CN107419124A - A kind of preparation method for the type electrical contact material that is uniformly dispersed - Google Patents
A kind of preparation method for the type electrical contact material that is uniformly dispersed Download PDFInfo
- Publication number
- CN107419124A CN107419124A CN201710510735.2A CN201710510735A CN107419124A CN 107419124 A CN107419124 A CN 107419124A CN 201710510735 A CN201710510735 A CN 201710510735A CN 107419124 A CN107419124 A CN 107419124A
- Authority
- CN
- China
- Prior art keywords
- uniformly dispersed
- powder
- electrical contact
- contact material
- type electrical
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0042—Matrix based on low melting metals, Pb, Sn, In, Zn, Cd or alloys thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of preparation method for the type electrical contact material that is uniformly dispersed, belong to electrical alloy technical field of material.The present invention obtains dispersion liquid after stannic chloride is mixed into ultrasonic disperse with deionized water, it is mixed and centrifuged with oxalic acid solution, lower sediment is collected to be washed with deionized, dry, obtain granular precursor, and calcined and granules of stannic oxide is made, then by granules of stannic oxide, mixed after glass putty and the sieving of zinc powder mix grinding with absolute ethyl alcohol scattered, Washing of Filter Cake is collected after being centrifuged again, dry, mill powder after must washing, compacting and sinter molding in mould are put into after being carried out discharge process, through cooling down the type electrical contact material that must can be uniformly dispersed, the powder in type electrical contact material preparation process that is uniformly dispersed obtained by of the invention is uniformly dispersed, it is not easy to reunite, material has excellent mechanical performance and good electrical property after shaping, effectively extend height, the electric life of contact system in low-voltage electrical apparatus.
Description
Technical field
The invention discloses a kind of preparation method for the type electrical contact material that is uniformly dispersed, and belongs to electrical alloy material and prepares skill
Art field.
Background technology
High and low pressure electrical equipment is that the indispensable link of user terminal, high and low pressure electrical equipment one are delivered the power in power system
As be made up of contact system, sensing system, machine driven system etc., wherein, contact system is the most key, and contact is crucial
In key, and " heart " of electric equipment products.
Generally, high and low pressure electrical equipment requires that contact material has good conduction and thermal conductivity, excellent anti-melting welding and resistance to electricity
Horizontal arc reignition, low current-carrying and gas content, good chemical stability are not susceptible to when abrasiveness, disjunction high current and is resisted
Organic Pollution, good machining property and weldability.At present, metallic matrix silver, the copper in good conductivity are mainly passed through
Middle addition refractory metal, metal oxide etc. realize its function.Conventional Ag base contact materials include silver, nickelization silver, Agcdo,
Silver-colored tungsten, silver-colored tungsten carbide carbon etc..
The technique for preparing electrical contact material at present is mainly powder metallurgic method.Powder metallurgic method is generally divided into two steps：
1st step is to produce material powder and it is pre-processed, the 2nd step be use compressing or hydrostatic pressing after, it is sintered
Finished product is obtained by extruding, hot pressing or rolling afterwards.Wherein, it is a vital step to produce material powder and mixed powder, traditional
Powder processed, powder mixing method be mix powder machine with various mixed powder machine such as ball mills, V-type, taper mixes powder machine, spiral mixes powder machine etc., by powder
Or compound is mechanically admixed uniformly, and do not chemically react, the tiny raw material of particle diameter can be obtained using mechanical mix techniques
Powder, while the element added is easily controlled, can be right in the composition of interior adjustment alloy in a big way, and simple production process
Appointed condition is less demanding, can meet the requirement of batch production.But mechanical mix techniques mainly should there is also some drawbacks
Method, which exists, mixes the defects of uneven, powder is easily reunited, and severely impacts the mechanical performance and electrical property of electrical contact material.
With electrical equipment, the development of electronics industry, the requirement to electrical contact material is more harsh, and electricity prepared by existing process touches
Head material can not meet use demand, therefore, develop a kind of powder and be uniformly dispersed, be not easy to reunite, have preferable machine after shaping
The electrical contact material of tool performance and excellent electrical, has important practical significance.
