Heating device and heating method for heating sample before flat plate impact experiment

A heating device and pre-experimental technology, applied in the direction of electric heating devices, heating elements, measuring devices, etc., can solve problems such as inability to achieve the use effect, achieve the effect of controllable temperature rise and rate, small overall structure, and improve heating efficiency

Active Publication Date: 2020-02-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the above-mentioned limit-type dynamic loading and heating structure, since the flying piece needs to hit the cutting board-sample-window head-on, and the middle of the whole epoxy resin is penetrated, after

Method used

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  • Heating device and heating method for heating sample before flat plate impact experiment
  • Heating device and heating method for heating sample before flat plate impact experiment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1:

[0032] This embodiment provides a heating device for heating up the sample before the plate impact experiment, which realizes heating of the sample and changes the initial temperature of the sample without affecting the plate impact experiment.

[0033] Considering the use environment of the heating device, it is required that the heating device must be simple in structure, small in size, and able to fit the flange of the target plate chamber to meet the required heating power; and to meet a certain heating power, a certain heating coil needs to be wound, and the heating structure needs Sufficient section length. Considering that the thickness of the sample is thin, the effective heating area is small, and the test system device is close to the flange of the target plate chamber, the heating structure cannot hinder the test system, so the section length cannot be too long. Therefore, the designed heating device needs to effectively heat the sample under the pre...

Example Embodiment

[0040] Example 2:

[0041] On the basis of Example 1, in order to effectively heat the sample 5 to the set initial temperature, a thermocouple keyway 6 is provided in the axial through hole of the thermal conductive tray 1 at a position corresponding to the sample 5; the thermocouple keyway 6 is provided with a thermoelectric Couple, the probe of the thermocouple is in contact with sample 5, and the temperature of sample 5 is detected and fed back by the thermocouple. The power module of heating coil 2 is controlled according to the temperature of sample 5 fed back by the thermocouple. When the temperature of sample 5 fed back by the thermocouple is consistent with the set initial temperature, the power module of heating coil 2 is disconnected; When the feedback temperature of the sample 5 is lower than the set initial temperature, the power module of the heating coil 2 is turned on, so that the sample 5 can be kept at a constant initial temperature.

[0042] Since the initial tem...

Example Embodiment

[0043] Example 3:

[0044] On the basis of Example 2, the specific installation and working process of the heating device are described:

[0045] A. Wrap the heating coil 2 in the annular groove of the thermally conductive tray 1: Wrap the heating coil 2 from the inner annular groove to the outer annular groove in turn. Considering that the heating coil 2 will be burnt if the temperature is too high, the winding coil is divided into two layers;

[0046] B. First place the thermally conductive tray 1 wrapped with the heating coil 2 on the horizontal reference table, then put the cutting board 4 into the round hole section of the thermally conductive tray 1, and use heat-resistant glue to glue the cutting board 4 laterally to the round hole section Inside, glue sample 5 with heat-resistant glue on the chopping board 4, place a thermocouple in the thermocouple keyway 6 so that the thermocouple probe touches sample 5, and fix the thermocouple with heat-resistant glue, and then glue it wi...

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Abstract

The invention relates to the technical field of flat plate impact experiments, in particular to a heating device and method, and provides a heating device and a heating method for heating a sample before a flat plate impact experiment. The heating device comprises a heat conducting tray and a heating coil. The heat conducting tray is provided with a through hole along the axis. The heat conductingtray is also provided with an annular groove coaxial with the through hole. The heating coil is wound in the annular groove. The heating coil is connected with a temperature regulating circuit. The sample area is heated by the heating coil before the flat plate impact experiment is performed. The device can effectively heat the sample and perform the flat plate impact experiment and has a small overall structure and a simple structure and can effectively heat the sample without affecting the flat plate impact experiment and the use of the velocity measuring system.

Description

technical field [0001] The invention relates to the technical field of plate impact experiments, in particular to a heating device and a heating method. Background technique [0002] The dynamic behavior of energetic materials has a crucial influence on their ignition and detonation processes. Plate impact experiments are widely used to study the dynamic mechanical response and deformation mechanism of energetic materials, and the initial temperature T 0 It is an important parameter in the study of energetic single crystals. The difference in initial temperature will directly affect the dynamic mechanical response and deformation mechanism of energetic materials. Therefore, it is very important to use plate impact experiments to study the dynamic mechanical response of energetic materials at different initial temperatures. [0003] At present, the plate impact experiment at room temperature is driven by a light gas cannon to drive the flyer to hit the target system. The s...

Claims

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Application Information

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IPC IPC(8): H05B3/54G01N3/02G01N3/30H05B1/02H05B3/06
CPCG01N3/02G01N3/30G01N2203/0226H05B1/02H05B3/06H05B3/54
Inventor 王昕捷丁凯黄风雷吕中杰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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