CN109672064A - A kind of palldium alloy composite filament brush material and preparation method thereof - Google Patents
A kind of palldium alloy composite filament brush material and preparation method thereof Download PDFInfo
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- CN109672064A CN109672064A CN201811344442.2A CN201811344442A CN109672064A CN 109672064 A CN109672064 A CN 109672064A CN 201811344442 A CN201811344442 A CN 201811344442A CN 109672064 A CN109672064 A CN 109672064A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/10—Connectors or connections adapted for particular applications for dynamoelectric machines
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Abstract
The invention discloses a kind of palldium alloy composite filament brush material and preparation method thereof, the composite filament brush material is made of palldium alloy cladding, silver alloy or copper alloy core wire；The palldium alloy cladding is PdNi alloy, and the silver alloy core is AgCu alloy；The copper alloy core is CuBe, CuCoBe, CuNiBe, CuNiSn, CuAgFe alloy, and the palldium alloy cladding mass percent is 5~40%, and silver alloy or copper alloy core mass percent are 60~95%.The palldium alloy cladding silver alloy or copper alloy composite filament brush material that the present invention obtains, material cost substantially lowers compared with palldium alloy contact material；Compared with yellow gold contact material, corrosion resistance, wear-resisting property, contact stabilization etc. are significantly improved.
Description
Technical field
The invention belongs to metal function field of compound material, and in particular to a kind of palldium alloy composite filament brush material and its system
Preparation Method can be used for the contact material of low cost and high comprehensive performance, be in electrical contact especially suitable for sliding, such as brush.
Background technique
Palldium alloy has excellent properties as contact material, but expensive.Silver alloy has been answered as brush material
For various micromotors, but the disadvantages of sulfuration resistant, antioxygenic property are poor, not wear-resisting.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind for substituting above-mentioned palldium alloy and silver alloy brush material
And the palldium alloy composite filament brush material that sulfuration resistant, antioxygenic property are strong, wear-resisting property is good.
In order to solve the above technical problems, the technical scheme is that
A kind of palldium alloy composite filament brush material, the composite filament brush material is by palldium alloy cladding, silver alloy or copper
Alloy core wire is constituted；The palldium alloy cladding is PdNi alloy, and Ni mass percent is 2~25%, surplus Pd；The silver
Alloy core is AgCu alloy, and Cu mass percent is 6~50%, surplus Ag；The copper alloy core be CuBe, CuCoBe,
CuNiBe, CuNiSn, CuAgFe alloy, the palldium alloy cladding mass percent are 5~40%, silver alloy or copper alloy matter
Measuring percentage is 60~95%.
As improvement to above-mentioned technical proposal, the PdNi alloy cladding also add mass percent be respectively 0~
15% Cu, 0~70% Ag.
Also added in the AgCu alloy core as a preferred technical solution, mass percent be 0~5% Fe, Co,
It is any several in Ni, Sn, In, Zn element.
As a preferred technical solution, in the copper alloy core according to mass percent be respectively CuBe1.6~2.2%,
CuCo2~3%Be0.4~0.7%, CuNi1.5~2.5%Be0.3~0.6%, CuNi0~9%Sn2~8%, CuAg2~
10%Fe0~5%.
As improvement to above-mentioned technical proposal, also added in the silver alloy or copper alloy core percentage be 0.1~
1% La, Ce, Y rare earth element.
The palldium alloy cladding is as a preferred technical solution, with a thickness of 0.5~40 micron.
As improvement to above-mentioned technical proposal, the PdNi clads the Au that layer surface can also be 0.05~0.2 micron of plating
Cladding.
