Specialty Wire Drawing Dies

CVD/NANO Diamond Coated Drawing Dies

Product Name	NANO Diamond Drawing Dies; NANO/CVD Diamond Die; NANO Drawing Dies; NANO Wire Drawing Deis; NANO Diamond Coated Dies
Hole Sizes	0.650-75.000(mm); 0.0255-2.9527(inch)
Applications	Copper wire,aluminum wire,wire and cable,stainless steel wire,medium and low carbon steel wire,stainless steel wire,low carbon steel wire,copper pipe,aluminum pipe,stainless steel pipe,etc.
Blank Type	CVD/NANO Diamond

CVD (Chemical Vapor Deposition) 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 tools.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

Tolerance

Diameter(inch)	Diameter(mm)	Tolerance(mm)	Roundness(mm)
≤0.00157	≤0.040	0.0003	0.0002
0.00158-0.00393	0.041-0.099	0.0005	0.0003
0.00394-0.01968	0.100-0.499	0.001	0.0005
0.01969-0.03936	0.500-0.999	0.0015	0.0008
0.03937-0.05905	1.000-1.499	0.002	0.001
0.05906-0.08661	1.500-2.199	0.003	0.0015
0.08662-0.12992	2.200-3.299	0.004	0.002
0.12993-0.18110	3.300-4.599	0.005	0.0025
0.18111-0.22834	4.600-5.799	0.006	0.003
0.22835-0.29921	5.800-7.599	0.007	0.0035
0.18111-0.41338	4.600-10.499	0.008	0.004

α(ss)Entrance	The inlet area is polished so that the drawing fluid can circulate smoothly
α(sp)Approach	The lubrication area is finely polished, so that the wire can be easily excessive
α(rs)Reduction	The working area can reduce the drawing force,and the change-point contact is face-to-face angle drawing,which reduces friction and die wear.The deformed structure is more reasonable and stable.The upper line can be drawn smoothly when the incoming line becomes thicker or thinner.
d(k)Bearing	The fixed warp area can ensure the precise diameter, smoothness and out-of-roundness of the wire for a long time.
α(so)Back Relief	The safety angle can ensure that the wire is drawn without scratches,and the life expectancy tends to be longer.
α(sw)Exit	The deepening of the outlet can greatly support the tensile stress of the outlet.

Typical Die Reduction Angles for Various Metals

Elongation	Area Reduction	Lead Zinc Silver Gold	Hard-Alalloys Nickel Copper	Brass Cualloys Stainless Steel	High Carbon Steel	Hot Drawing of Tungsten
5-9%	5-8%	14	10	9	8	10
9-14%	8-12%	16	12	11	10	10
14-19%	12-16%	18	14	13	12	12
19-33%	16-25%	22	18	16	15	14
33-54%	25-35%	24	22	18	18	16

Tolerance of Reduction Angle:+/-2°

CVD/NANO Diamond Coated Dies

Customized Design And Processing CVD NANO Diamond Coated Drawing Dies for Medium and Large Bare Copper Wire Drawing Machine

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.
CVD Diamond Wire Drawing Dies the bundle and strand moulds 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 mold 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 mold of the tubular and basket strander is inside the machine to guide and concentrate the wire.

The Wire Drawing Die is a very important and consumable product used by various metal wire manufacturers to draw wires.The application range of drawing dies is very wide,mainly used for drawing straight and difficult-to-machine objects such as bars,wires,pipes,etc.,and generally suitable for drawing processing operations of metal and alloy materials such as steel,copper,tungsten,molybdenum,etc.Since the cost of the wire drawing dies can reach more than half of the wire drawing cost,how to reduce the consumption cost of the wire drawing die and increase its service life is the primary problem that metal wire production units urgently need to solve.
Wire Drawing Dies have a wide range of uses,such as:high-precision wires used in electronic devices,radars,televisions,instruments and aerospace,as well as commonly used tungsten wires,molybdenum wires,stainless steel wires,wire and cable wires and various alloy wires,all of which are made of diamond It is drawn by a wire drawing die.Due to the use of natural diamond as the raw material,the diamond wire drawing die has strong wear resistance and extremely long service life.