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

A Hopkinson compression bar and automatic assembly technology, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of unstable assembly, large temperature drop of test pieces, and low success rate, so as to reduce the cold contact time and lighten the Uneven temperature, the effect of improving the success rate of assembly

Inactive Publication Date: 2009-10-21
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 Among them, the two-way double-gas-path automatic assembly device used for high-temperature Hopkinson pressure bar experiments includes an incident rod 1, a transmission rod 2, push supports (3, 23) respectively arranged on the incident rod 1 and transmission rod 2, The heating furnace 6 and the gas path; the test piece is arranged in the center of the heating furnace 6, and the pushing support (3, 23) is composed of a cylinder and a piston respectively. The gas circuit is set as a double gas circuit, and the pushing gas circuit 11 of the propulsion support and the percussion gas circuit 15 of the air cannon are set as independent air source gas circuits; The percussion air circuit 15 of the air cannon, the small air storage tank 9, the main valve 10, and the push air circuit 11; Air source 12 is connected with main valve 10 through the small-sized gas storage tank 9 that is set, and main valve 10 is connected with pushing support (3...

Embodiment 2

[0029] exist image 3 , Figure 4 , Figure 6 Among them, the two-way double-gas path automatic assembly device used for high-temperature Hopkinson compression bar experiments includes an incident rod 1, a transmission rod 2, push supports (33, 43) respectively arranged on the incident rod 1 and transmission rod 2, Heating furnace (6) and gas path; the test piece is arranged in the center of heating furnace 6, and the pushing support 33 is made up of cylinder 35 and piston 31, and the pushing support 43 is identical in structure with pushing support 33. The air path is set as a double air path, and the push air path of the propulsion support and the air blasting air path are set as independent air source air paths; Source 27, the percussion air path 15 of the air cannon, the small air storage tank 9, the main valve 10, and the push air path 11; Gas source 27 is connected with main valve 10 through the small-sized gas storage tank 9 that is set, and main valve 10 is connecte...

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Abstract

The invention provides a two-way double-gas path automatic assembly device used for high-temperature Hopkinson compression bar experiments, which belongs to the field of research on high-temperature dynamic mechanical properties of materials. The device of the present invention is provided with a pneumatic propulsion support on the incident rod and the transmission rod respectively, and pushes the two rods to move toward the test piece during assembly to form a two-way assembly and keep the test piece within the effective heating range. The pushing air path of the push support and the air blasting air path are set separately, and the main valve of the air path is set to uniformly control the switch of the pushing air path and the air blasting air path, so that the pushing support and the air bombardment firing can be linked and interacted with each other. does not affect. A small air storage tank is set as the source of the driving gas, and the driving speed of the driving support is controlled by controlling its air pressure. The device can ensure the stability of the assembly of the device, improve the success rate of assembly, ensure the synchronization of the assembly of the device and the arrival of the stress wave on the test piece, and avoid the rapid cooling of the test piece due to leaving the heat source.

Description

technical field [0001] The invention belongs to the research field of high-temperature dynamic mechanical properties of materials, and in particular relates to a bi-directional double-gas path automatic assembly device for high-temperature Hopkinson pressure bar experiments. The device can ensure the stability of device assembly and the accuracy of device assembly and stress waves reaching test pieces Synchronization, and avoid rapid cooling of the specimen due to leaving the heat source. Background technique [0002] One of the methods of using the Hopkinson pressure rod to study the high-temperature dynamic mechanical properties of materials is to keep the waveguide and the specimen in a separate state before the experiment, heat only the specimen, and then complete the specimen and the waveguide before the impact. assembly. This kind of method reduces the temperature gradient in the rod because the rod is separated from the test piece during heating, but it is easy to fo...

Claims

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Application Information

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Patent Type & Authority Patents(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