Inspection standard of wire rope

The inspection standard of wire rope refers to the standards and specifications strictly followed during the inspection of wire rope to ensure that the quality, strength and service life of wire rope meet the requirements. According to different fields of use, inspection can be carried out according to international standards, and relevant inspection standards can be established to meet the requirements of different fields of use. Here are some commonly used inspection standards for steel wire ropes.

1. Enterprise standard

The enterprise standard is a set of inspection standards established according to the actual situation and experience of the steel wire rope manufacturer, which meets the use needs. It is aimed at the type and specification of the steel wire rope, and carries out strict inspection and quality control on the production, quality, safety performance and other aspects of the steel wire rope according to the enterprise's own standard inspection and management.

2. Industry standards

Industry standard is a standard widely used in relevant fields. It is usually formulated for one or more types of steel wire ropes to meet the requirements for use in relevant fields, such as electric power, metallurgy, coal mine, aviation and other fields.

3. International standards

International standards are a set of standards and specifications widely recognized and accepted internationally. They are often formulated by the International Organization for Standardization (ISO) or other international organizations, and can be used as a universal inspection basis. The relevant inspection and quality control standards for steel wire ropes are mostly based on ISO and API standards.

3. Inspection method of wire rope

The inspection methods of wire rope include visual inspection, flaw detection, ultrasonic inspection, magnetic particle inspection, X-ray inspection, magnetostrictive inspection and other inspection methods. The inspection method of wire rope is required to be high, and the inspectors are required to have professional knowledge and skills to ensure that the inspection results of wire rope are accurate and reliable. The following is a brief introduction to several common wire rope detection methods.

1. Visual inspection

The visual inspection of the wire rope is often carried out manually. The usability and safety of the wire rope can be judged by observing the appearance and surface state of the wire rope and checking whether there are defects and deformations. This method has the advantages of low detection cost, simple detection process and timely detection of the surface condition of wire rope, making it one of the most popular methods used in many practices.

2. Flaw detection method

Flaw detection is to control the detection rod to move slowly along the length of the wire rope, and detect whether the internal structure of the wire rope has delamination, pores, cracks and other problems through the flaw detection instrument. Because this method is non-contact and will not damage the wire rope, flaw detection is often used for pre-inspection of the wire rope.

3. Ultrasonic inspection method

Ultrasonic testing is a sophisticated non-destructive testing method. It uses the absorption and propagation speed of sound waves and other properties of materials to detect changes in the interface to determine the internal structure, defects and other problems of wire rope. At present, this method has become one of the main application methods for wire rope inspection. The ultrasonic inspection method is usually used to inspect thicker steel wire rope, which is used in occasions with major safety risks.

4. Magnetostrictive inspection method

Magnetostrictive testing is a nondestructive testing method based on magnetostrictive effect testing, which is mainly used to inspect the internal cracks, cracks and other internal structural changes of wire rope. This method requires certain equipment and is usually used for emergency inspection of wire ropes.

5. Other inspection methods

There are also some detection and inspection methods, such as X-ray inspection, magnetic particle inspection, etc. Different inspection methods are applicable to different occasions, and usually combined to obtain more accurate, reliable and comprehensive detection results.

Conclusion:

The above is the relevant introduction of the inspection contents and standards of steel wire rope. Steel wire rope is a very important lifting and hoisting object, and scientific and thorough inspection methods should be adopted to check and maintain its safe use, so as to meet the requirements of various fields for the strength and stability of steel wire rope. In the process of use, the maintenance of steel wire rope should be strengthened, and the damaged and expired steel wire rope should be repaired or replaced in time according to the relevant inspection requirements to ensure the safety and efficiency of use to the greatest extent.