stainless steel cupola bottom slag method

Balancing Your Cupola Operations | Modern Casting - Cupola Furnace Slag: Its Origin, Properties and Utilization

In the primary process, crude steel is produced in two ways. In the first method, the iron is produced from ore in the BF, thus, generating BF slag (BFS). BBOF slag (BOFS) is produced in the steelmaking process by using the molten iron coming from the BF. In the second method, slags are generated in the scrap-based steel industry.A composition and method is disclosed for fluxing and fluidizing the slag in an acid-operated cupola, the method comprising adding to the charge therein a fluxing material effective to provide, by weight analysis of the slag, 30-42% CaO, 41-44% SiO 2, 7-15% Al 2 O 3, 0.5-4.0 TiO 2, 1.6-3.2% MnO, less than 0.05% P 2 O 5 and less than 1% sulfur.

Rapid analysis method for stainless steel slag - PubChem - Stabilization of Stainless Steel Slag via Air Granulation

The ratio of iron filings, ferrosilicon, silicon slag for cupola and ferromanganese is 1∶0.07∶ 0.2:0.04. The invention has the following advantages and positive effects: 1. Because waste iron filings and cupola silicon slag are used as raw materials and coke foam is used as carburizer, the production cost of casting can be greatly reduced.The slag in a molten state formed at a step of refining stainless steel is adjusted such that the slag has a basicity in the range of 1.3-4.0, and the slag is mixed with a sulfur-containing material wherein the sulfur is zero or minus in valence, thereby setting the concentration of sulfur in the slag to be not less than 0.2% by weight. The slag is so modified that Cr6+ is substantially ...

cupola furnace slag aerated block stainless steel - Deriving Value From Waste: Cupola Furnace Slag As A Solid …

Water absorption (%) 2.653 . 0.5 . 91 . 92 . 2.3 Stainless steel slag waste 93 The stainless steel slag waste used in this investigation was obtained from a producer of 94 ferritic stainless steel produced by a steel plant Acerinox in Algeciras, Cádiz, Spain. The 95 steel slag is produced during the direct reduction of iron in an electric arc furnace. 96 Two different …The high consumption of natural resources in the industrial sector makes it necessary to implement measures that enable the reuse of the waste generated, seeking to achieve circular economy. This work assesses the viability of an alternative to the use of CEM III B 32.5 R cement in mortars for the internal coating of centrifugally spun cast iron pipes for …

Use of stainless steel slag as aggregate in concrete - METHOD OF FLUXING AND FLUIDIZING SLAG IN A CUPOLA

8600 Rockville Pike, Bethesda, MD, 20894 USA. Contact. Policies. FOIA. HHS Vulnerability Disclosure. National Library of Medicine. National Institutes of Health. Department of Health and Human Services.Process the stainless steel slag to recover the Ferronickel alloy.If any inquiry, please contact us at:Email: [email protected]: +86Websit...

KR100530197B1 - method for treating stainless steel refining slag - Cupolas & Weathervanes | Metal Exteriors

Best result is achieved for K-BOP slag at 7% crystal water content, and the stabilized stainless steel slag after 3 months aging period becomes equivalent to blast furnace slag in its quality ...Steel manufacturing produces a significant amount of different slags (10–15% by weight of the produced steel) (Proctor et al. 2000).It can be categorized as carbon steel slag and stainless steel slag (SSS) according to the type of steel, and as pretreatment slag, basic oxygen furnace slag (BOFS), electrical arc furnace slag (EAFS), ladle refining slag (LFS), …

Air-cooled stainless steel slag - Mineral Products Association - synthesis of sic by bulmilling method

A method of fluxing and fluidizing the slag in a cupola by adding to the charge therein a fluxing material comprising, by weight percentage relative to the metal charge, 3-5% CaCo 3 (limestone), 3-5% MgCO 3.CaCO 3 (dolomite), and 1-2% Na 2 CO 3 (fused soda ash). This fluxing and fluidizing material is used for operating a basic cupola and is used in amounts ranging from …The Rational method is appropriate for estimating peak discharges for small drainage areas of up to about 200 acres (80 hectares) with no significant flood storage. The method provides the designer with a peak discharge value, but does not provide a time series of flow nor flow volume. Anchor: #i1469973.

