KR20190000422A - Measuring apparatus and measuring method for corrosion depth - Google Patents

Abstract

The corrosion depth measuring apparatus according to an embodiment of the present invention may include a calculating unit for measuring a thickness of a measured material and a supporting unit to which the measuring unit is inserted and into which the measured material is inserted.

Description

[0001] The present invention relates to a corrosion depth measuring apparatus and a corrosion depth measuring method,

The present invention relates to a corrosion depth measuring apparatus and a corrosion depth measuring method.

Steel materials are subjected to various types of corrosion experiments depending on their application and characteristics. As part of the evaluation method, corrosion depth measurement work is carried out before and after the experiment.

Before and after the experiment, the depth of corrosion (or thickness) is measured by dividing the surface of the material to be measured at regular intervals and measuring several parts.

Thereafter, the corrosion test for the purpose of the experiment is carried out using the material to be measured. After completion, the corrosion layer on the surface of the material to be measured which is created by the experiment is removed, and the thickness is measured in several parts of the material to be measured 101 do.

Here, the thickness of the material to be measured S is measured using a micrometer M as shown in FIG. 1, and the measurement interval is sequentially selected by the experimenter.

Therefore, the measurement of the thickness before and after the experiment using many measured materials (S) requires a long period of time due to repetitive processes, and there is a problem that the efficiency of the experiment is remarkably deteriorated due to the workload.

In addition, it is difficult to match the measurement position before the corrosion test and the measurement position after the corrosion experiment in the process of measuring the thickness of the measured material (D) before and after the experiment, and it is difficult to secure the efficiency of the experiment due to poor reproducibility of measurement have.

Since the thickness of the material to be measured (S) before and after the experiment must be measured sequentially by operating the micrometer (M) by holding the material to be measured with the hand of the experimenter, It also causes pollution problems.

Therefore, it is necessary to study corrosion depth measurement apparatus and corrosion depth measurement method to prevent the above-mentioned problems.

Korean Unexamined Patent Application Publication No. 10-2007-0035624 (published April 2, 2007)

It is an object of the present invention to provide a corrosion depth measuring apparatus and a corrosion depth measuring method for improving the reliability and efficiency of measurement for a material to be measured.

The corrosion depth measuring apparatus according to an embodiment of the present invention may include a calculating unit for measuring a thickness of a measured material and a supporting unit to which the measuring unit is inserted and into which the measured material is inserted.

Further, the support unit of the apparatus for measuring corrosion depth according to an embodiment of the present invention includes a base member and a lower portion coupled to an upper surface of the base member, a hollow portion formed in the interior of the base member through an entrance formed at an upper end thereof, And a support pipe inserted to support the measured material.

The support pipe of the apparatus for measuring corrosion depth according to an embodiment of the present invention is connected to the upper part of the discharge hole formed in the base member to communicate with the hollow part and the width of the lower hollow part is larger than the width of the upper hollow part And is formed to be small.

Further, the support pipe of the apparatus for measuring corrosion depth according to an embodiment of the present invention may be characterized in that the lower hollow portion is provided in an inclined or stepped shape.

The calculation unit of the apparatus for measuring corrosion depth according to an embodiment of the present invention may further include a socket tube which is connected to the through hole formed in the side portion of the support unit and which is inserted into the socket tube, And a shaft extending and retracting at both ends, wherein the shaft includes a piston member which is respectively coupled to a contact member inserted in a socket tube joined to both side portions of the support unit .

Further, the contact member of the corrosion depth measuring apparatus according to an embodiment of the present invention may have a maximum length of a portion to be inserted into the socket tube is longer than a maximum extension length of the piston member, And the like.

In addition, a plurality of the socket pipes of the corrosion depth measuring apparatus according to an embodiment of the present invention may be arranged at regular intervals in the height direction of the support unit.

