CN105869778B - A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material - Google Patents
A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material Download PDFInfo
- Publication number
- CN105869778B CN105869778B CN201610369202.2A CN201610369202A CN105869778B CN 105869778 B CN105869778 B CN 105869778B CN 201610369202 A CN201610369202 A CN 201610369202A CN 105869778 B CN105869778 B CN 105869778B
- Authority
- CN
- China
- Prior art keywords
- niobium
- copper
- copper niobium
- composite material
- multicore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
Abstract
The invention provides a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material, comprise the following steps：First, after stacking anaerobic copper foil and niobium paper tinsel neatly on non-oxygen copper bar, copper niobium coiling body is obtained, then the copper niobium coiling body is fitted into the first oxygen-free copper pipe, copper niobium is obtained after soldering and sealing and is combined jacket；2nd, cold isostatic compaction is carried out, copper niobium press-formed part is obtained；3rd, hot extrusion is processed, and obtains copper niobium extruding bar stock；4th, multi pass drawing processing is carried out, copper niobium single-core wire is obtained；5th, scale, shearing, aligning and pickling processes are carried out successively；6th, boundling assembling prepares copper niobium boundling jacket, then repeat step two to five, obtains high-strength high-conductivity copper niobium Multicore composite material.The present invention can reduce the starting processing dimension of niobium core filaments, the processing hardening for reducing material, shorten the process-cycle, be a kind of new method for preparing high-strength high-conductivity copper niobium Multicore composite material.
Description
Technical field
The invention belongs to high-performance copper based composites technical field, and in particular to a kind of high-strength high-conductivity copper niobium is more
The preparation method of core composite wire.
Background technology
The high conductance copper niobium composite of high intensity is the primary conductor material of impulse magnetic field, the strength of materials, conductivity
Fast lifting bring high-field pulse magnet record continuous refreshing.With developing rapidly to material for international pulse magnet technology
Material proposes harsher requirement；At the same time, the impulse magnetic field center of China is also showed in fast development in recent years
Go out bigger materials demand.
High-strength high-conductivity copper niobium composite wire is main by bundle drawing method and in-situ method technology of preparing at present, both by many
Secondary boundling assembling refinement internal core filaments, the final core filaments enhancing Cu-base composites obtained with nano-scale.Drawn with boundling
Pull out for technology, be combined by three to four multicore boundlings, macro-size niobium rod is machined to a nanometer chi by extruding and drawing processing
Very little niobium core filaments, the process-cycle is longer, complex technical process, to process equipment, and the requirement of machining accuracy is higher, and this both increases material
The final material cost and human cost of material.And the preparation of in-situ method copper niobium material needs the copper-niobium alloys melting by three to four times
Then one is equipped with to boundling Compound Machining twice, and wherein fusion process proposes high requirement to technology.Due to copper niobium two
Nearly 1000 DEG C of the fusing point difference of person's metal simple-substance, this has manufactured no small problem, it is necessary to accurately control technique to the melting of material
By multiple arc melting so as to obtain the copper-niobium alloys of niobium dendrite even dispersion distribution, follow-up boundling is then carried out again and is drawn
Pull out processing.
The characteristics of summarizing both above method is all that the complete nanometer for realizing internal niobium core filaments is processed by bundle drawing method
Fibrosis, pure bundle drawing method technology needs multiple boundling Compound Machining, and the process-cycle is long, and cost is high, and niobium pure metals are by grand
See dimensioned very big to nano-scale deflection, substantially, this all brings many problems to material hardening to the preparation of material；And
In-situ method boundling then needs the arc melting of three to four times, requires higher to smelting equipment and melting level professional technology, melts
The impurity that sweetening process is introduced also has considerable influence to the conductance of material.
Therefore, the initial size of niobium simple substance how is reduced, effectively the processing hardening of reduction material, it is compound in combination with boundling
The macroscopic view manufacture for realizing niobium nanometer core filaments enhancing carbon/carbon-copper composite material is the key of such material technology innovation.
