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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