Search Results - "Anzai, Koichi"

Heat Transfer and Solidification Analysis Using Adaptive Resolution Particle Method by Hirata, Naoya, Anzai, Koichi

“…Finer calculation elements (meshes) are required to conduct an accurate solidification simulation for castings with thin sections. Calculation methods using…”
Get full text

High-Temperature Mechanical Properties of NaCl–Na2CO3 Salt-Mixture Removable Cores for Aluminum Die-Casting by Oikawa, Katsunari, Sakakibara, Kazuhiro, Yamada, Youji, Anzai, Koichi

“…The NaCl–Na2CO3 salt mixture is proposed as a water-soluble core material for aluminum die-casting processes. The mechanical properties and microstructures of…”
Get full text

Numerical Simulation of Shrinkage Formation Behavior with Consideration of Solidification Progress during Mold Filling Using Stabilized Particle Method by Hirata, Naoya, Anzai, Koichi

“…Solidification begins during pouring in casting processes, and the pouring rate influences the solidification pattern and soundness of products. In this…”
Get full text

Primary Al Grain Size Measurement of Al–Si Hypo-Eutectic Alloy Using Mathematical Morphology Algorithms by Xu, Yan, Hirata, Naoya, Anzai, Koichi

“…Homogeneous distribution of primary Al phase grain (hereafter, primary Al grain) size in an Al–Si alloy casting is desirable. Traditional image processing…”
Get full text

Improvement of Calculation Stability for Slow Fluid Flow Analysis Using Particle Method by Hirata, Naoya, Anzai, Koichi

“…MPS (Moving particle semi-implicit) method is one of the popular particle methods. It is well known that calculation instability occurs especially for a slow…”
Get full text

Ultrafine Spheroidal Graphite Iron Castings by Itofuji, Haruki, Edane, Kazuya, Kotani, Tomokatsu, Itamura, Masayuki, Anzai, Koichi

“…Gravity die casting of spheroidal graphite iron had been attempted controlling free nitrogen during preparing base molten iron, magnesium treatment,…”
Get full text

Simulation of the Center-Line Segregation Generated by the Formation of Bridging by Murao, Takemasa, Kajitani, Toshiyuki, Yamamura, Hideaki, Anzai, Koichi, Oikawa, Katsunari, Sawada, Tomoki

“…The macrosegregation model that heat transfer, solidification, liquid flow and solute movement were considered was developed to simulate the generation of the…”
Get full text

Numerical Simulation of Shrinkage Formation of Pure Sn Casting Using Particle Method by Hirata, Naoya, Anzai, Koichi

“…Shrinkage formation often causes fatal defects in castings. Recently, the development of computer technology has provided us with a useful and effective method…”
Get full text

Quantitative evaluation of die casting surface defect severity by analyzing surface height by Xu, Yan, Hirata, Naoya, Anzai, Koichi

“…It is necessary in factories to assess the severity of the surface defects of castings, as a slight surface defect will be taken as qualified when it brings no…”
Get full text

Strength of Salt Core Composed of Alkali Carbonate and Alkali Chloride Mixtures Made by Casting Technique by Yaokawa, Jun, Miura, Daisuke, Anzai, Koichi, Yamada, Youji, Yoshii, Hiroshi

“…The strength of four binary systems NaCl–Na2CO3, KCl–K2CO3, KCl–NaCl and K2CO3–Na2CO3 was investigated in order to develop expendable salt core for high…”
Get full text

Thermodynamic Assessment of the Bi-Mn System by Oikawa, Katsunari, Mitsui, Yoshifuru, Koyama, Keiichi, Anzai, Koichi

“…A thermodynamic assessment of the Bi-Mn binary system was conducted using the CALPHAD approach. Consistent thermodynamic descriptions, which agreed well with…”
Get full text

Design Methods for Solidification Structures in Micro Continuous Casting by Ito, Nobuaki, Anzai, Koichi

“…Micro continuous casting, which includes, for example, single-roll casting, twin-roll casting, and EFG, is a comprehensive casting method concept for…”
Get full text

Reassessment of Liquid/Solid Equilibrium in Ni-Rich Side of Ni-Nb and Ni-Ti Systems by Kajikawa, Koji, Oikawa, Katsunari, Takahashi, Fumio, Yamada, Hitohisa, Anzai, Koichi

“…The liquidus and solidus for the Ni-rich side of the Ni-Nb and Ni-Ti systems on a region of Ni-Nb and Ni-Ti systems of <10 mass% Nb or Ti were measured in…”
Get full text

Influence of reaction media on pressure sensitivity of polyanilines doped with DBSA by de Souza, Fernando Gomes Jr, Anzai, Thiago Koichi, Melo, Príamo Albuquerque Jr, Soares, Bluma G, Nele, Márcio, Pinto, José Carlos

“…The effect of the reaction medium on the final electrical performance of Pani doped with dodecylbenzene sulfonic acid (DBSA), Pani.DBSA, is analyzed in this…”
Get full text

Thermodynamic assessment of the KCl -K2CO3 -NaCl -Na2CO3 system by YAOKAWA, Jun, OIKAWA, Katsunari, ANZAI, Koichi

“…Phase equilibria and thermodynamic properties of the KCl-K2CO3-NaCl-Na2CO3 system were analyzed on the basis of the thermodynamic evaluation of the…”
Get full text

Effect of Die-Surface Treatment on Magnesium Alloys Fluidity by Hsueh-Shang, Lu, Yaokawa, Jun, Anzai, Koichi

“…Magnesium alloy offers an outstanding combination of light weight, ease of manufacturing, and good engineering properties. The most common method to…”
Get full text

Phase Equilibria in Ni-Rich Portion of Ni-Si System by Oikawa, Katsunari, Saito, Ryo, Kobayashi, Kosei, Yaokawa, Jun, Anzai, Koichi

“…The phase equilibria of the Ni-rich portion in the Ni-Si system were investigated. The phase boundaries between liquid and fcc phases were established by the…”
Get full text

To develop a quantitative method for predicting shrinkage porosity in squeeze casting by Shaomin, Li, Kenichiro, Mine, Shinji, Sanakanishi, Koichi, Anzai

“…In order to secure high strength and high elongation of suspension parts, it is critical to predict shrinkage porosity quantitatively. A new simulation method…”
Get full text

Quantitative Prediction Method for Shrinkage Porosity Considering Molten Metal Supply by Pressure in Squeeze Casting by Li, Shaomin, Mine, Kenichiro, Sanakanishi, Shinji, Anzai, Koichi

“…It is important to predict shrinkage porosity quantitatively in squeeze casting process by CAE. A new calculation method has been developed considering molten…”
Get full text

In situ determination of aniline polymerization kinetics through near-infrared spectroscopy by de Souza, Fernando Gomes Jr, Anzai, Thiago Koichi, Rodrigues, Marcus V.A, Melo, Príamo Albuquerque Jr, Nele, Márcio, Pinto, José Carlos

“…This article describes a method for the determination of kinetic constants in aniline polymerizations performed in the presence of dodecylbenzene sulfonic…”
Get full text