Electrolytic corrosion device for metallographic detection of austenite material

Abstract

The electrolytic corrosion device comprises a base, a cathode plate, an anode plate and a circulating pump, the top of the base is fixedly provided with a direct-current power supply and a support respectively, the support is fixedly connected with an insulating container, the top of the insulating container is provided with an opening, the top of the insulating container is plugged with an insulating bearing plate, and the insulating bearing plate is connected with the cathode plate. A round hole is formed in the middle of the insulating bearing plate, an austenite material sample to be detected is pressed on the round hole, and the anode plate is arranged above the insulating bearing plate through a limiting mechanism; according to the utility model, an austenite material sample to be detected can be fixed on the insulating bearing plate through the arranged limiting mechanism, so that the phenomenon of toppling caused by collision between the insulating bearing plate and the limiting mechanism is effectively avoided, and the detection precision is ensured; the circulating pump, the anode plate and the cathode plate are matched with the stainless steel nozzle, so that the bottom of the austenite material sample to be detected can be subjected to electrolytic corrosion detection, and the phenomena of splashing and leakage of electrolyte are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of austenite material metallographic inspection, and particularly relates to an electrolytic corrosion device for austenite material metallographic inspection. Background Art

[0002] The Chinese authorized patent with the publication number of CN212568171U discloses an improved electrolytic corrosion A method device for austenitic stainless steel metallographic specimens, which includes an austenitic stainless steel electrolytic device, an etching solution container filled with an etching solution, an insulating backing plate, a copper sheet, a specimen, a rubber ring, a stainless steel funnel and an automatic water pump. The insulating backing plate is placed above the etching solution container, the copper sheet is placed on the insulating backing plate, the specimen is placed on the copper sheet, the rubber ring is placed at the center of the top of the specimen, the lower nozzle of the stainless steel funnel is placed on the rubber ring, the water inlet pipe of the automatic water pump is placed in the etching solution in the etching solution container, and the water outlet pipe is placed in the stainless steel funnel. The positive electrode clamp of the austenitic stainless steel electrolytic device clamps the copper sheet, and the negative electrode clamp clamps the stainless steel funnel.

[0003] The above device solves some defects existing in the prior art, but in actual use, there are still some defects: for example, it directly places the insulating backing plate above the etching solution container without corresponding fixing measures, so that during wiring or other operations, it is easy to knock down the insulating backing plate from the etching solution container, and the safety is poor;

[0004] When generally detecting samples of austenitic stainless steel, the general sampling size is Φ12×10mm. The sample may be displaced under the impact of the rapidly flowing electrolyte. The above device cannot fix the austenitic stainless steel sample to be electrolytically corroded, thus affecting the detection result;

[0005] It directly places the austenitic stainless steel sample on the copper sheet without corresponding shielding around it. Although a drainage groove is provided on the insulating backing plate, the rapidly flowing electrolyte may still flow out along the copper sheet.

[0006] Therefore, an electrolytic corrosion device for austenite material metallographic inspection is proposed. Content of the Utility Model

[0007] The purpose of the utility model is to provide an electrolytic corrosion device for austenite material metallographic inspection, so as to solve or at least alleviate one or more of the above problems and other problems existing in the prior art.

[0008] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0009] An electrolytic corrosion device for metallographic inspection of austenitic materials, comprising a base. A DC power supply and a bracket for serving as the power source for electrolytic corrosion of austenitic material metallography are fixedly installed on the top of the base respectively. An insulating container for containing electrolyte is fixedly connected to the bracket. The top of the insulating container is open, and an insulating bearing plate is plugged into the top of the insulating container. A circular hole is formed in the middle of the insulating bearing plate, and a sample of austenitic material to be tested is pressed on the circular hole;

[0010] A cathode plate, which is fixedly installed at the upper end inside the insulating container. One end of the cathode plate extends out from the inside of the insulating container as a cathode connection end. The negative electrode clip on the DC power supply is electrically connected to the cathode connection end. An installation hole is formed in the middle of the cathode plate, and a stainless steel spray head is fixedly connected inside the installation hole. The stainless steel spray head is located directly below the circular hole, and there is a gap between the top of the stainless steel spray head and the bottom of the circular hole;

[0011] An anode plate, which is arranged above the insulating bearing plate through a limiting mechanism. The limiting mechanism can press the anode plate on the top of the austenitic material sample to be tested. The positive electrode clip on the DC power supply is electrically connected to the anode connection end on the anode plate;

[0012] A circulating pump, which is fixedly connected to the top of the base. The liquid inlet of the circulating pump is communicated with the lower end inside the insulating container through a first connecting pipe, and the liquid outlet of the circulating pump is communicated with the lower end of the stainless steel spray head through a second connecting pipe.

