KR960022330A - Carbon molding method - Google Patents

Carbon molding method Download PDF

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Publication number
KR960022330A
KR960022330A KR1019940038970A KR19940038970A KR960022330A KR 960022330 A KR960022330 A KR 960022330A KR 1019940038970 A KR1019940038970 A KR 1019940038970A KR 19940038970 A KR19940038970 A KR 19940038970A KR 960022330 A KR960022330 A KR 960022330A
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KR
South Korea
Prior art keywords
pitch
powder
carbon molded
molded body
producing
Prior art date
Application number
KR1019940038970A
Other languages
Korean (ko)
Other versions
KR970008694B1 (en
Inventor
오세민
박양덕
이병희
Original Assignee
김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 김만제, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김만제
Priority to KR1019940038970A priority Critical patent/KR970008694B1/en
Publication of KR960022330A publication Critical patent/KR960022330A/en
Application granted granted Critical
Publication of KR970008694B1 publication Critical patent/KR970008694B1/en

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Classifications

    • 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
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • 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
    • 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
    • C04B35/64—Burning or sintering processes
    • 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
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

본 발명은 핏치류를 원료로 하여 기계용 부품, 전기부품 및 화학장치구조용으로 사용되는 고강도, 고밀도 탄소성형체 제조방법에 관한 것이다.The present invention relates to a method for producing a high strength, high density carbon molded body which is used as a raw material for pitches for machine parts, electrical parts, and chemical device structures.

본 발명에 의하면, 연화점이 280℃ 이상인 핏치를 크기가 100μm 이하인 분말로 분쇄한 후, 산소분위기하에서 200~270℃에서 0.5~24시간 산화처리하여 산화핏치 분말을 제조한 다음, 상기 산화핏치 분말을 실온에서 100~2000kg/cm2의 압력으로 가압성형한 후, 불활황성분위기하에서 900℃ 이상의 온도에서 소성함을 특징으로 하는 핏치를 이용한 고밀도, 고강도 탄소성형체 제조방법이 제공된다.According to the present invention, a pitch having a softening point of 280 ° C. or more is pulverized into a powder having a size of 100 μm or less, followed by oxidation treatment at 200 to 270 ° C. for 0.5 to 24 hours in an oxygen atmosphere to prepare an oxide pitch powder, and then After press molding at a pressure of 100 ~ 2000kg / cm 2 at room temperature, there is provided a high-density, high-strength carbon molded article using a pitch characterized in that the firing at a temperature of 900 ℃ or more under the inert sulfur component crisis.

산화처리하여 적정량의 산소를 함유하는 산화핏치 분말을 원료로 하여 탄소성형체론 제조함으로써 간단한 제조방법으로 고밀도, 고장도 탄소성형체를 제조할 수 있다.By oxidizing and producing a carbon molded body using an oxidized pitch powder containing an appropriate amount of oxygen as a raw material, a high density, high-tension carbon molded body can be produced by a simple manufacturing method.

Description

탄소성형체 제조방법Carbon molding method

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

Claims (3)

연화점이 280℃ 이상인 핏치를 크기가 100μm 이하인 분말로 분쇄한 후, 산소분위기하에서 200~270℃에서 0.5~24시간 산화처리하여 산화핏치 분말을 제조한 다음, 상기 산화핏치분말을 실온에서 100∼2000kg/cm2의 압력으로 가압성형한 후, 불활성분위기하에서 900℃ 이상의 온도에서 소성함을 특징으로 하는 핏치를 이용한 고밀도, 고장도 탄소성형체 제조방법.Pitch having a softening point of at least 280 ° C is pulverized into a powder having a size of 100 μm or less, and then oxidized at 200 to 270 ° C for 0.5 to 24 hours under an oxygen atmosphere to prepare an oxidized pitch powder, and then the oxide pitch powder is 100 to 2000 kg at room temperature. A method for producing a high density, high-temperature carbon molded article using a pitch, which is characterized by firing at a pressure of / cm 2 and firing at a temperature of 900 ° C. or higher under an inert atmosphere. 1항에 있어서, 상기 산화처리시 핏치분말을 회전반응관에 장입하고 1~100rpm으로 회전시킴을 특징으로 하는 방법.The method according to claim 1, wherein, during the oxidation treatment, the pitch powder is charged into a rotary reaction tube and rotated at 1 to 100 rpm. 1항에 있어서, 상기 산화핏치 분말의 산소함량이 7~15중량%임을 특징으로 하는 방법.The method of claim 1, wherein the oxygen content of the oxide pitch powder is 7 to 15% by weight. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940038970A 1994-12-29 1994-12-29 Process for the preparation of carbon composite material KR970008694B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940038970A KR970008694B1 (en) 1994-12-29 1994-12-29 Process for the preparation of carbon composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940038970A KR970008694B1 (en) 1994-12-29 1994-12-29 Process for the preparation of carbon composite material

Publications (2)

Publication Number Publication Date
KR960022330A true KR960022330A (en) 1996-07-18
KR970008694B1 KR970008694B1 (en) 1997-05-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940038970A KR970008694B1 (en) 1994-12-29 1994-12-29 Process for the preparation of carbon composite material

Country Status (1)

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KR (1) KR970008694B1 (en)

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Publication number Publication date
KR970008694B1 (en) 1997-05-28

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