The apparatus for measuring corrosion depth according to an embodiment of the present invention may include a control unit connected to the piston member to sense movement distances of the both end shafts of the piston member and to store the movement distance.

According to another aspect of the present invention, there is provided a corrosion depth measuring method comprising a first preparing step of inserting a material to be measured into a support unit provided in the corrosion depth measuring apparatus, A first measurement step of measuring a distance between both end shafts of a piston member provided in the calculation unit when the contact member makes contact with both side surfaces of the measured material, A second measuring step of re-contacting the contact member with both side surfaces of the measured material and re-measuring the distance between the both end shafts of the piston member; and a second measuring step And a corrosion depth calculating step of collecting the absolute value of the difference of the measured values as data.

The corrosion depth measuring apparatus and the corrosion depth measuring method of the present invention have an advantage that the position of the thickness measurement of the measured material can be maintained constant before and after the corrosion evaluation experiment.

Thus, the reliability of the thickness measurement data of the measured material can be improved.

In addition, the corrosion depth measuring apparatus and the corrosion depth measuring method of the present invention can simultaneously measure the thickness at a plurality of positions of the material to be measured, so that the measurement time can be shortened.

In addition, the corrosion depth measuring apparatus and the corrosion depth measuring method of the present invention have an advantage that scattering of the dropped corrosive substances can be prevented during the thickness measurement of the measured material.

1 is a photograph showing a micrometer measuring the thickness of a material to be measured.
2 is a perspective view showing a corrosion depth measuring apparatus of the present invention.
3 is a cross-sectional view of a corrosion depth measuring apparatus of the present invention.
4 is a side cross-sectional view showing the lower hollow portion of the support pipe in the corrosion depth measuring apparatus of the present invention.
5 is a perspective view including a side cross-sectional view of the piston member in the corrosion depth measuring apparatus of the present invention.
6 is a plan sectional view showing the periphery of the calculation unit in the corrosion depth measuring apparatus of the present invention.
7 is a flowchart illustrating a corrosion depth measurement method of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

The present invention relates to a corrosion depth measuring apparatus and a corrosion depth measuring method, which can maintain a position of a thickness measurement of a measured material (S) before and after a corrosion evaluation experiment, The reliability of the measurement data can be improved.

FIG. 2 is a perspective view showing a corrosion depth measuring apparatus of the present invention, and FIG. 3 is a sectional view showing a corrosion depth measuring apparatus of the present invention.

2 and 3, the apparatus for measuring corrosion depth according to an embodiment of the present invention includes a calculation unit 10 for measuring the thickness of a material S to be measured and the calculation unit 10, And a support unit 20 into which the measured material S is inserted.

Since the measurement material S is provided in the support unit 20 in such a manner that the measurement unit 10 can measure the thickness of the measurement material S at all times, . ≪ / RTI >

The calculation unit 10 serves to measure the thickness of the material S to be measured. To this end, the calculation unit 10 may be provided to be coupled to the support unit 20, (11), a contact member (12), a piston member (13), and the like. A detailed description thereof will be given later with reference to Fig. 5 and Fig.

The support unit 20 serves to support the measured material S, thereby preventing the change of the point at which the calculation unit 10 measures the thickness.

To this end, the support unit 20 may include a base member 21, a support pipe 22, and the like. That is, the support unit 20 of the apparatus for measuring depth of corrosion according to an embodiment of the present invention includes a base member 21, a lower end connected to the upper surface of the base member 21, And a support pipe 22 inserted into the hollow portion 22b formed in the inside of the measurement material S to support the measurement material S. [

The base member 21 is configured to be seated on the ground and the support tube 22 is vertically coupled to allow the measurement workpiece S to be inserted into the support tube 22 .

In addition, the base member 21 may be made of steel or the like and formed to have a constant weight, so that the support pipe 22 may be vertically coupled.

The supporting tube 22 is provided with a lower end coupled to the base member 21 and inserted into the base material 21. The upper end of the base tube 21 is inserted into the supporting tube 22, An entry port 22a may be formed.

