|
 
|
Measures
Oxygen in steels &
Coppers
Silicon in steels
Aluminium in Steels
Carbon in Steels |
|
|
Any / all of these in a
few seconds |
|
Description :
THERMOXYTIP contains a well-established solid electrolyte and a
solid-state reference material encapsulated in a quartz tube to form the
Oxygen sensor in a modular form. This sensor together with the Oxygen
activity in the steels form a millivolt cell and generates an e.m.f.
Proportional to the amount of dissolved Oxygen in the molten steel bath.
A high melting point virgin metal rod forms the bath electrode making
contact with the molten metal thus completing the electric circuit. The
well-known THERMOTIP brand Disposable Thermocouple forms the
companion bath temperature sensor.
Multivarious uses of THERMOXYTIP :
The carbon content in steel can be estimated under certain circumstances. When the Carbon and the Oxygen reaction has reached an equilibrium this may be expressed by the relation:
M=(% C) (%O) = 0.0022
Thus with an indicated oxygen content of say 300 ppm, the carbon content can be estimated to be 0.073 %.
Since Silicon and Oxygen diffuse very rapidly at liquid steel temperature, the equilibrium of the reaction Si + 2 O = SiO2 is achieved very quickly and % Si can be estimated by the equation.
Log % Si = 20, 166 E/T - 12530/T + 2.78
Where E = Oxy probe output volts
T = Temperature in Degrees Kelvin
In case of low carbon Aluminum killed argon stirred steels (LCAK), the residual aluminum can be determined.
|
