Because the use of wire rope slings in harsh environments will lead to corrosion and wear of wire ropes, they should be lubricated regularly during production and use, which can effectively extend the service life.

First, the rope core oil, surface oil and rope surface oil shall be treated during the production process.

Oil immersion of rope core is an important work in the production of wire rope rigging. Before oil immersion, the rope core shall be carefully dried to water and the oil content of rope core shall be increased as much as possible. The oil content depends on the drying degree, oil temperature and oil immersion time of the core. Generally speaking, the higher the oil content of the rope core, the better. The rope core with large oil content can not only improve the internal lubrication of the wire rope, but also prevent the rope core from mildewing, deterioration and decay.

The rope core oil immersion method is divided into normal pressure oil immersion method and vacuum oil immersion method. It is easy to absorb oil under normal pressure in the oil tank, but the coil is not easy to absorb oil and the oil is uneven. The process of vacuum pressure oil immersion is complex, but the rope core coil can be immersed in oil, and the oil immersion of rope core is uniform, with high oil content. The immersion temperature of the core varies with the immersion method.

The surface oil can be sprayed during stranding and rope splicing, or dipped after rope splicing. Spraying is to heat the molten liquid oil to the joint between the twister and the rope machine through oil pipe pressurization and inject it into the twister cone, so that the oil fills the free space between steel wires and strands. The spraying device can also be configured separately according to the