THE INFLUENCING OF THE SURFACE OF AN IMPE LLER BAR PATTERN BY IMPACT CONTACTING WITH CONCRETE PARTICLES

The wear appearing as a result of an impact strain by abrasion partice ls in an impact- crusher was simulate with a special test machine. Wit h the impact wear test machine were investigated the effects of impact s at different groups of materials to investigate the wear behaviour v ersus the number of contacts. In view of the abrasive behaviour of the materials the tests demonstrate the necessitiy to consider the penetr ating ability of the abrasive particels in the surface of the sample. By means of microphotos was developed a structural model for the abras ion of ductile areas of the material.