Leading provider of global metal & steel prices | Metal Bulletin - Integrated Plant Solutions for Stainless & Special Steelmaking
Process route of stainless steel production Raw Material based on scrap (capacity: 0.4 to 1 mio t/a) Scrap, HBI, DRI FeCrHC Nickel O 2 N 2 /Ar O 2, N 2; Ar Ar Duplex (Stainless Steel) or Carbon Steel Triplex (Stainless Steel) or spout Duplex (Stainless Steel)
Converter steelmaking (Stainless steel) | SMS group
The AOD converter is key equipment in the stainless steelmaking process. An argon-oxygen mixture is being injected into the molten steel through sidewall-nozzles …
Dynamic On-Line Control of Stainless Steel Making in …
A new dynamic control model based on simultaneous mass transfer of C, Cr, and Mn and dynamic heat balance is developed. It allows dynamic adjustment of argon-oxygen ratio. The model is implemented through Level II control system. The total operating period
Process Evaluation of AOD Stainless Steel Making In …
Ashok, K and Sankar, P and Maruthupandian, K (2013) Process Evaluation of AOD Stainless Steel Making In Salem Steel Plant, SAIL. In: Proceeding of the International Conference on Science and Technology of Ironmaking and Steelmaking, Deceer 16-18, 2013, CSIR-NML Jamshedpur.
Ladle refining of liquid metal is a proven technology to produce high quality steel. A Ladle Refining Furnace is used to raise the temperature and adjust the chemical composition of molten metal. Without LRFs, higher tap temperatures are normally required from steel making furnaces due to heat losses during refining with conventional ladles.
AISI | Electric Arc Furnace Steelmaking
The electric arc furnace operates as a batch melting process producing batches of molten steel known "heats". The electric arc furnace operating cycle is called the tap-to-tap cycle and is made up of the following operations: Furnace charging Melting Refining
Refractory Solutions for Stainless Steelmaking
Content AOD Transfer Ladle Teeming Ladle Maintenance The AOD Converter AOD Top Sealing Safety Lining Bottom Ramming Upper Cone, Upper Barrel Slagline, Trunnions Back Fill Tuyere Zone Bottom Pouring Side Steel / StainleSS Steelmaking
Stainless Steel: Digitalized know-how for AOD converter …
Jindal Stainless Ltd. issued the final acceptance certifie for the new level-2-process automation on AOD converter #1 to Primetals Technologies in April 2019. The AOD converter was equipped with a level-1-system and brought into operation by a third party in 2010.
Mathematical modeling of the argon-oxygen …
The critical carbon concentration of decarburization (after which the decarburization changes to become controlled by the mass transfer of carbon in molten steel) for the AOD refining process of austenitic stainless steel in an 18-t AOD vessel is in the range of 0
Steel Making | tncr
D uplex process and triplex process are the most common methods used in stainless steel making. In the processes, AOD (Argon-Oxygen Decarburization), VOD (Vacuum Oxygen Decarburization) and MRP (Metal Refining Process) are key refining devices.
Introduction and classifiion - Stainless steels | Coursera
And such conditions are met by these steel making processes like AOD and VOD. So at the end of AOD, we can obtain around 0.3 percent carbon and also 30 to 50 ppm of sulfur. And by applying this VOD process we can obtain very low content of carbon up to 0.04 percent, and also sulfur can be drastically reduced to as low as around 10 ppm.
What is Vacuum Degassing? - Definition from …
This process is typically performed in a specially designed chaer known as a vacuum degasser. The reduced pressure inside the vessel or chaer causes the gas to become less soluble and separate from the liquefied material. After the vacuum degassing
AOD - Argon Oxygen Decarburization | AcronymAttic
AOD, Argon Oxygen Decarburization, is a process for making stainless steel and other high grade alloys by allowing precise gas argon oxygen decarburization furnace - 2015 China Customs duty & Tax, 2015 China import tariff Customs duty and taxes for argon oxygen decarburization furnace
A Kinetic and Thermodynamic Description of the Steel Making Process …
1 A Kinetic and Thermodynamic Description of the Steel Making Process using Thermo-Calc and the CALPHAD Database TCOX A. N. Grundy 1,3), M. Powell 2), R. Rettig 1), L. Kjellqvist 1), J. Jeppsson 1), A. Jansson 1) and J. Bratberg 1) 1) Thermo-Calc Software
Argon oxygen decarburization (AOD) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminum. After initial melting the metal is then transferred to an AOD vessel where it will be subjected to three steps of refining; decarburization , reduction , and desulfurization .
CN105219923A - A kind of RKEF produces the technique …
The present invention relates to the technique that a kind of RKEF produces ferronickel, ferrochrome and AOD furnace triplex process smelting stainless steel, comprise step: adopt the RKEF technique thick nickelalloy of melting and ferrochrome respectively, and
Efficient Smelting Model of AOD Furnace Steelmaking-- …
WU Kang1,ZHENG Yi1,JIAN Ming1,HONG Jian-guo2(1.Steel-making Plant of Meishan Iron & Steel Corp., Baosteel Group, Nanjing 210039, China; 2.Technology Center of Meishan Iron & Steel Corp., Baosteel Group, Nanjing 210039, China);Production practice 5
How Is Stainless Steel Made? | Metal Supermarkets - …
2016/5/25· Until the 1950s and 1960s, which saw the development of AOD (argon oxygen decarburization) and VOD (vacuum oxygen decarburization), the processes to produce stainless steel were slow and expensive. However, these two developments revolutionized stainless steelmaking and significantly decreased the raw material costs, increased productivity, and improved quality.
The Analysis of the Blowing Process with the Top Lance …
The amount of the Chromium oxidized, and the temperature-increasing speed of the bath is analyzed. The result shows, if the lance gap is set suitably, the 110-three-holes top lance will be the most beneficial to the stainless steel-making in the AOD when the high
12.5.1 Steel Minimills - US EPA
126.96.36.199 Process Description In a minimill, scrap metal is melted and refined in an electric arc furnace (EAF) to make steel products. Generally, molten steel is produced in an EAF and then tapped from the EAF to a ladle. The molten steel is then usually further
AVAILABLE AND EMERGING TECHNOLOGIES FOR REDUCING GREENHOUSE GAS EMISSIONS FROM THE IRON AND STEEL …
Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Iron and Steel Industry Prepared by the Sector Policies and Programs Division Office of Air Quality Planning and Standards U.S. Environmental Protection Agency Research
The steel product for which the cost is shown above is a metric tonne of BOF liquid steel. The cost is for a notional producer - a typical size integrated BOF plant, 3m t/yr, at a Japanese coastal site with its own coke and sinter plant, using imported ore and coal purchased …
Electric Steelmaking Solutions — The Future of Steel
Our process optimization system for EAF supports production of a wide range of steel grades, including carbon, stainless and special steels. The appliion of Steel Expert , a set of metallurgical process models for the optimization of the steelmaking process, leads to fewer steel treatment correction steps, a minimum nuer of downgraded heats, and exact adherence to tight production schedules.
Steelmaking – DecoHomey
Steps In The Modern Steelmaking Process. Primary steelmaking has two methods: BOS (Basic Oxygen Furnace) and the more modern EAF (Electric Arc Furnace) methods. The BOS method adds recycled scrap steel to the molten iron in a converter. At high
Iron & Steel Making | ANT Steel Engineers (Asia) Pvt. Ltd.
IF along with AOD is ideal for Stainless Steel making because of its economics. For alloy steel making recent trend is to route the IF heat through LD converter, LF, VD and CCM with all the latest facilities.