1. Definition of wire drawing die

It usually refers to various dies for drawing metal wires, as well as drawing dies for drawing optical fibers. All wire drawing dies have a hole in the center of a certain shape, round, square, octagonal or other special shapes. When the metal is pulled through the die hole, the size becomes smaller and even the shape changes.

Second, the type of drawing die

1. Steel molds-steel molds are sufficient for drawing soft metals (such as gold and silver). The steel molds can have multiple holes with different diameters.

2. Tungsten carbide die-drawn steel wire (steel wire) generally uses a tungsten carbide die (Tungstencarbidenib), the typical structure of this type of die is a cylindrical (or slightly tapered) cemented carbide core inlay tightly In a round steel case, there are Bellradius, Entranceangel, Approachangle, Bearing and Backrelief in the inner hole of the mold core .

3. Steel wire dies-for drawing non-ferrous metal wires, such as copper and aluminum, wire drawing dies similar to steel wire dies are often used, and the inner hole shapes are somewhat different.

4. Polycrystalline mold-polycrystalline molds (man-made diamonds) can be used to draw thin wires, as well as wire drawing molds that use natural diamonds