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A method for raising the temperature of a sample prior to a dynamic loading process

A dynamic loading and sample technology, applied in the preparation of test samples, etc., can solve problems such as large error in results, and achieve the effect of improving loading quality, improving measurement accuracy, and accurate data

Inactive Publication Date: 2018-01-09
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for heating up the sample before the dynamic loading process, to solve the problem of large error in the results caused by the existing heating method, and to achieve the purpose of improving the accuracy of the experimental measurement

Method used

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  • A method for raising the temperature of a sample prior to a dynamic loading process

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Embodiment

[0024] Such as figure 1 Shown, a kind of method of the present invention is used for sample heating up before dynamic loading process, comprises the following steps:

[0025] (A) Preparation of experimental materials: electrode plate 1 with a polished surface, a cylindrical sample with a diameter of 10 mm, a thickness of 1 mm and polished on both sides 4, and a polished LiF window 3;

[0026] (B) Fix sample 4: apply glue on both sides of sample 4 and bond them to the electrode plate and LiF window 3 respectively;

[0027] (C) Fasten sample 4: Before the glue solidifies, limit the LiF window 3, sample 4, and electrode plate 1 in the area where the sample is installed, and use the limit loading device to apply continuous pressure: the limit loading device includes positioning Frame 9, the positioning frame 9 is fixed on the electrode plate 1 through a plurality of fixing screws 7, the positioning frame 9 is provided with a limit rod 8 suspended above the sample 4, and the botto...

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Abstract

The invention discloses a method for raising the temperature of a sample before a dynamic loading process. A continuous pressure is applied by setting a limit loading device: a positioning frame is included, and the positioning frame is fixed on an electrode plate through a plurality of fixing screws. A limit rod suspended above the sample is arranged on the top, a limit washer acting on the sample is arranged at the bottom end of the limit rod, and a pressure spring is set on the outside of the limit rod between the limit washer and the positioning frame. In the present invention, after the sample is fixed, by applying continuous pressure to the sample, the glue can be extruded from the interlayer after the glue melts during the heating process, while the sample still maintains the original position at this time. Due to the continuous application of pressure, the sample and The gap between the electrode plates with polished and flat surface, and between the sample and the LiF window with polished surface eliminates the occurrence of displacement, thereby achieving the purpose of improving the loading quality, making the experimental data more accurate and improving the measurement accuracy.

Description

technical field [0001] The invention relates to the field of research on dynamic behavior of materials such as phase transition, constitutive relationship, and state equation, and in particular to a method for raising the temperature of a sample before a dynamic loading process. Background technique [0002] The initial temperature T 0 is an important parameter. The difference in the initial temperature directly leads to the difference in the mechanical conditions required for the phase transition of the material, resulting in the difference in the expression form of the constitutive relationship and the equation of state. In order to study the influence of initial temperature on the dynamic behavior of materials, it is usually necessary to change the initial temperature state of the sample before using dynamic loading techniques such as gas cannon and magnetic drive ramp loading technology to study the dynamic behavior of materials, so that the sample area The temperature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
Inventor 蔡进涛税荣杰吴刚种涛
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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