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Our video on metal powder play
Mrs. Melanie Kolokofski
Mrs. Ute Scheible
phone: +49 711 51832-0
powder@dr-fritsch.de
There are two particularities about requirements on diamond tools in the building sector:
Asphalt is characterized by the extreme abrasiveness of the material. Such abrasiveness is in many cases even enhanced by special aggregates. The bonds often contain tungsten or tungsten carbide, which protect them against abrasiveness. Such bonds have a high density and relatively high sintering temperatures and therefore usually require a thermally stable diamond.
The saw blades often have inclined segments, hammer segments or some segments which are displaced towards the center, in order to protect the core from excessive wear.
If special, local aggregates (such as very hard quartz-pebble) are used, we can recommend the optimum bond upon request.
• attractive prices
• a suitable bond for every application
• delivery at short notice
• individual adaptation to our customers’ requests
• sold in quantities from 1 kg up
| Abrasiveness / reinfotcement |
Floor cutters | Drill bits 31-150mm dia. |
Drill bits from 150mm dia. up |
|
|---|---|---|---|---|
| Asphalt wet cutting |
normal very abrasive |
V23-300 V19-785 |
V15-785 V17-785 |
V15-785 |
| Asphalt dry cutting |
fast cutting normal very abrasive |
85-3 V13-785 V4-700 |
V13-785 V15-785 |
V13-785 |
The following chart gives you an overview of the different properties of all asphalt bonds. You can download this overview as a PDF file by means of a download link at the end of the chart. If required, you can download the required, free-of-charge viewer from the software company’s homepage.
| Bond | Sintering temp. °C |
Hardness HRB |
Density max. g/cm³ |
Main components | Particularities | Cold-pressing properties |
|---|---|---|---|---|---|---|
| 85-3 | 860-920 | 105 | 9,40 | Co, WC | - | good |
| V13-785 | 1080 | 33 (HRC) | 9,50 | Co, WC | - | difficult |
| V4-700 | 900 | 41 (HRC) | 10,07 | Fe, WC, Bz | cobalt alternative | difficult |
| V15-785 | 1140 | 46 (HRC) | 10,60 | Co, WC | - | medium |
| V23-300 | 980-1020 | 50-51 (HRC) | 11,76 | WC, Co, Bz | contains Ni | medium |
| V17-785 | 1160-1200 | 52 (HRC) | 11,76 | WC, Co | - | difficult |
| V19-785 | 1180-1220 | 65 (HRC) | 13,30 | WC, Co | - | difficult |