High-temperature high-pressure in-situ high-speed scratching device

A high-temperature, high-pressure, high-speed technology, which is applied in the field of surface scratching of corrosion-resistant materials, can solve problems such as in-situ high-speed scratching and scratching sample fixation, pressure balance and sealing of insulating high-speed moving shafts, etc., so as to facilitate quantitative comparison, Easy disassembly and maintenance, fast scratch effect

Active Publication Date: 2014-04-09
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-temperature and high-pressure in-situ high-speed scratching device to solve the problem of in-situ high-speed scratching, fixation of scratched samples, insulation, lead-out of signal lines, and high-speed movement in the high-temperature and high-pressure environment in the prior art. Shaft pressure balance and sealing issues

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  • High-temperature high-pressure in-situ high-speed scratching device

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Embodiment Construction

[0037] Such as Figure 1-Figure 4 As shown, the high-temperature, high-pressure in-situ high-speed scratching device of the present invention is provided with: a reference electrode 1, a manual lifting plate 2, an electrode cooling water inlet 3, a column II 4, a thermocouple 5, a slider II 6, a guide plate 7, Working electrode (sample) 8, ring heater 9, high-speed motion shaft 10, stroke head 11, intake valve 12, high-speed motion shaft cooling water inlet 13, reversing valve switch 14, reversing valve 15, pneumatic piston rod 16. Piston 17, air inlet 18, exhaust port 19, air release valve 20, pedal 21, hydraulic cylinder 22, Hall sensor 23, high-speed motion shaft cooling water outlet 24, liquid inlet valve 25, auxiliary electrode 26, distribution Weight 27, slider Ⅰ 28, autoclave exhaust valve 29, upper autoclave cover 30, column Ⅰ 31, electrode cooling water outlet 32, pressure transmitter 33, pressure gauge 34, safety valve 35, magnetic steel 36, lower autoclave Cover 37...

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Abstract

The invention relates to a scratching device, in particular to a high-temperature high-pressure in-situ high-speed scratching device, which can be used for solving a series of problems that in-situ high speed scratching, fixation and insulation of a scratching sample, leading out of a signal line, pressure balance of a high speed motion shaft, high precision timing of a sealing and scratching process and the like are difficult to realize under a high temperature and high pressure environment in the prior art. The device is provided with a high pressure kettle, a circular heater, a manual / hydraulic bi-column fixing bracket, a control box, the high speed motion shaft, a scratching head, a sample fixing device, an air cylinder, a reversing valve, magnetic steel, a Hall sensor and a precise timer and the like. With the adoption of the device, the surface of a metal sample in the high temperature and high pressure environment is subjected to an in-situ high speed scratching research, and time consumed in the high speed scratching process is precisely recorded. Furthermore, a signal of a process of a surface film of the sample which is damaged and further passivated in the scratching process can be detected through a high-temperature high-pressure reference electrode of a kettle cover installed on the high-pressure kettle, high temperature and high pressure operation, and coordination of an auxiliary electrode and an electrochemical workstation.

Description

technical field [0001] The invention relates to a technology for scratching the surface of corrosion-resistant materials, in particular to a high-temperature, high-pressure, in-situ, high-speed scratching device. Background technique [0002] Corrosion-resistant alloys that rely on the formation of a dense passivation film on the surface and have corrosion resistance. When the passivation film on the local surface is exposed to a fresh surface due to mechanical damage, the corrosion of the fresh surface will be aggravated, thereby forming a new passivation film at this position , and the occurrence of repassivation depends on the combined effect of the material itself and environmental factors. Therefore, the in-situ characterization of the repassivation ability of metallic materials in a specific environment plays an important role in evaluating the corrosion resistance of materials under working conditions. [0003] At present, the characterization of the repassivation ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N27/26
Inventor 郦晓慧王俭秋韩恩厚柯伟
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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