Expansion coefficient tester
Release time: 2020-07-26 20:49:08 Number of views: 10378
Equipment introduction:
The NBD-TDA1200-45TI thermal expansion tester puts the sample under the control of a preset temperature program (rise/fall/constant temperature and its combination), and measures the change of the length of the sample in the test direction with temperature or time under the condition that the load force is negligible. It is used to accurately measure the expansion or contraction of materials during heat treatment, and is suitable for the testing of materials such as ceramics, building materials, glass, refractories, metals or alloys.
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Configuration
(Model：NBD-TDA1200-45TI)
| Equipment features: 1, automatic calculation of expansion coefficient, volume expansion coefficient, linear expansion, rapid thermal expansion; 2, automatically calculate the compensation factor and automatic compensation, but also manual correction (online); 3, automatically record, store, generate test report, USB interface export print temperature expansion coefficient curve; 4, the temperature interval is set freely, the small interval is 1℃. 5. All the operations of the machine are completed automatically, and report data is freely exported without another computer. | |
| The NBD-101EP embedded operating system enables the following controls: 1. Input test information; 2. Automatic detection of test samples; 3. Automatically complete the sample test according to the process curve set by the customer 4. Record the data, and automatically generate reports, each data report package to generate files; 5. Customers can freely export the required files (reports and data) according to their needs. | |
| dL/L0 curve map: It reflects the linear expansion process of the bar sample material during the heating process and the phase transformation process at higher temperature. | |
| Structure diagram: | |
| Pressure measurement and monitoring: | |
measuring mechanism |
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Vacuum degree: ≤5Pa (mechanical pump) | ||
Electrical Spec. | AC220V 1.2KW | |
measuring range | RT—1100℃ | |
Heating rate | 0.1 to 30 ° C /min, the recommended heating rate ≤ 10 ° C /min | |
Temp. Accuracy | ±1℃ | |
Sample holder | High purity quartz (customizable corundum) | |
样品状态尺寸 | Sample state: Solid diameter: Φ6~8mm±0.5mm Length: 25~50mm±1mm | |
样品长度测量 | Automatic instrument measurement | |
试样测量环境 | Air environment; Static, dynamic atmosphere environment; Or vacuum environment (≦1000℃) (optional vacuum system) | |
位移分辨率 | 1μm, automatic calibration range | |
系统测量误差 | ±0.1-0.5% repeatability error ≦± (0.1-0.2) *10e-6 | |
气密性 | 0.231KPa/min | |
操作环境 | NBD-101EP embedded operating system, one machine to do all, no external computer | |
操作过程 | The whole test process is controlled automatically, the chart display is intuitive, and the test report is generated automatically. | |
Cautions | 1. Keep away from vibration sources and large electrical equipment. The instrument power supply needs to be connected separately. 2. The constant temperature water bath must use clean distilled water or deionized water, and the water temperature of the constant temperature water bath is adjusted to be 2 ~ 3℃ higher than the room temperature; 3. To ensure the continuous stability of the displacement sensor signal and reduce signal drift, it is recommended that the host power supply is always on to maintain the stable working state of the detector. The thermostatic water bath is always on to maintain a constant temperature in the detector area. If you need to turn off the instrument host or water bath, restart the machine, please wait at least 0.5 hours before testing. 4. When the equipment is used, the pressure in the furnace tube shall not exceed 0.15MPa (absolute pressure) to prevent damage to the equipment caused by excessive pressure; 5. When used under vacuum, the operating temperature of the equipment shall not exceed 1000℃. 6. The internal pressure of the gas supply cylinder is high, and when the gas is passed into the furnace tube, the pressure reducing valve must be installed on the cylinder. It is recommended to choose a small pressure reducing valve for test, and the pressure reducing valve has a measuring range of 0.01MPa-0.15MPa (relative pressure), which will be more accurate and safe in use. 7. Sample notes: a. The composition of the sample should be generally understood before the experiment, and the instrument is not recommended for strong contamination and volatilization. b. General samples should not be tested above the melting point. For the softening point test of glass samples, it should be ensured that the temperature will stop immediately after rising above the softening point (dL curve from expansion to rapid contraction) (with the help of the automatic protection function of "softening point detection"). c. For some samples that may stick to the bracket or push rod or cause contact surface contamination after heating up, gaskets should be placed on the front and back of the sample. d. For some samples that are more polluting, may decompose, and may contaminate the support part, it can be tested in a protective sleeve. | |
standard configuration | 1. One test host; 1 set of quartz sample support; 3. One Al2O3 standard sample; 4. A copy of the manual. | |
selective assembly | 1. It can be equipped with a constant temperature water bath by setting the constant temperature of the circulating water, so that the detector part is always in a stable temperature environment, reduce the signal drift caused by room temperature fluctuations, and ensure the stability of the signal; | |
Service | One year warranty with lifetime service (warranty does not cover consumable parts such as quartz cavities, ejector rods and O-rings) | |
Net weight | 20KG | |
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Phone: 400-000-3746
0371-6320 2805
After-sales service： 0371-6320 2805
MR. CAI： 181-0371-5723
Mr.Gao: 188-3829-0747
Ms.Huang: 188-3829-0748
Email ： nbd@nbdkj.com
Address：8# zhuyuan, Xinhua subdistrict, Xinzheng, Zhengzhou, China