JCB-2 Non combustibility Test Furnace for Building Materials

1Scope of use

This experimental furnace is based onTechnical indicators and requirements specified in the national standard GB/T5464-2010And developed,Applicable to the test method for evaluating the combustion performance of building materials under laboratory conditions.Suitable for testing the combustion performance grading of Class A fire-resistant materials in GB8624 for building materials

IIFunctional Features

1. Adopting microcomputer technology andControllable silicon technology adjusts the furnace temperature through power regulation

2. Operations can be controlled on the touch screen, with a high degree of automation,Display and record the temperature inside the furnace, at the center of the sample, and on the surface of the sample during the experiment，Operation prompts will automatically pop up for the experimental steps

3. Can query historical curves and automatically determine temperature balance

4. The testing process is safe, reliable, and easy to operate.

5. Customized mold forming refractory furnace with good insulation performance

6. By using high-quality strip heaters, the furnace temperature can be raised to 900 ℃

7. PLC+NAbview professional software provides real-time display of furnace temperature, sample center temperature, and sample surface temperature curves, enabling automatic control, data acquisition and processing, data storage, and output of measurement results.

8. The top is equipped with an observation mirror, which facilitates users to safely observe the combustion status of the samples inside the furnace.

IIIMain technical parameters

1. Furnace body specification: Φ 40cm, height 1.5m.

2. 80/20 nickel chromium resistance strip specifications: thickness 0.2mm, width 3mm.

3. Sample specification: Φ 45 × 50 (mm).

4. The inner diameter of the heating furnace tube is 75mm ± 1mm, the outer diameter is Φ 90mm ± 1mm, the height is 150mm ± 1mm, and the power is about 2KW

5. Thermocouple: Nickel chromium nickel silicon armored thermocouple, with an outer diameter of 1.5mm and a wire diameter of 0.3mm，Electric heating wire power: 2KW

6. Temperature stabilization time inside the furnace: from room temperature to 750 ℃, the stability can be tested for about 1 hour

7. Install thermocouples inside the furnace, at the center of the sample, and on the surface of the sample;

8. 360 degree rotatable and adjustable thermocouple scanning device;

9. Stainless steel inverted conical air stabilizer and cylindrical guide cover;

10. The software automatically controls the heating rate and controls the furnace temperature in stages;

11. Operating environment: -5 ℃ -40 ℃.

12. Power supply voltage: AC220V ± 10%, 50Hz, current ≤ 10A;

13. Stabilization time: from room temperature rise to 750 ° C ≤ 1h;

14. The heating source is an electric furnace preheated to 750 ± 5 degrees Celsius, with a maximum temperature of 900 degrees Celsius inside the furnace，Furnace temperature 750 ± 5 ° C，Temperature drift shall not exceed 2 ℃ within 10 minutes

15. Temperature measurement accuracy:≤± 0.5 ℃.

16. Heating power: 800-1000W;

17. High power: 1.5KW;

18. Power heating voltage: adjustable from 0 to 100 V;

19. A central copper hammer device inside the furnace is required to calibrate the temperature inside the furnace. The connected curves need to be within the standard required curve range

20. A furnace wall temperature calibration thermocouple is required to calibrate the furnace wall temperature using scanning thermocouples at three equal angles

21. In the software, it includes current regression to determine temperature equilibrium conditions

22. Controller size:48 * 41 * 32cm (length, width, height)

23. Combustion furnace body: 100 * 40 * 40cm (length, width, height)

4Design standards

GB/T5464-2010 GB/T8624 ISO1182Fire reaction test for building products - non combustible test

5List of accompanying goods

1. 1 furnace body

2. 1 control box

3Hanging basket1only

4One low pressure plate (placed at the bottom of the furnace)

51 connecting wire

61 copy of instruction manual

71 certificate of conformity