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1. 发明授权

US4449395A Pheological measurement method and apparatus 失效
标题翻译：血液测定方法和装置
公开(公告)号：US4449395A
公开(公告)日：1984-05-22
申请号：US366723
申请日：1982-04-08
申请人： Stuart J. Kurtz , Terry A. De Rossett , Montgomery T. Shaw
发明人： Stuart J. Kurtz , Terry A. De Rossett , Montgomery T. Shaw
IPC分类号： G01N11/04
CPC分类号： G01N11/04
摘要： Method and apparatus for testing thermoplastic material comprising: passing as a stream a fractional, continuous, molten and flowable sample of the material to and successively through each of either a controllable pumping zone maintained at constant temperature and pressure or controllable pressure zone maintained at constant flow rate and temperature, and a die zone to form a continuous strand of the material; measuring the viscosity of the material in the pumping and die zones; providing a measurement of elasticity by obtaining a measurement of percentage of cross-section area swell in the strand in passage from the die zone over a constant length distance downstream of a point of strand marking to a point of strand marking to a point of mark sensing; and combining the viscosity measurement with the elasticity measurement to provide fuller rheological characterization data for the material.
摘要翻译：用于测试热塑性材料的方法和设备，包括：将物料的一部分，连续，熔融和可流动的样品通入到保持在恒定温度和压力下的可控抽吸区域或保持恒定流动的可控压力区域速率和温度，以及模具区域以形成材料的连续线; 测量泵送和模具区域中材料的粘度; 通过在线标记点下游到标记点标记感测点之间的恒定长度距离处获得在模具区域中的股线中横截面积膨胀的百分比的测量，从而提供弹性测量值 ; 并将粘度测量与弹性测量结合起来，为材料提供更全面的流变特性数据。

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