Product details
Description:
AMICR is a kind of brown fused aluminum oxide microgrit powder.
Water classifying controlling assures accurate particle size distribution, acid washing eliminates the impurity, then to add alkali and water to do the neutralization.
AMICR has high toughness and high anti-crushing ability, it is able to withstand greater pressure.
AMP is a brown fused aluminum oxide microgrit FEPA P grain, it is made by selecting high quality brown fused alumina lumps, carefully crushing to keep satisfied shape to balance processing efficiency and working life, water classifying to assure the accurate grain size distribution, acid wash, alkali wash and water wash to reach a top level grains surface cleanness.
Applications:
AMICR is suitable for making bonded abrasive tools, wet or dry sand blasting, ultrafine grinding and polishing, to produce advanced refractory and investment casting.
AMICR is suitable for processing carbon steel, alloy steel, cast iron, hard bronze and semiconductor materials.
AMP can be used for making metallographic abrasive paper, ultra precision polishing abrasive cloth for polishing or sanding of metal, spring steel, glass or hard wood.
Chemical Analysis:
AMICR |
Al2O3 |
TiO2 |
||
Promised value |
Testing value |
Promised value |
Testing value |
|
F230-F1200 |
92%min. |
93.33% |
4.80%max. |
4.38%% |
High speed belt |
General sheet |
High speed belt |
General sheet |
|
AMP |
92%min. |
90%min. |
1.50-3.80% |
4.50%max. |
Physical Properties:
| Color | Light brown |
| Shape | Angular or blocky edge sharp |
| Crystal Form | Alpha alumina |
| Specific Gravity | 3.85 g/cm3 min. |
| Micro Hardness | 1800-2200kg/mm2 |
| Magnetic Material | 0.0025% |
Microgrit Sizes Available for AMICR :
FEPA “F” 230, 240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200, 1500, 2000
JIS 240, 280, 320, 360, 400, 500, 600, 700, 800, 1000, 1200, 1500, 2000, 2500, 3000, 4000, 6000, 8000.
Microgrit Sizes Available for AMP
FEPA”P” 240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200, 1500, 2000, 2500
Grain Size Distribution
TABLE 1
Grit F230-F2000 Grit size distribution (Standard Werte der Mikro-F-Reihe) | ||||
Grit number |
ds0 value max., micron |
ds3 value max., micron |
ds50 value, micron |
ds94 value min., micron |
F230 |
----- |
82.0 |
53.0±3.0 |
34.0 |
F240 |
----- |
70.0 |
44.5±2.0 |
28.0 |
F280 |
----- |
59.0 |
36.5±1.5 |
22.0 |
F320 |
----- |
49.0 |
29.2±1.5 |
16.5 |
F360 |
----- |
40.0 |
22.8±1.5 |
12.0 |
F400 |
----- |
32.0 |
17.3±1.0 |
8.0 |
F500 |
----- |
25.5 |
12.8±1.0 |
5.0 |
F600 |
----- |
19.0 |
9.3±1.0 |
