KR101178448B1 - A Creep-Measurement Apparatus for Various Creep-Tests and Operation Method of the Same - Google Patents

Abstract

PURPOSE: A creep measurement device capable of performing various creep tests and a method for driving the same are provided to thoroughly examine a product condition of a material receiving load under high temperatures for long time. CONSTITUTION: A creep measurement device comprises a lever unit(300), a lever loading unit(400), a weight center regulating unit(310), a first grip unit(500), a testing body inserting unit(600), a second grip unit(700), a displacement sensor unit(710), a third grip unit(800), an impact protection unit(900), a motor unit(1000), a vertically moving block(810), a controlling unit(1100), and a display unit(1200). The lever unit is arranged in the top of a frame unit, thereby vertically moving or fixing a weight. The lever loading unit is arranged in the outer side of the frame unit, thereby being connected to the lever unit. The lever loading unit seats the weight or attaches/detaches the weight. The weight center regulating unit distributes weighted power caused by the weight of the lever loading unit, thereby regulating the center of the weight of the lever unit. The first grip unit is perpendicularly connected to the lower central part of the lever unit. The testing body inserting unit provides a space where can be heated, cooled, and pressed at high pressures or low pressures. The second grip unit is perpendicularly connected to the lower part of the testing body inserting unit. The displacement sensor unit measures tensile strength and fatigue strength caused by a creep test.

Description

Creep measuring device capable of various creep tests and its driving method {A Creep-Measurement Apparatus for Various Creep-Tests and Operation Method of the Same}

The present invention relates to a technology related to precision testing equipment for testing, and in particular, a creep measuring device that obtains a creep curve and creep strength in real time through a tensile creep test or a compression creep test by applying a constant load to a test specimen at a constant temperature. And a driving method thereof.

Conventionally, many lever creep testers have been used. However, the majority of consumers do not know the structure of the equipment under load, but do not understand the structure of the equipment at all and buy only the product manual or catalogue. Due to the severe component error of the company, even if the test for a long time, it is difficult to find the test vectors they want, there is a problem that frequently causes only a waste of time.

In addition, when creep testing is carried out on test specimens that related workers or companies wish to release in the near future, it is often necessary to conduct high temperature tests of more than 900 degrees according to the test specification, and the test load is small but requires a series of precision. Due to the increasing number of processes, the direct creep tester is being mass-produced as an alternative material to supplement the problems of the lever creep tester, and another alternative, the servo creep tester, is not being mass-produced.

With the exception of the servo creep tester, the direct creep tester was preferred to the lever creep tester from the consumer's point of view, and the direct creep tester was found to be superior in terms of the sales rate than the lever creep tester.

Recent creep tests result in higher heat generation due to the higher integration of electronic circuits, and in automobiles, the shape is streamlined to reduce fuel efficiency and the air intake for cooling is reduced. Rises to about 180 ° C. Due to such high temperature deformation, there is a problem that the effect on the overall deformation of the material is increased.

In general, materials used in civil engineering, construction, and various living areas are subject to the American Society for Testing and Materials (ASTM) or Korean Industrial Standards to ensure that their properties are suitable for their intended use. Various mechanical properties are measured according to the test method specified in Standard, KS). For example, in constructing the retaining wall, it is preferable to measure the tensile creep in order to identify the characteristics of the creep that causes the shape deformation and separation of the retaining wall. The tensile creep is connected to the load for the test piece, such as geogrid, pulled in the direction of gravity, or connected to the screw connected to the motor and pulled each other in the direction of action to measure the increase in the length of the test piece according to the weight, The tensile creep elongation is calculated based on the strain divided by the initial length. The grip for fixing the test piece in the configuration of the tensile creep tester has been proposed by the applicant of the tension creep tester filed in Korea Patent Application No. 2007-50507 dated May 23, 2007, the configuration is mutually opposite A pair of bodies having a contact surface of the shape is installed up and down by the side plates of both sides, and the body 111a located at the bottom of the pair of bodies to be mounted to be moved up and down along the side plate between the body After inserting the specimen into the body, the bodies are brought into close contact with each other so that the ends of the specimen are fixed. However, the conventional grip as described above undergoes a process of winding the test piece to the outside of the body several times to securely hold the test piece to the grip. In the case of a test piece such as a fabric having a long length and width, the test piece is placed outside the fixed grip. Winding work was very troublesome.

