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Portable variable load digital stress corrosion measurement device

A measuring device, stress corrosion technology, applied in the direction of measuring device, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of trouble and insufficient precision, and achieve the effect of easy portability and operation, low cost and simple structure

Inactive Publication Date: 2014-03-26
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

[0004] The purpose of the present invention is to provide a portable variable load digital stress corrosion measurement device to solve the problems in the prior art that the selection of springs as the load application source is not accurate enough, and it is troublesome to replace springs with different Hooke coefficients.

Method used

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  • Portable variable load digital stress corrosion measurement device

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Embodiment Construction

[0025] like figure 1 As shown, the portable variable load digital stress corrosion measuring device of the present invention mainly includes: a tensile test piece 1, a reference electrode 2, an auxiliary electrode 3, an electrochemical workstation 4, a computer 5, a load-measuring force sensor 6, and a force-measuring signal line 7 , Load indicator 8, Load indicator power cord (220 volts AC) 9, Loading manual crank 10, Two-stage worm gear reducer 11, Transmission shaft 12, Dynamic stretching head 13, Static stretching head 14, Liquid tank 15 etc., the specific structure is as follows:

[0026] The tensile test piece 1 is arranged between the dynamic stretching head 13 and the static stretching head 14, and the static stretching head 14 located on the inner wall of the liquid container 15 is in a static state, and extends to the dynamic stretching head 13 in the liquid container 15 It is a movable state; one end of the tensile test piece 1 is stretched into the static stretch...

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Abstract

The invention relates to the field of stress corrosion measurement and in particular relates to a portable variable load digital stress corrosion measurement device. The problems that the precision is insufficient by taking a spring as a load application source, the spring is difficult to replace and the like in the prior art are solved. According to the measurement device, a tensile test piece is arranged between a movable tensile head and a stationary tensile head; one end of the tensile test piece stretches into the stationary tensile head, and the other end of the tensile test piece and the movable tensile head stretch into one end of a liquid pool to be connected with each other; the other end of the movable tensile head is connected with a worm gear reducer through a transmission shaft; a loading force measurement sensor is arranged on the transmission shaft. The tensile test piece, a reference electrode and an auxiliary electrode form a three-electrode system, and the three-electrode system is connected with an electrochemical workstation and a computer to perform electrochemical testing. The device can be used for conventional constant stress and constant strain experiments and also can be combined with the electrochemical workstation for performing electrochemical polarization, electrochemical impedance spectroscopy and electrochemical noise measurements under the actions of constant stress and variable load.

Description

technical field [0001] The invention relates to the field of stress corrosion measurement, in particular to a portable variable load digital stress corrosion measurement device. Background technique [0002] When studying material stress corrosion, it is often necessary to apply a certain load to the material to observe the changes in the internal structure, structure and mechanical properties of the material under stress. In most measurement setups, springs are often chosen as the source of load. like figure 2 As shown, the stress corrosion measuring instrument in the prior art mainly includes: tensile test piece (WE) 16, auxiliary electrode (CE) 17, reference electrode (RE) 18, electrochemical workstation 19, computer 20, etc., auxiliary electrode ( CE) 17, tensile test piece (WE) 16, and reference electrode (RE) 18 are respectively connected to the input end of the electrochemical workstation 19 through wires, and the electrochemical workstation 19 is connected to the c...

Claims

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Application Information

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IPC IPC(8): G01N17/00
Inventor 孙成吴堂清闫茂成许进于长坤龙康
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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