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Choose top-grade Mg sand and top-grade composite Mg-C sand as main raw materials to control grain size under proper status with high bulk density, easy for sintering, resistant to corrosion and washing, used as ramming mass for furnace bottom, dry-method construction is able to be carried out, hence it is ideal materials for bottom of electric furnace.
Physical and Chemical Index
|
Item |Mark |
SN-DL80 |
SN-DL82 |
SN-DL83 |
SN-DL85 |
|
Chemical composition
（%）＞ |
MgO |
80 |
82 |
83 |
85 |
|
Fe2O3 |
4~5 |
5~6 |
6~7 |
3.5~4.5 |
|
SiO2＜ |
1 |
1.5 |
1.3 |
1.8 |
|
CaO |
13~16 |
9~12 |
8~10 |
6~8 |
|
Granularity (mm)（mm）＜ |
5 |
5 |
5 |
5 |
|
Compression strength（Mpa） |
1600℃
×3h |
35 |
30 |
35 |
35 | |
|
