What to do if the stainless steel wire rope deforms

After long-term use, stainless steel wire ropes may deform due to work load or lack of timely maintenance and care. So, what kind of steel wire rope is deformed and damaged? How should we judge?

1. The wavy deformation of a steel wire rope is caused by the longitudinal axis of the rope forming a spiral shape. This deformation may not necessarily result in any loss of strength, but if the deformation is severe, it can cause bouncing and irregular transmission. Over time, it can cause wear and wire breakage. When a wavy shape appears, within the range of a wire rope length not exceeding 25d, if d1 ≥ 4d/3, the wire rope should be scrapped.

2. When the outer rope strand becomes detached or becomes longer than the inner rope strand, this deformation occurs, and the cage shaped distorted steel wire rope should be immediately scrapped.

3. The extrusion of the rope strand indicates that the steel wire rope is unbalanced, and the steel wire rope extruded from the rope strand should be immediately scrapped. This deformation is caused by a part of the steel wire or steel wire bundle arching on the side of the steel wire rope against the pulley groove, forming a ring. This deformation is often caused by impact load. If this deformation is severe, the steel wire rope should be scrapped.

4. The diameter of the steel wire rope may increase locally and can affect a considerable length of the steel wire rope. The increase in rope diameter is usually related to the distortion of the rope core, and the inevitable result is the imbalance of the outer rope strands, resulting in incorrect positioning.

5. Steel wire ropes with locally increased rope diameter should be scrapped. Twisting is a deformation caused by the tension of a steel wire rope in a circular shape that cannot rotate around its axis. The result is uneven lay, causing extra wear and tear. In severe cases, the steel wire rope will twist, leaving only a small portion of its strength.

6. Seriously twisted steel wire ropes should be immediately scrapped. The local reduction in the diameter of a steel wire rope is often related to the fracture of the rope core, and special attention should be paid to inspecting the end of the rope for such deformation.

7. Steel wire ropes with locally significantly reduced rope diameter should be scrapped. The flattening of the steel wire rope is caused by mechanical accidents, and in severe cases, the steel wire rope should be scrapped.

8. Bending is the angular deformation caused by external influence on a steel wire rope, and such deformed steel wire rope should be immediately scrapped. When a steel wire rope is damaged due to the action of heat or electric arc and undergoes the action of special heat, and its appearance shows recognizable colors, the steel wire rope should be scrapped.

By mastering the above behaviors, everyone can pay attention to and timely detect deformation phenomena in daily operations, achieve timely repair and replacement, avoid safety accidents caused by wire rope damage, and add security to work safety.