Polycrystalline Diamond Wire Drawing Dies

1.It has the wear resistance, hardness and good thermal conductivity 2.long useful life ,used in high-speed drawing of alloy Product Description

All natural diamonds are strictly selected, grinded and polished by ourselves. The production of our wire-drawing dies is based on special technical processes, which result in slighter attrition of our high-quality wire-drawing dies. Also as outcome of these special technical processes, our tungsten carbide enameling dies are characterized to have surpassing leak-tightness. Furthermore, our extrusion tips and extrusion dies are famed for their extremely high concentricity and precision.

Reduction  Angles  &   Bearing  Length  of  Diamond  Drawing  Dies
Area  reduction	Lead/  Zinc/Argentine  /Gold	Aluminum  /  Nickel  /  Copper	Brass  /  Bronze  /Stainless  steel	High  carbon  steel	Hot  tungsten
5-8%	14°	10°	9°	8°	10°
8-12%	16°	12°	11°	10°	10°
12-16%	18°	14°	13°	12°	12°
16-25%	22°	18°	16°	15°	14°
25-35%	24°	22°	18°	18°	16°
Bearing  length	0.2  -  0.5d		0.3  –   0.8d

 

Tolerance  &   Case  of  Diamond  Drawing  Dies
Diameter		Tolerance	Roundness	Case
inch	mm	mm	mm	mm
≤ 0.0008	≤ 0.020	0.0006	0.0003	Φ 25× 6
0.0008  –   0.0019	0.020  –   0.050	0.0006	0.0003	Φ 25× 8
0.0020  –   0.0039	0.051  –   0.100	0.001	0.0005	Φ 25× 8
0.0040  –   0.0079	0.101  –   0.200	0.001	0.0005	Φ 25× 8
0.0080  –   0.0199	0.201  –   0.500	0.0015	0.0008	Φ 25× 8
0.0200  –   0.0399	0.501  –   1.000	0.002	0.001	Φ 25× 10
0.0400  –   0.0590	1.001  –   1.500	0.0025	0.0013	Φ 25× 12
0.0591  –   0.0866	1.501  –   2.200	0.003	0.0015	Φ 25× 14
0.0867  –   0.1299	2.201  –   3.300	0.004	0.002	Φ 28× 16Φ 30× 16
0.1300  –   0.1810	3.302  –   4.600	0.005	0.0025	Φ 28× 18Φ 30× 18
0.1811  –   0.2164	4.601  –   5.500	0.006	0.003	Φ 43× 26
0.2165  –   0.3150	5.501  –   8.000	0.008	0.004	Φ 43× 30

Polycrystalline Diamond Wire Drawing Dies