the corex process is a smelting reduction process created by siemens vai as a more environmentally friendly alternative to the blast furnace.presently, the majority of steel production is through the blast furnace which has to rely on ever decreasing amounts of coking coal.
forging is a manufacturing process involving the shaping of metal using localized compressive forces. the blows are delivered with a hammer often a power hammer or a die.forging is often classified according to the temperature at which it is performed: cold forging a type of cold working , warm forging, or hot forging a type of hot working .for the latter two, the metal is heated, usually .
advantages and disadvantages advantages. shell molding can be completely automated for mass production. the high productivity, low labor costs, good surface finishes, and precision of the process can more than pay for itself if it reduces machining costs.
electrochemical grinding also has a few disadvantages as well. the system consists of the anode workpiece and the cathode grinding wheel. in order to create those conditions both the workpiece and the grinding wheel must be conductive. this limits the types of workpiece materials that are suitable for electrochemical grinding. another .
moment-resisting frame is a rectilinear assemblage of beams and columns, with the beams rigidly connected to the columns.. resistance to lateral forces is provided primarily by rigid frame action – that is, by the development of bending moment and shear force in the frame members and joints. by virtue of the rigid beam–column connections, a moment frame cannot displace laterally without .
tensile testing, also known as tension testing, . each system has advantages and disadvantages; for example, shoulders designed for serrated grips are easy and cheap to manufacture, but the alignment of the specimen is dependent on the skill of the technician. on the other hand, a pinned grip assures good alignment.
in structural engineering, the tube is a system where, to resist lateral loads wind, seismic, impact , a building is designed to act like a hollow cylinder, cantilevered perpendicular to the ground. this system was introduced by fazlur rahman khan while at the architectural firm skidmore, owings & merrill som , in their chicago office.
engineers have also noted some disadvantages of rigid frame bridges. the placement of steel reinforcing bars rebars can be very difficult and the forming/placement of the concrete is complicated. furthermore, rigid frames are statically indeterminate and the analysis is more challenging than that of simply supported structures.
advantages and disadvantages. the main advantages of a torsion bar suspension are soft ride due to elasticity of the bar, durability, easy adjustability of ride height, and small profile along the width of the vehicle. it takes up less of the vehicle's interior volume than coil springs.
in some sections of the country, politics disadvantages are frowned upon because they link to virtually every affirmative plan, destroying the on case debate and focusing solely on the disadvantage. supporters, however, say the politics disadvantages are 'real world' and provide education on how bills are passed and politics in general.
diamond particles in the grinding wheel remove any non-conducting organic matter, such as algae, before electrochemical grinding begins. advantages and disadvantages. one of the key advantages of electrochemical grinding is the minimal wear that the grinding wheel tool experiences.
advantages and disadvantages. steel dam proponents claimed some advantages: steel fabrication techniques, even at the turn of the 19th century, allowed for faster and cheaper construction than masonry; the structure is statically determinate allowing precise calculations of load and member strength needed
parallel running is a strategy for system changeover where a new system slowly assumes the roles of the older system while both systems operate simultaneously. this conversion takes place as the technology of the old system is outdated so a new system is needed to be installed to replace the old one. after a period of time, when the system is proved to be working correctly, the old system will .
globalization or globalisation is the process of interaction and integration among people, companies, and governments worldwide.as a complex and multifaceted phenomenon, globalization is considered by some as a form of capitalist expansion which entails the integration of local and national economies into a global, unregulated market economy. .
advantages and disadvantages. bending is a cost-effective near net shape process when used for low to medium quantities. parts usually are lightweight with good mechanical properties. a disadvantage is that some process variants are sensitive to variations in material properties.
permanent mold casting is a metal casting process that employs reusable molds 'permanent molds' , usually made from metal.the most common process uses gravity to fill the mold, however gas pressure or a vacuum are also used. a variation on the typical gravity casting process, called slush casting, produces hollow castings.common casting metals are aluminium, magnesium, and copper alloys.
compared to steel wheel on steel rail, the advantages of rubber-tyred metro systems are: smoother rides with little jostling around . faster acceleration, along with the ability to climb or descend steeper slopes approximately a gradient of 13% than would be feasible with conventional rail tracks, which would likely need a rack instead.
hot rolling is a metalworking process that occurs above the recrystallization temperature of the material. after the grains deform during processing, they recrystallize, which maintains an equiaxed microstructure and prevents the metal from work hardening. the starting material is usually large pieces of metal, like semi-finished casting products, such as slabs, blooms, and billets.
basic oxygen steelmaking bos, bop, bof, or osm , also known as linz–donawitz-steelmaking or the oxygen converter process is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel.blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.the process is known as basic because fluxes of burnt lime or .
steel wire armoured cable swa is a hard-wearing power cable designed for the supply of mains electricity. it is one of a number of armoured electrical cables – which include 11 kv cable and 33 kv cable – and is found in underground systems, power networks and cable ducting.
a hollow structural section hss is a type of metal profile with a hollow cross section.the term is used predominantly in the united states, or other countries which follow us construction or engineering terminology. hss members can be circular, square, or rectangular sections, although other shapes such as elliptical are also available.