Tian Jin Rong Da Jian Ce You Xian Gong Si

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Enterprise Nature: Private
Operation Mode: Service Suppliers
Location: Nankai District Tianjin City China
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Product Details

Corrosion of steel wire rope

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Yield /年
Place of Production 天津
Product Category 工程监理和第三方检验
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Product Description

Steel wire rope corrosion analysis, steel wire rope rust reason detection, steel wire rust reason detection, the steel wire rope rust analysis, the steel wire rope rust inspection organization
Tianjin Rong Da Testing Co., Ltd. contact: Wang Jingfu
Cell phone: 13102238283 QQ:3144667033
Telephone: 022-23892103
The wire rope is often used in the open air, the rain will be exposed to the weather so that the wire rope gradually began to corrosion, especially the use of wire rope in the harmful gas and bad environment, caused by corrosion damage is more serious. The difference of the oxygen affinity between the surface of the steel wire rope which is damaged by corrosion, makes the surface of a certain local metal become anode, the other nearby local metal becomes cathode, forming a large number of small batteries. And then the wire rope in the role of small batteries, the surface will form a lot of circular corrosion pits, and gradually deepen. These pits became the source of stress concentration and fatigue crack. At the same time, the corrosion makes the area of the steel wire rope gradually smaller, while the elasticity and the ability to withstand the impact of lower. In practice, the influence of corrosion on the mechanical properties of steel wire is much more than that of broken wires and wear. In order to explain the problem, the corrosion degree of the steel wire rope is divided into three grades:
Grade I - rust is mild, steel wire becomes black, there are rust skin or a small amount of fine pitting;
Grade II - rust is heavy, there are thick rust skin, pitting corrosion pit;
III - serious corrosion, pitting into grooves, the outer wire looseness, or even lose the original cross-sectional area of the wire.
The strength loss of the I grade corrosion steel wire rope is below 10%; the level of II corrosion is below 25%; the III grade is more than 25%. Among them, the degree of corrosion is more serious, the more serious wear.
Therefore, it is urgent to prevent the corrosion damage of steel wire rope.