A model of stabilizer roll bearing for a continuous hot-dip galvanizing line

...........................................................................................................ii ACKNOWLEDGEMENTS...................................................................................... iii LIST OF FIGURES................................................................................................vi LIST OF TABLES ..................................................................................................ix NOMENCLATURE .................................................................................................x CHAPTER 1INTRODUCTION............................................................................. 1 1.1. The Continuous Hot Dip Galvanizing Process............................................. 1 1.2. Problems faced by galvanizers.................................................................... 4 CHAPTER 2 – LITERATURE REVIEW ................................................................. 6 2.1. Metallurgy of the galvanize coating ............................................................. 6 2.2. Metallurgy of Aluminum with the Steel....................................................... 10 2.2.1. Percentage of Aluminum in the coating .......................................... 11 2.3. Selection of Bearing Type ......................................................................... 13 2.3.1. Stresses acting on the Bearing....................................................... 14 2.4. Coating Types ........................................................................................... 17 2.4.1. Galvannealed Coatings .................................................................. 17 2.4.2. Galvalume Coatings ....................................................................... 18 2.5. Control of Coating thickness & its significance .......................................... 22 2.5.1. Coating Weight Range (Minimum/Maximum Thickness) ................ 23 2.5.2. ASTM Coating Designations........................................................... 26 2.6. Material Optimization 316L Stainless Steel ............................................. 29