What function does nichrome wire serve in the refractory?

Nichrome wire is primarily used as a heating element in various applications, particularly in refractory settings. This is due to its high resistance and ability to withstand extreme temperatures without degrading. When electric current passes through nichrome wire, it produces heat, which is essential for processes requiring intense, localized heating, such as in kilns, furnaces, and other high-temperature applications.

While it is true that nichrome may also have some secondary functions, such as providing structural support in certain circumstances, its primary role is as a heating element. Understanding the properties of nichrome, including its thermal and electrical resistance, is crucial for recognizing why it is ideal for generating heat in the refractory context.