The present invention also provides a kind of methods for preparing the palldium alloy composite filament brush material, comprising steps of
1) it the above-mentioned palldium alloy of melting, silver alloy or copper alloy and casts in induction melting furnace of the vacuum degree higher than 0.1Pa
In graphite jig, palldium alloy ingot casting, silver or copper alloy casting ingot are respectively obtained；
2) palldium alloy and silver or copper alloy casting ingot are stripped off the skin on lathe and removes surface defect, then by the palladium
Alloy pig is squeezed into pipe at 500 DEG C~750 DEG C, and silver alloy or 500 DEG C~720 DEG C of copper alloy ingot are squeezed into alloy pole；
3) by the palldium alloy pipe, silver alloy or copper alloy pole surface acid-washing, oil removing, drying process, then will justify
The inner hole that stick is assemblied in pipe obtains the composite billet of palldium alloy pipe coated with silver or copper alloy pole, and fit-up gap is between pipe stick
0.03~0.2mm；
4) composite billet will be stated and carries out processing of swaging, deflection >=50% of swaging for the first time, by the composite billet after swaging through 500 DEG C
~700 DEG C of 1~2h of annealing processing；Then carry out it is secondary swage, deflection >=50%, obtain compound bar of swaging；
5) compound bar of swaging is handled through 500 DEG C~700 DEG C 1~2h of annealing, and is moved back through multi pass drawing and centre
Fire is handled, total deformation >=70% between twice annealing, is finally drawn to the composite filament that diameter is 0.1mm~0.8mm；
6) silver alloy obtained in mechanical composite algorithm or Copper alloy bar rolling are drawn into the silk of 0.2~1 diameter；
7) silver obtained or the pickling of copper alloy silk, oil removing are cleaned, is then closed in the electroplate liquid containing palladium, nickel using palladium nickel
Golden cladding plating；Argentiferous, copper palldium alloy coating in palladium nickel plating bath in proportion addition silver, copper ion is electroplated；
8) the thin layer gold on palldium alloy surface is carried out using auric sulfate electroplating technology.
The palladium-nickel alloy cladding plating in step 7) uses Pd (NH as a preferred technical solution,3)2SO3For the palladium of salt
Nickel electroplating technology obtains PdNi20 alloy layer, electroplating technological parameter are as follows: Pd (NH3)2SO440g/L, NISO445g/L, (N
H4)2SO450g/L, NH3H2O 90ml/L, 30 DEG C of organic brightener 15g/L, T, Dk 1A/d m, PH 8.5.
The manufacturing method of palldium alloy cladding silver alloy or copper alloy composite filament brush material provided by the invention includes machinery
Compound and composite electroplated two methods.Composite filament of the cladding thickness greater than 10 microns uses mechanical composite algorithm, cladding thickness≤10
Micron using composite electroplated method.
Compared with the prior art, the present invention has the following advantages:
The palldium alloy cladding silver alloy or copper alloy composite filament brush material that the present invention obtains, with palldium alloy contact material
Substantially lower compared to material cost；Compared with yellow gold contact material, corrosion resistance, wear-resisting property, contact stabilization
Etc. significantly improving.
By adopting the above-described technical solution, a kind of palldium alloy composite filament brush material and preparation method thereof, described compound
Silk brush material is made of palldium alloy cladding, silver alloy or copper alloy core wire；The palldium alloy cladding is PdNi alloy, institute
Stating silver alloy is AgCu alloy；The copper alloy core be CuBe, CuCoBe, CuNiBe, CuNiSn, CuAgThe alloy of Fe,
The palldium alloy cladding mass percent is 5~40, and silver alloy or copper alloy core mass percent are 60-95%；The present invention
The palldium alloy cladding silver alloy or copper alloy composite filament brush material of acquisition, material cost is big compared with palldium alloy contact material
Width lowers；Compared with yellow gold contact material, corrosion resistance, wear-resisting property, contact stabilization etc. are significantly improved.
Specific embodiment
A kind of palldium alloy composite filament brush material, the composite filament brush material is by palldium alloy cladding, silver alloy or copper
Alloy core wire is constituted；The palldium alloy cladding is PdNi alloy, and Ni mass percent is 2~25%, surplus Pd；The silver
Alloy core is AgCuAlloy, Cu mass percent are 6~50%, surplus Ag；The copper alloy core be CuBe, CuCoBe,
CuNiBe、CuNiSn、CuAgFe alloy, the palldium alloy cladding mass percent are 5~40%, silver alloy or copper alloy matter
Measuring percentage is 60~95%.
