Member used for casting

Details Member used for casting Member used for casting

2007-01-09

2007-01-09

Lin, Kuang Y. (Department: 1725)

Metal founding

Means to shape metallic material

Pressure shaping means

C164S138000, C164S113000

Reexamination Certificate

active

11198167

ABSTRACT:
A casting member comprising hot-die steel or high-speed steel as base material and having coating layers at least on its working plane, wherein the outermost layer among the coating layers consists essentially of at least one nitride, oxinitride or carnonitride composed mainly of V, and another coating layer comprising at least one nitride, oxinitride or carnonitride composed mainly of Cr is formed as a layer just above the base material. If necessary, an intermediate layer comprising at least one nitride, oxinitride or carnonitride composed mainly of V and Cr may be formed as a coating layer on the boundary surface between the outermost layer and the layer just above the base material. The thickness of the outermost layer is preferably 0.5 to 5.0 μm, the thickness of the layer just above the base material is preferably 0.5 to 3.0 μm, and the thickness of the intermediate layer is preferably 1.0 μm or less. Said casting member has excellent resistance to seizure, resistance to cracking and resistance to waste by melting.

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patent: 2004-202512 (2004-07-01), None

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