西得乐PET瓶工艺.pptx

西得乐的热定型工艺Sidel Heat Set Technology适用于敏感饮料 For sensitive beverages主讲人：兰尼 先生 Conducted by Mr. Ludovic LAINE;应用领域 Applications;Titles;基本原理 Basic principle;主要工艺参数 Main parameters;非连线灌装 Off line filling operation;连线吹瓶、灌装Integrated blowing and filling operation;;热灌装 Hot Filling;膨胀、继而负压变形Inflation then collapsing;在包装过程中局部产生压力 Stress exerted locally during packaging;材料固有的特性导致变形 Deformation resulting from the intrinsic properties of the material;Titles;热定型的基本原理Heat set fundamentals;PET的受热特性 PET thermal properties ;材料处于不同状态时的特性 States properties;导致结晶的因素Origin of crystals ;;受热导致的结晶Heat induced crystallinity;PET的双向拉伸：对分子结构的影响Pet bi-orientation : effect on molecular structure ;拉伸及受热共同导致的结晶Combined strain and heat induced crystallinity;吸湿性与软化温度Effect of moisture absorption on Tg;耐热瓶的吸湿过程Kinetic of water absorption in hr bottles (单轮吹塑瓶 - 可口可乐亚洲瓶型 1 wheel bottle - coca Asia shape );结晶度对水分吸收的影响 Effect of crystallinity on water absorption;拉伸吹塑时产生的应力，主要在于 Stresses are induced during stretch blow molding and depend on : 瓶坯设计 Preform design 拉伸速度 Stretching speed 瓶坯温度 Preform temperature 吹瓶速度 Blowing speed 应力的释放对于瓶子合理温度下的热定型至关重要 Stress reduction is essential to proper heat setting for hot fill application 应力的释放比提高瓶子的结晶度更为重要 High crystallinity is not enough and even of lower importance than annealing: 应力在无序状态区域被释放 Stresses are released in the amorphous area;;Titles;单轮吹塑工艺One wheel technology;瓶坯加热条件Preform heat conditioning;SBO二代设备标准加热炉 SBO Series2 standard oven 标准瓶坯加热炉具有高强度加热潜能 Use of the standard oven made possible by the high degree of reserve power available 线性加热炉的特点 Linear oven features 瓶坯受热一致 Reheat consistency 瓶坯受热精确 Reheat accuracy ;温度保持一致High Consistency Temperature Profile;温度十分精确High Accuracy Temperature Profile ;温度的变化程度Temperature Gradients;高效的瓶坯加热Highly Effective Temperature Gradients;瓶坯加热 Preform heating profile;通风系统 Ventilation system;折光板 Reflectors;空气循环 Air recycling (备选 optional);转子 Spindles; 在瓶坯加热炉的出口设有3台