Category Archives: Faq
FAQ (frequently asked questions) related to industrial heat, foundry, aluminium and refractory products.
Why does corundum appear?
Corundum formation and its subsequent destruction of the furnace lining can be a constant worry [...]
Oct
WHAT IS PLASMA?
Without going any further, the Sun is, in itself, a gigantic plasma, full of atoms [...]
Apr
What is the natural mechanism of wear away of silicon lining?
The carbon reduction of the silica is a natural reaction accentuated with temperature. SiO2 lining [...]
Jan
Why do vertical cracks appear in the cooling?
The formation of cracks is inherent in the nature of the raw material quartzite when [...]
Jan
Does the induction influence the wear of the lining?
Yes. The electromagnetic agitation provokes the movement of the metal inside the crucible. The speed [...]
Jan
Why slag may appear adhered to the lining?
The slag adhered to the silicon lining carries an inefficient running of the furnace. It [...]
Jan
Why do horizontal cracks appear in the lining?
There is no single answer. There are several possible reasons that we can number as [...]
Jan
Why does Zn appear against the mica during the demolition of the lining?
The presence of Zn in the demolition is associated with its presence in the used [...]
Jan
What is the difference between acid and boric oxide?
Boric acid is the hydrated form (it contains water) of boric oxide (anhydrous form or [...]
Jan
At what temperature should I sinter a silicon lining?
It is recommended to sinter the lining 50ºC above the working temperature. Keep this temperature [...]
Jan
Why does the lining appear pale pink or reddish colour?
Normally it is associated with traces of elements accompanying quartzite. What can happen? Nothing. What [...]
Jan
Why do small black balls appear in the lining when it is demolished?
Carbon monoxide produced of the oxidation of the carbon of the metal spreads across the [...]
Jan