CN105428148B - The high-power compound electric connector of one kind and its processing technology - Google Patents
The high-power compound electric connector of one kind and its processing technology Download PDFInfo
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- CN105428148B CN105428148B CN201510809025.0A CN201510809025A CN105428148B CN 105428148 B CN105428148 B CN 105428148B CN 201510809025 A CN201510809025 A CN 201510809025A CN 105428148 B CN105428148 B CN 105428148B
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 16
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 30
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 27
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- 239000000956 alloy Substances 0.000 claims abstract description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 14
- 239000011651 chromium Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011701 zinc Substances 0.000 claims abstract description 10
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000000748 compression moulding Methods 0.000 claims description 24
- 229910052721 tungsten Inorganic materials 0.000 claims description 11
- 239000010937 tungsten Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims description 8
- 230000008595 infiltration Effects 0.000 claims description 8
- 238000001764 infiltration Methods 0.000 claims description 8
- 239000011812 mixed powder Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- DDVPIFNJTNKBAM-UHFFFAOYSA-N [Fe].[W].[Cu] Chemical compound [Fe].[W].[Cu] DDVPIFNJTNKBAM-UHFFFAOYSA-N 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000002386 leaching Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910017083 AlN Inorganic materials 0.000 claims description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 229910001145 Ferrotungsten Inorganic materials 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
- H01H11/048—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Contacts (AREA)
Abstract
The invention discloses a kind of high-power compound electric connector and its processing technologys, are prepared by the raw material of following parts by weight: 20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle, iron close 5~10 parts of alloy, 2~4 parts of aluminium, 2.1~5.2 parts of chromium, 35~60 parts of zinc, 5~10 parts of heat filling.The present invention uses two-layer compound sintering technology, has produced completely new copper ferrotungsten composite contact material, has important breakthrough in terms of the copper-based composite contact material preparation of tradition, products innovation is strong.The product resistance fusion welding and Burning corrosion resistance are good, compressive resistance is high, contact electrical endurance improves for 20%, mechanical life and contact wear-resisting property is improved.Production cost can be not only reduced, and reduces the welding cost of down-stream enterprise, meanwhile, for realizing that energy conservation and environmental protection, low-carbon economy have important social benefit.
Description
Technical field
The present invention relates to electrical contact material fields, and in particular to the high-power compound electric connector of one kind and its processing work
Skill.
Background technique
In vacuum circuit breaker, the requirement of many aspects is proposed to contact material, main there are three aspects: high electricity
It flows release property (electric current breaking capacity), discontinuous current characteristic (value of shutting off) and high current-carrying domestic animal property (electric conductivity).
The main silver-colored tungsten carbide material of material currently used for vacuum circuit breaker, Guillaume metal, copper-tungsten and chromiumcopper.
Different materials respectively have advantage and disadvantage, and silver-colored tungsten carbide material makees conductor material, expensive using noble silver；Guillaume metal tool
Have excellent, but electric current breaking capacity is undesirable；Although the good excellent breaking capacity of copper-tungsten tool and conductive power, discontinuous current
Characteristic (value of shutting off) is undesirable, and due to taking infiltration process, is easy to appear copper aggregation；Chromiumcopper material potential is big, but existing
Control of Impurities is more difficult in chromium material and contact material gas content is high, causes material property dispersibility high.
Summary of the invention
To solve the above problems, the present invention provides a kind of high-power compound electric connector and its processing technologys.
To achieve the above object, the technical scheme adopted by the invention is as follows:
The high-power compound electric connector of one kind and its processing technology, are prepared by the raw material of following parts by weight:
20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle, 5~10 parts of alloy of iron conjunction, aluminium 2~
4 parts, 2.1~5.2 parts of chromium, 35~60 parts of zinc, 5~10 parts of heat filling.
Further, the iron closes alloy as any four in silicon, manganese, chromium, vanadium, titanium, tungsten, molybdenum.
