Sub. Code : 7761
GLASS QUALITY CONTROL-I
T - P - C
2
- 3 - 3
AIMS.

To the able to understand the modern concept of quality control of glass.

To be able to understand the basic concept of quantitative and volumetric chemical analysis of glass.

To be able to understand the modern process of preparation of glass sample.

To be able to understand the mechanical strength, chemical durability, viscosity, impact strength and
thermal expansion of glass.

To be able to perform the experiments on glass quality control.
SHORT DESCRIPTION
Basic concept of quality control of glass; Quantitative Chemical analysis of glass; Determination of
silicon dioxide, lead oxide and ferrous ion present in glass; Plasticity of glass; Waviness of glass; Density
of glass; Mechanical strength and chemical durability of glass; Viscosity of glass; Impact strength of
glass; Thermal expansion; Softening point; Microstructure of quartz and silica; Permeability of glass.
DETAILED DESCRIPTION
Theory
1.
2.
Understand the basic concept of quality control of glass.
1.1
Define quality control of glass.
1.2
Describe the importance of quality control in glass manufacturing.
1.3
Select different test of glass products.
1.4
Describe the tolerances and sampling procedure of glass products.
1.5
Mention the quality control based on the pattern of varieties.
Understand the chemical analysis of glass.
2.1
List the experiments of chemical analysis of glass.
2.2
Mention the equipment needed in chemical analysis of glass.
2.3
Mention the precautions to be taken for chemical analysis of glass.
2.4
Describe the method of preparation of sample of glass for the determination of silicon
dioxide, lead oxide and ferrous ion present in glass.
3.
Understand the basic concept of quantitative chemical analysis.
3.1
Define the following:
Normal solution, equivalent weight of acid, equivalent weight of base, oxidation,
reduction, titration, neutralization, end point, indicators, buffer solution.
4.
5.
6
3.2
Describe the method of titration
3.3
Describe the method of preparation of N/10 Na2CO3 solution.
3.4
Describe the method of preparation of N/10 H2SO4.
3.5
Describe the method of preparation of N/10 HCl and its standardization.
3.6
Describe the method of preparation of N/10 NaOH and its standardization.
3.7
Describe the method of preparation of N/10 KMnO4 solution.
3.8
Describe the method of preparation of N/10 K2Cr2O7 solution.
Understand the chemical analysis of glass.
4.1
Describe the method of determination of silicon dioxide (SiO2) present in glass.
4.2
Describe the method of determination of lead oxide (PbO) present in glass.
4.3
Describe the method of determination of alumina present in glass.
4.4
Describe the method of determination of ferrous ion present in glass.
4.5
Describe the method of determination of fluorine present in glass.
4.6
Describe the method of determination of boric oxide present in glass.
Understand the waviness of glass.
5.1
Define waviness of glass.
5.2
Describe the procedure of waviness determination in glass.
5.3
Make a list of different type of causes to form waviness in glass ware.
5.4
Describe the importance to prevent waviness in glass ware.
Understand the mechanical strength of glass.
6.1
Define mechanical strength of glass.
6.2
Describe the different method of determination of mechanical strength.
6.3
Describe the procedure of determination of mechanical strength by modules of rupture
test.
6.4
Describe the method of determination of strength by transverse testing.
7.
8.
9.
10
11
Understand the Chemical durability of glass.
7.1
Define chemical durability of glass.
7.2
Mention the attack of hydrofluoric acid on glass.
7.3
Describe the effect of heating high silica glass with metallic oxide at 8000c and 16000c
Understand the viscosity of glass.
8.1
Define viscosity of glass.
8.2
Discuss the working procedure of viscosity of glass.
8.3
Describe the procedure of determination of viscosity of glass.
8.4
Explain the importance of viscosity of glass.
Understand the impact strength of glass.
9.1
Define impact strength.
9.2
Mention the equipment for testing impact strength of glass
9.3
Describe the method of preparation of sample.
9.4
Describe the method of placing sample in the machine.
9.5
Describe the method determination of impact strength of glassware.
9.6
Describe the importance of impact strength to control glassware.
Understand the microstructure of quartz and silica.
10.1
State different microstructure.
10.2
Draw sketch diagram of microstructure.
10.3
Describe the formation of microstructure.
10.4
Describe the importance of microstructure quartz and silica.
Understand the thermal expansion.
11.1
Define thermal expansion of glass.
11.2
State the classification of different expansion.
11.3
Describe the preparation of Glass sample for thermal expansion.
11.4
Describe the method of placing of Glass sample in furnace.
11.5
Describe the importance of determination of thermal expansion of glass ware.
11.6
Describe the method of thermal expansion test of Glass.
12
Understand the Softening of Glass.
12.1
Define softening point of Glass.
12.2
Describe the preparation of sample for softening point determination of Glass.
12.3
Describe the procedure of determination of softening point of Glass.
12.4
Describe the importance of determination of softening point of Glass.
12.5
Distinguish between softening point and flow point of Glass.
Practical
1.
Determine the silicon dioxide present in a sample of glass.
2.
Determine the ferrous ion present in a sample of glass.
3.
Determine the the alumina present in a sample of glass.
4.
Analysis the sample of glass to find out the percentage of Lead oxide (PbO) present .
5.
Determine the compressive strength of glass.
6.
Determine the viscosity of glass.
7.
Determine the stress and strain of glass.
8.
Determine the softening point of glass.
9.
Determine the sizes of particle by Andreason pipette method.
10.
Determine the impact strength of glass.
11.
Determine the thermal expansion of glass.
12.
Determine the particle size by sieve analysis.
Reference Books
1.
Glass Melting Tank Furnaces -by Rodolf Gunther.
2.
Refractories -by F.H. Norton.
3.
Glass Engineering Hand Book -by E. B. Shaind.
4.
Hand Book of Glass Engineering -by Tooly.
5.
Refractories Hand Book -by Y. Taramiya.
6.
Fuels, Combustion and Furnaces -by Griswold.
7.
Chemical Engineers Hand Book -by Perry.
8.
Modern Glass Practices -by Sammuel R. Scholes.
9.
Colored Glasses - by Woldemar A. Weyl.
10.
Physical Properties of Glass –by J. E. Stanworth.
11.
Chemistry of Glasses – A. Paul.