Calcium siliocn is an ideal compound deoxidizer and desulfurizer.Silicon alloy not only has strong deoxidizing capacity, deoxidizing products are easy to float and discharge, but also can improve the properties of steel, improve its plasticity, impact toughness and fluidity.At present, silicon and calcium alloy can replace aluminum for final deoxidation.Used in high quality steel.
Chemical Composition:
Grade
|
Chemical Composition (%)
|
Ca
|
Si
|
C
|
Al
|
P
|
S
|
Fe
|
≥
|
≥
|
≤
|
|
Ca30Si60
|
30
|
60
|
1.0
|
2.4
|
0.04
|
0.04
|
Balance
|
Ca30Si55
|
30
|
55-60
|
1.0
|
2.4
|
0.04
|
0.04
|
Balance
|
Ca30Si50
|
30
|
50-55
|
1.0
|
2.4
|
0.04
|
0.04
|
Balance
|
Ca28Si55
|
28
|
55-60
|
1.0
|
2.4
|
0.04
|
0.04
|
Balance
|
Ca28Si50
|
28
|
50-55
|
1.0
|
2.4
|
0.04
|
0.04
|
Balance
|
Ca20Si50
|
20
|
50-55
|
1.0
|
2.4
|
0.04
|
0.04
|
Balance
|
Ca10Si40
|
10-15
|
40-45
|
0.5
|
2.0
|
0.05
|
0.05
|
40-45
|
Size: 0-3mm,3-10mm,10-100mm or as per customer’s requirement
Packing: 1mt/big bag or as per customer’s requirement
Remark: Specification and size can be optimized by per customer' requirement.
USES of calcium silicon :
Since calcium silicon has a strong affinity with oxygen, sulfur, hydrogen, nitrogen and carbon in steel fluid, silicon calcium alloy is mainly used for deoxidization, degassing and fixation of sulfur in steel fluid.In the outside refining technology of steel, the content of oxygen and sulfur in steel is reduced to very low by desulphurization and desulphurization with silicon-calcium powder or core wire.It can also control the sulfide form in steel and improve the utilization rate of calcium.In the production of cast iron, silicon calcium alloy not only deoxidizes and purifies, but also plays an inoculating role, which is helpful to form fine or globular graphite.The graphite distribution in gray cast iron is uniform and the white tendency is reduced.And can increase silicon, desulfurization, improve the quality of cast iron.
Pupan now has more than 10 production lines of various silicon and calcium covered core wire, among which 3,000 square meters of new seamless calcium wire workshop and four production lines are added, with an annual capacity of 20,000 tons.Other core wire with annual capacity of 30,000 tons;Two large calcium silk extruder, with an annual capacity of 15,000 tons.In 2012, I obtained the export license qualification of ferroalloy B from ministry of commerce, and passed iso9001-2008 quality management system certification every year.