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Title:DOLOČITEV RAZPOKLJIVOSTI V HLADNEM PRI SPAJANJU VISOKOTRDNOSTNIH JEKEL
Authors:ID Balon, Matevž (Author)
ID Praunseis, Zdravko (Mentor) More about this mentor... New window
ID Virtič, Peter (Comentor)
Files:.pdf VS_Balon_Matevz_2011.pdf (5,60 MB)
MD5: 960374D71018C8B663C6F345C00C1F04
PID: 20.500.12556/dkum/e3ce406a-d67c-4af6-89fd-691e55f2357f
 
Language:Slovenian
Work type:Bachelor thesis/paper
Organization:FE - Faculty of Energy Technology
Abstract:Podana je problematika varivosti modernih konstrukcijskih jekel z ozirom na fenomene, ki pri varjenju nastopajo. Posebna pozornost je namenjena razpokljivosti v hladnem, vplivu vodika, vrsti varivostnih preizkusov na hladno razpokljivost ter njenem preprečevanju. Na osnovi praktične izvedbe Y–preizkusa je določena temperatura predgrevanja visokotrdnostnega jekla MICRAL 690 debeline 40 mm, pri kateri ne bo prišlo do pojava razpok v hladnem zvarnem spoju. Ugotovljeno je, da lahko z izračuni približno ocenimo temperaturo predgrevanja jekla. Zaradi navedenega je potrebno realno temperaturo predgrevanja jekla določiti z Y–preizkusom.
Keywords:Visokotrdnostno jeklo, varjenje, varivost, varilni preizkusi, razpokljivost v hladnem, Y-preizkus, temperatura predgrevanja
Place of publishing:Krško
Publisher:[M. Balon]
Year of publishing:2011
PID:20.500.12556/DKUM-21026 New window
UDC:621.791:539.219.2(043.2)
COBISS.SI-ID:1024064092 New window
NUK URN:URN:SI:UM:DK:QGLPSODK
Publication date in DKUM:28.10.2011
Views:3372
Downloads:438
Metadata:XML DC-XML DC-RDF
Categories:FE
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Secondary language

Language:English
Title:DETERMINATION OF COLD CRACKING IN HSLA STEEL WELDS
Abstract:The problems of weldability of modern high strenght steels in regard to the phenomenas that appeared during welding is presented. Special attention is intended to cold cracking, influence of hydogen, type of cold cracking welding tests and its prevention. On the base of experimental Y-test execution the preheating temperature of high strength steel MICRAL 690, thickness of 40mm is determined, where the cold cracking of welded joint is not appeared. The steel preheating temperature can be approximately estimated by calculations, thus the determination of experimental steel preheating temperature by Y-test is necessary.
Keywords:High strenght steel, welding, weldability, welding tests, cracking in cold, Y– test, preheating temperature


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