First, the definition of wire drawing die

Usually refers to various metal wire drawing dies, as well as fiber drawing dies. All drawing dies have a hole with a certain shape in the center, 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 when pulling soft metals (such as gold and silver). The steel molds can have multiple holes with different diameters.

2. Carbide die-drawn steel wire (steel wire) generally uses a carbide die (Tungstencarbidenib). The typical structure of this die is a cylindrical (or slightly tapered) cemented carbide core tightly inlaid In a round steel case (case), the inner hole of the mold core has a bell mouth (Bellradius), entrance cone (Entranceangel), deformation (working) cone (approachangle), sizing belt (bearing) and exit angle (backrelief) .

3. Steel wire die-drawing non-ferrous metal wire, such as copper and aluminum, also uses wire drawing die similar to steel wire die. The shape of inner hole is somewhat different.

4. Polycrystalline mold-the thin wire can be used for polycrystalline mold (artificial diamond), as well as the drawing mold for natural diamond.