The content of the invention
The technical problems to be solved by the invention are that niobium can be reduced there is provided one kind for above-mentioned the deficiencies in the prior art
The starting processing dimension of core filaments, the processing hardening for reducing material, the high-strength high-conductivity copper niobium multicore of shortening process-cycle are answered
The preparation method of zygonema material.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of high-strength high-conductivity copper niobium multicore
The preparation method of composite wire, it is characterised in that this method comprises the following steps：
Step 1: obtaining copper niobium coiling body, then on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
The copper niobium coiling body is fitted into the first oxygen-free copper pipe, the two ends of the first oxygen-free copper pipe are subjected to vacuum electron beam envelope afterwards
Weldering, obtains copper niobium and is combined jacket；The anaerobic copper foil is equal with the shape and size of niobium paper tinsel；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
Step 3: carrying out hot extrusion processing to the press-formed part of copper niobium described in step 2, copper niobium extruding bar stock is obtained；Institute
The extrusion ratio for stating hot extrusion processing is 7.34~10.56；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for just
The copper niobium single-core wire of hexagon；The opposite side distance of the regular hexagon is 1.8mm~2.0mm；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in into the second oxygen-free copper pipe
In, then by the two ends progress vacuum electron beam soldering and sealing of the second oxygen-free copper pipe, copper niobium boundling jacket is obtained, then by copper niobium boundling bag
The cold isostatic compaction technique described in repeat step two is covered, copper niobium multicore press-formed part is obtained, afterwards by copper niobium multicore pressure
Hot extrusion processing technology described in molding part repeat step three processed, obtains copper niobium multicore extruding bar stock, finally by copper niobium multicore
Extrude the multi pass drawing processing technology described in bar stock repeat step four, finally give tensile strength for 1020MPa~
1150MPa, electrical conductivity is 69%IACS~73%IACS high-strength high-conductivity copper niobium Multicore composite material.
A kind of preparation method of above-mentioned high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that step one
Described in non-oxygen copper bar be cylindrical bar, a diameter of 5mm~8mm of the non-oxygen copper bar, length is 120mm~180mm, institute
It is rectangle foil to state niobium paper tinsel and anaerobic copper foil, and the thickness of the niobium paper tinsel and anaerobic copper foil is 0.08mm~0.2mm, width
It is 120mm~180mm.
A kind of preparation method of above-mentioned high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that step one
Described in copper niobium be combined the volume of copper niobium coiling body in jacket and account for copper niobium is combined jacket cumulative volume 85%~95%.
A kind of preparation method of above-mentioned high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that step 2
Described in the pressure of isostatic cool pressing be 100MPa~150MPa, time of the isostatic cool pressing is 1h~1.5h.
A kind of preparation method of above-mentioned high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that step 3
Described in hot extrusion processing temperature be 600 DEG C~630 DEG C.
A kind of preparation method of above-mentioned high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that step 4
Described in drawing processing pass reduction be 15%.
A kind of preparation method of above-mentioned high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that step 6
Described in high-strength high-conductivity copper niobium Multicore composite material the volumn concentration of niobium be 19.4%~23.4%.
The present invention has advantages below compared with prior art：
1st, the present invention significantly reduces the process-cycle of material by foil winding plus a multicore boundling Compound Machining,
Reduce material cost.
2nd, the present invention slow down the deformation extent of niobium simple substance from niobium foil as parent material, it is to avoid niobium is in processing
During multiple hardening phenomenon appearance.
3rd, the niobium rod that the niobium foil in the present invention compares in bundle drawing method has bigger surface area (in comparable size
Under the conditions of), this is conducive to the quick increase of copper niobium interfacial area, has very great help to the strength enhancing of material.
In a word, high-strength high-conductivity copper niobium Multicore composite material technology of preparing proposed by the invention by niobium foil and
The winding assembling of copper foil material significantly reduces the initial size of niobium pure metals, reduces the change in size scope of material, shortens
The process-cycle of material, and realize by bundle drawing method technology the preparation of macro-scale copper-based nano composite.
The present invention is described in further detail with reference to embodiment.
