mm；3mm.
Cu/C composite wire manufactured in the present embodiment, through detecting: the tensile strength of material is 767MPa, compares existing machine
The intensity of the same size wire rod of tool powder method preparation improves 12%, conductance 90%IACS, compares tradition machinery powder legal system
The conductance of standby same size wire rod improves 11%.
Embodiment 5
The preparation method of the present embodiment Cu/C composite wire the following steps are included:
High temperature melting is carried out under conditions of temperature is 1500 DEG C Step 1: oxygen-free copper block is placed in vaccum sensitive stove
Refining, the time of melting are 6h, the oxygen-free copper block complete melting；The mass content of copper is not less than in the oxygen-free copper block
99.95%；
Step 2: being slowly uniformly poured into the high-temperature copper liquid body of the complete melting in step 1 in smelting furnace equipped with porous
In the crucible of the graphene oxide colloid of bulk state, the structure of the graphene oxide colloid of the porous bulk state is similar to bee
Nest, water-bath cooling form cylindrical Cu/C alloy pig, and Cu/C alloy pig diameter is Φ 60mm, and the quality of the high-temperature copper liquid body is
The 40% of the porous graphene colloid quality, the time poured are 10s；The graphene oxide colloid of porous bulk state is by aoxidizing
Graphene solution is heated to molten state and sticky state obtains, and the concentration of the graphene oxide solution is 2mg/mL, heating temperature
It is 1200 DEG C, keeps the temperature 5h；
Step 3: successively polish and acid pickling step two in after the cylindrical Cu/C alloy pig that is cooled into, be placed in oxygen-free copper
In jacket, the outer diameter of the oxygen-free copper jacket is 65mm, and wall thickness 3mm, the both ends of oxygen-free copper jacket are using after electron beam soldering and sealing
Hot extrusion is carried out, obtains the Cu/C alloy bar material of Φ 20mm, temperature when hot extrusion is 700 DEG C, soaking time 6h；The nothing
The mass content of copper is 99.95% in oxygen copper-clad set；
Step 4: carrying out plastic pulling processing after Cu/C alloy bar material obtained in acid pickling step three, centre needs to carry out
Annealing eliminates processing hardening phenomenon, finally obtains the Cu/C composite wire of Φ 2mm, wherein work as Cu/ in drawing process
When the diameter of C composite wire is drawn to 8mm~9mm, the first time intermediate annealing process of 5h, road are carried out under conditions of 900 DEG C
Secondary working modulus is 10%~15%, when the diameter of Cu/C composite wire is drawn to 4mm~6mm, is carried out under conditions of 900 DEG C
Second of intermediate annealing process of 5h, the pass reduction of the drawing processing before first time intermediate annealing process is 10%~
15%, the pass reduction of the drawing processing after first time intermediate annealing process is 5%~10%.
In the present embodiment, the diameter of the Cu/C alloy bar material successively diameter after drawing in drawing process are as follows: 20mm；
18.45mm；17.18mm；15.9mm；14.7mm；13.65mm；12.6mm；11.7mm；10.8mm；10mm；9.25mm；8.7mm；
8.3mm；7.9mm；7.55mm；7.2mm；6.85mm；6.5mm；6.2mm；5.9mm；5.6mm；5.35mm；5.1mm；4.85mm；
4.65mm；4.45mm；4.3mm；4.1mm；3.9mm；3.7mm；3.55mm；3.4mm；3.25mm；3.1mm；3mm；2.9mm；
2.8mm；2.7mm；2.6mm；2.5mm；2.4mm；2.3mm；2.2mm；2.1mm；2mm.
Cu/C composite wire manufactured in the present embodiment, through detecting: the tensile strength of material is 793MPa, compares existing machine
The intensity of the same size wire rod of tool powder method preparation improves 14%, conductance 93%IACS, compares existing mechanical powder method
The conductance of the same size wire rod of preparation improves 13%.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way.It is all according to the present invention
Technical spirit any simple modification, change and equivalence change to the above embodiments, still fall within the technology of the present invention side
In the protection scope of case.
Claims (8)
1. a kind of preparation method of Cu/C composite wire, which is characterized in that method includes the following steps:
High melt is carried out Step 1: oxygen-free copper block is placed in vaccum sensitive stove, obtains high-temperature copper liquid body；
Step 2: high-temperature copper liquid body obtained in step 1 is slowly equably poured into the graphite oxide equipped with porous bulk state
Cylindrical Cu/C alloy pig is obtained in the crucible of alkene colloid, after water-bath cooling, the diameter of Cu/C alloy pig is 60mm；It is porous bulk
The graphene oxide colloid of state is heated to molten state by graphene oxide solution and sticky state obtains；
Step 3: successively polishing and acid pickling step two obtained in cylinder Cu/C alloy pig, be subsequently placed in oxygen-free copper jacket,
Hot extrusion is carried out after the both ends soldering and sealing of oxygen-free copper jacket, obtains Cu/C alloy bar material；The outer diameter of the oxygen-free copper jacket is 65mm,
Wall thickness is 3mm；
Step 4: carrying out drawing to Cu/C alloy bar material obtained in step 3 is processed into Cu/C composite wire, drawing is processed
In journey when the diameter of the Cu/C composite wire is drawn to 8mm~9mm, first time intermediate annealing heat treatment is carried out, when described
When the diameter of Cu/C composite wire is drawn to 5mm~6mm, then second of intermediate annealing heat treatment is carried out, it is multiple to finally obtain Cu/C
Zygonema material.
2. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that nothing described in step 1
The mass content of copper is not less than 99.95% in oxygen copper billet body；The mass content of copper is not small in oxygen-free copper jacket described in step 3
In 99.95%.
3. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that height described in step 1
The temperature of warm melting is 1100 DEG C~1500 DEG C, and soaking time is 3h~6h.
4. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that height described in step 2
The quality of warm copper liquid body is the 10%~40% of the porous graphene colloid quality, and the high-temperature copper liquid body is in 5s~10s
It pours into crucible.
5. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that heat described in step 3
The temperature of extruding is 500 DEG C~700 DEG C, soaking time 3h~6h.
6. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that aoxidized described in step 2
The concentration of graphene solution is 2mg/mL, and heating temperature is 1200 DEG C, keeps the temperature 5h.
7. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that in step 4 for the first time
The temperature of intermediate annealing heat treatment and second of intermediate annealing heat treatment is 700 DEG C~900 DEG C, and the time is 3h~5h.
8. a kind of preparation method of Cu/C composite wire according to claim 1, which is characterized in that drawn described in step 4
Pulling out the pass reduction in process is 5%~15%.
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| CN111349810B (en) * | 2018-12-24 | 2022-01-07 | 有研工程技术研究院有限公司 | Graphene/copper composite wire and preparation method thereof |
| CN110600161B (en) * | 2019-09-23 | 2020-11-03 | 西北有色金属研究院 | Preparation method of high-strength high-conductivity graphene-reinforced copper-silver composite wire |
| CN111799016B (en) * | 2020-07-21 | 2021-10-26 | 深圳市中金岭南科技有限公司 | Star-shaped distributed copper-silver alloy composite wire |
| CN112589110A (en) * | 2020-12-08 | 2021-04-02 | 北京飞利信信息安全技术有限公司 | Graphene-enhanced alloy composite material and preparation method thereof |
| CN114530291B (en) * | 2022-03-02 | 2024-01-12 | 中国科学院电工研究所 | Preparation method of copper/graphene composite wire |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592720A (en) * | 2012-03-14 | 2012-07-18 | 于庆文 | Non-metallic cable, manufacturing method and application thereof |
| CN104812470A (en) * | 2012-11-30 | 2015-07-29 | 英派尔科技开发有限公司 | Selective membrane supported on nanoporous graphene |
| CN106448799A (en) * | 2016-11-28 | 2017-02-22 | 西北有色金属研究院 | Preparation method for graphene-enhanced copper-niobium multi-core composite wire |
| CN106816423A (en) * | 2017-01-21 | 2017-06-09 | 山东科大鼎新电子科技有限公司 | A kind of Graphene bonding brass wire and preparation method thereof |
| CN106898433A (en) * | 2017-04-18 | 2017-06-27 | 中国地质大学（武汉） | Superconduction graphene composite film wire/belt material and cable |
| CN106920597A (en) * | 2017-03-11 | 2017-07-04 | 苏州思创源博电子科技有限公司 | A kind of preparation method of graphene coated niobium aluminium superconducting wire |
| CN107245590A (en) * | 2017-06-14 | 2017-10-13 | 上海电缆研究所有限公司 | Copper graphene composite material and preparation method |
| CN107578859A (en) * | 2017-09-05 | 2018-01-12 | 西北有色金属研究院 | A kind of preparation method of graphene/copper niobium Multicore composite material |
-
2018
- 2018-01-31 CN CN201810098293.XA patent/CN108320834B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592720A (en) * | 2012-03-14 | 2012-07-18 | 于庆文 | Non-metallic cable, manufacturing method and application thereof |
| CN104812470A (en) * | 2012-11-30 | 2015-07-29 | 英派尔科技开发有限公司 | Selective membrane supported on nanoporous graphene |
| CN106448799A (en) * | 2016-11-28 | 2017-02-22 | 西北有色金属研究院 | Preparation method for graphene-enhanced copper-niobium multi-core composite wire |
| CN106816423A (en) * | 2017-01-21 | 2017-06-09 | 山东科大鼎新电子科技有限公司 | A kind of Graphene bonding brass wire and preparation method thereof |
| CN106920597A (en) * | 2017-03-11 | 2017-07-04 | 苏州思创源博电子科技有限公司 | A kind of preparation method of graphene coated niobium aluminium superconducting wire |
| CN106898433A (en) * | 2017-04-18 | 2017-06-27 | 中国地质大学（武汉） | Superconduction graphene composite film wire/belt material and cable |
| CN107245590A (en) * | 2017-06-14 | 2017-10-13 | 上海电缆研究所有限公司 | Copper graphene composite material and preparation method |
| CN107578859A (en) * | 2017-09-05 | 2018-01-12 | 西北有色金属研究院 | A kind of preparation method of graphene/copper niobium Multicore composite material |
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