Natural Diamond Die (ND)
Natural diamond four flour with set of technology import metal powder, sintered metal powder to HRC60 hardness.Natural diamond raw materials in their after every grain of carefully chosen grinding, choose diamond of 111 face, with superior quality and wear-resisting properties, accurate die hole, a high degree of finish and precise size so that the uniform deformation of metal wire, metal wire surface quality of the best.Suitable for tungsten, gold, electromagnetic wire, stainless steel wire, coated wire, semiconductor bonding wire and other metal wire drawing.
Product Parameters
| Model | Feeding standard mm | Wire drawing die aperture (mm) | Recommended maximum aperture (mm) |
| 1#ND | ≥ 0.65 | 0.012-0.015 | 0.15 |
| 2#ND | ≥ 0.70 | 0.03-0.20 | 0.20 |
| 3#ND | ≥ 0.80 | 0.20-0.30 | 0.30 |
| 4#ND | ≥ 1.00 | 0.30-0.40 | 0.40 |
| 5#ND | ≥ 1.20 | 0.40-0.50 | 0.50 |
| 6#ND | ≥ 1.40 | 0.50-0.60 | 0.60 |
| 8#ND | ≥ 1.60 | 0.60-0.80 | 0.80 |
| 10#ND | ≥ 1.80 | 0.80-1.00 | 1.00 |
| 12#ND | ≥ 2.10 | 1.00-1.20 | 1.20 |
| 14#ND | ≥ 2.50 | 1.20-1.40 | 1.40 |
| 16#ND | ≥ 2.80 | 1.40-1.60 | 1.60 |
Typical reduction angles and bearing length
| Area reduction per draft | lead Silver Zinc Gol |
Aluminum Nickel Copper |
Brass Bronze Stainless Steel |
High carbon steel | Hot tungsten |
| 8-12% | 16 | 12 | 11 | 10 | 10 |
| 12-16% | 18 | 14 | 13 | 12 | 12 |
| 16-25% | 22 | 18 | 16 | 15 | 12 |
| 25-35% | 24 | 22 | 19 | 18 | 14 |
| Sizing length | 0.2-0.5d | 0.4-0.8d | |||