Embodiment
Embodiment 1
The preparation method of the present embodiment high-strength high-conductivity copper niobium Multicore composite material comprises the following steps：
Step 1: obtaining copper niobium coiling body, then on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
By the copper niobium coiling body load external diameter be 65mm, wall thickness for 5mm the first oxygen-free copper pipe in, afterwards by the first oxygen-free copper pipe
Two ends carry out vacuum electron beam soldering and sealing, obtain copper niobium and are combined jacket；The non-oxygen copper bar is cylindrical bar, the non-oxygen copper bar
A diameter of 6mm, length is 170mm, and the niobium paper tinsel and anaerobic copper foil are rectangle foil, and the two is equal sized；It is described
The thickness of niobium paper tinsel and anaerobic copper foil is 0.2mm, and width is 170mm；The copper niobium is combined the body of copper niobium coiling body in jacket
Product accounts for 90% that copper niobium is combined jacket cumulative volume；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
The pressure of the isostatic cool pressing is 150MPa, and the time of the isostatic cool pressing is 1h；
Step 3: being carried out to the press-formed part of copper niobium described in step 2 after insulation 2h under conditions of temperature is 630 DEG C
Hot extrusion is processed, and obtains the copper niobium extruding bar stock that diameter of section is 24mm；The extrusion ratio of the hot extrusion processing is 7.34；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for just
The copper niobium single-core wire of hexagon；The opposite side distance of the regular hexagon is 2.00mm；Drawing die 30 is passed through in the drawing processing altogether
Block, the pass reduction of drawing processing is 15%；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in external diameter for 65mm, wall
Thickness carries out vacuum electron beam soldering and sealing in 5.5mm the second oxygen-free copper pipe, then by the two ends of the second oxygen-free copper pipe, obtains copper niobium collection
Beam jacket, then by the cold isostatic compaction technique described in copper niobium boundling jacket repeat step two, obtains the compacting of copper niobium multicore
Molding part, afterwards by the hot extrusion processing technology described in copper niobium multicore press-formed part repeat step three, obtains copper niobium multicore
Bar stock is extruded, copper niobium multicore is finally extruded into the multi pass drawing processing technology described in bar stock repeat step four, finally given
High-strength high-conductivity copper niobium Multicore composite material.
The volumn concentration of niobium is in high-strength high-conductivity copper niobium Multicore composite material prepared by the present embodiment
22.0%, the tensile strength of wire rod is 1020MPa, and electrical conductivity is 70%IACS.
Embodiment 2
The preparation method of the present embodiment high-strength high-conductivity copper niobium Multicore composite material comprises the following steps：
Step 1: obtaining copper niobium coiling body, then on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
By the copper niobium coiling body load external diameter be 65mm, wall thickness for 5mm the first oxygen-free copper pipe in, afterwards by the first oxygen-free copper pipe
Two ends carry out vacuum electron beam soldering and sealing, obtain copper niobium and are combined jacket；The non-oxygen copper bar is cylindrical bar, the non-oxygen copper bar
A diameter of 8mm, length is 180mm, and the niobium paper tinsel and anaerobic copper foil are rectangle foil, and the two is equal sized；It is described
The thickness of niobium paper tinsel and anaerobic copper foil is 0.15mm, and width is 180mm；The copper niobium is combined the body of copper niobium coiling body in jacket
Product accounts for 95% that copper niobium is combined jacket cumulative volume；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
The pressure of the isostatic cool pressing is 130MPa, and the time of the isostatic cool pressing is 1.5h；
Step 3: being carried out to the press-formed part of copper niobium described in step 2 after insulation 2h under conditions of temperature is 600 DEG C
Hot extrusion is processed, and obtains the copper niobium extruding bar stock that diameter of section is 22mm；The extrusion ratio of the hot extrusion processing is 8.73；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for just
The copper niobium single-core wire of hexagon；The opposite side distance of the regular hexagon is 1.98mm；Drawing die 29 is passed through in the drawing processing altogether
Block, the pass reduction of drawing processing is 15%；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in external diameter for 65mm, wall
Thickness carries out vacuum electron beam soldering and sealing in 7mm the second oxygen-free copper pipe, then by the two ends of the second oxygen-free copper pipe, obtains copper niobium boundling
Jacket, then by the cold isostatic compaction technique described in copper niobium boundling jacket repeat step two, obtains copper niobium multicore and is pressed into
Type part, afterwards by the hot extrusion processing technology described in copper niobium multicore press-formed part repeat step three, obtains copper niobium multicore and squeezes
Pressure bar base, finally extrudes the multi pass drawing processing technology described in bar stock repeat step four by copper niobium multicore, finally gives height
Intensity high-conductivity copper niobium Multicore composite material.
