How to test the flame retardant performance of a hard hat？

Safety helmet flame retardant performance test for safety helmet flame retardant performance test, high degree of automation, easy operation, safety helmet for safety helmet production industry, various large-scale production and construction process testing.

The flame retardant performance of the safety helmet is tested by the different working principles of each part of the normal heat and fire safety helmet, and its flame retardant performance under the effect of heat radiation. During the testing process, the flame altitude, combustion time, etc. were monitored, the fire scene was simulated, and the combustion behavior was monitored and recorded.

Main structure

Safety helmet Flame retardant performance test Main parts: Safety helmet with support, damage protection, safety helmet during the process Position determination, simultaneous adjustment of safety helmet, fire firing distance function; igniter, igniter, combustible igniter, electric ignition method, combustible Automatic movement time positioning, flame high capacity activation adjustment, integrated flame height measuring device, this guarantees flame stability; calculation inclusion point Combustion time measurement device (Japanese), accurate record of fire application time and safety helmet time, combustion time; monitoring equipment, combustible area available. Also, the ability to avoid the external glass current movement and test the production process; restraint system in general PLC process order control system for installation, touch panel interface, operation method direct view, ability to set up and record the number of tests for each type; fuel supply system mechanism. Sources (rujia, petroleum liquefaction gas, etc.), power control, pressure control, etc., assuring the specified output length flammable; the safety device is highly sensitive to detect flammable gas leakage, and once the combustible gas leakage is detected, the vehicle's vehicle safety system will cut off the source.

Working principle

The flame retardant performance of the hard hat is examined by the main principles of the combination of the main principles of thermal science and the combustion theory, the simulation of the flame retardant environment under medium high temperature and low flame conditions, and the quantification of the flame retardant performance of the hard hat materials. Its core machinery is located in the U.S.A. The horizontal fuel tube (inner diameter is usually 10mm) produces a constant flame, and the mixed radiant heat source (as a heat source) provides a continuous heat ray, and the construction and combination of the fire and the heat rays are combined in the test scene. During the testing process, the flame altitude was controlled by the precision control method (height 50mm), the precision control was 50mm±2mm in the chamber, the flame application time was set (about 10 seconds), and the flame was received under the condition of ensuring that materials were available. When the flame contact safety helmet is tested, the surface temperature of the test box rises rapidly, the material can be decomposed by heat, and the internal temperature can be changed when the K-type heating battery is used. The flame retardant performance of the material is quantified with indicators such as the sensor's history of combustion time (the length of time it lasts to burn after the flame is removed), the number of times it passes, the time it lasts to burn, and whether or not it is permeable. During the testing process, the electronic ignition system, automatic positioning device and high-precision sensor are required to ensure accurate control and verification of the results of the test.

Operation process

At the time of testing, we will prepare for the demand, provide direct access to electricity and combustion sources (such as heat, fire, etc.), and determine the power of the source of power. The gate is closed in front of the grill, the electric power source is opened, and the waiting indicator light is turned on and then the ``return'' key is turned on to fire the flame. After that, the flame tuner is expanded, the flame is turned on, the flame is turned on, the flow rate of the flame is controlled, and the flow rate is used. The length of the flame is fixed, the height of the flame is fixed at 50mm±2mm, and the length of the flame is moved after the flame is set. After that, the test will start, the fireworks will be moved to the safety helmet test area, and the fire will automatically stop after 10 seconds, and the watch will start. Investigate the appearance of the fire, directly record the fire; burn the fire, wait for the fire to burn out, then press the "return" button to stop the time, record the time and see if it is correct or not. After the test, the hard hat is taken out, the heavy test is given, and the new test box is released with the return key. Japanese "cleaning" key is installed, the test is finished, the power source is shut down after the test is completed, and the cleaning residue is removed. During the process, there are important precautions to be taken, safety precautions, test environment requirements, prohibited fires, combustible gas leakage, automatic operation disconnection; compliance with standards, operation requirements GB/T 2812 - 2006. A system for determining demand and control of fire distance, time, etc. In addition, there are some technical highlights, how to record the burning time, how to prepare the sensor for automatic operation, and the moment when the flame is removed when the flame is removed. Startup record, partial trial available. Alternative method for working with steam oil lamps (flame length 230mm, distance 130mm combustion heat 10 seconds). During the test, there are always problems, ignition difficulties, time limit, flow rate demand, maintenance of ignition, avoidance of current. Indeterminate; the number of different times, the altitude of the fire or not, the purity of the combustion, the influence of the degree of combustion; .

Safety measures should be used to test flame retardant performance when testing. Operators must wear appropriate safety equipment, comprehensive fire protection jackets, eye protection, and high temperature resistant clothing. During the testing process, the fire prevention source was excreted, and the combustible materials were spread, and the evacuees were injured or prepared. We will arrange for emergency personnel to arrange emergency stoppages, fire detection and police systems, and ensure quick response in the event of an emergency. Firearms are available in the examination area, and the owner and operator are required to receive emergency training. Comply with the highest standards of safe operation, ensure safety, and provide important guarantees for safe operation.

Precautions

During the exam period, the operator complies with the operational standards and safety standards, ensuring the safety of the exam personnel.

Before the test, the entire process was completed, and the guarantee was made in good working condition.

During the course of the test, be careful to observe and record each kind of different appearance, and then continue to analyze and write the numbers.

When the test is finished and the time is closed, the source of the power source is the original, and the quality of the storage is good.

Safety helmet flame retardant performance test and production guarantee safety helmet quality test equipment, its scientific working principles, comprehensive operation process and complete safety measures, jointly constructed safety safety testing system. In order to prepare for the construction, the number of participants should be limited to emergency protection, and each time the system is realized, the safety standard is high and the cost of compliance and human life is high. It's just that you have a certain amount of light and control, and it's good to have a good daily routine. Safety, we still rely on safety helmets to provide quality control, and to protect the lives of our employees.