It is respectively 0~15% Cu, 0~70% Ag that the PdNi alloy cladding, which also adds mass percent,.
It is also added in the AgCu alloy core in Fe, Co, Ni, Sn, In, Zn element that mass percent is 0~5%
It is any several.
In the copper alloy core according to mass percent be respectively CuBe1.6~2.2%, CuCo2~3%Be0.4~
0.7%, CuNi1.5~2.5%Be0.3~0.6%, CuNi0~9%Sn2~8%, CuAg2~10%Fe0~5%.
In the silver alloy or copper alloy core also addition etc percentage be 0.1~1% La, Ce, Y rare earth element.
The palldium alloy cladding is with a thickness of 0.5~40 micron.
The PdNi clads the Au cladding that layer surface can also be 0.05~0.2 micron of plating.
A method of the palldium alloy composite filament brush material is prepared, comprising steps of
1) it the above-mentioned palldium alloy of melting, silver alloy or copper alloy and casts in induction melting furnace of the vacuum degree higher than 0.1Pa
In graphite jig, palldium alloy ingot casting, silver or copper alloy casting ingot are respectively obtained；
2) palldium alloy and silver or copper alloy casting ingot are stripped off the skin on lathe and removes surface defect, then by the palladium
Alloy pig is squeezed into pipe at 500 DEG C~750 DEG C, and silver alloy or 500 DEG C~720 DEG C of copper alloy ingot are squeezed into alloy pole；
3) by the palldium alloy pipe, silver alloy or copper alloy pole surface acid-washing, oil removing, drying process, then will justify
The inner hole that stick is assemblied in pipe obtains the composite billet of palldium alloy pipe coated with silver or copper alloy pole, and fit-up gap is between pipe stick
0.03~0.2mm；
4) composite billet will be stated and carries out processing of swaging, deflection >=50% of swaging for the first time, by the composite billet after swaging through 500 DEG C
~700 DEG C of 1~2h of annealing processing；Then carry out it is secondary swage, deflection >=50%, obtain compound bar of swaging；
5) compound bar of swaging is handled through 500 DEG C~700 DEG C 1~2h of annealing, and is moved back through multi pass drawing and centre
Fire is handled, total deformation >=70% between twice annealing, is finally drawn to the composite filament that diameter is 0.1mm~0.8mm；
6) silver alloy obtained in mechanical composite algorithm or Copper alloy bar rolling are drawn into the silk of 0.2~1 diameter；
7) silver obtained or the pickling of copper alloy silk, oil removing are cleaned, is then closed in the electroplate liquid containing palladium, nickel using palladium nickel
Golden cladding plating；Argentiferous, copper palldium alloy coating in palladium nickel plating bath in proportion addition silver, copper ion is electroplated；
8) the thin layer gold on palldium alloy surface is carried out using auric sulfate electroplating technology.
Palladium-nickel alloy cladding plating in step 7) uses Pd (NH3)2SO3For the palladium nickel electroplating technology of salt is obtained
PdNi20 alloy layer, electroplating technological parameter are as follows: Pd (NH3)2SO440g/L, NISO445g/L, (N H4)2SO450g/L,
NH3H2O 90ml/L, 30 DEG C of organic brightener 15g/L, T, Dk 1A/d m, PH 8.5.
The manufacturing method of palldium alloy cladding silver alloy or copper alloy composite filament brush material provided by the invention includes machinery
Compound and composite electroplated two methods.Composite filament of the cladding thickness greater than 10 microns uses mechanical composite algorithm, cladding thickness≤10
Micron using composite electroplated method.
Below with reference to embodiment, the present invention is further explained.In the following detailed description, it is only retouched by way of explanation
Certain exemplary embodiments of the invention are stated.Undoubtedly, those skilled in the art will recognize, without departing from
In the case where the spirit and scope of the present invention, the described embodiments may be modified in various different ways.Therefore,
Description is regarded as illustrative in nature, and is not intended to limit the scope of the claims.
