Primjena sustava za demagnetizaciju u zavarivanju

master's thesis

• Title (english): Application of demagnetization systems in welding
• Author: Martin Vrbanc
• Mentor: Ivica Garašić (mentor)
• Committee member: Danko Brezak (predsjednik povjerenstva)
• Committee member: Ivica Garašić (član povjerenstva)
• Committee member: Gorana Baršić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-01-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Diplomski rad podijeljen je u dva dijela, teorijski i eksperimentalni.
Tema je analiza specifične pojave koja nastaje prilikom zavarivanja i plazma rezanja feromagnetnih materijala – magnetskog puhanja električnog luka.
U teorijskom dijelu opisane su karakteristike električnog luka te sile koje u njemu nastaju, potom je analizirana fizikalna pozadina magnetskog puhanja električnog luka, te potom načini njegovog sprječavanja te uklanjanja.
U eksperimentalnom dijelu rada proveden je postupak magnetizacije radnog komada, u svrhu promatranja utjcaja magnetskog polja na puhanje luka prilikom navarivanja. Potom je obavljena demagnetizacija radnog komada na dva načina prvo prije navarivanja , a potom i za vrijeme samog procesa navarivanja te su zabilježeni i analizirani rezultati.

Abstract (english)

This diploma thesis is divided into two parts, theoretical and experimental. The topic is the analysis of the specific phenomenon that occurs during welding and plasma cutting of ferromagnetic materials - magnetic blowing of electric arc. The theoretical part describes the characteristics of the electric arc and the forces that arise in it, the physical background of the magnetic blowing of the electric arc is analyzed, and the ways of its prevention and removal. In the experimental part of the work, a workpiece magnetization procedure was performed to observe the influence of the magnetic field on the arc blowing during welding. The workpiece was demagnetized in two ways, first before welding and during the welding process itself, and the results were recorded and analyzed.

• Keywords: električni luk; magnetsko puhanje; zavarivanje; magnetsko polje; demagnetizacija
• Keywords (english): electric arc; magnetic blowing; welding; magnetic field; demagnetization
• Language: croatian
• URN:NBN: urn:nbn:hr:235:775387
• 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: 2020-01-20 10:28:01