[0013] In an electrolytic corrosion device for metallographic inspection of austenitic materials according to the present invention, the limiting mechanism includes a sleeve, which is fixedly connected to the top of the base. An adjusting rod is slidably inserted into the upper end of the sleeve, and a handle screw for locking the adjusting rod is installed at the upper end of the sleeve. A connecting rod is fixedly connected to the top of the adjusting rod. The bottom of the end of the connecting rod away from the adjusting rod is fixedly connected with a pressing rod, and an insulating block is fixedly connected to the bottom of the pressing rod. An assembly groove is formed in the bottom of the insulating block, and the anode plate is fixedly connected inside the assembly groove.

[0014] In an electrolytic corrosion device for metallographic inspection of austenitic materials according to the present invention, the bottom of the anode plate extends beyond the bottom of the insulating block by 1 mm - 10 mm.

[0015] In an electrolytic corrosion device for metallographic inspection of austenitic materials according to the present invention, a groove is formed in the top of the insulating bearing plate, and the circular hole is located inside the groove.

[0016] An electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model, wherein a flanging is provided at the edge of the insulating carrier plate, and the flanging presses on the top of the insulating container.

[0017] An electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model, wherein an arc-shaped notch is provided at the upper end of the outer wall of the insulating container.

[0018] An electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model, wherein a drain pipe is communicated with the bottom of the insulating container, and a drain valve is installed on the drain pipe.

[0019] An electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model, wherein anti-slip legs are fixedly connected to the bottom of the base.

[0020] The present utility model at least has the following beneficial effects:

[0021] Through the provided limiting mechanism, the austenitic material sample to be tested can be fixed on the insulating carrier plate, effectively avoiding the phenomenon that the insulating carrier plate and the limiting mechanism are toppled due to collision, and ensuring the detection accuracy;

[0022] After the austenitic material sample to be tested is fixed on the insulating carrier plate, through the cooperation of the provided circulation pump, anode plate, cathode plate and stainless steel spray head, electrolytic corrosion detection can be carried out on the bottom of the austenitic material sample to be tested, effectively avoiding the phenomenon of electrolyte splashing and leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0024] Figure 1 is a schematic structural diagram of the electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model;

[0025] Figure 2 is a partial structural diagram of the electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model;

[0026] Figure 3 is a partial structural diagram of the electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model;

[0027] Figure 4 is a partial exploded structural diagram of the electrolytic corrosion device for metallographic inspection of austenitic materials according to the present utility model;

[0028] Figure 5 This is a schematic partial cross-sectional structure diagram of the electrolytic corrosion device for austenitic material metallographic inspection of the present utility model;

[0029] Figure 6 This is a schematic cross-sectional structure diagram of the insulating carrier plate of the present utility model.

[0030] Explanation of the reference numerals in the attached drawings:

[0031] 1. Base; 101. Anti-slip support legs; 2. DC power supply; 3. Bracket; 4. Insulating container; 401. Arc-shaped notch; 402. Drain pipe; 403. Drain valve; 5. Limit mechanism; 501. Sleeve; 502. Adjusting rod; 503. Handle screw; 504. Connecting rod; 505. Pressing rod; 506. Insulating block; 5061. Assembly groove; 6. Insulating carrier plate; 601. Groove; 602. Round hole; 603. Flange; 7. Circulation pump; 701. First connecting pipe; 702. Second connecting pipe; 8. Anode plate; 9. Cathode plate; 901. Stainless steel spray head. Specific embodiments

