KR200496071Y1 - Multi-terminal jig for electrolytic etching test - Google Patents

Abstract

The present invention relates to a multi-terminal jig for an electrolytic etching test that can improve the productivity of an etching test by distributing a uniform current to a metal specimen placed in a separate space to electrolytically etch several metal specimens at the same time, and the test body A divider that divides and connects the positive and negative wires connected to the specimen into the number corresponding to the specimen, a display that detects the current output from the terminals and displays the amount of change in the current value for each terminal over time, in each space separated through the partition wall. An electrolyte container in which the specimen is placed and supported in the electrolyte, a metal plate to which the positive wire is connected, and a fixed stand for fixing the electrode to which the negative wire is connected can be moved, and power is supplied to the test body to output current , and a controller that cuts off the power of the test body after the holding time has elapsed when the current value reaches the target current value.

Description

Multi-terminal jig for electrolytic etching test {MULTI-TERMINAL JIG FOR ELECTROLYTIC ETCHING TEST}

The present invention relates to a multi-terminal jig for an electrolytic etching test, and more specifically, it is possible to electrolytically etch several metal specimens simultaneously by distributing a uniform current to a metal specimen disposed in a separate space, thereby improving the productivity of the etching test. It relates to a multi-terminal jig for electrolytic etching test that can be used.

In general, when observing the microstructure of metal materials such as ferrous and non-ferrous alloys, etching is performed. For metals that do not easily corrode, such as stainless steel, general chemical etching methods cannot be used. Electrolytic etching equipment using chemical reaction is mainly used.

The electrolytic etching apparatus supports the etching target metal in the processing tank while the reaction solution is stored in the processing tank, and analyzes the reaction with iron ions dissociated from the etching target metal by applying an electric current to the etching target metal. Analyze the organization.

In the conventional method of exposing the metal structure by electrolytic etching, an electrochemical reaction occurs when an electrolytic solution is filled in an etching bath, a cathode electrode is inserted, the anode electrode is brought into contact with the specimen, and immersed in the electrolytic solution, and an electric current is applied to the electrode. It is possible to corrode the metal to reveal the structure of the metal.

In this case, in the electrolytic etching apparatus, the cathode wire and the anode wire are fixed to the fixing jig, and the voltage must be adjusted to reach the target current value of 1A. In a state where the distance between the electrodes is fixed, the user increases or decreases the output voltage value of the test equipment to reach the target current value of 1A, and the electrolytic etching test is performed in a manner that is maintained for 90 seconds.

Existing electrolytic etching devices on the market can test only one specimen at a time, and when two or more specimens are to be tested at the same time, it is difficult to uniformly distribute current, so there is a problem in that there is a difference in corrosion.

Korean Patent Application Laid-Open No. 10-2004-0055987 discloses a fixing plate installed spaced apart from the upper side of an etching reagent container, a screw shaft passing through both sides of the cut end of the fixing plate, and a screw thread inserted into the screw thread of the fixing plate within the cut width of the fixing plate. The specimen can be etched uniformly, and the etching rate is lower than the conventional one-rod type, including a specimen grounding rod holder which is movably installed and fixed to the specimen grounding rod at the lower end, and a settling rod fixed to a fixed plate at a distance from the specimen grounding rod. Disclosed is an electrolytic etching apparatus capable of adjusting the rod spacing that is improved compared to the present invention.

Korean Patent Publication No. 10-2004-0055987 (June 30, 2004, published)

Therefore, the present invention is derived to solve the above problems, and the present invention distributes a uniform current to a metal specimen disposed in a separate space to electrolytically etch several metal specimens at the same time, thereby improving the productivity of the etching test An object of the present invention is to provide a multi-terminal jig for electrolytic etching test that can be performed.

In addition, the present invention is to provide a multi-terminal jig for electrolytic etching testing that can ensure quality uniformity while testing multiple specimens at the same time by improving to automatically apply the output current value and holding time manually adjusted by the user. There is this.

