Spiral multifunctional test device and method for physical properties of materials

A testing device and physical property technology, which is applied in the field of spiral multifunctional material physical property testing device, can solve the problems of result error and low test accuracy, and achieve the effect of reducing displacement error and ensuring volume accuracy

Inactive Publication Date: 2018-06-01
株洲市智汇知识产权运营服务有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the particularity of polymer materials, most of the existing physical property testing devices on the market are not suitable for testing polymer materials, and there are errors in the obtained results, resulting in low test accuracy.

Method used

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  • Spiral multifunctional test device and method for physical properties of materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a spiral multifunctional material physical property testing device.

[0038] like figure 1 As shown, a spiral multifunctional material physical property testing device includes a container 1, which is a cylindrical container with an internal thread, and its material can be metal, ceramics, glass, etc., preferably metal. The outer surface of the container 1 is a heater 2, and the heating method can be resistance heating, infrared heating, water, oil bath heating, etc., and resistance heating is preferred in this embodiment.

[0039] The outer surface of the piston 4 is threaded, which cooperates with the inner thread of the container 1. Through the rotation of the piston, the piston 4 can move up and down in the container 1, so as to apply pressure to the material and adjust the volume, and has good sealing performance. The piston 4 is equipped with an exhaust valve 13, which can discharge gas smoothly. When the valve of the exhaust valve 13 is ...

Embodiment 2

[0047] This embodiment provides a test method of a spiral high-precision multifunctional material physical property testing device in Example 1, and the specific steps are as follows:

[0048] S1. First weigh material 3 of a certain quality, add it to container 1, start heater 2, heat material 3, and make it melt into a melt;

[0049] S2. Start the drive source 7, make the external thread of the piston 4 cooperate with the internal thread of the container 1 to rotate and descend, open the exhaust valve 13, and when the piston 4 descends to the surface of the melt and contacts the melt, turn off the drive source 7 and close the exhaust valve 13. Collect initial data such as temperature, pressure, and displacement of the material 3 through the sensor 5 and the measuring device;

[0050] S3. Start the driving source 7 to make the piston 4 continue to descend, the melt pressure of the material 3 increases, and collect the material pressure, temperature, and volume data; wherein, k...

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Abstract

The invention relates to a spiral multifunctional test device for physical properties of materials. The device comprises a container, a disc piston matched with an outlet of the container, a driving device, a measuring device and a sensor, wherein the container is cylindrical and is provided with three closed sides and an internal thread, and a heating device is arranged on the outer surface of the container; an exhaust system is arranged on the piston, an external thread matched with the internal thread is arranged on the outer side surface of the piston, and the piston can move vertically inthe container by rotation of the piston; the measuring device comprises a measuring ruler and a slider. The high-precision threads are formed on the inner wall of the container and the outer side surface of the piston, the piston can rotate and move vertically in the cylindrical container under thread rotation, so that seal can be guaranteed by thread connection, displacement errors can be reduced, and pressure stability and volume stability can be guaranteed; meanwhile, the position of the piston is detected in real time by a range unit, and volume precision can be guaranteed.

Description

technical field [0001] The invention belongs to the field of material testing, and more specifically relates to a spiral multifunctional material physical property testing device and method. Background technique [0002] Compared with small molecule materials, polymer materials have high melting temperature (generally higher than 100°C), both viscosity and elasticity, high apparent viscosity, long relaxation time, and hysteresis between deformation (volume) and stress (pressure). Non-linear relationship, that is, there is a phase difference. Therefore, it is difficult to test the volume, temperature, and pressure relationship curves of polymer materials under high temperature and high pressure. Especially in the case of external ultrasonic and other physical fields, the volume change of polymer materials is more complicated. , and the volume of the material is realized by a large number of molecular chains occupying a certain space position and achieving equilibrium motion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 胡维维
Owner 株洲市智汇知识产权运营服务有限责任公司
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