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Analysis of causes and solutions for corrosion of elevator wire rope

[release date: 2020-05-26 clicks: 364 source: Luoyang TST Flaw Detection Technology Co., Ltd. [print this article]   [closing windows] ]
Elevator rope is one of the key components of normal elevator operation. If there is no wire rope elevator, it is impossible to run up and down. The elevator is supported by wire rope and traction machine. If there is no two kinds of things, it will not work properly. Similarly, if there is an accident in the steel wire rope, then the elevator accident will happen, so the quality of wire rope will be asked. The problem is very important, but if the use of wire rope is not good, or improper maintenance, then it will cause defects, which will lead to accidents. The common faults of the elevator wire rope are broken wires and rust. Let's take a look at the causes and solutions of the corrosion of elevator wire rope.

1. Cause of corrosion of elevator wire rope


1, the use of environmental problems

When the use of the environment is relatively humid and dark, it will be more prone to rust, because moist air will react with the material of the wire rope to cause oxidation and rust.

2. Failure is not solved.

If there is a partial or a few broken wires in the wire rope, it will also lead to corrosion. In this case, the damaged area is even more fragile. If it is not handled, it will lead to the contact between the damaged parts and the air, resulting in rust from the reaction.

3, improper maintenance

When the maintenance work is not good, it will cause corrosion. This situation is generally rare, and the probability of occurrence is small, but it can not be excluded.

4, natural aging

When the service life of the wire rope reaches a certain level, it will easily lead to the appearance of aging phenomenon. This is also natural and uncontrollable, so if you have reached a certain life expectancy, you should pay more attention to it.
 Portable wire rope flaw detector

Two. Solution to rust of elevator wire rope.


1. When the elevator wire rope is corroded, it will cause the mechanical properties to decrease, the diameter of the steel wire to become thinner, the looseness between the strands, and even brittle fracture.

2, and this kind of fracture is an avalanche fracture, which is more dangerous than the broken wire or wear. Therefore, whether it is in the inspection or maintenance, it is particularly important to notice the corrosion of wire rope. We should observe carefully. If we find that serious corrosion has formed the pit or the outer layer of rope strands loose, no matter how much the broken wire or rope diameter should be thinned, we should replace it.

3, if a "red oil" appears on the wire rope, it is noted that the rope core is free from oil and rust inside. Attention should be paid to it. If necessary, the internal corrosion of the wire rope can be checked by chopping the rope head.

4. In addition to checking and replacing, wire rope corrosion can also be prevented by coating lubricant on the steel wire so as to prevent rust.

5, the lubrication of the wire rope is to use a bristle brush against the wire rope to run evenly and thin on the surface of the steel wire to apply a special diluted elevator wire rope grease or to use No. 20 motor oil. The advantage of this method is that it is simple and convenient, without heating, and easy to apply.

6, or first wipe the dirt and residue on the rope with a wire brush, and clean it with kerosene (strictly prohibit cleaning with gasoline). Heat the mixture of lubricating oil (graphite and Vaseline) to over 80 C. For wire rope lubrication is moderate, surface can not apply too much oil. Otherwise, the traction force will be reduced, and the load torque can not be balanced in severe cases. The elevator runs out of control, resulting in the accident of the top and bottom of the elevator, and the consequences are more serious.

Therefore, when a wire rope is in trouble, it should be checked first to make sure that the problem is repairable, or that it can not be repaired and need to be replaced. After the judgement is processed, the wire rope should be cleaned before making the lubrication, so that the use of the wire rope can be smoother, and the damage will be reduced. Professional instruments for inspection, generally more common is wire rope flaw detector, can effectively check wire rope broken wire, rust and other faults, simple operation, good detection effect, now widely used.

The above is the cause of the corrosion of the elevator wire rope and the whole content of the solution. In fact, as long as we find problems and solve problems in time, we can avoid accidents to a large extent. Therefore, regular inspection and replacement is very necessary, and we must pay more attention to them. Today, this is the sharing of tweet, so if you have any questions, you can leave a message or telephone consultation.
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