Silicon Nitride Thermocouple Protection Tube/Sheath---Protect Temperature-measuring Components
Thermocouple protection sheaths are extensively for continuous temperature measurement in non-ferrous metals. In molten aluminium, silicon nitride is non-wetting, does not contaminate the melt, provides continuous, reliable temperatre measurement, and is resistant to degradation even in aggressive aluminium lithium alloys.
Applications:
Holding/melting furnace, Degassingboxes, Launder
Handling Precautions:
Avoid severe mechanical impact.
Avoid rapid cooling over a wide temperature range
Assemble and install only in moisture free conditions.
Preheating in the air prior to submersion in the molten metal by the temperature of 300 and 500 centi-degree for 1 hour.
Periodic Maintenance Remove slag deposits before solidification from stalk tube surface weekly.
Improper installation of seals may cause failure due to mechanical
stress.