供应绿碳化硅，绿碳化硅磨料，绿碳化硅微粉

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苏州金星磨料有限公司

棕刚玉

棕刚玉磨料,棕刚玉,棕刚玉微粉,棕刚玉精密铸造砂
BROWN FUSED ALUMINA(A)
棕刚玉磨料以铝矾土为主要原料经高温熔炼而成。呈棕褐色，硬度高、韧性大。用其制造的磨具，适用于碳素钢、可锻铸铁、硬青铜等的磨削。此外在耐火材料、化工添加剂、精密铸造及防滑材料等方面也有广泛应用。
The main material of brown fused alumina is bauxite,which is electrically fused in high temperature.It is brown and features high hardness and toughness.The abrasive tools made of it are suitable for the grinding of car bon steel,malleable castiron,hard bronze,etc.In addition,they are also used as refractory materials,chemical additive,precision founding and anti-sliding materrials.

牌号（代号）Code	粒度范围Grit size range	化学成分%Chemical composition%
		AI2O3	TiO2	CaO
A A-P1	F4-F80	95.0-97.5	1.5-3.8	≤0.45
	F90-F1500	94.0-97.5
	F180-F220	93.0-97.5
	F220(P220) 以细FINER	≥92.0

<br/>棕刚玉磨料物理性能：Physical property<br/>

基本矿物Basic minerals	晶体尺寸Crystal size?? μm	真比量 True density?? g/cm3	堆积密度Bulk density? g/cm3	显微硬度Knoop hardness g/mm2
α— AI2O3	300~1200	≥3.90	1.5~1.95	1800~2200