Presently in steel sector, there are a batch of crucial technologies of green production under developing, mahufacturing process of steel plants shall be more green and low emission, that greatly surroundings and society. 1. High proportion of rich hydrogen sintering technology 2. Low carbon iron ore sintering technology 3. High proportion of pellets…
More and more extreme weather events are a challenge that human beings have to face, to reduce energy consume and carbon emission on various industries has been the most countries’ consensus, especially steel enterprises should do much effort to raise energy efficient and realize green production. The following technologies can be popularized widely…
Tungsten steel is a sintered composite material containing at least one metal carbide. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide and tantalum carbide are common components of tungsten steel. The grain size of the carbide components (or phases) is usually between 0.2 and 10 microns, and the carbide grains…
Quenched steel is a medium carbon steel with a carbon content of 0.3-0.6%, generally with this type of steel parts required to have good overall mechanical properties, that is, in maintaining high strength and at the same time has good plasticity and toughness, is the most widely used structural steel…
Rolling Parts Rolling is the processing of metal billets through the gap between a pair of rotating rolls (various shapes) to deform the material, mostly used to produce bars, wire rods, profiles, plates and tubes. Rolling can destroy the casting organization of the ingot, refine the grain of steel, and…
There will remain some residual elements in final steel product through scrap melting process. Zn, Pb, Sb and other residual elements have high vapor pressure and be easily removed by evaporation at steelmaking temperature. Cu, Sn and other elements are difficult to remove by normal steelmaking methods because their oxidation potential energy is…
Refractory metals are nickel-based alloys, titanium alloys, tool steel, special stainless steel and other varieties,its deformation resistance is two to three times that of steel, with good fatigue resistance, corrosion resistance and high-temperature performance, are widely used in aerospace, defense, nuclear power, medical and other fields, is the key material necessary…
Hydrogen is the most significant energy to green development of iron & steel industry. The mainstream production routines of hydrogen are to use fossil energy (coal, natural gas, petrol), renewable energy (solar, wind, water) and nuclear energy. Hydrogen production by electrolysis of water is mostly done by electrolysis of aqueous solutions of caustic potash…
What is Weathering Steel? Weathering steel is a kind of low alloy steel between common steel and stainless steel, a small amount of Cu, P, Cr, Ni and other elements is added into carbon steel, that forms a protective layer on the surface of the metal matrix, thus its atmospheric…
Rolling steel heating furnace is one of the main energy-consuming equipment in the rolling line, and through the comprehensive use of energy-saving technologies can improve energy utilization and reduce production costs. Step heating furnace can consider the following energy-saving methods. Air storage combustion technology The use of air storage combustion…
