聚酯PET热灌装饮料瓶基础知识（43页)ppt课件

1、Range范围Advantages效益Specifics细节Heat-resistant bottles热灌装瓶Description描画SpecificsBasic principle 根本原理Hot-filling 热灌装Pasteurization 巴氏杀菌Purpose of heat-setting 加热设定的目的Water uptake concept 吸水概念Basic principle 根本原理Blow-molding of PET bottles to withstand high temperatures with no deformation所吹制的PET瓶必需能接受高

2、温而不变形standard bottles are deformed under the effect of heat from 60 C upwards规范的瓶子加热至60 C 以上开场变形adaptation of heat conditioning and blow-molding processes enables bottles to withstand temperatures of up to 88C适当的加热条件和吹瓶工艺能使瓶子接受88C的温度Application to the packaging of sensitive drinks such as isotonics,

3、 fruit juices, teas etc.运用作敏感饮料包装例如等压、果汁、茶等Hotfilling 热灌装Pasteurization 巴氏杀菌Hotfilling 热灌装Operating method操作方法The liquid is raised to a temperature enabling it to be sterilized液体温度提升至能灭菌的温度 The bottle is filled at this temperature (up to 88C)瓶子在这温度下(高至 88C)灌装Sterlization of the cap is obtained by co

4、ntact with the hot liquid瓶盖与热的液体接触进展灭菌 Gradual cooling 分段冷却 Specific stress factors 特殊的应力要素Inflation then collapsing 膨胀后扁平Local deformation 部分变形Contraction 收缩Inflation then collapsing膨胀后扁平Rise in temperature of the material combined with mechanical stress含有机械应力的资料温度升高material is softened, easily def

5、ormed资料变软，容易变形Hydrostatic pressure exerted by the liquid on the walls: bottle inflation液体在瓶壁上产生向外的静压：瓶膨胀 Expansion of the air in the head area: increased inflation 顶部空气膨胀：添加膨胀Effect of internal vacuum pressure resulting from the cooling of the liquid and the air in the head area: phenomenon known as

6、 “collapsing由液体和瓶颈空气冷却而产生真空压力：知景象如 “扁平Local deformation部分变形Stress exerted locally during packaging在包装过程中外界压力部分地作用Mechanical stress exerted by the cap: risk of deformation封盖的机械应力：变形的风险Conveying of the filled bottles while still hot: deformation on contact with the transport and guiding equipment 已灌装的

7、瓶保送静止受热：与保送链条接触和导向处变形Contact of the unstretched neck with the hot liquid: the material becomes plastic, deformation is possible未拉伸的瓶颈与热的液体接触：资料成为塑料态，有能够变形Contraction 收缩Deformation resulting from the intrinsic properties of the material 资料的固有特性导致变形 Release under the effect of heat of the stress facto

8、rs caused by stretching and which remain in the material after blow-molding拉伸和吹塑后残留在资料里的应力在热量的作用下被释放 Deformation of the material which naturally tends towards a state in which the level of stress is lowest资料的变形自然趋向于低应力程度的形状“Memory effect“记忆效应Pasteurization 巴氏杀菌Principle 原理Filling at temperatures clo

9、se to ambient 灌注温度接近于周围环境Pasteurization tunnel. Feethrough of the bottle filled and capped under hot showers. A temperature of 75C is maintained in the core of the liquid for 10 min (25 min at 65C for carbonated drinks)已灌注和封盖的瓶子经过有热喷淋的隧道进展巴氏杀菌，液体中心温度维持在75C 、10分钟 ( 汽水为65C、25分钟)Cooling under showers a

10、t between 20 and 40 C喷淋冷却至20 40 C之间Specific stress factors 特殊的应力要素Inflation膨胀Contraction收缩Inflation 膨胀Rise in temperature of the material combined with mechanical stress含有机械应力的资料温度升高expansion of the air in the head area: inflation of the bottle顶部区域空气膨胀：瓶子膨胀Release of CO2 by carbonated drinks: increa

11、sed inflation 碳酸饮料CO2 释放：添加膨胀Internal pressure persists after cooling, despite the decrease in volume of the liquid.冷却后内部压力继续，虽然液体体积减少Contraction收缩Deformation resulting from the intrinsic properties of the material资料的固有特性导致变形 Release under the effect of heat of the stress factors caused by stretchin

12、g and which remain in the material after blow-molding拉伸和吹塑后残留在资料里的应力在热量的作用下被释放 Deformation of the material which naturally tends towards a state in which the level of stress is lowest资料的变形自然趋向于低应力程度的形状“Memory effect“记忆效应Purpose of heat-setting加热设定的目的Improvement in heat resistance 改良耐热性Increase in cr

13、ystallinity添加结晶度Prevention of contraction防止收缩Limited generation of induced stress (process and preform design)限制诱导应力的产生(消费和瓶坯设计)Relaxation of residual induced stress (molds)残留的诱导应力松弛(模具)Increase in crystallinity添加结晶度Offset of the glass transition temperature 抵消玻璃化转变温度Glass transition temperature rai

14、sed to a level higher than the temperatures to which the bottle will be subjected 玻璃化温度升高至较高程度会影响瓶子Enhanced development of spherulitic crystallization 球状结晶的开展增多Operating rangeOperating rangeGlass transition temp.玻璃化温度Glass transition temp.玻璃化温度Development of spherulitic crystallinity球状结晶的开展Enhanced

