System on line equipment drawing reel and cone pulley surface need to be the excellent properties of wear resistance and fatigue resistance, otherwise the service life is short, often need to change, greatly increased the production cost of the customer
System on line equipment drawing reel and cone pulley surface need to be the excellent properties of wear resistance and fatigue resistance, otherwise the service life is short, often need to change, greatly increased the production cost of the customer, reel in drawing process improve the drawing force, the transfer between the drum and wire is relying on the outside of the drum and the friction between wire, drum under friction wear. When the surface of the reel contacts with the steel wire, it bears the high pressure of the steel wire drawing on the surface under the dry friction state of water shortage and lubrication, as well as the large amount of drawing heat brought by the steel wire. Therefore, the reel is a vulnerable part that bears high temperature and high wear.
The surface wear of reel directly affects the quality of steel wire, and the excessive wear leads to the increase of production cost and the decrease of production efficiency. According to the base material, the drum can be divided into cast iron, cast steel, low carbon steel, medium and high carbon forged steel, medium carbon steel, etc. Different substrate materials, using their own surface treatment, will appear different wear patterns.
The wear resistance of the drum depends on the hardness of the surface coating and also on the strength and hardness of the substrate. For the above 5 kinds of cast iron rolls with poor shear strength of matrix, the ability of abrasive wear and adhesive wear is poor. Low carbon steel drum with soft base material has poor resistance to plastic deformation. And the high strength and hardness of the high carbon steel roller wear resistance is obviously better, especially after the secondary surface hardening and surface coating treatment of the carbon steel roller wear better, the reel in a long-term low wear state.
Using supersonic flame spraying technology to spray carbide coating on the surface of drawing reel, drawing machine, drawing wheel, wire wheel, drawing cylinder, rewinding reel, guide groove and other parts, the surface hardness can reach HRC68 or so, far higher than abrasive steel or chilled cast iron wear resistance; The matrix of these parts can also be made of ordinary steel or cast iron, which reduces the cost and prolongs the service life.
