Recal | Strojní obrábění a metalurgie

_{1. Trade name:}	_RECAL
_{2. Producer:}	_{KVS EKODIVIZE a.s. Leskovská 566, 793 12 Horní Benešov Tel. 554 748 050, 554 748 051 Fax. 554 748 052}
_{3. Company standart:}	_{RST - 02 - 10 / A}
_{4. Classification per SKP:}	_27.42.12

hut_recal_siroky

5. Possibilities of application:

It is possible to apply RECAL to deactivate a furnace, or for refining slag during the production of steel, or more precisely during its extra-furnace processing.

It serves for decreasing the oxidizing potential of steel slag, or a steel bath.
Recommended dosing depends on the FeO content in slag, or as the case may be on content of active oxygen in steel.
Metal aluminium efficiency in RECAL is fully comparable with commonly used aluminium for deoxidation.
Co-attendant Al2O3 has a positive influence on treatment and composition of, in particular, calcium-aluminium refining slag.
Thereby conditions for flowability of refining slag and conditions for desulphurisation are improved.

6. Chemical composition:

Component	PN: RST-02-10/A	Current content	Form
Moisture at 140 °C	< 3%	1.5%	free H2O
Al metal.	> 50%	55%	particle 0.1 - 5 mm
Al2O3	> 25%	>25%	Al(OH)3, Al2O3 AlO(OH)
MgO	< 3%	1 - 3%	MgO, Mg(OH)2,
bonding agent	< 4-6%	4%
SiO2	< 8%	4-7%	SiO2
Fe2O3	< 3%	< 1%	Fe2O3
Other (Ti, Mn, Co, Zn, Cu)	< 2%	< 1%

Notice: Gas elements N, Cl, F are fixed to thermally fixed compounds

7. Physical properties:

RECAL is produced in the form of cylindrical and oval shaped briquettes and tablets in order to minimize dust nuisance during its application and also easy manipulation during the dosing.

Quantity	PN: RST-02-10/A	Current value	Notice
Colour	grey	grey
Specific weight	1800 Kg/m³	1800 - 2100 Kg/m³
Powder density	900 - 1000 Kg/m³	900 - 1100 Kg/m³
Grading:			briquettes, tablets
0 - 15 mm	< 5%	1 - 3%
15 - 40 mm	> 95%	97 - 99%
Stalling height	2 m	2 m	Fall on steel plate

8. Packing and transport:

a. trucks in returnable packs, type BIG BAG at ca. 1 ton
b. by railway in returnable packs, type BIG BAG, or in bulk