| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus wherein a corner material such as an internal corner material, an external corner material and the like with a recessed and projected pattern can be continuously and efficiently manufactured by an extrusion molding method, a low-cost normal flat receiving component as a receiving component can be used both for molding an internal corner material and an external corner material and the corner material with the recessed and projected pattern can be economically manufactured. SOLUTION: An endless belt 4 having the recessed and projected pattern die 7 on a surface is introduced inside a mouthpiece 3 of an extrusion molder 1 via a guide roller 5, and the endless belt 4 is allowed to be in synchronism with an extruding speed of a hydraulic material inside the mouthpiece 3 with the guide roller 5. Then, the hydraulic material is pushed, and the hydraulic material as a corner material crude board 12 is extruded from the mouthpiece 3 together with the endless belt 4. Thereby, a specific shape is molded, and the corner material crude board 12 and the endless belt 4 are, under a state wherein they are bonded to each other, conveyed for a specific distance. Thereafter, both are alienated from each other and thereby a corner material with a recessed and projected pattern wherein the recessed and projected pattern is added to a surface of the corner material 12 extrusion molded by alienating both from each other, is manufactured.
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