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tundish nozzle in continous casting

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  • VISO Tundish StopperVesuvius

     · tundish stopper reduces alumina deposits in the sub-entry nozzle and promotes the fl oatation of inclusions in the mould. Different confi gurations of the stopper nose can be used for argon injection into the steel stream. The most commonly used direct injection and permeable plug are shown above. The permeable plug is designed and

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  • Continuous Casting ProductsGrind Chem

     · Tundish Lining Boards. √ Disposable boards used to form an inner lining for continuous casting tundishes.. √ Avoids the lengthy preheating process and saves Energy.. √ Can be used for multiple heats upto more than 24 Hours of Casting . √ Easy deskulling of tundish at completion of casting.. √ Easy to assemble thereby Improves turn around time significantly

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  • Mechanism of alumina buildup in tundish nozzles during

    During continuous casting of aluminum-killed steels the pouring rate through the tundish nozzle often diminishes posing serious operating problems. This happens because a build- up of microscopic alumina particles at the nozzle orifice effectively decreases the nozzle orifice diameter and causes constriction of the liquid-steel pouring stream

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  • Examination of nozzle clogging in continuous casting

    entry nozzle (SEN). This phenomenon has represented a technical problem for steel makers ever since continuous casting was introduced. If the problem is temporarily solved either by increasing the inner size of the casting equipment parts or by giv-ing oxygen cleaning to the ladle or to the tundish the product quality may be ad-versely affected.

    Get Price
  • Basics of Continuous Casting of SteelSteel casting process

     · The tundish is placed about 80-90 feet above the ground level and the whole process of casting sues gravity to operate. The tundish is constantly supplied with molten steel to keep the process going. The whole process is controlled to ensure there is smooth flow of molten steel through tundish. Further the impurities and slag are filtered in

    Get Price
  • Continuous Casting ProductsGrind Chem

     · Tundish Lining Boards. √ Disposable boards used to form an inner lining for continuous casting tundishes.. √ Avoids the lengthy preheating process and saves Energy.. √ Can be used for multiple heats upto more than 24 Hours of Casting . √ Easy deskulling of tundish at completion of casting.. √ Easy to assemble thereby Improves turn around time significantly

    Get Price
  • Prevention of Nozzle Clogging in Continuous Casting of Steel

     · Prevention Of Nozzle Clogging In The Continuous Casting Of Steel. There have been four documented causes for nozzle clogging in continuous casting steels build up de-oxidations such as Al2O3 (1) solid steel build up buildup of complex oxides such as spinels and the buildup of reaction products such as CaS (4).

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  • Continuous casting-tundish technologySlideShare

     · 44. Various technologies such as a long nozzle or an inert gas shrouding pipe have been implemented to reduce air reoxidation and slag emulsification. Tundish thermal state during continuous casting as function of heat losses through the tundish shell insulation of

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  • Tundish to Mould Solutions for Billet Casters with

     · Primary objectives Provide accurate and fast flow control adjustment from tundish to mould. In some cases be flexible to operate the same caster either with a flow control valve or with a calibrated nozzle calibrated nozzle changer. Main features 2 different calibrated nozzle designs with common benefits Increases caster productivity.

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  • VISO Tundish StopperVesuvius

     · tundish stopper reduces alumina deposits in the sub-entry nozzle and promotes the fl oatation of inclusions in the mould. Different confi gurations of the stopper nose can be used for argon injection into the steel stream. The most commonly used direct injection and permeable plug are shown above. The permeable plug is designed and

    Get Price
  • Steel Making Continuous casting ISlideShare

     · 13. MY 301 Steel Making Processes Mold Mold is the heart of continuous casting. Molten stream enters from the tundish through the submerged nozzle into water cooled mold in presence of flux. Solidification of steel begins in the mold. The casting powder is added onto the

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  • Design of Tundish Nozzles Alignment System for

     · 4 372 Design of Tundish Nozzles Alignment System for Multistrand Billet Casters in Continuous Casting Shop Amresh Kumar Verma1 Sambandham Thirumalai Selvam1 Subhasis Chaudhuri1 Pradeep Kumar Mishra2 Arun Kumar Prasad Singh1 1 Process Engineering Group Design Engineering Division Research Development Centre for Iron Steel Steel Authority of India

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  • Prevention of Nozzle Clogging in Continuous Casting of Steel

     · Prevention Of Nozzle Clogging In The Continuous Casting Of Steel. There have been four documented causes for nozzle clogging in continuous casting steels build up de-oxidations such as Al2O3 (1) solid steel build up buildup of complex oxides such as spinels and the buildup of reaction products such as CaS (4).

    Get Price
  • Optimization of Oscillation Parameters in Continuous

     · In continuous casting the liquid steel from a ladle is first poured into a buffer vessel called a tundish from where it flows continuously through a bifurcated submerged entry nozzle into a water-cooled copper mould. This mould is about a meter in length with sectional width about one-and-half meters and thickness about two hundred millimeters. Water is circulated through pipes embedded in the mould walls to extract heat from the liquid steel. Consequently a thin solidified steel shell develops next to the mould inner walls while inside this shell the steel remains liquid. The shell grows in thickness internally even as it is continuously withdrawn from the mould on rollers and further cooled using water sprays. Finally the completely solidified slab of required length is cut from the continuously cast strand . The schematic representation of continuous casting

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  • Tundish Nozzle Constriction in Continuous Casting of

     · A study was made on the problem of tundish nozzle constriction in continuous casting of titanium bearing stainless steel slabs. The constriction becomes more severe as the percentage of alumina in the molten steel in the tundish and subsequently the ratio of alumina to titanium nitride increases. The main origin of titanium nitride and alumina

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  • Strategies Against Reoxidation of Liquid Steel in Billet

     · changing casting speed if the need arises or for changing the nozzle if erosion cracking or clogging occurs. Open casting means no steel jet protection during transfer from ladle to tundish and from tundish to molds with an exception for low carbon steel. In some cases the injection of aluminum wire into the mold is still practiced.

