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.