Other objects of the present invention will become clearer through the examples described below.

A multi-terminal jig for an electrolytic etching test according to an aspect of the present invention includes: a distributor including a terminal for dividing and connecting the positive and negative wires connected from the test body into numbers corresponding to the specimens of the test object; a display for detecting a current output from the terminal and displaying a change amount of the current value for each terminal according to time; an electrolyte container in which a space is separated through a partition wall, the specimen is disposed in each of the separated spaces, and an electrolyte is supplied to each of the separated spaces to support the specimen; a fixing stand for fixing the metal plate to which the positive wire is connected in the electrolyte container, and for fixing the electrode to which the negative wire is connected to be movable; and a controller that supplies power to the test body to output a current, and cuts off the power of the test body after a preset holding time has elapsed when the current value reaches a preset target current value.

The multi-terminal jig for an electrolytic etching test according to the present invention may include one or more of the following embodiments.

For example, the divider may be arranged in a parallel structure so that the current output from the test body is uniformly distributed to each of the specimens at the target current value, and may have a resistance at the terminal.

The display unit may provide the amount of change in the current value for each terminal according to time and whether the target current value for each terminal is maintained as a graph.

The electrolyte container may form the partition wall as an insulating structure to block current flow between specimens disposed in each of the separated spaces, and a scale bar may be installed in each of the separated spaces.

The controller may emit a lamp or output a warning sound through a speaker when the target current value is reached or the holding time elapses.

Communication that is connected to a terminal through a memory and wired or wireless communication that stores the current value in association with a time corresponding to the current value and transmits to the terminal the amount of change in the current value for each terminal and whether to maintain the target current value for each terminal It may further include a module.

The multi-terminal jig for electrolytic etching test according to the present invention provides the following effects.

The present invention has the effect of improving the productivity of the etching test by distributing a uniform current to the metal specimens arranged in a separate space to electrolytically etch several metal specimens at the same time.

The present invention has the effect of ensuring uniformity of quality while testing multiple specimens at the same time by improving the automatic application of the output current value and holding time that the user manually adjusted.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a schematic diagram showing a multi-terminal jig for an electrolytic etching test according to the present invention.
2 is a view illustrating assuming the shape of a multi-terminal jig for an electrolytic etching test according to the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all transformations, equivalents and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components, regardless of reference numerals, are given the same reference numbers and duplicates thereof A description will be omitted.

Hereinafter, a multi-terminal jig for an electrolytic etching test according to embodiments of the present invention will be described in detail with reference to FIGS. 1 and 2 .

1 is a schematic diagram illustrating a multi-terminal jig for an electrolytic etching test according to the present invention, and FIG. 2 is a diagram illustrating assuming the shape of a multi-terminal jig for an electrolytic etching test according to the present invention.

1 and 2, the multi-terminal jig 100 for an electrolytic etching test according to the present invention is a distributor 110, a display 120, an electrolyte container 130, a fixed stand 140 and a controller 150 ), and may further include a memory 160 and a communication module 170 .

The divider 110 is a positive divider ( 111) and a negative electrode distributor 112 including a plurality of terminals 112-1 for dividing and connecting the negative electrode wire 12 to the number corresponding to the specimen 20 to be tested. The test body 110 may be turned on and off under the control of the controller 150 to supply current to the plurality of terminals 111-1 and 112-1.

The positive divider 111 divides one positive wire 11 connected to the test body 10 to be connected to a plurality of terminals 111-1 one by one, and arranges a resistor in the plurality of terminals 111-1. Thus, the current output from the test body 10 may be uniformly distributed to each of the specimens 20 as a target current value.

The negative electrode divider 112 divides one negative wire 12 connected to the test body 10 to be connected to a plurality of terminals 112-1 one by one, and arranges resistors in the plurality of terminals 112-1. Thus, the current output from the test body 10 may be uniformly distributed to each of the specimens 20 as a target current value.

