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Constant load stress corrosion test device with load sensor

A load sensor, stress corrosion technology, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problem of large loading stress error, and achieve the effect of improving test accuracy

Inactive Publication Date: 2017-02-22
XIAN MAURER PETROLEUM ENG LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This loading method has a large error in loading stress

Method used

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  • Constant load stress corrosion test device with load sensor
  • Constant load stress corrosion test device with load sensor
  • Constant load stress corrosion test device with load sensor

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Experimental program
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Embodiment Construction

[0017] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] see figure 1 , a constant load stress corrosion test device with a load sensor, comprising an elastic stress ring 1, the elastic stress ring 1 is provided with a container 2 for containing a corrosive medium; the upper part of the container 2 for containing a corrosive medium is connected to The load sensor 4 is connected; the upper part of the load sensor 4 is provided with a sensor upper joint 7 .

[0019] The outside of the load sensor 4 is provided with a support frame 3 .

[0020] The sensor upper joint 7 is fixed on the support frame 3 through the backup nut 6 ; a washer 5 is arranged between the backup nut 6 and the support frame 3 .

[0021] The thread secondary thread between the backup nut 6 and the sensor upper joint 7 is M30×1.

[0022] On the basis of the original device, a frame is adde...

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Abstract

The invention relates to a constant load stress corrosion test device with a load sensor. The constant load stress corrosion test device with the load sensor comprises an elastic stress ring and a container containing a corrosive medium, the upper portion of the elastic stress ring and the upper portion of the container containing the corrosive medium are connected with the load sensor through a sensor lower connector, and a sensor upper connector is arranged on the upper portion of the load sensor; an original stress corrosion detecting device calculates load exerted on a sample according to the displacement change on the load-displacement curve provided by testing; according to the load mode, as the number of times of tests on the stress ring is increased, load errors are larger and larger. The load sensor is additionally arranged on the original stress ring, the real-time load exerted on the sample is directly tested during loading, and test precision is greatly improved. The device has the advantages of being simple in structure, high in loading stress precision and high in controllability, and data can be collected and monitored.

Description

technical field [0001] The invention belongs to the field of constant load stress corrosion test of metal materials, improves test precision by adding load sensors, and can also collect load data at the same time. Background technique [0002] In the daily production environment, corrosion phenomena can be seen everywhere, and material failures caused by corrosion abound. Stress corrosion refers to the cracking phenomenon of metal or alloy caused by the synergistic effect of corrosive medium and tensile stress. Almost all projects, buildings, and equipment are threatened by it. Therefore, it is of great significance to conduct stress corrosion test research to ensure the safe use of materials. [0003] The currently used stress corrosion test device applies a constant load through an elastic stress ring, and calculates the load applied to the sample according to the displacement change during the test by measuring the load-displacement curve of the stress ring in advance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 史庆起赵国仙王雅倩
Owner XIAN MAURER PETROLEUM ENG LAB
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