It is suitable for the determination of the combustion (flame retardant) performance of various safety flat mesh dense mesh safety nets. According to the 5.1.12 flame retardant flat (vertical) net in GB5725-2009 safety net, the test is carried out according to the method specified in 6.1.6, and the continuous combustion and smoldering time should not be more than 4 seconds. According to the flame retardant performance of 5.2.2.9, the flame retardant performance of the dense mesh safety vertical net is tested in accordance with the test method specified in 6.2.12, and the continuous combustion and smoldering time in the horizontal direction should not be more than 4 seconds Test requirements: Randomly remove five mesh rope braided ropes with a length of 300 plus or minus 5mm from the sample network, and test them according to the method specified in GB5455, and the result is kept one decimal place. 【Relevant Standards】

Design standard: GB 5725-2009 Safety net applicable standard: GB5455-2014 “Textile combustion performance – vertical release – determination of damage length, smoldering and continuous combustion time”

 【Technical Parameters】    1. Touch screen display/control 2. The equipment is divided into two parts: touch screen control box and combustion box, and the size of the combustion box is 330*330*765mm 3. The front of the combustion box is a tempered glass observation door 4. The top of the box is evenly distributed with 16 exhaust holes, with an inner diameter of 12.5mm, and 6 exhaust holes are distributed on both sides of the combustion box, with an inner diameter of 12.5mm 5. Add a roof plate to the top of the box 6. The top of the box is equipped with a bracket that can support the sample clip, and the bottom of the sample clip is located 17mm above the highest point of the igniter pipe mouth 7. The inner diameter of the igniter pipe mouth is 11mm, and the pipe head and the perpendicular line are at an angle of 25°. Ignition time: accurate to 0.05s 8. Gas source: industrial-grade propane, butane or propane/butane mixture gas, methane gas with a purity of not less than 97% is selected when the specimen is pretreated according to 7.3. Note: The air source and link header users are self-provided 9. Specimen size: 500±5 10. Ambient temperature: -10°C~30°C 11. Power supply voltage and power: 220V±10% 50HZ power less than 100W 12. Microcontroller control, digital display automatic timing 13. The flame time applied by the Bunsen lamp is 0-99M99S, which can be set arbitrarily, and the accuracy ± 0.01s 14. Afterburn and afterglow time: up to 0-99M99S 15. Bunsen lamp blue flame height: 15mm-175mm can be adjusted arbitrarily, equipped with flame height ruler 16. Bunsen lamp automatic ignition time: arbitrary setting 17. Touch screen related parameters: (1) Size: 7 inches Effective display size Length 15.5cm Width 8.6cm; (2) Resolution: 800*480 (3) Communication interface RS232, 3.3V CMOS or TTL, serial port mode (4) Storage capacity: 1G (5) Pure hardware FPGA driver display, “zero” startup time, can be run on power (6) Adopting M3 + FPGA architecture, M3 is responsible for instruction parsing, and FPGA focuses on TFT display (7) The main controller adopts a low-energy processor and automatically enters the energy-saving mode