Electrical resistance is a material property that impedes the flow of electric current, measured in ohms (Ω). It occurs as electrons collide with atoms within a resistive material, converting electrical energy into heat (Joule’s Law). This law is crucial for providing on-site heat treatment services to our trusted clients in the oil, gas, and energy sectors.

Application of Electrical Resistance in Industrial Heat Treatment
In industrial on-site heat treatment, electrical resistance is utilized to generate controlled, targeted heat for the thermal treatment of metal components. The process involves:

1. Electric Current Flow: A precisely controlled electric current is introduced into specialized resistance heating elements, known within the industry as Flexible Ceramic Pads (FCP) heating elements.
2. Heat Generation: As the current flows through the nickel/chrome within the FCP, the inherent resistance generates heat proportional to the current and the material’s resistivity.
3. Temperature Control: The heat produced is monitored using thermocouples placed on or near the metal component surface to determine the proper current to be introduced to the FCPs, thereby accurately controlling the heating or cooling of the component.
4. Thermal Processing: The heat produced is utilized for preheat and post weld heat treatment applications to achieve specific metallurgical properties in a localized area, such as stress relief, hardness enhancement, or material flexibility.

This technique provides exceptional accuracy and uniformity, ensuring your job is completed in a cost-conscious, timely, and safe manner.