On the Wear of an Alloy Cast Iron Cylinder Liner

抄録

The cylinder liner materials were tested for the reduction of wear in high speed diesel engine. The test cylinder liner containing Mo and Cu was cast by centrifugal casting. Addition of Mo 0.65% and Cu 2.0% was the most suitable, and through this the wear was reduced to 76% of the liner used hitherto. The author made precision measurement of the liner wear in relation to the running kilometers and could make the profile of the liner wear clear that was different from the typical one when chromium plating ring was adopted as the top ring. The author surmises that the structural change of matrix might be effective for improvement of wear resistance and advocate about the liner materials that attention should be taken not only to the properties of casting state but also to the hardenability and other properties at elevated temperature for cylinder wear.