DX8371 Non-combustible Testing Machine For Fireproof Building Materials

DX8371 non-combustible testing machine for fireproof building materials

1. Comply with standards:

It is developed in accordance with the technical indicators and requirements specified in the national standard GB/T 5464-2010 "Test Method for Non-flammability of Building Materials" and GB/T 8624-2012 "Classification of Combustion Performance of Building Materials and Products". IS01182: 2002 "Fire Reaction Test of Building Materials - Non-flammability Test".

2. Scope of application:

It is mainly suitable for the test method of judging the combustion performance of building materials under specified conditions. It is suitable for testing the combustion performance classification of Class A fireproof materials in the GB8624 combustion performance classification of building materials.

3. Main features:

This equipment adopts industrial computer and 16-bit high-precision AD acquisition card, and the collected data is completely processed by the computer, which greatly simplifies the traditional manual data calculation work; Humanized operation interface, simple and convenient operation, people who do not know how to use a computer can learn to operate after 5 minutes of training. During the test, the tester can see the test data and temperature curve in real time; After the end of the test, the test report is automatically generated, and the test data is clear at a glance, which is convenient for the operator to save and print and forward. The equipment is equipped with a high-precision voltage regulator, and the voltage fluctuation is within 2% to ensure the stability of the input test voltage; The equipment also has overheating and overcurrent protection devices to prevent the heating furnace from being overloaded during the heating process, effectively prolonging the service life of the furnace.

Main parameters:

1. The test device includes a heating furnace, a specimen holder, an air flow hood, a thermocouple, a power regulator, a voltage regulator, an intelligent temperature control device, and a computer (which can record the temperature curve and all the data of the test)

2. Heating furnace: Φ95mm× Φ75mm× Φ150mm, 3mm×0.2m nickel 80% chromium 20% resistance band

3. Weight of sample rack: 15g+1g

4. Airflow hood: Φ75mm×500mm

5. Thermocouple: insulated nickel-chromium armor Φ3mm

6. Voltage regulator: 2KVA, voltage stability≤±1%

7. Thermometer: 0~1000±2%

8. Timing time range: 0~99h accuracy±1S

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

10. Stability time: from room temperature to 750°C≤1h;

11. Furnace temperature: 750±5°C;

12. Temperature drift in furnace: 2°C/10min;

13. Heating power: 800~1000W;

14. Maximum power: 1.5KW;

15. Power heating voltage: 0~100 V adjustable

Equipment structure: This machine is composed of a heating furnace, a control box, a computer, and an air stabilizer.

Combustion box size: L700*W400*H850(mm).

The combustion box and control box are made of high-quality SUS304 stainless steel, which is beautiful and generous in appearance. The internal parts are made of SUS304 stainless steel, which is good anti-rust.

Temperature Control System:

Thermocouple: K-type nickel-chromium armored thermocouple with wire diameter of 0.3 and outer diameter ¢ of 1.5*300 is adopted, which fully meets the first-class accuracy required by GB/T5464.

Temperature acquisition: EVOC 16-bit AD, high-precision temperature acquisition card, with the computer system to calculate and process the acquisition signal, the control is very accurate.

Conditions of use: The ground is flat, well ventilated, and does not contain flammable, explosive, corrosive gases and dust. There are no sources of strong electromagnetic radiation in the vicinity. Leave proper maintenance space around the equipment.

Temperature: 25°C~35°C.

Allowable voltage fluctuation range: 220V±10%.

Allowable frequency fluctuation range: 50Hz±1%.

The user is required to configure the equipment with a leakage air switch at the installation site, and this switch must be independent and dedicated to the use of the equipment.

Test furnace size: L550×W550× H2100 (mm).

Control box size: L700×W600×H1200 (mm), the control box is controlled by computer.

The experimental furnace is made of high-quality (t=1.2mm) stainless steel, which is beautiful and generous in appearance.

The internal parts are made of SUS304 stainless steel, which has good rust resistance.

Temperature control system: computer intelligent temperature control system.

Thermocouple: Nickel-chromium armored thermocouple with a diameter of φ1.5mm and an accuracy of II.

4. Performance indicators

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

2. Heating power: 1500W;

3. Temperature range: (-200~1300)°C;

4. Temperature control range: (300~750)°C;

5. Temperature measurement accuracy: ±1°C;

6. Temperature control accuracy: ±3°C;

7. Initial equilibrium temperature in the furnace: (750±5) °C, temperature drift within 10 minutes≤ 2°C;

8. Stable temperature in the furnace: from room temperature to 750°C≤ 1 hour;

9. Heating furnace tube size: inner diameter (75±1) mm, height (150±1) mm;

10. The specimen is cylindrical: diameter 45mm, height (50±3) mm;

11. Floor area: 1 square meter;

12. Temperature probe: the outer diameter is 1.5mm, and the wire diameter is 0.3mm.

13. Power regulation: 0~1200 V adjustable;

14. State adjustment: Before the test, the sample must be adjusted in a ventilated drying oven with a temperature of (60±5) °C for (20~24) h, and then the sample is cooled to room temperature in a drying dish. The mass of each group of specimens should be weighed to an accuracy of 0.01g before the test.

15. Probe test point: test chamber, test piece center, test piece surface, furnace wall.

Instrument

The entire instrument is housed in a 19" enclosure and includes a temperature controller, overtemperature alarm, and power controller. The power controller keeps the temperature under the influence of voltage fluctuations and displays the power of the delivered power supply in watts.