The anode divider 111 and the cathode divider 112 may be arranged in a parallel structure so that the current is uniformly distributed in each separated space of the electrolyte container 130 . The anode divider 111 and the cathode divider 112 are capable of replacing resistances for each terminal (1111-1, 112-1), so all metal corrosion tests using various voltages and currents, that is, electrolytic etching, in addition to the A262-A test are possible. can be implemented to do so.

In an embodiment, a plurality of terminals 111-1 and 112-1 are respectively formed in the positive electrode distributor 111 and the negative electrode distributor 112 , and energization on/off is determined according to the number of specimens 20 . Thus, unnecessary waste of current can be prevented. That is, since the plurality of terminals 111-1 and 112-1 are required as many as the number of specimens 20, in the case of specific terminals 111-1 and 112-1 exceeding the number of specimens 10, no current flows. This can prevent wastage of current.

The display 120 detects the current output from each of the plurality of terminals 111-1 and 112-1, and displays the amount of change in the current value for each terminal over time and whether the target current value for each terminal is maintained in analog or digital form. do. The display 120 may include a screen that allows the user to visually see the amount of change in the current value, and may display the amount of change in the current value for each terminal and whether the target current value for each terminal is maintained in a graph to improve visibility.

The display 120 displays which terminal 111-1 of the terminals 111-1 associated with the positive wire 11 when displaying the amount of change in the current value for each terminal, and the terminal 112- associated with the negative wire 12 1) of which terminal 112-1 may be displayed.

The electrolyte container 130 is used to support the specimen 20 and store the electrolyte to electrolytically etch the specimen 20, and the space is separated into a plurality of spaces through the partition wall 131 of the insulating structure, and each current in the separated space In a state in which the flow is blocked, the electrolytic etching of the plurality of specimens 20 may be simultaneously performed.

In the electrolyte container 130 , the specimen 20 may be disposed in each of the separated spaces, and the specimen 20 may be supported by supplying an electrolyte to each of the separated spaces. In the electrolyte container 130 , the metal plate 40 connected to the divided anode wire 11-1 and the electrode rod 50 connected to the divided cathode wire 12-1 may be supported in each of the separated spaces. The electrolyte container 130 may provide a space so that an electrochemical reaction occurs in the electrolyte by the metal plate 40 and the electrode 50 to enable the electrolytic etching of the specimen 20 .

In the electrolyte container 130, a scale bar 132 is installed in each of the separated spaces so that the user can know the height of the electrolyte, and the electrolyte can be maintained at a prescribed height or more.

The fixed stand 140 is disposed inside the electrolyte container 130 or on the upper part of the electrolyte container 130 , and fixes the metal plate 40 to which the anode wire 11-1 divided in the electrolyte container 130 is connected. and the electrode rod 50 to which the divided negative electrode wire 12-1 is connected can be fixed so as to be movable.

The fixed stand 140 fixes the position of the metal plate 40 connected to the anode wire 11-1 in the electrolytic etching test process so that it does not move, and the electrode rod 50 connected to the cathode wire 12-1 is variable in position. If possible, it can be fixed using a screw or a similar structure. The fixed stand 140 may allow the user to adjust the position of the electrode 50 to adjust the distance between the electrode 50 and the metal plate 40 to change the current value applied to the electrolyte.

The user may adjust the distance between the metal plate 40 and the electrode rod 50 to reach the target current value by looking at the amount of change in the current value for each terminal displayed on the display 120 . Here, the fixed stand 140 may limit the metal plate 40 and the electrode rod 50 to maintain a minimum distance so that the metal plate 40 and the electrode rod 50 are not short-circuited too close.

The fixed stand 140 may adopt any shape as long as it has a structure for fixing the position of the metal plate 40 and fixing the position of the electrode rod 50 to be variable.

The controller 150 supplies power to the test body 10 or controls power on/off to output a current from the test body 10, and the current value output to each terminal 111-1 and 112-1 is When a preset target current value of 1A (Ampere) is reached, after a preset holding time of 90 seconds has elapsed, the power supply of the test body 10 may be controlled to cut off the current supply.