The volumn concentration of niobium is in high-strength high-conductivity copper niobium Multicore composite material prepared by the present embodiment
19.4%, the tensile strength of wire rod is 1098MPa, and electrical conductivity is 71%IACS.
Embodiment 3
The preparation method of the present embodiment high-strength high-conductivity copper niobium Multicore composite material comprises the following steps：
Step 1: obtaining copper niobium coiling body, then on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
By the copper niobium coiling body load external diameter be 65mm, wall thickness for 5mm the first oxygen-free copper pipe in, afterwards by the first oxygen-free copper pipe
Two ends carry out vacuum electron beam soldering and sealing, obtain copper niobium and are combined jacket；The non-oxygen copper bar is cylindrical bar, the non-oxygen copper bar
A diameter of 5mm, length is 120mm, and the niobium paper tinsel and anaerobic copper foil are rectangle foil, and the two is equal sized；It is described
The thickness of niobium paper tinsel and anaerobic copper foil is 0.1mm, and width is 120mm；The copper niobium is combined the body of copper niobium coiling body in jacket
Product accounts for 85% that copper niobium is combined jacket cumulative volume；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
The pressure of the isostatic cool pressing is 100MPa, and the time of the isostatic cool pressing is 1h；
Step 3: insulation 1.5h is laggard under conditions of temperature is 620 DEG C to the press-formed part of copper niobium described in step 2
Row hot extrusion is processed, and obtains the copper niobium extruding bar stock that diameter of section is 22mm；The extrusion ratio of the hot extrusion processing is 8.73；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for just
The copper niobium single-core wire of hexagon；The opposite side distance of the regular hexagon is 1.83mm；Drawing die 30 is passed through in the drawing processing altogether
Block, the pass reduction of drawing processing is 15%；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in external diameter for 65mm, wall
Thickness carries out vacuum electron beam soldering and sealing in 7.5mm the second oxygen-free copper pipe, then by the two ends of the second oxygen-free copper pipe, obtains copper niobium collection
Beam jacket, then by the cold isostatic compaction technique described in copper niobium boundling jacket repeat step two, obtains the compacting of copper niobium multicore
Molding part, afterwards by the hot extrusion processing technology described in copper niobium multicore press-formed part repeat step three, obtains copper niobium multicore
Bar stock is extruded, copper niobium multicore is finally extruded into the multi pass drawing processing technology described in bar stock repeat step four, finally given
High-strength high-conductivity copper niobium Multicore composite material.
The volumn concentration of niobium is in high-strength high-conductivity copper niobium Multicore composite material prepared by the present embodiment
19.7%, the tensile strength of wire rod is 1050MPa, and electrical conductivity is 73%IACS.
Embodiment 4
The preparation method of the present embodiment high-strength high-conductivity copper niobium Multicore composite material comprises the following steps：
Step 1: obtaining copper niobium coiling body, then on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
By the copper niobium coiling body load external diameter be 65mm, wall thickness for 6mm the first oxygen-free copper pipe in, afterwards by the first oxygen-free copper pipe
Two ends carry out vacuum electron beam soldering and sealing, obtain copper niobium and are combined jacket；The non-oxygen copper bar is cylindrical bar, the non-oxygen copper bar
A diameter of 5mm, length is 130mm, and the niobium paper tinsel and anaerobic copper foil are rectangle foil, and the two is equal sized；It is described
The thickness of niobium paper tinsel and anaerobic copper foil is 0.08mm, and width is 130mm；The copper niobium is combined the body of copper niobium coiling body in jacket
Product accounts for 90% that copper niobium is combined jacket cumulative volume；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
The pressure of the isostatic cool pressing is 150MPa, and the time of the isostatic cool pressing is 1h；
Step 3: being carried out to the press-formed part of copper niobium described in step 2 after insulation 2h under conditions of temperature is 630 DEG C
Hot extrusion is processed, and obtains the copper niobium extruding bar stock that diameter of section is 20mm；The extrusion ratio of the hot extrusion processing is 10.56；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for just
The copper niobium single-core wire of hexagon；The opposite side distance of the regular hexagon is 1.80mm；Drawing die 29 is passed through in the drawing processing altogether
Block, the pass reduction of drawing processing is 15%；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in external diameter for 65mm, wall
Thickness carries out vacuum electron beam soldering and sealing in 5mm the second oxygen-free copper pipe, then by the two ends of the second oxygen-free copper pipe, obtains copper niobium boundling
Jacket, then by the cold isostatic compaction technique described in copper niobium boundling jacket repeat step two, obtains copper niobium multicore and is pressed into
Type part, afterwards by the hot extrusion processing technology described in copper niobium multicore press-formed part repeat step three, obtains copper niobium multicore and squeezes
Pressure bar base, finally extrudes the multi pass drawing processing technology described in bar stock repeat step four by copper niobium multicore, finally gives height
Intensity high-conductivity copper niobium Multicore composite material.
