SP-5A 玻璃徐冷點及應變點試驗
SP-5A
玻璃徐冷點及應變點試驗
Annealing & Strain Point, (ASTM C-598 - Beam)
廠牌：ORTON/U.S.A.
供應商：建成科學儀器股份有限公司
聯絡電話：02-29103818
| 快速詢價 |
行動條碼QR Code
It takes 20 minutes to measure the Annealing and Strain Points of a glass rod or bar. It's simple. After the sample beam (rod or bar) is prepared, the operator simply places the beam into the furnace, enters the sample dimensions into the Orton on board computer, applies the weight, pushes the START button, and walks away. The system does the rest. The operator is free to perform other tasks. Twenty minutes later, the operator returns and reads the annealing point temperature on the display panel. It's that easy. The SP-5A-DAS automatically calculates the rate of deformation and displays the annealing point temperature which eliminates operator differences, judgements, and errors. If an independent computer system is connected to the SP-5A-DAS, both the annealing and strain point temperatures are calculated and displyed on the computer's monitor. The system automatically measures and records the rate of deformation and applies non-arbitrary mathematical algorithms to extrapolate the strain point temperature so operator differences, interpretations, judgments, and errors are eliminated. The Model SP-5A-DAS is a FAST, EASY, ACCURATE, RELIABLE, and REPRODUCIBLE method for QC checks on batch chemistry changes.
This system is comprised of the ASTM specified furnace to heat the sample beam, the Orton PID controller to operate the furnace according to the ASTM C598 thermal cycle, 2-point sample support system with midpoint sample load rod and weight, an LVDT system to continuously monitor the beam deformation, the Orton on board computer with internal logic to determine the annealing point, digital display panel for displaying the annealing point temperature, and software for an independent computer (provided by the purchaser).
*Descriptions & specifications are subject to change without notice
The Orton Model SP-5A-DAS system is well suited for glasses that for one reason or another are not adaptable for flame working, or for applications where thermal expansion or effective length corrections (common to the fiber elongation method) are eliminated. The Orton Model SP-5A-DAS has been designed to automatically monitor the deformation of a 3-point loaded glass beam according to the ASTM C-598 method. Changes in the annealing and strain point temperatures can be used as an indication of changes in batch chemistry from raw material changes or batching errors.
Automatic Annealing and Strain Point DeterminationIt takes 20 minutes to measure the Annealing and Strain Points of a glass rod or bar. It's simple. After the sample beam (rod or bar) is prepared, the operator simply places the beam into the furnace, enters the sample dimensions into the Orton on board computer, applies the weight, pushes the START button, and walks away. The system does the rest. The operator is free to perform other tasks. Twenty minutes later, the operator returns and reads the annealing point temperature on the display panel. It's that easy. The SP-5A-DAS automatically calculates the rate of deformation and displays the annealing point temperature which eliminates operator differences, judgements, and errors. If an independent computer system is connected to the SP-5A-DAS, both the annealing and strain point temperatures are calculated and displyed on the computer's monitor. The system automatically measures and records the rate of deformation and applies non-arbitrary mathematical algorithms to extrapolate the strain point temperature so operator differences, interpretations, judgments, and errors are eliminated. The Model SP-5A-DAS is a FAST, EASY, ACCURATE, RELIABLE, and REPRODUCIBLE method for QC checks on batch chemistry changes.
This system is comprised of the ASTM specified furnace to heat the sample beam, the Orton PID controller to operate the furnace according to the ASTM C598 thermal cycle, 2-point sample support system with midpoint sample load rod and weight, an LVDT system to continuously monitor the beam deformation, the Orton on board computer with internal logic to determine the annealing point, digital display panel for displaying the annealing point temperature, and software for an independent computer (provided by the purchaser).
Operation
The system is initially heated to an equilibrium soak temperature 25°C below the expected annealing point, and waits for the next test. The operator enters the beam dimensions into the on board computer, positions the beam on the sample support, applies the midpoint load rod, and adds the weight. As soon as the START button is pushed, the Orton controller heats the furnace at 5ºC per minute, and the on board computer captures the temperature and LVDT signals of the deforming beam and calculates the beam's deformation rate. Once the deformation rate exceeds a deformation rate corresponding to a viscosity of Log 12 P (a constant that is automatically calculated by the on board computer using the operator inputted beam dimensions and pre-programmed ASTM C598 equations), the Orton controller cools the furnace at 4°C per minute. While the furnace is cooling, the temperature and LVDT signals are captured by the controller's on board computer for storage. The test is automatically concluded when the temperature falls 10°C below the annealing point. The annealing point is the temperature at which an ASTM C598 specific deformation rate occurs. This rate is calculated by the on board computer using the operator inputted beam dimensions and pre-programmed ASTM C598 equations, and is displayed on the console display until the system is reset. The furnace automatically cools to the soak temperature in about 15 minutes, and is ready for the next test. The on board computer can store data for up to 10 tests.
If desired, a separate, independent computer system (not included) can be connected to the Orton controller console via a RS232 port for real time monitoring and analysis. During the test the beam deformation rate, time, and temperature are displayed on the monitor and stored on the hard drive in a text file. At the conclusion of the test, the software automatically and immediately calculates the annealing point temperature at which the ASTM C598 specific deformation rate occurs. This rate is calculated using the operator inputted beam dimensions and pre-programmed ASTM C598 equations. The software also automatically and immediately calculates the extrapolated strain point temperature, which is the temperature where the deformation rate is 0.0316 times the annealing deformation rate, according to the ASTM C598 algorithms.
Or, if preferred, a separate, independent computer system (not included) can be connected to the Orton controller console via a RS232 port after the test is concluded. The data stored by the Orton on board computer is transferred to the independent computer's hard drive in text file format for later independent review, analysis, or permanent storage.
| Model SP-5A-DAS Specifications | |
| Sample Length | 50 mm (other lengths avail.) |
| Sample Cross Section | 2.5 - 5 mm |
| Sample Support | Fused Quartz |
| Sample Load Device | Fused Quartz |
| Maximum Temperature | 1,000°C |
| Heating Element | Kanthal A-1 |
| Temperature Control System | PID - Automatic |
| Elongation Tracking System | LVDT |
| Data Acquisition & Display | Automatic |
| Power Requirements | 120 VAC, 10 amp, 50/60 Hz (240 VAC available) |
| Measuring Unit Dimensions | 12” W x 14” D x 33” T (305 x 355 x 840 mm) |
| Controller Dimensions | 13” W x 12” D x 7” T (330 x 305 x 180 mm) |
*Descriptions & specifications are subject to change without notice
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The Model SP-5A-DAS Brochure is available for immediate downloading in a PDF format (642 KB).
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