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Double-air path bidirectional automatic assembling device for high-temperature Hopkinson pressure bar experiment

A Hopkinson pressure bar and automatic assembly technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of large cooling of test pieces, unstable assembly, low success rate, etc., to reduce temperature unevenness, reduce Effect of cold contact time and improvement of assembly success rate

Inactive Publication Date: 2007-01-03
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art, such as the large drop in temperature of the specimen due to leaving the heat source, and the low success rate due to unstable assembly during the high-temperature compression bar experiment, the present invention provides a two-way high-temperature Hopkinson compression bar experiment. Double gas path automatic assembly device

Method used

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  • Double-air path bidirectional automatic assembling device for high-temperature Hopkinson pressure bar experiment
  • Double-air path bidirectional automatic assembling device for high-temperature Hopkinson pressure bar experiment
  • Double-air path bidirectional automatic assembling device for high-temperature Hopkinson pressure bar experiment

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Embodiment 1

[0022] figure 2 , Figure 4 , Figure 5 In, the two-way dual-air circuit automatic assembly device used for the high-temperature Hopkinson pressure bar experiment includes an incident rod 1, a transmission rod 2, and a pushing support (3, 23) respectively arranged on the incident rod 1 and the transmission rod 2. The heating furnace 6 and the gas circuit; the test piece is set in the center of the heating furnace 6, and the pushing supports (3, 23) are respectively composed of a cylinder and a piston. The air path is set as a dual air path, and the propelling air path 11 of the pushing support and the firing air path 15 of the air cannon are set as independent air source air paths; the dual air path contains a total air source 7, an independent sub air source 12, The firing gas path 15, the small gas tank 9, the main valve 10, and the pushing gas path 11 of the air cannon; the connection relationship of the gas path is: the total gas source 7 is connected to the main valve 10 th...

Embodiment 2

[0029] in image 3 , Figure 4 , Figure 6 In, the two-way dual-air circuit automatic assembly device used for the high-temperature Hopkinson pressure rod experiment includes an incident rod 1, a transmission rod 2, and a push support (33, 43) respectively arranged on the incident rod 1 and the transmission rod 2. The heating furnace (6) and the gas path; the test piece is set in the center of the heating furnace 6, the pushing support 33 is composed of a cylinder 35 and a piston 31, and the pushing support 43 has the same structure as the pushing support 33. The air path is set as a dual air path, and the pushing air path of the push support and the air cannon firing air path are set as separate air source air paths; the dual air path contains the total air source 7 and the divided air drawn from the total air source 7. Source 27, the firing gas path 15, the small air tank 9, the main valve 10, and the push gas path 11 of the air cannon; the connection relationship of the gas path...

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Abstract

Two-way double steam paths self-motion assembled equipment for high temperature Hopkinson pressure-bar experiment belongs to material high temperature dynamic mechanics capability research field. Each gas driving rack set on incidence perch and transmission perch and push them towards specimen in assembling to form two-way assemble in order to keep specimen in the availability heating range. Push the driving gas path of rack and separate setting of air cannon startup gas path and set gas chief valve control the switch of driving gas path and air cannon startup gas path. It makes the driving rack and air cannon startup linkage without influence. Set small gas storage tin as driving gas source and control its air pressure to control the driving speed of the driving rack. It can keep the assembled stability of the equipment and enhance assembled success probability. It assures the synchronism of assembled equipment when the stress wave arrives to specimen to avoid the temperature of specimen rapidly drop for leaving heat fountain.

Description

Technical field [0001] The invention belongs to the research field of high-temperature dynamic mechanical properties of materials, and specifically relates to a two-way dual-gas path automatic assembly device for high-temperature Hopkinson pressure bar experiments. The device can ensure the stability of device assembly and the ability of device assembly and stress wave to reach the test piece. Synchronization, and avoid the rapid cooling of the specimen due to leaving the heat source. Background technique [0002] One of the methods of using Hopkinson pressure rods to study the high-temperature dynamic mechanical properties of materials is to keep the waveguide rod and the specimen in a separate state before the experiment, heating only the specimen, and then complete the specimen and the waveguide rod before impact的assembly. This type of method reduces the temperature gradient in the rod due to the separation of the rod and the test piece during heating, but the temperature unev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00
Inventor 谢若泽张方举田常津李思忠
Owner GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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