The creep measuring apparatus and its driving method of the present invention have been devised to solve the problems of the prior art, and the first object of the present invention is to change the shape of the test specimen by applying a constant load at a constant temperature to a tensile creep test. Alternatively, to obtain creep curves and creep strengths in real time through compression creep tests, to closely examine the quality of materials loaded under high temperature for extended periods of time, such as, for example, boiler water pipes or steam turbine blades.

In addition, the second object of the present invention is to further improve the customer satisfaction of consumers who want to purchase this by screening and mass-producing only the test body that passed the creep test for the test object.

In addition, the third object of the present invention is to standardize and mass-produce the specimens that have passed the creep test to meet the consumer's purchasing needs, which greatly contributes to the increase in sales and related businesses (or related companies). To do this.

The present invention for achieving the above object includes the following configuration.

That is, the creep measuring apparatus according to an embodiment of the present invention, the body portion forming the body of the measuring device and the frame portion forming the frame of the measurement space in the apparatus that can be creep in various forms in the basic configuration, the frame portion A lever unit positioned at an upper portion to move or fix a previously connected weight up and down; A lever load part positioned outside the frame part and connected to the lever part to mount or detach the weight; A center of gravity adjustment unit that equally adjusts the center of gravity of the lever unit by dispersing the bias of the force due to the weight of the lever load unit; A first grip part connected in a vertical direction with a center of the lower part of the lever part to be fixed in the frame part; A test specimen charging section for mounting a test specimen and providing a space where heating, cooling, high pressure or low pressure can be applied during the creep test; A second grip portion connected in a vertical direction with a lower portion of the test object loading portion; Displacement sensor unit for measuring the tensile strength or fatigue strength according to the creep test; A third grip part connected to or disconnected from the lower part of the second grip part and the upper part of the frame part so as to be detachable; An impact protection unit positioned outside the frame unit and having impact absorbing means for absorbing impact energy generated when the weight falls; A motor part mounted in the body part and generating an external force by driving a motor; A vertically moving block configured to apply the external force to the second grip part or the third grip part; A controller mounted in the body part and controlling the motor driving as well as controlling the internal environment in the test body charging part by checking a temperature value or a pressure value selected by an externally derived keyboard operation; And a display unit that is displayed in the body part appearance and displays the result value according to the tensile strength or the fatigue strength together with the temperature value or the pressure value.

In addition, the driving method of the creep measuring apparatus according to an embodiment of the present invention, the driving method for performing various types of creep test with a basic configuration of the body portion forming the body of the measuring device and the frame portion forming the frame of the measurement space The method further comprises: a lever unit positioned above the frame part to move or fix a previously connected weight up and down, and inserting a stator into an instrumented moving fixing part to maintain a tilt as it is; Mounting and detaching the weight while a lever load part is located outside the frame part and connected to the lever part; Adjusting the center of gravity of the lever part evenly by distributing a bias of the force due to the weight of the lever load part; Attaching and attaching a first grip part in a direction perpendicular to the center of the lower part of the lever part such that the first grip part is fixed in the frame part; A test object loading unit mounting the test body and providing a space to which heating, cooling, high pressure or low pressure can be applied during the creep test; Attaching and attaching a second grip part in a vertical direction to a lower portion of the test object loading part; A displacement sensor unit measuring tensile strength or fatigue strength according to the creep test; Connecting or disconnecting a third grip part to be detachable between a lower part of the second grip part and an upper part of the frame part; Absorbing the impact energy generated by the impact protection unit located outside the frame unit by the fall of the weight using an instrumented shock absorbing means; Generating an external force by driving a motor part mounted in the body part; A vertical moving block applying the external force to the second grip part or the third grip part; Controlling the motor driving as well as the internal environment in the test object loading unit by confirming a temperature value or a pressure value selected by a controller mounted in the body part by an externally derived keyboard operation; And displaying the result value according to the tensile strength or the fatigue strength together with the temperature value or the pressure value.

The creep measuring apparatus and its driving method according to the present invention apply creep curves and creep strengths in real time through a tensile creep test or a compressive creep test by applying a constant load to a test specimen at a constant temperature to obtain a creep curve and a creep strength. The first effect is to closely examine the quality of the materials under load while being at high temperature for a long time, such as the wings of a water pipe or steam turbine.

In addition, the present invention has a second effect that can further improve the customer satisfaction of consumers who want to purchase it by screening and mass-producing only the test body that passed the creep test for the test object.

