| 摘要 |
<p>Mineral insulated metal sheath thermocouples (4.2) suitable for use at high temperatures in a hostile environment such as molten glass characterised in that the sheath (4.3) is composed of the known alloy NICROBELL or an alloy consisting of 10 to 35 % Cr, 0.05 to 15 % Al, 0.05 to 2 % Ti, 0.05 to 2 % Y2O5, with the balance being either Fe, Ni or Co, or an alloy consisting of 20 ± 1.0 % Cr, 4.5 ± 0.5 % Al, 0.5 ± 0.1 % Y2O5 or Tho2, with the balance being Fe.</p> |
