A NEW METHODOLOGY OF RESEARCHING THE LEVELS OF FORMATION OF WELDING AEROSOLS

Purpose. Development of an innovative method for accelerated assessment of welding aerosol emission levels. Design / methodology / approach. The implementation of this method was carried out using a special computerized installation – the welding aerosol emission analyzer ABA-1, which allows measuring indicators of welding aerosol emission levels during welding and other technologies that are accompanied by the formation of similar disperse systems. This device was used to measure the total electric charge of the aerosol particle flow. The method is based on the statement that the magnitude of the electric charge of the emitted welding aerosol flow is proportional to the intensity of its formation. Conclusions. A fundamentally new method for studying welding aerosol emission levels has been developed, based on measuring the total electric charge of the aerosol particle flow. The conducted studies of the levels of welding aerosols emission using this method showed a high correlation with the results of the application of standard methods. Limitations / consequences of the research. The proposed method can be used to conduct studies of the levels of welding aerosols emission during welding, surfacing, cutting and other related technologies. Practical value. The developed method allows you to obtain the dependences of both individual and all indicators of the level of welding aerosol emissions on the current strength, combined in a single coordinate system. Originality and significance of the results. The advantages of the new method are significant savings in time and material resources required for conducting such studies.