The volumn concentration of niobium is in high-strength high-conductivity copper niobium Multicore composite material prepared by the present embodiment
21.2%, the tensile strength of wire rod is 1120MPa, and electrical conductivity is 70%IACS.
Embodiment 5
The preparation method of the present embodiment high-strength high-conductivity copper niobium Multicore composite material comprises the following steps：
Step 1: obtaining copper niobium coiling body, then on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
By the copper niobium coiling body load external diameter be 65mm, wall thickness for 5mm the first oxygen-free copper pipe in, afterwards by the first oxygen-free copper pipe
Two ends carry out vacuum electron beam soldering and sealing, obtain copper niobium and are combined jacket；The non-oxygen copper bar is cylindrical bar, the non-oxygen copper bar
A diameter of 5mm, length is 150mm, and the niobium paper tinsel and anaerobic copper foil are rectangle foil, and the two is equal sized；It is described
The thickness of niobium paper tinsel and anaerobic copper foil is 0.1mm, and width is 150mm；The copper niobium is combined the body of copper niobium coiling body in jacket
Product accounts for 95% that copper niobium is combined jacket cumulative volume；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
The pressure of the isostatic cool pressing is 110MPa, and the time of the isostatic cool pressing is 1.2h；
Step 3: being carried out to the press-formed part of copper niobium described in step 2 after insulation 2h under conditions of temperature is 630 DEG C
Hot extrusion is processed, and obtains the copper niobium extruding bar stock that diameter of section is 20mm；The extrusion ratio of the hot extrusion processing is 10.56；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for just
The copper niobium single-core wire of hexagon；The opposite side distance of the regular hexagon is 1.80mm；Drawing die 29 is passed through in the drawing processing altogether
Block, the pass reduction of drawing processing is 15%；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in external diameter for 65mm, wall
Thickness carries out vacuum electron beam soldering and sealing in 4.7mm the second oxygen-free copper pipe, then by the two ends of the second oxygen-free copper pipe, obtains copper niobium collection
Beam jacket, then by the cold isostatic compaction technique described in copper niobium boundling jacket repeat step two, obtains the compacting of copper niobium multicore
Molding part, afterwards by the hot extrusion processing technology described in copper niobium multicore press-formed part repeat step three, obtains copper niobium multicore
Bar stock is extruded, copper niobium multicore is finally extruded into the multi pass drawing processing technology described in bar stock repeat step four, finally given
High-strength high-conductivity copper niobium Multicore composite material.
The volumn concentration of niobium is in high-strength high-conductivity copper niobium Multicore composite material prepared by the present embodiment
23.4%, the tensile strength of wire rod is 1150MPa, and electrical conductivity is 69%IACS.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art is substantially made to above example, still fall within technical solution of the present invention
Protection domain.
