in the event of a fire, the structure of the building may have to withstand the test of heat radiation instead of being directly burned by the flame. in order to simulate this condition, each ladder frame bears a uniform load (same as the aforementioned test), and then directly receives the heat rad

in order to obtain comparative data of the four familiar structural materials exposed to severe fire conditions, darchem engineering co., ltd. (a test laboratory approved and certified by the british national measurement and appraisal system) was entrusted to carry out the test on the cable ladder (

the corrosion-resistant steel was first developed 100 years ago when the effect of adding sufficient chromium in steel to the corrosion resistance of steel was studied. these early chromium-containing steels were very promising. they combined a bright appearance with outstanding corrosion resistance

the economy and safety of stainless steelsince the beginning of the industrial age, the safety of structures and the protection of personal safety have always been extremely important things for engineers. despite the accumulation of two centuries of experience, these issues are still people's main

how to choose piping materials in seawater desalination？the main influencing factors of seawater corrosionseawater is a complex natural balance system, a corrosive electrolyte solution, with high salt content, conductivity and biological activity. therefore, seawater is highly corrosive, and its cor

the demand for water and electricity in desert and arid regions of the world is increasing due to increased population and the expectation of high living standards. de-salination plants that are also power plants use the heat extracted from the generation process to evaporate seawater. the desa

ferritic stainless steelhas been widely used in thermal powerandnuclear power equipment.especially in coastal power plants and polluted media, martly sovling the problems of water vapor corrosion, precipitation and corrosion of copper nickel alloy, ferritic materials replace copper, titanium and aust

in late february, hadeed pakistan started a new cold rolling plant in lahore, punjab, northeast pakistan. the plant has a capacity of 300,000 tons per year and is equipped with 6-hi cold rolling mills, pickling lines, annealing lines and packaging equipment.  the finished products include cold

from 2017 to 2019, turkey imported a total of 11,768 tons of bauxite, and foreign exchange expenditure was 46.32 million us dollars. it is estimated that 25,862 tons of bauxite will be imported in 2020, and foreign exchange expenditure will be us$11.6 million.  by then, the cumulative import vo

it was learned from delong group that on march 29, 2020, the first molten iron of indonesia's dexin iron and steel blast furnace was poured into the ladle; on march 31, the converter was officially opened for production. the first molten steel was successfully smelted at 9:18 on the same day. the co