HEATING METHOD, HEATING DEVICE, AND METHOD FOR MANUFACTURING PRESS-MOLDED ARTICLE

• Main Authors: IKUTA FUMIAKI, OOYAMA HIRONORI
• Format: Patent
• Language: Chinese; English
• Published: 25.03.2022
• Subjects: CHEMISTRY; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

Provided are a heating method, a heating device, and a method for manufacturing a press-molded article using the heating method. A pair of electrodes is arranged on a workpiece along a first direction. Each electrode has a length extending across a first heating region of the workpiece in a first direction. At least one electrode among the pair of electrodes moves in a second direction crossing the first direction in the first heating region at a constant speed while applying a current between the pair of electrodes to heat the first heating region by direct resistance heating. The current applied between the pair of electrodes is adjusted such that the heating temperature is adjusted for each section into which the first heating region is divided so that the sections are aligned in the second direction. 提供了加热方法、加热装置和使用该加热方法的压制成型品的制造方法。一对电极沿着第一方向而被布置在工件上。各个电极具有在第一方向上横跨工件的第一加热区域而延伸的长度。在将电流施加于一对电极之间的同时，一对电极之中的至少一个电极以恒定速度在第一加热区域中沿着与第一方向交叉的第二方向移动，以通过直接电阻加热来加热第一加热区域。调整在一对电极之间施加的电流，使得对于各个区段调整加热温度，第一加热区域被划分为该各个区段，从而