Negotiable
The date of payment from buyers deliver within days
Shandong
Long-term effective
2022-07-28 10:30
110
Company Profile
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Contact：runjinnaihuo(Mr.)
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Area：Shandong
Address：Shandong
Website：http://www.runjinrefractories.com/ http://runjinnaihuo.weijia-group.com/
Electrofused calcium aluminate, also known as pre-melting refining slag or pre-melting aluminum calcium slag, has long been used in foreign countries, such as South Korea, Japan, Europe and the United States and other developed countries
The composition is uniform and the melting point is low, and the smelting time can be shortened; the slag viscosity and flow are suitable to promote the deoxidation and desulphurization of the slag and the molten steel; rapid desulfurization, the effect is stable at 60%, and the recovery of the phosphorus is effectively suppressed; the effective adsorption of inclusions is beneficial to the purification of the steel, the protection of the ladle lining and the prevention of the slag erosion; the composition is uniform and formed. The slag is fast, and the dust pollution can be reduced.
In addition, we can also organize mass production according to the chemical composition required by the user, and keep it confidential for the user.
When deoxidation is the main method, directly add the bottom of the ladle before tapping; the addition amount is determined by the carbon content of the molten steel at the end point, generally according to 4-6kg/1000kg steel; Ferrosilicon and aluminum; manganese and ferrosilicon are conventionally added to carbon structural steel after tapping, without adding other alloys or aluminum to feed the wire, and the molten steel in the ladle only needs to be refined by blowing argon; using this product for deoxidation, the amount of carburizer (silicon carbide) Can be reduced by 30-50%
When desulfurization is the main method, 1/3 of the amount used in advance at the bottom of the bag is indeed good, but it must be added at the impact position of the steel flow at the bottom of the bag; 2/3 of the amount is added while the molten steel flows out; the amount of steel used is 6-8kg/1000kg, depending on The original sulfur content of molten steel and the effect of use are determined.
Chemical and physical of properties
Item |
SiO2 % |
Al2O3 % |
Fe2O3 % |
TiO2 % |
CaO % |
MgO % |
DFS-1-A |
3 |
45-50 |
1 |
1 |
45-50 |
2 |
DSF-1-B |
3 |
35-40 |
1 |
0.1 |
45-50 |
10 |
DFS-2 |
4 |
30-45 |
2 |
2.5 |
45-55 |
4 |
DFS-3 |
5 |
30-45 |
2 |
2 |
45-60 |
5 |
DFS-4 |
6 |
25-45 |
45-60 |
5 |
||
DFS-5 |
7 |
30-45 |
40-60 |
4 |
||
DFS-6 |
5-15 |
35-40 |
40-50 |
3 |
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