The Characters of tungsten carbide drawing dies
The main composition of tungsten carbide drawing dies is WC-CO generally ,and few grades are added rare elements .Its main advantages are high hardness and wear-resistance .
1) High Wear-Resistance
The tungsten carbide drawing dies have very high wear-resistance ,it ensures the drawn products’ size and precision no matter how long wires ,bars or tubes they processed
2) Fine Polishing Property
The inner hole of the tungsten carbide drawing dies could be polished into mirror surface ,so as to keep the high quality surface of drawn products
3) Low Adhesion Rate
In the drawing process, the tungsten carbide drawing dies have very low adhesion to the metal materials, thereby enhancing durability of drawing dies and make the drawn materials obtain high quality surface finish .
4) Small Friction Coefficient
In the drawing process ,the smaller friction coefficient ,the lower power consuming ,and improve working efficiency.
5) High Thermal Conductivity
In the drawing process ,the thermal aroused is conducted out easily,so as to enhance the drawing die’s service life
6) Good Corrosion-Resistance Performance
The advantage of good corrosion-resistance performance is showed in generally wet-lubricating drawing process ,especially it is showed better in acidic lubricating drawing process .