In addition, the present invention has a third effect of standardizing and mass-producing a test sample that has passed the creep test to satisfy the consumer's purchase needs, and greatly contribute to the increase in sales and related businesses (or related companies). Gives.

1 is a view showing a creep measuring device according to an embodiment of the present invention.
2 is a diagram illustrating a creep measuring device according to another embodiment of the present invention.
3 is a view illustrating a creep measuring apparatus according to another embodiment of the present invention.
4 is a detailed view according to an exemplary embodiment of FIG. 1.
FIG. 5 is a detailed view according to another exemplary embodiment of FIG. 2.
FIG. 6 is a detailed view according to still another example of FIG. 3.
7 is a flowchart illustrating a method of driving a creep measuring apparatus according to an embodiment of the present invention.

[Example]

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a creep measuring device according to an embodiment of the present invention.

Referring to FIG. 1, the creep measuring apparatus 2000 is a device capable of creep testing in various forms. The creep measuring apparatus 2000 creeps in real time through a tensile creep test or a compression creep test by applying a constant load to a test specimen at a constant temperature. Curve and creep strengths can be obtained.

The creep measuring device 2000 includes a body part 100, a frame part 200, a lever part 300, a lever load part 400, a center of gravity adjustment part 410, and a first grip part ( 500, the test object charging unit 600, the second grip unit 700, the displacement sensor unit 710, the third grip unit 800, the vertical moving block 810, the impact protection unit ( 900, a motor unit 1000, a control unit 1100, and a display unit 1200.

Body portion 100 forms the body of the measuring device.

The frame part 200 forms a frame of the measurement space.

The lever part 300 is manufactured in the form of a long iron rod in which a lever principle is applied to produce a large force with a small force during the creep test. The lever part 300 is positioned on the upper part of the frame part 200 and moves up and down previously connected weights. Or it is fixed, by inserting a stator (not shown) in the mechanical moving fixed portion 310 to maintain the inclination as it is.

The lever load part 400 is a detailed device located on the outside of the frame part 200 and connected to the lever part 300 so as to mount or detach the weight. 500) and the specimen loading part 600 is pushed to the upper portion of the frame portion 200 and at the same time the tensile strength or fatigue strength to pull the second grip portion 700 and the third grip portion 800 to the lower portion of the frame portion 200 Generate.

At this time, the displacement sensor unit 710 measures the tensile strength or fatigue strength according to the creep test.

As another example, if the third grip portion 800 to be described below is disconnected as shown in FIG. 2, the lever load portion 400, which is an alternative to the third grip portion 800, is the third grip portion 800. In place of the second grip portion 700 and also connected to the displacement sensor unit 710.

At this time, one side end of the lever unit 300 is fixed by the binding means 210 previously installed on the adjacent surface while abutting the adjacent surface closest to the frame portion 200, the weight (not shown) It is loaded in the loading space prepared for the central portion (400).

In addition, at this time, the displacement sensor unit 710 measures the tensile strength or the fatigue strength to pull the test body charging unit 600 to the lower portion of the frame 200 as the creep test.

Here, it is noted that the center of gravity adjustment unit 410 uniformly adjusts the center of gravity of the lever unit 300 by dispersing the bias of the force due to the weight of the lever load unit 400.

The first grip part 500 is attached to be fixed in the frame part 200, and is connected in a vertical direction with a lower center of the lever part 300.

The specimen charging unit 600 is any one of a shield, a chamber, and a furnace provided to create a test atmosphere when the creep test is to be performed in a 400 to 1200 degree or -190 to 400 degree environment. The test specimen shall be mounted and provided with a space where heating, cooling, high pressure or low pressure may be applied during the creep test.

The second grip part 700 is connected to the lower part of the test object loading part 600 in a vertical direction.

The third grip part 800 is connected or disconnected to be detachably attached between the lower part of the second grip part 700 and the upper part of the frame part 200.

More precisely, the third part 800 may be set to be detachable between the displacement sensor part 710 and the vertical movement block 810.

The impact protection unit 900 is located outside the frame unit 200, and preliminarily prepares shock absorbing means for absorbing impact energy generated when a fall (not shown) and upper portion of the shock absorbing means are absorbed. An elastic body for cushioning the elastic energy is provided.

Here, the elastic body is a structure made of a material of spring steel or phosphor bronze, in the present embodiment, at least one cylindrical compression coil spring is attached to the lower part of the shock absorbing means, and the shock absorbing means is a strip foam, a biofill, a mattress and a sponge Note that the selected one of the cotton.

