How to deal with elevator wire rope rust, why elevator wire rope rusts, and how to solve it

The ordinary elevator wire rope is a smooth wire rope, that is, the rope wire is directly twisted without any treatment after the rope wire is drawn, and the steel material undergoes oxidation reaction with oxygen.

It is the process of rusting, especially in the high temperature and humidity of southern China, and the wire rope is very easy to rust.

Phosphate-coated elevator rope, rope-making steel wire is phosphated by manganese.

For a long time, apply wire rope oil.

After the elevator wire rope is used, it will first be worn, and the surface of the abrasive debris and the wire surface are prone to oxidation and rust, resulting in brown-red rust, and then gradually produce fatigue broken wires, some broken wires are produced by abrasion, such as the eccentric wear phenomenon caused by the installation of the wire rope is not in place.

The longest fatigue life is the main basis for judging the advancement of wire rope manufacturing technology. The fatigue life of the wire rope can be verified and compared through the fatigue test, and the purchase of a structural elevator wire rope from multiple manufacturers, such as 8 19S + NF - 13mm, in the same fatigue testing machine test to the first broken strand, the longest fatigue life is the longest service life of the wire rope, and the fatigue test can test the comprehensive quality of the wire rope. The service life of the wire rope is proportional to the fatigue life.

The patented technology of phosphate coated wire rope is the most advanced technology in the field of steel wire rope in the world, and the fatigue life of manganese phosphate coated wire rope is 3-4 times that of the same structure smooth wire rope, which can be verified and compared through fatigue test. At present, there is no fatigue life of the same structure wire rope that can exceed the fatigue life of phosphate coated wire rope, so the patented technology of phosphate coated wire rope is the most advanced technology, at least it is the most advanced technology in the field of wire rope in the world. Manganese phosphating coating can improve the wear resistance and corrosion resistance of the surface of the steel gear of the automobile gearbox, the wire rope is also the use of this principle to extend the service life, the use of this technology to produce the phosphate coating elevator wire rope fully meets the requirements of all the technical indicators of the GB8903-2005 elevator wire rope national standard.

The service life is longer, the unit cost is lower, and the safety and quality stability of use are higher. Phosphate-coated elevator wire rope is used in high temperature and humidity environment, and its high corrosion resistance will have the advantage of being very obvious.

Traction elevator, relying on the friction of the traction wheel groove and the wire rope to drive the elevator up and down, the effect of friction will produce wear, wear and tear at the same time will also occur oxidation and corrosion, the wire rope must be the more wear-resistant, the better the corrosion resistance, the smooth elevator wire rope is easy to wear and tear and easy to break the wire to reduce the service life, wear and rust is the main reason for the failure of the wire rope. At present, the corrosion resistance and wear resistance is the manganese phosphate coating elevator wire rope, the phosphate coating can improve the wear resistance and corrosion resistance of the steel wire surface, inhibit the fretting fatigue, inhibit the occurrence of fretting fatigue, and greatly improve the service life.

The elevator wire rope is made of cold-drawn steel wire, and if it is used for a long time, it will be worn and corroded, so the wire rope will be oiled and maintained after a period of use, if the wire rope has a large amount of red rust and iron oxide.

A new rope needs to be replaced immediately to ensure the safety of the elevator use.

The main varieties of wire rope are phosphated.

Coated wire ropes, galvanized steel wire ropes and stainless steel wire ropes.

The cause of wire rope failure is fretting fatigue, manganese phosphating and zinc-manganese phosphating are wear-resistant phosphating, which can improve the wear resistance and corrosion resistance of the steel wire surface, and is not easy to wear and rust so that its fatigue life is three times that of the smooth wire rope, and the highest test has reached four times, which can be verified by fatigue test, far more than the imported wire rope, the use cost is lower, and the cost is higher.

Elevator wire rope, whether it needs to be replaced, need to check the wear, rust and broken wire of the wire rope, in line with the scrapping standards stipulated in the national standards, it is necessary to replace the elevator wire rope to ensure the safe operation of the elevator. If it is an ordinary rust that is lighter than the trouser hall, it can continue to be used as long as it is lubricated, and if the elevator wire rope is more seriously corroded, the elevator wire rope needs to be replaced, which needs to be judged by people with work experience.

The upgraded product of the smooth elevator wire rope is the manganese phosphate wear-resistant coating elevator wire rope, the surface of the steel wire is 15-30 grams of manganese phosphating phosphating film, which is wear-resistant and corrosion-resistant.

Elevator, there should be a maintenance company responsible for inspection and maintenance, smooth elevator wire rope should be regularly oiled maintenance, smooth elevator wire rope is relatively easy to rust, smooth elevator wire rope is seriously rusty, is the elevator maintenance company service is not in place buried, if the smooth elevator wire rope corrosion refers to serious liquid rolling, need to replace the new elevator wire rope to ensure safe operation. Manganese phosphating resistant only residual grinding coating elevator wire rope, wear resistance, corrosion resistance and longer fatigue life, the surface of the steel wire has 15-30 grams of manganese phosphating wear-resistant protective coating, maintenance is simpler.