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  • Ceramic Nozzle and Ceramic Tube For Continuous Casting

    Ceramic Nozzle and Ceramic Tube For Continuous Casting Tundish Launder. The stopper rod and Ceramic Tube are made of high-silicon melt material which has strong corrosion resistance and no pollution to metal solution. It can be used multiple times.

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  • Continuous Casting Processan overview ScienceDirect

    The continuous casting process is shown in Figure 1.9.1.Steel is poured from the ladle into the tundish which provides a constant head for molten steel to flow from the tundish into the mold via a submerged entry nozzle (SEN).The copper mold is water-cooled and the bottom of the mold is initially sealed by a dummy bar of steel. When steel is poured from the tundish to the mold it freezes to

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  • Lecture 33 continuous casting of steelNPTEL

     · Figure 33.2 Tundish with flow control device namely weir and slotted dam Mold Mold is the heart of continuous casting. In the water cooled mold molten stream enters from the tundish into mold in presence of flux through the submerged nozzle immersed in the liquid steel.

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  • Basics of Continuous Casting of SteelSteel casting process

     · The tundish is placed about 80-90 feet above the ground level and the whole process of casting sues gravity to operate. The tundish is constantly supplied with molten steel to keep the process going. The whole process is controlled to ensure there is smooth flow of molten steel through tundish. Further the impurities and slag are filtered in

    Get Price
  • Refractory Lining of a Continuous Casting TundishIspatGuru

     · Fig 1 Typical tundish along with its refractories. The refractory lining design and quality of refractories used for lining have major influence on the operational parameters of CC machines such as super heat requirements speed of the machine the phenomenon like initial cold running stopper nozzle clogging tundish through etc. Due to the temperature extremes involved refractory linings of

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  • Dyson Technical CeramicsTundish Metering Nozzles

    The lower nozzle is located within an assembly that is fixed to the bottom of the Tundish. Once the nozzle wears out or the casting speed needs to be reduced the lower nozzle can be exchanged with either a new lower nozzle or a blank nozzle to shut the strand off entirely. Lower nozzles must be erosion resistant to enable long casting sequences.

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  • Clogging in Continuous Casting Nozzles K. G. Rackers and

     · Clogging in continuous casting nozzles is the buildup of material in the flow passage between the tundish and mold (see Figure 1.). The consequences of clogging include • Decreased productivity. To compensate for clogging the flow control device (e.g. slide gate) must be further opened.

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  • Ceramic Nozzle and Ceramic Tube For Continuous Casting

    Ceramic Nozzle and Ceramic Tube For Continuous Casting Tundish Launder. The stopper rod and Ceramic Tube are made of high-silicon melt material which has strong corrosion resistance and no pollution to metal solution. It can be used multiple times.

    Get Price
  • Examination of nozzle clogging in continuous casting

    entry nozzle (SEN). This phenomenon has represented a technical problem for steel makers ever since continuous casting was introduced. If the problem is temporarily solved either by increasing the inner size of the casting equipment parts or by giv-ing oxygen cleaning to the ladle or to the tundish the product quality may be ad-versely affected.

    Get Price
  • Two-Phase Flow in Tundish Nozzles During Continuous

     · Tundish nozzle geometry is one of the few variables that are both very influential on the castingprocess and relatively inexpensive to change. Designing an effective nozzle requires quantitativeknowledge of the relationship between nozzle geometry and other process variables on theinfluential characteristics of the flow exiting the nozzle. This relationship depends on the flowpattern within the nozzle components. Most previous modeling studies of flow in the nozzle havefocused on single-phase flow 1-4 . Argon injection into nozzle is an efficient and widelyemployed method to reduce nozzle clogging even though the real working mechanism(s) are stillnot fully understood. Argon injection may greatly affect the flow pattern in the nozzle andsubsequently in the mold. Therefore two-phase flow modeling is needed to improveunderstanding of fluid flow in the nozzle.

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  • Different Type Tundish Zirconic Metering Nozzle In China

    Tundish Metering Nozzle Zirconium Nozzle Steelmaking Ladle Related Product RSiC Burner Nozzle with Recrystallized silicon carbide ceramic ReSiC burner tubes SiC bu RSiC plate with Recrystallized Silicon carbide ceramics (Kiln shelf) sic plates ceramic sand for precision casting

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  • Different Type Tundish Zirconic Metering Nozzle In China

    Tundish Metering Nozzle Zirconium Nozzle Steelmaking Ladle Related Product RSiC Burner Nozzle with Recrystallized silicon carbide ceramic ReSiC burner tubes SiC bu RSiC plate with Recrystallized Silicon carbide ceramics (Kiln shelf) sic plates ceramic sand for precision casting

    Get Price
  • Prevention of Nozzle Clogging in Continuous Casting of Steel

     · Prevention Of Nozzle Clogging In The Continuous Casting Of Steel. There have been four documented causes for nozzle clogging in continuous casting steels build up de-oxidations such as Al2O3 (1) solid steel build up buildup of complex oxides such as spinels and the buildup of reaction products such as CaS (4).

    Get Price

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Rongsheng's main products are various types of unshaped refractory products, which are widely used in metallurgy, nonferrous metals, building materials, electric power, petrochemical and other industries.

Rongsheng pays attention to technological innovation and product research and development, and has established close cooperative relations with many universities and scientific research institutes.

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