Claims (7)
1. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material, it is characterised in that this method includes following
Step：
Step 1: copper niobium coiling body is obtained, then by institute on non-oxygen copper bar after anaerobic copper foil and niobium paper tinsel are stacked neatly
State copper niobium coiling body to be fitted into the first oxygen-free copper pipe, the two ends of the first oxygen-free copper pipe are subjected to vacuum electron beam soldering and sealing afterwards, obtained
Jacket is combined to copper niobium；The anaerobic copper foil is equal with the shape and size of niobium paper tinsel；
Step 2: being combined jacket to copper niobium described in step one carries out cold isostatic compaction, copper niobium press-formed part is obtained；
Step 3: carrying out hot extrusion processing to the press-formed part of copper niobium described in step 2, copper niobium extruding bar stock is obtained；The heat
The extrusion ratio of extrusion process is 7.34~10.56；
Step 4: carrying out multi pass drawing processing to the extruding bar stock of copper niobium described in step 3, cross sectional shape is obtained for positive six side
The copper niobium single-core wire of shape；The opposite side distance of the regular hexagon is 1.8mm~2.0mm；
Step 5: carrying out scale, shearing, aligning and pickling processes successively to the single-core wire of copper niobium described in step 4；
Step 6: the copper niobium single-core wire boundling after pickling processes in 547 step 5 is assembled in the second oxygen-free copper pipe, then
The two ends of second oxygen-free copper pipe are subjected to vacuum electron beam soldering and sealing, copper niobium boundling jacket are obtained, then by copper niobium boundling jacket weight
Cold isostatic compaction technique described in multiple step 2, obtains copper niobium multicore press-formed part, is afterwards pressed into copper niobium multicore
Hot extrusion processing technology described in type part repeat step three, obtains copper niobium multicore extruding bar stock, finally extrudes copper niobium multicore
Multi pass drawing processing technology described in bar stock repeat step four, finally gives tensile strength for 1020MPa~1150MPa,
Electrical conductivity is 69%IACS~73%IACS high-strength high-conductivity copper niobium Multicore composite material.
2. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material according to claim 1, its feature
It is, non-oxygen copper bar described in step one is cylindrical bar, a diameter of 5mm~8mm of the non-oxygen copper bar, length is
120mm~180mm, the niobium paper tinsel and anaerobic copper foil are rectangle foil, and the thickness of the niobium paper tinsel and anaerobic copper foil is
0.08mm~0.2mm, width is 120mm~180mm.
3. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material according to claim 1, its feature
Be, copper niobium described in step one be combined copper niobium coiling body in jacket volume account for copper niobium be combined jacket cumulative volume 85%~
95%.
4. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material according to claim 1, its feature
It is, the pressure of isostatic cool pressing described in step 2 is 100MPa~150MPa, and the time of the isostatic cool pressing is 1h~1.5h.
5. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material according to claim 1, its feature
It is, the temperature of the processing of hot extrusion described in step 3 is 600 DEG C~630 DEG C.
6. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material according to claim 1, its feature
It is, the pass reduction of the processing of drawing described in step 4 is 15%.
7. a kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material according to claim 1, its feature
Be, in the Multicore composite material of high-strength high-conductivity copper niobium described in step 6 the volumn concentration of niobium be 19.4%~
23.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369202.2A CN105869778B (en) | 2016-05-30 | 2016-05-30 | A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369202.2A CN105869778B (en) | 2016-05-30 | 2016-05-30 | A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105869778A CN105869778A (en) | 2016-08-17 |
| CN105869778B true CN105869778B (en) | 2017-09-19 |
Family
ID=56642784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610369202.2A Active CN105869778B (en) | 2016-05-30 | 2016-05-30 | A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105869778B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448799B (en) * | 2016-11-28 | 2018-01-30 | 西北有色金属研究院 | A kind of preparation method of graphene enhancing copper niobium Multicore composite material |
