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Semi-open type in-situ salt spray corrosion device suitable for optical measurement mechanics

A semi-open, salt spray corrosion technology, used in measurement devices, weather resistance/light resistance/corrosion resistance, scientific instruments, etc.

Active Publication Date: 2020-11-03
CIVIL AVIATION UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The devices proposed in the above-mentioned patents do not fully control the flow rate and temperature of the salt mist, and all of them adopt a relatively closed corrosion chamber. Mechanics method for in-situ observation of the sample

Method used

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  • Semi-open type in-situ salt spray corrosion device suitable for optical measurement mechanics
  • Semi-open type in-situ salt spray corrosion device suitable for optical measurement mechanics
  • Semi-open type in-situ salt spray corrosion device suitable for optical measurement mechanics

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specific Embodiment approach 1

[0024] Combine below Figure 1-3 Describe this embodiment, a semi-open in-situ salt spray corrosion device suitable for photomechanics, including a temperature adjustment module, a salt spray generation module and a semi-open corrosion chamber, the salt spray generation module generates salt spray and controls The flow rate and concentration of the salt mist generation, the temperature adjustment module adjusts the temperature of the salt mist generated by the salt mist generation module, and the generated salt mist passes through the semi-open corrosion chamber to conduct the salt spray corrosion experiment on one side of the sample 13.

specific Embodiment approach 2

[0026] Combine below Figure 1-3 Describe this embodiment, this embodiment will further explain Embodiment 1, the temperature adjustment module includes a water bath box 2, an air heating tube 3, a thermocouple 15, a dry burning tube array 16 and a temperature control box 17, and the air heating tube 3 is set In the water bath box 2, the temperature control box 17 collects the temperature signal of the thermocouple 15 to control the temperature of the water bath box 2 and the dry burning tube array 16 simultaneously; during the test, add an appropriate amount of water in the water bath box 2 until the air heating tube 3 is submerged. And place the thermocouple 15 near the sample 13, set the target salt spray temperature on the temperature control box 17, and make the water bath box 2 and the dry burning tube array 16 enter the heating mode, the water bath box 2 is at the source of the salt spray production, Firstly, the temperature of the salt mist is increased, and the dry he...

specific Embodiment approach 3

[0028] Combine below Figure 1-3 Describe this embodiment. This embodiment will further explain Embodiment 2. The salt spray generation module includes an air compressor 1, a liquid storage tank 4, a pressure limiting valve 5, a salt spray nozzle 6, a salt liquid valve 7, and a drain pipe 8 and conduit 9, the air compressor 1 is connected to the water bath 2, the air compressor 1 is connected to the air heating pipe 3, the salt spray nozzle 6 includes an air spray end and a liquid spray end, and the connection between the air spray end and the air heating pipe 3 is limited Pressure valve 5, a salt liquid valve 7 is connected between the liquid spray end and the liquid storage tank 4, a drain pipe 8 is connected to the liquid storage tank 4, the salt spray nozzle 6 is fixedly connected in the conduit 9, and the dry burning pipe array 16 is connected to the In the conduit 9; add an appropriate amount of saline solution in the liquid storage tank 4, turn on the air compressor 1, ...

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Abstract

The invention relates to the technical field of material testing devices, in particular to a semi-open type in-situ salt spray corrosion device suitable for optical measurement mechanics. The device comprises a temperature adjusting module, a salt spray generating module and a semi-open type corrosion cavity, and can generate salt spray through the salt spray generating module and control the flowrate and concentration of the salt spray. The temperature adjusting module adjusts the temperature of salt mist generated by the salt mist generating module, and the generated salt mist passes through the semi-open corrosion cavity to conduct a salt mist corrosion experiment on one side of a sample, so a salt mist environment with the adjustable temperature and flow speed is provided for the sample, and the semi-open corrosion cavity is adopted, so salt mist or liquid drops condensed by the salt mist can be prevented from interfering with optical measurement mechanical methods such as digitalimage related technologies while the salt mist is prevented, the surface of the sample is allowed to be observed in real time in the mechanical test process, and the information data such as the surface appearance, displacement and deformation of the sample is collected.

Description

technical field [0001] The invention relates to the technical field of material testing devices, in particular to a semi-open in-situ salt spray corrosion device suitable for photomechanics. Background technique [0002] In practical engineering applications, the coupling effect of mechanical loading and environmental corrosion can easily cause material failure, especially in coastal environments, where salt spray erosion can cause material failure and fracture under mechanical loading at a lower stress level. In order to simulate this actual damage condition and study the influence mechanism of salt spray on the mechanical loading failure process, it is necessary to use an in-situ corrosion device to provide a corrosion environment for the sample while the sample is under load, and adopt related technical methods , measure and analyze the surface displacement deformation and crack growth of the sample. The focus of the current in-situ corrosion device design is to solve th...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 陈亚军宋先捷王付胜杨金川彭剑书
Owner CIVIL AVIATION UNIV OF CHINA
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