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fluid flow in the mold

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  • Numerical Analysis Fluid Flow Continuous Casting Mold by

    ISIJ International Vol. 31 (1991) No. l the mold. Theseanalyses however do not consider the effect of gas on the fluid flow because they are basedon one phasemodels. Taniguchi and Kikuchi et al.3-5) have developed a bubble dispersion modelapplicable to the analysis of fluid flow in the gas-liquid two phase region and succeededin analyzing the dispersion of bubbles the liquid velocity

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  • Basic HydraulicsCapetronics

    Aug 13 2010 · The speed at which the load moves will be dependent upon the volume of fluid which is fed to the load cylinder. For example as the mold is opening or closing the pressure generated in the system represents the resistance of the toggle lever to movement.

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  • #084 Basic Dynamics of Injection Molds (Flow Volume

    In injection molding the molten plastic (fluid) flows through sprues and runners and gets filled inside the cavity. This phenomenon is expressed schematically as a fluid with viscosity flowing in a pipe.

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  • (PDF) Effect of Nozzle Clogging on the Fluid Flow Pattern

    The flow pattern of molten steel in a mold of continuous casting affects the temperature distribution and initially solidifies the shell thickness homogeneity inclusion transport and liquid slag

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  • Influence of straight nozzles on fluid flow in mold and

    Simultaneously owing to the mold radius the entry jet induces a nonsymmetric flow downstream in the mold. At the shallow position of 90 mm nozzle S73 induces a flow characterized by cyclic velocity spikes of low frequency and short duration close to the meniscus making the metal-flux interface highly instable.

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  • Ch 10 Flashcards Quizlet

    10-15 Explain the effects of mold materials on fluid flow and heat transfer in casting operations. o 10-15 Mold materials can have dramatic effect on the pouring cooling and final strength properties of the casting. If the mold allows the metal to cool to quickly it may freeze before the mold is full trap gas bubbles that cause porosity

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  • Get More Coolant Flow Through Smaller Bubblers

    Apr 01 2017 · The mold was originally built with a standard-sized equal-area-based drilled hole and bubbler. The hole in each core was 0.093 inch (3/32) and the high flow tube had a 0.072-inch outside diameter with a 0.060-inch inside diameter. During the mold s first run only 0.5 gallons per minute flowed through the row of eight cores.

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  • Principles of rotational moldingRao1972Polymer

    Fluid Flow During Rotational Molding wherein we discuss the velocity profiles within the melt film point out that there is very little bulk polymer flow possible within the mold cavity under normal processing conditions and consider capillary flow forces and surface wetting.

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  • Asymmetric Multi-phase Fluid Flow and Particle Entrapment

    A computational model has been developed to study the fluid flow phenomena in both the nozzle and mold. Owing to the left-right symmetry the domain includes half of the nozzle and mold extending from the tundish bottom to 3m below the meniscus including both the inner and outer radius.

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  • Simulation of mold filling by a highly viscous fluid using

    The results of simulation of mold filling by a highly viscous fluid are presented in this paper. The process of injection molding using a polymer melt is simulated. The mold has a rectangular shape and can have a coaxially placed rod. Evolving flow is characterized by a free surface und ergoing significant deformations during the whole process.

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  • Numerical Analysis Fluid Flow Continuous Casting Mold by

    ISIJ International Vol. 31 (1991) No. l the mold. Theseanalyses however do not consider the effect of gas on the fluid flow because they are basedon one phasemodels. Taniguchi and Kikuchi et al.3-5) have developed a bubble dispersion modelapplicable to the analysis of fluid flow in the gas-liquid two phase region and succeededin analyzing the dispersion of bubbles the liquid velocity

    Get Price
  • Numerical Simulation of Fluid Flow in a Round Bloom Mold

    In this article an electromagnetic field simulation and a flow analysis model are performed to describe the three-dimensional electromagnetic field distribution and the electromagnetically driven flow characteristics in a round-bloom mold with a low-frequency in-mold rotary electromagnetic stirrer. The interaction between the induced flow and the inertial impinging jet from a straight-through

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  • What are the effects of mold materials on fluid flow and

    Flow of the molten metal in the mold mold design rate of pouring heat transfer and cooling rate of the metal in the mold are the important factors in casting operation. The properties of the mold material that greatly affect the heat transfer and fluid flow are thermal conductivity and the surface roughness. Chapter 5 Problem 2Q is solved.

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  • Asymmetric Multi-phase Fluid Flow and Particle Entrapment

    A computational model has been developed to study the fluid flow phenomena in both the nozzle and mold. Owing to the left-right symmetry the domain includes half of the nozzle and mold extending from the tundish bottom to 3m below the meniscus including both the inner and outer radius.

