| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate a viewable defect on a surface and achieve increased transparency by reducing haze, in a nanostructure which is obtained by using a drum-like molded body for manufacturing the nanostructure, whose surface has a tapering pore.SOLUTION: A manufacturing method of a drum-like molded body for manufacturing a nanostructure, which is used for continuously manufacturing the nanostructures, includes a process of forming a tapering pore whose surface roughness has an average period of 50 nm or more and 400 nm or less in at least one direction on a surface of an aluminum tube stock body. The aluminum tube stock body contains 100 mass ppm or less of iron, and is formed of an aluminum material body and by the method including Mandrel extrusion molding.</p> |
