A heating device and heating method for heating a sample before a plate impact test

A heating device, the technology before the experiment, applied in the direction of electric heating device, heating element, measuring device, etc., can solve the problem that the use effect cannot be achieved

Active Publication Date: 2020-10-27
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 the glue melts, there is no base to fix the electrode plate and it will still slide. , so in the flat plate impact test, the above-mentioned limit-type dynamic loading and heating structure cannot achieve the use effect

Method used

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  • A heating device and heating method for heating a sample before a plate impact test
  • A heating device and heating method for heating a sample before a plate impact test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a heating device for heating the sample before the plate impact test, which can heat the sample and change the initial temperature of the sample without affecting the progress of the plate impact test.

[0033] Considering the use environment of the heating device, the heating device must be simple in structure, small in size, and able to cooperate with the flange of the target plate chamber to meet the required heating power; to meet a certain heating power, a certain heating coil needs to be wound, and the heating structure requires 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 should not be too long. Therefore, the designed heating device needs to effectively heat the sample under the premise of meeting the above conditi...

Embodiment 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 at the position corresponding to the sample 5 in the axial through hole of the heat conduction tray 1; The probe of the thermocouple is in contact with the sample 5, and the temperature of the sample 5 is detected and fed back by the thermocouple. Control the power module of the heating coil 2 according to the temperature of the sample 5 fed back by the thermocouple. When the temperature of the sample 5 fed back by the thermocouple is consistent with the set initial temperature, disconnect the power module of the heating coil 2; When the temperature of the sample 5 fed back is lower than the set initial temperature, the power supply 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 temperature during the experiment is generally below 200°C, the heat...

Embodiment 3

[0044] On the basis of embodiment 2, the concrete installation, working process of heating device are illustrated:

[0045] A. Wind the heating coil 2 in the annular groove of the heat conduction tray 1: wind the heating coil 2 from the inner annular groove to the outer annular groove in sequence. Considering that the heating coil 2 will burn out if the temperature is too high, the winding coil is two layers;

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

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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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Patent Type & Authority Patents(China)
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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