I.Scope of application:
Applicable to all types of steel fireproof coatings for indoor and outdoor use in buildings (structures) to determine their fire resistance characteristics under standard fire conditions.
II. Standards:
2.1 Comply with BS EN 1364-2: 2018 "Fire resistance test for non-load bearing parts of ceilings. Part 2" test standard.
2.2 Conform to BS EN 1365-2: 2012 "Fire resistance test for load bearing parts Part 2: floors and roofs" test standard.
2.3 Conform to BS EN 1365-3:2000 "Fire resistance testing of load-bearing elements Part 3: Beams" test standard.
2.4 to BS EN 1365-4:1999 "Fire Resistance Test for Load-bearing Elements Part 4: Columns" test standard.
2.5 conform to the test standard BS EN 1363-1:2020 "Fire resistance tests Part 1: General standards".
2.6 In accordance with the test standard BS EN 1366-6: 2004 "Fire resistance testing of ancillary facilities. Raised access and hollow floors".
2.6 Conformity with the standard BS EN 13381-1:2020 "Test methods for determining the fire resistance action of structural elements Part I Methods for the protection of horizontal structural elements".
2.7 Conformity with the standard BS EN 13381-3: 2015 "Test methods for determining the fire-resisting action of structural elements Part III Methods for the protection of concrete structural elements
2.8 Conformity with standard BS EN 13381-5: 2014 "Test methods for determining the fire resistance of structural elements Part V. Methods for the protection of concrete/pressure plate assemblies
2.9 Conformity with BS EN 13381-6:2012 "Test methods for determining the fire resistance of structural elements Part VI: Methods for the protection of hollow steel pipe concrete columns
2.10 Conformity with BS476-20:1987 "Fire test of building materials and structures. Part 20: General principles of methods for determining the fire resistance of building elements
2.11 Conformity with BS476-21:1987 "Combustion test of building materials and structures. Part 21: Method of determining the fire resistance of load-bearing members
2.12 Comply with BS476-22:1987 "Combustion test of building materials and structures. Determination of fire resistance of non-load-bearing members".
2.13 Comply with BS476-23: 1987 "Combustion test of building materials and structures. Part 23: Method for the determination of the fire resistance of components to the structure
III. Main advantages:
3.1 One furnace can be used for multiple purposes and can be compatible with multiple standards.
3.2 Adopt high-precision acquisition card to collect data of various aspects such as temperature, pressure and flow rate of each road, and analyze, process and
control, generating real-time reproduction of the real information at the time of combustion, and the results are directly derived from the analysis and determination of the microcomputer; the whole machine adopts all high-quality devices to ensure that the system is of high quality, high speed operation and advanced.
3.3 Adopt high-precision acquisition card + multi-circuit module + PLC + computer, and implement PID automatic control mode, with excellent stability, repeatability and reproducibility.
3.4 Adopting WINDOWS XP operation interface and Lab View, a special development software for global precision equipment, the interface style is fresh, beautiful and simple. During the test, the measurement results are displayed in real time and the perfect curve is drawn dynamically, and the data can be saved, read and printed out permanently. With high intelligence, guided menu operation, easy and intuitive features, so that the test results are more accurate.
3.5 The design life of the furnace is more than 20 years, and the furnace is built with American GOVMARK (Gomak) technology. Five-layer structure, when the inner layer temperature 1300 ℃, the outer layer temperature is room temperature; long service life, the insulation material of the inner layer (wearing parts) is easy to replace.
3.6 Multiple safety protection systems including air duct thermal protection, pressure release protection, leakage protection, gas leak detection, gas line safety protection, burner safety protection and other safety facilities to enhance the safety factor in all aspects.
3.7 The high temperature hot air extracted from the furnace is water-cooled and air-cooled, and the water uses circulating water, which improves energy conservation.
IV Structural engineering design of the furnace See Figure 4
4.1 Furnace construction: The furnace is designed to last for more than 15 years, and the furnace is built using GOVMARK (Gomak) technology from the USA. Five-layer structure, when the inner layer is 1300°C, the temperature of the outer layer is room temperature; long service life, the insulation material (wearing parts) of the inner layer is easy to replace. The five-layer structure, from outside to inside, is as follows: the first layer is a steel frame; the second layer is built with red bricks as a periphery; the third layer is refractory high-temperature asbestos; the fourth layer is refractory bricks; the fifth layer contains zirconium refractory high-temperature cotton, with a refractory temperature of 1600°C.
4.2 High temperature resistant materials.
4.2.1 refractory bricks: use temperature for the highest temperature resistance 1750 ℃, long time high temperature resistance 1600 ℃, bulk density 1.0g/cm3, room temperature compressive strength higher than 3.2MPa, 1400 ℃ refired line change of 0.5%, thermal conductivity better than 0.4W/m - K.
4.2.2 industrial refractory binder for bonding: use temperature 1400℃.
4.2.3 furnace high-temperature resistant cotton: using zirconium-containing refractory high-temperature cotton, thickness of 50mm, a long time refractory temperature of 1600 ℃, industrial kiln special insulation materials.
4.3 Material for frame: selection according to "Industrial Furnace Design Manual" (third edition), Chapter 11 - structural parts for furnace, section 3 - steel selection, furnace pillar, side pillar, arch foot beam, force crossbeam and tie rod, etc. choose Q235-A steel, furnace outer wall steel plate choose Q215-A steel. Furnace steel material: not less than Q235; furnace steel plate: thickness ≥ 3mm. horizontal furnace body
material using steel frame, replaceable.
4.4 furnace size: 3000mm (W)*3000mm (H)*1500mm (D).
4.5 furnace steel structure and pipe anti-corrosion treatment: using three layers of coating, all high temperature resistant anti-corrosion coating, the outer layer of black and gray.
Used to determine the burning characteristics of textiles under controlled conditions， the 45°Automatic Flammability Chamber automatically times the flame spread in 0.I second increments from ignition. The time starts when the flame impinges and stops when the sample's trigger string burns through. The flame burns ata45°angle under controlled flame-impingement at the tip of a stainless steel hypodermic needle with automatic flame impingement times of I,5 or 20 seconds available. The flame-imping...
Flammability Tester of Building Material is a device used to measure how easily certain building materials can burn or ignite. It is used to assess the flammability characteristics of different types of construction materials such as drywall, insulation, plastics and timber. The tester measures the rate at which a material combusts when exposed to an open flame from a gas-oxygen burner.
A surface flammability tester is a device that is used to test the flammability characteristics of a surface material. It is typically used to evaluate the potential fire risk of a material by measuring how easily it ignites and how quickly it burns when exposed to a flame or other ignition source.
A flammability tester is a device used to test the flammability of materials, such as textiles, plastics, and other materials.
The definition of a fire-resistive or fire-rated cable is a cable that will continue to operate in the presence of a fire. This is commonly known as a circuit integrity (CI) cable and is 2-hour fire-rated. ... This 2-hour fire-resistive cable is designed for emergency power circuits for fire pumps and emergency generators. Resistance heating wire is used in a variety of applications for generating heat. Household use can be found in toasters, portable space heaters, warming plates and more. Stov...
