The selection of on-site sling operation and lifting method should be combined with actual conditionsPetrochemical large equipment lifting is an important construction procedure in the petrochemical industry. According to the parameters of the volume and quality of the equipment to be hoisted, the h

Identification and certification that slings should have before entering the warehouseBefore the slings are put in the warehouse, the management department should organize the inspections at the factory and collect and check the valid identification and identity of the slings, which include:1. Sling

The wire rope is capable of transmitting long distance loads.2. The bearing safety factor is large and the use is safe and reliable.3. Light weight, easy to carry and transport.4. Can withstand a variety of loads and variable loads.5. Has high tensile strength, fatigue strength and impact toughness

According to the contact state between adjacent wires in the strand, it is divided into three types: point contact, line contact or surface contact.1. Point contact wire rope: The diameter of the steel wire in the strand is the same, the angle between the wires of each layer is the same, and the lay

Single strandAlso known as a single rein, it is made of a cord made of wire around a center wire or a hemp core, and one or more layers of steel wire can be twisted.Double reinsIt is made of double-strand rope around the core (steel core or fiber core) and can be made of one or more layers of steel

1. Phosphating coated steel wire rope (Chinese patent), referred to as phosphating steel wire rope, made of steel wire phosphating film weight 3-60 g / square meter, after phosphating, the steel wire is not cold drawn before twisting, directly twisting the strand , steel core and steel wire rope, ph

Steel wireThe wire rope needs to bear the alternating load during the use of the wire rope, and its performance is used.It is mainly determined by the mechanical properties of the steel wire, the surface state of the steel wire and the structure of the steel wire rope. The steel wire material consis

The steel wire rope is a spiral steel wire bundle which is made of steel wire which meets the requirements of mechanical properties and geometrical dimensions according to certain rules. The steel wire rope is composed of steel wire, rope core and grease. The wire rope is firstly made up of a multi-

The anchor chain is formed by a plurality of chain links, and the size is expressed by a chain diameter of about (mm). According to whether there is a support in the middle of the link, it is divided into a chain anchor chain and a non-stop anchor chain. The anchor chain can be made by forging, cast

The anchor chain has to work. The most basic condition is to hook things on the seabed. If the anchor chain is not long enough, the anchor will not work. If the bottom of the sea is flat, or if the hook is not fixed, or the hook is not strong, if it is calm, if the waves are too large, the anchor w