Steel wire rope is an important and commonly used lifting tool, which can withstand large tension and pressure, and is widely used in lifting, transportation and fixation and other fields. However, the wire rope is easy to be damaged and worn in use and management, and it is very important to deal with the problem in time once it is found. This paper will introduce the damage judgment method of steel wire rope in detail.

1、 Common damage forms of wire rope

Common damage forms of wire rope mainly include the following:

1. Cutting and abrasion

The wire rope is made of many filaments, each of which bears a certain tension. Long-term use will lead to the fracture of some filaments, which will lead to the cutting of the wire rope. In addition, the friction and extrusion of steel wire rope for a long time will also lead to surface wear, which will affect the strength and service life.

2. Corrosion

The steel wire rope is prone to corrosion in humid and high temperature environment, especially in the environment with high acidity, the steel wire will gradually corrode, and eventually lead to loosening and breaking.

3. Twist and break

The steel wire rope needs to bear a lot of tension and torque when it is used. Over a long period of time, the deformation or distortion caused by rope rust or other factors will aggravate the tension imbalance between ropes, and then lead to rope fracture.

4. Or end cracking

The end or end of the wire rope is the part fixed on the hook, bearing most of the load of the rope, so it is easy to crack and crack, and eventually lead to rope cutting.

2、 Judge the damage and wear of wire rope

If the wire rope has the above common damage forms, it needs to be judged in time to avoid potential safety hazards. The specific methods are as follows:

1. Check the surface for wear

In daily use, when pulling the wire rope, if the rope surface is found to be worn, rusted and other problems, it needs to stop using immediately. During inspection, it can be observed whether a large number of steel wires are exposed on the surface of the rope. If the steel wires contacting the surface have obvious wear and fall off, it can be judged that there is a problem with this part of the wire rope.

2. Check the crack and bend in the middle of the wire rope

The steel wire rope may be bent and twisted during long time use. If a large range of bending or twisting is found in the middle of the steel wire rope, it indicates that there is a problem in this part of the steel wire rope.

3. Check whether the rope is cracked

The or end of the wire rope is the part fixed on the hook. If there is crack or twist at the or end, it indicates that the or end is not fixed firmly.

4. Check the tensile force under the condition

The tension test is an important method to judge whether the wire rope is worn. The specific method is to observe the tension of the wire rope through the tension measuring device. If the tension decreases significantly, it means that the wire rope has been seriously worn.

5. Observe the color and texture of the wire rope

The wire rope has a fixed pattern of color and texture, that is, the color and texture of each rope are the same. If it is detected that some ropes have changed in color or texture, it indicates that there is a problem with the wire rope in these parts.

3、 Preventive measures for wire rope damage

In order to prevent the wire rope from being damaged, it is more important to strengthen the maintenance and management of the wire rope at ordinary times. Here are some common precautions:

1. Keep dry

The steel wire rope is prone to corrosion in a humid environment. In order to prevent the steel wire rope from getting damp, it can be stored in a ventilated and dry place.

2. Regular inspection

It is very important to regularly check and test whether the wire rope has problems, so that potential problems can be found and handled in time.

3. Prevent twisting and bending

During the use of wire rope, excessive twisting or bending shall be avoided, otherwise the wear degree of wire rope will be increased.

4. Trim the damaged part

If it is found that the wire rope has been damaged, it can be trimmed at the part where it appears and fixed with the wire rope clamp to prevent the collapse of the cotton support.

5. Do not overload

When using lifting tools, the load must be used according to the standard. Do not overload, which will cause unnecessary pressure and damage to the wire rope.

In short, wire rope is a very important lifting tool, which needs to be handled very carefully and carefully. Knowing how to judge and prevent wire rope damage can effectively improve the safety and effectiveness of work.