When the current value output to each terminal 111-1, 112-1 reaches the target current value or the holding time elapses, the controller 150 turns on a separately installed lamp (not shown) to emit light, or turns off the speaker. You can output a warning sound through

The controller 150 is connected to a separate sensor (not shown) to detect leakage of the electrolyte from the electrolyte container 130 , and the positive electrode 11-1 or the negative electrode 12-1 and the specimen 20 are connected to each other. It detects contact and can detect accidents that may occur during testing, such as electric shock, and can automatically cut off the power when an abnormality is detected.

The controller 150 may control to transmit the change amount of the current value for each terminal provided by the display 120 and whether the target current value for each terminal is maintained to the terminal connected through the communication module 170 .

The controller 150 may control to transmit the current value output to each terminal 111-1 and 112-1 to a terminal connected through the communication module 170 when the current value reaches the target current value or the holding time elapses. .

The controller 150 may be connected to the memory 160 and the communication module 170 to control operations and data flow of the memory 160 and the communication module 170 .

The memory 160 stores current values output for each terminal 111-1 and 112-1 in association with an output time corresponding to the current value. Also, the memory 160 may store a target current value and a holding time input from a user.

The communication module 170 may be connected to the terminal through wired or wireless communication and transmit to the terminal the amount of change in the current value for each terminal, whether the target current value for each terminal is maintained, whether the target current value is reached, and whether the maintenance time has elapsed. Here, the terminal is a device carried by the user, and may correspond to a computing device such as a personal computer (PC), a smart phone, a personal digital assistant (PDA), and a tablet PC equipped with a central processing unit, a memory device, and input/output means. have.

Although described above with reference to an embodiment of the present invention, those of ordinary skill in the art can variously modify the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. It will be appreciated that modifications and variations are possible.

100: multi-terminal jig for electrolytic etching test
110: divider
120: display
130: electrolyte container
140: fixed stand
150: controller
160: memory
170: communication module

Claims (7)

a distributor including a terminal for dividing and connecting the positive and negative wires connected from the test body into numbers corresponding to the specimens to be tested;
a display for detecting a current output from the terminal and displaying a change amount of the current value for each terminal according to time;
an electrolyte container in which a space is separated through a partition wall, the specimen is disposed in each of the separated spaces, and an electrolyte is supplied to each of the separated spaces to support the specimen;
a fixing stand for fixing the metal plate to which the positive wire is connected in the electrolyte container, and for fixing the electrode to which the negative wire is connected to be movable; and
and a controller that supplies power to the test body to output a current, and cuts off the power to the test body after a preset holding time has elapsed when the current value reaches a preset target current value,
The distributor is
It is characterized in that it is arranged in a parallel structure so that the current output from the test body is uniformly distributed to each of the specimens as the target current value and has a resistance at the terminal.
Multi-terminal jig for electrolytic etching test. delete According to claim 1,
the display is
The graph provides the amount of change in the current value for each terminal over time and whether the target current value for each terminal is maintained as a graph.
Multi-terminal jig for electrolytic etching test. According to claim 1,
The electrolyte container is
The partition wall is formed as an insulating structure to block current flow between specimens disposed in each of the separated spaces, and a scale bar is installed in each of the separated spaces.
Multi-terminal jig for electrolytic etching test. According to claim 1,
the controller
When the target current value is reached or the holding time elapses, the lamp emits light or a warning sound is output through the speaker.
Multi-terminal jig for electrolytic etching test. According to claim 1,
Communication that is connected to a terminal through a memory and wired or wireless communication that stores the current value in association with a time corresponding to the current value and transmits to the terminal the amount of change in the current value for each terminal and whether to maintain the target current value for each terminal further comprising a module
Multi-terminal jig for electrolytic etching test.
According to claim 1,
The fixed stand,
A multi-terminal jig for electrolytic etching test, characterized in that the current value is adjusted by moving the position of the electrode using a screw fixing structure.

Images