1. According to structure:
(1) Single-twist (strand) steel wire rope:
1. Ordinary single-strand steel wire rope: composed of one or more layers A steel wire rope made of round steel wires spirally wound around a core wire;
2. Semi-sealed steel wire rope: one or more layers of round steel wires are spirally wound around the central steel wire, and the outer layer is made of A steel wire rope made of special-shaped wires and round wires twisted alternately;
3. Sealed wire rope: one or more layers of round steel wires are spirally wound around the central wire, and one or more layers of special-shaped wires are wrapped around the outside. Steel wire rope made of twisted steel wires
(2) Double-twisted (multi-stranded) steel wire rope: a single-layer multi-stranded steel wire rope made of one or more layers of strands twisted in a spiral around a rope core Or multi-stranded steel wire rope
(3) Three-twisted steel wire rope (steel cable): A steel wire rope made of multiple multi-stranded steel wire ropes twisted around a fiber core or steel rope core
2. Divided by diameter:
(1) Fine diameter steel wire rope, that is, steel wire rope with diameter lt; 8mm
(2) Ordinary diameter steel wire rope, that is, steel wire rope with diameter ≥8~60mm
(3) Thick-diameter steel wire rope, that is, steel wire rope with diameter gt; 60mm
3. According to use:
(1) General-purpose steel wire rope (including steel Stranded wire) (2) Wire rope for elevators (3) Wire rope for aviation (4) Wire rope for deep well drilling equipment (5) Wire rope for aerial ropeways and cable cars (6) Wire rope for lifting (7) Steel strand for prestressed concrete (8) ) Steel wire rope for fishing (9) Steel wire rope for mine hoisting (10) Steel cord for tires (11) Steel wire rope for adhesive tape
4. According to surface condition:
(1) Light Surface steel wire rope (2) Galvanized steel wire rope (3) Plastic-coated steel wire rope
5. According to the cross-sectional shape of the strand: (1) Round strand steel wire rope (2) Special-shaped strand steel wire rope
6. Press twisting characteristics: (1) Point contact wire rope (2) Line contact wire rope (3) Surface contact wire rope
7. Press twist Methods are divided into four types: right alternating twist, left alternating twist, right twist in the same direction and left twist in the same direction
8. According to the rope core: (1) Fiber core - natural fibers (such as sisal, Made of cotton yarn), synthetic fibers and other fibers that meet performance requirements (2) Steel core (also known as metal core) - divided into independent steel wire rope core and steel wire strand core.
Steel wire rope is a lifting and transportation material. It refers to a flexible rope twisted with multiple or multiple strands of fine steel wire. The steel wire rope is made of multiple layers of steel wires twisted into strands, and then centered on the rope core. A certain number of strands are twisted into a spiral rope. In material handling machinery, it is used for lifting, pulling, tightening and carrying. The steel wire rope has high strength, light weight, stable operation, not easy to break suddenly, and reliable operation.
1. Phosphated coated steel wire rope (Chinese patent), referred to as phosphated steel wire rope. The weight of the phosphated film on the rope-making steel wire is 3-60 grams/square meter. After phosphating, the steel wire is not cold drawn before twisting. Processing and direct twisting of strand ropes, steel cores and steel wire ropes, the phosphate coating can improve the wear resistance and corrosion resistance of the rope-making steel wire surface, and effectively inhibit the occurrence of fretting fatigue. For the phosphating treatment of rope-making steel wires, manganese or zinc-manganese phosphating is preferred. No drawing processing is performed after the phosphating of the steel wires. The phosphated steel wires are used directly to twist the steel wire ropes. The phosphating coating makes the surface of the steel wire more wear-resistant. Moreover, the phosphate film is non-conductive and can simultaneously improve the corrosion resistance of the steel wire. The service life of the phosphated steel wire rope is 2-3 times that of the smooth steel wire rope, and the fatigue resistance of the steel wire rope is greatly improved. [1] Phosphated steel wire rope is not only an ideal substitute for smooth steel wire rope, but also fully capable of replacing imported steel wire ropes [2-3].
2. Galvanized steel wire rope, including hot-dip galvanizing and electro-galvanizing. The protection of the steel wire by the galvanized layer is anode protection. The thicker the galvanized layer, the stronger the anti-corrosion ability
3. Plastic-coated steel wire rope, the outer surface of the steel wire rope or the outer surface of the strand is coated with a certain thickness of plastic, including polyethylene, polypropylene, polyurethane, etc.
4. Smooth steel wire rope, which has been heat treated and surface The rope-making steel wire is obtained after cold drawing of the prepared raw materials (note: the phosphate film formed during the pretreatment process gradually falls off due to intense friction with the drawing die during the cold drawing process). The steel wire does not undergo any surface treatment and is directly twisted into a strand rope. Steel core and steel wire rope were produced abroad in 1834 and domestically in 1939 by Tianjin No. 1 Steel Wire Rope Factory