3.0 |
F800 |
----- |
14.0 |
6.5±1.0 |
2.0 |
F1000 |
----- |
10.0 |
4.5±0.8 |
1.0 |
F1200 |
----- |
7.0 |
3.0±0.5 |
1.0(80% location) |
F1500 |
----- |
5.0 |
2.0±0.4 |
0.8(80% location) |
F2000 |
----- |
3.4 |
1.2±0.3 |
0.5(80% location) |
TABLE 2
Grit F230-F1200 Grit size distribution (Sedimen-tation tube method) | ||||
Grit number |
ds0 value max., micron |
ds3 value max., micron |
ds50 value, micron |
ds95 value min., micron |
F230 |
120 |
77.0 |
55.7±3.0 |
38.0 |
F240 |
105 |
68.0 |
47.5±2.0 |
32.0 |
F280 |
90 |
60.0 |
39.9±1.5 |
25.0 |
F320 |
75 |
52.0 |
32.8±1.5 |
19.0 |
F360 |
60 |
46.0 |
26.7±1.5 |
14.0 |
F400 |
50 |
39.0 |
21.4±1.0 |
10.0 |
F500 |
45 |
34.0 |
17.1±1.0 |
7.0 |
F600 |
40 |
30.0 |
13.7±1.0 |
4.6 |
F800 |
35 |
26.0 |
11.0±1.0 |
3.5 |
F1000 |
32 |
23.0 |
9.1±0.8 |
2.4 |
F1200 |
30 |
20.0 |
7.6±0.5 |
2.4(80% location) |
TABLE 3
Grit #240-#3000 Grit size distribution (Sedimen-tation tube method) | ||||
Grit number |
ds0 value max., micron |
ds3 value max., micron |
ds50 value, micron |
ds94 value min., micron |
#240 |
127.0 |
90.0 |
60.0±4.0 |
48.0 |
#280 |
112.0 |
79.0 |
52.0±3.0 |
41.0 |
#320 |
98.0 |
71.0 |
46.0±2.5 |
35.0 |
#360 |
86.0 |
64.0 |
40.0±2.0 |
30.0 |
#400 |
75.0 |
56.0 |
34.0±2.0 |
25.0 |
#500 |
65.0 |
48.0 |
28.0±2.0 |
20.0 |
#600 |
57.0 |
43.0 |
24.0±1.5 |
17.0 |
#700 |
50.0 |
39.0 |
21.0±1.3 |
14.0 |
#800 |
46.0 |
35.0 |
18.0±1.0 |
12.0 |
#1000 |
42.0 |
32.0 |
15.5±1.0 |
9.5 |
#1200 |
39.0 |
28.0 |
13.0±1.0 |
7.8 |
#1500 |
36.0 |
24.0 |
10.5±1.0 |
6.0 |
#2000 |
33.0 |
21.0 |
8.5±0.7 |
4.7 |
#2500 |
30.0 |
18.0 |
7.0±0.7 |
3.6 |
#3000 |
28.0 |
16.0 |
5.7±0.7 |
2.8 |
TABLE 4
Grit #240-#8000 Grit size distribution (Electric Resistance method) | ||||
Grit number |
ds0 value max., micron |
ds3 value max., micron |
ds50 value, micron |
ds94 value min., micron |
#240 |
127.0 |
103.0 |
57.0±3.0 |
40.0 |
#280 |
112.0 |
87.0 |
48.0±3.0 |
33.0 |
#320 |
98.0 |
74.0 |
40.0±2.5 |
27.0 |
#360 |
86.0 |
66.0 |
35.0±2.0 |
23.0 |
#400 |
75.0 |
58.0 |
30.0±2.0 |
20.0 |
#500 |
63.0 |
50.0 |
25.0±2.0 |
16.0 |
#600 |
53.0 |
43.0 |
20.0±1.5 |
13.0 |
#700 |
45.0 |
37.0 |
17.0±1.3 |
11.0 |
#800 |
38.0 |
31.0 |
14.0±1.0 |
9.0 |
#1000 |
32.0 |
27.0 |
11.5±1.0 |
7.0 |
#1200 |
27.0 |
23.0 |
9.5±0.8 |
5.5 |
#1500 |
23.0 |
20.0 |
8.0±0.6 |
4.5 |
#2000 |
19.0 |
17.0 |
6.7±0.6 |
4.0 |
#2500 |
16.0 |
14.0 |
5.5±0.5 |
3.0 |
#3000 |
13.0 |
11.0 |
4.0±0.5 |
2.0 |
#4000 |
11.0 |
8.0 |
3.0±0.4 |
1.3 |
#6000 |
8.0 |
5.0 |
2.0±0.4 |
0.8 |
#8000 |
6.0 |
3.5 |
1.2±0.3 |
0.6(75% location) |
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