title: ÐÐµÑÐ°Ð·ÑÑÑÐ°ÑÑÐ¸Ð¹ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ ÑÐ¸Ð½ÐºÐ¾Ð²Ð¾Ð³Ð¾ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ Ð½ÐµÐ¿Ð¾ÑÑÐµÐ´ÑÑÐ²ÐµÐ½Ð½Ð¾ Ð½Ð° ÑÐ¾Ð»ÑÐ³Ð°Ð½Ð³Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Non-destructive testing of zinc coatingdirectly on the roller table
Creators: name: ÐÑÐµÐ½Ð¶Ð¾Ð»Ð¾Ð²Ð°, ÐÐ¹Ð½ÑÑ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð½ÐµÑÐ°Ð·ÑÑÑÐ°ÑÑÐ¸Ð¹ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ
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nondestroductive control
defects
methods
hot digging metal
corrosion
zinc sheet

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description: The subject of the graduate qualification work is: "Non-destructive testing of zinc coatingdirectly on the roller table" This work is devoted to studyingof non-destructive testing methods directly for the final inspection of galvanized zinc sheet, detection of defects leading to delamination zinc. The research set the following goals:1. Studyingof methods of non-destructive testing. 2. Identification of defects and their types. 3. Investigation of a defect in galvanizedzinc sheet atâSeverstalâ, the cause of its occurrence. 4. Studyingand selection of suitable non-destructive testing methods for detecting corrosion foci on a galvanizedzincsheet at the final inspection. As a result of the work, the types of non-destructive testing methods, types of defects and methods of their detection were investigated, hence the choice of non-destructive testing methods. The technology of galvanizing steel at "Severstal", the technology of hot-dip galvanizing of metal, the defect of the galvanized sheet, the reason for the delamination of zinc on the finished sheet have been analyzed. For detecting centersof corrosion under zinc, leading to a product defect -zinc flaking. The proposed methods of non-destructive testing for solving this problem: eddy current method of non-destructive testing, ultrasonic method of non-destructive testing (ultrasonic thickness measurement (resonance and pulse method), thermal method of non-destructive testing.