The content of the invention
Present invention mainly solves technical problem：Used by for current electrical contact material there is mixing not in preparation technology
Uniformly, powder is easily reunited, and easily influences electrical contact material mechanical performance and the defects of electrical property, there is provided one kind is uniformly dispersed type electricity
The preparation method of contact material.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）In mass ratio 1:15, stannic chloride is added in deionized water, is stirred and ultrasonic disperse obtains dispersion liquid, by matter
Measure ratio 1:5,0.5mol/L oxalic acid solutions are added dropwise in dispersion liquid, after being added dropwise to complete, is stirred and stands, centrifuge
And lower sediment is collected, washing, dry granular precursor；
（2）Granular precursor is placed in Muffle furnace, calcining is incubated after drying, standing is cooled to room temperature, obtains granules of stannic oxide, press
Parts by weight meter, 45~50 parts of granules of stannic oxide, 35~40 parts of glass puttys and 10~15 parts of zinc powders are weighed respectively and are placed in ball grinder,
Ball milling, sieve to obtain mixing and ball milling powder；
（3）In mass ratio 1:10, mixing and ball milling powder is mixed with absolute ethyl alcohol, is stirred simultaneously ultrasonic disperse, centrifugation,
Filter cake is collected, is milled after scrubbed, dry, powder after must washing；
（4）Powder after washing is placed in crucible, crucible is placed under nanosecond pulse device, electric discharge device is placed in the moon of device
Pole surface, discharge process is carried out under nanosecond pulse power supply effect, disperse modified powder is obtained after standing, disperse modified powder is put
Compressing to be placed in Muffle furnace in mould, at 1100~1200 DEG C after 3~5h of heat preservation sintering, standing is cooled to room
Temperature, you can be prepared into one kind and be uniformly dispersed type electrical contact material.
Step（1）Described time for adding is 25~30min.
Step（2）Described drying temperature is 200~250 DEG C.
Step（2）Described insulation calcining heat is 500~550 DEG C.
Step（4）Described discharge process is：It is 25~30V to control pulse output voltage, pulse recurrence frequency is 1.5~
2.0kHz, 20~30s of discharge process.
The beneficial effects of the invention are as follows：
（1）The present invention is modified, when occurring due to pulsed discharge, electric discharge produces by Pulse Discharge Treatment to material surface
Energy deposition, material surface moment is integrated more highdensity electron beam and react therewith, a large amount of oxygen atoms are in material
Material surface is deposited, and is formed one layer of oxygenatedchemicals clad structure, is substantially reduced the reunion performance between material, effectively carry
The dispersive property of high material；
（2）The present invention is aoxidized to form zinc oxide material by zinc powder, and electrical contact material surface is wrapped by zinc oxide material
The adjustment of boundary and micro diffusion occur when covering modification, then passing through sintering, between two kinds of materials, to the hole of material surface
Effectively filled, reduce the specific surface area of material, so as to be effectively improved the dispersive property of material.
Embodiment
In mass ratio 1:15, stannic chloride is added in deionized water, is stirred and is placed in ultrasound point under 200~300W
10~15min of processing is dissipated, obtains dispersion liquid, in mass ratio 1:5,0.5mol/L oxalic acid solutions are added dropwise in dispersion liquid, control drop
It is 25~30min between added-time, after being added dropwise to complete, is stirred and stands 6~8h, then centrifuged under 3500~4000r/min
10~15min is separated, lower sediment is collected and is washed with deionized to cleaning solution and dried in neutrality, then at 100~110 DEG C
6~8h, granular precursor is prepared into, granular precursor is placed in Muffle furnace, 25~30min is dried at 200~250 DEG C,
500~550 DEG C, after 3~5h is calcined in insulation are warming up to by 5 DEG C/min again, standing is cooled to room temperature, obtains granules of stannic oxide, by weight
Number meter is measured, 45~50 parts of granules of stannic oxide, 35~40 parts of glass puttys and 10~15 parts of zinc powders is weighed respectively and is placed in ball grinder,
Under 250~300r/min after 3~5h of ball milling, cross 200 mesh sieves and obtain mixing and ball milling powder, in mass ratio 1:10, by mixing and ball milling powder
End mixes with absolute ethyl alcohol, and mixing is stirred at room temperature and is placed in 10~15min of ultrasonic disperse under 200~300W, then 1500
Centrifuged under~3000r/min, collect filter cake and be washed with deionized 3~5 times, powder after must washing of being milled after vacuum drying
End, powder after washing is placed in crucible, crucible is placed under nanosecond pulse device, electric discharge device is placed in the negative electrode table of device
Face, discharge process is carried out under nanosecond pulse power supply effect, it is 25~30V to control pulse output voltage, and pulse recurrence frequency is
After 1.5~2.0kHz, 20~30s of processing to be discharged, 25~30min is stood, disperse modified powder is obtained, disperse modified powder is put
Compressing to be placed in Muffle furnace in mould, at 1100~1200 DEG C after 3~5h of heat preservation sintering, standing is cooled to room
Temperature, you can be prepared into one kind and be uniformly dispersed type electrical contact material.
