EXTRUSION-MOLDED HOLLOW MATERIAL, AND APPARATUS AND METHOD FOR MOLDING SAME

• Main Author: SAKAE, AKIRA
• Format: Patent
• Language: English; French; Japanese
• Published: 14.06.2007
• Subjects: AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING

An extrusion-molded hollow material which can be manufactured in a small number of manufacturing steps and has a stable quality. A hollow material (10) is manufactured by extrusion molding. Parallel sections (21, 22) have a fixed width in one direction on a cross-section vertical to an extrusion dir...