• +86 18365346828
  • Pudong Disctirct, Shanghai, China
(PDF) MgO-C Refractories For Steel Ladles Slag Line

(PDF) Slag conditioning effects on MgO-C refractory ...

Download full-text PDF Read full-text. ... ladles' slag line are MgO – C bricks ... On refractories-steel/slag interfaces affected by Marangoni convection, the molten steel penetration was ...

Characterization and post-mortem analysis of Al2O3-MgO-C ...

Oct 01, 2020· 1. Introduction. As smart refractories, the Al 2 O 3-MgO-C refractories (AMCR’s) development has brought a significant evolution in the history of refractories used in the steel industry.These refractories made new way to the steel industry in the 1990s due to their favorable properties, being selected as proper replacements for MgO-C refractories (MCR’s) in the molten metal line …

Corrosion Mechanism of A Density-Reduced Steel Ladle ...

Refractory monolithics for steel ladle linings are typically products with low porosities and high bulk densities. They achieve high temperature, penetration, and corrosion resistance. Despite the high density of these products, which is due to the low porosity of the aggregates, their matrices still exhibit a high amount of pores. Since calcium magnesium aluminate (CMA) has already proven its ...

Development of Refractory Materials for Ladle Lining - RS ...

Development of refractory materials for ladle lining. According to a steel mill, they have 3 types of the ladle. In the order of commissioning, they are 120 t ladle, 150 t ladle, and new 150 t ladle, of which the new 150 t ladle is modified from the original 40 t ladle.

(PDF) Corrosion Mechanism of MgO‐CMA‐C Ladle Brick with ...

MgO – C is the fi rst choice refractory material for the slag line of steel ladles as it exhibits excellent slag penetration resistance due to the nonwetting property of carbon with slag ...

Magnesia Carbon (MgO-C) Bricks | Gita Refractories

MgO-C bricks are used extensively in steel making processes especially in basic oxygen furnaces, electric arc furnaces, lining of steel ladles, etc. MgO-C bricks have dominated the slag line of ladles as they possess superior slag penetration resistance and excellent thermal shock resistance at elevated temperature because of the non- wetting properties of carbon (graphite) with slag, high …

Paper - refractories-worldforum.com

Soc. 33 (1996) 832–838 [5] Xue, J.: Development and application of ultralow- carbon-containing MgO-MgAl2O4-C bricks for ladle slag line. Naihuo Cailiao 45 (2011) 107–109 [6] Ganesh, I.; et al.: An efficient MgAl2O4 spinel additive for improved slag erosion and penetration resistance of high-Al2O3 and MgO-C refractories.

Steel Ladle Al2O3-MgO-C Refractory - RS Kiln Refractory Bricks

Steel Ladle Al2O3-MgO-C Refractory Description With the rapid development of steel smelting technique, especially with the application of continuous casting and out furnace refining techniques, the requirement on ladle refractory material is much higher. So chemical corrosion resistant, scouring resistant, slag erosion resistant, thermal shock resistant and high mechanical strength refractory ...

A Study on the Influence of Steel, Slag or Gas on ...

steel/MgO-C refractory and slag/MgO-C refractory, the corrosion rate was calculated from the change in diameter of the cylindrical specimens. The specimens were rotated for 15 to 120 minutes at speeds of 100 to 400 rpm in the molten slag. The results from the study showed that refractory materials that were impregnated with carbon had a much

Performance improvement of MgO-C refractory bricks by the ...

Dec 01, 2017· Because of its unique advantages and very high demand in the steel industry, MgO-C refractory bricks are used extensively in the steel making processes especially in basic oxygen furnaces, electric arc furnaces, lining of steel ladles, slag line of ladles, etc. , , , , , .

Corrosion of MgO-C Ladle Refractories.

Corrosion of MgO-C Ladle Refractories Temperature (1600—16400) Slag basicity (0.9—2.6) Time (20-100 min) Design cube used in the Box—Behnken response surface experiments. Bodv- ... brick, slag, steel and experimental apparatus are given below. Steel was added to the erueible with the slag to provide a sharp slag—metal

STEEL TEEMING LADLE: Ladle Metallurgical Treatment ...

15 | 24 to 27. April 2016, Cologne, Refractory Technology Part II, Steel Teeming Ladle,· A. Viert auer/ RHI-AG, H. Schröter/ HKM Stahl-Zentrum CAS-OB versus Ladle Wear Aluminothermy heating Splashes and build up of steel and slag on/ into the bell Overheated Slag ( bad stirring and or too long heating)

Key features of alumina/magnesia/graphite refractories for ...

when compared to high alumina and doloma steel lad-dle refractories, but also excellent thermal and mechan-ical properties.4 As a consequence, in the last decade a new class of refractory products based on the Al2O3/ MgO/C system has been successfully applied to several steelmaking processing vessels,5,6 mainly in steel ladles.

Innovation in Steel Ladle Life to 157 Heats at Rourkela ...

proposed working lining pattern of 150T steel ladles was 70% alumina (HA) bricks for the metal zone and magnesia carbon (MgO-C) in slag zone, as suggested by the technology supplier. The steel ladle life during this period was around 40 heats. The procurement of the ladle refractory set was made without any performance guarantee.

Slag/refractory and metal/refractory interactions during ...

