品牌	東升

棕剛玉
　　棕剛玉是以鋁礬土為主要原料，經(jīng)高溫溶煉而成。呈棕褐色、硬度高、韌性大。用其制造的磨具，適用于碳素鋼、可鍛鑄鐵、硬青銅等的磨削。此外在耐火材料、化工添加劑、精密鑄造及防滑材料等方面也有廣泛應(yīng)用。
The main material lr brown fused alumina is bauxite.which is electrically fused in high temperature.it is brown and featured high hardness and toughness.The abrasive tools made of it are suitable for the grinding of carbon steel.malleable cast iron,hard bronze.etc.ln addition.they are used as refractory materials,chemical additive,precision founding and anti-sliding materials
化學(xué)成份：

牌號（代號） Code	粒度范圍 Grit size range	化學(xué)成分%Chemical composition%
		Al2O3	TiO3	CaO
A A-P1	F4-F80 (P12-P80)	95.0-97.5	1.5-3.8	≤0.45
	F90-F150 (P100-P150)	94.0-97.5
	F180-F220 (P180-P220)	93.0-97.5
	F220(P220)	≥92.0

物理性能：
Physical property

基本礦物 Basic minerals	晶體尺寸 Crystal size μm	真比重 True density g/cm3	堆積密度 Bulk density g/ cm3	顯微硬度 Knoop hardness kg/mm2
α-Al2O3	300-12000	≥3.90	1.5-1.95	1800-2200

水洗棕剛玉P砂
Water-washed P grains of brown fused alumina

粒度號Grit size	清潔度Cleanness
AP50	120
AP80	130

棕剛玉整形砂
The shaped brown fused slumina

粒度號 Grit size	堆積密度 Bulk density g/cm3	粒度號 Grit size	堆積密度 Bulk density g/cm3
F24	1.8-1.95	F80	1.61-1.71
F30	1.77-1.90	F90	1.59-1.71
F36	1.75-1.90	F100	1.57-1.68
F40	1.73-1.86	F120	1.54-1.68
F46	1.70-1.84	F150	1.50-1.65
F54	1.68-1.82	F180	1.48-1.62
F60	1.66-1.80	F220	1.45-1.55
F70	1.63-1.76