Simplified Mathematical Model Simulating Heat Transfer in Glass‐Forming Molds

Manthuruthil, J.C.; Sikri, T. R.; Simmons, G. A.

doi:10.1111/j.1151-2916.1974.tb10919.x

Cited by 11 publications

(7 citation statements)

References 3 publications

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“…During forming operations inside the molds, the semitransparent internal radiation of the glass has been approximated using an effective conductivity that accounts for the extra amount of heat due to the internal radiation. The radiative component has been approximated as a diffusive process and has been added to the Fourier's law conductivity term …”

Section: Relevant Materials Propertiesmentioning

confidence: 99%

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Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Biosca

Borrós

Clemente³

et al. 2019

Int J of Appl Glass Sci

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Glass forming to produce perfume bottles with specific thickness distribution profiles is based on trial and error and requires several tests in production line. These tests are expensive and time‐consuming, which increases time to market. The use of a numerical model aims to reduce the number of prototypes by performing virtual tests of the mold equipment and the process conditions. This article presents results of numerical simulations of the blow and blow forming process to predict glass thickness distribution. Correlation of the simulation results of the glass temperature with experimental infrared measurements on the glass skin and experimental validation of glass forming simulations and influence of the blank mold cavity in the thickness distributions of perfume bottles are provided. Finally validation of the results of axisymmetrical and three‐dimensional models for axisymmetric bottles defining a useful technique to use the right blank mold for desired thickness distribution while reducing the trial and error testing.

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Section: Relevant Materials Propertiesmentioning

confidence: 99%

“…Several authors have performed extensive experimental studies of these phenomena to characterize the heat flux at the glass‐mold contact interface as a function of the glass and mold conditions …”

Section: Relevant Materials Propertiesmentioning

confidence: 99%

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Biosca

Borrós

Clemente³

et al. 2019

Int J of Appl Glass Sci

View full text Add to dashboard Cite

show abstract

“…The internal radiation, therefore, plays a minor role in determining the temperature distribution and heat flux close to a glass/metal interface, as discussed by Rawson [4]. During the actual process it may, therefore, be reasonable to assume that the overall effect of internal radiation can be adequately described by replacing the true thermal conductivity by the effective thermal conductivity [5,6].…”

Section: Modellingmentioning

confidence: 99%

Modelling and simulation for cooling processes in television panel manufacture

Zhou

Cui

Huang

2007

Proceedings of the Institution of Mechanical Engineers, Part B:

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Cooling design in the forming operation of the television (TV) panel is important because it significantly affects the part quality associated with residual stresses and productivity. A mathematical model and numerical simulation for the cooling process of the panel has been developed. The renormalization group turbulence model is applied for the jet impinging cooling, and a local one-dimensional transient analysis in the thickness direction is adopted for the part, which employs the finite difference method. The experimental verification shows a good agreement with the simulation results.

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“…The amount of internal radiation depends on many factors, such as the shape of the article, its opaqueness, or temperature. Therefore, during the actual forming operation it is reasonable to assume that the effect of internal radiation is adequately described by replacing the true thermal conductivity by an effective thermal conductivity that allows for the 'extra' transport of heat due to the internal radiation [30,31].…”

Section: Heat Transfermentioning

confidence: 99%

A review of research in numerical simulation for the glass-pressing process

Brown

2007

Proceedings of the Institution of Mechanical Engineers, Part B:

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Pressing is one of the most versatile and important manufacturing processes capable of mass-producing complicated glass parts in net shape with excellent dimensional tolerance. Numerical simulation of glass pressing has been an active research area for many years, as part quality and yield requirements become more stringent. This paper reviews the research and development in numerical simulation of glass pressing. It organizes prior studies into three categories, namely, glass flow, heat transfer, and residual stresses. Based on the research progress to date, this paper suggests that the coupled and integrated simulation considering material, mould, and process, the use of empirical models and soft computing techniques to complement the numerical simulation, and small-scale experiments are the three most important areas for further advancement.

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Simplified Mathematical Model Simulating Heat Transfer in Glass‐Forming Molds

Cited by 11 publications

References 3 publications

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Numerical and experimental study of blow and blow for perfume bottles to predict glass thickness and blank mold influence

Modelling and simulation for cooling processes in television panel manufacture

A review of research in numerical simulation for the glass-pressing process

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