Silica Sand

Raw sand is passed by washing, classilying, scrubbing. …etc. After many repeated process and according to
CNS to sieve & classify, the final product is called as refined foundry sand, which is suitable for high-class foundry use,this kind of sand has following advantages:

1. The content of SiO2 and refractory are very high.
2. Clay contents 0.5% max. so can save cost.
3. Sub angular to round grain shape ensure great permeability.
4. The quality and pureness are even, water content under 0.1%
5. Long durability,good return and saving cost.
6. PH value is stable and fixed to neutral, and quality control is strict.
7. According to CNS specification. To classify, so it is very convenient to use.

詳細介紹


精 選 鑄 砂 粒 度 分 佈 及 化 學 成 份 一 覽 表
         THE GRAIN DISTRIBUTION AND CHEMICAL ANALYSIS OF REFINDED SAND
 
編號
 A.S.T.M SIEVE
NO.(m.m)
AFS Grain Finenenss
Number
10
2.000
20
0.841
30
0.595
40
0.420
50
0.297
70
0.210
100
0.149
140
0.105
200
0.074
270
0.053
PAN
化學成份
用 途 PURPOSE
SiO2
Al2O3
Fe2O3
噴砂
17~23
0.1
29.2
62.8
7.8
0.1
 
 
 
 
 
 
97.80
2.01
0.07
濾水砂,噴砂,建材
2#
27~30
 
2.2
29.3
55.6
12.3
0.5
0.1
 
 
 
 
97.50
2.06
0.07
口夫喃自硬性
CO2模大型鑄件用
3#
36~42
 
 
4.8
36.5
44.9
10.7
2.9
0.2
 
 
 
96.58
2.69
0.09
油砂心, CO2模用
4#
 47~53
 
 
0.2
4.1
40.2
37.4
14.9
2.6
0.5
0.1
 
96.04
2.97
0.10
一般造模,
及殼模外模用
5#
60~70
 
 
 
2.0
21.4
30.8
26.4
14.6
3.4
1.2
0.2
95.01
3.11
0.10
殼模及砂心用,
自動高壓造模用
6#
70~85
 
 
 
 
5.7
30.6
32.6
20.4
7.4
2.6
0.7
94.90
3.20
0.13
殼模及砂心用
面紗,鑄銅用
9#
100~120
 
 
 
 
0.1
2.4
35.4
39.7
14.6
6.4
1.4
92.35
5.68
0.15
不鏽鋼,鑄銅,
鑄鋁及建材用
10#
150~180
 
 
 
 
 
 
0.3
20.9
37.6
28.6
12.6
92.1
5.7
0.16
不鏽鋼,鑄銅,
鑄鋁及建材用