[0032] The following will detail the implementation manners of the present application in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0033] Please refer to Figures 1 to 6 As shown, this embodiment provides an electrolytic corrosion device for austenitic material metallographic inspection, including a base 1. Anti-slip support legs 101 are fixedly connected to the bottom of the base 1. A DC power supply 2 for serving as the power source for austenitic material metallographic electrolytic corrosion and a bracket 3 are respectively fixedly installed on the top of the base 1. An insulating container 4 for containing electrolyte is fixedly connected to the bracket 3. The top of the insulating container 4 is open, and an insulating carrier plate 6 is plugged on the top of the insulating container 4. A round hole 602 is opened in the middle of the insulating carrier plate 6. The austenitic material sample to be tested is pressed on the round hole 602. A groove 601 is opened on the top of the insulating carrier plate 6, and the round hole 602 is located inside the groove 601;

[0034] A cathode plate 9 is fixedly installed at the upper end inside the insulating container 4. One end of the cathode plate 9 extends out of the inside of the insulating container 4 as the cathode connection end. The negative electrode clip on the DC power supply 2 is electrically connected to the cathode connection end. An installation hole is opened in the middle of the cathode plate 9, and a stainless steel spray head 901 is fixedly connected inside the installation hole. The stainless steel spray head 901 is located directly below the round hole 602, and there is a gap between the top of the stainless steel spray head 901 and the bottom of the round hole 602;

[0035] Anode plate 8, the anode plate 8 is arranged above the insulating carrier plate 6 through the limiting mechanism 5. The limiting mechanism 5 can press the anode plate 8 against the top of the austenitic material sample to be measured. The positive electrode clamp on the DC power supply 2 is electrically connected to the anode connection end on the anode plate 8;

[0036] Circulating pump 7, the circulating pump 7 is fixedly connected to the top of the base 1. The liquid inlet of the circulating pump 7 is connected to the lower end inside the insulating container 4 through the first connecting pipe 701, and the liquid outlet of the circulating pump 7 is connected to the lower end of the stainless steel nozzle 901 through the second connecting pipe 702;

[0037] In this embodiment, the limiting mechanism 5 includes a sleeve 501. The sleeve 501 is fixedly connected to the top of the base 1. The upper end of the sleeve 501 is slidably inserted with an adjusting rod 502. A handle screw 503 for locking the adjusting rod 502 is installed at the upper end of the sleeve 501. The top of the adjusting rod 502 is fixedly connected with a connecting rod 504. One end of the connecting rod 504 away from the adjusting rod 502 is fixedly connected with a pressing rod 505 at the bottom. The bottom of the pressing rod 505 is fixedly connected with an insulating block 506. An assembly groove 5061 is opened at the bottom of the insulating block 506. The anode plate 8 is fixedly connected inside the assembly groove 5061.

[0038] Working principle: When in use, clamp the negative electrode clamp on the DC power supply 2 to the cathode connection end, clamp the positive electrode clamp on the DC power supply 2 to the anode connection end on the anode plate 8, then press the austenitic material sample to be measured on the round hole 602, then rotate the insulating block 506 so that the anode plate 8 is directly above the austenitic material sample to be measured, then press down the connecting rod 504 so that the bottom of the anode plate 8 tightly presses on the top of the austenitic material sample to be measured, then tighten the handle screw 503, and then start the circulating pump 7. The circulating pump 7 sprays the electrolyte at the lower end inside the insulating container 4 from the stainless steel nozzle 901 through the second connecting pipe 702 to the bottom of the austenitic material sample to be measured, so that a circuit is formed among the anode plate 8, the austenitic material sample to be measured, the stainless steel nozzle 901, the cathode plate 9 and the DC power supply 2, and electrolytic corrosion is carried out on the austenitic material sample to be measured.

[0039] Specifically, to ensure that the anode plate 8 can be in full contact with the austenitic material sample to be measured, the bottom of the anode plate 8 extends 1 mm - 10 mm beyond the bottom of the insulating block 506.

[0040] Specifically, a flanging 603 is provided at the edge of the insulating carrier plate 6. The flanging 603 presses on the top of the insulating container 4. To facilitate removing the insulating carrier plate 6 from the insulating container 4, an arc-shaped notch 401 is opened at the upper end of the outer wall of the insulating container 4.

