KR100990574B1 - 흑연 재료 및 흑연 재료의 제조 방법 - Google Patents
흑연 재료 및 흑연 재료의 제조 방법 Download PDFInfo
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Abstract
Description
Claims (16)
- 다수의 기공을 함유하는 흑연을 포함하며, 상기 흑연과 다수의 기공이 미세 구조를 형성하고, 상기 미세구조의 단면을 주사 전자 현미경으로 관찰하였을 때, 상기 단면에 나타난 기공의 수가 6000 ㎛2 당 250개 이상이고, 상기 단면에 나타난 기공의 평균 면적이 5 ㎛2 이하이고, 상기 단면에 나타난 기공의 평균 편평률이 0.55 이하인 흑연 재료.
- 제1항에 있어서, 상기 흑연 재료의 벌크 밀도가 1.78 내지 1.86 g/㎝3인 흑연 재료.
- 제1항 또는 제2항에 있어서, 상기 기공의 최대 장축이 20 ㎛ 이하인 흑연 재료.
- 제1항 또는 제2항에 있어서, 상기 흑연 재료의 쇼어 경도가 55 내지 80인 흑연 재료.
- 제1항 또는 제2항에 있어서, 상기 흑연 재료의 전기 저항이 1,000 내지 2,300 μΩ㎝인 흑연 재료.
- 제1항 또는 제2항에 따른 흑연 재료를 포함하는 방전 가공용 전극.
- 크기가 5 ㎛ 이하인 탄소질 입자와 피치를 혼합하는 단계;상기 혼합된 탄소질 입자와 피치를 이들의 휘발성 물질 함량을 제어하면서 가열하여 2차 원료를 수득하는 단계;상기 2차 원료를 분쇄하여 2차 원료 입자를 수득하는 단계;상기 2차 원료 입자를 성형하는 단계;상기 성형된 2차 원료 입자를 소성시키는 단계; 및상기 소성된 2차 원료 입자를 흑연화하는 단계를 포함하는, 흑연 재료의 제조 방법.
- 3 내지 10 중량%의 양의 탄소질 입자와 피치를 혼합하는 단계;상기 혼합된 탄소질 입자와 피치를 이들의 휘발성 물질 함량을 제어하면서 가열하여 2차 원료를 수득하는 단계;상기 2차 원료를 분쇄하여 2차 원료 입자를 수득하는 단계;상기 2차 원료 입자를 성형하는 단계;상기 성형된 2차 원료 입자를 소성시키는 단계; 및상기 소성된 2차 원료 입자를 흑연화하는 단계를 포함하는, 흑연 재료의 제조 방법.
- 제7항 또는 제8항에 있어서, 상기 피치의 연화점이 50 ℃ 이하인 제조 방법.
- 제7항 또는 제8항에 있어서, 휘발성 물질 함량이 6 내지 12 %가 되도록 상기 혼합된 탄소질 입자와 피치의 가열이 수행되는 제조 방법.
- 제7항 또는 제8항에 있어서, 상기 2차 원료 입자의 중앙값 크기가 5 내지 10 ㎛인 제조 방법.
- 제7항 또는 제8항에 있어서, 상기 2차 원료 입자의 크기가 1 내지 80 ㎛인 제조 방법.
- 삭제
- 다수의 기공을 함유하는 흑연을 포함하며, 상기 흑연과 다수의 기공이 미세구조를 형성하고, 상기 미세구조의 단면을 주사 전자 현미경으로 관찰하였을 때, 상기 단면에 나타난 기공의 수가 6000 ㎛2 당 250개 이상이고, 상기 단면에 나타난 기공의 평균 면적이 5 ㎛2 이하이고, 상기 단면에 나타난 기공의 평균 편평률이 0.55 이하인 흑연 재료로 제조된 탄성체.
- 제14항에 있어서, 탄성체는 코일 용수철 형태를 형성하도록 흑연 재료로 제조된 원통형 기재 물질의 외주를 원통형 기재 물질의 것과 동일한 중심축을 갖는 나선형 홈이 있게 절삭함으로써 형성되는 것인 탄성체.
- 다수의 기공을 함유하는 흑연을 포함하며, 상기 흑연과 다수의 기공이 미세구조를 형성하고, 상기 미세구조의 단면을 주사 전자 현미경으로 관찰하였을 때, 상기 단면에 나타난 기공의 수가 6000 ㎛2 당 250개 이상이고, 상기 단면에 나타난 기공의 평균 면적이 5 ㎛2 이하이고, 상기 단면에 나타난 기공의 평균 편평률이 0.55 이하인 흑연 재료를 사용하여 원통형 기재 물질을 제조하는 단계;상기 원통형 기재 물질의 내주에 접착제를 사용하여 주상체를 고정시킴으로써 작업편을 수득하는 단계;작업편을 중심축 주위로 회전시키면서 원통형 기재 물질의 중심축에 평행하게 절삭공구를 상대적으로 이동시켜 원통형 기재 물질을 주상체에 이르는 나선형 홈이 있게 절삭하는 단계;나선형 홈이 있게 절삭된 작업편을 가열하여 접착제를 분해시키는 단계; 및상기 원통형 기재 물질로부터 주상체를 제거하는 단계를 포함하는, 탄성체의 제조 방법.
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JP2008092704A JP5277487B2 (ja) | 2008-03-31 | 2008-03-31 | 黒鉛製弾性体及びその製造方法 |
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KR101079665B1 (ko) | 2009-06-23 | 2011-11-03 | 극동씰테크 주식회사 | 저차원탄소 함유 탄소복합체 제조 방법 및 탄소블록 제조 방법 |
JP5520564B2 (ja) | 2009-10-13 | 2014-06-11 | 東洋炭素株式会社 | 炭素材料及びその製造方法 |
CN105152166B (zh) * | 2011-10-21 | 2017-08-08 | 昭和电工株式会社 | 石墨材料的制造方法和锂离子二次电池用电极的制造方法 |
CN102794828B (zh) * | 2012-08-27 | 2016-03-02 | 北京博宇半导体工艺器皿技术有限公司 | 制备筒状石墨加热器用固定棒及加热器的制造方法 |
US8999898B2 (en) * | 2013-03-15 | 2015-04-07 | Superior Graphite Co. | Drilling fluid additive for loss circulation and wellbore strengthening |
JP2014181168A (ja) * | 2013-03-21 | 2014-09-29 | Ibiden Co Ltd | 黒鉛材料の製造方法 |
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JP6097651B2 (ja) * | 2013-07-29 | 2017-03-15 | イビデン株式会社 | 黒鉛材料の製造方法 |
AU2020279748A1 (en) * | 2019-05-20 | 2021-12-23 | Battelle Energy Alliance, Llc | Spark plasma sintering methods for fabricating dense graphite |
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