Silicon Nitride Thermocouple Protection Tube (Sheaths)
International manufacture a range of silicon nitride advanced
ceramic thermocouple protection sheaths for use in the aluminium and
molten metal handling industries. They are an advanced ceramic tube
offering outnding performance for temperature control in aluminium
foundries and smelters and are extremely cost effective compared to
competitive materials, such as cast iron,
silicon carbide and alumina. are alloys of silicon nitride and
possess a unique combination of physical properties, such as high strength,
toughness, excellent thermal shock resince and resince to corrosion,
which make it the nd out material in this application.
protection tubes are world renowned for their outnding performance
in contact with nonferrous molten metals, particularly aluminium and
its alloys and zinc. They allow connt temperature monitoring of the
melt resulting in improved quality of the finished casting.
In addition to its excellent physical properties, is also non-wetting to most nonferrous alloys, making it resint to
build up of dross and is therefore very low maintenance. For high temperature applications above 1200C, is the preferred choice.
Again offering outnding physical properties,
can be used be at temperatures up to 1400°C.
Si3N4 thermocouple sheaths are available in a range of ndard sizes,
as shown in the table below.
These are usually available ex-stock. Tubes outside these ndard sizes are also available but with
a longer lead time. Please contact us with your enquiry.
standard Sizes—Thermocouple Protection Tube or Sheaths
OD/mm ID/mm Maximum Length/mm
28 16 2000
22 12 2000
16 9 2000
12.5 6.5 1150
9 4 600
For more information on nonferrous molten metal handling applications
of silicon nitride and sialon fine ceramics please free contact with us