KR960004807B1 - Brush manufacturing method - Google Patents

Brush manufacturing method Download PDF

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Publication number
KR960004807B1
KR960004807B1 KR1019930019764A KR930019764A KR960004807B1 KR 960004807 B1 KR960004807 B1 KR 960004807B1 KR 1019930019764 A KR1019930019764 A KR 1019930019764A KR 930019764 A KR930019764 A KR 930019764A KR 960004807 B1 KR960004807 B1 KR 960004807B1
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KR
South Korea
Prior art keywords
powder
copper
brush
mos
coated
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KR1019930019764A
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Korean (ko)
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KR950010197A (en
Inventor
정태승
김성수
안길수
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만도기계주식회사
정몽원
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Priority to KR1019930019764A priority Critical patent/KR960004807B1/en
Publication of KR950010197A publication Critical patent/KR950010197A/en
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Publication of KR960004807B1 publication Critical patent/KR960004807B1/en

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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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

The manufacturing method includes forming a mixture of less than 50 weight percent of graphite powder, more than 50 weight percent of copper powder and an additive, under the pressure of 2 or 3 ton/cm2. The copper-coated MOS2 powder is added in the additive. By adding the copper-coated MOS2, it is possible to minimize the difference of the density between copper powder and MOS2, and improve the life and efficiency of motor.

Description

자동차모타용 금속흑연질 브러시 제조방법Manufacturing method of metal graphite brush for automobile motor

본 발명은 자동차모터용 금속흑연질 브러시 제조방법에 관한 것으로서, 특히 브러시 제조시 첨가제로 황화몰리브렌(MSO2)등을 코팅하여 편석을 줄이고, 모타동작시 출력특성을 향상시킬 수 있도록 한 것이다.The present invention relates to a method for manufacturing a metal graphite brush for an automobile motor, and in particular, by coating molybdenum sulfide (MSO 2 ) as an additive when manufacturing a brush, to reduce segregation, and to improve the output characteristics during the motor operation.

종래의 회전기기용 특히 자동차모터의 카본브러시 제조시 윤활특성을 갖게 하므로서 내마모성을 향상시키기 위해 황화몰리브덴(MOS2) 분말을 첨가하는데 이때 동분말과 MOS2분말의 밀도차이로 인해 발생하는 편석현상을 줄이기 위해 동분말과, MOS2분말을 부피비로 1 : 1로 혼합한 후 다시 원하는 조성비로 2차 혼합하는 공정을 거쳐 성형하고, 소성하는 공정으로 흑연질 브러시를 제조하였다.Molybdenum sulfide (MOS 2 ) powder is added to improve wear resistance while producing lubrication characteristics in the manufacture of carbon brushes for conventional rotary machines, especially automobile motors, and reduce segregation caused by the density difference between copper powder and MOS 2 powder. In order to prepare a graphite brush by mixing the copper powder and the MOS 2 powder in a volume ratio of 1: 1, and then again mixing the powder in a desired composition ratio, followed by baking.

그러나 이와같은 금속흑연질 브러시의 경우 윤활특성향상 및 브러시의 내마모성을 갖게 하기 위해 MOS2분말을 첨가하는데 동분말과, MOS2분말의 밀도차이로 인해 편석이 발생될 수도 있고 또한 윤활특성 향상을 위해 다량 첨가할 경우 브러시의 비저항이 상승하여 출력특성이 저감될 수도 있는 것이다.However, in the case of the metal graphite brush, MOS 2 powder is added to improve lubrication characteristics and wear resistance of the brush, and segregation may occur due to the density difference between copper powder and MOS 2 powder. If a large amount is added, the specific resistance of the brush may increase, thereby reducing output characteristics.

그리고 혼합시 편석을 줄이기 위해 동분말과 MOS2, 분말을 부피비로 1 : 1로 혼합하여 다시 원하는 조성비로 2차 혼합하는 공정을 거치므로 인해 브러시 제조공정이 복잡해지는 문제점 들을 야기하였다.In addition, in order to reduce segregation during mixing, copper powder, MOS 2 and powder were mixed in a volume ratio of 1: 1, and then mixed again in a desired composition ratio.

본 발명은 상기한 종래의 문제점 등을 해결하기 위한 것으로서 브러시 제조시, 동이 코팅된 MOS2분말을 사용하므로서 혼합시 편석현상을 줄이고, 브러시내에서 동분말의 연결이 균일하게 이루어짐으로서 비저항을 저감시킴은 물론 이로 인하여 모타의 브러시에 의한 수명연장 및 출력특성을 향상시키려는 것이 그 목적이다.The present invention is to solve the above-mentioned problems, such as the manufacturing of the brush, the use of copper-coated MOS 2 powder to reduce segregation during mixing, the copper powder is uniformly connected in the brush to reduce the specific resistance Of course, the purpose is to improve the life extension and output characteristics of the motor brush.

상기의 목적을 달성할 수 있는 본 발명을 상세히 설명하면 다음과 같다.Referring to the present invention that can achieve the above object in detail as follows.

본 발명은 금속흑연질 브러시의 제조방법에 관한 것으로서 흑연분말 50중량%, 이하와 동분말 50중량% 이상에 윤활특성 및 피막조성작업으로 1-10중량% MOS2, PbWS2및 Al2O2, SiO2등을 첨가한다.The present invention relates to a method for producing a metal graphite brush, 1 to 10% by weight MOS 2 , PbWS 2 and Al 2 O 2 by lubricating properties and coating composition to 50% by weight of graphite powder, less than 50% by weight of copper powder , SiO 2, etc. are added.

