Detection method of plated layer corrosion rate in steel wire or steel wire rope

Abstract

The invention relates to a detection method of plated layer corrosion rate in a steel wire or a steel wire rope. The method comprises the process steps that: 1, a sample is prepared, wherein a plated steel wire or steel wire rope is cut into N segments; the surfaces are cleaned by using alcohol cotton; and the ends are sequentially sealed by using a solid sealant (AB composite adhesive), such that N samples are prepared; 2, the samples are weighed; 3, a salt spray test is carried out, wherein the weighed samples are subjected to a neutral salt spray test in a salt spray box; 4, the surfaces of the samples are cleaned, wherein the samples after the salt spray test are washed in a container with a prepared chromic acid cleaning agent, such that residual salt and corrosives on the surface of the samples are completely removed; the samples are washed by using water, and are dried; and 5, weighing and calculation are carried out, wherein the dried samples are weighed, and the weights are adopted as after-test weights; and the corrosion rate is calculated according to the weight loss before and after the test. With the method provided by the invention, corrosion-resistant rates of various plated layers can be easily determined, and the service lives of the plated layer samples in the environment can be inferred.

Description

technical field [0001] The invention relates to a detection method for the coating corrosion rate of a steel wire or a steel wire rope, belonging to the technical field of chemical detection. Background technique [0002] Salt spray test is a method for measuring the corrosion resistance of the sample by exposing the sample to an atmosphere containing salt water mist with a certain concentration, acidity and temperature. It is a commonly used method for testing corrosion resistance in surface technology, so salt Fog testing is often used to test and verify the corrosion resistance of steel wire or wire rope coated metals. At present, the industrially advanced countries in the world have their own national standards for salt spray test methods. For steel wire or steel wire rope coated metal, the conventional practice is to observe the corrosion of the surface after the coated metal has been subjected to a salt spray test for a period of time. Most of the standards for the c...

AI Technical Summary

Problems solved by technology

The former test can be used to compare the corrosion resistance of various coatings, but it is difficult to infer the anti-corrosion life of the coating; the latter test can grasp the service life of the coating, but because it is not known when the coating will rust, it is often necessary to check the coating. Observation, the process is complicated and time-consuming