Nano Diamond Coated Wire Drawing Die is a new technology that has been developed recently, and its main method is to coat diamond film on the hard alloy wire drawing dies. The diamond film is pure diamond polycrystalline.It not only has the smoothness and temperature resistance of single crystal diamond, but also has the advantages of (PCD) polycrystalline diamond wear resistance and low price. It has achieved good results in replacing rare (ND) natural diamonds in the preparation of wire drawing dies. Its wide use will bring new vitality to the wire drawing die industry.
Process and technology:
Targeted pretreatment process:to make the coating and the substrate closely combined
Micro diamond coating: excellent wear resistance
Surface nano diamond coating :excellent surface finish and low friction coefficient
Optimization of pass design by computer simulation

The advantages of NANO Diamond Coated Dies are as follows:
1. Long service life:the service life of copper aluminum wire,low carbon steel wire,medium carbon steel wire,cable stranded wire,welding wire and die is 20-30 times more than that of cemented carbide mold,and that of cable stranded wire is more than 50 times that of cemented carbide.
2. The size control precision is high,the wire size is stable,and the size consistency can be maintained for a long time.
3.  The inner hole of the mould is bright,the self lubrication is good,the surface friction coefficient is small,the surface finish of the wire rod is high,the material is not sticky,the quality of the finished wire is good,and the loss of equipment and equipment can be reduced at the same time.
4.  The length of wire is 1% – 2% longer than that of traditional mold.
5. Repair free mode,maintenance free, reduce the number of downtime detection, mold change, greatly improve production efficiency, unit time production significantly increased,saving a lot of labor costs.
6. It is suitable for drawing process without pickling,environmental protection and energy saving.
Nano Diamond Compacting Dies are used to guide and / or organize the wire through the bunching machine and stranding machine, the winding drum of the double and single twist bunching machine is inside the machine, and the die is fixed at the entrance of the machine to collect the wire.
In some cases,the die is fixed to the front of the winding drum inside the machine to regulate the wire, and the strand die of the tubular and basket strander is inside the machine to guide and concentrate the wire.