Further, the heat filling is aluminium oxide, magnesia, zinc oxide, aluminium nitride, boron nitride, silicon carbide by matter
Amount compares 2:2:1:1:1.
Further, include the following steps:
S1 weighs 20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle；Copper powder 20 is selected first
~30 parts, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle mixed between 3~6 μm by mesh in proportion respectively
It closes, then weighs and iron conjunction 5~10 parts of alloy, 2~4 parts of aluminium, 35~60 parts of 2.1~5.2 parts of chromium, zinc mixtures, copper powder weight is added
Content in the mixed powder is 10~22%；
S2 carries out mixed raw material powder heat treatment 2~4 hours at high temperature, and in 4.5~8.5 tons/square centimeter
Pressure under compression moulding carried out at high temperature again heat treatment 2~5 hours to being crushed after first time compression moulding, and
It is suppressed for the second time under the pressure of 4.6~6.8 tons/square centimeter；
S3 is carried out heat treatment 2~5 hours at high temperature again to being crushed after second of compression moulding, and 4.6~
It is suppressed for the third time under the pressure of 6.8 tons/square centimeter；
S4 is carried out under high temperature heat treatment 2~5 hours again to being crushed after third time compression moulding, and 6~9 tons/
It is suppressed for the 4th time under the pressure of square centimeter；It carries out obtaining copper-tungsten blank in preheating 1~2 hour under high temperature again；
Ensure green body after pre-burning, copper and tungsten carbide and tungsten particle have been under good wet face state, burn one to subsequent leaching
A fabulous inducing action；
S5 finally by ready iron close the blank after 5~10 parts of alloy, fine copper and pre-burning be sintered together, infiltration just
Obtain high-power hard copper tungsten iron composite electric contact material of the porosity less than 0.28%.
Further, the temperature of the heat treatment is 600~750 DEG C, and the time is 2~4h.
Further, the temperature of the pre-burning is 1100-1200 DEG C.
The present invention uses two-layer compound sintering technology, completely new copper ferrotungsten composite contact material has been produced, in traditional copper
Base composite contact material preparation aspect has important breakthrough, and products innovation is strong.The product resistance fusion welding and Burning corrosion resistance are good, pressure-resistant
Intensity is high, contact electrical endurance improves for 20%, mechanical life and contact wear-resisting property is improved.Production can not only be reduced
Cost, and reduce the welding cost of down-stream enterprise, meanwhile, for realizing that energy conservation and environmental protection, low-carbon economy have important society
It can benefit.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
It is described in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
The present invention is prepared by the raw material of following parts by weight:
20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle, 5~10 parts of alloy of iron conjunction, aluminium 2~
4 parts, 2.1~5.2 parts of chromium, 35~60 parts of zinc, 5~10 parts of heat filling.
The iron closes alloy as any four in silicon, manganese, chromium, vanadium, titanium, tungsten, molybdenum.
The heat filling is aluminium oxide, magnesia, zinc oxide, aluminium nitride, boron nitride, silicon carbide 2:2:1 in mass ratio:
1:1。
The high-power compound electric connector of one kind and its processing technology, include the following steps:
S1 weighs 20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle；Copper powder 20 is selected first
~30 parts, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle mixed between 3~6 μm by mesh in proportion respectively
It closes, then weighs and iron conjunction 5~10 parts of alloy, 2~4 parts of aluminium, 35~60 parts of 2.1~5.2 parts of chromium, zinc mixtures, copper powder weight is added
Content in the mixed powder is 10~22%；
S2 carries out mixed raw material powder heat treatment 2~4 hours at high temperature, and in 4.5~8.5 tons/square centimeter
Pressure under compression moulding carried out at high temperature again heat treatment 2~5 hours to being crushed after first time compression moulding, and
It is suppressed for the second time under the pressure of 4.6~6.8 tons/square centimeter；
S3 is carried out heat treatment 2~5 hours at high temperature again to being crushed after second of compression moulding, and 4.6~
It is suppressed for the third time under the pressure of 6.8 tons/square centimeter；
S4 is carried out under high temperature heat treatment 2~5 hours again to being crushed after third time compression moulding, and 6~9 tons/
It is suppressed for the 4th time under the pressure of square centimeter；It carries out obtaining copper-tungsten blank in preheating 1~2 hour under high temperature again；
Ensure green body after pre-burning, copper and tungsten carbide and tungsten particle have been under good wet face state, burn one to subsequent leaching
A fabulous inducing action；
S5 finally by ready iron close the blank after 5~10 parts of alloy, fine copper and pre-burning be sintered together, infiltration just
Obtain high-power hard copper tungsten iron composite electric contact material of the porosity less than 0.28%.
