Corrosion on stainless steel wire rope hoist

    Wire rope hoist  general outdoor use in many cases, at the time a little long rope natural rust corrosion, especially in the harsh environment of harmful gas and use electric hoist, electric hoist for corrosion damage is more serious.
      Damage due to corrosion present on the surface of the hoist rope oxygen affinity differences, so that the surface of the anode of a local metal, another local metal adjacent the cathode, forming a large number of small cells. In a small battery under the action of many circular pits formed on the surface and gradually deepened. These pits became a stress concentration points, the source of fatigue cracks. Corrosion of the wire cross-sectional area decreases, flexibility and reduced ability to withstand shocks.
      rope hoist  rope to prevent corrosion damage in two ways, one is the ground oiled, often in a state of motion for oiled rope is essential. Second is the use of harsh environment, the relative movement of the rope can choose less zinc, aluminum and other special rope. These wire exposed to the atmosphere of the surface of zinc or aluminum hydroxide, zinc and hydrogen to form aluminum oxide film, and can effectively prevent corrosion of the rope hoist rope.