| 摘要 |
When asphalt is desired to be reused, the used asphalt is milled up with cutting tools which must be very resistant against wear. The actual milling tool consists of a cutting tool (3) of hard and brittle material which is supported in a holder (1) of less brittle and wear-resistant material. Many such tools are disposed along the circumference of a rotor. The tools are mounted in an inclined manner and are free to rotate around their longitudinal axes. With this known technique, the cutting tool falls out when it has been half worn away. According to the present invention, a technique is presented by which the tool can be held until it is almost completely worn away. |
