Thermocouples for hot metals

[navnav2006]

Hi

Does anyone know what kind of thermocouples can measure temperature of molten metal particularly Aluminium.

Someone suggested me about K-type thermocouples. Do i need to make a refractory coating around.

Is it capable of measuring the temperature at the metal mold interface??
and does it actually need to penetrate the molten metal.

Please Advice......

[cam1]

Hi:
Omega Engineering has Ceramic TC shields for that application.If you cannot find it there, you won't find it anywhere....

http://www.omega.com/products.html

regards

[navnav2006]

Thanks for the link Cam1 It is really helpful.

[jgro]

I use K type thermocouples. I stick it right into the molten metal to take a reading. Mine have lasted quite a few melts already without going bad.

jgro