Example 1
In mass ratio 1:15, stannic chloride is added in deionized water, is stirred and is placed in ultrasonic disperse processing under 200W
10min, obtain dispersion liquid, in mass ratio 1:5,0.5mol/L oxalic acid solutions are added dropwise in dispersion liquid, control the time for adding to be
25min, after being added dropwise to complete, it is stirred and stands 6h, then 10min is centrifuged under 3500r/min, collects lower sediment
And be washed with deionized to cleaning solution in neutrality, then 6h is dried at 100 DEG C, granular precursor is prepared into, by presoma
Grain is placed in Muffle furnace, and 25min is dried at 200 DEG C, then is warming up to 500 DEG C, after 3h is calcined in insulation by 5 DEG C/min, is stood cold
But to room temperature, granules of stannic oxide is obtained, is counted in parts by weight, weigh 45 parts of granules of stannic oxide, 35 parts of glass puttys and 10 parts of zinc powders respectively
It is placed in ball grinder, under 250r/min after ball milling 3h, crosses 200 mesh sieves and obtain mixing and ball milling powder, in mass ratio 1:10, it will mix
Ball-milled powder mixes with absolute ethyl alcohol, and mixing is stirred at room temperature and is placed in ultrasonic disperse 10min under 200W, then in 1500r/
Centrifuged under min, collect filter cake and be washed with deionized 3 times, powder after must washing of being milled after vacuum drying, after washing
Powder is placed in crucible, and crucible is placed under nanosecond pulse device, and electric discharge device is placed in the cathode surface of device, in nanosecond arteries and veins
The lower progress discharge process of power supply effect is rushed, it is 25V to control pulse output voltage, pulse recurrence frequency 1.5kHz, place to be discharged
After managing 20s, 25min is stood, disperse modified powder is obtained, disperse modified powder is placed in mould, it is compressing to be placed in Muffle
In stove, at 1100 DEG C after heat preservation sintering 3h, standing is cooled to room temperature, you can is prepared into one kind and is uniformly dispersed type electrical contact material
Material.
Example 2
In mass ratio 1:15, stannic chloride is added in deionized water, is stirred and is placed in ultrasonic disperse processing under 250W
13min, obtain dispersion liquid, in mass ratio 1:5,0.5mol/L oxalic acid solutions are added dropwise in dispersion liquid, control the time for adding to be
28min, after being added dropwise to complete, it is stirred and stands 7h, then 13min is centrifuged under 3750r/min, collects lower sediment
And be washed with deionized to cleaning solution in neutrality, then 7h is dried at 105 DEG C, granular precursor is prepared into, by presoma
Grain is placed in Muffle furnace, and 28min is dried at 225 DEG C, then is warming up to 525 DEG C, after 4h is calcined in insulation by 5 DEG C/min, is stood cold
But to room temperature, granules of stannic oxide is obtained, is counted in parts by weight, weigh 48 parts of granules of stannic oxide, 38 parts of glass puttys and 13 parts of zinc powders respectively
It is placed in ball grinder, under 275r/min after ball milling 4h, crosses 200 mesh sieves and obtain mixing and ball milling powder, in mass ratio 1:10, it will mix
Ball-milled powder mixes with absolute ethyl alcohol, and mixing is stirred at room temperature and is placed in ultrasonic disperse 13min under 250W, then in 2250r/
Centrifuged under min, collect filter cake and be washed with deionized 4 times, powder after must washing of being milled after vacuum drying, after washing
Powder is placed in crucible, and crucible is placed under nanosecond pulse device, and electric discharge device is placed in the cathode surface of device, in nanosecond arteries and veins
The lower progress discharge process of power supply effect is rushed, it is 28V to control pulse output voltage, pulse recurrence frequency 1.8kHz, place to be discharged
After managing 25s, 28min is stood, disperse modified powder is obtained, disperse modified powder is placed in mould, it is compressing to be placed in Muffle
In stove, at 1150 DEG C after heat preservation sintering 4h, standing is cooled to room temperature, you can is prepared into one kind and is uniformly dispersed type electrical contact material
Material.
