CN104901114A - High-wear-resistance motor carbon brush doped with chromium carbide, and preparation method for high-wear-resistance motor carbon brush - Google Patents
High-wear-resistance motor carbon brush doped with chromium carbide, and preparation method for high-wear-resistance motor carbon brush Download PDFInfo
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- CN104901114A CN104901114A CN201510252717.XA CN201510252717A CN104901114A CN 104901114 A CN104901114 A CN 104901114A CN 201510252717 A CN201510252717 A CN 201510252717A CN 104901114 A CN104901114 A CN 104901114A
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- carbon brush
- wear
- chromium carbide
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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
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
- H01R39/22—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof incorporating lubricating or polishing ingredient
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention relates to the technical field of carbon brushes, and specifically relates to a high-wear-resistance motor carbon brush doped with chromium carbide, and a preparation method for the high-wear-resistance motor carbon brush. A carbon brush product employs medium-temperature coal-tar pitch and polyamide resin as an adhesive, wherein the composite adhesive is good in adhesive strength, is light in weight, is high in strength, is resistant to corrosion, and is durable and efficient in binding. The doped chromium carbide is good in stability, is high in strength, is good in conductivity, is resistant to wear, and effectively prolongs the service life of carbon brush materials. The addition of nano carbon sol improves the conductivity of the carbon brush, and improves the wear resistance. The carbon brush is excellent in conductivity, is stable in operation, is good in wear resistance, and is longer in service life.
Description
Technical field
The present invention relates to carbon brush technical field, be specifically related to abrasion resistant and corrosion resistant carbon brush used for electric engine of a kind of blending nano chromium carbide and preparation method thereof.
Background technology
Carbon brush is a class slide contact member, be widely used in many electric equipments, it is motor, the device of transferring energy and signal between the standing part of engine or other rotating machineries and rotating part, its composition material is primarily of graphite, Resin adhesive and other auxiliary agents, then make through sinter molding, conventional carbon brush in use ubiquity wears no resistance, loss is large, the problems such as useful life is short, and there is pollution in process of production, therefore research and development service efficiency is badly in need of high, the carbon brush material of Environmental Safety, to adapt to the demand in market.
Summary of the invention
The object of the invention is to, provide abrasion resistant and corrosion resistant carbon brush used for electric engine of a kind of blending nano chromium carbide and preparation method thereof, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of abrasion resistant and corrosion resistant carbon brush used for electric engine of blending nano chromium carbide, it is characterized in that, this carbon brush is made up of the raw material of following weight portion: nano chromium carbide 0.5-1, polyamide 10-14, high purity graphite 50-60, medium temperature coal pitch 25-28, conductive carbon black 5-8, nano carbon sol 10-12, castor oil 6-10, epoxy resin 10-12, dodecyl sodium sulfate 0.1-0.2, nano-aluminium oxide 4-6, titanate coupling agent 1-2.
The preparation method of the abrasion resistant and corrosion resistant carbon brush used for electric engine of described a kind of blending nano chromium carbide is: first each component dropped into after mixing in mixer, be heated to 60-80 DEG C, continue to be uniformly mixed 30-40min, subsequently gained material is cooled, drop into backflow in pulverizer to pulverize, make gained powder cross 100 mesh sieves, then by compressing for gained micro mist band line, product after shaping is sent in blanket of nitrogen sintering furnace and is sintered, and gets product after terminating through cooling, electric welding, packaging.
Described sintering condition is: sintering temperature: 300-350 DEG C; Sintering time 8-12h.
Beneficial effect: the present invention utilizes medium temperature coal pitch to mix as bonding agent with polyamide, epoxy resin, this composite caking agent cohesive force is strong, quality is light, intensity is high, erosion resistant, bonding persistent high efficiency, the nano chromium carbide good stability of blending, intensity is high, good conductivity, wear-and corrosion-resistant, effectively raise the useful life of carbon brush material, nano carbon sol add the conductivity further increasing carbon brush, strengthen resistance to wear, the carbon brush electric conductivity that the present invention prepares is excellent, smooth running, wear-resistant corrosion, longer service life.
Embodiment
Embodiment
The carbon brush of the present embodiment is made up of the raw material of following weight portion: nano chromium carbide 0.8, polyamide 12, high purity graphite 58, medium temperature coal pitch 26, conductive carbon black 6, nano carbon sol 10, castor oil 8, epoxy resin 12, dodecyl sodium sulfate 0.1, nano-aluminium oxide 5, titanate coupling agent 1.5.
Its preparation method is: first each component dropped into after mixing in mixer, be heated to 60-80 DEG C, continue to be uniformly mixed 35min, subsequently gained material is cooled, drop into backflow in pulverizer to pulverize, make gained powder cross 100 mesh sieves, then by compressing for gained micro mist band line, product after shaping is sent in blanket of nitrogen sintering furnace and is sintered, and gets product after terminating through cooling, electric welding, packaging.
Wherein sintering condition is: sintering temperature: 300-350 DEG C; Sintering time 10h.
The carbon brush the performance test results that the present embodiment obtains is as follows:
Test item | Detected value |
Size | 5mm*5mm*15mm |
Shore hardness | 18 |
Abrasion loss mm/100H | 0.40 |
Slip noise (dB) | ≤44 |
Useful life (H) | ≥1278 |
Spark situation | Stable |
Resistivity μ Ω .m | 285 |
Claims (3)
1. the abrasion resistant and corrosion resistant carbon brush used for electric engine of a blending nano chromium carbide, it is characterized in that, this carbon brush is made up of the raw material of following weight portion: nano chromium carbide 0.5-1, polyamide 10-14, high purity graphite 50-60, medium temperature coal pitch 25-28, conductive carbon black 5-8, nano carbon sol 10-12, castor oil 6-10, epoxy resin 10-12, dodecyl sodium sulfate 0.1-0.2, nano-aluminium oxide 4-6, titanate coupling agent 1-2.
