KR970001217A - Manufacturing method of disk-shaped graphite particles and metal-graphite composites using the same - Google Patents

Manufacturing method of disk-shaped graphite particles and metal-graphite composites using the same Download PDF

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Publication number
KR970001217A
KR970001217A KR1019950018947A KR19950018947A KR970001217A KR 970001217 A KR970001217 A KR 970001217A KR 1019950018947 A KR1019950018947 A KR 1019950018947A KR 19950018947 A KR19950018947 A KR 19950018947A KR 970001217 A KR970001217 A KR 970001217A
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South Korea
Prior art keywords
graphite
metal
shaped
powder
particles
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KR1019950018947A
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Korean (ko)
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KR0144991B1 (en
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이재형
이재열
이장석
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박성훈
주식회사 가 람
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Priority to KR1019950018947A priority Critical patent/KR0144991B1/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/522—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/628—Coating the powders or the macroscopic reinforcing agents
    • C04B35/62802—Powder coating materials
    • C04B35/62842—Metals
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63452—Polyepoxides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/402—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Powder Metallurgy (AREA)

Abstract

본 발명은 원동형 용기내에서 회전날개를 고속으로 회전시켜 흑연분말과 수지분말을 용매를 사용하여 원판형 입자로 조립시키는 제조방법을 제공하며 이러한 원판형 입자를 사용하여 만든 전기적 그리고 마모특성이 향상된 주로 모터용 브러쉬에 쓰이는 구리등의 금속-흑연 복합체에 관한 것이다.The present invention provides a manufacturing method of assembling graphite powder and resin powder into disc-shaped particles using a solvent by rotating the rotor blades at a high speed in a cylindrical container, and improved electrical and wear characteristics made using such disc-shaped particles. The present invention relates to metal-graphite composites, such as copper, mainly used in motor brushes.

Description

원판형 흑연입자의 제조방법과 이를 이용한 금속-흑연 복합체Manufacturing method of disk-shaped graphite particles and metal-graphite composites using the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 1 도의 (가)(나)(다)는 흑연입자의 미세구조를 도식적으로 보여 주는 확대도로서, (가)(나)는 종래의 흑연입자, (다)은 본발명에 따른 흑연입자이다.(A) (b) (c) of FIG. 1 is an enlarged view schematically showing the microstructure of the graphite particles, (a) (b) are conventional graphite particles, (c) are graphite particles according to the present invention. .

Claims (10)