Example 3
In mass ratio 1:15, stannic chloride is added in deionized water, is stirred and is placed in ultrasonic disperse processing under 300W
15min, obtain dispersion liquid, in mass ratio 1:5,0.5mol/L oxalic acid solutions are added dropwise in dispersion liquid, control the time for adding to be
30min, after being added dropwise to complete, it is stirred and stands 8h, then 15min is centrifuged under 4000r/min, collects lower sediment
And be washed with deionized to cleaning solution in neutrality, then 8h is dried at 110 DEG C, granular precursor is prepared into, by presoma
Grain is placed in Muffle furnace, and 30min is dried at 250 DEG C, then is warming up to 550 DEG C, after 5h is calcined in insulation by 5 DEG C/min, is stood cold
But to room temperature, granules of stannic oxide is obtained, is counted in parts by weight, weigh 50 parts of granules of stannic oxide, 40 parts of glass puttys and 15 parts of zinc powders respectively
It is placed in ball grinder, under 300r/min after ball milling 5h, crosses 200 mesh sieves and obtain mixing and ball milling powder, in mass ratio 1:10, it will mix
Ball-milled powder mixes with absolute ethyl alcohol, and mixing is stirred at room temperature and is placed in ultrasonic disperse 15min under 300W, then in 3000r/
Centrifuged under min, collect filter cake and be washed with deionized 5 times, powder after must washing of being milled after vacuum drying, after washing
Powder is placed in crucible, and crucible is placed under nanosecond pulse device, and electric discharge device is placed in the cathode surface of device, in nanosecond arteries and veins
The lower progress discharge process of power supply effect is rushed, it is 30V to control pulse output voltage, pulse recurrence frequency 2.0kHz, place to be discharged
After managing 30s, 30min is stood, disperse modified powder is obtained, disperse modified powder is placed in mould, it is compressing to be placed in Muffle
In stove, at 1200 DEG C after heat preservation sintering 5h, standing is cooled to room temperature, you can is prepared into one kind and is uniformly dispersed type electrical contact material
Material.
Comparative example：The electrical contact material of Wenzhou District of Zhejiang Province alloy material limited company production.
To the electrical contact material progressive of be uniformly dispersed made from present example 1~3 type electrical contact material and comparative example
It can detect, its testing result is as shown in table 1：
Table 1
| Detection project | Example 1 | Example 2 | Example 3 | Comparative example |
| Density（g/cm3） | 8.85 | 8.89 | 8.92 | 8.65 |
| Electrical conductivity（mS/m） | 24 | 25 | 27 | 21 |
| Bending strength（MPa） | 42.7 | 44.9 | 46.5 | 38.6 |
| Electric life（It is secondary） | 32000 | 33000 | 33500 | 15200 |
| Tensile strength（MPa） | 415 | 427 | 439 | 368 |
| Limit short circuit pitch capability（kA） | 72 | 74 | 75 | 60 |
| Specified operation short circuit pitch capability（kA） | 52 | 54 | 56 | 40 |
In summary, the powder in type electrical contact material preparation process that is uniformly dispersed obtained by the present invention is uniformly dispersed, and is not easy to reunite, into
Material has excellent mechanical performance and good electrical property after type, effectively extends the electricity of contact system in high and low pressure electrical equipment
Life-span.