Manganese phosphating coating elevator wire rope, phosphating coating can not only slow down the occurrence of wear, but also inhibit oxidation and corrosion, and the fatigue life is three times that of the pure smooth wire rope, especially suitable for use in coastal high temperature and humid environments.

Commonly used wire rope varieties are phosphate-coated wire rope, galvanized wire rope, stainless steel wire rope or plastic-coated wire rope, used in atmospheric environment, the manganese phosphate coated wire rope produced by patented technology has the most long service life, and the hot-dip galvanized-phosphating double-coated wire rope is preferred in heavy corrosion environment.

The phosphate coated wire rope produced by the patented technology gives priority to the use of manganese or zinc-manganese phosphating, compared with the smooth wire rope production process, only the final wear-resistant phosphating treatment process is added, and the wear resistance and corrosion resistance of the rope wire are greatly improved. At present, the fatigue test data shows that the fatigue life of the phosphate coated wire rope is about 3 times that of the smooth wire rope of the same structure (under comparable conditions in the laboratory), and there is a possibility of significant improvement with the study of the wear-resistant phosphate formula. Manganese phosphating is wear-resistant phosphating, which can solve the problem of wear and tear in the use of wire rope, smooth wire rope is being eliminated, because phosphating coated wire rope is in short supply, it is currently more popular, and the purchase of phosphating coated wire rope ** is higher than that of smooth wire rope, but the unit cost is lower than that of smooth wire rope.

The current test data proves that the fatigue life of phosphate coated wire rope is three times that of smooth wire rope, and the service life of wire rope is proportional to the fatigue life.

The main raw material of wire rope is steel wire, high temperature and humid environment is conducive to the occurrence of corrosion, including elevator wire rope is easy to corrode, this problem is very prominent in China's southeast coastal areas, such as Guangzhou or Hainan Island area. The method of preventing the corrosion of the wire rope, while strengthening the maintenance of the oiling, you can choose the varieties of the wire rope with anti-rust ability, such as the manganese phosphate coated elevator wire rope, which is not only corrosion-resistant, but also wear-resistant, and has a long service life. The phosphating film cannot conduct electricity, which can prevent the formation of microbatteries, thus playing a role in rust prevention.

The phosphate coated wire rope produced by the patented technology gives priority to the use of manganese or zinc-manganese phosphating, compared with the smooth wire rope production process, only the final wear-resistant phosphating treatment process is added, and the wear resistance and corrosion resistance of the rope wire are greatly improved, and the phosphated steel wire is used to directly twist the wire rope. At present, the fatigue test data show that the fatigue life of phosphate-coated wire rope is about 3-4 times that of the same structure smooth wire rope (under comparable conditions in the laboratory). Manganese phosphating is wear-resistant phosphating, which can solve the problem of wear and tear in the use of wire ropes, and smooth wire ropes are being eliminated, because phosphating coated wire ropes are in short supply, which is currently more sought-after, and it is necessary to ask a few more companies.

Purchasing phosphating coated wire ropes** is higher than smooth wire ropes, but the unit cost of use is lower than that of smooth wire ropes. The current test data proves that the fatigue life of phosphate coated wire rope is 3-4 times that of smooth wire rope, and the service life of wire rope is proportional to the fatigue life.

Kerosene cannot be used.

The varieties of wire ropes produced in China are as follows:

1.Phosphated coated steel wire rope (Chinese patent), the steel wire is phosphated by manganese and zinc-manganese.

The wear resistance and corrosion resistance of the steel wire surface have jumped in an all-round way, and it is not easy to wear and tear and not easy to rust, so that the fatigue life of the wire rope is greatly improved, which is 3 times that of the smooth wire rope of the same structure (under comparable conditions in the laboratory), it can be verified through fatigue test, and it can be fully replaced by all kinds of smooth wire rope, and it can also be used instead of galvanized steel wire rope with a thin zinc layer (it can be used through the salt spray test.

Test the corrosion resistance), the service life is long, the unit cost is lower, and the quality stability is better.

2.Galvanized steel wire ropes, including hot-dip galvanized.

There are two kinds of electro-galvanizing, generally the hot-dip galvanized zinc layer is thick, and the electro-galvanized zinc layer is thin.

3.Stainless steel wire rope, mainly 304 or 316 stainless steel, has excellent anti-corrosion effect but is expensive.

4.Plastic-coated wire rope, based on carbon wire rope, the outer layer is coated with polyethylene.

Polypropylene or nylon.

5.Smooth wire rope, short service life, market demand sharply reduced, will be phosphated coated wire rope completely eliminated.

6.Wire rope for mooring in marine engineering.

7.Cable wire rope.

Lifting machinery used in atmospheric environments.

Manganese phosphating coated wire rope is preferred, hot-dip galvanized-phosphating double-coated wire rope is preferred in heavy corrosive environment, and offshore wire rope is preferred in seawater. Please note that the name of the wire rope must be indicated in the purchase invoice, such as phosphate coated wire rope or 316 stainless steel wire rope, to prevent illegal enterprises from infringing on their legitimate rights and interests.

Spraying marking, the warranty should have the main technical indicators, such as the type of phosphate film and film weight (the size of the phosphate film film, wear resistance, corrosion resistance, etc. have an important impact on the service life of the wire rope), for reference only.