Pressure sintered silicon nitride material thermocouple protection
tube for protection measure liquid aluminum, titanium liquid
temperature thermocouples used. Features: 1, without the occurrence
of erosion and molten aluminum, the surface is not bonded aluminum
liquid, more conducive to the improvement of the quality of
aluminum products; 2, strong antioxidant, 10 degrees Celsius below
the long-term use in the air, oxidation does not occur; 3 100%
dense, aluminum can not be immersed in liquid, reaction sintering
process to produce silicon nitride life is very short, there is a
lot of material pores, long aluminum liquid will penetrate; 4,
thermal shock resistance and strong; 5, aluminum in the life of at
least 6 months, the actual test more than one year.