Green Silicon Carbide
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product name:

Green Silicon Carbide

88

description:

Green Silicon Carbide is green colour ,suibable for processiong hard alloy ,metallic and non-metallic materials with hard and brittle feature such as cooper ,brass, aluminum, magnesium, jewel, optical glass, ceramics, etc. Super powder of it is also a kind of ceramics material.Our silicon carbide abrasive grains are manufactured according to :
(1)    FEPA – specifications for bonded F8-F2000
(2)    FEPA—specifications for coated P 12-P2500
(3) JIS abrasive grain size :# 8--# 8000

           Chemical composition                       (GB/T2480-1996)


 Grit

SiC

F.C.

Fe2O3

F20~F90

? 99.50

<0.20

? 0.20

F100~F150

? 98.50

<0.25

? 0.50

F180~F220

? 97.50

<0.25

? 0.70

F230~F400

? 97.00

<0.30

? 0.70

F500~F800

? 95.50

<0.40

? 0.70

F1000~F1200

? 94.00

<0.50

? 0.70

P12~P90

? 99.00

<0.20

? 0.20

P100~P150

? 98.50

<0.25

? 0.50

P180~P220

? 97.50

<0.25

? 0.70

P240~P1000

? 97.00

<0.30

? 0.70

P1200~P2500

? 95.50

<0.40

? 0.70

Note:Special requirments on chemical compositions can be satisfied through discussion .

27

25

 

 

24

24

 

 

23

21

?

?

19

18

Stainless Balls

Copper Balls

16

11

Carbon Steel Balls

Ceramic Balls

?

Grade of Tolerance and Technical Parameters:

Grade

Variation of ball diameter

Deviation of ball shape

Coarseness of ball surface

 
Variation of ball diameter

Fundamental tolerance of diameter

Vdws

?Sph

Ra

Vdwl

Tdn

?

um

10

0.25

0.25

0.025

0.5

*

16

0.4

0.4

0.032

0.8

*

20

0.5

0.5

0.05

1

*

28

0.7

0.7

0.05

1.5

*

40

1.0

1.0

0.08

2

*

60

1.5

1.5

0.10

3

*

100

2.5

2.5

0.125

5

±12.5

200

5

5

0.2

10

±25

500

13

13

*

25

±50

1000

25

25

*

50

±125

?

? Technical Parameters of Vibration:

Precision Grade
Vibration Classification
Ball Diameter

G20

G16

G10G5G3

?

?

?

Z1

Z2

Z3

>

=

 
Average Value

 
Single Value

Average Value

Single Value

Average Value

Single Value

4.5

6.5

39.5

41.5

37.5

39.5

35.5

37.5

6.5

7.5

40

42

38

40

36

38

7.5

10

40.5

42.5

38.5

40.5

36.5

38.5

10

11

42

44

40.5

42.5

36.5

40.5

11

12

42.5

44.5

41

43

39

41

121

13

43

45

41.5

43.5

39.5

41.5

13

14

43.5

45.5

42

44

40

42

14

15

44

46

42.5

44.5

40.5

42.5

15

16

44.5

46.5

43.5

44.5

40.5

42.5

16

17

45

47

43

45

41

43

17

17.5

45.5

47.5

43

45

41

43

?

? Case Depth of Carbon Steel Ball:

Nominal Size

Minimum Hardened Layer

?

<

?

?

0.3

1.5

0.1

15

2.0

0.4

2.0

3.0

0.5

3.0

4.5

0.6

4.5

5.5

0.8

5.5

6.5

0.9

6.5

9.5

1.1

9.5

11.0

1.4

11.0

12.5

1.7

12.5

14.0

1.8

14.0

19.0

1.9

19.0

38.0

2.0

?

? Vibration, Normal Specified Value, Single Specified Value of Diameter of Batch Balls:

Grade

Vibration of Diameter of Batch Balls

Spacing Interval of Specified Value

Normal Specified Value

Spacing Interval of Single Specified Value

Single Specified Value

?

?

?

?

?

10

0.5

1

-9,…-1,0,+1,…+9

0.2

-0.4,-0.2,0,+0.2,+0.4

16

0.8

2

-10,…-2,0,+2,…,+10

0.4

-0.8,-0.4,0,+0.4,+0.8

20

1

2

-10,…,-2,0,+2,…,+10

0.4

-0.8,-0.4,0,+0.4,+0.8

28

1.4

2

-12,…-2,0,+2,…,+12

0.4

-0.8,-0.4,0,+0.4,+0.8

40

2

4

-16,…-4,0,+4,…,+16

0.8

-1.6,-0.8,0,+0.8,+1.6

60

3

5

-20,…,-5,0,+5,…,+20

1

-2,-1,0,+1,+2

 
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