Method to form a dust collecting layer on a porous body without using a binder

To provide a manufacturing method of a filter element in which fine particles constituting a dust-collecting layer are not peeled off and high performance is maintained over a long period of time even when the filter element is scaled up. A layer of fine particles containing low melting point fine p...

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Bibliographische Detailangaben
Hauptverfasser:	BETHKE, DINO, HAMMER, CHRISTIAN, HERDING, URS, RAABE, JULIAN, KANEKO, MASANORI, NIHEI, YUJI, HAJEK, STEFAN, ITO, TAKAHIRO, MARX, MARTINA, HOSI, TORU, OGURA, SHINICHI, WEIH, CHRISTOPH, SHINODA, KEN, MATSUMOTO, HIROMICHI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide a manufacturing method of a filter element in which fine particles constituting a dust-collecting layer are not peeled off and high performance is maintained over a long period of time even when the filter element is scaled up. A layer of fine particles containing low melting point fine particles and small diameter fine particles is deposited and formed on the surface of a filter element material while sucking the filter element material, and the layer of the fine particles is heated by a heating means exemplified by an infrared heater and an oven to sinter the fine particles to form a dust-collecting layer.