YY-121 Building Materials Difficult Flammability Test Equipment
YY121 Building Materials Difficult Flammability Test Apparatus
Description:
Building materials difficult flammability tester is my company
according to the national standard, which is used in the
development and production of flame retardant performance testing
equipment, building materials applied to building materials fire
resistant performance test. Adopt computer control, high degree of
automation.
Standards:
GB/T 8625 Test method of difficult-flammability for building
materials
DIN 4102-15 Fire behavior of building materials and elements
Brandschach
Features:
Burning shaft furnace: the combustion chamber, burner, specimen
support, air current stabilizer, and parts such as flue. Adopt
computer control, furnace temperature and pressure, high degree of
automation.
The working principle of the instrument is as follows:
The start of the experiment, the four has been the standard by the
conditioning good specimen is vertically fixed on the bracket for
test piece, composed of a vertical square flue; the position is
adjusted, to ensure that the sample relative distance of (250±2)
mm.
For the formation of uniform flow in the combustion chamber in the
lower part of the furnace body, through the diameter of 200
pipeline at a constant rate and temperature of input air shaft
furnace, meet the provisions of the (10±1) m3/min air supply.
Adjusting the gas flow is (35±0.5) L/min; the air flow is
(17.5±0.2) L/min, and then start the automatic ignition device.
The testing time is 10min, when the average temperature of the flue
gas visible combustion on the specimen is definitely over or five
thermocouples as measured by the maximum value of more than 200℃,
flame can advance interrupt.
Parameters:
1. Power supply: 380V AC 50HZ using gas: methane (purity over 95%)
2. Flow meter: methane: 5 ~ 45L/min adjustable, air: 3 ~ 30L/min
adjustable, precision level: 2.5 grade
3. The specimen size: 190 x 1000 (mm), less than 80mm thickness of
specimen four as a group.
4. Thermocouple: 3.0mm diameter and 1.5mm armored thermocouple
5. The burner nozzle diameter: 3.5mm, dimensions: 200 x 200 (mm)
from the bottom of 1000mm
6. The combustion furnace dimensions: length * width * height
(unit: mm) 1020 x 1020 x3930
7. Internal dimensions: length * width * height (unit: mm) 800 x
800 x 2000
8. Weight: 1 ton
