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Bidirectional extrusion capillary rheometer and parallel bidirectional extrusion capillary rheometer

A capillary rheometer and capillary technology, applied in the field of rheology testing, can solve the problems of high labor intensity, low experimental efficiency, waste of materials, etc., and achieve the effects of simplifying physical labor, accurate testing, and saving materials

Active Publication Date: 2012-06-27
如东文园投资开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this feeding test method are: since each test requires re-adding and cleaning the capillary, the operation is cumbersome, the labor intensity is high, the waste of materials is low, and the experimental efficiency is low.

Method used

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  • Bidirectional extrusion capillary rheometer and parallel bidirectional extrusion capillary rheometer
  • Bidirectional extrusion capillary rheometer and parallel bidirectional extrusion capillary rheometer
  • Bidirectional extrusion capillary rheometer and parallel bidirectional extrusion capillary rheometer

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Embodiment Construction

[0025] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0026] figure 1 It is the first embodiment of the bidirectional extrusion capillary rheometer of the present invention, comprising two barrels 2 and a capillary 1 arranged between the two barrels 2, and the capillary 1 and the two barrels 2 are vertically arranged; wherein A barrel 2 is provided with a charging device 21, and the capillary 1 includes a cylinder 11 and a capillary 12 located on the axis of the cylinder, and the ratio of the length of the cylinder 11 of the capillary 1 to the diameter of the capillary 12 is 10 to 20; The two ends of the capillary 1 communicate with the inner chambers of the two barrels 2 respectively, and the two barrels 2 are ...

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Abstract

The invention relates to a bidirectional extrusion capillary rheometer. The capillary rheometer comprises two charging barrels and a capillary tube arranged between the two charging barrels in a detachable mode, wherein a charging device is arranged on one charging barrel; two ends of the capillary tube are communicated with inner cavities of the two charging barrels; and a plunger which is matched with each charging barrel and used for extruding a material to be tested and a driving system for driving the plunger to move are arranged in each charging barrel. By the bidirectional extrusion capillary rheometer, the two charging barrels are arranged at the two ends of the capillary tube, so that the aim of one-time charging and multi-time testing is fulfilled, complicated physical labor is simplified, testing efficiency is improved, the material is saved, and the cleaning work of the charging barrels and the capillary tube is eliminated; and different capillary tubes can be selected fordifferent materials to be tested, so that the different materials to be tested are tested.

Description

technical field [0001] The invention relates to the technical field of rheological testing, in particular to a bidirectional extrusion capillary rheometer and a parallel bidirectional extrusion capillary rheometer. Background technique [0002] Capillary rheometer can be used to measure the fluidity and solidification speed of thermosetting materials, draw the stress change curve and plasticizing curve of thermoplastic materials, and measure the temperature of softening point, melting point and flow point. It can measure the viscosity and viscous flow activation of polymer melt, and also study the process conditions of melt spinning. The traditional capillary rheometer, whether it is a single-tube capillary rheometer or a double-tube capillary rheometer that has appeared in recent years, is a one-way extrusion type, that is, the material is fed from the upper end of the barrel, and the material is extruded through the capillary outlet. The next experiment needs to re-feed f...

Claims

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Application Information

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IPC IPC(8): G01N11/04
Inventor 廖华勇陶国良刘春林
Owner 如东文园投资开发有限公司
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