large steel wire pipeIt is a spiral steel wire bundle that meets the requirements of mechanical properties and geometric dimensions and is twisted together according to certain rules. Do you know how it is made?

1. Large steel wire pipe production process

Large steel wire pipe raw materials: The wire rope drawing mentioned here refers to the pickling, phosphating, shelling, and billet making of the raw materials. In this process, it is drawn one or more times to change its molecular structure and make it reach the target diameter. process. The raw materials are ferrous metals with a diameter of 0.14-10.00mm and non-ferrous metals with a diameter of 0.01-16.00mm.

Pickling: the process of washing and rolling the surface of steel wire rope raw materials with acid solution. In the production process of steel wire rope is also called shelling.

Phosphating: In layman's terms, it is the process of immersing a material in a phosphate solution to form a layer of water-insoluble phosphate film on its surface. Corrosion is prevented to some extent.

Large steel wire tube blanking: The center of various drawing metal wire molds has a certain shape of hole, round, square, octagonal or other special shapes. As the metal is forced through the die hole, the size and shape change.

Large steel pipe cold drawing: ordinary round steel, let it through the hole with a diameter smaller than its diameter forced drawing, the diameter of the round steel will become smaller, the length will be elongated. Smaller. After this plastic deformation occurs, the hardness of the steel will increase and the plasticity will basically disappear. This steel can be used where plasticity is not required but only strength is required.

　　2、large steel wire pipeTwisted strands in the production process

The type, structure and use of the strand The type, structure, raw material and production process of the wire rope depend on the use. The steel wire rope generally adopts carbon steel wire with a diameter of 0.1~6.0mm and a round cross-section. When stranding sealed and semi-sealed wire ropes, use Z-shaped and other shaped wires. The types of wire ropes are divided into: ropes for suspension bridges and steel strands for mines, load-bearing ropes for overhead ropeways, traction ropes for transmission devices, ropes for elevators, tethers for tying and towing goods, etc. More and more varieties of wire rope, the structure is more and more complex. In addition to various coated steel wires, stainless steel wires and bimetallic steel wires are also used. In order to ensure the safety and reliability of the wire rope, the wire rope is required to have sufficient strength, good flexibility, tight twisting, compression resistance, wear resistance, corrosion resistance and fatigue resistance, of which strength is the most important..

　large steel wire pipeThe cross-sectional structure includes round strand contact, round strand line contact, round strand surface contact, special-shaped strand, non-rotating single-layer strand, sealing and leveling. The surface contact round strand wire rope is made by using the traction force of the stranding machine to draw the contact strand through a wire drawing die or a roller die. The cross-section of the steel strand before and after deformation through the mold.