Laboratory Automatic Digital Fraass Bitumen Brittle Breaking Point Tester
PRoduct description
This Fraass breaking point tester is composed of brittle point tester and low-temperature water bath, brittle point tester is test main part of brittle point test, low-temperature water bath is the refrigeration equipment of brittle point tester , it’s for cooling.
Brittle point tester freezing room cooling rate is 1 ° c per minute. Brittle point tester electric bending mechanism loading specimen automatically, the specimen bent once every minute.
Asphalt Breaking Point Test operation panel is composed of the operator panel LCD display, CANCODE, function switch, printer and other components, Easy to manipulate and show the specimen test results intuitively.
Working Principle
Apply a layer of asphalt film on a metal sheet of a certain specification, place it in an insulation cylinder equipped with a cooling device, and bend the metal sheet by a handle. As the temperature decreases, the temperature of the asphalt film also gradually decreases. When it drops to a certain temperature, the asphalt film breaks under the specified bending conditions. The temperature at this time (displayed by an alcohol thermometer) is the brittle point of the asphalt.
Instrument Features
The automatic asphalt brittle point tester uses a liquid crystal display and a Chinese operation interface. It is automatically controlled by a single-chip microcomputer. The experimental process does not require manual supervision. It can automatically detect various parameter changes and obtain results. It has self-diagnosis function and prompt operation function. It also has a built-in printer to output results and RS-232 output interface.
Main technical parameters and indicators
| 1. Working power supply | AC (220±10%) V, 50Hz |
| 2. Cooling method | low temperature circulation bath |
| 3. Cooling rate | (1±0.5)℃/min |
| 4. Temperature measurement range | -30℃～25℃ |
| 5. Temperature measurement error | ±0.5℃ |
| 6. Specification of sample steel sheet | 41㎜×20㎜×0.15mm (length×width×thickness) |
| 7. Number of samples | 3 samples are tested at the same time |
| 8. Ambient temperature | room temperature～+30℃ |
| 9. Relative humidity | ≤85% |
| 10. Power consumption of the whole machine | 450W (brittle point tester) + 1600W (low temperature circulation bath) |
| 11. Overall dimensions | 500㎜×400㎜×570㎜ (brittle point tester length×width×height) |