Claims (5)
1. a kind of preparation method for the type electrical contact material that is uniformly dispersed, it is characterised in that specifically preparation process is：
（1）In mass ratio 1:15, stannic chloride is added in deionized water, is stirred and ultrasonic disperse obtains dispersion liquid, by matter
Measure ratio 1:5,0.5mol/L oxalic acid solutions are added dropwise in dispersion liquid, after being added dropwise to complete, is stirred and stands, centrifuge
And lower sediment is collected, washing, dry granular precursor；
（2）Granular precursor is placed in Muffle furnace, calcining is incubated after drying, standing is cooled to room temperature, obtains granules of stannic oxide, press
Parts by weight meter, 45~50 parts of granules of stannic oxide, 35~40 parts of glass puttys and 10~15 parts of zinc powders are weighed respectively and are placed in ball grinder,
Ball milling, sieve to obtain mixing and ball milling powder；
（3）In mass ratio 1:10, mixing and ball milling powder is mixed with absolute ethyl alcohol, is stirred simultaneously ultrasonic disperse, centrifugation,
Filter cake is collected, is milled after scrubbed, dry, powder after must washing；
（4）Powder after washing is placed in crucible, crucible is placed under nanosecond pulse device, electric discharge device is placed in the moon of device
Pole surface, discharge process is carried out under nanosecond pulse power supply effect, disperse modified powder is obtained after standing, disperse modified powder is put
Compressing to be placed in Muffle furnace in mould, at 1100~1200 DEG C after 3~5h of heat preservation sintering, standing is cooled to room
Temperature, you can be prepared into one kind and be uniformly dispersed type electrical contact material.
A kind of 2. preparation method of type electrical contact material that is uniformly dispersed according to claim 1, it is characterised in that：Step
（1）Described time for adding is 25~30min.
A kind of 3. preparation method of type electrical contact material that is uniformly dispersed according to claim 1, it is characterised in that：Step
（2）Described drying temperature is 200~250 DEG C.
A kind of 4. preparation method of type electrical contact material that is uniformly dispersed according to claim 1, it is characterised in that：Step
（2）Described insulation calcining heat is 500~550 DEG C.
A kind of 5. preparation method of type electrical contact material that is uniformly dispersed according to claim 1, it is characterised in that：Step
（4）Described discharge process is：It is 25~30V to control pulse output voltage, and pulse recurrence frequency is 1.5~2.0kHz, electric discharge
Handle 20~30s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510735.2A CN107419124A (en) | 2017-06-28 | 2017-06-28 | A kind of preparation method for the type electrical contact material that is uniformly dispersed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510735.2A CN107419124A (en) | 2017-06-28 | 2017-06-28 | A kind of preparation method for the type electrical contact material that is uniformly dispersed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107419124A true CN107419124A (en) | 2017-12-01 |
Family
ID=60426239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710510735.2A Pending CN107419124A (en) | 2017-06-28 | 2017-06-28 | A kind of preparation method for the type electrical contact material that is uniformly dispersed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107419124A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705458A (en) * | 2018-05-30 | 2018-10-26 | 陈毅忠 | A kind of preparation method of uniform type combination agent material |
| CN111185602A (en) * | 2020-01-14 | 2020-05-22 | 湖北若林电器科技有限公司 | Preparation process of thermoelectric conversion material with atomization effect for 3D flame electric fireplace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029405A (en) * | 1983-07-28 | 1985-02-14 | Omron Tateisi Electronics Co | Manufacture of electrical contact material |
| CN101707157A (en) * | 2009-09-24 | 2010-05-12 | 温州宏丰电工合金有限公司 | Method for preparing Ag-SnO2-doped electrical contact material |
| JP2012003885A (en) * | 2010-06-15 | 2012-01-05 | Tanaka Kikinzoku Kogyo Kk | Ag-OXIDE-BASED ELECTRICAL CONTACT MATERIAL AND RELAY FOR VEHICLE USING IT |
| CN104505287A (en) * | 2014-12-22 | 2015-04-08 | 东北大学 | Preparation method of rod-shaped tin oxide-reinforced silver-based electric contact material |
