Corrosion resistance testing device for copper alloy

Abstract

The utility model relates to the technical field of material corrosion resistance testing, in particular to a copper alloy corrosion resistance testing device which comprises a box body, a cover plate is detachably arranged on the top of the box body, square sliding grooves are symmetrically formed in the left side and the right side of the bottom of the cover plate, a connecting plate is arranged between the lower portions of two L-shaped frames, and hanging frames are arranged on the left side and the right side of the connecting plate. A placing screen frame is arranged between the two hanging frames, and the two L-shaped frames are erected on the side wall of the box body. The device can realize full contact between the copper alloy and the test liquid. The copper alloy is placed in the placing screen frame, a closed space is formed by means of the L-shaped frame, the U-shaped sliding frame, the clamping plate, the cover plate and other components, it is ensured that test liquid cannot leak out, and meanwhile the copper alloy in the placing screen frame can be completely soaked in the test liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of material corrosion resistance testing, in particular to a copper alloy corrosion resistance testing device. Background Art

[0002] Traditional copper alloy passivation technology faces two major challenges: inorganic salt passivation technology is limited due to its environmental unfriendliness, while organic corrosion inhibitor passivation technology is limited in application because its anti-corrosion effect fails to reach the ideal level. These problems have largely hindered the widespread application of these technologies in copper alloy production. In contrast, the electrochemical copper surface passivation process has shown significant advantages. This process is not only simple to operate, but also harmless to the environment. It can form a dense passivation layer in a relatively short period of time, significantly improving the corrosion resistance of copper alloys. This process effectively solves key issues such as environmental protection and passivation layer density during the passivation process of copper alloys, thus forming a simple and efficient electrochemical passivation process for copper alloys. Current research shows that the use of electrochemical methods for surface passivation of copper alloys has good corrosion resistance. Its corrosion behavior and passivation mechanism are unclear.

[0003] While using the electrochemical passivation process to prepare corrosion-resistant copper alloys, we also conducted in-depth research on the microstructure of the electrochemical passivation layer and the element analysis of the surface of the copper alloy after passivation, aiming to reveal the electrochemical passivation film formation mechanism and corrosion resistance mechanism. The copper alloys after electrochemical passivation treatment were tested for corrosion resistance under alkaline solution, salt spray, and salt water conditions.

[0004] Since the copper alloy corrosion resistance test has complex requirements for the corrosion environment and sealing devices, it is not applicable in many test scenarios and cannot meet the test requirements with high data integrity. It is generally carried out in the laboratory and cannot be carried out at the production site. Therefore, a copper alloy corrosion resistance test device with a simple structure and easy operation is needed, which is also easy to implement outside the laboratory. Utility Model Content

[0005] In order to overcome the shortcomings of copper alloy corrosion resistance testing, which has complex requirements for corrosion environment and sealing devices, is not applicable in many test scenarios and is difficult to meet the testing requirements with high data integrity, the technical problem to be solved is: to provide a copper alloy corrosion resistance testing device with a simple structure and easy operation.

[0006] The technical solution of the utility model is: a copper alloy corrosion resistance testing device, including a box body, a cover plate, an L-shaped frame, a connecting plate, a hanging rack, a placement net frame and a shaking component, a water outlet pipe is provided at the lower part of the box body, a cover plate is detachably provided on the top of the box body, square slide grooves are symmetrically opened on the left and right sides of the bottom of the cover plate, a connecting plate is provided between the lower parts of the two L-shaped frames, hanging racks are provided on the left and right sides of the connecting plate, a placement net frame is provided between the two hanging racks, the two L-shaped frames are mounted on the side walls of the box body, the placement net frame is located in the box body, the L-shaped frame and the square slide groove of the cover plate are slidably matched, and a shaking component that can drive the L-shaped frame to move is provided on the upper part of the side wall of the box body, and the shaking component is used to drive the placement net frame to move back and forth in the box body to fully contact with the corrosion test liquid.

[0007] As an optimal technical solution of the present invention, the shaking assembly includes a card plate, a mounting seat, a sliding rod, a U-shaped slide, a first elastic member, a mounting frame, a motor and a toggle wheel. A card plate is provided at the bottom of the L-shaped frame, mounting seats are symmetrically provided on the left and right outer walls of the box body, sliding rods are symmetrically provided on the mounting seats, and U-shaped slides are slidingly provided on the slide rods on the same side. The card plate is clamped with the U-shaped slide, and a first elastic member is provided between the U-shaped slide and the adjacent mounting seat. A mounting frame is provided on the mounting seat on one side, and a motor is provided on the mounting frame. A toggle wheel is provided on the output shaft of the motor, and the toggle wheel is in contact with and cooperates with the adjacent U-shaped slide.

[0008] As an optimal technical solution of the utility model, it also includes a support frame and a feeding hopper. The support frame is arranged on the top of the cover plate, and the feeding hopper is arranged on the support frame.

