Abstract: A flow resistor includes a housing, a pipe, and an adjuster. The housing includes a through hole including a first hole portion and a second hole portion. The pipe includes a first extending portion and a second extending portion that extends in a direction different from an extending direction of the first extending portion. The adjuster includes a through hole. The pipe is inserted into the through hole of the housing, the first extending portion is positioned in the first hole portion, and the second extending portion is positioned in the second hole portion. The adjuster is positioned in the second hole portion and is a member movable toward the second extending portion. The through hole of the adjuster couples a space between the adjuster and the pipe with an outside of the flow resistor, in the second hole portion.

Abstract: A flow resistor includes a housing, a pipe, and an adjuster. The housing includes a through hole including a first hole portion and a second hole portion. The pipe includes a first extending portion and a second extending portion that extends in a direction different from an extending direction of the first extending portion. The adjuster includes a through hole. The pipe is inserted into the through hole of the housing, the first extending portion is positioned in the first hole portion, and the second extending portion is positioned in the second hole portion. The adjuster is positioned in the second hole portion and is a member movable toward the second extending portion. The through hole of the adjuster couples a space between the adjuster and the pipe with an outside of the flow resistor, in the second hole portion.

Abstract: The present invention addresses the issue of providing a heat treatment system and a heat treatment method whereby the inner circumference of a cylindrical workpiece can be reliably cooled regardless of the dimensions or shape of the workpiece and productivity can be improved, during quenching of the inner circumference of the cylindrical workpiece. The present invention has: rotating devices 18, 19 that rotate the cylindrical workpiece 11: holding members 181, 191 that hold the cylindrical workpiece 11 at a prescribed position; a heating member 16 that heats the cylindrical workpiece 11 from the inner circumferential surface side; a cooling device 17 that injects cooling fluid and cools the cylindrical workpiece 11 from the outer circumferential surface side; and a injecting device 34 provided at a position separated from the cooling device 17 and which inject the cooling fluid.

Abstract: The present invention addresses the issue of providing a heat treatment system and a heat treatment method whereby the inner circumference of a cylindrical workpiece can be reliably cooled regardless of the dimensions or shape of the workpiece and productivity can be improved, during quenching of the inner circumference of the cylindrical workpiece. The present invention has: rotating devices 18, 19 that rotate the cylindrical workpiece 11: holding members 181, 191 that hold the cylindrical workpiece 11 at a prescribed position; a heating member 16 that heats the cylindrical workpiece 11 from the inner circumferential surface side; a cooling device 17 that injects cooling fluid and cools the cylindrical workpiece 11 from the outer circumferential surface side; and a injecting device 34 provided at a position separated from the cooling device 17 and which inject the cooling fluid.