KR950000609A - Carbon molded article and its manufacturing method - Google Patents

Carbon molded article and its manufacturing method Download PDF

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Publication number
KR950000609A
KR950000609A KR1019930010995A KR930010995A KR950000609A KR 950000609 A KR950000609 A KR 950000609A KR 1019930010995 A KR1019930010995 A KR 1019930010995A KR 930010995 A KR930010995 A KR 930010995A KR 950000609 A KR950000609 A KR 950000609A
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South Korea
Prior art keywords
molded article
carbon molded
manufacturing
molded body
anisotropic pitch
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KR1019930010995A
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Korean (ko)
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KR960004380B1 (en
Inventor
김제영
김철우
박양덕
Original Assignee
박득표
포항종합제철 주식회사
백덕현
재단법인산업과학기술연구소
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Priority to KR1019930010995A priority Critical patent/KR960004380B1/en
Publication of KR950000609A publication Critical patent/KR950000609A/en
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    • 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
    • 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
    • C04B35/626—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
    • C04B35/6261—Milling
    • C04B35/62615—High energy or reactive ball milling
    • 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
    • C04B35/62625—Wet mixtures
    • C04B35/6264—Mixing media, e.g. organic solvents
    • 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
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • 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
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • 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
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

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

Abstract

본 발명은 기계용 부품, 전기부품, 화학장치 및 야금용 부품등에 사용되는 탄소성형체 및 그 제조방법에 관한 것으로서 탄소성형체를 제조함에 있어서 원료의 성질이 다른 두종류의 원료를 혼합하여 성형체를 제조하므로서 소성시 승온속도를 단일원료를 사용하였을 때보다 빠르게하여도 성형체가 유지되며, 함침과정이 생략된 1회 소성으로 탄소성형체를 제조하고자 하는데, 그 목적이 있다.The present invention relates to a carbon molded product used in mechanical parts, electrical parts, chemical devices, metallurgy parts, and the like, and to a method of manufacturing the same. Although the molded body is maintained even if the temperature increase rate during firing is faster than using a single raw material, it is intended to produce a carbon molded body by one-time firing without the impregnation process.

본 발명은 베타수지의 함량이 2∼6%인 반성코크스와 연화점이 300℃ 이상인 잠재적 이방성 핏치를 무게비로 90 : 10∼80 :20이 되도록 혼합한 다음, 적절한 조건으로 분쇄, 건조, 성형 및 소성하여 제조된 탄소성 형체 및 그 제조방법을 그 요지로 한다.The present invention is to mix the semi-coke with a beta resin content of 2 to 6% and the potential anisotropic pitch having a softening point of 300 ℃ or more in a weight ratio of 90:10 to 80:20, and then pulverized, dried, molded and fired under appropriate conditions. The carbonaceous molded body manufactured by the present invention and its manufacturing method are made into the summary.

Description

탄소성형체 및 그 제조방법Carbon molded article and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (4)

탄소성형체를 제조하는 방법에 있어서, 베타수지의 함량이 2~6%인 반성코크스와 연화점이 300℃ 이상인 잠재적 이방성 핏치를 출발원료로 준비하는 단계; 상기 반성코크스와 잠재적 이방성 핏치의 무게비가 90:10 ~ 80:20이 되도록 혼합하는 단계; 상기 혼합물을 볼밀에 장입한 후, 통상의 혼합비로 물과 에탄올을 혼합한 혼합용매를 첨가하여 100메쉬이하의 입도를갖도록 분쇄하는 단계; 상기 분쇄물을 통상의 방법으로 여과 및 건조한 후 1500~2000kg/㎠의 성형압으로 성형하는 단계;및 상기 성형체를 불활성 분위기하에 700℃ 이상의 온도로 소성하는 단계를 포함하여 구성됨을 특징으로 하는 탄소성형체의 제조방법.A method for producing a carbon molded article, the method comprising: preparing a semi-coke having a beta resin content of 2 to 6% and a potential anisotropic pitch having a softening point of 300 ° C. or more as a starting material; Mixing the weight ratio of the reflective coke and the potential anisotropic pitch to be 90:10 to 80:20; Charging the mixture to a ball mill and pulverizing the mixture to a particle size of 100 mesh or less by adding a mixed solvent in which water and ethanol are mixed at a normal mixing ratio; Filtering and drying the pulverized product in a conventional manner, and then molding the powder at a molding pressure of 1500 to 2000 kg / cm 2; and calcining the molded body at a temperature of 700 ° C. or higher under an inert atmosphere. Manufacturing method. 제1항에 있어서, 소성시 승온속도가 5~7℃/min인 것을 특징으로 하는 탄소성형체의 제조방법.The method of claim 1, wherein the temperature increase rate during firing is 5 ~ 7 ℃ / min. 제1항 또는 제2항에 있어서, 소성시 소성시간이 60분인 것을 특징으로하는 탄소성형체의 제조방법.The method for producing a carbon molded article according to claim 1 or 2, wherein the firing time during firing is 60 minutes. 반성코크스와 잠재적 이방성 핏치를 출발원료로 하여 제조된 탄소 성형체에 있어서, 곡강도가 600~1000kgf/이고, 그리고 겉보기밀도가 1.4g/㎤ 이상인 것을 특징으로 하는 탄소성형체.A carbon molded article produced from a semicoke and a potential anisotropic pitch as a starting material, wherein the carbon molded article has a bending strength of 600 to 1000 kgf / and an apparent density of 1.4 g / cm 3 or more. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930010995A 1993-06-16 1993-06-16 Process for the preparation of carbon matrix KR960004380B1 (en)

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KR1019930010995A KR960004380B1 (en) 1993-06-16 1993-06-16 Process for the preparation of carbon matrix

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Application Number Priority Date Filing Date Title
KR1019930010995A KR960004380B1 (en) 1993-06-16 1993-06-16 Process for the preparation of carbon matrix

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KR950000609A true KR950000609A (en) 1995-01-03
KR960004380B1 KR960004380B1 (en) 1996-04-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100910455B1 (en) * 2002-12-27 2009-08-04 주식회사 포스코 Carbon Formed Body

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100879332B1 (en) * 2002-12-24 2009-01-19 재단법인 포항산업과학연구원 Method of preparing carbonaceous material by using cokes dust
KR20180044664A (en) * 2016-10-24 2018-05-03 대원강업주식회사 Sectional clip for leap spring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100910455B1 (en) * 2002-12-27 2009-08-04 주식회사 포스코 Carbon Formed Body

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