Embodiment 1
A kind of palldium alloy cladding silver alloy composite filament brush material is closed by PdNi20 alloy cladding and AgCu24Fe0.5
Jin Xin is constituted.It is Ni20% that mass percent, which will be contained, and the raw material and contain Cu24% that surplus is Pd, Fe0.5%, surplus is Cu's
Raw material in vacuum induction melting furnace melting and pours in the graphite jig cast from respectively, respectively obtains 62 × 155mm of φ (diameter × height
Degree) PdNi20 alloy cast ingot AgCu24Fe0.5 alloy cast ingot；Both alloy cast ingots are stripped off the skin on lathe and remove surface
Defect obtains the alloy pig having a size of 60 × 150mm of φ；In the circle that PdNi20 alloy pig cross-section center drill straight diameter is φ 30
Shape through-hole obtains the alloy pipe stock of 60 × φ of φ, 30 × 15.5mm (outer diameter × internal diameter × wall thickness)；By alloy pipe stock in extruder
On be squeezed into the palladium-nickel alloy pipe having a size of 44 × φ of φ, 40 × 2mm (outer diameter × internal diameter × wall thickness)；AgCu24Fe0.5 is closed
Ingot is squeezed into the alloy pole that diameter is φ 40mm.The palladium-nickel alloy of 44 × φ of φ, 40 × 2mm (outer diameter × internal diameter × wall thickness)
The AgCu24Fe0.5 alloy pole that tubing and diameter are φ 40mm is through 700 DEG C of annealing 2h, then by the above-mentioned alloy of annealed state
Tubing and the pickling of alloy pole surfaces externally and internally, oil removing, drying process, then AgCu24Fe0.5 alloy pole is assembled in PdNi20
Alloy pipe inner hole, fit-up gap is 0.05mm between pipe stick, finally obtains the PdNi20 alloy pipe jacket that outer diameter is φ 44
The composite billet of AgCu24Fe0.1 alloy pole.Composite billet is subjected to processing of swaging, deformation amount controlling of swaging for the first time, will 85%
Composite billet after swaging is handled through 700 DEG C of annealing 2h；Then carry out it is secondary swage, deflection 60%, obtain diameter be φ
Then 10.5 compound bar of swaging carries out cold drawing to compound bar, at 2 700 DEG C of heat preservation 1h argon gas protection intermediate annealing
Reason, is finally drawn into the composite filament of diameter 0.3mm.
Embodiment 2
A kind of palldium alloy cladding copper alloy composite filament brush material is by PdCu10Ni10 alloy cladding and CuBe1.6-
2.2 alloy cores are constituted, and the preparation method is the same as that of Example 1 for composite filament.
Embodiment 3
A kind of palldium alloy cladding silver alloy composite filament brush material by PdAg20Ni10 alloy cladding and
Ag70Cu28Co0.5Zn1 alloy core is constituted, and the preparation method is the same as that of Example 1 for composite filament.
Embodiment 4
A kind of palladium-nickel alloy cladding yellow gold composite filament brush material by PdAg20Cu10Ni5 alloy cladding and
CuNi9Sn6 alloy core is constituted.The preparation method is the same as that of Example 1 for composite filament.
Embodiment 5
A kind of palladium-nickel alloy cladding yellow gold composite filament brush material by PdNi20 alloy cladding and
AgCu24Fe0.5 alloy core is constituted.First as described in Example 1 by AgCu24Fe0.5 alloy vacuum casting, squeeze, swage
The silk of diameter 0.35mm is made in drawing, and PdNi20 alloy cladding then is electroplated by above-mentioned electroplating technological parameter, further will
The composite filament that it is 0.25mm that composite electroplated silk, which is drawn,.
Embodiment 6
Pd alloy composite filament prepared by the embodiment 1 and embodiment 4 flash layer gold in auric sulfate plating solution, is had
The composite filament brush material of 0.1 micron of gold plate.
