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Rotary dynamic metal corrosion testing device and using method thereof

A rotary dynamic, metal corrosion technology, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of complex devices, liquid metals are easily polluted, and the number of samples loaded is limited, so as to avoid The device is complex, realizes the change of relative motion rate, and ensures the effect of safety

Active Publication Date: 2013-12-18
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rotary dynamic metal corrosion device and its use method, which can solve the problems in the prior art that the device is complicated, the liquid metal is easily polluted, and the number of samples loaded is limited.

Method used

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  • Rotary dynamic metal corrosion testing device and using method thereof
  • Rotary dynamic metal corrosion testing device and using method thereof
  • Rotary dynamic metal corrosion testing device and using method thereof

Examples

Experimental program
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Embodiment 1

[0059] Use the device mentioned in the invention to test the corrosion behavior of martensitic heat-resistant steel P91 in a dynamic lead-bismuth (Pb-Bi) eutectic alloy at 550 °C, and proceed as follows:

[0060] 1) Put the glass lining into the experimental chamber, and use corundum powder to fill the gap between the glass lining and the experimental chamber, and put about 20kg of Pb-Bi eutectic alloy into the glass lining;

[0061] 2) Put the extruded sealing metal frame and high-temperature rubber ring in the center hole of the upper cover of the experimental chamber, and pass the rotating rod through the central hole of the upper cover of the experimental chamber;

[0062] 3) Connect the sample holder with the rotating rod that passes through the upper cover of the experimental chamber, and at the same time clamp the φ5×10mm round rod-shaped P91 sample on the sample holder, and use the lifting motor to lift the sample holder and the sample to the height above the glass lin...

Embodiment 2

[0070] Use the device mentioned in the invention to test the corrosion behavior of martensitic heat-resistant steel P91 in a dynamic lead (Pb) alloy at 600 °C, and proceed as follows:

[0071] 1) Put the glass lining into the experimental cavity, and use corundum powder to fill the gap between the glass lining and the experimental cavity, and put about 25kg of Pb alloy into the glass lining;

[0072]2) Put the extruded sealing metal frame and high-temperature rubber ring in the center hole of the upper cover of the experimental chamber, and pass the rotating rod through the central hole of the upper cover of the experimental chamber;

[0073] 3) Connect the sample holder to the rotating rod that passes through the upper cover of the test chamber, and at the same time, clamp the 40mm×20mm×5mm sheet-shaped P91 sample on the sample holder, and use the lifting motor to place the sample holder and the test chamber. The sample is lifted to a height higher than the glass lining.

[...

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Abstract

The invention relates to the field of high-temperature corrosion of liquid metal and particularly relates to a rotary dynamic metal corrosion testing device and a using method thereof. The device is provided with a gas path and sealing system, a temperature control and reactor system and a lifting and rotating system, wherein the gas path and sealing system mainly comprises a vacuum pump, a resistance type vacuum gauge, a gas mixing device and a gas flow controller; the temperature control and reactor system mainly comprises heating elements, a temperature measuring element, an artificial intelligent temperature controller, a heat resistant steel experiment cavity, an experiment cavity upper sealing cover and glass lining; the lifting and rotating system mainly comprises a stepping motor, a sliding slipway, a ball screw, limiting stoppers, a rotary rod and a sample holder. According to the device, the experiment environment atmosphere is controllable through the extrusion sealing mode of metal and a high-temperature rubber ring, the experiment temperature is accurate and controllable through intelligent temperature control, the relative movement of a sample and a corrosive medium (liquid metal) is realized through the mode that rotary motor drives an agitator arm to rotate, and high-temperature dynamic corrosion experiment is realized under the simple dynamic equipment composing condition.

Description

technical field [0001] The invention relates to the field of high-temperature corrosion of liquid metal, in particular to a rotary dynamic metal corrosion device and a use method. Under the high-temperature controllable atmosphere, the structural material and the liquid metal are relatively moved by means of rotation, and the corrosion test of the material in the dynamic liquid metal is realized, which provides the possibility for the study of the dynamic compatibility of the material and the liquid metal, and simplifies the traditional method. Pipeline dynamic corrosion device. Background technique [0002] Liquid metal generally has higher density and heat capacity than water, so when using liquid metal as a heat transfer medium, the heat transfer efficiency is higher, and because of its high boiling point, it can be used at higher temperatures without worrying about excessive vapor pressure safety issues caused. Therefore, the use of liquid metal as a heat transfer medi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
Inventor 王培叶中飞董红李殿中李依依
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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