Preliminary Outline for Seminar for Hot Dip Galvanizing Lines (HDGL) and Continuous Anneal Lines (CAL) Houston, TX, USA 8 & 9 February 2017 1. Seminar Introduction 2. What Types of Hot Dip Galvanizing Lines? a. Construction and White Grade Horizontal HDGL i. Combination Direct Fired Furnace and Radiant Tube Furnace 1. In Line Annealing 2. Heat to Coat ii. Induction Heated 1. Heat to Coat b. Construction and White Grade Vertical HDGL i. Combination Direct Fired Furnace and Radiant Tube Furnace ii. All Radiant Tube Furnace c. Exposed and Unexposed Automotive HDGL i. All Radiant Tube Furnace d. AHSS and UHSS HDGL Utilizing Selective Oxidation i. Combination Horizontal Direct Fired Furnace and Radiant Tube Furnace ii. Combination Vertical Direct Fired Furnace and Radiant Tube Furnace iii. All Radiant Tube Furnace 3. What Types of Continuous Annealing Lines? a. Exposed and Unexposed Automotive HDGL i. All Radiant Tube Furnace b. AHSS and UHSS HDGL Utilizing Selective Oxidation i. Combination Horizontal Direct Fired Furnace and Radiant Tube Furnace ii. Combination Vertical Direct Fired Furnace and Radiant Tube Furnace iii. All Radiant Tube Furnace
5. Basics of Thermal Cycles a. Construction Grade Anneal and Heat to Coat Thermal Cycles for HDGL iii. Jet Cooling Temperatures and Cooling Rates iv. Pot Temperatures v. Afterpot Cooling Temperatures and Cooling Rates b. Exposed and Unexposed Automotive HDGL iv. Overaging Times v. Final Cooling Temperatures and Cooling Rates c. Convention CAL iv. Overaging Times v. Final Cooling Temperatures and Cooling Rates d. AHSS/UHSS CAL iv. Quenching Temperatures and Cooling Rates v. Reheating Temperatures and Heating Rates vi. Overaging Times vii. Final Cooling Temperatures and Cooling Rates viii. Quenching and Exit Temperatures
6. Pre-Pot and Post-Pot Cycles and Required HDGL Furnace Components. a. Galvanized (GI) Coating i. Explanation of Galvanized (GI) Coating Process ii. Galvanized (GI) Coating Uses iii. Exposed Versus Unexposed Galvanized (GI) Process iv. Furnace Components Needed to Process Galvanized (GI) Material b. Galvanneal (GA) Coating i. Explanation of Galvanneal (GA) Coating Process ii. Galvanneal (GA) Coating Uses iii. Exposed Versus Unexposed Galvanneal (GA) Process iv. Furnace Components Needed to Process Galvanneal (GA) Material c. Galvalume (GL) Coating i. Explanation of Galvalume (GL) Coating Process ii. Galvalume (GL) Coating Uses iii. Furnace Components Needed to Process Galvalume (GL) Material d. Galfan (GF) Coating i. Explanation of Galfan (GF) Coating Process ii. Galfan (GF) Coating Uses iii. Furnace Components Needed to Process Galfan (GF) Material e. Aluminize (AL) Coating i. Explanation of Aluminize (AL) Coating Process ii. Aluminize (AL) Coating Uses iii. Furnace Components Needed to Process Aluminize (AL) Material
7. Revamping and Rebuilding of Existing HDGL and CAL for Increased Capacity, Quality, and New Processes. a. Revamping of Existing Direct Fired Furnace Equipment i. Addition of Direct Fired and Non-Oxidizing Sections 1. Increased Heating 2. Selective Oxidation 3. Improved Cleaning to Minimize Use of Cleaning Section ii. Addition of New Burner Technology for Increased Production and Less Emissions iii. Addition of Direct Flame Impingement for Increased Capacity iv. Addition of Vertical DFF/NOF Furnace for L Shape Configuration b. Revamping of Existing Radiant Tube Furnace Equipment i. Addition of Different Tube Design for Additional Capacity 1. Use of U, W, P, and SERT Radiant Tubes 2. Converting Existing Horizontal Sections to Vertical Sections a. Increased Heating b. Increased Soaking ii. Addition of New Burner Technology for Increased Production and Less Emissions c. Revamping of Existing Pre-pot Cooling d. Revamping of Existing Post-pot Cooling
8. Fundamentals of Combustion (Taken from Bloom Regional Combustion Seminars) a. Industrial Burners b. Direct Fired Burners c. Radiant Tube Burners d. Pre-Heated Air Effects (Recuperation) e. Ratio Control and Burner Turndown f. Heat Transfer Mechanisms 9. Question and Answer Session 10. Adjournment