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 affect the measurement accuracy of sensors, it is difficult to ensure the accuracy of measurement data, and the time of window opening affects the internal experimental temperature.

Active Publication Date: 2021-12-03
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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  • High-temperature-resistant device for powder metallurgy damping experiment
  • High-temperature-resistant device for powder metallurgy damping experiment
  • High-temperature-resistant device for powder metallurgy damping experiment

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Effect test

Embodiment 1

[0057] Such as figure 1As shown, the embodiment of the present invention provides a high temperature resistant device for powder metallurgy damping experiment, including a high temperature vacuum furnace 1 fixed on the base 2; a test piece fixing device fixed in the middle of the high temperature vacuum furnace 1 for fixing the test piece Two cooling devices, one cooling device is fixed on the position opposite to the test piece above the high-temperature vacuum furnace 1, and the other cooling device is fixed on the position opposite to the test piece below 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 The test piece vibrates; the data detection device is fixed ...

Embodiment 2

[0066] This embodiment is based on Embodiment 1. The test piece fixing device includes a cuboid 19, which is fixed on the lateral movement mechanism; the first electric push rod 20, and the outer casing is fixed on the cuboid 19; the second electric push rod 21, the outer casing 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 pressure plates 22 are respectively connected with the first electric push rod 20 and the second The telescopic end of the electric push rod 21 is 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 wall of the high-temperature vacuum furnace 1 through bearings; the second motor 24 is fixed in the h...

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Abstract

The invention provides a high-temperature-resistant device for a powder metallurgy damping experiment. The high-temperature-resistant device comprises a high-temperature vacuum furnace fixed to a base, and the middle of the high-temperature vacuum furnace is used for fixing a test piece; a cooling device is fixed above the high-temperature vacuum furnace and opposite to the test piece, and another cooling device is fixed below the high-temperature vacuum furnace and opposite to the test piece; and a switch assembly is fixed at the opening of each of the two cooling devices. A vibration generating device is fixed in one cooling device, and a vibration piece of the vibration generating device is in contact with the test piece to drive the test piece to vibrate; a data detection device is fixed in the other cooling device, and a detection piece of the data detection device detects the vibration response of the test piece; and the whole damping experiment process is completed in the high-temperature vacuum furnace, the experiment precision is prevented from being influenced by repeated windowing, meanwhile, the temperature of the data detection device is reduced by using the cooling device in a high-temperature environment, and the detection precision is improved.

Description

technical field [0001] The invention belongs to the technical field of damping experiments, and in particular relates 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 and other elements. It is the lightest metal structure material in practical application at present. It has the advantages of low density, high strength, good damping, machinability and casting performance. There are many types of magnesium alloy materials, among which ZK60A magnesium alloy is characterized by high strength and good corrosion resistance, and is mainly used for housings of electrical products, small-sized thin or special-shaped brackets, etc. Powder metallurgy is an industrial technology for producin...

Claims

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Application Information

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Patent Type & Authority Applications(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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