(1) The installation foundation of the wire drawing machine must be very stable to avoid vibration;
(2) During installation, the wire drawing axis should be adjusted to be symmetrical with the center line of the die hole, so that the stress of the wire and the wire drawing die is uniform;
(3) Avoid frequent starting and stopping during the wire drawing process, because the friction caused by the tensile stress at the start of the drawing is much greater than the friction during normal drawing, which will inevitably increase the wear of the die.
In addition, the wire used for drawing must be pre-treated: surface pre-treatment and heat treatment.
(1) Surface pretreatment: For wires with dirty surfaces and a lot of impurities, they must be cleaned and dried before drawing; for wires with a lot of oxide scale on the surface, they must be acid-thinned and dried before drawing; for wires with peeling, pits, heavy skin, etc. on the surface, they must be polished by a grinder before drawing;
(2) Heat treatment: For wires with excessive hardness or uneven hardness, the hardness must be reduced by annealing or tempering, and the wire must maintain good hardness uniformity before drawing.