The motor part 1000 is mounted in the body part 100 as shown in FIG. 3, and is a detailed device for transmitting the external force generated by the motor driving to the vertical movement block 810, and the lever load part 400 is provided. Although not connected to the lever unit 300 (in fact, the potential energy or kinetic energy transferred to the frame unit 200 due to no weight being seated on the lever load unit 400 is estimated to be fine), The external force transmitted to the moving block 810 draws the second grip part 700 or the third grip part 800 to the lower portion of the frame part 200 to generate tensile strength or fatigue strength.

The controller 1100 is mounted in the body part 100, and controls the internal environment in the test object charging part 600 as well as controlling the motor driving by checking the temperature value or the pressure value selected by an externally derived keyboard (not shown) operation. do.

The controller 1100 recognizes the current progress state of the creep test by using an internal memory when a power off occurs due to a failure to receive power supported from an external power supply (not shown). If it is on, control to restart the creep test from the present time.

The display unit 1200 is displayed on the exterior of the body unit 100 and displays a result of tensile strength or fatigue strength measured by a creep test together with a temperature value or a pressure value.

As a result, the tensile strength or the fatigue strength can be obtained through a creep test using the motor unit 1000 or the lever load unit 400. Therefore, the calculation unit 1110 associated with the control unit 1100 converts the tensile strength or the fatigue strength numerically to derive the result value.

In addition, the transmission and reception unit (not shown) associated with the control unit 1100 transmits a result of tensile strength or fatigue strength to a remote control server (not shown) previously connected with a wired / wireless communication network.

The remote control server (not shown) temporarily stores the tensile strength or fatigue strength transmitted in real time through the wired / wireless communication network, and only when receiving a data reception request from a communication terminal (not shown) that is allowed to access the web of the high-speed internet network. The result of tensile strength or fatigue strength extracted by creep test is sent to high speed internet network.

As an added description, FIG. 4 exemplarily illustrates FIG. 1, which includes all of the components described in FIG. 1 and further improves the understanding of those skilled in the art and produces, uses, and products manufactured from the present invention. This is a detailed drawing showing the real object in more detail so that the transfer, rental or import, or the transfer of the goods or the offer for the rental are fully performed.

In the same vein, FIG. 5 is a detailed view of FIG. 2 and FIG. 6 is a detailed view of FIG. 3, and additional descriptions of FIGS. 5 and 6 are described above with reference to FIG. 4. Contrary to the additional explanations for this.

7 is a flowchart illustrating a method of driving a creep measuring apparatus according to an embodiment of the present invention.

Referring to FIG. 7, the driving method of the creep measuring apparatus is a driving method for performing various types of creep tests based on a basic configuration of a body part forming a body of a measuring device and a frame part forming a frame of a measuring space, and uniformly testing a specimen. Creep curves and creep strengths can be obtained in real time using a tensile creep test or a compressive creep test by applying a constant load at temperature.

First, the lever part is positioned above the frame part to move or fix the previously connected weight up and down, and inserts the stator into the mechanical moving fixing part to maintain the inclination as it is (S10).

The lever load portion is located outside the frame portion and connected to the lever portion to seat or detach the weight (S20).

The center of gravity adjustment unit equally adjusts the center of gravity of the lever by dispersing the bias of the force due to the weight of the lever load (S30).

The first grip part is connected and attached in a vertical direction with the lower center of the lever part to be fixed in the frame part (S40).

The test body loading part mounts the test body and provides a space where heating, cooling, high pressure or low pressure can be applied during the creep test (S50).

The second grip part is connected and attached in a vertical direction with the lower part of the test object loading part (S60).

Displacement sensor unit measures the tensile strength or fatigue strength according to the creep test (S70).

The third grip part is connected or disconnected so as to be detachable between the lower part of the second grip part and the upper part of the frame part (S80).

The impact protection unit located outside the frame unit absorbs the impact energy generated when the weight falls by using a mechanically absorbed shock absorbing means (S90).

The motor mounted in the body part generates an external force by driving the motor, and the vertical movement block applies the external force to the second grip part or the third grip part (S100 and S110).

In this case, when the lever load part is not connected to the lever part, the external force pulls the second grip part or the third grip part down the frame part to generate tensile strength or fatigue strength.

The controller mounted in the body part checks the temperature value or pressure value selected by an externally derived keyboard operation, thereby controlling not only the internal environment in the test object charging part but also the motor driving (S120).