15、heat-conditioning of the preform in the oven and hot mold 增大加热炉和模具内瓶坯的加热温度High degree of crystallinity 提高结晶度Preform undergoes powerful heat-conditioning before being quickly transferred for blow-molding. 瓶坯进入吹模之前充分受热Enhances the generation of spherulitic crystallization in the bottle on contact with

16、 the hot mold after the start of crystallization caused by bi-orientation.当由拉伸引起的结晶开场后瓶与热模接触所产生的球状结晶添加30 to 35 % compared with a maximum of 25 % for standard bottles 与最大结晶度为25%的规范瓶相比热灌装瓶结晶度为3035%Reduction in the amorphous phase which is more sensitive to heat调理热量减少无定型形状Limited induced stress 限制诱导应力S

17、low-speed stretching 较慢的拉伸速度Stretching speed is sufficiently slow to enable the rearrangement of the molecular chains as deformation takes place拉伸速度较慢使分子链重新整理是 发生变形的缘由 Molecular 分子rearrangement limits the stress induced by stretching拉伸限制诱导应力的产生V1V2 25%Yes有No无65C for 25 minCarbonated drinks*碳酸饮料Appro

18、x. 20C 25%Yes有No无Hot-filling 热灌装Pasteurization 巴氏杀菌Performance性能The temperature resistance performance characteristics are indicated in specific humidity uptake conditions (2 500 ppm) 耐热性能温度是指在特定的吸湿条件下2 500 ppm) Output rates depend on process requirements and specific production factors产量依赖于消费需求和特定的

19、产品( * ) Specific bottle base may be required可以按照需求设计瓶子底部85C to 88CQuality 质量Process precision消费准确度Precision of heating profile, including preferential heating if necessary加热分布的准确度，包括能否需求优化加热Quality of temperature gradients 温度梯度的质量Optimized material distribution and stretching: potential weight reduc

20、tion of containers最正确的资料分布和拉伸：潜在减轻容器的分量Process regularity消费调整Measurement of three temperature points on the preform: same thermal history file for all preforms丈量瓶坯的三个温度点；一切瓶坯的加热条件一样Consistent process to within one degree for all preformsNo loss of item quality一切瓶坯在同一温度下消费，具有一样的质量Quality质量Process pow

21、er消费动力High power reserve 较高的备用功率Efficiency and precision of the process for a very wide range of preforms thanks to wide processability windows瓶坯具有很宽的消费效率和准确度得益于有较宽的加工窗口Neck protection 瓶口维护Ventilated spindles: prevent over-heating of necks during heat conditioning 排风芯轴：防止加热调理过程中瓶口受热Independently adj

22、ustable protection rails: efficiency and precision of protection独立地调理维护挡板：维护效能和精细度Blow-molding with bell nozzle: prevents any risk of deformation during blow-molding 贝尔吹嘴吹瓶：防止吹瓶其间有瓶口变形的危险No deformation of necks possible瓶口不会变形Quality of appearance外观质量Quality of cavity impression模腔压痕质量Performance of h

23、eat conditioning ensures perfect cavity impression加热调理的性能确保模腔压痕完美Qualityof stripping 脱模质量Efficiency of air-cooling 空气冷却的效果Item retention for stripping坚持脱模外形Major importance due to the functional requirements of HR design最重要的是所要求的热灌装瓶设计 Productivity消费才干Blow wheel 吹瓶轮Combination of mechanical and elec

24、tronic controls based on continuous rotary mechanics机械和电气控制相结合使机器能延续运转Simple kinematics with a reduced number of transfers and active mechanical safety systems减少传动数量的简单运转和灵敏的机器平安系统Reliability at high output rates较高的产量可靠性Blow-molding stations with reduced inertia减少惯性的吹瓶位置High output transfer of items

25、 at reduced inertia 减少惯性的传送臂Optimum productivity with up to 1,200 containers per hour and per mold (mold output increased by 20 %)最适宜的产量为1200个/小时/模每模产量添加了20%Maximum mechanical output1,400 bph per mold最大产量为1400个/小时/模Versatility多功能性Quick-change concept for format changeover 快速换模概念Reduced number of cus

26、tomization parts减少用户零配件数量Quick-Change customization parts, replaced fast with no tooling无须太多的工具快速改换模具Quick-change format快速换模的方式HR / Standard Versatility 热灌装/规范性能Reversible adaptation of a standard machine 一台规范的设备Standard oven 规范加热炉Standard wheel规范吹瓶轮Reconfiguration for standard bottles 规范瓶子的重新配置Reco

27、nfiguration process (no work on oven required)重新配置消费工艺(没有所要求的加热炉)Drain of the heat-conditioning oil circuit for the molds and use of water cooling可调理的模具油路加热和运用冷却水Cooling possible by cold oil circuit (enables elimination of the drain operation)由冷却油路冷却(能排除排水操作)Air-cooling solenod valve control at 0空气冷却电磁阀控制Bottle design know-how瓶子设计的技巧All the services involving the bottle PET are combined on a single site: bottle design, feasibility testing on dedicated machines, test laboratory, mold shop包括PET瓶在内的一切效力集合在一个简单的地点：瓶子设计、机器的可行性测试、测试实验室、模具中心20 years exp