Emisshield ST-1 was coated on the interior of a heat treatment furnace lined with ceramic fibre modules to study the specific benefits provided by the coating. The operating temperature of the furnace was 1350°F/ 732°C.
Two identical heat treating furnaces were used to temper 1200 lb loads. Of these, one was coated with Emisshield ST-1 on the interior while the other furnace was not coated. Temperature readings were noted at periodic intervals in both the furnaces and tabulated.
||Temperature in the furnace coated with Emisshield ST-1
||Temperature in the uncoated furnace
As can be seen from the table, the furnace coated with Emisshield ST-1attained the operating temperature one hour earlier than the uncoated furnace. It was also observed that the Emisshield coated furnace cooled faster than the other, reaching 600°F/316°C in just 13 minutes compared to 20 minutes taken by the uncoated furnace.
The measurements clearly indicate that applying Emisshield ST-1 can help in reducing the time taken by heat treating furnaces to reach the operating temperature by more than 30%, thus enhancing their efficiency.
This information has been sourced, reviewed and adapted from materials provided by ANH Refractories Europe.
For more information on this source please visit ANH Refractories Europe.