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精密切割机系列
PCB/PCBA金相切片取样机
热镶嵌机/镶样机
抽真空压力锅/冷镶嵌机
手动研磨抛光机
全自动研磨抛光机
金相实验室辅助仪器
GC 碳化硅微粉


GC 系列是绿色碳化硅磨粉,是硬度仅次于金钢石的超硬度研磨粉。中心粒度最细仅 0.25 微米,故用途十分广泛,多用于晶体及各类硬金属的切割、精磨及抛光。
Quality Standards
Type
Particle size
Specific
gravity
Chemical composition(%)
SiC
C.F
Fe.S

GC

# 240 ~ # 3000
3.16 or more
96.0 or more
0.5 or less
0.3 or less
#4000 ~ #30000
3.10 or more
92.0 or more
2.0 or less
0.3 or less
Standard Specification for Particle Size

Particle
size
Particle distribution (μm)
Packaging
Maximum particle size in(μm)
Particle size at 3% point
Particle size at 50% point
Particle size at 94% point
Stand pack
Net weight(kg)
Vinyl lined Net weight (kg)
GC
# 240
127 or less
103 or less
57.0 ± 3.0
40 or more
5
20
# 280
112
87
48.0 ± 3.0
33
5
20
# 320
98
74
40.0 ± 2.5
27
5
20
# 360
86
66
35.0 ± 2.0
23
5
20
# 400
75
58
30.0 ± 2.0
20
5
20
# 500
63
50
25.0 ± 2.0
16
5
20
#600
53
43
20.0 ± 1.5
13
5
20
#700
45
37
17.0 ± 1.3
11
5
20
# 800
38
31
14.0 ± 1.0
9.0
5
20
# 1000
32
27
11.5 ± 1.0
7.0
5
20
# 1200
27
23
9.5 ± 0.8
5.5
5
20
# 1500
23
20
8.0 ± 0.6
4.5
5
20
#2000
19
17
6.7 ± 0.6
4.0
4
20
# 2500
16
14
5.5 ± 0.5
3.0
4
20
# 3000
13
11
4.0 ± 0.5
2.0
4
20
# 4000
11
8.0
3.0 ± 0.4
1.3
4
20
# 6000
8.0
5.0
2.0 ± 0.4
0.8
3
15
# 8000
6.0
3.5
1.2 ± 0.3
0.6(1)
3
10
# 9000
0.7
3
10
#10000
0.6
3
#20000
0.45
2
#30000
0.3
2
(Note1) :Particle size at 75% point(dv-75 value)
 
     

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