그리고 카본브러시의 성형성 및 소성 후 결합강도 향상을 위해 열경화성수지(Novola형 phenol수지, Bisphenol A형 Epoxy수지, Resol형 phenol수지, Resol형 Furfural수지)를 상기 흑연에 대해 1∼40중량% 첨가하여 열경화성 수지와 흑연을 습식혼합한 후 수지를 희석시킨 용해성분만 휘발되도록 오븐(oven)에서 50∼80℃의 온도로 가열하여 휘발시키고, 수지가 포함된 흑연을 분쇄하여 일정입도를 갖도록 한다.In addition, thermosetting resin (Novola type phenol resin, Bisphenol A type Epoxy resin, Resol type phenol resin, Resol type furfural resin) was added 1 to 40% by weight with respect to the graphite to improve the formability and bonding strength of the carbon brush. After wet-mixing the thermosetting resin and graphite, the solution is diluted by heating to a temperature of 50 to 80 ° C. in an oven so as to volatilize only the dissolved components in which the resin is diluted.

수지가 포함된 흑연에 동분 및 첨가제를 원하는 조성으로 첨가하여 혼합한 후 2∼3ton/cm2로 성형하여 600∼800℃로 소성을 행하고 모타에 장착할 수 있도록 가공한 브러시를 얻는다.Copper powder and an additive are added to the graphite containing the resin in a desired composition, mixed, molded into 2 to 3 ton / cm 2 , fired at 600 to 800 ° C., and a brush processed to be mounted on a motor.

또한 브러시에 리드와이어(Lead wire)를 부착하는데 리드와이어 부착방법으로는 성형과 동시에 리드와이어를 부착하는 몰드(Mold)법과, 성형 후 가공에 의해 부착하는 탭핑(Tapping)법이 있다.In addition, a lead wire is attached to a brush, and the method of attaching a lead wire includes a mold method of attaching the lead wire at the same time as the molding and a tapping method of attaching the lead wire by processing after molding.

이중 몰드법이 브러시의 전기적 특성의 면에서 우수하다.The double mold method is excellent in terms of the electrical properties of the brush.

이상 설명에서와 같이 본 발명에서 MOS2의 첨가방법으로 MOS2에 동을 코팅하므로서 동과 MOS2의 밀도차이를 줄여 혼합시의 편석현상을 최소화한다. 또한 MOS2의 고유저항이 높음으로 인해 브러시의 비저항이 상승되는 원인으로 첨가량의 제약을 동이 코팅된 분말을 사용하므로서 첨가량의 제약을 해소하므로서 재료의 비저항을 낮추고, 또한 윤활특성을 향상시킬 수 있는 것이다.The present invention the density difference between the East and MOS 2 hameuroseo coating the copper in MOS 2 with the addition of the MOS 2 in the way as described above reduces and minimizes the segregation phenomenon at the time of mixing. In addition, due to the high resistivity of MOS 2, the specific resistance of the brush is increased due to the increase of the specific resistance of the brush. Thus, by using the powder coated with copper, the specific resistance of the material can be lowered and the lubrication characteristics can be improved. .

그러므로 모타동작시 출력을 향상시키고 내마모성이 향상된다.Therefore, the output is improved and the wear resistance is improved during the motor operation.

이상 설명한 바와같이 브러시 제조시 동이 코팅된 MOS2분말을 사용하므로서 혼합시 편석현상을 줄이고, 브러시 내에서 동분말의 연결이 균일하게 이루어지므로서 비저항을 저감시킴으로 인하여 모타의 브러시에 의한 수명연장 및 출력특성을 향상시키는 특성이 있다.As described above, MOS 2 powder coated with copper is used in brush manufacturing to reduce segregation during mixing and uniform resistance of copper powder in the brush reduces specific resistance, thus extending the life and output of the motor by brush. There is a characteristic to improve the characteristic.

Claims (2)

흑연분 50중량% 이하와 동분 50중량% 이상과 첨가제를 혼합하여 2∼3ton/㎠로 가압성형하되, 상기 첨가재로 동이 코팅된 MOS2분말을 적당량 첨가하여 제조되는 것을 특징으로 하는 자동차모타용 금속흑연질 브러시 제조방법.Metal powder for automobile motors, which is manufactured by adding 50 wt% or less of graphite powder, 50 wt% or more of copper powder, and additives to pressurization at 2 to 3 ton / cm2, by adding an appropriate amount of MOS 2 powder coated with copper as the additive. Graphite brush manufacturing method. 제1항에 있어서, 동이 코팅된 MOS2분말을 전체중량%에 1∼10중량%에 첨가한 자동차모타용 금속흑연질 브러시 제조방법.The method of claim 1, wherein the copper-coated MOS 2 powder is added in an amount of 1 to 10% by weight based on the total weight.
KR1019930019764A 1993-09-25 1993-09-25 Brush manufacturing method KR960004807B1 (en)

Priority Applications (1)

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KR1019930019764A KR960004807B1 (en) 1993-09-25 1993-09-25 Brush manufacturing method

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Application Number Priority Date Filing Date Title
KR1019930019764A KR960004807B1 (en) 1993-09-25 1993-09-25 Brush manufacturing method

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KR960004807B1 true KR960004807B1 (en) 1996-04-13

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Publication number Priority date Publication date Assignee Title
KR20000015411A (en) * 1998-08-28 2000-03-15 밍 루 Manufacturing method of carbon brush for vehicle motor
KR100307659B1 (en) * 1999-10-08 2001-10-17 조규석 A Method for Manufacturing Metal-Graphite Brushes with Excellent Durability

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