[0041] Specifically, to facilitate the discharge of the electrolyte in the insulating container 4, a liquid discharge pipe 402 is connected to the bottom of the insulating container 4, and a liquid discharge valve 403 is installed on the liquid discharge pipe 402.

[0042] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and alterations made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An electrolytic corrosion device for metallographic inspection of austenitic materials, characterized in that, It includes a base (1). A DC power supply (2) used as the metallographic electrolytic corrosion power supply for austenitic materials and a bracket (3) are fixedly installed on the top of the base (1). An insulating container (4) for containing electrolyte is fixedly connected to the bracket (3). The top of the insulating container (4) is open, and an insulating bearing plate (6) is plugged into the top of the insulating container (4). A round hole (602) is formed in the middle of the insulating bearing plate (6), and the austenitic material sample to be tested is pressed on the round hole (602). A cathode plate (9). The cathode plate (9) is fixedly installed at the upper end inside the insulating container (4). One end of the cathode plate (9) extends out of the inside of the insulating container (4) as the cathode connection end. The negative electrode clip on the DC power supply (2) is electrically connected to the cathode connection end. An installation hole is formed in the middle of the cathode plate (9), and a stainless steel spray head (901) is fixedly connected inside the installation hole. The stainless steel spray head (901) is located directly below the round hole (602), and there is a gap between the top of the stainless steel spray head (901) and the bottom of the round hole (602). An anode plate (8). The anode plate (8) is arranged above the insulating bearing plate (6) through a limiting mechanism (5). The limiting mechanism (5) can press the anode plate (8) on the top of the austenitic material sample to be tested. The positive electrode clip on the DC power supply (2) is electrically connected to the anode connection end on the anode plate (8). A circulating pump (7). The circulating pump (7) is fixedly connected to the top of the base (1). The liquid inlet of the circulating pump (7) is communicated with the lower end inside the insulating container (4) through a first connecting pipe (701), and the liquid outlet of the circulating pump (7) is communicated with the lower end of the stainless steel spray head (901) through a second connecting pipe (702).

2. The electrolytic etching device for metallographic inspection of austenitic materials according to claim 1, characterized in that: The limiting mechanism (5) includes a sleeve (501). The sleeve (501) is fixedly connected to the top of the base (1). An adjusting rod (502) is slidably inserted into the upper end of the sleeve (501). A handle screw (503) for locking the adjusting rod (502) is installed at the upper end of the sleeve (501). A connecting rod (504) is fixedly connected to the top of the adjusting rod (502). A pressing rod (505) is fixedly connected to the bottom of the connecting rod (504) away from the adjusting rod (502). An insulating block (506) is fixedly connected to the bottom of the pressing rod (505). An assembly groove (5061) is formed in the bottom of the insulating block (506), and the anode plate (8) is fixedly connected inside the assembly groove (5061).

3. The electrolytic corrosion device for metallographic inspection of austenitic materials according to claim 2, characterized in that: The bottom of the anode plate (8) extends 1 mm - 10 mm beyond the bottom of the insulating block (506).

4. An electrolytic etching device for metallographic inspection of austenitic materials according to claim 3, characterized in that: A groove (601) is formed in the top of the insulating bearing plate (6), and the round hole (602) is located inside the groove (601).

5. An electrolytic etching device for metallographic inspection of austenitic materials according to claim 4, characterized in that: A flanging (603) is arranged at the edge of the insulating bearing plate (6), and the flanging (603) presses on the top of the insulating container (4).

6. An electrolytic corrosion device for metallographic inspection of austenitic materials according to claim 5, characterized in that: An arc-shaped notch (401) is provided at the upper end of the outer wall of the insulating container (4).

7. An electrolytic corrosion device for metallographic inspection of austenitic materials according to claim 1, characterized in that: A liquid discharge pipe (402) is connected to the bottom of the insulating container (4), and a liquid discharge valve (403) is installed on the liquid discharge pipe (402).

8. An electrolytic corrosion device for metallographic inspection of austenitic materials according to any one of claims 1-7, characterized in that: Anti-slip legs (101) are fixedly connected to the bottom of the base (1).

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