Emisije delcev prahu nastalih pri varjenju nerjavnega jekla

Petić, Nenad (author), Kosec, Borut (mentor), Ilić Mičunović, Milana (co-mentor)

Pri varjenju se sproščajo dimni plini, ki škodljivo vplivajo na zdravje delavcev. Dimni plini so različne mešanice plinov in drobnih delcev, ki pri vdihavanju ali zaužitju predstavljajo tveganje za zdravje delavcev. Stopnja tveganja je odvisna od sestave in koncentracije delcev prahu ter trajanja izpostavljenosti. Sestava je odvisna od osnovnega materiala, varilnega postopka in dodajnega materiala. V okviru diplomskega dela so izvedene meritve emisij delcev prahu pri ročno obločnem varjenju nerjavnega jekla z oziroma brez uporabe odsesovalne naprave. Vzorčenje je bilo izvedeno z uporabo osebnega merilnika za vzorčenje EGO PLUS TT. Sestava in geometrija delcev prahu zbranih na filtrih sta bili analizirani v skladu s standardom ISO 13322 z uporabo vrstičnega elektronskega mikroskopa.

• Language: Slovenian
• Keywords: delec prahu, emisije, nerjavno jeklo, ročno obločno varjenje, vrstični elektronski mikroskop (SEM), analiza delcev prahu
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2019
• PID: 20.500.12556/RUL-108760
• COBISS.SI-ID: 1818463
• Publication date in RUL: 20.07.2019

Secondary language

• Language: English
• Title: Emissions of the dust particles arrised at non-ferrous steel welding

Abstract

During welding procedures a lot of gases are emitted into the air, which can damage the health of the workers. Gases have different compositions and contain dust particles, which can provoke certain risks when inhaled by the workers. The degree of risk depends on the composition, concentration and time exposed to the harmful gases. Composition of gases depends on usage of different welding procedures, basic material and electrode. The idea of diploma work was to measure the emission of dust particles during manual arc welding of stainless steel with the usage and without the usage of ventilation device. Filtration of dust particles was conducted by EGO PLUS TT device. Composition and geometry of dust particles were examined according to the standard ISO 13322 using scanning electron microscope.

• Keywords: dust particle, emission, stainless steel, manual arc welding, scanning electron microscope (SEM), analysis of dust particles