The temperature of the heat treatment is 600~750 DEG C, and the time is 2~4h.
The temperature of the pre-burning is 1100-1200 DEG C.
Embodiment 1:
S1 weighs 30 parts of copper powder, 40 parts of tungsten carbide, 35 parts of tungsten powder particle；First select 30 parts of copper powder, 40 parts of tungsten carbide,
35 parts of tungsten powder particle is mixed between 3~6 μm by mesh in proportion respectively, then weigh be added iron close 10 parts of alloy,
60 parts of 4 parts of aluminium, 5.2 parts of chromium, zinc mixtures, content of the copper powder weight in the mixed powder are 10~22%；
S2 carries out mixed raw material powder heat treatment 2~4 hours at high temperature, and in 4.5~8.5 tons/square centimeter
Pressure under compression moulding carried out at high temperature again heat treatment 2~5 hours to being crushed after first time compression moulding, and
It is suppressed for the second time under the pressure of 4.6~6.8 tons/square centimeter；
S3 is carried out heat treatment 2~5 hours at high temperature again to being crushed after second of compression moulding, and 4.6~
It is suppressed for the third time under the pressure of 6.8 tons/square centimeter；
S4 is carried out under high temperature heat treatment 2~5 hours again to being crushed after third time compression moulding, and 6~9 tons/
It is suppressed for the 4th time under the pressure of square centimeter；It carries out obtaining copper-tungsten blank in preheating 1~2 hour under high temperature again；
Ensure green body after pre-burning, copper and tungsten carbide and tungsten particle have been under good wet face state, burn one to subsequent leaching
A fabulous inducing action；
S5 finally by ready iron close the blank after 5 parts of alloy, fine copper and pre-burning be sintered together, infiltration must hole
High-power hard copper tungsten iron composite electric contact material of the gap rate less than 0.28%.
Embodiment 2:
S1 weighs 20 parts of copper powder, 10 parts of tungsten carbide, 25 parts of tungsten powder particle；20 parts of copper powder, tungsten carbide 10 are selected first
Part, 25 parts of tungsten powder particle are mixed between 3~6 μm by mesh in proportion respectively, then weigh and iron conjunction alloy 5 is added
35 parts of part, 2 parts of aluminium, 2.1 parts of chromium, zinc mixtures, content of the copper powder weight in the mixed powder are 10~22%；
S2 carries out mixed raw material powder heat treatment 2~4 hours at high temperature, and in 4.5~8.5 tons/square centimeter
Pressure under compression moulding carried out at high temperature again heat treatment 2~5 hours to being crushed after first time compression moulding, and
It is suppressed for the second time under the pressure of 4.6~6.8 tons/square centimeter；
S3 is carried out heat treatment 2~5 hours at high temperature again to being crushed after second of compression moulding, and 4.6~
It is suppressed for the third time under the pressure of 6.8 tons/square centimeter；
S4 is carried out under high temperature heat treatment 2~5 hours again to being crushed after third time compression moulding, and 6~9 tons/
It is suppressed for the 4th time under the pressure of square centimeter；It carries out obtaining copper-tungsten blank in preheating 1~2 hour under high temperature again；
Ensure green body after pre-burning, copper and tungsten carbide and tungsten particle have been under good wet face state, burn one to subsequent leaching
A fabulous inducing action；
S5 finally by ready iron close the blank after 10 parts of alloy, fine copper and pre-burning be sintered together, infiltration must
High-power hard copper tungsten iron composite electric contact material of the porosity less than 0.28%.
