B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
205/42
B21C 3/02 (2006.01) B01J 3/06 (2006.01) C04B 35/5831 (2006.01)
Patent
CA 1050482
ABSTRACT OF THE DISCLOSURE: Wire drawing dies having improved life, relatively lower drawing force requirements and producing smooth sur- face on wires drawn therethrough comprise compacts of polycrystalline diamond, polycrystalline cubic boron nitride and mixtures thereof, which include a centrally-located double tapered hole having micro-rough walls, the micro- rough walls being densely packed with a lubricant for wire drawing.
255554
Carrison Lynn C.
Wetzel Robert G.
LandOfFree
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