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Annealing point

Two other temperatures are important in the working of glass. At the annealing point (p = 10 poise) there is still enough fluidity to relax internal stresses in about... [Pg.200]

Annealing point Internal stresses removed in a few minutes 1013 4 900 510... [Pg.146]

Annealing process periods 1 - Heating to slightly above annealing point. [Pg.103]

Figure 15.8 shows the temperature dependence of several glass compositions. Several temperatures are identified by viscosity the working temperature of a glass by 103 Pa s, the softening point by 4 x 106 Pa s, the anneal point by 2.5 x 1012 Pa s, and the strain point by 4 x 1013 Pa s. Glass objects are usually shaped... [Pg.159]

ASTM C598-88, Standard Test Method for Annealing Point and Strain Point of Glass by Beam Bending , Annual Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, PA. [Pg.267]

Annealing Point (=1013 poises) If an entire item were uniformly baked... [Pg.4]

Glass Type Thermal Coefficient of Expansion (0-300°C) xlO"7 Acm/cm/°C Strain Pont (=°C) Annealing Point (-°C) Softening Point ( °C) Working Point ( °C) Density (g/cm2) Refractive Index... [Pg.20]

ASTM provides definition for the procedures and selected reference points discussed in this entry. Some frequently used reference points are annealing points (APs) and St.P. Below are presented some of the ASTM ... [Pg.2516]

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Glass annealing point

Viscosity annealing point

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