Unit 1 INTRODUCTION TO ENAMEL

10 lecture hours

• 1.1 Define enameling. 1.2 Choose utility of enamels on metal surface. 1.3 lists out different properties of enamel. 1.4 List out types of enamel. 1.5 Differentiate the various types of enamels. 1.6 Classification of enamel making raw materials. 1.7 Refractory materials
• 1.9 Floating agents
• Electrolytes Milling of enamel raw materials

Unit 2 PREPARATION OF METAL SURFACE FOR

6 lecture hours

• ENAMELLING 2.1 Various methods adopted for cleaning metal surfaces such as 2.1.1 annealing. 2.1.2 Scaling. 2.1.3 Chemical pickling. 2.1.4 Electrolytic cleaning. 2.1.5 Neutralization

Unit 3 BATCH COMPOSITION AND CALCULATION

• 3.1 The chemical composition and empirical formula of enamel. 3.2 Methods of calculation of ground coats and covered coats. 3.3 Methods of application of ground coats and cover coats. 3.4 Frits
• Necessity and Process of frit making. 10 21% (14 Marks)

Unit 4 PROCESS FOR ENAMELLING

12 lecture hours

• 4.1 preparation of enamel slip
• ground coats and cover coats. 4.2 Control of enamel slip. 4.3 Methods of application of enamel slip. 4.4 Dry process coating of enamels and Wet process coating of enamels. 4.5 Drying of enamel coats 4.6 List out and explain the types of furnaces used in enameling. 4.7 The defects during firing of enamel coats and their remedies. 4.8 Suggest methods of handling enamel waste
• (28 Marks) Program Name: Engineering Level: Diploma Branch: Ceramic Technology Course / Subject Code: DI03052021 Course/Subject Name: Vitreous Enamel

Unit 5 PROPERTIES AND TESTS OF ENAMEL

• 5.1 Thermal properties of enamel 5.2 Thermal expansion and contraction of enamels 5.3 Thermal shock tests 5.4 Thermal conductivity 5.5 Adherence 5.6 Hardness 5.7 Elasticity 5.8 Compressive strength 5.9 Abrasion 7 14% (07 Marks)