Chain is a lifting appliance composed of chain links. It is easy to bend and easy to use. It is widely used in cranes and electric hoists. It is one of the common lifting slings. Chain can be divided into chip chain and welding chain. Chip chain is generally installed in the equipment to transmit power. Welding chain is a kind of lifting sling, which is often used as lifting sling. In general, most of our common are welding chains. The advantage of welding chain is that the welding chain has good flexibility and can directly use the small diameter sprocket wheel and drum, thus reducing the size of the mechanism. The disadvantage is that the elasticity is small, self significant, the contact part of the chain link is easy to wear, the movement of random impact load is not allowed, the running speed is low, and the stability is poor.
The reason for chain rust is generally due to improper protection. Lifting tells you to pay attention to the following four points: as we all know, lifting chain rigging and flexible sling are very different. Flexible sling is woven from high-strength polyester filament, with wear-resistant and oxidation-resistant characteristics. The lifting chain sling is welded and assembled by metal rings. Compared with the flexible sling, it is easy to wear and oxidize. In order to ensure the life of the lifting chain sling, we need to add lubricating oil to the chain sling to reduce the chance of wear and oxidize.
When lifting chain works on the sliding drum, its speed shall be controlled, and the best speed is 1m / s.
Chain can be divided into chip chain and welding chain. Chip chain is generally installed in the equipment to transmit power. Welding chain is a kind of lifting sling, which is often used as lifting sling. In general, most of our common are welding chains. The advantage of welding chain is that the welding chain has good flexibility, and can directly use the small diameter sprocket wheel and drum, thus reducing the size of the mechanism. The disadvantage is that the elasticity is small, self significant, the contact of the chain link is easy to wear, the movement of random impact load is not allowed, the running speed is low, and the safety is poor. In domestic lifting equipment plants, the chain is generally 80 grade lifting chain, which has excellent impact resistance, bearing capacity and toughness, and can meet most of the equipment requirements.