Custom Abrasion Resistance Meets the Needs of Aluminum Manufacturer


A manufacturer of aluminum products performs heat treating in a gas fired, high velocity air circulation furnace at temperatures of 900 to 1000°F (480 to 540°C). The high-velocity air circulation was causing the thermocouple to rub against furnace components resulting in insulation failure.


To solve this abrasion problem, Watlow developed a special wire construction featuring a tighter, higher pick count weave.

Additionally, an improved impregnation was developed to withstand the high temperatures. The new impregnation doesn't become stiff and brittle, preventing the insulation's glass fibers from fracturing in the high velocity air.