The support pipe 22 may be provided with a hollow portion 22b on which the measured material S inserted through the entry port 22a is seated.

Meanwhile, the support pipe 22 may be provided to be able to observe the measured material S, which is formed of a transparent acrylic material or the like and is inserted and seated therein.

In addition, the lower portion of the hollow portion 22b of the support pipe 22 is formed to have a width smaller than that of the upper portion so that the measured material S is spaced apart from the hollow portion 22b inside the support pipe 22, And a detailed description thereof will be given later with reference to FIG.

The thickness of the material to be measured S can be measured by providing the calculation unit 10 coupled to the support pipe 22. In particular, a plurality of socket tubes 11 and the like of the calculation unit 10 are provided in the height direction of the measured material S so that the thickness of the measured material S can be measured at a plurality of points. A detailed description thereof will be given later with reference to Fig.

The corrosion depth measuring apparatus according to an embodiment of the present invention includes a control unit (not shown) connected to the piston member 13 for sensing a moving distance of the shaft portions 13a of the both ends of the piston member 13, 30).

As described above, the control unit 30 can store the data of the measured material S as data and display the thickness of the measured material S when the calculation unit 10 measures the thickness.

To this end, the control unit 30 can be connected to the calculation unit 10, and both the contact members 12 of the calculation unit 10 when the measured material S is not provided contact each other When the measured material S is provided and the distance between the both contact members 12 of the calculation unit 10 is calculated as the thickness of the measured material S, As shown in FIG.

FIG. 4 is a side cross-sectional view showing the lower hollow portion 22b of the support pipe 22 in the apparatus for measuring corrosion depth according to the present invention. Referring to FIG. 4, The lower hollow portion 22b is connected to the upper portion of the discharge hole formed in the base member 21 so as to communicate with the hollow portion 22b and the width of the lower hollow portion 22b is smaller than the width of the upper hollow portion 22b Is formed.

The lower part of the hollow part 22b of the support pipe 22 is formed to be smaller in width than the upper part so that the measured material S is spaced apart from the hollow part 22b inside the support pipe 22 by a predetermined distance And may be provided so as to be seated.

Thus, corrosive substances or other foreign substances dropped from the measured material S inserted into the support pipe 22 are not accumulated in the support pipe 22 but are removed through the discharge hole, S can be stably supported.

In other words, the corrosion depth measuring apparatus and the corrosion depth measuring method of the present invention can prevent the scattering of the dropped corrosive matter during the measurement of the thickness of the material to be measured (S).

In addition, the support pipe 22 of the apparatus for measuring corrosion depth according to an embodiment of the present invention may be characterized in that the lower hollow portion 22b is provided in an inclined or stepped shape.

The reason why the lower hollow portion 22b of the support pipe 22 is provided in a stepped shape is that the basic material S is restrained in the hollow portion 22b inside the support pipe 22 Lt; / RTI >

The lower hollow portion 22b of the support pipe 22 is provided in an inclined shape when the measured material S is inserted into the hollow portion 22b inside the support pipe 22, And can guide the measurement material S to be seated in the middle portion in the width direction of the hollow portion 22b.

5 is a perspective view showing a side view of the piston member 13 in the corrosion depth measuring apparatus of the present invention. Referring to FIG. 5, the calculation unit 10 of the apparatus for measuring corrosion depth according to an embodiment of the present invention, A socket tube 11 connected to the through hole formed in the side portion of the support unit 20 and inserted into the socket tube 11 and inserted into the support unit 20, And a shaft 13a extending and retracted at both ends of the shaft 13a. The shaft 13a has a contact 13 inserted into the socket tube 11 coupled to both side portions of the support unit 20, And a piston member 13 coupled to the member 12, respectively.

