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High-throughput automatic corrosion resistance evaluation device capable of achieving in-situ measurement

An in-situ measurement and evaluation device technology, which is applied in the direction of measurement devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve problems such as in-situ synchronous measurement, accurate and efficient research on corrosion behavior obstacles, etc., and achieve convenient replacement and procurement , easy to purchase, and reduce labor time consumption

Inactive Publication Date: 2018-12-07
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Problems solved by technology

[0012] 4. Corrosion resistance evaluations are carried out by immersion, hydrogen collection and electrochemical measurement respectively, and in-situ simultaneous measurement has not yet been realized, which poses a great obstacle to accurate and efficient research on corrosion behavior

Method used

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  • High-throughput automatic corrosion resistance evaluation device capable of achieving in-situ measurement
  • High-throughput automatic corrosion resistance evaluation device capable of achieving in-situ measurement
  • High-throughput automatic corrosion resistance evaluation device capable of achieving in-situ measurement

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] The high-throughput automated hydrogen collection device is divided into two structures

[0037] The first structure is a liquid discharge weighing structure, such as Figure 4 ; The sample is sealed (21) with epoxy resin, and a working surface is reserved for the sealed sample, and the back is punched and tapped, such as Figure 6 Rotate and compress with the sealing ring (20) to ensure that there is no water between the wire (17) and the sample, and the end of the conduit (18) uses a PVC nut (19) plus a sealing ring (20) to fix the wire and double seal role.

[0038] In the closed structure, th...

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Abstract

The invention belongs to the field of material corrosion protection and discloses a high-throughput automatic corrosion resistance evaluation device capable of achieving in-situ measurement. The device includes: a high-throughput automatic hydrogen collection apparatus, a high-throughput electrochemical noise signal monitoring apparatus, and a high-throughput real time monitoring apparatus. The high-throughput automatic hydrogen collection apparatus includes a liquid displacement weighing structure and a buoyancy sensing structure; the high-throughput electrochemical noise signal monitoring apparatus includes a program controlled signal switching apparatus and an electrochemical work station that are connected through a wire, so that one electrochemical work station can monitor four groups, or an integral number times of four groups, of noise data simultaneously; the high-throughput real time monitoring apparatus includes a high-definition waterproof camera and a data process and control system. The units in the device are independent, so that the device is convenient to detach and clean. The device is humanized and is convenient to use and has accurate measurement result and goodrepeatability. Due to automatic counting, manpower and time consumption are greatly reduced, so that work efficiency is increased. The device has extensive application prospect.

Description

technical field [0001] The invention belongs to the field of material corrosion protection, and in particular relates to a high-throughput automatic corrosion resistance evaluation device for metals (such as magnesium alloys in salt water and other corrosive media) that have the property of generating gases due to corrosion. Background technique [0002] Lightweight alloys such as magnesium alloys are widely used in aerospace, automobile manufacturing, electronic products and other fields. Due to the strong activity of these light alloys, corrosion is easy to occur in corrosive environments and lead to material failure behavior. And due to different casting processes, such as cooling speed, cooling time, and impurity metal content, its corrosion resistance has great differences. [0003] In order to improve the corrosion resistance of lightweight and active alloys such as magnesium alloys, engineers have invented many surface protection methods, such as corrosion inhibitors,...

Claims

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Application Information

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IPC IPC(8): G01N17/02
CPCG01N17/02
Inventor 张涛廖赏举张春艳于宝兴王福会
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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