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A Brief Discussion on the Overall Structural Design of the Asphalt Softening Point Tester
2020-04-26
The Asphalt Softening Point Tester is a precision electronic instrument widely used for determining the softening point of various materials that are not liquid at room temperature, such as hot-melt adhesives, road petroleum asphalt, and coal tar asphalt. This instrument features fully computer-controlled operation, electronic photoelectric measurement, an LCD display, and a miniature printer that automatically prints test results. The Asphalt Softening Point Tester also boasts temperature heating capability, uniform bath liquid stirring, and the ability to simultaneously test two samples. It automatically detects the softening point of the sample, offering a high degree of automation, quick and convenient testing, and reliable results. It is an intelligent instrument designed specifically for determining the softening points of hot-melt adhesives, asphalt, and similar products.
The asphalt softening point tester consists of a control box, a glass beaker, a heating ring, and a specimen holder assembly. It features separate displays for time and temperature. The heating rate is controlled by a PID-plus-fuzzy-logic algorithm, and the system is equipped with a programmable magnetic stirrer for uniform stirring. The heating process exhibits excellent linearity, and high-precision photoelectric detection technology is used to automatically scan and record the descent distance of the steel ball (25.4 mm). To perform the test, simply press the “Start” button, and the entire procedure will be completed automatically, ensuring accurate and reliable results.
The asphalt softening point tester is a new-generation instrument developed with advanced digital display displacement sensors and microprocessors, designed to measure the penetration index of asphalt. It features integrated control over needle penetration depth, heating temperature, and test duration, boasting a high degree of automation and ease of operation, thereby enhancing testing accuracy. Equipped with a printer interface (optional), this instrument is an ideal choice for research institutions, colleges and universities, supervisory authorities, petrochemical enterprises, and construction companies as their next-generation experimental equipment.
The asphalt softening point tester uses two laser sensors to detect the descent of a ball and determine the softening point. According to regulatory requirements, the circuit control system monitors the bath temperature and maintains a consistent heating rate. To ensure uniform temperature throughout the container during the test, the device is equipped with a magnetic stirrer whose speed can be adjusted from 0 to 160 rpm. Available languages: English, French, Spanish, German, and Italian. Features include: clock calendar, test number, username, important notes, as well as start and end times of the test. Real-time visual display shows the bath temperature, test progress, and stirrer speed. The instrument measures the temperature at which asphalt softens under specified conditions and its ball drops by 25 mm. Key features of the asphalt softening point tester: Temperature is automatically controlled by the instrument, eliminating human error; an external temperature probe is used, and PID plus fuzzy logic algorithms are employed for precise temperature control, ensuring linear temperature rise. The device boasts a new, compact design and is equipped with a programmable-speed magnetic stirrer, providing more uniform test temperatures. Test results can be manually verified, and the average value is calculated automatically.
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