PCD (polycrystalline diamond) is made of micron-sized diamond particles and binders to be sintered under high temperature and high-pressure conditions. It has the advantages of high hardness, good wear resistance, and strong impact resistance. It has the advantages of uniform wear and long life during the use of the wire drawing die, which suits for high-speed drawing. Since the PCD is isotropic in macroscopicity, it does not suffer from the uneven wear of the die holes and the non-circularity of the die holes like the single crystal diamond. In addition, PCD is widely used in the wire drawing industry because it is much cheaper than natural and mono diamond.
At present, most diamond wire drawing dies use PCD wire drawing blanks. Depending on the different bonds, PCD blanks can be classified into cobalt-based and silicon-based. The cobalt-based PCD blank contains the metal bond and has a good processability. It can be processed by EDM (electrical discharge machining), laser, ultrasonic technology. But the presence of metal cobalt makes the diamond easy to graphitize at high temperatures, so the cobalt-based PCD blank is suitable to be processed and used at temperatures below 650 ℃.
Products advantage :
High wear resistance
The good and wide processability
Randomly and freely arrangement of diamond micron particles in die blank makes the uniform wear to ensure the roundness of the drawing wire
For drawing soft wire: Wire and cable, copper wire, copper-clad steel wire, copper clad aluminum wire, aluminum wire, aluminum-magnesium alloy, etc.
For drawing hardwire: Iron wire, stainless steel wire, nickel wire, chrome wire, molybdenum wire, tungsten wire, copper-clad steel wire, cutting wire, etc.