Troubleshooting sheet metal defects Part II
· The molten metal is poured into a ceramic tundish and the liquid flows through a ceramic nozzle and into the continuous casting machine or ingot mold. The turbulent flow increases the risk of ceramic particles being dragged into the solidifying product. Once these particles are in the slab or ingot they cannot be removed.
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The problem and solution of bar four-cutting bar wire
The processing precision of the rolling groove is not high. This is mainly related to the material of the roll the wear and repair accuracy of the forming tool in the repair workshop and the processing method. There is a problem with the material shape control of the 12-16 sorties.
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System and method for continuous casting of molten material
An apparatus for continuous casting of molten material includes an elongate tube of electrically conductive material having an inner and an outer wall defining a molding cavity therein the inner and outer walls having a first end having an inlet for receiving the molten material and a second end having an outlet for removing a solidifying billet formed from the molten material an electrical
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Solution to Environmental Protection Problems of
· Solution to Environmental Protection Problems of Intermediate Frequency Furnace 1. Dust removal of intermediate frequency electric furnace Since the charge of induction heating furnace usually contains dust and oil soot will rise from the furnace mouth when the charge is added to the furnace. If the charge contains zinc-plated materials and
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Defects in Continuous Cast SteelsIspatGuru
· Defects in Continuous Cast Steels. satyendra December 11 2014 0 Comments continuous casting cracks Defects inspection mould seconday cooling surface defects Tundish Defects in Continuous Cast Steels. Continuous casting (CC) is the process which converts liquid steel into a solid product mainly in the form of slab (either thick or thin) bloom or billets.
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· Continuous casting is a process used to continuously cast various alloys into billets Direct Chill Casting (DCC) for further processing such as for extrusion or to provide a continuous supply of form to be cut off and processed. The molten metal is poured into a tundish which provides a continuous and controlled flow of metal into a water
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Dry and inorganic tundish coating refractoryTechnische
Dry and inorganic tundish coating refractory. The immense growth of global steel production market demand for higher quality steels and increased competitiveness in world markets has stimulated the continuous improvement of the continuous casting process. As the casting process has evolved the need for higher performance tundish refractory
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Controlling Slag Defects Insoluble Buildup in Melting and
· • Reduced material costs via less refractory patching extended campaigns for the ladle refractories • Improved consistent magnesium recoveries and reduced magnesium ferrosilicon consumption. In addition to being used to keep ladles clean and free of slag buildup incorporating 1-1.5 lbs. of flux has improved the inductor life of pressure
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Numerical Study of Turbulent Flows and Heat Transfer in
This chapter describes the numerical simulations of a coupled industrial scale of the tundish and continuous casting process. The governing equations are presented and the numerical procedure is discussed in a common framework. The coupled solutions are presented for the transient turbulent flows within the tundish solidifying zone and extracting regions with the coupling phenomena of heat
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Melting Remelting and Casting for Clean SteelCampbell
· Continuous casting methods all have a well‐known series of vulnerable entrainment locations 1 but these are generally much less damaging than those experienced during ingot casting which is still widely used for special steels and nickel alloys. This paper is an evaluation of the serious issues introduced by turbulence mechanisms and
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Melting Remelting and Casting for Clean SteelCampbell
· Continuous casting methods all have a well‐known series of vulnerable entrainment locations 1 but these are generally much less damaging than those experienced during ingot casting which is still widely used for special steels and nickel alloys. This paper is an evaluation of the serious issues introduced by turbulence mechanisms and
Get Price
System and method for continuous casting of molten material
An apparatus for continuous casting of molten material includes an elongate tube of electrically conductive material having an inner and an outer wall defining a molding cavity therein the inner and outer walls having a first end having an inlet for receiving the molten material and a second end having an outlet for removing a solidifying billet formed from the molten material an electrical
Get Price
Melting Remelting and Casting for Clean SteelCampbell
· Continuous casting methods all have a well‐known series of vulnerable entrainment locations 1 but these are generally much less damaging than those experienced during ingot casting which is still widely used for special steels and nickel alloys. This paper is an evaluation of the serious issues introduced by turbulence mechanisms and
Get Price
Continuous casting of steel billetsIspatGuru
· Continuous casting of steel billets. Continuous casting of steel is a process in which liquid steel is continuously solidified into a strand of metal. Depending on the dimensions of the strand these semi-finished products are called slabs blooms or billets. Steel billet has a square cross section with one side normally 150 mm or less.
