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…
Integrity of technical information. Requirements for equipment drawings are complete, complete, applicable, can guide the operation of equipment, inspection and maintenance, spare parts preparation, etc. Convenient, reliable and safe operation of the equipment. The instrumentation, lubrication, transmission parts, sliding parts, safety devices and other important parts of the equipment are…
After several years running, steel mills have to reform production process and equipment in order to gain high competitive power and own advantage. One the hand some tricky problems can be solved through revamping works, more importantly, the production capacity can be enhanced and the product mix is more reasonable.…
Carbonization method of steel slag is based on the latest scientific research technology of Columbia University, steel slag can be treated and the final formation of high-purity calcium carbonate, iron-containing materials and other products. High-purity calcium carbonate can be used in a number of industries such as paper and plastics, reducing the mining and…
