enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Steelmaking - Wikipedia

   en.wikipedia.org/wiki/Steelmaking

   Steelmaking is the process of producing steel from iron ore and/or scrap. Steel has been made for millennia, and was commercialized on a massive scale in the 1850s and 1860s, using the Bessemer and Siemens-Martin processes. Two major commercial processes are used.

3. Basic oxygen steelmaking - Wikipedia

   en.wikipedia.org/wiki/Basic_oxygen_steelmaking

   U.S. Steel and Bethlehem Steel introduced the oxygen process in 1964. [3] By 1970, half of the world's and 80% of Japan's steel output was produced in oxygen converters. [3] In the last quarter of the 20th century, use of basic oxygen converters for steel production was gradually, partially replaced by the electric arc furnace using scrap steel ...

4. Blast furnace - Wikipedia

   en.wikipedia.org/wiki/Blast_furnace

   The downward flow of the ore along with the flux in contact with an upflow of hot, carbon monoxide-rich combustion gases is a countercurrent exchange and chemical reaction process. [3] In contrast, air furnaces (such as reverberatory furnaces) are naturally aspirated, usually by the convection of hot gases in a chimney flue.

5. Flow process chart - Wikipedia

   en.wikipedia.org/wiki/Flow_process_chart

   The flow process chart is a graphical and symbolic representation of the activities performed on the work piece during the operation in industrial engineering. [1]

6. Bessemer process - Wikipedia

   en.wikipedia.org/wiki/Bessemer_process

   The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron.

7. Continuous casting - Wikipedia

   en.wikipedia.org/wiki/Continuous_casting

   Continuous casting, also called strand casting, is the process whereby molten metal is solidified into a "semifinished" billet, bloom, or slab for subsequent rolling in the finishing mills. Prior to the introduction of continuous casting in the 1950s, steel was poured into stationary molds to form ingots. Since then, "continuous casting" has ...

8. List of manufacturing processes - Wikipedia

   en.wikipedia.org/wiki/List_of_manufacturing...

   This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Manufacturing processes This section does not cite any sources.

9. Direct reduced iron - Wikipedia

   en.wikipedia.org/wiki/Direct_reduced_iron

   Direct reduction processes can be divided roughly into two categories: gas-based and coal-based. In both cases, the objective of the process is to remove the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust, etc.) in order to convert the ore to metallic iron, without melting it (below 1,200 °C (2,190 °F)).