[0009] As an optimal technical solution of the present invention, it also includes a second elastic member, a placement plate and a limit block. Multiple second elastic members are arranged at the bottom of the box body, a placement plate is arranged between the tops of the second elastic members, and multiple limit blocks are arranged on the tops of the placement plate.

[0010] As a preferred technical solution of the present invention, a handle is also included, and the handle is symmetrically arranged on the top of the cover.

[0011] As a preferred technical solution of the present invention, the second elastic member is a stainless steel spring, which can resist corrosion from weak corrosive media such as air, steam, and water, as well as chemically corrosive media such as acids, alkalis, and salts.

[0012] The present invention has the following advantages: 1. The device can achieve full contact between the copper alloy and the test liquid. By placing the copper alloy in a placement frame and forming a closed space with the help of components such as an L-shaped frame, a U-shaped slide, a card plate, and a cover plate, it is ensured that the test liquid will not leak out, and the copper alloy in the placement frame can be completely immersed in the test liquid. In addition, the motor drives the U-shaped slide and the L-shaped frame to move via a toggle wheel, thereby moving the placement frame back and forth in the test liquid. This design not only improves the uniformity of the test, but also ensures that all parts of the copper alloy are in full contact with the test liquid, thereby improving the accuracy and reliability of the test.

[0013] 2. This device is highly flexible and convenient in both design and use. During the test, if the concentration or amount of the test liquid needs to be adjusted, simply open the hopper valve on the support frame to easily add it without interrupting the test process, greatly improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a partial three-dimensional structural diagram of the utility model.

[0016] Figure 3 This is a schematic diagram of the installation structure of the shaking component of the utility model.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the shaking component of the utility model.

[0018] Figure 5 This is a schematic diagram of the installation structure of the elastic member, placement plate and limit block of the utility model.

[0019] Marked in the figure: 1-box, 2-cover, 3-L-shaped frame, 4-connecting plate, 5-hanging rack, 6-screen frame placement, 7-shaking assembly, 71-clip plate, 72-mounting seat, 73-slide rod, 74-U-shaped slide, 75-first elastic member, 76-mounting frame, 77-motor, 78-toggle wheel, 8-support frame, 9-feeding hopper, 10-second elastic member, 11-placement plate, 12-limiting block, 13-handle. DETAILED DESCRIPTION

[0020] The following further illustrates the technical solution with reference to specific embodiments. It should be noted that terms such as "up," "down," "left," and "right" used herein to indicate directions refer only to the positions of the structures depicted in the corresponding drawings. Component numbers, such as "first" and "second," are used solely to distinguish the components being described and do not convey any sequential or technical meaning. References to "connected" and "coupled" in this application, unless otherwise specified, include both direct and indirect connections (couplings).

[0021] Embodiment: A copper alloy corrosion resistance testing device, such as Figure 1-5 As shown, it includes a box body 1, a cover plate 2, an L-shaped frame 3, a connecting plate 4, a hanging rack 5, a placement net frame 6, a shaking assembly 7, a support frame 8, a hopper 9, a second elastic member 10, a placement plate 11, a limit block 12 and a handle 13. A water outlet pipe is provided at the lower part of the box body 1, and a cover plate 2 is detachably provided on the top of the box body 1. Square slides are symmetrically opened on the left and right sides of the bottom of the cover plate 2. A support frame 8 is provided on the top of the cover plate 2. A hopper 9 is provided on the support frame 8. Four second elastic members 10 are provided at the bottom of the box body 1. The second elastic members 10 are rectangular. 10 is a stainless steel spring, which can resist corrosion from weak corrosive media such as air, steam, and water, as well as chemically corrosive media such as acids, alkalis, and salts. A placement plate 11 is provided between the tops of the second elastic member 10. A square hole is provided in the middle of the placement plate 11. A plurality of limit blocks 12 are provided on the top of the placement plate 11. Both the placement plate 11 and the limit blocks 12 are made of stainless steel and are corrosion-resistant. Handles 13 are symmetrically provided on the top of the cover plate 2 to facilitate removal of the cover plate 2. A connecting plate 4 is provided between the lower parts of the two L-shaped frames 3. Hanging brackets 5 are provided on the left and right sides of the connecting plate 4. Two hanging brackets A screen frame 6 is provided between the frames 5. Two L-shaped frames 3 are mounted on the side walls of the box body 1. The screen frame 6 is located inside the box body 1. The L-shaped frame 3 slides with the square slide groove of the cover plate 2. A shaking assembly 7 is provided on the upper side wall of the box body 1 to drive the L-shaped frame 3 to move. The shaking assembly 7 is used to drive the screen frame 6 to move back and forth in the box body 1 to fully contact the corrosion test liquid. The shaking assembly 7 includes a card plate 71, a mounting seat 72, a slide rod 73, a U-shaped slide 74, a first elastic member 75, a mounting frame 76, a motor 77 and a toggle wheel 78. The bottom of the L-shaped frame 3 is A card plate 71 is provided, and mounting seats 72 are symmetrically provided on the left and right outer walls of the box body 1 through bolt connection. Slide rods 73 are symmetrically provided on the mounting seats 72, and U-shaped slides 74 are slidably provided on the slide rods 73 on the same side. The card plate 71 is clamped with the U-shaped slide 74, and a first elastic member 75 is provided between the U-shaped slide 74 and the adjacent mounting seat 72. A mounting frame 76 is provided on the mounting seat 72 on one side, and a motor 77 is provided on the mounting frame 76. A toggle wheel 78 is provided on the output shaft of the motor 77, and the toggle wheel 78 is in contact with the adjacent U-shaped slide 74.

