Because steel wire rope rigging is sometimes used in harsh environments, it can cause rust and damage. Therefore, it is necessary to oil it on time during manufacturing and use, which can effectively increase its service life
Firstly, in production, the core of the rope should be immersed in oil, the surface of the strand should be coated with oil, and the surface of the rope should be coated with oil
Soaking the rope core in oil is a major task in the production of steel wire ropes. Before soaking the rope core in oil, it is necessary to carefully dry and remove water. When soaking in oil, the oil content of the rope core should be increased as much as possible. The amount of oil content depends on the drying level of the rope core, the ambient temperature of the grease during immersion, and the immersion time. Generally speaking, the higher the oil content of the rope core, the better. The rope core with high oil content can not only improve the lubrication standard of the internal structure steel wire of the double leg chain complete rigging, but also avoid mold growth, quality change, and decay of the rope core
The rope core immersion method can be divided into two types: oil cup natural pressure immersion and vacuum pressure immersion. The natural pressure immersion of the oil cup is simple and easy to operate, but the internal structure of the rope core coil is not easy to be soaked, resulting in uneven oil immersion. The vacuum pressure oil immersion processing process is complex, but the rope core coil can be soaked, and the oil immersion of the rope core is uniform and has a high oil content. The ambient temperature of rope core immersion varies with different immersion methods
The surface coating can be applied using the spraying method during stranding and rope laying, or the spraying process and pouring method after rope laying can be selected. Spray painting is a process in which liquid grease, which is heated and melted, is pressurized and distributed along the oil pipeline to the joint of each stranding machine and rope machine. The oil is introduced into the twisting cone, filling the random gaps between the steel wire and the steel wire, as well as between the strands. The spray painting equipment can also be independently configured according to the machine equipment. Apply oil to the surface of steel wire rope and rigging using spray painting method, with uniform and cost-effective oil application
The application of spraying technology and pouring method to oil the surface of steel wire is achieved by setting an oil cup between the traction pulley of the rope closing machine and the take-up machine. The twisted steel wire rope and rigging are pressed into molten grease to apply oil, or the oil is picked up according to the pouring device installed on the top of the oil cup, and then the oil is sprayed on the surface of the ratchet type tight rigging that moves forward
Choosing this type of oil coating method can easily cause leakage on the surface of the steel wire rope rigging, and grease can only be applied to the surface of the steel wire rope rigging. The inner layer of the steel wire rope rigging and the inner layer of the steel wire in the strand cannot obtain very good oil coating, which can affect the service life of the steel wire rope rigging. To address the shortcomings of this type of oiling method, it is proposed to use the pouring method to apply oil to the strands during stranding, so that the steel wires in the strands can be lubricated with grease, in order to improve the surface oiling quality of steel wire ropes