Compared with small-scale measurement methods, large-scale test methods such as “Human†can provide more comprehensive information such as heat protection and heat shrinkage of work clothes, but its testing cost is relatively low and the operation is more complicated. There are many international organizations and standardization organizations. Work has begun on the development of thermal protection workwear testing and set the appropriate standards. “Fireman†is a body of a simulated firefighter or high-temperature worker equipped with thousands of temperature sensors. The temperature measured by each temperature sensor represents the surface temperature of a part of human skin, and he uses “Firemanâ€. The technology is also equipped to simulate high-temperature radiation environment or fire field conditions, combined with computer data collection, processing and image display technology, to evaluate the overall thermal protection performance of workers' overalls garments, which can not only meet the specific use conditions of thermal protective clothing, but also Quickly, intuitively, qualitatively and quantitatively displays “staff†burn distribution images. This website solemnly declares: This article is the reprint of the online media, only represents the author's point of view, has nothing to do with this site. If news articles and comments infringe your legal rights, please call us and we will handle it in a timely manner.
The wire rope is a helical wire bundle made of steel wires with mechanical properties and geometric dimensions that meet the requirements. The wire rope is composed of steel wire, rope core and grease. A steel wire rope is a rope that is twisted into strands from multiple layers of steel wires, and then a certain number of strands are twisted into a spiral shape with the core as the center. In material handling machinery, it is used for lifting, traction, tensioning and carrying. The steel wire rope has high strength, light weight, stable work, not easy to break the whole rope suddenly, and reliable work. In 1834, European Olubert invented the world's first steel wire rope (smooth steel wire rope).
Wire ropes can be classified according to the material, surface condition, twisting method and purpose of the wire rope. Galvanized Wire Rope,Steel Wire Rope For Oil Field,Lifting Wire Rope,Traction Wire Rope Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaous.com
At present, there are mainly three kinds of "Fireman" test systems, namely the DuPont Thermo-Man Dummy, PyroMan "Fireman" of North Carolina State University and the "Fireman" test device of Alberta University in Canada. These devices can all be well-planned outside the open fire environment, the general simulation of heat source heat energy is 84kW/m2, which is an evaluation value of the heat flow received by firefighters in the outer layer of working clothes in the fire environment. In fact, firefighters are more exposed to the heat source than the value of the heat flow.
Classified by material
1. Carbon steel wire rope is made by twisting high-quality carbon structural steel wire as raw material.
2. Stainless steel wire rope, manufactured and twisted with stainless steel wire as raw material.