Scope of application: This test method for assessing the flame resistance characteristics of decorative fireproof coatings applied to the surface of combustible substrates under specified conditions is also applicable to the determination of the flame resistance time of decorative fireproof coatings
Compliance with standards: Complies with the test standard requirements of GB/T 12441-2005(Appendix A).
Main parameters
Test station: 1 station
Temperature uniformity: ±2.5℃
Sample size: L900*W900, thickness 5mm, surface smooth and flat.
Temperature control system: Digital display temperature control meter, capable of simultaneously recording multiple sets of data.
Thermocouple: Outer diameter not exceeding 3mm; Wire diameter 0.5mm, accuracy no less than grade II, measurement range 1300℃.
The timer error shall not exceed 1 second /h.
Automatic alarm: Five thermocouples are used to measure the temperature on the backfire side of the sample. An automatic alarm will sound when the temperature reaches 220℃.
Gas source: Liquefied petroleum gas or natural gas, with a purity of over 95%. (Provided by the user
The air volume of the blower (1 to 5) m ³ /min is adjustable.
Case dimensions: L820mm × W820mm × H1500mm
Blowtorch: Made of SUS304 material, self-made by our company.
The equipment structure consists of four major parts: the main control box, the blower device, the combustion support, and the combustion burner. The control box is portable.
Components, materials
The frame material is made of high-quality 304 stainless steel square tubes welded together. The control box material is (t=1.2mm) electrostatic steel plate, and the surface is treated with plastic spraying, making it more smooth and beautiful.
Control system
The control box adopts a relay control system. All electronic components are from leading domestic brands, which can better ensure the working performance and detection accuracy of the machine.
The temperature is controlled by an imported intelligent P.I.D thermostat (with automatic calculation function), high-precision PT100 thermocouple sensor and timer.
The equipment is equipped with the following safety protection devices: power overload protection, short circuit protection, control circuit overload protection, and ultra-high temperature protection.
Environmental usage conditions
There are no strong electromagnetic radiation sources nearby. Leave appropriate maintenance space around the equipment.
Temperature: Room temperature to 40℃.
Power supply requirement: AC220 (±10%) V/50HZ
The allowable voltage fluctuation range is 220V±10%.
Allowable frequency fluctuation range: 50Hz±1%.
When the equipment is not in operation, the ambient temperature should be maintained within +0 to 45℃
