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Introduction to glass products 2008

Introduction to glass products 2008. Technical Advisory Service. Glass products. Composition and manufacturing Glass properties Glavebel’s organisation Raw products Processed products How to recognize a type of glass Cutting and edge working.

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Introduction to glass products 2008

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  1. Introduction to glass products 2008 Technical Advisory Service

  2. Glass products • Composition and manufacturing • Glass properties • Glavebel’s organisation • Raw products • Processed products • How to recognize a type of glass • Cutting and edge working

  3. Glass products - Composition and manufacturing • continuous fabrication process ( 12 ans) • 500 m long • production capacity: 500 to 700 Tons / day • 2000 Tons melted glass in the furnace • 3 days between in and out

  4. Glass products - Composition  Sodalime silicate glass  73 % Sand SiO2  glass  15 % Soda Na2O  melting  10 % Calcium CaO  stabilising agent  2 % Addictives  resistance, color, ...

  5. Glass products – manufacturing: furnace Furnace 1600 °C 1050 °C

  6. Glass products – manufacturing: furnace

  7. 1580°C AIRINLET fume air FUME OUTLET left right Glass products – manufacturing: furnace

  8. TOP Rollers Lift Out CVD Glass products – manufacturing: tin bath 1050 °C 600 °C

  9. Glass products – manufacturing: tin bath • Tin: 7 cm deep (180 T) • Length: 70 m • Tin density: 6,5 kg/dm³ • Glass density: 2,3 kg/dm³

  10. Glass products – manufacturing: cooling zone 600 °C 50 °C

  11. Glass products – manufacturing: cutting & stacking

  12. Glass products – Some statistics A float line produces more or less 700 tons by day, it means: • 70 000 m² of 4 mm float by day • 35 full trucks by day • 900 m long of 4 mm float by hour • 22 km long of 4 mm float by day • 2 100 000 m² of 4 mm float by month

  13. Glass products • Composition and manufacturing • Glass properties • Glavebel’s organisation • Raw products • Processed products • How to recognize a type of glass • Cutting and edge working

  14. Glass products – Glas properties • Not crystalised solid • Perfectly elastic • No permanent deformation • Fragile break • Young’s modulus: 70 000 N/mm²

  15. Glass products – Glas properties • Volume mass: 2500 kg/m³  1 m² of 4 mm thickness = 10 kg  5 m² of 10 mm thickness = 125 kg • Note: m² of reduce meter (m²rs):1 mrs is equal to 1 m² in thickness 2 mm (5 kg/m²)

  16. Glass products • Composition and manufacturing • Glass properties • AGC Flat Glass Europe’s organisation • Raw products • Processed products • How to recognize a type of glass • Cutting and edge working

  17. Raw Glass Division Processed Glass Division AutomotiveMirrors Coatings ArchitecturalGlass Float SpecialProducts Laminated Glass Fire ResistantGlass Cast Glass Appliances UnprocessedMirrors

  18. Glass products • Composition and manufacturing • Glass properties • AGC’s organisation • Raw products • Processed products • How to recognize a type of glass • Cutting and edge working

  19. Glass products – Raw products Raw products: - Float • Patterned glass • Wired glass • Profiled glass • Glass blocks

  20. Raw glass products - Float Melting elements(15 %) Stabilizing elements(15 %) Sand (70 %) Soda Limestone Dolomite Feldspath Furnace Tinted glass + metal oxydes

  21. Raw glass products - Float • Characteritics: • Flat • Annealed (so cuttable) • Translucent • Clear or colored • Thicknesses: (extra thin)-3-4-5-6-8-10-12- 15-19-(22)-(25) mm • Maximum dimensions: 6 m x 3,21 m

  22. Raw glass products - Float Clear Extra-clear Green Bronze Grey Pink Blue

  23. BU Float - 18 units  2  2      2 4 3   

  24. Glass products – Raw products Raw products: - Float • Patterned glass • Wired glass • Profiled glass • Glass blocks

  25. Raw glass products – Patterned glass

  26. Raw glass products – Patterned glass

  27. BU Cast Glass - 2 units  

  28. Glass products – Raw products Raw products: - Float • Patterned glass • Wired glass • Profiled glass • Glass blocks

  29. Raw glass products – Wired glass

  30. Raw glass products – Wired glass

  31. Glass products – Raw products Raw products: - Float • Patterned glass • Wired glass • Profiled glass • Glass blocks

  32. Raw glass products – Profiled glass

  33. Glass products – Raw products Raw products: - Float • Patterned glass • Wired glass • Profiled glass • Glass blocks

  34. Raw glass products – Glass bloks => Molted glass

  35. Raw glass products – Glass blocks

  36. Raw glass products – AGC’s labels

  37. Glass products • Composition and manufacturing • Glass properties • AGC’s organisation • Raw products • Processed products • How to recognize a type of glass • Cutting and edge working

  38. Processed products • Coated glass • Mirrors • Glass with treated surfaces • Laminated glass • Tempered glass (toughened and HS) • Chemically toughened glass • Curved glass • Double glazing • Miscellaneous

  39. Processed products – Coated glass

  40. Processed products – Coated glass • Sort of coatings : • pyrolytic: on the manufacturing line (float) (‘‘hard coating’’) • Vaccum coating: in a magnetron (‘‘soft coatings’’) • Aims : • Solar control • Thermal insulation • Reflection limitation • ...

  41. Processed products – Pyrolitic coated glass 1 2 2 • To the Chemical Vapour Deposition (CVD) (2) • Improved lateral uniformity • Higher reaction yields • Less cooling of the glass surface è Multilayer coatings • From the ‘spray’ process (1) • Projection of microdroplets

  42. Buffer Buffer Unload Washer Load Coat zones Inspection Processed products - Magnetroncoated glass • ‘‘Off-line’’ production process • Vaccum sputtering 

  43. Magnets Cathode (-) + + Gas ions (+) + + + Anode + + Gas Coating Glass Processed products - Magnetroncoated glass

  44. BU Magnetron - 4 units    

  45. Pyrolytic Magnetron Coating resistence high low Use in SG yes sometimes Use in DG yes yes Treatments possibilities toughening curving laminating In some cases, toughening, curving and laminating Processed products - Coated glass

  46. Processed products • Coated glass • Mirrors • Glass with treated surfaces • Laminated glass • Tempered glass (toughened and HS) • Chemically toughened glass • Curved glass • Double glazing • Miscellaneous

  47. Processed products – Mirrors

  48. Silvering Drying Polishing Sensitising & Activation Passivation Washing Drying Paint curing Metallic curing Paint layer Cooling

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