The calculation unit 10 includes a socket tube 11, a contact member 12, a piston member 13, a spring member 13, ). ≪ / RTI >

The socket tube 11 is configured to be coupled to a side portion of the support unit 20 and supports the movement of the contact member 12 to contact the measured member inserted into the support unit 20 .

The socket tube 11 is coupled to the through hole formed in the side surface of the support unit 20 so as to communicate with the hollow portion 22b of the support unit 20. And the contact member 12 may be inserted and provided.

The socket tube 11 may be provided in the form of a pipe having both ends opened so that the contact member 12 is inserted and communicated with the hollow portion 22b of the support unit 20. [ In addition, the socket tube 11 may be provided with an acrylic material or the like made of a transparent material so that the inside can be observed.

In addition, a plurality of the socket tubes 11 of the corrosion depth measuring apparatus according to an embodiment of the present invention may be arranged at regular intervals in the height direction of the support unit 20.

The plurality of socket tubes 11 are provided in the height direction of the support unit 20 so that the thickness of the measured material S inserted into the support unit 20 is measured at a plurality of points in the height direction I can do it. That is, each socket tube 11 is provided with a contact member 12 for measuring the thickness of the measured material S and a piston member 13 associated with the contact member 12.

Accordingly, the corrosion depth measuring apparatus and the corrosion depth measuring method of the present invention can simultaneously measure the thickness at a plurality of positions of the material S to be measured, thereby shortening the measuring time.

The contact member 12 directly contacts the measured material S to directly measure the thickness of the measured material S.

That is, the contact member 12 is inserted into the socket tube 11 to be moved. When the measured material S is not inserted into the support unit 20, And a moving distance of the contact member inserted into the socket tube (11) in a state where the measured material (S) is inserted into the supporting unit (20) And measures the thickness of the material S to be measured.

The pair of contact members 12 cooperate with each other at both side portions of the support tube 22 of the support unit 20 to contact both surfaces of the measured material S, The thickness may also be measured.

The contact member 12 may have a pointed end or a flat end so as to contact the measured material S.

In order to prevent the contact member 12 from being disengaged from the socket tube 11, the contact member 12 may be provided longer than a possible distance at which the shaft 13a of the piston member 13 can move, A detailed description thereof will be described later with reference to Fig.

The piston member 13 is connected to the contact member 12 to move the contact member 12 and also measures the moving distance of the contact member 12. [

To this end, the piston member 13 may be provided with a shaft 13a coupled to the contact member 12 at both ends thereof.

Here, the shaft 13a is moved by the hydraulic pressure to move the contact member 12, or may be freely moved within the body of the piston member 13 so that when the operator pushes the shaft member 13a, 13 may be provided to indicate the moving distance of the contact member 12 within the body of the contact member 12.

A transparent observation window may be attached to one side of the body of the piston member 13 so as to confirm the distance the inside end of the shaft 13a has moved from the outside, and may be connected to the control unit 30 The moving distance of the shaft 13a may be digitized and transmitted as data.

6 is a plan view of the periphery of the calculation unit 10 in the corrosion depth measuring apparatus of the present invention. Referring to FIG. 6, the contact member 12 of the apparatus for measuring corrosion depth according to an embodiment of the present invention, The maximum length L1 of the portion inserted into the socket tube 11 is longer than the maximum extension length L2 of the piston member 13 so as to prevent it from being disengaged from the socket tube 11. [ can do.

In other words, the contact member 12 is formed longer than the possible distance L2 at which the shaft 13a of the piston member 13 can move in order to prevent the contact member 12 from being disengaged from the socket tube 11 It can be.

To this end, the contact member 12 includes an insert pin inserted into the socket tube 11, a pin head coupled to an outer end of the insert pin, and a pin head coupled to the pin head and the shaft 13a. "Shaped anchor pin.

In this case, the coupling between the pin head and the insertion pin is of a "T" shape, thereby preventing the insertion pin from being completely inserted into the socket tube 11.

