METHOD OF MANUFACTURING SULFUR-CONTAINING JOINED ARTICLE

PROBLEM TO BE SOLVED: To provide a method of manufacturing a substantially integrated sulfur-containing joined article excellent in acid resistance and water barrier properties, capable of easily joining sulfur-containing segments to each other in a short time and enabling the recycling of an electric heating means at the time of joining. SOLUTION: The method of manufacturing the sulfur-containing joined article includes a process (A) for preparing a plurality of sulfur-containing segments having joining surfaces, a process (B-1) for closely bonding and fixing the joining surfaces of the segments or a process (B-2) for separating the joining surfaces of the segments to fix them, a process (C-1) for heating and melting the outer edge parts of the closely bonded joining surfaces, a process (C-2) for heating and melting the outer edge parts of the respective joining surfaces separated to be fixed, a process (C-3) for closely bonding the joining surfaces in a state that the outer edge parts of the joining surfaces are heated and melted, a process (D) for leveling the heated and melted outer edge parts and a process (E) for cooling and solidifying the heated and melted parts. The heating and melting in the process (C-1) or (C-2) is performed using the electric heating means separated from the outer edge parts to heat the outer edge parts. COPYRIGHT: (C)2006,JPO&NCIPI