G R A N E X
Exotermic Cover Fillings for fluid Metal Sufrace Tratment
in Steel - works and Foundries
Properties:
The high heat efficiency and sensitivity is enhanced by the expansion of the filling,
which, in the course of exotermic reaction, increases its volume by at least 100
percent, thus, after burn-out, forming a loose layer of ashes with exceptionally good
insulation properities.
Use:
For all types of Fe-alloys and steel ingots and cassting. The individual Granex types
differ in their heat intensity and sensitivity of exotermic reaction.. These properities
can be altered in co-oparation with the client in compliance with the requirements
of the individual foundry technological procedures.
GRANEX 1:
Appropriate for all types of steel ingots weighing over 1 ton. For foundry casting
made of steel or nodular cast iron, for risers with diameters over 200 mm.
GRANEX 3: Appropriate for all types of steel ingots weighing over 1 ton. For foundry casting
made of steel or nodular or grey cast iron non-ferrous metals
Recommended dosing:
1) steel ingots 1,2 - 1,5 KG per 1 ton steel
2) foundry risers
Riser diameter in mm | Dose kg | Layer Height in mm |
beginning | end |
100 | 0,20 | 25 | 50 |
150 | 0,45 | 25 | 50 |
200 | 0,80 | 25 | 50 |
300 | 1,80 | 25 | 50 |
400 | 3,50 | 27 | 54 |
over 400 mm in accordance with formula: M = 0,785 x d (M = Dose in KG, d = riser diaameter in dm)
The individual dose has to be specified in compliance with the given část assortment, the quality
of insulated side walls of the riser and further specific data relating to the given foundry
technoligical procedure.
By all means, in comparison with classical exo-filling (non-expanding filling)
a decreasa in dosing by at least 20 to 50 percent showing at least idential results, without the
need to apply supplementary insulation of the burnt-up exo-filling, can be quaranteed.
Technical parameters:
GRANEX 1 Al metal at least 17 percent
GRANEX 3 Al metal at least 20 percent
Loose weight approx. 1,1 g/cm3, grain size 0 to 3 mm.
Package:
Standard: á 5 Kg Sacks
Substandard: client options
Storage:
dry, well aired warenhouse, protection from moistening during transportation and storage,
storage period max. 6 months.
Labor security:
Exo-mixture class II, ignition temperature over 600 grade
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