Calcium silicon alloy is used as deoxidizer & desulfurizer in steel making, effectively avoid the problem of ladle nozzle nodules and blockage. As an inoculant for casting and an additive in the production of ductile iron.
Particle Size: 3-6mm, 5-15mm, 5-25mm, 5-35mm, 15-25mm, etc.
Package: 1Mton big bag.
In the production of cast iron, calcium silicon is more effective in improving the properties of cast iron than ferro silicon. Silicon-calcium alloy is not only an effective inoculant to promote the formation of spheroidal graphite, but also has the effects of deoxidation, desulfurization, denitrification and silicon increase.
The main components of silicon calcium alloy are silicon and calcium, and different amounts of impurities such as Fe, Al, C, S, P etc. Calcium has a strong affinity with oxygen, sulfur, hydrogen, nitrogen and carbon in molten steel. So, silicon calcium alloys are usually used as a deoxidizer and desulfurizer.
In addition, silicon calcium is added to molten steel to produce a strong exothermic effect, which is beneficial to maintain the temperature of molten steel. The calcium vapor produces a stirring effect on the molten steel, which is beneficial to the floating of non-metallic slag.
|
Type |
Content of Elements |
|||||
|
% Ca |
% Si |
% C |
% Al |
% P |
% S |
|
|
Ca31Si60 |
31 |
55-65 |
1.0 |
2.4 |
0.04 |
0.06 |
|
Ca28Si60 |
28 |
55-65 |
1.0 |
2.4 |
0.04 |
0.06 |
|
Ca24Si60 |
24 |
55-65 |
1.0 |
2.5 |
0.04 |
0.04 |
|
Ca20Si55 |
20 |
50-60 |
1.0 |
2.5 |
0.04 |
0.04 |
|
Ca16Si55 |
16 |
50-60 |
1.0 |
2.5 |
0.04 |
0.04 |
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Ferro silicon is widely used as deoxidizer and alloy additive in steel making, and also can be used as an inoculant and nodulizer for cast iron. Ferro silicon powder or atomized ferro silicon powder can be used as coating for welding rod production.
Ferro silicon barium is suitable for inoculation treatment of gray cast iron or ductile iron with strict requirements on air tightness or leakage. Ferro Silicon Barium is easier to dissolve and absorb than ordinary inoculants, and can reduce the gas content in molten iron.
Alloys cored wire is a special form deoxidizer for the steel making industry. It is a core wire made of various specific alloying element powders or grains, physically mixed in a certain proportion, and then tightly wrapped with a thin iron sheet.