Abstract: A brazing system for brazing component members of a workpiece has a brazing chamber an inside of which is made a heating space of a volume corresponding to the workpiece, a radiant heating means provided with a plurality of heating sources which are positioned so as to correspond to a plurality of regions into which two facing surfaces of the workpiece are respectively divided, a convection heating means for circulating a heated inert gas to the heating space so as to heat the workpiece, and a control means for controlling the operation of the heating sources and the circulation of the inert gas. Each heating source is independently controlled by the control means, and the convection heating means circulates the inert gas so as to reduce a temperature difference of the workpiece caused by the heating sources.

Abstract: A brazing system for brazing component members of a workpiece has a brazing chamber an inside of which is made a heating space of a volume corresponding to the workpiece, a radiant heating means provided with a plurality of heating sources which are positioned so as to correspond to a plurality of regions into which two facing surfaces of the workpiece are respectively divided, a convection heating means for circulating a heated inert gas to the heating space so as to heat the workpiece, and a control means for controlling the operation of the heating sources and the circulation of the inert gas. Each heating source is independently controlled by the control means, and the convection heating means circulates the inert gas so as to reduce a temperature difference of the workpiece caused by the heating sources.

Abstract: A programmable logic controller having a data holding unit for storing operation data for instructing operations and condition data for the operations in accordance with a predetermined sequence, having a variable control unit for generating operation instruction signals from the operation data in accordance with a predetermined sequence, and controlling a system for successive operation when conditions defined by the condition data and conditions input from sensors of the control system match.