How To Choose The Wire Rope Of Metallurgical Crane

How to choose the wire rope of metallurgical crane

 

Steel wire rope is the most widely used flexible member on cranes. It has the characteristics of light weight, good flexibility, wear resistance, ability to withstand impact loads, no noise during high-speed operation, and a warning of wire breakage before breaking.

 

However, lifting wire ropes are frequently used in various workplaces, which are prone to wear, high temperature baking, corrosion, etc., especially in places with poor working environments such as metallurgy, casting, garbage, and oceans. If the selection, maintenance, maintenance and use of wire ropes are improper , prone to wire rope breakage, resulting in fatal accidents or major dangers.

 

So it is very important to choose the right wire rope for different cranes (for example: 10 ton bridge crane, 100 ton bridge crane, 50 ton gantry crane, etc.).

 

After years of practice, it has been proved that the sudden breakage of new steel wire ropes and steel wire ropes in a normal state is extremely rare.

The main reason for the damage of the steel wire rope is that the outer steel wire is gradually broken due to wear, fatigue or severe deformation during long-term use.

 

As the number of breaks increases, the speed of breaking shorts also gradually accelerates. When the number of broken wires reaches a certain limit, the actual safety factor will be reduced. If you continue to use it, the whole rope may break.

 

In addition, the illegal operation and unreasonable use of lifting operators, such as frequent overloading, crooked pulling and inclined lifting, etc., will cause the wire rope to break.

 

When choosing the wire rope of the crane, the user should choose the most suitable wire rope according to the environment and occasion of use and the heavy degree of operation.

 

1. In order to ensure the service life of the wire rope, the safety factor and tensile strength of the wire rope should be correctly selected according to the working level and use of the mechanism.

 

2. According to the classification of steel wire toughness level, the steel wire used for cranes is grade 1, and the steel wire used for ropes and tension ropes is grade 2.

 

3. Asbestos-core and metal-core steel wire ropes are suitable for steel wire ropes used in high-temperature environments; galvanized steel wire ropes should be used in open-air, humid, and corrosive environments.

 

4. Wire ropes wound on pulleys and drums should preferably be line-contact wire ropes.

 

5. In order to make the hoisting work stable and avoid spinning, alternate twisted wire ropes are generally used.