Parametric Study of Glass Fiber Drawing Process

Liu, Songke; Banta, Larry E.

doi:10.1111/j.2041-1294.2010.00017.x

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…More recently, Liu [9] investigated numerically the variations of the final fiber diameter due to variabilities in the process and identified the temperature of the ambient air and of the furnace as their main cause. These findings led to the development of a control system to reduce the variations of the fiber diameter by adjusting the winder velocity.…”

Section: Ihtc15-1234mentioning

confidence: 99%

Numerical Investigation of the Cooling of the Continuous Fiber Glass Drawing Process

Chouffart

Simon

Terrapon

2014

Proceedings of the 15th International Heat Transfer Conference

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The manufacturing process of glass fibers used for the reinforcement of composite material consists in drawing a glass melt at high temperature through an array of thousands of small orifices (i.e., the bushing plate) into fibers using a winder. This process is sensitive to numerous disturbances that can cause a fiber to break during the drawing process. This paper analyzes how the stress in the fiber depends on the controlling parameters of the process. The approach relies on numerical simulations and sensitivity analysis. Both a semi-analytical one-dimensional model and a more complex two-dimensional axisymmetric model are used. It is first found that radial variations across the fiber are small compared to changes in the axial direction and that the onedimensional approximation is accurate enough to describe the major trends in the process. Sensitivity analyses on some physical parameters controlling the heat transfers and on process parameters are then performed to identify strategies to reduce the axial stress. In particular, it is shown that, for a given fiber diameter, the stress is minimized if the glass melt temperature and the drawing velocity are increased. This approach is then applied to quantify the effect of inhomogeneous heat patterns on a bushing plate with a large number of fibers.

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Section: Ihtc15-1234mentioning

confidence: 99%

Numerical Investigation of the Cooling of the Continuous Fiber Glass Drawing Process

Chouffart

Simon

Terrapon

2014

Proceedings of the 15th International Heat Transfer Conference

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“…In recent times, the focus of research has been on developing glass fibers for material reinforcement in composite materials and the wide variety of usage areas [7,8]. Although glass fibers have lower mechanical properties than that of carbon fibers, they are widely used since their raw materials are inexpensive and they have a facile production process [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Liu and Banta [25] have developed an analytical model on the parameters that are effective during fiber drawing. Furthermore, Lima and Monteiro [26] and Gupta et al [27] investigated the thermal behaviors of borosilicate glass/fiber depending on the temperature.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of Drawing Process Parameters on Borosilicate Glass Fiber Thickness

YILDIRIM¹,

TURGUT²,

SÜRDEM³

et al. 2022

Journal of Boron

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Borosilicate glasses have many usage areas due to their high thermal and chemical resistance with a very low thermal expansion coefficient. The number of waste borosilicate glasses is increasing in direct proportion to their usage areas. Creating new usage areas by recycling these glasses will provide cost savings. In this paper, the fiber drawing method is used to recycle borosilicate glass. The aim of this article is to investigate the effect of winding speed and temperature of drawing process on fiber thickness. The fiber drawing process was performed at specific temperatures (1100, 1200, and 1300°C) and at specific winding speeds (50, 175, and 300 rpm). In this context, the thermal behavior of borosilicate glasses was determined by DSC and TGA analysis. The structural and chemical properties and corrosion resistance of borosilicate glass fibers were examined by SEM, XPS, and corrosion test, respectively. The results show that the fiber thickness increased with the increase in the amount of material fed in the crucible, while it decreased with the increase of fiber drawing speed and time.

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“…Based on a parametric analysis of the glass fiber drawing process presented in previous work, a LQR control model with reduced order estimator and reference input is developed in this paper for a small glass furnace. Multivariable control analysis is performed to obtain the desired molten glass temperature at the bottom of the furnace and the correct winder speed when common disturbances occur such as changes in ambient temperature or glass depth in the furnace.…”

Section: Introductionmentioning

confidence: 99%

Estimator‐Based LQR Control Model for Glass Fiber Furnace

Liu

Banta

2012

Int J of Appl Glass Sci

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Drawing of glass fibers is an important industrial process used for manufacture of a variety of materials. A variety of furnaces and machines exist for manufacture of glass fibers, but all share similar problems with control of the fiber diameter and breakage of the fibers during the extrusion process. In many cases, control systems are not configured to monitor the most critical process variable — temperature of molten glass in the furnace, but instead use only furnace crown temperature. This work seeks to develop an estimator‐based LQR control model to monitor molten glass temperature and winder speed for good production quality. When a disturbance in ambient temperature and/or molten glass depth happens, the control system still performs as expected.

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Parametric Study of Glass Fiber Drawing Process

Cited by 5 publications

References 14 publications

Numerical Investigation of the Cooling of the Continuous Fiber Glass Drawing Process

Numerical Investigation of the Cooling of the Continuous Fiber Glass Drawing Process

Investigating the Effect of Drawing Process Parameters on Borosilicate Glass Fiber Thickness

Estimator‐Based LQR Control Model for Glass Fiber Furnace

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