oxit nhôm màu hồng
Oxit alumina màu hồng là alumina bayer, được nung chảy bằng điện ở nhiệt độ cao, được bổ sung đúng lượng crom oxy hóa. Nó có màu hồng. Độ cứng của nó gần bằng, nhưng độ dẻo dai cao hơn mức đó hoặc WA.
Thành phần hóa học
Sự chỉ rõ | Crom thấp | Crom trung bình | crom cao | ||||||
Al2O3 (%) | Cr2O3 (%) | Na2O (%) | Al2O3 (%) | Cr2O3 (%) | Na2O (%) | Al2O3 (%) | Cr2O3 (%) | Na2O (%) | |
F12-F80 | ≥98,50 | 0,20-0,45 | .50,50 | ≥98,20 | 0,45-1,00 | .50,55 | ≥97,40 | 1,00-2,00 | .50,55 |
F90-F150 | ≥98,50 | .50,50 | ≥98,20 | .60,60 | ≥97,00 | .60,60 | |||
F180-F220 | ≥98,50 | .50,50 | ≥98,80 | .70,70 | ≥96,50 | .70,70 | |||
Tài sản vật chất
Khoáng sản cơ bản | Kích thước tinh thể mm | Mật độ thực g/cm3 | Mật độ lớn g/cm3 | Độ cứng của nút thắt kg/mm2 |
α-Al2O3 | 600-2000 | ≥3,90 | 1,40-1,91 | 2200-2300 |
Ứng dụng:
Các công cụ mài mòn được làm từ nó có độ bền tuyệt vời và độ sạch xử lý cao, phù hợp cho việc mài chính xác các dụng cụ đo, trục chính của máy tiện, dụng cụ và bộ phận máy móc, phôi gia công ren và bộ lấy mẫu, v.v.
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