Embodiment 7
A method of the palldium alloy composite filament brush material is prepared, comprising steps of
1) it the above-mentioned palldium alloy of melting, silver alloy or copper alloy and casts in induction melting furnace of the vacuum degree higher than 0.1Pa
In graphite jig, palldium alloy ingot casting, silver alloy or copper alloy casting ingot are respectively obtained；
2) palldium alloy and silver or copper alloy casting ingot are stripped off the skin on lathe and removes surface defect, then by the palladium
Alloy pig is squeezed into pipe at 500 DEG C, and silver alloy or 500 DEG C of copper alloy ingot are squeezed into alloy pole；
3) by the palldium alloy pipe, silver or copper alloy pole surface acid-washing, oil removing, drying process, then pole filled
The inner hole for fitting over pipe obtains the composite billet of palldium alloy pipe coated with silver or copper alloy pole, and fit-up gap is between pipe stick
0.03mm；
4) composite billet will be stated and carries out processing of swaging, deflection >=50% of swaging for the first time, by the composite billet after swaging through 500 DEG C
The 1h that anneals is handled；Then carry out it is secondary swage, deflection >=50%, obtain compound bar of swaging；
5) compound bar of swaging is handled through 500 DEG C of annealing 1h, and through multi pass drawing and intermediate annealing process, twice
Total deformation >=70% between annealing is finally drawn to the composite filament that diameter is 0.1mm；
6) silver obtained in mechanical composite algorithm or Copper alloy bar rolling are drawn into the silk of 0.2 diameter；
7) silver alloy obtained or the pickling of copper alloy silk, oil removing are cleaned, palladium is then used in the electroplate liquid containing palladium, nickel
The plating of nickel alloy cladding；Argentiferous, copper palldium alloy coating in palladium nickel plating bath in proportion addition silver, copper ion is electroplated；
8) the thin layer gold on palldium alloy surface is carried out using auric sulfate electroplating technology.
Palladium-nickel alloy cladding plating in step 7) uses Pd (NH3)2SO3For the palladium nickel electroplating technology of salt is obtained
PdNi20 alloy layer, electroplating technological parameter are as follows: Pd (NH3)2SO440g/L, NISO445g/L, (N H4)2SO450g/L,
NH3H2O 90ml/L, 30 DEG C of organic brightener 15g/L, T, Dk 1A/d m, PH 8.5.
Embodiment 8
A method of the palldium alloy composite filament brush material is prepared, comprising steps of
1) it the above-mentioned palldium alloy of melting, silver alloy or copper alloy and casts in induction melting furnace of the vacuum degree higher than 0.1Pa
In graphite jig, palldium alloy ingot casting, silver or copper alloy casting ingot are respectively obtained；
2) palldium alloy and silver or copper alloy casting ingot are stripped off the skin on lathe and removes surface defect, then by the palladium
Alloy pig is squeezed into pipe at 650 DEG C, and silver alloy or 620 DEG C of copper alloy ingot are squeezed into alloy pole；
3) by the palldium alloy pipe, silver or copper alloy pole surface acid-washing, oil removing, drying process, then pole filled
The inner hole for fitting over pipe obtains the composite billet of palldium alloy pipe coated with silver or copper alloy pole, and fit-up gap is 0.1mm between pipe stick；
4) composite billet will be stated and carries out processing of swaging, deflection >=50% of swaging for the first time, by the composite billet after swaging through 600 DEG C
The 1.5h that anneals is handled；Then carry out it is secondary swage, deflection >=50%, obtain compound bar of swaging；
5) compound bar of swaging is handled through 600 DEG C of annealing 1.5h, and through multi pass drawing and intermediate annealing process, two
Total deformation >=70% between secondary annealing is finally drawn to the composite filament that diameter is 0.5mm；
6) silver alloy obtained in mechanical composite algorithm or Copper alloy bar rolling are drawn into the silk of 0.5 diameter；
7) silver obtained or the pickling of copper alloy silk, oil removing are cleaned, is then closed in the electroplate liquid containing palladium, nickel using palladium nickel
Golden cladding plating；Argentiferous, copper palldium alloy coating in palladium nickel plating bath in proportion addition silver, copper ion is electroplated；
8) the thin layer gold on palldium alloy surface is carried out using auric sulfate electroplating technology.