| CN105886811A (en) * | 2016-04-14 | 2016-08-24 | 裴俊 | Preparation method of high-current welding-resistant silver-nickel electric contact material |
-
2017
- 2017-06-28 CN CN201710510735.2A patent/CN107419124A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6029405A (en) * | 1983-07-28 | 1985-02-14 | Omron Tateisi Electronics Co | Manufacture of electrical contact material |
| CN101707157A (en) * | 2009-09-24 | 2010-05-12 | 温州宏丰电工合金有限公司 | Method for preparing Ag-SnO2-doped electrical contact material |
| JP2012003885A (en) * | 2010-06-15 | 2012-01-05 | Tanaka Kikinzoku Kogyo Kk | Ag-OXIDE-BASED ELECTRICAL CONTACT MATERIAL AND RELAY FOR VEHICLE USING IT |
| CN104505287A (en) * | 2014-12-22 | 2015-04-08 | 东北大学 | Preparation method of rod-shaped tin oxide-reinforced silver-based electric contact material |
| CN105886811A (en) * | 2016-04-14 | 2016-08-24 | 裴俊 | Preparation method of high-current welding-resistant silver-nickel electric contact material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108705458A (en) * | 2018-05-30 | 2018-10-26 | 陈毅忠 | A kind of preparation method of uniform type combination agent material |
| CN111185602A (en) * | 2020-01-14 | 2020-05-22 | 湖北若林电器科技有限公司 | Preparation process of thermoelectric conversion material with atomization effect for 3D flame electric fireplace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102176336B (en) | Preparation method of silver-based oxide electrical contact material with filamentary structure | |
| CN100417736C (en) | Method for preparing alumina dispersion-strenghtened copper-base composite material | |
| CN111411254B (en) | Tungsten-reinforced copper composite material and preparation method thereof | |
| CN106735176A (en) | Sub- titanium oxide metal composite is spherical or spherical powder and preparation method thereof | |
| CN101510479B (en) | Method for preparing siller tin oxide electric contact material | |
| CN109536771A (en) | A kind of preparation method of dispersion strengthened copper oxygen sheet alloy | |
| CN106498205A (en) | A kind of manufacture method of the CuCr alloys of large scale high-compactness high uniformity | |
| CN103352136A (en) | Copper-based contact material and manufacturing process thereof | |
| CN102737863B (en) | Silver nickel graphite composite contact terminal material and processing method thereof | |
| CN111644612A (en) | Preparation method of plasma sintering agglomerated metal ceramic thermal spraying composite powder | |
| CN102808099B (en) | Preparation method for Al2O3 dispersion-strengthened Cu/Cr composite material | |
| CN107419124A (en) | A kind of preparation method for the type electrical contact material that is uniformly dispersed | |
| CN102345142A (en) | Method for mixing and kneading carbon anode paste for aluminum electrolysis | |
| CN109994327A (en) | A kind of AgMe contact material and preparation method thereof for breaker | |
| CN104961137B (en) | A kind of preparation method of nano alkaline-earth metal boride | |
| CN106498206A (en) | A kind of Ti3SiC2Strengthen the preparation method of Ag base electric contact materials | |
| CN106191511A (en) | The manufacture method of copper-chromium contact material | |
| CN101624662B (en) | Method for preparing W-Cu alloy in microwave infiltration way | |
| CN104934104B (en) | A kind of low silver content crystal silicon solar batteries back side silver paste and preparation method | |
| CN108559867A (en) | A kind of high conductivity CuCr30 contact materials and preparation method thereof | |
| CN106381411B (en) | A kind of preparation method of copper-tungsten and CuW-CrCu integral materials | |
| CN102031408B (en) | Method for preparing silver-based oxide electrical contact material with fibrous structure | |
| CN105108150B (en) | Preparation method of silver-copper-oxide electrical contact material | |
| CN107419125B (en) | A kind of preparation method of high stable type copper-based electric contact material | |
| CN103745842B (en) | A kind of Ag-based electrical contact material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190710 Address after: 210000 300 Chi Hui Road, Qilin science and Technology Innovation Park, Jiangning District, Nanjing, Jiangsu Applicant after: Nanjing Xu Rui Rui Mstar Technology Ltd Address before: 213102 No. 128 Hanjiang Road, Xinbei District, Changzhou, Jiangsu Applicant before: Changzhou force Digital Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20191022 |
|
| AD01 | Patent right deemed abandoned |