International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

In the production of oil in the oil mill parts of the equipment wear due to contact with seeds which contain microabrasive particles. This wear manifests itself by changing the dimensions and geometry of the screw press. The paper analyzes the influence of tribocorrosive wear on the workpieces of the screw press. The appearance of wear is most likely due to the action of aggressive media, in this case the oilseeds. In the experimental part of this paper, on samples made of cast steel and austenistic stainless steel, following laboratory tests were performed: electrochemical testing, testing of chemical composition of the base material, wear analysis, microstructure recording and hardness testing. Based on the laboratory testing, conclusion was that the austenistic stainless steels 304L and 316L with nitrated surfaces exhibit better resistance to tribo-corrosion wear in relation to cast steel GS-42CrMo4.

Researchs of the influence of the soil particles were perfomed on the powder loamy soil to powder clay texture. Standard and welded ploughshares were tested. The standard ploughshares are made of steel 50Mn7. The welded ploughshares are made by applying C-Cr-

Co-Ni-Si additional material on the steel 50Mn7. The ploughshares are tested on the plough roller machine. Researches were perfomed in periods of 120, 240 and 360 hours of ploughing, or 60, 120 and 180 work hours of each ploughshare. After 180 hours of work at least average reduction of the ploughshares lenght was at welded ploughshares and it amounted to 8,27 % of the initial length. At the same time reduced the average length of the top of the ploughshares with standard ploughshares amounted to 19,65 % of the initial length. It was concluded that the application of welded ploughshares can contribute to increased of the productivity.

Researchs of the influence of the soil particles were perfomed on the powder loamy soil to powder clay texture. Standard and welded ploughshares were tested. The standard ploughshares are made of steel 50Mn7. The welded ploughshares are made by applying C-Cr-Co-Ni-Si additional material on the steel 50Mn7. The ploughshares are tested on the plough roller machine. Researches were perfomed in periods of 120, 240 and 360 hours of ploughing, or 60, 120 and 180 work hours of each ploughshare. After 180 hours of work at least average reduction of the ploughshares lenght was at welded ploughshares and it amounted to 8,27 % of the initial length. At the same time reduced the average length of the top of the ploughshares with standard ploughshares amounted to 19,65 % of the initial length. It was concluded that the application of welded ploughshares can contribute to increased of the productivity.