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China Factory for White Fused Alumina Abrasive - Micro Sodium White Fused Alumina – Yufa
Compared With β-Al2O3 And α-Al2O3 Sodium oxide is a harmful impurity to white corundum. It forms β-Al2O3 with alumina in the molten state, and the amount of production increases with the increase of sodium oxide content. Na2O in white corundum mainly appears in the form of Na2O·11AL2O3 (β-Al2O3). For example, if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced with it will contain more than 10% β-Al2O3. Compared with β-Al2O3, α-Al2O3 has ‘three highs... -
Best quality Mgo Alumina Spinels - Fused Alumina Magnesia Spinel – Yufa
Chemical Composition Chemical Composition MA-72 MA-75 MA-78 MA-85 Al2O3%≥ 70 – 74 74 – 77 77 – 82 82 – 87 MgO%≤ 24 – 28 21 – 24 16 – 21 11 – 16 SiO2%≤ 0.4 0.4 0.4 0.4 Fe2O3%≤ 0.25 0.25 0.25 0.25 Apparent Porosity %≤ 5 3 3 3 Bulk Density g/cm3≥ 3.3 3.3 3.3 3.3 Grit and Fine Powder 0.1-0 mm, 0.2-0 mm, 0.5-0 mm, 1-0 mm, 1-0.5 mm, 3-1 ... -
China Supplier White Fused Alumina Fine Powder - Micro Sodium White Fused Alumina – Yufa
Compared With β-Al2O3 And α-Al2O3 Sodium oxide is a harmful impurity to white corundum. It forms β-Al2O3 with alumina in the molten state, and the amount of production increases with the increase of sodium oxide content. Na2O in white corundum mainly appears in the form of Na2O·11AL2O3 (β-Al2O3). For example, if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced with it will contain more than 10% β-Al2O3. Compared with β-Al2O3, α-Al2O3 has ‘three highs... -
Reasonable price High Quality Calcined Alumina - Calcined Alumina (PA) Series for Polishing – Yufa
Specification Model No. Chemical Composition(%) Mesh Grain Size Ｄ50 +325 Mesh Original Crystal Conversion Rate Oil Absorption Value Cutting force Glossiness Al2O3 μm % μm % PA200S ≥99 65-75 >65 >95 +++++ ++ PA500S ≥99 300 5.5-6.5 <3 2.5-3.5 >95 +++++ ++ PA200 ≥99 200 18-22 50-55 6.0-10 >95 10-20 +++++ ++ PA500 ≥99 500 14-16 <30 >95 23 +++++ ++ PA800 ≥99 800 5.5-6.5 <5 >95 17 +++++ ++ PA2000 ≥99 2000 ~6 <1 5.5-6.0 95 14.2 +++ +... -
OEM Factory for Ceramic Insulators - Alumina Ceramic Products – Yufa
Ceramic Insulators for Spark plugs Model No./Characteristic index F series F series Φ10mm, Φ12mm lengthened series Density of Ceramic (g/cm3) ≥3.70 ≥3.70 ≥3.70 Dielectric Strength (KV) ≥38 ≥38 ≥38 Flexural Strength (N) ≥600 ≥450 ≥380 Appearance Color White White White Alumina Ceramic Tube Mainly used for the protection of the temperature sensor, make the temperature sensor and outside isolation, decrease or prevent component... -
China wholesale Fused Magnesium Aluminate Spinel - Fused Alumina Magnesia Spinel – Yufa
Chemical Composition Chemical Composition MA-72 MA-75 MA-78 MA-85 Al2O3%≥ 70 – 74 74 – 77 77 – 82 82 – 87 MgO%≤ 24 – 28 21 – 24 16 – 21 11 – 16 SiO2%≤ 0.4 0.4 0.4 0.4 Fe2O3%≤ 0.25 0.25 0.25 0.25 Apparent Porosity %≤ 5 3 3 3 Bulk Density g/cm3≥ 3.3 3.3 3.3 3.3 Grit and Fine Powder 0.1-0 mm, 0.2-0 mm, 0.5-0 mm, 1-0 mm, 1-0.5 mm, 3-1 ... -
