Single crystal diamond has high hardness and the characteristics of good wear resistance, this kind of mold drawing wire rod surface finish is very high, but because of the structure of anisotropy, resulting in its hardness is also anisotropy, so that the wear of mold hole uneven, the product is not round, coupled with scarce resources, expensive, Generally used as the surface quality requirements of the thin wire drawing die or finished cable die. Single crystal diamond wire drawing die core is divided into two kinds: natural diamond wire drawing die core and man-made single crystal diamond drawing Die core.
