The functions, working principle, types and applications of wire drawing machines are described in detail below:
Functions:
1. Changing diameter: wire drawing machine is able to gradually stretch coarse metal wires into fine wires so as to meet the requirements of different diameters.
2. Enhancement of hardness: During the drawing process, the lattice structure of the wire undergoes deformation, resulting in an increase in hardness and strength.
3. Surface treatment: During the wire drawing process, the surface of the wire is further cleaned to improve its surface smoothness and corrosion resistance.
Working Principle:
1. Feeding: Metal wires or bars are fed into the wire drawing machine.
2. Stretching: The metal wire passes through one or more drawing dies (moulds), the aperture of which decreases gradually, and the wire is stretched thinner as it passes through the moulds.
3. Cooling: Some drawing machines will cool the wire during the stretching process to control temperature and prevent annealing.
4. Winding: After drawing, the wire is wound onto a reel for storage and further processing.
Types:
1. Single Die Drawing Machine: The wire passes through the drawing die only once and is suitable for producing thicker wire.
2. Multi-die Drawing Machine: The wire passes through a series of drawing dies with decreasing apertures, suitable for producing finer wires.
3. Continuous Drawing Machine: The wire passes through a number of drawing dies in succession to achieve rapid continuous production.
4. Water Tank Drawing Machine: During the drawing process, the wire passes through a water tank filled with coolant to control temperature and increase productivity.
Wire drawing machine plays an important role in the metal processing industry, which not only improves the production efficiency and quality of metal wire, but also promotes the application and development of metal wire in various fields. With the progress of technology, modern wire drawing machines pay more and more attention to automation, intelligence and energy saving and environmental protection.