Systems and methods for producing hot induction pipe bends with homogeneous metallurgical and mechanical properties

A method for manufacturing a pipe bend, comprising:

• heating, with an induction coil, a first annular band of a wall of a first end portion of a pipe while moving the pipe in a first direction at a first speed to establish a relative speed between the pipe and the induction coil;
• directing quenching fluid toward an outer surface and an inner surface of the first annular band of the wall while moving the pipe in the first direction, wherein a first quenching fluid and a second quenching fluid are released such that the first quenching fluid contacts the outer surface while the second quenching fluid contacts the inner surface;
• securing a first end of the pipe in a securement device coupled to a pivot arm;
• heating a second annular band of a wall of a bend portion of the pipe while moving the pipe in the first direction;
• directing the quenching fluids toward an outer surface and an inner surface of the second annular band of the wall while moving the pipe in the first direction;
• decreasing the first speed of the pipe to stationary while moving the induction coil from stationary to a second speed in a second direction opposite the first direction, wherein a rate of decrease of the first speed and a rate of increase of the second speed are controlled to maintain a relative speed between the pipe and the induction coil substantially constant;
• heating a third annular band of a wall of a second end portion of the pipe while moving the induction coil in the second direction;
• and
• directing the quenching fluids toward an outer surface and an inner surface of the third annular band of the wall while moving the induction coil in the second direction;
• and
• controlling a temperature sensor configured to measure a temperature of at least one of the heated annular bands;
• wherein the temperature sensor and at least one quenching ring form a temperature regulation assembly, and wherein the temperature regulation assembly is coupled to a boom configured to house one or more conduits for providing power, or the quenching fluid, or both to the temperature regulation assembly.

A method for manufacturing a pipe bend, comprising:

• heating, with an induction coil, a first annular band of a wall of a first end portion of a pipe while moving the pipe in a first direction at a first speed to establish a relative speed between the pipe and the induction coil;
• directing quenching fluid toward an outer surface and an inner surface of the first annular band of the wall while moving the pipe in the first direction;
• securing a first end of the pipe in a securement device coupled to a pivot arm;
• heating a second annular band of a wall of a bend portion of the pipe while moving the pipe in the first direction;
• directing the quenching fluid toward an outer surface and an inner surface of the second annular band of the wall while moving the pipe in the first direction;
• decreasing the first speed of the pipe to stationary while moving the induction coil from stationary to a second speed in a second direction opposite the first direction;
• heating a third annular band of a wall of a second end portion of the pipe while moving the induction coil in the second direction;
• and
• directing the quenching fluid toward an outer surface and an inner surface of the third annular band of the wall while moving the induction coil in the second direction;
• and
• controlling at least one temperature sensor configured to measure a temperature of one of the heated annular bands;
• wherein the temperature sensor and at least one quenching ring form a temperature regulation assembly, and wherein the temperature regulation assembly is coupled to a boom configured to house one or more conduits for providing power, or the quenching fluid, or both to the temperature regulation assembly.