FIG. 7 is a flowchart illustrating a corrosion depth measuring method according to the present invention. Referring to FIG. 7, the corrosion depth measuring method according to another embodiment of the present invention includes: S when the contact member 12 provided in the calculation unit 10 of the corrosion depth measuring apparatus is in contact with both side surfaces of the material to be measured S, A second measurement step of measuring the distance between the both end shafts 13a of the piston member 13 provided in the support member 20 after the corrosive matter is removed from the measured material S, A second measuring step of re-contacting the contact member (12) to both sides of the measured material (S) and re-measuring the distance between the both end shafts (13a) of the piston member (13) The absolute value of the difference between the measured values in the first measuring step and the second measuring step is And a corrosion depth calculating step of collecting data.

As described above, the measured material S is subjected to the first preparation step and the first measurement step before the corrosion experiment to measure the initial thickness. After the corrosive matter is removed after the corrosion test, the second preparation step, , The thickness after the corrosion test is measured, and finally, the degree of formation of the corrosive substance in the calculation step is calculated as data. That is, the difference between the thickness of the measured material S measured in the first measuring step and the thickness of the measured material S measured in the second measuring step is calculated, and the thickness of the corrosive material formed and removed by the corrosion This can be confirmed indirectly.

As a result, an experimental result on the corrosivity of the measured material (S) is derived.

10: calculation unit 11: socket tube
12: contact member 13: piston member
20: support unit 21: base member
22: support tube 30: control unit

Claims (9)

A calculation unit for measuring a thickness of the material to be measured; And
A support unit to which the calculation unit is connected and into which the measured material is inserted;
The corrosion depth measuring device comprising: The method according to claim 1,
The support unit includes:
A base member; And
A support pipe coupled to a lower end of the base member, the support pipe being inserted into a hollow portion formed in the inner portion of the base member through an entry opening formed in an upper end portion of the base member;
The corrosion depth measuring device comprising: 3. The method of claim 2,
Wherein the support pipe is coupled to an upper side of a discharge hole formed in the base member so as to communicate with the hollow portion, and a width of the lower hollow portion is formed to be smaller than a width of the upper hollow portion. The method of claim 3,
Wherein the support pipe is provided with a lower hollow portion in an inclined or stepped shape. The method according to claim 1,
The calculation unit calculates,
A socket tube communicatively coupled to the through hole formed in the side surface of the support unit;
A contact member inserted into the socket tube and moved to contact the measured material inserted into the support unit; And
And a shaft extending and contracting at both ends, the shaft including a piston member coupled to a contact member inserted into a socket tube coupled to both side portions of the support unit, respectively;
The corrosion depth measuring device comprising: 6. The method of claim 5,
Wherein the contact member is provided so that a maximum length of a portion inserted into the socket pipe is longer than a maximum extension length of the piston member to prevent the contact member from being detached from the socket pipe. 6. The method of claim 5,
Wherein a plurality of the socket pipes are arranged at regular intervals in the height direction of the support unit. 6. The method of claim 5,
A control unit, connected to the piston member, for sensing movement distances of both end shafts of the piston member and storing the movement distance;
The corrosion depth measuring device comprising: A first preparation step of inserting and providing a material to be measured into a support unit provided in the corrosion depth measuring apparatus according to any one of claims 1 to 7;
A first measuring step of measuring a distance between both end shafts of the piston member provided in the calculation unit when a contact member provided in the calculation unit of the corrosion depth measurement apparatus makes contact with both side surfaces of the measured workpiece;
A second preparation step of removing the corrosive substance from the measured material and then reinserting it into the support unit;
A second measuring step of re-contacting the contact member to both sides of the measured material and re-measuring a distance between the both end shafts of the piston member; And
A corrosion depth calculating step of collecting, as data, the absolute value of the difference between the values measured in the first measuring step and the second measuring step;
The corrosion depth measuring device comprising:

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