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Numerical Study of Turbulent Flows and Heat Transfer in
This chapter describes the numerical simulations of a coupled industrial scale of the tundish and continuous casting process. The governing equations are presented and the numerical procedure is discussed in a common framework. The coupled solutions are presented for the transient turbulent flows within the tundish solidifying zone and extracting regions with the coupling phenomena of heat
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Mathematical Modeling of Multiphase Flow in Steel
In continuous casting of steel multiphase flow arises in many different ways. 1) Argon gas is often injected into the molten steel usually through the upper tundish nozzle walls 2 3) or stopper rod tip. 4) This is beneficial to avoid clogging 5) and air aspiration. 6) However argon bubbles affect the flow pattern in the mold 7 8 9 10 11 12) and can lead to the capture of small bubbles by
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Continuous casting-tundish technologySlideShare
· Non-steady state period of casting requires Prevention of slag carry over by vortexing and draining from the ladle to the tundish The above slag carry over issue also applies to tundish to mold transfer Suppression of turbulence caused by impinging melt stream to the tundish at the ladle opening Sustaining an inert atmosphere at ladle opening and ladle change Active compensation for
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A Metaheuristic Method for the Task Assignment Problem in
· Therefore this article argues that in the continuous-casting stage of iron and steel enterprises the distribution of casting machines and casting molten steel tundish processing order problems based on upstream resource constraints are more suitable to be solved by the PSOB algorithm for large-scale problems. 6. Conclusions
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The problem and solution of bar four-cutting bar wire
The processing precision of the rolling groove is not high. This is mainly related to the material of the roll the wear and repair accuracy of the forming tool in the repair workshop and the processing method. There is a problem with the material shape control of the 12-16 sorties.
Get Price
Continuous casting of steel billetsIspatGuru
· Maintenance of the liquid steel head in the tundish is carried out either manually or by continuous weighing the tundish with load cell and connecting the signal to the slide gate valve on the ladle. The normal time needed to cast a heat of the liquid steel is around one hour which is to be matched to the time of 30 to 40 minutes up to two hours needed for the supply of heat to the billet casting
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A REVIEW ON CAUSES OF INNTERNAL DEFECTS IN CONTINUOUS CASTING
Defects in the Continuous casting billets are shaped during the production process due to several factors which include material related factors casting speeds and temperatures mould oscillation phase transformation casting powder segregation coefficient of solute elements and
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USAContinuous steelmaking and castingGoogle
In a continuous steelmaking process a molten metal bath is maintained within a rotary furnace heated by oxy-fuel burners at the charge and discharge ends. Metallic iron charge material such as iron and steel scrap or sponge iron is preheated primarily by heat transferred from the furnace exhaust gases on an enclosed recuperative conveyor before being introduced through the charge end opening.
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Common Problems and Solutions of Tundish Refractory
So follow me and find out the problems and solutions of tundish refractory configuration. Low Strength Dry Material After vibration and baking the dry material will often have no strength or low strength which will easily lead to bag collapse and affect the case production of continuous casting.
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Effect of Flow Rate Controllers and their Opening Levels
1. Introduction. Continuous casting system is known to be operating most efficiently under the steady state conditions. 1) Transport rate of molten steel from tundish to the caster mold is among the parameters desired to be constant. In continuous casting operation of steel the flow through tundish to the mold can be controlled by different flow rate control systems including stopper rod and
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A REVIEW ON CAUSES OF INNTERNAL DEFECTS IN CONTINUOUS CASTING
Defects in the Continuous casting billets are shaped during the production process due to several factors which include material related factors casting speeds and temperatures mould oscillation phase transformation casting powder segregation coefficient of solute elements and
Get PriceDefects in Continuous Cast SteelsIspatGuru
· Defects in Continuous Cast Steels. satyendra December 11 2014 0 Comments continuous casting cracks Defects inspection mould seconday cooling surface defects Tundish Defects in Continuous Cast Steels. Continuous casting (CC) is the process which converts liquid steel into a solid product mainly in the form of slab (either thick or thin) bloom or billets.
Get Price
(PDF) Analysis of thin-slab casting by the compact-strip
In the casting lubrication are among the factors responsible for not reach- direction the segment analyzed extended from the last con- ing the high-speed limits and hinted that short molds could tainment roll at lc to the end of solidification occurring at help to cope with these problems. However while solutions lM as shown in the figure.
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(PDF) Analysis of thin-slab casting by the compact-strip
In the casting lubrication are among the factors responsible for not reach- direction the segment analyzed extended from the last con- ing the high-speed limits and hinted that short molds could tainment roll at lc to the end of solidification occurring at help to cope with these problems. However while solutions lM as shown in the figure.
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Study About Transverse Cracks In The Continuous Casting Of
Study About Transverse Cracks In The Continuous Casting Of Steel Billets. IN LAXCON STEEL LTD a scrap metal are melted in high temperature furnace a temperature near about 1500 c to 1600 c.After this melted metal bring out to Continuous Casting Machine through ladder then this mould of metal poured into tundish car machine.
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System and method for continuous casting of molten material
An apparatus for continuous casting of molten material includes an elongate tube of electrically conductive material having an inner and an outer wall defining a molding cavity therein the inner and outer walls having a first end having an inlet for receiving the molten material and a second end having an outlet for removing a solidifying billet formed from the molten material an electrical
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