New Arrival China Magnesium Aluminate Spinel - Fused Alumina Magnesia Spinel – Yufa
Chemical Composition Chemical Composition MA-72 MA-75 MA-78 MA-85 Al2O3%≥ 70 – 74 74 – 77 77 – 82 82 – 87 MgO%≤ 24 – 28 21 – 24 16 – 21 11 – 16 SiO2%≤ 0.4 0.4 0.4 0.4 Fe2O3%≤ 0.25 0.25 0.25 0.25 Apparent Porosity %≤ 5 3 3 3 Bulk Density g/cm3≥ 3.3 3.3 3.3 3.3 Grit and Fine Powder 0.1-0 mm, 0.2-0 mm, 0.5-0 mm, 1-0 mm, 1-0.5 mm, 3-1 ... -
High Quality for Calcined Active Alumina - Ceramic Granulation Powder (GA) Series for Alumina Ceramics – Yufa
Specification Series No./Features YF-997 YF-99D YF-99T YF-95D YF-95S Alumina Content ≥99% ≥99% ≥99% ≥95% ≥95% Original Particle Size(μm） 1.0-1.5 1.2-1.8 1.2-1.8 ~3 ~3 Apparent Density (g/cm3) ≥1.1 ≥1.05 ≥1.05 ≥1.15 ≥1.15 Density of Ceramic (g/cm3) ≥3.90 ≥3.87 ≥3.87 ≥3.70 ≥3.70 Ceramic Firing Temperature 1680℃-1750℃ 1680℃-1750℃ 1680℃-1750℃ 1680℃ 1680℃ Shrinkage of Ceramic 1.21 1.21 1.21 1.17−1.18 1.17−1.18 Appearance Color Yellow Yellow Yellow White White Moisture of Granu... -
OEM/ODM Supplier Aluminium Oxide - White Fused Alumina for Abrasives – Yufa
PEFA F Grain & Micro Powder: Chemical Composition And Particle Size Composition Standard Chemical Composition Chemical Composition Na2O%≤ Al2O3%≥ SiO2%≤ Fe2O3%≤ Magnetic Object %≤ Common 0.3 99.4 0.1 0.05 0.001 Micro Sodium 0.06 99.7 0.1 0.03 0.001 F12 - F220 Particle Size Composition Grain Size Marking Ultra Coarse Grains Coarse Grains Medium Grains Mixed Grains Fine Grains 100% Pass The Following Sieves/Sieve Number Can... -
OEM China Alumina Micro Powder - Micro Sodium White Fused Alumina – Yufa
Compared With β-Al2O3 And α-Al2O3 Sodium oxide is a harmful impurity to white corundum. It forms β-Al2O3 with alumina in the molten state, and the amount of production increases with the increase of sodium oxide content. Na2O in white corundum mainly appears in the form of Na2O·11AL2O3 (β-Al2O3). For example, if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced with it will contain more than 10% β-Al2O3. Compared with β-Al2O3, α-Al2O3 has ‘three highs... -
Hot-selling Al2o3 Calcined Alumina - Low Sodium Calcined Alumina (CA) Series for Ceramics – Yufa
Specification Model No. Chemical Composition(%) True Density Apparent Density Grain Size D50 +325 Mesh Original Crystal D50 Features Recommended Applications Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤% g/cm3 ≥ g/cm3 ＞ D50 (μm) ＜% D50(μm) CA1A 99.5 0.05 0.03 0.10 0.1 3.97 >0.95 ~70 5.0-6.0 1. High temperature calcination 2. Low sodium 3. Large crystal 4. High conversion rate 5. Stable shrinkage. Good fluidity 6. High insulation performance 7. High mechanical strength 1. ... -
2021 High quality Electro Corundum - Fused Dense Corundum – Yufa
Chemical Composition Chemical Composition Grit > 0.1mm Typical Value Fine Powder ≤ 0.1mm Typical Value Al2O3%≥ 99.2 99.6 99 99.4 SiO2%≤ 0.5 0.4 0.7 0.5 Fe2O3%≤ 0.1 0.03 0.1 0.05 TiO2%≤ 0.1 0.05 0.1 0.05 CaO%≤ MgO%≤ Na2O%≤ C%≤ 0.08 0.12 0.1 Apparent porosity %≤ 2 0.8 2 0.8 Bulk Density g/cm3≥ 3.9 3.93 True Density g/cm3≥ 3.96 3.99 3.96 3.98 Grit and Fine Powder 0.1-0 mm,...
