Abstract:pointed outthe importance ofsurface strengthening tecnnology formould, while, the new surface strengthening technology bywhich the service life ofmould is improved has been introduced from the new technologies, such as hotspraying, ion implantation, laser surface hardening treatmen,t vapordeposition,rare earth elemen,t and nano-surface engineering etc.
Key words:surface strengthening technology, service life ofmoulds, application and development
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