Numerical Simulation of Inclusion Removal in a Billet Continuous Casting Mold Based on the Partial-cell Technique
スポンサーリンク
概要
- 論文の詳細を見る
A mathematical model has been developed to simulate the fluid flow behavior and subsequent inclusion removal rate in a billet continuous casting mold. The model is then used to evaluate the effects of various nozzle designs and operating conditions on the removal of inclusions originally adhere to the continuous casting mold. The ultimate goal is to obtain the optimal design and operating condition to improve the steel cleanliness.The numerical technique employed in this study is the SOLA-SURF technique incorporated with the partial-cell scheme, which can better approximate the geometry of the simulated system. Other than simulating the flow field of molten steel in the continuous casting mold, the pathlines of nonmetallic inclusions, which are affected by the interactions of inclusion particles and molten steel, are also calculated to directly access the effectiveness of inclusion removal.The model is then tested on a circular billet continuous caster, which requires the model to have the capability to treat curved surfaces in the geometry of the simulated system. Various port designs in the submerged nozzle and operating conditions such as casting speed and submerged depth of the nozzle are evaluated with the calculated pathlines of the inclusion particles for their effects on the cleanliness of the steel. Results of this research show that the flow pattern in the mold region is affected by the design of the nozzle and operation of the caster. It also shows that submerged depth of the nozzle has a more profound effect on the efficiency of inclusion removal than the casting speed.
- 社団法人 日本鉄鋼協会の論文
- 2003-11-15
著者
-
Hwang Weng-sing
Department Of Material Science And Engineering National Cheng Kung University
-
Hwang Weng-sing
Department Of Materials Science And Engineering National Cheng-kung University
-
HO Yeong-Ho
Department of Information Management, Diwan College of Management
-
Ho Y‐h
Department Of Information Management Diwan College Of Management
関連論文
- Numerical Study of Fluid Flow Behaviors in an Alkali-Free Glass Melting Furnace
- Effects of Graphite, SiO_2, and Fe_2O_3 on the Crushing Strength of Direct Reduced Iron from the Carbothermic Reduction of Residual Materials
- Numerical Study of Fluid Flow and Heat Transfer Behaviors in a Physical Model Similar in Shape to an Actual Glass Melting Furnace and Its Experimental Verification
- The Effects of Operating Parameters on Micro-Droplet Formation in a Piezoelectric Inkjet Printhead Using a Double Pulse Voltage Pattern
- Study of Micro-Droplet Behavior for a Piezoelectric Inkjet Printing Device Using a Single Pulse Voltage Pattern
- Simulation of Droplet Ejection for a Piezoelectric Inkjet Printing Device
- Effects of Process Conditions of Melting Furnace on Alkali-Free Glass Cleanliness
- Electrochemistry of Ethanol Oxidation on Ni-Pt Alloy Electrodes in KOH Solutions
- Experimental Investigation on Earing Behavior of Aluminum/Copper Bimetal Sheet
- The Simulation of Shape Evolution of Solder Joints during Reflow Process and Its Experimental Validation
- Characterization of SnO_2/TiO_2 Double-Layer Films as Alcohol Sensing Materials
- Effects of Solid Fraction on the Heat Transfer Coefficient at the Casting/Mold Interface for Permanent Mold Casting of AZ91D Magnesium Alloy
- Mold Filling Analysis in Lost Foam Casting Process for Aluminum Alloys and Its Experimental Validation
- Multi-phase Flow Simulations in Direct Iron Ore Smelting Reduction Process
- Influence of Interfacial Structure Development on the Fracture Mechanism and Bond Strength of Aluminum/Copper Bimetal Plate
- Forging Condition for Removing Porosities in the Hybrid Casting and Forging Process of 7075 Aluminum Alloy Casting
- Mathematical Modeling of Fluid Flow Phenomena during Tundish Filling and Subsequent Initial Casting Operation in Steel Continuous Casting Process
- Effects of Substrate Temperature and Oxygen Pressure on Crystallographic Orientations of Sputtered Nickel Oxide Films
- Effect of Film Thickness on Structural and Electrical Properties of Sputter-Deposited Nickel Oxide Films
- Effects of Basicity and FeO Content on the Softening and Melting Temperatures of the CaO-SiO_2-MaO-Al_2O_3 Slag System
- High Mechanical Properties of Polychloroprene/Montmorillonite Nanocomposites
- Transformation Characterization of Ni(OH)_2/NiOOH in Ni-Pt Films Using an Electrochemical Quartz Crystal Microbalance for Ethanol Sensors
- Numerical Simulation on Hardness Distribution for a FC250 Gray Cast Iron Brake Disc Casting and Its Experimental Verification
- Process Design Optimization through Numerical Experimentation for a Brake Disc Casting
- Effects of Pulse Voltage on the Droplet Formation of Alcohol and Ethylene Glycol in a Piezoelectric Inkjet Printing Process with Bipolar Pulse
- A Three Dimensional Cellular Automaton Model for the Prediction of Solidification Morphologies of Brass Alloy by Horizontal Continuous Casting and Its Experimental Verification
- Pasty Ranges and Latent Heat Release Modes for Sn-9Zn-xAg Lead-free Solder Alloys
- Numerical Simulation of Inclusion Removal in a Billet Continuous Casting Mold Based on the Partial-cell Technique
- Mathematical Modeling of Solidification Microstructure of Pure Copper by Vacuum Continuous Casting and Its Experimental Verification
- Study of Solid Accretion Formation inside Pyrometallurgical Vessels by a Wax Model and Similarity Conversion for Gas Bottom-Blown Process
- Preparation and Mechanical Properties of Polychloroprene–Montmorillonite Composites
- Dispersibility of Amphibious Montmorillonite
- The Analysis of Molten Steel Flow in Billet Continuous Casting Mold
- A Modified Free Surface Treatment for the Modeling of Puddle Formation in Planar Flow Casting Process