Embodiment 3:
S1 weighs 25 parts of copper powder, 10 parts of tungsten carbide, 35 parts of tungsten powder particle；25 parts of copper powder, tungsten carbide 10 are selected first
Part, 35 parts of tungsten powder particle are mixed between 3~6 μm by mesh in proportion respectively, then weigh and iron conjunction alloy 5 is added
60 parts of part, 2 parts of aluminium, 2.1 parts of chromium, zinc mixtures, content of the copper powder weight in the mixed powder are 10~22%；
S2 carries out mixed raw material powder heat treatment 2~4 hours at high temperature, and in 4.5~8.5 tons/square centimeter
Pressure under compression moulding carried out at high temperature again heat treatment 2~5 hours to being crushed after first time compression moulding, and
It is suppressed for the second time under the pressure of 4.6~6.8 tons/square centimeter；
S3 is carried out heat treatment 2~5 hours at high temperature again to being crushed after second of compression moulding, and 4.6~
It is suppressed for the third time under the pressure of 6.8 tons/square centimeter；
S4 is carried out under high temperature heat treatment 2~5 hours again to being crushed after third time compression moulding, and 6~9 tons/
It is suppressed for the 4th time under the pressure of square centimeter；It carries out obtaining copper-tungsten blank in preheating 1~2 hour under high temperature again；
Ensure green body after pre-burning, copper and tungsten carbide and tungsten particle have been under good wet face state, burn one to subsequent leaching
A fabulous inducing action；
S5 finally by ready iron close the blank after 8 parts of alloy, fine copper and pre-burning be sintered together, infiltration must hole
High-power hard copper tungsten iron composite electric contact material of the gap rate less than 0.28%.
The advantage of high-power compound electric connector:
1, the electrical contact material has the characteristics that hardness is high, wear resistance is good due to using iron to close alloy as substrate.
2, since material uses copper product, keep electric current breaking capacity, conductive capability and the electric current of the electrical contact of production disconnected
The comprehensive performances height such as continuous characteristic are improved；For material within the service life period, performance uniformity is high.
3, electrical switch structure is simplified using the contact material, eliminates the dispersibility of spring in switch, increases substantially
The reliability of component.
4, due to being combined into raw material using cheap copper, iron, the cost of electrical contact material is considerably reduced.
5, tungsten/tungsten carbide particle in material is controlled by the granulating process of innovation and to the meticulous selection of technological parameter
The distance between, solve the problems, such as that material difficult forming and infiltration are difficult, without adding sintering aid in entire sintering process.
6, ensure that copper fully penetrates into green body when material production, produces porosity less than 0.28% by the technique of innovation
Electrical contact material.
High-power hard copper ferrotungsten composite electrical contact processing technology points for attention:
1, the heat treatment carries out 2~4 hours at a temperature of 600~750 DEG C.
2, the pressure of the compacting is 4.5~8.5 tons/square centimeter.
3,1100~1200 DEG C of the temperature of the pre-burning, burn-in time are 1~2 hour.
4, the copper powder crosses 400 meshes, and the powder particle of tungsten carbide and tungsten is between 3~6 μm.
