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실리콘 카바이드 도가니용 325mesh 블랙 SIC

$900.00 /MT

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탄화규소(SiC) 도가니는 흑연, 점토흑연, 석영과 같은 기존 도가니 소재에 비해 여러 가지 장점을 제공하며, 특히 고온 및 반응성 환경에서 유용합니다.  탄화규소 도가니 사용의 주요 이점은 다음과 같습니다 .

1. 높은 열전도도

  • SiC는 뛰어난 열전도도(≈120 W/m·K)를 가지고 있어 빠르고 균일한 가열을 보장합니다.

  • 알루미나나 석영과 같은 소재에 비해 열 응력과 균열이 줄어듭니다.

2. 뛰어난 열 충격 저항성

  • SiC는 균열 없이 급격한 온도 변화를 견딜 수 있어 갑작스러운 가열이나 냉각이 필요한 공정에 이상적입니다.

3. 고온 안정성

  • 최대  1600°C  (불활성/환원 분위기) 및 최대  1400°C의  산화 조건에서 효과적으로 작동합니다.

  • 흑연(600°C 이상에서 산화됨)과 알루미나(고온에서 연화됨)보다 성능이 뛰어납니다.

4. 뛰어난 내화학성

  • 용융 금속(Al, Cu, Zn), 소금, 슬래그로 인한 부식을 방지합니다.

  • 알루미늄이나 실리콘과 같은 반응성 금속에 노출되었을 때 흑연보다 내구성이 더 뛰어납니다.

5. 기계적 강도 및 내구성

  • 높은 경도(~9.5 모스)와 압축 강도는 마모와 변형을 줄입니다.

  • 점토-흑연이나 석영 도가니보다 수명이 더 깁니다.

6. 산화 저항성

  • 공기 중에 보호용 SiO₂ 층을 형성하여 급격한 분해를 방지합니다(침식되는 흑연과 달리).

7. 비습윤 표면

  • 용융 금속의 달라붙음을 최소화하여 주입과 세척이 더 쉬워집니다.

8. 에너지 효율

  • 더 빠른 열전달로 용융 응용 분야에서 에너지 소비가 줄어듭니다.

일반적인 화학 분석

일반적인 물리적 특성

SiC

≥98%

경도:

모스:9.15

이산화규소

≤1%

녹는점:

2250℃에서 승화

과산화수소(H2O3)

≤0.5%

최대 사용 온도:

1900℃

철2산화물(Fe2O3)

≤0.3%

비중:

3.2-3.45g/cm3

FC

≤0.3%

체적 밀도(LPD):

1.2~1.6g/cm3

자기 함량

≤0.02%

색상:

검은색

 

 

입자 모양:

육각형

SiC 도가니의 응용 분야:

  • 금속 용해 및 주조  (Al, Cu, Zn, 귀금속)

  • 반도체 공정  (Si, GaAs 결정 성장)

  • 유리 및 세라믹 생산

  • 고온 화학 반응

 

SiC 도가니는 내구성, 열충격 저항성, 그리고 화학적 안정성이 중요한 고온, 고성능 응용 분야 에 이상적입니다   . 가혹한 환경에서 기존 도가니 소재보다 성능이 뛰어나지만, 초기 비용이 높습니다.

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