Due to the harsh operating environment of the steel wire rope rigging, which leads to corrosion and wear of the steel wire rope, regular lubrication is required during production and use, which can effectively extend the service life. First, the rope core oil, surface oil and rope surface oil should be treated during the production process.
Rope core oil immersion is an important work in the production of steel wire rope slings. The rope core should be carefully dried to water before oil immersion, and the oil content of the rope core should be increased as much as possible. The oil content depends on the dryness of the core, oil temperature and oil 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 condition of the steel wire rope, but also prevent the rope core from becoming moldy, degraded and rotted.
The rope core oil immersion method is divided into atmospheric oil immersion method and vacuum oil immersion method. It is simple and easy to suck oil under normal pressure in the oil tank, but the inside of the coil is not easy to suck oil, and the oil is uneven. The vacuum pressure oil immersion process is complicated, but the rope core coil can be immersed in oil, the rope core is evenly immersed in oil, and the oil content is high. The immersion temperature of the core varies with the immersion method.
The surface oil can be sprayed when twisting the strands and connecting the rope, or it can be impregnated after the rope is connected. Spraying is to press and heat the molten liquid oil through the oil pipe to the joint of the twister and the rope machine, and inject it into the twisting cone, so that the oil fills the free space between the steel wire and the steel wire and between the strands. The spraying device can also be configured separately according to the machine. The surface of the steel wire rope is coated with oil by spraying method.
The method of brushing, dip coating and pouring on the surface of the wire rope is to set an oil tank between the traction sheave of the rope take-up machine and the wire drawing machine, press the wound wire rope into the molten grease for oiling, or install it above the oil tank The oil applicator sucks the oil, and then spreads the oil on the surface of the wire rope. This oiling method is easy to cause leakage on the surface of the rigging of the steel wire rope, and can only be oiled on the surface of the steel wire rope. The inner layer of the steel wire rope and the inner layer of the steel wire rope are not well coated, which will affect the service life of the steel wire rope. In order to make up for the shortcomings of this method, it is recommended to use the casting method to lubricate the steel wire in the strand when twisting the strands to improve the quality of the surface coating of the wire rope.