    Get Price
  • Numerical Analysis Fluid Flow Continuous Casting Mold by

    ISIJ International Vol. 31 (1991) No. l the mold. Theseanalyses however do not consider the effect of gas on the fluid flow because they are basedon one phasemodels. Taniguchi and Kikuchi et al.3-5) have developed a bubble dispersion modelapplicable to the analysis of fluid flow in the gas-liquid two phase region and succeededin analyzing the dispersion of bubbles the liquid velocity

    Get Price
  • USA1Controlled fluid flow mold and molten

    A DC casting mold for casting molten metal alloy comprising a cooled tubular body that has a thermally insulated insert attached to its top surface. The thermally insulated insert has a bottom portion with a beveled sidewall which forms an angle with the horizontal melt surface layer of the molten metal and creates an eddy. The eddy causes a substantial number of oxides that are formed during

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  • PHYSICAL MODELING OF OSCILLATION EFFECT ON FLUID

    fluence of frequency to the fluid flow. The π 2 number is the ratio of the oscillation stroke to the mold s feature size giving an index to the effect of amplitude on the fluid flow. Determination of similarity condition For dynamic similarity the Re number of both the prototype and the model should be guaranteed in the

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  • Practical Mold CoolingSmartflow USA

    Turbulent flow begins when the velocity of fluid in a channel increases to a critical level. Above this critical velocity vigorous internal mixing of the fluid occurs as it flows. so good cooling performance requires well-placed passages in the mold as well as greater flow rates to carry away the heat. Thus it is generally true that if

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  • Troubleshooting Mold Temperature Control Plastics Technology

    Jan 29 2013 · One pump is dedicated to recirculating fluid through the chiller evaporator while the other provides the increased process flow to the mold. Alternatively or if you are using a central chiller a TCU can be used not only to fine-tune mold temperature but also to act as a booster pump ensuring adequate pressure and volume to create turbulent

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  • About Coolant Flow analyses Moldflow Insight 2019

    The Coolant Flow analysis analyzes the fluid behavior in the cooling circuit without the additional time required to analyze the part and mold. Use the Coolant Flow analysis to design the layout and properties of your cooling channel network to optimize their performance and to contain costs. Note You can also set up the analysis and obtain

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  • Influence of straight nozzles on fluid flow in mold and

    Simultaneously owing to the mold radius the entry jet induces a nonsymmetric flow downstream in the mold. At the shallow position of 90 mm nozzle S73 induces a flow characterized by cyclic velocity spikes of low frequency and short duration close to the meniscus making the metal-flux interface highly instable.

    Get Price
  • Study on the Asymmetric Fluid Flow in the Continuous

    The fluid flow pattern in the mold is not steady but instead an oscillatory flow with a specific oscillation frequencies. We identified the physical origins of various specific oscillation frequencies and confirmed through experimentation and simulation that each frequency is related to the cross flow and injection stream oscillation.

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  • #083 Basic Dynamics of Injection Mold Fluid Dynamics

    June17 2011. In an injection mold molten plastic is injected into a mold cooled to solidify it and then the molded product is taken out. It is necessary to apply pressure in order to inject molten plastic. How much pressure is required can be predicted in advance using calculations of fluid dinamics.

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  • Effect of Nozzle Clogging on the Fluid Flow Pattern in a

    Oct 22 2020 · The flow pattern of molten steel in a mold of continuous casting affects the temperature distribution and initially solidifies the shell thickness homogeneity

    Get Price
  • Effect of Entrance Nozzle Design on the Fluid Flow in an

    Effect of Entrance Nozzle Design on the Fluid Flow in an Ingot Mold during Filling Robert ERIKSSON Lage JONSSON and Pär G. JÖNSSON Division of Metallurgy Royal Institute of Technology SE-100 44 Stockholm Sweden. (Received on June 12 2003 accepted in final form on May 27 2004)

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  • Numerical Analysis Fluid Flow Continuous Casting Mold by

    ISIJ International Vol. 31 (1991) No. l the mold. Theseanalyses however do not consider the effect of gas on the fluid flow because they are basedon one phasemodels. Taniguchi and Kikuchi et al.3-5) have developed a bubble dispersion modelapplicable to the analysis of fluid flow in the gas-liquid two phase region and succeededin analyzing the dispersion of bubbles the liquid velocity

    Get Price
  • (PDF) 2/2 DIMENSIONAL MOLD FILLING SIMULATIONS WITH A

    The flow of a fluid characterized by high viscosity in a narrow gap is a problem typically found in processes of injec- tion molding. In this case the flow can be described by few suitable simplifications in the three dimensional conservation equations resulting in a formulation known as Hele-Shaw approach.

    Get Price
  • (PDF) 2/2 DIMENSIONAL MOLD FILLING SIMULATIONS WITH A

    The flow of a fluid characterized by high viscosity in a narrow gap is a problem typically found in processes of injec- tion molding. In this case the flow can be described by few suitable simplifications in the three dimensional conservation equations resulting in a formulation known as Hele-Shaw approach.

    Get Price
  • Effects of Stopper Rod Movement on Mold Fluid Flow

    Effects of stopper rod movement on transient flow phenomena in the mold and formation of sliver defects are investigated via plant measurements and numerical simulations. First sliver locations are correlated with stopper rod position and level fluctuation histories in the mold by analyzing images of slivers and process data recorded at ArcelorMittal Dofasco s Continuous Caster.

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