5, content of the copper powder weight in the mixed powder is 10~22%.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of processing technology of high-power compound electric connector, which is characterized in that by the raw material preparation of following parts by weight
At:
20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle, iron close 5~10 parts of alloy, 2~4 parts of aluminium,
2.1~5.2 parts of chromium, 35~60 parts of zinc, 5~10 parts of heat filling；
The processing technology of the above-mentioned high-power compound electric connector of one kind, includes the following steps:
S1 weighs 20~30 parts of copper powder, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle；Copper powder 20~30 is selected first
Part, 10~40 parts of tungsten carbide, 25~35 parts of tungsten powder particle are mixed between 3~6 μm by mesh in proportion respectively, then
It weighs and iron conjunction 5~10 parts of alloy, 2~4 parts of aluminium, 35~60 parts of 2.1~5.2 parts of chromium, zinc mixtures is added, copper powder weight is in institute
Stating the content in mixed powder is 10~22%；
S2 carries out mixed raw material powder heat treatment 2~4 hours at high temperature, and in the pressure of 4.5~8.5 tons/square centimeter
Compression moulding under power carries out heat treatment 2~5 hours at high temperature again to being crushed after first time compression moulding, and
It is suppressed for the second time under the pressure of 4.6~6.8 tons/square centimeter；
S3 is carried out heat treatment 2~5 hours, and to being crushed after second of compression moulding 4.6~6.8 at high temperature again
It is suppressed for the third time under the pressure of ton/square centimeter；
S4 is carried out under high temperature heat treatment 2~5 hours again to being crushed after third time compression moulding, and in 6~9 tons/square
Centimetre pressure under suppressed for the 4th time；It carries out obtaining copper-tungsten blank in preheating 1~2 hour under high temperature again；Ensure
After pre-burning, copper and tungsten carbide and tungsten particle have been under good wet face state green body, burn a pole to subsequent leaching
Good inducing action；
S5 finally by ready iron close the blank after 5~10 parts of alloy, fine copper and pre-burning be sintered together, infiltration must hole
High-power hard copper tungsten iron composite electric contact material of the gap rate less than 0.28%.
2. the processing technology of the high-power compound electric connector of one kind according to claim 1, which is characterized in that the iron
Conjunction alloy is silicon, manganese, chromium, vanadium, titanium, tungsten, any four in molybdenum.
3. the processing technology of the high-power compound electric connector of one kind according to claim 1, which is characterized in that described to lead
Hot filler is aluminium oxide, magnesia, zinc oxide, aluminium nitride, boron nitride, silicon carbide.
4. the processing technology of the high-power compound electric connector of one kind according to claim 1, which is characterized in that the heat
The temperature of processing is 600~750 DEG C, and the time is 2~4h.
5. the processing technology of the high-power compound electric connector of one kind according to claim 1, which is characterized in that described pre-
The temperature of burning is 1100-1200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809025.0A CN105428148B (en) | 2015-11-23 | 2015-11-23 | The high-power compound electric connector of one kind and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510809025.0A CN105428148B (en) | 2015-11-23 | 2015-11-23 | The high-power compound electric connector of one kind and its processing technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105428148A CN105428148A (en) | 2016-03-23 |
| CN105428148B true CN105428148B (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510809025.0A Active CN105428148B (en) | 2015-11-23 | 2015-11-23 | The high-power compound electric connector of one kind and its processing technology |
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| DE3911904A1 (en) * | 1988-04-16 | 1989-12-14 | Duerrwaechter E Dr Doduco | Powder-metallurgical process for producing a semifinished product for electric contacts from a silver-based composite with iron |
| JP3676365B2 (en) * | 1993-08-23 | 2005-07-27 | シーメンス アクチエンゲゼルシヤフト | Silver-based contact material, use of this type of contact material in a power switchgear and method for producing this contact material |
| CN102347158A (en) * | 2010-07-29 | 2012-02-08 | 蒋国泉 | Processing technique for high-power hard copper-tungsten-iron (Cu-W-Fe) compound electrical contact |
| CN102162045B (en) * | 2011-03-29 | 2013-04-03 | 温州银泰合金材料有限公司 | Electrical contact based on powdered copper and manufacturing process thereof |
| CN102426867B (en) * | 2011-08-25 | 2013-03-13 | 哈尔滨东大高新材料股份有限公司 | Whisker reinforced copper-based electrical contact material and preparation method thereof |
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