Open hearth furnace

Tapping open hearth furnace, Fagersta steelmill, Sweden, 1967.

Open hearth furnaces are one of a number of kinds of furnace where excess carbon and other impurities are burnt out of pig iron to produce steel. Since steel is difficult to manufacture due to its high melting point, normal fuels and furnaces were insufficient and the open hearth furnace was developed to overcome this difficulty. Compared to Bessemer steel, which it displaced, its main advantages were that it did not expose the steel to excessive nitrogen (which would cause the steel to become brittle), was easier to control, and it permitted the melting and refining of large amounts of scrap iron and steel.

单词	Open hearth process
释义	Open hearth process 英语百科 Open hearth furnace Open hearth furnaces are one of a number of kinds of furnace where excess carbon and other impurities are burnt out of pig iron to produce steel. Since steel is difficult to manufacture due to its high melting point, normal fuels and furnaces were insufficient and the open hearth furnace was developed to overcome this difficulty. Compared to Bessemer steel, which it displaced, its main advantages were that it did not expose the steel to excessive nitrogen (which would cause the steel to become brittle), was easier to control, and it permitted the melting and refining of large amounts of scrap iron and steel.
随便看	alkaline semichemical pulp的意思 alkaline sensitivity的意思 alkaline series的意思 alkaline serozem的意思 alkaline silicate的意思 Alkaline Single Cell Gel Electrophoresis Assay的意思 alkaline sintering的意思 alkaline sky blue的意思 alkaline soaker的意思 alkaline soapy的意思 Alkaline soil的意思 alkaline soil plant的意思 Alkaline soils的意思 alkaline solubility的意思 alkaline solution的意思 alkaline, solutions的意思 alkaline splitting的意思 alkaline spot的意思 alkaline spring的意思 alkaline steeping agent的意思 alkaline storage battery的意思 alkaline storage cell的意思 alkaline strippable resist的意思 alkaline substance的意思 alkalinesubstance的意思

Open hearth process

Open hearth furnace