Steel wire rope is the mechanical properties and geometric size in accordance with the requirements of the steel wire twisted together in accordance with certain rules of spiral wire bundle, wire rope by steel wire, rope core and grease composition. Steel wire rope is first by the multi-layer steel wire twist into strands, and then the core as the center, by a certain number of strands twisted around into a spiral rope. In the material handling machinery, for lifting, traction, tensioning and load-bearing purposes. Steel wire rope’s high strength, light weight, smooth work, not easy to suddenly break the whole, reliable work.

Wire rope testing

Classification introduction

According to the material classification

1 carbon steel wire rope, with high quality carbon structural steel wire as raw materials twisted.

2. Stainless steel wire rope, made of stainless steel wire as raw material twisted.

Wire rope testing

According to the surface state classification

1 Phosphate coated steel wire rope, referred to as phosphate wire rope, rope steel wire phosphate film film weight 3-60 grams / square meter, phosphate twisting system before the wire is not cold-drawn processing, direct twisting system strand rope, steel core and wire rope, phosphate film can improve the rope surface wear resistance, corrosion resistance, and effectively inhibit the occurrence of micro-motion fatigue.

2. Galvanized steel wire rope, including hot-dip galvanized and electro-galvanized two methods, galvanized layer of steel wire protection belongs to the anodic protection, the thicker the galvanized layer of corrosion prevention ability is stronger.

3 Plastic coated wire rope, in the wire rope or strand rope outer surface coated with a certain thickness of plastic, including polyethylene, polypropylene, polyurethane, etc.

4. Glossy wire rope, after heat treatment and surface preparation of the raw material cold-drawn to get the rope wire.

According to the wire rope twisting method classification

Single strand rope, double twist rope, three twist rope

According to the strand rope internal wire contact state classification

① Point contact wire rope ② Wire contact wire rope ③ Compaction class wire rope ④ Sealing wire rope

Wire rope testing

What are the wire rope test items

Conventional testing items: chemical composition, repeated bending, tensile strength, elastic elongation, breaking tension, fatigue test, deformation test, etc.

Mechanical properties: tensile, impact, bending, fatigue, breaking, etc.

Chemical composition analysis: C, Si, Mn, P, S, Cr, Ni, Cu, etc.

Corrosion performance: salt spray corrosion, etc.

Coating layer performance: coating quality, adhesion, coating layer thickness, corrosion resistance, etc.

External dimensions: diameter, length, twist moment, out-of-roundness, aspect ratio, etc.

Failure analysis: fracture analysis, corrosion analysis, etc.