Palladium-nickel alloy cladding plating in step 7) uses Pd (NH3)2SO3For the palladium nickel electroplating technology of salt is obtained
PdNi20 alloy layer, electroplating technological parameter are as follows: Pd (NH3)2SO440g/L, NISO445g/L, (N H4)2SO450g/L,
NH3H2O 90ml/L, 30 DEG C of organic brightener 15g/L, T, Dk 1A/d m, PH 8.5.
Embodiment 9
A method of the palldium alloy composite filament brush material is prepared, comprising steps of
1) it the above-mentioned palldium alloy of melting, silver alloy or copper alloy and casts in induction melting furnace of the vacuum degree higher than 0.1Pa
In graphite jig, palldium alloy ingot casting, silver alloy or copper alloy casting ingot are respectively obtained；
2) palldium alloy and silver or copper alloy casting ingot are stripped off the skin on lathe and removes surface defect, then by the palladium
Alloy pig is squeezed into pipe at 750 DEG C, and silver or 720 DEG C of copper alloy ingot are squeezed into alloy pole；
3) by the palldium alloy pipe, silver or copper alloy pole surface acid-washing, oil removing, drying process, then pole filled
The inner hole for fitting over pipe obtains the composite billet of palldium alloy pipe coated with silver or copper alloy pole, and fit-up gap is 0.2mm between pipe stick；
4) composite billet will be stated and carries out processing of swaging, deflection >=50% of swaging for the first time, by the composite billet after swaging through 700 DEG C
The 2h that anneals is handled；Then carry out it is secondary swage, deflection >=50%, obtain compound bar of swaging；
5) compound bar of swaging is handled through 700 DEG C of annealing 2h, and through multi pass drawing and intermediate annealing process, twice
Total deformation >=70% between annealing is finally drawn to the composite filament that diameter is 0.8mm；
6) silver alloy obtained in mechanical composite algorithm or Copper alloy bar rolling are drawn into the silk of 1 diameter；
7) silver obtained or the pickling of copper alloy silk, oil removing are cleaned, is then closed in the electroplate liquid containing palladium, nickel using palladium nickel
Golden cladding plating；Argentiferous, copper palldium alloy coating in palladium nickel plating bath in proportion addition silver, copper ion is electroplated；
8) the thin layer gold on palldium alloy surface is carried out using auric sulfate electroplating technology.
Palladium-nickel alloy cladding plating in step 7) uses Pd (NH3)2SO3For the palladium nickel electroplating technology of salt is obtained
PdNi20 alloy layer, electroplating technological parameter are as follows: Pd (NH3)2SO440g/L, NISO445g/L, (N H4)2SO450g/L,
NH3H2O 90ml/L, 30 DEG C of organic brightener 15g/L, T, Dk 1A/d m, PH 8.5.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. a kind of palldium alloy composite filament brush material, it is characterised in that: the composite filament brush material is by palldium alloy cladding, silver
Alloy or copper alloy core wire are constituted；The palldium alloy cladding is PdNi alloy, and Ni mass percent is 2~25%, and surplus is
Pd；The silver alloy core is AgCu alloy, and Cu mass percent is 6~50%, surplus Ag；The copper alloy core be CuBe,
CuCoBe, CuNiBe, CuNiSn, CuAgFe alloy, the palldium alloy cladding mass percent be 5~40%, silver alloy or
Copper alloy mass percent is 60~95%.
2. a kind of palldium alloy composite filament brush material as described in claim 1, it is characterised in that: the PdNi alloy cladding is also
Adding mass percent is respectively 0~15% Cu, 0~70% Ag.
3. a kind of palldium alloy composite filament brush material as described in claim 1, it is characterised in that: also add in the AgCu alloy core
Add any several in Fe, Co, Ni, Sn, In, Zn element that mass percent is 0~5%.
4. a kind of palldium alloy composite filament brush material as described in claim 1, it is characterised in that: according to matter in the copper alloy core
Amount percentage be respectively CuBe1.6~2.2%, CuCo2~3%Be0.4~0.7%, CuNi1.5~2.5%Be0.3~
0.6%, CuNi0~9%Sn2~8%, CuAg2~10%Fe0~5%.
