engleski

Testing of the ploughshares wear during ploughing

During ploughing the soil particles wear of plougshares plough by abrasion. Standard and welded plougshares were tested. The standard ploughshares are made of manganese steel 50Mn7. The welded ploughshares are made by applying a C-Cr-Co-Ni-Si additional material on the general structural steel S355JO. Ploughing is done using a plough roller machine, on soils silty loam to silty clay texture. Ploughing is done in a period of 120, 240 and 360 hours. Each of ploughshare is ploughing 60, 120 and 180 hours. Ploughshares wear followed by the controlled mass loss and change in dimensions. After 180 hours the average weight loss of welded ploughshares was 25, 06 %. In the same time of ploughing the average weight loss of standard ploughshares was 26, 29 %. Based on these preliminary results of research it was concluded that the welding layer which containing Cr carbides can affect the extension of the life of ploughshares.

ploughshares ; protective layer ; ploughing ; wear

nije evidentirano