| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a guide member for discharging a molten material from a slit to the outside. <P>SOLUTION: The guide member is formed by forming a cemented carbide layer using a thermal spray method on an edge of a boundary through which the molten material is discharged to the outside, and subjecting the formed cemented carbide layer to a friction-stir process to reform it through refinement of crystal grains of a binder phase contained in the cemented carbide layer, thereby forming a cemented carbide reforming layer which composes the guide member. The guide member is suitable for a T-die used for extrusion molding of the molten material. The edge where the cemented carbide reforming layer is formed is an inner wall on an opening end side of the slit of the T-die for guiding the molten material to the outside. <P>COPYRIGHT: (C)2012,JPO&INPIT |
