SDC-1500 high temperature and high vacuum contact angle measuring instrument Introduction
The high temperature and high vacuum contact angle measuring instrument SDC1500 is mainly composed of main body bracket, special light source, telephoto lens, industrial imaging CCD, high temperature and high vacuum furnace body, water circulation cooling system and vacuum pump special analysis software; it is applied under high temperature vacuum condition. The principle of video optics is used to test the wetting and spreading properties of various materials. SDC1500 has the characteristics of simple operation, high heating temperature, stable vacuum, accurate analysis and rich algorithms. The instrument is widely used in ceramic materials research, metal materials research, brazing research. , aerospace materials research, steel smelting research, composite materials research. Features
(1) The overall support structure: high-strength aluminum alloy material structure, firm and stable, linear optical path design, clear and stable imaging;
(2) Optical system: optical lens with thermal insulation device, 6x optical zoom, continuous zoom zoom, dedicated telecentric lens, suitable for long focal length imaging; optical system can be adjusted by sliding, easy to place samples, easy to operate;
(3) Video system: imported CCD movement camera system, clear image, true restored image; video speed up to 25 images per second; 1.3 million black and white pixels; USB data transmission;
(4) Light source system: software adjustable, no hysteresis stepless adjustment LED white light cold light source, life expectancy of more than 20,000 hours, suitable for high temperature and long-term stable work;
(5) Heating system: silicon carbon rod heating mode, 3KW/220V, with electric overload protection device; digital display intelligent 30-segment programmable temperature control; maximum temperature 1500 °C, maximum long-term working temperature 1400 °C; dense alumina ceramics Tube, outer diameter Φ50 × inner diameter Φ42 × length 520mm;
(6) Temperature measurement: Platinum rhodium thermocouple temperature measurement; the built-in platinum crucible thermocouple in the heating tube measures the actual temperature inside the tube;
(7) Cooling system: water circulation cooling system protects the windows on both sides of the heating pipe to protect the other parts of the instrument from overheating; the water flow rate reaches 1440ml/min;
(8) Vacuum system: 6×10-5Pa at room temperature; 6×10-3Pa at temperature ≤1400°C; high vacuum requirement at high temperature with two-stage combined vacuum pump; Directly connected pump; the latter stage adopts the special molecular pump designed by the Chinese Academy of Sciences, the volume is small, the ultimate vacuum is high; all the vacuum pump body is made of high-purity stainless steel material; the composite vacuum gauge is configured; the vacuum measuring range is 105pa-10-7pa; the vacuum system can also Inert gas protection;
(9) Sealing system: all valve structures adopt imported sealing materials; ceramic heating pipes have quartz glass windows on both sides;
(10) Analytical method: fully automatic fitting measurement method such as tangent method, width and height method, ellipse method; contact angle analysis method such as manual fitting method; and surface tension measured by Laplace-Young method;
(11) Analysis software: The software can realize the functions of video/replay, interval photographing, instant screenshot, etc., and real-time display of temperature and wetness; automatic fitting and calculation of contact angle and surface tension; automatic export of experimental data report;
(12) Contact angle standard sample: A contact angle standard sample is provided to calibrate the contact angle measurement accuracy. Technical Parameters
1. Contact angle measurement range: 0-180°
2. Contact angle measurement accuracy: ±0.1°
3. Temperature range: normal temperature -1500 °C
4. Cooling method: water-cooled
5. Light source: industrial LED cold light, life of more than 20,000 hours
6. Vacuum furnace tube size: outer diameter Φ50 × inner diameter Φ42 × length 520mm
7. Electric furnace heating power: 3KW/220V
8. Maximum operating temperature: 1400 ° C
9. Long-term operating temperature range: RT ~ 1400 ° C
10. Constant temperature zone: The center of the furnace tube is Φ42×L30mm, ≤±1°C.
The center of the furnace tube is Φ42×L40mm, ≤±1.5°C
The center of the furnace tube is Φ42×L50mm, ≤±2.5°C
11. System vacuum sealing standard: 6.65×10-3Pa
12. Temperature control mode: digital intelligent 30-segment programmable temperature controller / SCR intelligent module / PID mode; another digital temperature meter shows the temperature inside the furnace tube; temperature measurement is a single platinum rhodium thermocouple.
13. Composite vacuum gauge: resistance gauge: range: 105pa-10-1pa
Ionization gauge: range: 100pa-10-7pa
14. Install the oil immersion pointer vacuum gauge on the gas pipeline. The pointer indicates the system vacuum and the system pressure range: -0.1Mpa~0.15Mpa.
15. When the equipment is operated at 1200 °C, the required cooling power: 1000W; converted to 25 °C cooling water flow: 1440ml / min.
16. Distance between two observation windows: 736 mm.
Introduction
The high temperature and high vacuum contact angle measuring instrument SDC1500 is mainly composed of main body bracket, special light source, telephoto lens, industrial imaging CCD, high temperature and high vacuum furnace body, water circulation cooling system and vacuum pump special analysis software; it is applied under high temperature vacuum condition. The principle of video optics is used to test the wetting and spreading properties of various materials. SDC1500 has the characteristics of simple operation, high heating temperature, stable vacuum, accurate analysis and rich algorithms. The instrument is widely used in ceramic materials research, metal materials research, brazing research. , aerospace materials research, steel smelting research, composite materials research.