The display unit expressed in the exterior of the body part displays the result value for the tensile strength or the fatigue strength measured through the creep test together with the temperature value or the pressure value (S130).

As a result, the tensile strength or fatigue strength is obtained through creep test using the motor part or lever load part, and the calculation unit associated with the control unit numerically converts the tensile strength or fatigue strength to derive the result.

The additional operation of the driving method of the creep measuring device according to the embodiment of the present invention can be easily implemented as described below.

That is, as the lever load portion puts the weight in the equipment-loading space, the tensile strength or fatigue of pulling the first grip portion and the test specimen loading portion into the upper portion of the frame portion and simultaneously pulling the second grip portion and the third grip portion down the frame portion. Generate strength.

In addition, when the third grip part is disconnected, the lever load part, which is an alternative to the third grip part, is connected to the lower part of the second grip part, so that one end of the lever part is provided on the adjacent face while contacting the adjacent face closest to the frame part. It is secured by means of collusion.

When loaded into the loading space provided for the additional lever load, the displacement sensor measures the tensile or fatigue strength that pulls the test specimen loading into the lower part of the frame.

The controller recognizes the current progress state of the creep test by using the internal memory when the power off occurs, and then, after confirming that the power is turned on, restarts the creep test from the current point of time.

Although the present invention has been described with reference to the accompanying drawings, it is merely one example of various embodiments including the gist of the present invention, which can be easily implemented by those skilled in the art. It is clear that the present invention is not limited to the above-described embodiment only. Therefore, the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent to the change, substitution, substitution, etc. within the scope not departing from the gist of the present invention shall be the right of the present invention. It will be included in the scope. In addition, some of the components of the drawings are intended to more clearly describe the configuration, and it is clear that the exaggerated or reduced size is provided.

2000: creep measuring device 100: body
200: frame portion 300: lever portion
310: center of gravity adjustment part 400: lever load part
500: first grip part 600: test body charging part
700: second grip part 710: displacement sensor part
800: third grip portion 810: vertical movement block
900: impact protection unit 1000: motor unit
1100 control unit 1200 display unit

Claims (17)

