ifting with a large size wire rope rigging

Oil drilling exploration site is extremely harsh working environment, lifting with large-scale wire rope rig is a lifting tool from the oil rig derrick, the base of a special tool, is the oil drilling derrick lifting system in a key component, the overall performance requirements of strict, Especially low-temperature performance requirements more demanding, generally to meet the requirements of -45 ℃.
 The correct production process is the key to ensure product quality. Large-scale wire rope rigging production process is divided into casting the production process and large-size steel wire rope casting process 2 parts. Casting anchor is a machined part, for this can be related to the wire rope casting process worthy of attention.
Large-size wire rope casting method is divided into two kinds: molten metal socket and resin casting socket. Usually using molten metal socket, casting material for the zinc-copper alloy. Molten metal socket process: preparation, into the factory inspection → pre-stretch → strapping → cutting → wear sleeve → scattered → cleaning → positioning → preheating → sealing → casting → cooling → rust treatment → inspection, test.
In addition, lifting with a large size wire rope rigging also in use to be noted:
1, large-size wire rope maintenance
   (1) The three main factors that affect the rigidity of wear are wear, corrosion and damage. Wear and the use of large-scale wire rope, corrosion and time and the environment.
   (2) large-size steel wire rope should maintain a good lubrication.
   (3) the use of large-size wire rope rope should check whether there is broken wire, crushed, excessive corrosion and so on.
   (4) large-size steel wire coated with oil after the anti-waterproof cloth, disk into a roll placed in a dry place, to avoid extrusion, twisting, bending; to avoid contact with acid, alkali, salt or mud and other corrosive substances; Lubricate the wire rope.
2, rigging with a large size wire rope replacement use of any of the following conditions should be replaced wire rope.
   (1) any other form of damage that has occurred, bending, or causing distortion of the wire rope.
   (2) There are 6 or more broken wires in a wire rope.
   (3) There are 3 or more broken wires in a strand of wire rope.
   (4) Lightweight tower of large size wire rope is not allowed to have any wire broken wire.
   (5) open casting anchor with deformation, corrosion, fracture, bending, wear or improper use.
   (6) observe the kink, corrosion, incision, mechanical damage signs.


Pubdate: 05/27/2017  Click: