...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polimery >A literature survey of the influence of preform reheating and stretch blow molding with hot mold process parameters on the properties of PET containers Part II
【24h】

A literature survey of the influence of preform reheating and stretch blow molding with hot mold process parameters on the properties of PET containers Part II

机译：热模工艺参数对宠物容器二极管性能影响的预制件再加热和拉伸吹塑模制的影响研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The paper presents a wide analysis of the literature on the modified blow molding process with simultaneous stretching of PET [poly(ethylene terephthalate)] material for storing hot filled drinks. The paper is a continuation of the first part presented earlier [1]. In this part it is presented in detail the impact of stretch blow molding with hot mold process parameters on thermal resistance of PET containers. An analysis of the literature shows that the relaxation of the amorphous phase has the greatest impact on the thermal stability and pressure resistance of the bottle. At the same time, the thermal stability of the bottle increases, and the pressure strength decreases when the relaxation of the amorphous phase is increased, and the crystallites increase to the largest size possible without causing thermal whitening of the material. The measure of relaxation of the amorphous phase is based on the amount of oriented and "rigid" amorphous phase, since the higher the degree of relaxation of the amorphous phase, the smaller the amounts of oriented and rigid amorphous phase. The main parameters of the hot mold SBM process that affect the properties of the hot filling bottle are the intrinsic viscosity of the preform material, the power profile of the heating lamps in the heating oven (there are seven levels of heating lamps), the heating time in the oven and the associated time of temperature-induced crystallization prior to the SBM process, the speed of the stretching rod, the pre-blow delay due to the stretching rod position, the pre-blow pressure, pre-blow duration, air blow pressure, duration of the main blow, temperature profile of the heated blow mold (there are two heat zones for the blow mold, the lateral surface of the bottles and base zone), duration of annealing in the mold, cooling air temperature of a bottle in a blow mold fed by a stretching rod, and the pressure in the feed branch for air cooling of a bottle in a blow mold fed by a stretching rod. Thus, the properties of a bottle or hot fill can be influenced by as many as 20 factors during the SBM process with a hot mold.
机译：本文介绍了对改进的吹塑过程的文献，同时拉伸PET [聚（对苯二甲酸乙二醇酯）]材料来储存热填充饮料。本文是先前呈现的第一部分的延续[1]。在这部分中，详细介绍了拉伸吹塑与热模工艺参数对PET容器的热阻的影响。对文献的分析表明，无定形相的松弛对瓶子的热稳定性和耐压性产生了最大的影响。同时，瓶子的热稳定性增加，并且当增加非晶相的松弛时，压力强度降低，并且微晶的增加可能会增加至最大尺寸，而不会导致材料的热混合。无定形相的弛豫的衡量标准基于取向和“刚性”非晶相的量，因为无定形相的松弛程度越高，取向和刚性无定形相越小。影响热填充瓶的性质的热模SBM工艺的主要参数是预制件材料的固有粘度，加热炉中的加热灯的功率曲线（有七个水平的加热灯），加热在烤箱中的时间和温度诱导结晶的相关时间在SBM过程中，拉伸杆的速度，由于拉伸杆位置引起的预吹延迟，预吹吹压，预吹长持续时间，空气吹气，主吹的持续时间，加热吹塑模具的温度曲线（有两个热带用于吹塑模具，瓶子侧面和基区），模具退火的持续时间，冷却空气温度在由拉伸杆进料的吹塑模具中的瓶子，以及通过拉伸杆供给的吹塑模具中的瓶子的空气冷却的饲料分支中的压力。因此，瓶子或热填充物的性质可以在SBM工艺期间受到多达20个因素的，具有热模具。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号