(nickel) can occupy substitutional sites, producing martensites which are soft and ductile. In carbon-containing steels, the appearance of the martensite changes with carbon in the interstitial sites. Martensite is not…
Read More…cases, site plans are to be drawn up following a series of desk studies and site investigations. Structural drawing – Structural drawing focuses on the structural aspect of the building….
Read More…desired conditions or properties, such as dimensional or micro-structural stability. When the treatment involves the transformation of retained austenite, it is normally followed by a tempering treatment. Columnar structure –…
Read Moreconverter, leading to, on mixing, overall bath refinement. These different sites are shown schematically in Fig 4. Fig 4 Reaction sites in the basic oxygen steelmaking It is to be…
Read More…the martensite, while tempering at high temperature also affects the retained austenite. After one tempering at a high temperature the microstructure consists of tempered martensite, newly formed martensite, some retained…
Read More…slag into the taphole and the runner, then high strength, high alumina castables are used for the precast runner. The high alumina runner generally has higher life because of improved…
Read More…the plant site. The advantages of modular construction are (i) improved quality control, (ii) reduced construction cost, and (iii) lesser need for skilled personnel at the plant site. Some of…
Read More…volume collects to overflow a slag dam and run down the slag runner. At the end of the tapping, the slag runner dam height is lowered to drain off most…
Read More…sizings can be achieved by crushing the as-received raw-material briquettes or fragments in coarse crushers, such as jaw crushers, gyratory and cone crushers. Examples of intermediate pulverizers are cage disintegrators…
Read More…bricks in these categories contain both magnesite and carbon, the term ‘magnesite-carbon refractory’ is typically used for bricks with carbon contents greater than 8 %. Pitch impregnated and pitch-bonded magnesite…
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