초록 ▼

A metal mold for manufacturing amorphous alloy. A metal mold is composed of a lower mold having a portion for fusing metal material and a cavity portion, and an upper mold working with the lower mold which presses molten metal in the portion for fusing metal material and pours the molten metal into

A metal mold for manufacturing amorphous alloy. A metal mold is composed of a lower mold having a portion for fusing metal material and a cavity portion, and an upper mold working with the lower mold which presses molten metal in the portion for fusing metal material and pours the molten metal into the cavity portion to mold. And, surface roughness of a part of or all of an inner surface of the metal mold is arranged to be more than 12 S in JIS indication.

대표청구항 ▼

[ What is claimed is:] [1.]1. A metal mold for manufacturing amorphous alloy in which molten metal, obtained by fusing a metal material with a high energy heat source capable of fusing the metal material, is transformed into a predetermined configuration, the molten metal is cooled at over a critica

[ What is claimed is:] [1.]1. A metal mold for manufacturing amorphous alloy in which molten metal, obtained by fusing a metal material with a high energy heat source capable of fusing the metal material, is transformed into a predetermined configuration, the molten metal is cooled at over a critical cooling rate simultaneously with or after the transformation, and thereby molded into the predetermined configuration, the metal mold comprising a mold body having a inner face, a surface roughness of at least a part of the inner face of the metal mold being equal to or more than 12 S in JIS indication, a part of or the whole inner face of the metal mold touching the metal material is not surface-treated with mold release agent or lubricant, the metal mold including a lower mold having a portion for fusing metal material and a cavity portion, and an upper mold which works together with the lower mold to press the molten metal on the portion for fusing metal material and cause the metal material to flow into the cavity portion, and thereby mold the metal material.