IN-SERVICE ABRASION RESISTANCE EXAMINATIONS OF METAL SHEET LININGS USED IN THE BUCKET WHEEL FOR THE SRs 1200 WHEEL EXCAVATOR
Journal Title: Tribologia - Year 2011, Vol 238, Issue 4
Abstract
This paper compares the abrasion resistance (values) of metal sheets forming a rotating chute of the bucket wheel in the wheel excavator operating in a brown coal mine. Six different types of metal sheets, including three types of the padded sheets, were examined while mounted on the same bucket wheel. The in-service examinations lasted for 800 hours and were performed in winter. The metal sheet wear was determined by means of the weight and linear methods measuring a decrease in the thickness in the selected points according to the marked measuring grid. It allowed a profile of the sheet wear in the crosswise and lengthwise sections to be determined. It was found that the metal sheets padded with powder wires CS 400 and DPIS 91 showed the highest abrasion resistance values. The application of those metal sheets as the rotating chute lining can limit the number of replacements to one or two replacements per year instead of three or four experienced in case of 30G2 steel.<br/><br/>
Authors and Affiliations
Stanisław Nosal, Jacek Hernes
Keywords
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