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Temperature Control of Flowing Molten Glass

IP.com Disclosure Number: IPCOM000090568D
Original Publication Date: 1969-May-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Cowley, PEA: AUTHOR

Abstract

Proper temperatures of flowing molten glass in a glass container manufacturing line must be maintained. To provide adequate control of the process, it is necessary to determine the temperature of the glass at various cross-sectional points within the flow from the furnace area to the forming machine area.

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Temperature Control of Flowing Molten Glass

Proper temperatures of flowing molten glass in a glass container manufacturing line must be maintained. To provide adequate control of the process, it is necessary to determine the temperature of the glass at various cross-sectional points within the flow from the furnace area to the forming machine area.

To determine the average temperatures at desired cross-sections within the glass flow, temperatures at the outer surface of the glass flow are measured. The average temperature of each of the corresponding cross-sections are then calculated according to the formula T ave. = 2 integrals delta phr T V dy dz/delta rho Vg A.

Here delta = specific heat of the glass, rho = density of the glass, T = temperature at any point in the cross-section as a function of position y, z, V = velocity at any point in the cross-section as a function of position y,z, Vg = average glass velocity, and A = cross-sectional area.

The velocity and temperature for specific points in the cross-section are obtained in accordance with these profiles.

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