5 edition of Desulfurization of iron and steel and sulfide shape control found in the catalog.
Desulfurization of iron and steel and sulfide shape control
William G. Wilson
|Statement||William G. Wilson and Alex McLean.|
|Contributions||McLean, Alex, 1936- joint author.|
|LC Classifications||TN707 .W54|
|The Physical Object|
|Pagination||v, 161 p. :|
|Number of Pages||161|
|LC Control Number||80069613|
Steelmaking Desulfurization Process. Iron and steel metallurgy principle, Beijing: Metallurgical industry press, ().  F Y Yan. Optimization of powder technology and practice of magnesium based desulfurization. Iron and steel Vol. 64(), p Author: Hui Li, Jing Long Liang. Desulphurization of iron from the blast furnace is a well-established technology. There have been many studies on the desulfurization of hot metal and steel by injection of powdered agents in the literature [1–7]. The desulfurization treatments based on the injection either of mixtures of various powders or previously melted slags aim to Cited by: 5.
subsequently improved by optimizing each production step, i.e. pig iron production, pig iron treatment, scrap selection, oxygen steel making, tapping, ladle treatment, tundish metallurgy and continuous casting. Some of these processing steps will be discussed in the following sections. Desulfurization and Sulfide Shape Size: KB. Product Details Calcium metal granule or ca granule. Main application. Usually been used in cored wire industry, as Refinement of lead alloys (especially for batteries), deoxidizing and cleaning steel, desulfurization and shape control of alumina and manganese sulfide inclusions, and a "getter" for residual gases in vacuum tubes.
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Desulfurization of iron and steel and sulfide shape controlCited by: Directionality of mechanical properties—such as toughness and bend formability—is typical of hot rolled steels processed on modern, hot strip mills. In aluminum killed steels, directionality results mainly from elongated (type II) manganese sulfide by: Iron Preparation Hot Metal Desulfurization - Sulfur in the molten iron is sometimes reduced before charging into the steelmaking furnace by adding reagents.
The reaction forms a floating slag which can be skimmed off. Desulfurization may be performed in the hot metal transfer (torpedo) car at a location between the blast furnace and.
Hot metal desulfurization will be treated in a separate book in this book series “Hot metal refining processes.” For more detailed chemistry of sulfur removal and metal and the hot metal sulfur control, please refer to Biswas  and Babich et al. . tion is conditioned by high sulphur activity in pig iron METALURGIJA 47 () 4, J.
KIJAC et al.: DESULPHURIZATION OF STEEL AND PIG IRON Figure 1. Course of degree of desulphurisation as depen-ding on the desulphurisation mixture consum-ption per ton of pig by: 3.
ABSTRACT A solid magnesium sulfide is formed during magnesium desulfurization of molten metal. Iron and. Alloy Recovery and Steel Desulfurization problems with Slag Conditioning and Modification, Steel Desulfurizing and Sulfide Shape Control Maintenance and Reliability problems with a large, well equipped, Fabrication and Machine Shop.
For desulfurization process, wet desulfurization and adsorption process are two promising ways. Under wet alkaline conditions, hydrogen sulfide could react with hydrated iron oxides, and form Fe 2 S 3, while the reaction rate will decrease with the increase of iron sulfide. Then, the sponge iron can be regenerated after exposing to the atmosphere, and iron sulfide is converted into iron oxide and elemental sulfur.
ESM has a solution to Alloy Recovery, Steel Desulfurization and Steel Cleanliness Problems. In order to achieve target alloy levels it is critical to consistently first reduce slag oxides to predefined low levels. ESM Group Inc. can assist in this process through the application of its products and know how.
iron units from the furnace are changed into a salable high quality steel product. Ladle refining implies the following: • Deoxidation and alloying of the steel • Temperature and composition homogenization • Desulfurization or resulfurization of the steel • Improved steel cleanliness; inclusion flotation and sulfide and oxide shape controlFile Size: KB.
is present in solid steel as manganese sulfide (MnS) inclusions. Sufficient manganese must be present in the steel to prevent the formation of iron sulfide, which is highly detrimental to hot workability and leads to severe cracking during hot rolling (hot shortness).5/5(1).
Desulphurization of pig iron using calcium carbide based reagents C. BRODRICK SA Calcium Carbide Use of calcium carbide based reagents is a long established practice for the desulphurization of pig iron/hot metal resulting in the removal of the sulphur from the molten metal as calcium sulphide into the slag floating on the molten metal Size: 1MB.
ISBN: OCLC Number: Notes: Appendix (p. ): Technical papers on desulfurization and sulfide shape control. Description. Brittleness of steel at hot metal forming operations due to the presence of low-melting iron sulfides segregated at grain boundaries is called hot shortness.
In order to prevent formation of low-melting iron sulfide manganese (Mn) is added to steel to a content not less than %.
Steel desulfurization in a gas-agitated ladle. Steel desulfurization is usually developed in a gas-stirred ladle. Different configurations of the gas injection system are adopted and that can affect the efficiency of the process. In the present case, the configuration considered was used in a Brazilian steelmaking : Lucas Teixeira Costa, Roberto Parreiras Tavares.
system. This book provides basic information covering every aspect of iron and steel production as well as a practical aid for workers engaged in the field. After an introduction that deals with the history and production of iron and steel, the rest of the book examines their physical properties and metallurgy.
Since the conditions of product or material use are outside of ASM's control, when an unfamiliar iron and steel is encountered. From this book, the reader will find chemically similar materials, refer- Molybdenum/molybdenum sulfide steel Cast iron desulfurization is performed during the manufacture of ductile iron castings in order to obtain spherical graphite morphology 1,2.
Several reagents are employed to remove sulfur, such. sulfur steel. For this reason, the need for preliminary dephosphorization and desulfurization of molten pig iron has increased. With respect to desulfurization, a variety of preliminary desulfurization processes have already been developed and put into practice.
The principle involves selective oxidation of magnesium from the molten alloy into mixed chloride salt electrolyte and simultaneous deposition at the cathode-electrolyte interface. Magnesium is recovered in the form of salt-coated globules, which might be useful in ferrous desulfurization by:.
In the case of steel slags, the valuable entrained steel i s As shown in table 1, total sales of d omestically produced iron recovered by the processor and returned, at below scrap prices, and.Desulfurization in Steelmaking Steelmaking basically involves two consequential processes: an oxidation process performed in the furnace, followed by a reduction (refinement) process performed in the ladle.
Ladle metallurgy objectives including homogenization, vacuum degassing, deoxidation, temperature adjustment, alloying and refining (including desulfurization) are mostly performed in. Nickel Calcium 6% is useful for final deoxidation, sulfide inclusion shape control, and desulfurization. Its addition improves the melt fluidity and enhances the machinability.
These characteristics facilitate the hot working of cast steel ingots. NiCa also increases the resistance to stress fracture and : KBM Affilips.