METHOD FOR DETERMINATION OF COATING CONTINUITY OF FLATS WHEN DEFORMED Russian patent published in 2017 - IPC G01N15/14 

Abstract RU 2622224 C1

FIELD: metallurgy.

SUBSTANCE: invention can be used to determine the continuity of dielectric or metallic cathode coatings on metal (for example, steel) flats when performing continuous deformation of samples with test coatings, preferably by Erichsen dimpling method. The method includes a procedure of creating a contact of the test coating with a conducting liquid which is pre-filled with an electrolytic cell and which causes an electric current in the presence or occurrence of through defects in the test coating, then simultaneously the metal sample and the test coating are continuously deformed and the continuity control of the test coating, applied thereto, is done. For example, a record is made in an oscillogram trend chart of the current, produced as a result of a potential difference between the test sample and the electrode, embedded in the bottom of the electrolytic cell, and deformation ratio chart (depth of the dimple extruded by a ball) of the test sample, for example, with the help of a light-beam oscillograph.

EFFECT: ensuring the possibility of an operational research of the continuity of protective coatings with the determination of the strength of dielectric coatings and the plasticity of metallic cathode coatings in the process of continuous deformation of metal samples with coatings.

2 cl, 2 ex

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RU 2 622 224 C1

Authors

Tolochek Valerij Nikolaevich

Dates

2017-06-13Published

2016-08-17Filed