In the creep measuring device capable of creep test of various forms with a basic configuration of the body portion forming the body of the measuring device and the frame portion forming the frame of the measurement space,
A lever unit positioned on the frame part and configured to move or fix a previously connected weight up and down;
A lever load part positioned outside the frame part and connected to the lever part to mount or detach the weight;
A center of gravity adjustment unit that equally adjusts the center of gravity of the lever unit by dispersing the bias of the force due to the weight of the lever load unit;
A first grip part connected in a vertical direction with a center of the lower part of the lever part to be fixed in the frame part;
A test specimen charging section for mounting a test specimen and providing a space where heating, cooling, high pressure or low pressure can be applied during the creep test;
A second grip portion connected in a vertical direction with a lower portion of the test object loading portion;
Displacement sensor unit for measuring the tensile strength or fatigue strength according to the creep test;
A third grip part connected to or disconnected from the lower part of the second grip part and the upper part of the frame part so as to be detachable;
An impact protection unit positioned outside the frame unit and having impact absorbing means for absorbing impact energy generated when the weight falls;
A motor part mounted in the body part and generating an external force by driving a motor;
A vertically moving block configured to apply the external force to the second grip part or the third grip part;
A controller mounted in the body part and controlling the motor driving as well as controlling the internal environment in the test body charging part by checking a temperature value or a pressure value selected by an externally derived keyboard operation; And
And a display unit which is displayed on the outer surface of the body unit and displays a result value according to the tensile strength or the fatigue strength together with the temperature value or the pressure value.
The method of claim 1, wherein the lever unit,
A creep measurement apparatus, characterized by inserting a stator into a mechanically fixed moving fixture to maintain the inclination as it is.
The method of claim 1, wherein the lever load portion,
And the tensile strength or the fatigue strength for pushing up the first grip part and the test object loading part to the upper part of the frame part by placing the weight in the instrument loading space.
The method of claim 3, wherein the lever load portion,
And generating the tensile strength or the fatigue strength which pulls down the second grip portion and the third grip portion below the frame portion.
The method of claim 1,
When the lever load part, which is an alternative to the third grip part, is connected to the lower part of the second grip part after disconnection of the third grip part, the one end of the lever part is in contact with an adjacent face closest to the frame part while being in contact with the adjacent face. A creep measuring device, characterized in that fixed by means of a collocation means pre-installed on the bed.
The method of claim 5, wherein
When the lever load part is connected to the lower part of the second grip part, the weight is loaded in a loading space provided in the lever load part, and the displacement sensor part measures the tensile strength or fatigue strength which pulls the test body load part down the frame part. Creep measuring device, characterized in that.
The method of claim 1, wherein the impact protection unit,
Impact-absorbing means formed of one selected from stripe, biofill, mattress, sponge and cotton; And
And an elastic body for buffering the impact energy absorbed in the upper portion of the shock absorbing means with a pre-prepared elastic energy.
The method of claim 1,
Even if the lever load portion is not connected to the lever portion, the external force pulls the second grip portion or the third grip portion below the frame portion to generate the tensile strength or the fatigue strength. Creep measuring device.
The method of claim 1,
As the tensile strength or the fatigue strength is obtained through the creep test using the motor portion or the lever load portion, the calculation unit associated with the control unit numerically converts the tensile strength or fatigue strength to derive the result value. A creep measuring device characterized by the above-mentioned.
The method of claim 9, wherein the transceiver associated with the control unit,
A creep measuring device, characterized in that for transmitting the result to a remote control server connected to the wired and wireless communication network.
The apparatus of claim 1,
When the power off occurs, the current progress state of the creep test is recognized using an internal memory, and when the power is turned on, the creep test is controlled to be restarted from the current time point. Measuring device.
In the driving method of the creep measuring apparatus for performing a creep test of various forms with a basic configuration of the body portion forming the body of the measuring device and the frame portion forming the frame of the measurement space,
A lever part positioned on an upper part of the frame part to move or fix a previously connected weight up and down, and inserting a stator into an apparatus-moved moving fixing part to maintain a tilt as it is;
Mounting and detaching the weight while a lever load part is located outside the frame part and connected to the lever part;
Adjusting the center of gravity of the lever part evenly by distributing a bias of the force due to the weight of the lever load part;
Attaching and attaching a first grip part in a direction perpendicular to the center of the lower part of the lever part such that the first grip part is fixed in the frame part;
A test object loading unit mounting the test body and providing a space to which heating, cooling, high pressure or low pressure can be applied during the creep test;
Attaching and attaching a second grip part in a vertical direction to a lower portion of the test object loading part;
A displacement sensor unit measuring tensile strength or fatigue strength according to the creep test;
Connecting or disconnecting a third grip part to be detachable between a lower part of the second grip part and an upper part of the frame part;
Absorbing the impact energy generated by the impact protection unit located outside the frame unit by the fall of the weight using an instrumented shock absorbing means;
Generating an external force by driving a motor part mounted in the body part;
A vertical moving block applying the external force to the second grip part or the third grip part;
Controlling the motor driving as well as the internal environment in the test object loading unit by confirming a temperature value or a pressure value selected by a controller mounted in the body part by an externally derived keyboard operation; And
And displaying a result value according to the tensile strength or the fatigue strength together with the temperature value or the pressure value.
The method of claim 12, wherein the lever load portion,
The tensile strength of pushing the first grip part and the test object loading part to the upper part of the frame part while lowering the second grip part and the third grip part to the lower part of the frame part as the weight is placed on the apparatus-loading space; A method of driving a creep measuring apparatus further comprising the step of generating a fatigue strength.
The method of claim 12,
When the third grip part is disconnected, connecting the lever load part, which is a substitute for the third grip part, to the lower part of the second grip part;
Fixing one end portion of the lever part to an adjacent surface closest to the frame portion by means of a binding means pre-installed on the adjacent surface;
Loading in a loading space provided in the additional lever load portion; And
And measuring the tensile strength or the fatigue strength of the displacement sensor unit pulling down the test object loading portion to the lower portion of the frame portion.
The method of claim 12,
The lever load portion being unconnected with the lever portion; And
Driving the creep measurement apparatus, wherein the external force pulls the second grip portion or the third grip portion below the frame portion to generate the tensile strength or the fatigue strength. .
The method of claim 12,
Obtaining the tensile strength or the fatigue strength through the creep test using the motor part or the lever load part; And
And calculating the numerical value of the tensile strength or the fatigue strength associated with the control unit to derive the result value.
The method of claim 12,
The control unit recognizes the current progress state of the creep test by using an internal memory when the power off occurs, and after confirming that the power is turned on, controlling to restart the creep test from the current time point. A method of driving a creep measuring apparatus comprising a.

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