[0022] When a corrosion resistance test is required, the staff puts alkaline solution, salt spray or salt water into the box 1 according to the required test data, and then puts the copper alloy to be tested into the placement frame 6, and then sets up the L-shaped frame 3 on the side wall of the box 1. At this time, the placement frame 6 is located on the placement plate 11, the second elastic member 10 plays a buffering role, and the limit block 12 plays a limiting role on the bottom of the placement frame 6. The card plate 71 is clamped on the inner side of the U-shaped slide 74, and then engaged through the square slide groove of the cover plate 2 to form a closed space. At this time, the copper alloy placed in the screen frame 6 is immersed in and in contact with the corrosion resistance test liquid. By starting the motor 77, the motor 77 drives the toggle wheel 78 to rotate. When the raised part of the toggle wheel 78 squeezes the U-shaped slide 74, the U-shaped slide 74 drives the card plate 71 and the L-shaped frame 3 to move. At this time, the first elastic member 75 connected to the U-shaped slide 74 is compressed, and the L-shaped frame 3 drives the screen frame 6 to move through the connecting plate 4 and the hanging bracket 5. The first elastic member 75 on the other side is stretched, and the second elastic member 10 also swings accordingly. When the raised part of the toggle wheel 78 rotates to the point where it does not squeeze the U-shaped slide 74, the first elastic member 75 is reset to drive the L-shaped frame 3 and the placement screen frame 6 to reset. The motor 77 drives the toggle wheel 78 to work and can continuously drive the placement screen frame 6 to move back and forth, thereby achieving full immersion and contact of the copper alloy in the placement screen frame 6 with the corrosion resistance test liquid. When the concentration or amount of the corrosion resistance test liquid needs to be adjusted during the test, the valve of the hopper 9 on the support frame 8 can be opened to add it. The device has a simple structure and is easy to operate and experiment.

[0023] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A copper alloy corrosion resistance testing device, characterized by: The invention comprises a box body (1), wherein a cover plate (2) is detachably provided on the top of the box body (1), square slide grooves are symmetrically provided on the left and right sides of the bottom of the cover plate (2), a connecting plate (4) is provided between the lower parts of the two L-shaped frames (3), hanging racks (5) are provided on the left and right sides of the connecting plate (4), a placement net frame (6) is provided between the two hanging racks (5), the two L-shaped frames (3) are mounted on the side walls of the box body (1), the placement net frame (6) is located in the box body (1), the L-shaped frame (3) and the square slide groove of the cover plate (2) are slidably matched, and a shaking component (7) capable of driving the L-shaped frame (3) to move is provided on the upper part of the side wall of the box body (1), and the shaking component (7) is used to drive the placement net frame (6) to move back and forth in the box body (1) to fully contact with the corrosion test liquid.

2. A copper alloy corrosion resistance testing device according to claim 1, characterized in that: The shaking assembly (7) includes a card plate (71), the bottom of the L-shaped frame (3) is provided with the card plate (71), the outer wall of the box body (1) is symmetrically provided with a mounting seat (72), the mounting seat (72) is symmetrically provided with a slide rod (73), the slide rod (73) on the same side is slidably provided with a U-shaped slide (74), the card plate (71) is clamped with the U-shaped slide (74), a first elastic member (75) is provided between the U-shaped slide (74) and the adjacent mounting seat (72), a mounting frame (76) is provided on the mounting seat (72) on one side, a motor (77) is provided on the mounting frame (76), a toggle wheel (78) is provided on the output shaft of the motor (77), and the toggle wheel (78) is in contact with the adjacent U-shaped slide (74).

3. A copper alloy corrosion resistance testing device according to claim 2, characterized in that: It also includes a support frame (8), the support frame (8) is arranged on the top of the cover plate (2), and a feeding hopper (9) is arranged on the support frame (8).

4. A copper alloy corrosion resistance testing device according to claim 3, characterized in that: It also includes a second elastic member (10), a plurality of the second elastic members (10) are arranged at the bottom of the box body (1), a placement plate (11) is arranged between the tops of the second elastic members (10), and a plurality of limit blocks (12) are arranged on the tops of the placement plates (11).

5. A copper alloy corrosion resistance testing device according to claim 4, characterized in that: It also includes a handle (13), and the handle (13) is symmetrically arranged on the top of the cover plate (2).

6. A copper alloy corrosion resistance testing device according to claim 5, characterized in that: The second elastic member (10) is a stainless steel spring.

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