20.500.12556/RUL-164805 Razvoj postopka rotacijskega varjenja cevi večjega premera Development of a rotary welding process for large diameter pipes Pri varjenju procesnih cevovodov je potrebno zagotoviti specifične lastnosti zvarnih spojev, tako da njihova notranjost ne predstavlja površine, ki bi spodbujala rast mikroorganizmov ter posledično kontaminacije celotnega sistema. S tem namenom se za tovrstna varjenja zahteva uporaba mehaniziranega oz. orbitalnega varjenja. Za namene raziskave je varjenje potekalo na rotacijsko varilni napravi RSWM 65/4 za varjenje cevi večjega premera. V diplomskem delu je predstavljena tehnika mehaniziranega varjenja in lastnosti uporabljenih materialov, kakovostne zahteve za zvare v procesnih postrojenjih ter zahteve za odobritev varilnega postopka. V metodologiji raziskave je predstavljeno eksperimentalno varjenje ter preizkusi za izvedbo odobritve varilnega postopka po standardu SIST EN ISO 15614-1:2017/A1:2020 in stopnji 2. Ugotovili smo, da z varilno napravo in razvito tehnologijo varjenja dosegamo ponovljive kakovostne zvare pri cevovodih premera nad 150 mm in debeline, večje od 2 mm. When welding process pipelines, it is necessary to ensure that the welded joints have specific properties so that their interior does not provide a surface that would encourage the growth of micro-organisms and consequent contamination of the whole system. To this end, the use of mechanised or orbital welding is required for this type of welding. For the purposes of the study, welding was carried out on an RSWM 65/4 rotary welding machine for welding larger diameter pipes. The thesis presents the mechanised welding technique and the properties of the materials used, the quality requirements for the welds in the process plant and the requirements for the approval of the welding process. The methodology of the research presents experimental welding and tests for welding procedure approval according to SIST EN ISO 15614-1:2017/A1:2020 and level 2. We found that the welding machine and the developed welding technology achieve reproducible quality welds for pipelines with diameters greater than 150 mm and thicknesses greater than 2 mm. varjenje TIG varjenje cevovodov nerjavno jeklo avtomatizacija kvalifikacija varilnega postopka TIG welding pipeline welding stainless steel automation welding procedure qualification record true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-11-13 07:30:19 2024-11-13 07:30:25 2025-01-22 13:40:22 0000-00-00 00:00:00 2024 0 0 XXII, 70 str. 2024 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791.75:669.14.018.62(043.2) 270142 223496963 38326.pdf 38326.pdf 1 246DB9E279D3A30020E17B1C080BA2BB 544155324cf8099f6f9fdd8c57c1e982bb08feacc1b81163e7224c03496f9dbb 674983fe-a188-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195528 Fakulteta za strojništvo 0 0 0