Ispitivanje zavarenih spojeva računalnom radiografijom

master's thesis

• Title (english): Weld inspection using computed radiography
• Author: Andrija Belošević
• Mentor: Damir Markučič (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2018-01-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Računalna radiografija jedna je od metoda nerazornih ispitivanja koja se često primjenjuje prilikom ispitivanja kvalitete zavarenih spojeva. U teoretskom dijelu rada prikazani su osnovni principi ispitivanja računalnom radiografijom te objašnjeni parametri kvalitete slikovnih zapisa. Cilj eksperimentalnog dijela rada bio je odabrati osnovne parametre ekspozicije te provesti analizu dobivenih slikovnih zapisa prema zahtjevima referentne norme. Izmjereni parametri kvalitete slikovnih zapisa u konačnici su uspoređeni s minimalnim zahtjevima referentne norme. U radu su također uspoređene izmjerene veličine nepravilnosti u zavarenom spoju s obzirom na zahtjeve definirane referentnom normom i za odabranu razinu prihvatljivosti.

Abstract (english)

Computed radiography, as a method of non – destructive testing, is often used as weld quality inspection. Through theoretic part of the thesis, the main principles of computed radiography testing are shown and image quality parameters are explained. The main idea of the practical part of thesis was to determine basic exposition parameters and to analyze obtained images according to technical requirements of the reference standards. Obtained image quality parameters are then compared with minimal reference standards. Measured sizes of imperfections detected in welds are also compared with minimal reference standards for proper acceptance level.

• Keywords: računalna radiografija; nerazorna ispitivanja zavarenih spojeva; kvaliteta slikovnih zapisa; ISO 17636 – 2; razine prihvatljivosti za radiografsko ispitivanje zavarenih spojeva
• Keywords (english): computed radiography; non – destructive testing of welds; image quality; ISO 17636 – 2; acceptance levels for radiographic testing of welds
• Language: croatian
• URN:NBN: urn:nbn:hr:235:759721
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 21:14:28