하나 이상의 회전날개를 가지고 있는 원통형의 용기에 평균직경 50㎛ 이하의 흑연분말과 결합제인 수지분말을 넣고 건식혼합을 거쳐, 수지를 용해시키는 용매를 넣어 습식혼합을 충분히 한 후, 뚜껑이 닫힌채로 일정한 크기의 구멍으로 진공흡입기를 사용하여 용매를 증발시키고, 회전날개를 1000∼4000rpm으로 고속으로 회전시켜 과립된 또는 과립되는 흑연입자가 회전날개 또는 용기 내벽에 또는 입자들끼리 부딪치며 원판형으로 변하게 하여, 두께 대 직경 평균비가1 : 3∼1 : 10, 평균 직경이 20∼500㎛ 크기로 하는 원판형 흑연입자의 제조방법.Put a graphite powder with an average diameter of 50㎛ or less and a resin powder as a binder in a cylindrical container having one or more rotary blades, dry mix, add a solvent for dissolving the resin, and sufficiently wet the mixture, and then keep the lid closed. The solvent is evaporated using a vacuum inhaler into a hole of a size, and the rotary blade is rotated at a high speed at 1000 to 4000 rpm so that the granulated or granulated graphite particles collide with the rotary blade or the inner wall of the container or with the particles and become disc shaped. A method for producing disc-shaped graphite particles having a thickness-to-diameter average ratio of 1: 3 to 10 and an average diameter of 20 to 500 µm. 제1항에 있어서, 건식 및 습식혼합을 별도의 일반혼합기에서 행하는 원판형 흑연입자의 제조방법.The method for producing disc-shaped graphite particles according to claim 1, wherein dry and wet mixing are performed in a separate general mixer. 제1항에 있어서, 흑연 및 수지분말외에 Al, Mg, Si, Fe, Pb, Mo, Ba, Li등 또는 이들의 산화물, 탄화물, 질화물,또는 황화물 등의 화합물을 첨가하는 원판형 흑연입자의 제조방법.The method of claim 1, wherein in addition to the graphite and resin powder, the production of disc-shaped graphite particles to which Al, Mg, Si, Fe, Pb, Mo, Ba, Li and the like or compounds thereof, such as oxides, carbides, nitrides, sulfides, etc. Way. 제1항에 있어서, 상기한 수지는 에폭시, 페놀수지로 하고, 이 수지는 피치 또는 유기물 결합제로 대체가능한 원판형 흑연입자의 제조방법.The method of claim 1, wherein the resin is an epoxy or phenol resin, and the resin is replaceable with a pitch or organic binder. 제1항에 있어서, 소결중 복합체의 팽창이 너무 크지 않은 범위에서 직경 10㎛에서 500㎛ 크기의 인상흑연 또는 이와 유사한 판상결정입자들을 첨가하여, 판상의 효과를 증가시키거나, 또는 모난형이나 구형의 입자에, 상기한 원판형 흑연 또는 판상 결정입자들을 무게비로 1∼80% 를 첨가한 원판형 흑연입자의 제조방법.The method according to claim 1, in which the expanded graphite or similar plate crystal grains having a diameter of 10 µm to 500 µm in diameter are added in a range in which the expansion of the composite during sintering is not too large, thereby increasing the effect of lamellar or angular or spherical. The disk-like graphite particle manufacturing method which added 1-80% of said disk-like graphite or plate-shaped crystal grains by weight ratio to the particle | grains of this. 두께대 직경의 평균비가 1:3∼1:10이 되는 원판형 흑연입자와, 금속이 흑연에 대해 무게비로 1∼99% 범위에있는 금속-흑연 복합체.A disk-shaped graphite particle having an average ratio of thickness to diameter of 1: 3 to 1:10, and a metal-graphite composite in which the metal is in the range of 1 to 99% by weight to graphite. 제6항에 있어서, 금속-흑연 복합체는 차량용 시동모터의 브러쉬에 사용되는 금속-흑연 복합체.The metal-graphite composite according to claim 6, wherein the metal-graphite composite is used in a brush of a vehicle starting motor. 제6항에 있어서 , 흑연입자는 금속으로 코팅되며, 코팅된 흑연입자는 또한 금속분말과 혼합하는 금속-흑연복합체.The metal-graphite composite according to claim 6, wherein the graphite particles are coated with a metal, and the coated graphite particles are also mixed with the metal powder. 제6항에 있어서, Al, Mg, Si, Te, Pb, Mo, Ba, Li등 또는 이들의 산화물, 탄화물, 질화물 또는 황화물 등의 화합물 첨가제를 흑연입자 와 금속분말이 혼합될 때 또는 금속분말과 미리 혼합하여 첨가하는 금속-흑연 복합체.According to claim 6, Al, Mg, Si, Te, Pb, Mo, Ba, Li and the like or compound additives such as oxides, carbides, nitrides or sulfides of the graphite particles and metal powder or when the metal powder and Metal-graphite composite added by mixing in advance. 제6항에 내지 제8항 중 어느 한 항에 있어서, 분말야금법이나 금속용융함침법을 사용하여 제조한 금속-흑연 복합체.The metal-graphite composite according to any one of claims 6 to 8, prepared by using powder metallurgy or metal fusion impregnation. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950018947A 1995-06-30 1995-06-30 Method fkr manufacturing disk-shaped graphite particles KR0144991B1 (en)

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KR970001217A true KR970001217A (en) 1997-01-21
KR0144991B1 KR0144991B1 (en) 1998-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100729484B1 (en) * 2002-04-04 2007-06-15 도라이스 가부시키가이샤 Metal-Graphite Brush and Production Method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100485244B1 (en) * 2002-04-18 2005-04-25 희성금속 주식회사 A graphite series contact or brush and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100729484B1 (en) * 2002-04-04 2007-06-15 도라이스 가부시키가이샤 Metal-Graphite Brush and Production Method thereof

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