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Test device and method for high-temperature shot blasting

A high-temperature shot peening and test device technology, which is applied in the preparation of test samples, etc., can solve the problems of no device for measuring temperature, inconvenient loading and unloading, and inability to rotate the device, so as to improve uniformity and deformation. ability, the effect of improving accuracy

Active Publication Date: 2013-03-20
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

However, this device cannot make the sample obtain a uniform shot-peening rotating device, it is inconvenient to clamp and unload the sample, and there is no device for measuring the temperature of the sample during the shot-peening process, and the device has a complex structure and a large volume

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  • Test device and method for high-temperature shot blasting
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  • Test device and method for high-temperature shot blasting

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Embodiment Construction

[0022] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0023] Such as figure 1 with 2 Shown embodiment, in this embodiment, the test device of described high-temperature shot peening comprises air compressor 19, high-pressure air heating gun 11, spray gun 21, storage tank 29, sample rotating mechanism 23, sample clamping Tool 24, sample temperature measurement system 25, air compressor 19 is connected with an air pressure valve, and then connected to circulating water cooler 28 through conveying air pipe 20, circulating water cooler 28 communicates with the upper end of the air inlet of high-pressure air heating gun 11, ...

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Abstract

The invention provides a test device for high-temperature shot blasting. The test device comprises an air compression system, a high-pressure air heating gun, a spray gun, a material storage tank, a sample rotating mechanism, a sample clamping tool and a sample temperature measuring system, wherein the air compression system, the high-pressure air heating gun and the spray gun are connected in sequence; the spray gun is arranged below the high-pressure air heating gun; the side surface of the spray gun is connected with the material storage tank; the lower side of the spray nozzle of the spray gun is aligned with a sample clamped by the sample clamping tool; the sample clamping tool is fixed on the sample rotating mechanism; the sample temperature measuring system is connected with the sample clamping tool; and the sample temperature measuring system is used for testing the temperature of the sample at any time. The invention further provides a corresponding method. According to the test device and method provided by the invention, the highest shot blasting temperature reaches 400 DEG C to facilitate improvement of plasticity of magnesium alloy and improvement of deformability. Moreover, the temperature of the sample is measured under the shot blasting condition, and precision of the experiment is improved; and besides, shot blasting is carried under a very small negative pressure, and the lowest shot blasting strength reaches 0.05 mmN.

Description

technical field [0001] The invention relates to a device in the technical field of metal material processing, in particular to a high-temperature shot peening machine for performing surface deformation strengthening treatment on a magnesium alloy sample, and in particular to a test device and method for high-temperature shot peening. Background technique [0002] Fatigue fracture has always been the most important form of damage to mechanical parts and engineering components. In aerospace, shipbuilding, chemical machinery, transportation, engineering machinery and other fields, about 50-90% of structural strength damage is caused by fatigue damage. Magnesium alloy is a metal material with great development potential, and the improvement of fatigue performance is conducive to expanding its application field. As we all know, shot peening is a commonly used method to improve the fatigue strength and fatigue life of metal materials. In recent years, some scientific and technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 黄宇董杰刘文才丁文江
Owner SHANGHAI JIAO TONG UNIV
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