브라운 용융 알루미나는 소성 보크사이트를 고온(약 2000도 섭씨)의 전기 아크로에서 점진적인 용융 환원을 통해 제조된 제품입니다. 화학 조성은 주로 Al 2 O 3 (94.5-97%)과 잔류량의 TiO 2 , SiO 2 , Fe 2 O 3 , CaO 및 MgO로 구성됩니다.
브라운 알루미늄 산화물은 좋은 인성, 높은 기계적 저항성 및 경도(모스 척도 9)가 특징입니다. 재료의 미소경도는 약 1900kG/mm 2 에 이릅니다 . 비중(밀도)은 3.90+/-0.05 g/cm 3 입니다 . 크기에 따른 벌크 밀도는 1.52-1.87 g/cm 3 입니다 . 비교적 높은 열전도도와 낮은 열팽창을 가지고 있습니다. 전기에 관해서는 절연체입니다.
| 갈색 용융 알루미나 JIS 360# | |
| 화학성분 | 백분율 |
| 알루미나 이드 ( Al2O3 ) | ≥94.0% |
| 철산화철(Fe2O3) | ≤0.5% |
| 2 시 에 | ≤0.30% |
| 이산화규소 2 | ≤1.50% |
| 이산화티타늄(TiO2) | 1.5~3.8% |
| 높은 | ≤0.30% |
| 물리화학적 지수 | |
| 체적 밀도 | 1.53-1.99g/cm3 |
| 입자 밀도 | 3.90g/cm3 |
| 모스 경도 | 9 |
브라운 융합 알루미늄 산화물 분말은 결합 연마 도구와 래핑 및 연마 공정에서 일반적인 연마 응용 분야에 사용하도록 특별히 제조된 완벽한 소재입니다. 알루미늄 산화물은 다이아몬드, 탄화붕소 및 탄화규소보다 경도와 연마 용량이 낮지만, 철 소재 연삭, 단단하고 단단한 소재 마무리, 가공 비용이 중요할 때 세라믹 부품 채우기에 널리 사용됩니다.
| 목 | D0（하나） | D3(음) | D50(하나) | D94(음) |
| #240 | ＜127 | ＜103 | 57.0±3.0 | >40 |
| #280 | ＜112 | ＜87 | 48.0±3.0 | >33 |
| #320 | ＜98 | ＜74 | 40.0±2.5 | >27 |
| #360 | ＜86 | ＜66 | 35.0±2.0 | >23 |
| #400 | ＜75 | ＜58 | 30.0±2.0 | >20 |
| #500 | ＜63 | ＜50 | 25.0±2.0 | >16 |
| #600 | ＜53 | ＜41 | 20.0±1.5 | >13 |
| #700 | ＜45 | ＜37 | 17.0±1.5 | >11 |
| #800 | ＜38 | ＜31 | 14.0±1.0 | >9.0 |
| #1000 | ＜32 | ＜27 | 11.5.±1.0 | >7.0 |
| #1200 | ＜27 | ＜23 | 9.5±0.8 | >5.5 |
| #1500 | ＜23 | ＜20 | 8.0±0.6 | >4.5 |
| #2000 | ＜19 | ＜17 | 6.7±0.6 | >4.0 |
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