Stainless Steel Slags [12] — Matairial - aireal-materials - Cupola silicon slag - FerroEast

The present invention is a method of making porcelain plate (brick) with chromium slag, clay, other conventional ceramic raw material and the industrial residue that is rich in acidic oxide.The content of chromium slag (weight percent) is 5-70%, and at 1050-1300 ℃ roller-way roasting in kilns, the chromium slag porcelain plate of making has the good physics of special color …An EAF produces steel by the melting of recycled steel scrap, using heat generated by an arc, created by a large electric current. Lime added (as flux) combine with silicates and oxides to form liquid slag. The EAF slag has a lower density than steel and therefore floats on top of the molten steel. Once the steel has been tapped into a ladle ...

KR100530197B1 - method for treating stainless steel … - Best Methods for Welding Stainless Steel (With PDF)

Slag analysis is put into terms of basicity. A typical target basicity for North American cupola operations is 0.5-0.6, although some very good operations may be as low as 0.3 or as high as 0.8. Whatever number your facility targets, you should be hitting it consistently. This target basicity is the point where you have balanced the composition ...A cupola furnace is the most frequently used furnace aggregate for cast iron production. A by-product of the production of cast iron in cupola furnaces is cupola slag. Its amount is 40–80 kg per 1 tonne of the produced cast iron, and that is one of the reasons why this material is not as favoured as, for example, the blast-furnace slag. The purpose of this article …

Physical-Mechanical Properties of Cupola Slag Cement Paste - CA1198900A - Method and apparatus for treating liquid metal in …

COPPERVEIN weathervanes. These are real working weathervanes. They are all made with pride in the good old USA by a small family business from strong, 16-gauge steel. The top of the weathervane pivots on a heavy-duty stainless steel pin. The wind-cups have a sealed ball bearing that will spin with the slightest breeze.Stainless Steel Welding Characteristics By definition, stainless steels are iron-base alloys containing 10% or more chromium, which imparts to the metal the corrosion-resistant properties for which stainless steels are so highly regarded. The chromium content may be increased and other alloying elements added or adjusted to meet specific end-

US Patent for Method for the treating stainless steel refining slag - Stainless Steel Slag Fundamentals – From Furnace to Tundish …

The present invention adjusts the slag generated in the refining process of stainless steel to a basicity of 1.3 to 4.0, and then mixes the sulfur-containing material containing zero-valent or negative valence sulfur with the slag in the molten state to adjust the sulfur concentration of the slag. Provided is a method for treating stainless steel refined slag that is 0.2% by weight or …US-3985546-A chemical patent summary.

Method of fluidizing acid cupola slag - Patent US-3985546-A - High-capacity adsorbents from stainless steel slag for the control …

An attempt has been made to examine the effectiveness of cupola slag, as a partial substitute to fine aggregates, on the mechanical and durability properties of concrete. Fine aggregate was replaced by cupola slag at five different percentages (0%, …229910001220 stainless steel Inorganic materials 0.000 description 3; ... United States Steel Corp: Bottom-pour teeming vessel with sliding gate and pouring tube CH478613A (de) ... Method for retaining slag during the discharge of molten metal from a vessel ES8405444A1 (es)

CN1262509C - Method for treating stainless steel refining … - stainless steel cupola bottom slag method

In stainless steel production, slag from argon oxygen decarburization (AOD) converters is dumped on to the ground and then slowly cooled. The slag undergoes phase transformation from β-dicalcium silicate (β-C2S) to γ-dicalcium silicate (γ-C2S) at approximately 500 °C to 450 °C, resulting in slag volume expansion, disintegration, and dust generation. The …The invention provides a method for treating a stainless steel refining slag which comprises treating a slag generated in a refining process for stainless steel so as for the slag to have a basicity of 1.3 to 4.0 and then mixing the slag in molten state with a substance containing a sulfur having a valency of zero or a negative value in an amount such that the slag has a sulfur …

Stainless steel slag recovery - YouTube - WELDING OF STAINLESS STEELS AND OTHER JOINING …

synthesis methods using vapor deposition process can only produce small amount of sample, mass production has not been achieved yet. Large-quantity production of ZnO nanowires needs to be realized for large-scale property and application studies. One of the promising approaches to the large scale synthesis is a ball-milling and annealing method.Stainless Steel Slag - Sand. Steel slags are a by-product of stainless steel production that can be used to create a concrete like building material (carbinox carbstone). Two initiatives (VITO in cooperation with ORBIX) invented a process to make this concrete-like material, from steel slags, that captures CO2 in the production process.

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