MANUFACTURING METHOD AND MANUFACTURING DEVICE OF FIN-INTEGRATED TYPE TUBE FOR HEAT EXCHANGER

PROBLEM TO BE SOLVED: To manufacture a fin-integrated tube which does not interpose a solder material therein without the need for a large-scaled device and a long period of manufacturing time, at high quality, and obtain an automobile heat exchanger which is inexpensive and high in performance.SOLU...

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Hauptverfasser:	FURUKAWA YOSHINOBU, ITO TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BLASTING DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEAT EXCHANGE IN GENERAL HEATING LIGHTING MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To manufacture a fin-integrated tube which does not interpose a solder material therein without the need for a large-scaled device and a long period of manufacturing time, at high quality, and obtain an automobile heat exchanger which is inexpensive and high in performance.SOLUTION: A base end of a cylindrical raw material tube 2' is rotatably held to a tube holding part 3, rolling rollers 41 to 43 surrounding an external peripheral face of the tube from three directions are arranged at a tip side at prescribed lead angles, and a rolling roller head 4 is sent to the axial direction. Shapes of crests R of many mountain portions 44 of each of the rolling rollers 41 to 43 are gradually changed in their axis directions so that widths of the crests R gradually become large from one end side toward the another end side of the rolling roller for serving as a gradually changing roller. The rolling rollers 41 to 43 cooperate to process the cylindrical raw material tube 2' in such a manner that a thickness of its outer periphery is deformed in helical protrusion and it is gradually expanded to erect from the tube in a fin shape.