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Extensibility of Steel wire rope

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Even the best quality 316 stainless steel wire rope has a limited service life. How to effectively extend the annoying service life of quality 316 stainless steel wire rope is what many friends want to know. You can read the following carefully to understand this in detail.
Cheapest 316 stainless steel wire rope should avoid friction with other objects outside the mismatched wheel groove when running at high speed. Because at high speed, the instantaneous frictional heat between the wire rope and these objects may cause the martensitic structure to appear on the surface of the wire.
The new wholesale 316 stainless steel wire rope should not be used immediately under high-speed and heavy-load conditions, but should be run for a period of time under low-speed and medium-load conditions, so that the new wire rope is first adapted to the state of use, and then gradually increase the running speed of the wire rope to increase the load.
Customized 316 stainless steel wire rope is one of the steel wire products. What is the use of this product? The following is a brief exposition of this issue.
316 stainless steel wire rope has many characteristics such as high temperature resistance, good fatigue resistance, excellent breaking force, long service life, durability, etc. 316 stainless steel wire rope is widely used in coal, petroleum, metallurgy, chemical industry, ships, bridges, electricity, rubber, military, Tourism, water conservancy, light industry and other industries, the products can be produced according to ISO, BS, DIN, JIS, ABS, LR and other international and foreign advanced standards.
Steel wire of good price and quality nylon coated wire rope: The steel wire material includes carbon steel or alloy steel, which is made by cold drawing or cold rolling, and the cross section of the steel wire is round or special. The special-shaped cross-section steel wire is mainly used in the production of sealing wire rope, and has high tensile strength and toughness.

Extensibility of Steel wire rope

  • Classification:Industry news
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  • Release time:2021-02-05
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(Summary description)The wear resistance and fatigue resistance of a wire rope are a pair of characteristics that affect each other, and the main influencing factor is the outer wire of Steel wire rope. For steel wire ropes of the same diameter

Extensibility of Steel wire rope

(Summary description)The wear resistance and fatigue resistance of a wire rope are a pair of characteristics that affect each other, and the main influencing factor is the outer wire of Steel wire rope. For steel wire ropes of the same diameter

  • Classification:Industry news
  • Author:
  • Origin:
  • Release time:2021-02-05
  • Views:0
Information

The wear resistance and fatigue resistance of a wire rope are a pair of characteristics that affect each other, and the main influencing factor is the outer wire of Steel wire rope. For steel wire ropes of the same diameter, same strength, and same number of strands, the more the number of outer wires, the smaller the diameter of the outer wires, which means that Steel wire rope has poor wear resistance and better fatigue resistance and vice versa . Therefore, in the selection of Steel wire rope, the wear resistance and fatigue resistance of Steel wire rope should be comprehensively considered to meet the use requirements of Steel wire rope as much as possible.

Extensibility of Steel wire rope
The elongation of Steel wire rope: When Steel wire rope is subjected to a tensile load, it will stretch in different stages. Before Steel wire rope is used, pre-tensioning Steel wire rope is the only way to eliminate its structural elongation.
There are many factors that can cause Steel wire rope to elongate during use, and some factors cause the elongation to be negligible. The main reasons that usually lead to the elongation of Steel wire rope are as follows, of which the first two are the most important factors.
Structural elongation The elongation caused by the adjustment of the position of the steel wire in each strand and the strands in Steel wire rope; the elongation caused by the free rotation of one end of Steel wire rope and the increase of the lay length; the metal area of ​​Steel wire rope is reduced due to the wear of the internal wire The further elongation caused by small, the above-mentioned elongation is collectively referred to as structural elongation.
Elastic elongation The elongation in the elastic range of the material due to tensile load.
Plastic elongation The permanent inelastic elongation caused by the load exceeding the yield point of the material.
The elongation or shortening of temperature due to temperature changes.
The role of wire rope pre-tensioning:
1. When Steel wire rope is pre-tensioned, it can basically eliminate the elongation caused by the position adjustment of the steel wire in the strand and the position of each strand in Steel wire rope. The method is to apply a certain load and repeatedly stretch until the structural elongation of Steel wire rope is eliminated;
2. Elimination of twisting stress: the steel wire rope strands and the steel wires in the strands will have a certain residual stress after twisting. Through pre-tensioning, the twisting stress can be eliminated to a large extent;
3. Make the strands and steel wires evenly stressed: Due to the unevenness of the twisting, the strands or steel wires of the steel wire rope receive uneven forces when they are loaded. Pre-tensioning can make the force uniform;
4. Improve fatigue life: Due to the elimination of twisting stress and uniform force, the fatigue life of steel wire rope can be improved to a certain extent.
The above is the extensibility of Steel wire rope, I hope it will be helpful to everyone.

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