| CN107350304B (en) * | 2017-06-26 | 2018-09-14 | 江西理工大学 | A kind of high-strength copper niobium composite wire and preparation method thereof |
| CN107578859B (en) * | 2017-09-05 | 2019-05-21 | 西北有色金属研究院 | A kind of preparation method of graphene/copper niobium Multicore composite material |
| CN108213108B (en) * | 2017-12-29 | 2020-04-17 | 西北有色金属研究院 | Preparation method of high-strength high-conductivity copper-tantalum composite wire |
| CN110444337B (en) * | 2019-06-19 | 2021-01-01 | 西部超导材料科技股份有限公司 | Winding method Nb3Preparation method of Sn superconducting wire |
| CN111167878B (en) * | 2020-01-17 | 2021-07-13 | 陕西库博考尔金属材料有限公司 | Preparation method of copper core sealing composite wire |
| CN114649115B (en) * | 2022-05-23 | 2022-09-09 | 西部超导材料科技股份有限公司 | Preparation method of double-Sn-source type Nb3Sn superconducting wire |
| CN115083689B (en) * | 2022-07-04 | 2023-05-26 | 西北有色金属研究院 | Preparation method of reinforced Cu-Nb composite wire |
| CN115954157B (en) * | 2023-03-14 | 2023-06-20 | 西部超导材料科技股份有限公司 | Preparation method of multi-core NbTi superconducting wire |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0362420A (en) * | 1989-07-28 | 1991-03-18 | Toshiba Corp | Manufacture of compound superconductor |
| CN1944698A (en) * | 2006-10-24 | 2007-04-11 | 北京科技大学 | Super high heat conduction, low heat expansion coefficient composite material and its preparing method |
| CN102974643B (en) * | 2012-12-14 | 2015-04-15 | 西北有色金属研究院 | Preparation method of enhanced Cu-based composite wire of Nb tube |
| CN103606422B (en) * | 2013-12-08 | 2015-12-09 | 西北有色金属研究院 | A kind of preparation method of high-strength high-conductivity copper-silver multi-core composite wire |
| CN104022454B (en) * | 2014-06-24 | 2017-01-11 | 西部超导材料科技股份有限公司 | Preparation method of Nb3Al superconducting wire rod |
-
2016
- 2016-05-30 CN CN201610369202.2A patent/CN105869778B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105869778A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105869778B (en) | A kind of preparation method of high-strength high-conductivity copper niobium Multicore composite material | |
| CN106653154A (en) | High-strength aluminum-clad steel wire and production method thereof | |
| CN105880310B (en) | A kind of mould and forming method of the hollow magnesium alloy profiles of Ultra-fine Grained | |
| CN101249526A (en) | Copper covered aluminum wire forming technique | |
| CN104091651A (en) | Method for manufacturing multi-core MgB2 superconductive wires through extrusion technology | |
| CN106448799B (en) | A kind of preparation method of graphene enhancing copper niobium Multicore composite material | |
| CN106238494B (en) | A kind of production technology of high strength copper alloy contact line | |
| JP2008091867A (en) | Method for manufacturing permanent magnet, and permanent magnet | |
| CN103606422B (en) | A kind of preparation method of high-strength high-conductivity copper-silver multi-core composite wire | |
| CN102974643A (en) | Preparation method of enhanced Cu-based composite wire of Nb tube | |
| CN101239361B (en) | Manufacturing and processing method of D-type copper pipe | |
| CN102527768A (en) | Manufacturing method of copper-clad aluminum pipe | |
| CN107475554A (en) | A kind of production technology of microalloy copper busbar | |
| CN112186377A (en) | Copper-aluminum composite wire nose and preparation method thereof | |
| CN106903181A (en) | A kind of palisading type anode continuously extruded preparation method of sheath aluminium composite material | |
| CN106140863B (en) | A kind of production technology of copper tin alloy contact line | |
| CN107578859A (en) | A kind of preparation method of graphene/copper niobium Multicore composite material | |
| CN107042247B (en) | A kind of preparation method and extrusion die of U-Zr compo pipes | |
| KR101242249B1 (en) | Manufacturing method of rod with double layered tube structure and the welding tip manufactured by it | |
| EP3205441A1 (en) | Welding electrodes and methods of manufacturing same | |
| CN108213108B (en) | Preparation method of high-strength high-conductivity copper-tantalum composite wire | |
| CN203038763U (en) | Connection structure of transformer high-tension tapping-off lead wires and tool thereof | |
| CN101780490B (en) | Preparation process for titanium-copper composite wires | |
| CN104981040A (en) | Preparation method of titanium electrode containing metal mandrel difficult to melt | |
| CN105869716A (en) | Copper-coated aluminum composite flat micro wires and preparation method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |