Method for manufacturing cylindrical member for exhaust gas treatment device, and coating film forming device

• Main Authors: KATO KODAI, NISHIO AKIFUMI, FUJIMURA RYO
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NOZZLES; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; STEAM ENGINES; TRANSPORTING; WEAPONS

The invention provides a cylindrical member having an insulating layer with excellent quality. A method for manufacturing a cylindrical member for an exhaust gas treatment device, the cylindrical member having a metallic cylindrical main body and an insulating layer including glass provided on at least the inner peripheral surface of the cylindrical main body, the method for manufacturing a cylindrical member for an exhaust gas treatment device comprises: a step for forming a coating film by spraying a coating liquid for forming an insulating layer onto the inner peripheral surface of the cylindrical body in a mist form; and a step for obtaining the insulating layer by firing the coating film, in which the mist spray is performed while the cylindrical body is rotated about the longitudinal direction of the cylindrical body as a rotational axis. 本发明提供具有品质优异的绝缘层的筒状部件。一种废气处理装置用筒状部件的制造方法，该废气处理装置用筒状部件具有金属制的筒状主体、以及在所述筒状主体的至少内周面设置的包含玻璃的绝缘层，所述废气处理装置用筒状部件的制造方法包括：向所述筒状主体的内周面进行绝缘层形成用涂敷液的雾状喷射而形成涂膜的工序；以及对所述涂膜进行烧成而获得所述绝缘层的