diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo
Joško Andrejčič (Author), Damjan Klobčar (Mentor), Matej Pleterski (Co-mentor)

Abstract

Debelostenske cevi iz nerjavnega jekla se uporabljajo za cevovode v industrijah in panogah za prenose medijev pri ekstremnih pogojih, zato morajo biti kakovostno spojene po določenih zahtevah in standardih. Namen diplomskega dela je bil optimizirati parametre za avtomatizirano varjenje avstenitnih nerjavnih cevi, v kombinaciji varjenja TIG in MIG za potrebe v nuklearnih elektrarnah. V diplomskem delu smo preučili vplive procesnih parametrov na polnjenje zvara pri večvarkovnem varjenju in primerjali čase varjenja pri različno grajenih zvarih. Predstavljeni so rezultati nateznega preizkusa, radiografske analize, makro analize in tudi napake v zvarih, ki so se pojavile v raziskavi. Ugotovili smo, da z avtomatizacijo varjenja cevi dobimo ponovljive kakovostne zvare in skrajšamo čase varjenja tudi do petkrat glede na ročno varjenje cevi.

Keywords

diplomske naloge;varjenje TIG;varjenje MIG;varjenje cevovodov;avtomatizacija;nerjavno jeklo;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [J. Andrejčič]
UDC: 621.791.75:621.643(043.2)
COBISS: 16602115 Link will open in a new window
Views: 950
Downloads: 270
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Other data

Secondary language: English
Secondary title: Automatic TIG and MIG welding of thick-walled stainless-steel pipes
Secondary abstract: Thick wall stainless-steel pipes are used for building pipelines for the transfer of media under extreme conditions, therefore high-quality joints need to be welded to meet the necessary requirements and standards. The purpose of this bachelor thesis was to optimize the parameters for the automatic welding of austenitic stainless tubes, in combination with TIG and MIG welding process for the needs in nuclear power plants. The influence of process parameters on weld filling in multilayer welding was examined and welding times for different welds were compared. The results of tensile test, radiographic analysis, macro analysis and weld defects that appeared are presented. We found out that by automatic welding of pipes we can assure repeatable quality welds and shorten the welding time up to fivefold in comparison to manual welding.
Secondary keywords: TIG welding;MIG welding;pipelines welding;automatization;stainless steel;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XXII, 58 str.
ID: 11519224
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