5. a kind of palldium alloy composite filament brush material as described in claim 1, it is characterised in that: the silver alloy or copper alloy core
In also addition etc percentage be 0.1~1% La, Ce, Y rare earth element.
6. a kind of palldium alloy composite filament brush material as described in claim 1, it is characterised in that: the palldium alloy clads thickness
Degree is 0.5~40 micron.
7. a kind of palldium alloy composite filament brush material as described in claim 1, it is characterised in that: the PdNi clads layer surface
Au cladding that can also be 0.05~0.2 micron of plating.
8. a kind of method for preparing palldium alloy composite filament brush material as claimed in any one of claims 1 to 7, feature exist
In, comprising steps of
1) it the above-mentioned palldium alloy of melting, silver alloy or copper alloy and pours in induction melting furnace of the vacuum degree higher than 0.1Pa and casts from stone
In black mold, palldium alloy ingot casting, silver or copper alloy casting ingot are respectively obtained；
2) palldium alloy and silver or copper alloy casting ingot are stripped off the skin on lathe and removes surface defect, then by the palldium alloy
Ingot is squeezed into pipe at 500 DEG C~750 DEG C, and silver alloy or 500 DEG C~720 DEG C of copper alloy ingot are squeezed into alloy pole；
3) by the palldium alloy pipe, silver or copper alloy pole surface acid-washing, oil removing, drying process, then pole is assembled and is existed
The inner hole of pipe obtains the composite billet of palldium alloy pipe coated with silver alloy or copper alloy pole, between pipe stick fit-up gap be 0.03~
0.2mm；
4) composite billet will be stated and carry out processing of swaging, deflection >=50% of swaging for the first time, by the composite billet after swaging through 500 DEG C~
700 DEG C of 1~2h of annealing processing；Then carry out it is secondary swage, deflection >=50%, obtain compound bar of swaging；
5) compound bar of swaging is handled through 500 DEG C~700 DEG C 1~2h of annealing, and through multi pass drawing and intermediate annealing at
It manages, total deformation >=70% between twice annealing, is finally drawn to the composite filament that diameter is 0.1mm~0.8mm；
6) silver obtained in mechanical composite algorithm or Copper alloy bar rolling are drawn into the silk of 0.2~1 diameter；
7) silver alloy obtained or the pickling of copper alloy silk, oil removing are cleaned, is then closed in the electroplate liquid containing palladium, nickel using palladium nickel
Golden cladding plating；Argentiferous, copper palldium alloy coating in palladium nickel plating bath in proportion addition silver, copper ion is electroplated；
8) the thin layer gold on palldium alloy surface is carried out using auric sulfate electroplating technology.
9. the method for preparing palldium alloy composite filament brush material as claimed in claim 8, it is characterised in that: the palladium in step 7)
The plating of nickel alloy cladding uses Pd (NH3)2SO3For the palladium nickel electroplating technology of salt is obtained PdNi20 alloy layer, electroplating technology ginseng
Number are as follows: Pd (NH3)2SO440g/L, NISO445g/L, (NH4)2SO450g/L, NH3H2O 90ml/L, organic brightener 15g/
30 DEG C of L, T, Dk 1A/d m, PH 8.5.
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| CN110483047A (en) * | 2019-08-24 | 2019-11-22 | 湖南长重机器股份有限公司 | A kind of wear-resisting carbon brush material of bucket wheel machine and preparation method thereof |
| CN110983147A (en) * | 2019-12-20 | 2020-04-10 | 有研亿金新材料有限公司 | High-strength palladium-based weak electrical contact material and preparation method thereof |
| CN114556720A (en) * | 2019-11-25 | 2022-05-27 | 特耐斯株式会社 | Metal graphite grounding brush using silver as main component and manufacturing method thereof |
| CN117026055A (en) * | 2023-10-09 | 2023-11-10 | 浙江金连接科技股份有限公司 | Palladium alloy for semiconductor chip test probe and preparation method thereof |
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| CN117026055B (en) * | 2023-10-09 | 2024-01-12 | 浙江金连接科技股份有限公司 | Palladium alloy for semiconductor chip test probe and preparation method thereof |
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