SLAG/REFRACTORY AND METAL/REFRACTORY INTERACTIONS 425 Results and discussion Black refractories The Al 2O 3-SiO 2-C refractories have a range of 51 to 61% Al 2O 3, 10 to 16% SiO 2, and 24 to 3% C.The depth of penetration of the refractory by the steel is shown in

1-Ladles.Steel.Brochure A4 Web - | A Global Refractory Leader

The traditional refractory lining for steel ladles, bricks are especially used for severe operating conditions. Inefficiencies ... higher resultant wear within the slag line area. Standard Magnesia Carbon and Alumina Magnesia carbon products within the barrel are the proven technologies for this application.

(PDF) MgO-C refractories for steel ladles slag line

Graphite containing MgO-C refractory system is one of the most important class of consumable refractories in steel making due to their superior chemical inertness to slag, and high thermal shock ...

Corrosion Mechanism of MgO–CMA–C Ladle Brick with High ...

Oct 17, 2019· MgO–C is the first choice refractory material for the slag line of steel ladles as it exhibits excellent slag penetration resistance due to the nonwetting property of carbon with slag, thermal shock resistance, high thermal conductivity, low thermal expansion, and high toughness. 1 Poor oxidation resistance, as well as low strength at high temperatures, is limiting the service life of MgO–C refractories.

Chemical wearing mechanism of refractory materials in a ...

Wearing of the ladle slag line is the biggest refractory material problem with ladles. The purpose of this work was to study the wearing mechanism of refractory materials in a steel ladle slag line.

Improvement of Resistance of MgO-Based Refractory to Slag ...

original MgO-C refractory. The decarburized layer is usually porous. The adhered slag penetrates into the open pores of the refractory. After casting, two layers are found above the decarburized refractory in the wall of a MgO-C lined ladle, viz. a slag-infiltrated layer and the outer slag layer. While the outer layer of the glaze would be ...

Feature Article . . . MgO-C REFRACTORIES FOR STEEL …

Usiminas Steel Plant No. 2 holds 20 ladles with a capacity of 160 t per unit, lined with MgO-C bricks in the slag line (152 mm), Al 2 O 3 -MgO-C bricks in the barrel area (152 mm) and Al 2 O 3 -C

4 High Performance Ladle - Shinagawa

*1 Shaped Refractories R&D Group, ... In general, MgO-C ECONOS are used in the slag line and Al2O3-MgO-C bricks are used in the metal zone of ladles. On the other hand, Al2O3-SiC-C ECONOS are used in the lining of torpedo cars. Fig. 2 ... Applications Steel ladle Steel ladle Torpedo car.

Good Price Fire Magnesite Refractory For Steel Ladle Eaf ...

Good Price Fire Magnesite Refractory For Steel Ladle Quality Magnesium Carbon Bricks Product Description MgO-C Bricks for steel industry products that have excellent spalling resistance, rust resistance. superior resistance to oxidation.It is used for electric furnace, the second ladle etc and is popular in steel-making industry.

(PDF) Corrosion Mechanism of MgO‐CMA‐C Ladle Brick with ...

MgO –C is the first choice refractory material for the slag line of steel ladles as it exhibits excellent slag penetration resistance due to the nonwetting property of carbon with slag, thermal...

Corrosion of MgO—MgAl2O4 Spinel Refractory Bricks by ...

Jan 20, 2005· Microstructural analysis of MgO—MgAl 2 O 4 refractory bricks corroded at 1400–1450°C by calcium aluminosilicate slag reveals secondary spinel, monticellite, merwinite, and MgO as microscopic corrosion products, generally forming in this sequence as the brick is penetrated. The secondary spinel forms an incomplete layer close to (but not at) the MgO grain.

Refractory Magnesia Carbon Bricks for Steel Ladles

Ladle shrouds are used as a tube for flow of molten steel from steel ladle to tundish. They stabilize molten-steel streams and protect molten steel from splashing and being oxidized. This product is pressed refractory functional part, which features superior thermal shock resistance, slag erosion resistance, wear resistance, easy to be ...

(PDF) Characteristics and wearing mechanisms of MgO-C ...

Characteristics and wearing mechanisms of MgO-C refractories for steel ladle slag line. July 2014; Ceramica 60(355):348-365; Authors: F.C. Leite ... Download full-text PDF Read full-text. Download ...

Paper - refractories-worldforum.com

Problems with hydration of used Al-containing MgO-C bricks can be avoided by using Al-Mg alloys in distinct ratios. Apparently Al-additives cannot be recommended in slag zones of ladles with deep-vacuum treatment at high temperatures.Although boron containing additives are in industrial use to some extent, their benefit could not be verified in ...

UDC 699 . 18 - Nippon Steel Corporation

Measures to extend the life of MgO-C bricks for converter lining include slag coating whereby the slag is made to stick to the surface of the lining, and slag control whereby the concentration of MgO in slag is adequately controlled to suppress the elution of refractory constituents to the slag. When damaged, the lining is repaired by

Magnesite Carbon Bricks for Ladle or Converter/ MGO-C Bricks

This brick has been used in the ladle refining slag line and has achieved good results. It is also used in the lining part of AC electric arc furnace, DC electric arc furnace, converter and other components. Applications . Magnesia Carbon Brick has the following applications:-EAF(Electrick arc furnace)-Ladle-Basic oxygen furnace. Specifications

Hotline

+86 18365346828

Address

Pudong Disctirct, Shanghai, China

Mobile Phone

+86 18365346828