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A high temperature resistant device for powder metallurgy damping experiment

A technology of powder metallurgy and high temperature resistance, which is applied in the field of high temperature resistance devices for powder metallurgy damping experiments. It can solve the problems that the opening time of the window affects the internal experimental temperature, affects the measurement accuracy of the sensor, and it is difficult to ensure the accuracy of measurement data.

Active Publication Date: 2022-06-24
QINGHAI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during excitation, the transparent window on the high-temperature vacuum furnace is generally used to increase the excitation. After the excitation, the damping data of the metal material also needs to be detected through the transparent window on the high-temperature vacuum furnace. The opening time of the window on the vacuum furnace is relatively long, which will affect the temperature of the internal experiment
Even if the vibration generator and data detection device are placed in a high-temperature environment in order to avoid the number of window openings, since the data detection device generally uses sensors to detect data, the high-temperature environment will affect the measurement accuracy of the sensor, and it is difficult to ensure the accuracy of its measurement data sex

Method used

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  • A high temperature resistant device for powder metallurgy damping experiment
  • A high temperature resistant device for powder metallurgy damping experiment
  • A high temperature resistant device for powder metallurgy damping experiment

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Embodiment 1

[0057] like figure 1As shown, the embodiment of the present invention provides a high temperature resistance device for powder metallurgy damping experiments, including a high temperature vacuum furnace 1, which is fixed on a base 2; a test piece fixing device, which is fixed in the middle of the high temperature vacuum furnace 1 for fixing the test piece Two cooling devices, one cooling device is fixed at the position opposite to the test piece above the high-temperature vacuum furnace 1, and the other cooling device is fixed at the position opposite to the test piece under the high-temperature vacuum furnace 1; Two switch assemblies, They are respectively fixed at the openings at the opposite ends of the two cooling devices and the test piece; the vibration generating device is fixed inside one of the cooling devices; the vibration part 3 of the vibration generating device passes through the switch assembly and is driven by contact with the test piece. The test piece vibrate...

Embodiment 2

[0066] This embodiment is based on Embodiment 1. The specimen fixing device includes a cuboid 19, which is fixed on the lateral movement mechanism; a first electric push rod 20, whose outer casing is fixed on the cuboid 19; a second electric push rod 21, whose outer casing is fixed on the cuboid 19 The body is fixed on the cuboid 19, and the telescopic end of the second electric push rod 21 is relatively telescopic with the first electric push rod 20; two pressing plates 22 are respectively connected with the first electric push rod 20 and the second electric push rod 20. The telescopic ends of the electric push rod 21 are fixedly connected; wherein, the first electric push rod 20 and the second electric push rod 21 press the test piece from the upper and lower sides.

[0067] Further, the lateral movement mechanism includes a screw 23, the left and right ends of which are connected to the bearing seat fixed on the inner side wall of the high temperature vacuum furnace 1 throug...

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Abstract

The invention provides a high temperature resistant device for powder metallurgy damping experiment, which includes a high temperature vacuum furnace fixed on the base, the middle part of the high temperature vacuum furnace is used to fix the test piece; a cooling device is fixed above the high temperature vacuum furnace opposite to the test piece, Another cooling device is fixed at the position opposite to the test piece under the vacuum furnace; a switch assembly is fixed at the opening of the two cooling devices. One of the cooling devices is fixed with a vibration generating device, and the vibrating part of the vibration generating device contacts the test piece to drive the test piece to vibrate; the other cooling device is fixed with a data detection device inside, and the detection part of the data detection device detects the vibration response of the test piece; The invention completes the entire damping experiment process in a high-temperature vacuum furnace, avoids repeatedly opening windows to affect the experiment accuracy, and also uses a cooling device to reduce the temperature of the data detection device in a high-temperature environment to improve its detection accuracy.

Description

technical field [0001] The invention belongs to the technical field of damping experiments, in particular to a high temperature resistant device for powder metallurgy damping experiments. Background technique [0002] With the development of aerospace, transportation, and information industries, the research and development of new light alloy materials has attracted the attention of various countries. Magnesium alloy is an alloy composed of magnesium as the base and other elements. It is the lightest metal structural material in practical application. It has the advantages of low density, high strength, damping, machinability and good casting performance. There are many types of magnesium alloy materials. Among them, ZK60A magnesium alloy is characterized by high strength and good corrosion resistance. It is mainly used for shells of electrical products, small-sized thin or special-shaped brackets, etc. Powder metallurgy is an industrial technology for preparing metal powde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
CPCG01M7/022
Inventor 李灼华王金辉雷富军周宇亭
Owner QINGHAI UNIVERSITY
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