Features: 1. Adopting computer intelligent control, laser automatic detection, LCD touch screen human-machine interface, screw stepper motor lifting and other technologies, it has the characteristics of linear heating, uniform mixing of bath solution, and automatic completion of sample detection. It is a resin softening point measuring instrument with high automation, fast and convenient testing, and accurate and reliable test results. 2. The instrument heats the solution medium and resin through a heating tube, and the temperature inside the beaker is uniformly stirred by a magnetic stirrer. The controller uses interpolation algorithm to control the output, causing the medium to rise linearly at 5 ℃/minute. The resin in the experimental ring begins to slowly soften during the heating process. When the softening temperature point is reached, the resin in the sample ring slowly decreases in a water droplet shape under the gravity of the steel ball. The average temperature when the resin in the two sample rings descends and contacts the lower baffle is the resin softening point temperature. 3. The instrument mainly consists of chassis bracket, touch screen human-machine interface, screw lifting system, heating and temperature adjustment system, laser detection system, magnetic stirring system, and other parts. 4. For the convenience of experimental operations and the smooth lifting of components inside the beaker, a testing platform was designed. The testing components were suspended and positioned on the testing platform, and the testing platform and components were driven by a screw to descend smoothly and accurately, achieving the alignment of the laser beam column close to the upper side of the lower baffle. 5. The experimental process includes animated simulation display, touch operation, and human-computer interaction interface, which is more intuitive and convenient. 6. Temperature control adopts slope interpolation algorithm, accurate heating, program control, and real-time temperature control. 7. The split type magnetic stirring adopts stepless speed regulation, resulting in more uniform temperature. 8. Laser automatic detection and judgment of sample falling, with strong anti-interference ability and high reaction sensitivity. Technical parameters: 1. Measurement range A. For samples with a softening point below 80 ℃, 5 ℃ to 80 ℃ (distilled water). B. For samples with a softening point above 80 ℃, 32 ℃ to 162 ℃ (glycerol). 2. Temperature resolution: 0.1 ℃ (deviation can be corrected). 3. Heating tube power: 700W. 4. Heating slope: After starting for three minutes, the heating rate stabilizes at (5.0 ± 0.5) ℃/min. 5. Beaker size: diameter 110mm, height 130mm. 6. Measure the number of samples: simultaneously measure two samples. 7. Mixer: Magnetic stirring, with continuously adjustable stirring speed. 8. Process 200 sets of data storage for experimental results. 9. The stored data can be accessed and displayed on LCD, or transferred to a USB drive for viewing (. csv file). 10. Optional micro printer for printing results. 11. RS-485 communication interface, ModBus protocol. 12. External dimensions 390mm × 300mm × 575mm (length × wide × High. 13. Working power supply 220 ± 10% VAC/50Hz. 14. The overall power of the machine is less than or equal to 800W. 15. The net weight of the entire machine is 12.0Kg. 16. Usage environment: A. Temperature: 15 ℃~35 ℃ and relatively stable, without obvious air convection phenomenon; B. Humidity: ≤ 85%;
The resin softening point tester adopts full computer control, electronic photoelectric measurement, LCD display screen display, and optional micro printer to automatically print test results. This instrument also has the characteristics of temperature additivity, uniform mixing of the bath solution, and the ability to test two samples simultaneously. It automatically detects the softening point of the samples, with a high degree of automation, fast and convenient testing, and reliable test results. It is an intelligent instrument for asphalt softening point testing.