2. the preparation method of the abrasion resistant and corrosion resistant carbon brush used for electric engine of a kind of blending nano chromium carbide as claimed in claim 1, it is characterized in that, described preparation method is: first each component dropped into after mixing in mixer, be heated to 60-80 DEG C, continue to be uniformly mixed 30-40min, subsequently gained material is cooled, drop into backflow in pulverizer to pulverize, gained powder is made to cross 100 mesh sieves, again by compressing for gained micro mist band line, product after shaping is sent in blanket of nitrogen sintering furnace and is sintered, and gets product after terminating through cooling, electric welding, packaging.
3. the preparation method of the abrasion resistant and corrosion resistant carbon brush used for electric engine of a kind of blending nano chromium carbide as claimed in claim 2, it is characterized in that, in described sintering process, sintering condition is: sintering temperature: 300-350 DEG C; Sintering time 8-12h.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510252717.XA CN104901114A (en) | 2015-05-18 | 2015-05-18 | High-wear-resistance motor carbon brush doped with chromium carbide, and preparation method for high-wear-resistance motor carbon brush |
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CN201510252717.XA CN104901114A (en) | 2015-05-18 | 2015-05-18 | High-wear-resistance motor carbon brush doped with chromium carbide, and preparation method for high-wear-resistance motor carbon brush |
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CN104901114A true CN104901114A (en) | 2015-09-09 |
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CN201510252717.XA Pending CN104901114A (en) | 2015-05-18 | 2015-05-18 | High-wear-resistance motor carbon brush doped with chromium carbide, and preparation method for high-wear-resistance motor carbon brush |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107868454A (en) * | 2016-09-28 | 2018-04-03 | 河南智联寰宇知识产权运营有限公司 | Wear-resistant, high-temperature resistant nylon composite functional material and preparation method thereof |
CN107868444A (en) * | 2016-09-28 | 2018-04-03 | 河南智联寰宇知识产权运营有限公司 | Wear-resistant, high-temperature resistant nylon composite materials and preparation method thereof |
CN107868455A (en) * | 2016-09-28 | 2018-04-03 | 河南智联寰宇知识产权运营有限公司 | High temperature resistant nylon graphene composite functional material and preparation method thereof |
CN108250740A (en) * | 2016-12-29 | 2018-07-06 | 河南智联寰宇知识产权运营有限公司 | Anti skid bearing |
CN108250730A (en) * | 2016-12-29 | 2018-07-06 | 河南智联寰宇知识产权运营有限公司 | Heat resistant and wear resistant conveyer belt |
CN108250739A (en) * | 2016-12-29 | 2018-07-06 | 河南智联寰宇知识产权运营有限公司 | A kind of automotive anti-sideslip hinge |
CN111799621A (en) * | 2020-06-28 | 2020-10-20 | 东风博泽汽车系统有限公司 | High-current-resistant motor carbon brush composite material |
CN112852108A (en) * | 2021-03-22 | 2021-05-28 | 依润特工业智能科技(苏州)有限公司 | High-conductivity wear-resistant material based on polyamide and preparation method thereof |
CN114824990A (en) * | 2022-04-26 | 2022-07-29 | 安徽衡盛五金机电制品有限公司 | Rapid forming process method of wear-resistant carbon brush |
Citations (2)
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CN102074875A (en) * | 2009-11-19 | 2011-05-25 | 杨长根 | Method for manufacturing electric brush used for industrial motor |
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2015
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Patent Citations (2)
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CN102074875A (en) * | 2009-11-19 | 2011-05-25 | 杨长根 | Method for manufacturing electric brush used for industrial motor |
CN102324681A (en) * | 2011-06-02 | 2012-01-18 | 朱伟 | Production method of conductive anti-friction material of electric brush |
Non-Patent Citations (1)
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陈建、李春林、王俊峰、陈刚、肖海东: "偶联剂处理对树脂碳刷结合性能的影响", 《非金属矿》 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107868454A (en) * | 2016-09-28 | 2018-04-03 | 河南智联寰宇知识产权运营有限公司 | Wear-resistant, high-temperature resistant nylon composite functional material and preparation method thereof |
CN107868444A (en) * | 2016-09-28 | 2018-04-03 | 河南智联寰宇知识产权运营有限公司 | Wear-resistant, high-temperature resistant nylon composite materials and preparation method thereof |
CN107868455A (en) * | 2016-09-28 | 2018-04-03 | 河南智联寰宇知识产权运营有限公司 | High temperature resistant nylon graphene composite functional material and preparation method thereof |
CN108250740A (en) * | 2016-12-29 | 2018-07-06 | 河南智联寰宇知识产权运营有限公司 | Anti skid bearing |
CN108250730A (en) * | 2016-12-29 | 2018-07-06 | 河南智联寰宇知识产权运营有限公司 | Heat resistant and wear resistant conveyer belt |
CN108250739A (en) * | 2016-12-29 | 2018-07-06 | 河南智联寰宇知识产权运营有限公司 | A kind of automotive anti-sideslip hinge |
CN111799621A (en) * | 2020-06-28 | 2020-10-20 | 东风博泽汽车系统有限公司 | High-current-resistant motor carbon brush composite material |
CN112852108A (en) * | 2021-03-22 | 2021-05-28 | 依润特工业智能科技(苏州)有限公司 | High-conductivity wear-resistant material based on polyamide and preparation method thereof |
CN114824990A (en) * | 2022-04-26 | 2022-07-29 | 安徽衡盛五金机电制品有限公司 | Rapid forming process method of wear-resistant carbon brush |
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Application publication date: 20150909 |