Metal material corrosion resistance detection device

Abstract

The utility model relates to the technical field of metal material detection, in particular to a metal material corrosion resistance detection device which comprises a test box, the test box is provided with a containing space, the top of the test box is provided with an opening, a plurality of groups of transverse rods are horizontally arranged in the test box in parallel, and each group comprises two transverse rods; a first placing frame and a second placing frame for placing metal materials with different specifications are arranged on each group of cross rods, an electric push rod is mounted on the test box, a piston rod of the electric push rod is rotatably connected with a Z-shaped frame, one end, far away from the piston rod of the electric push rod, of the Z-shaped frame is rotatably connected with a turntable, and the Z-shaped frame is connected with the eccentric part of the turntable; the rotating disc is arranged at the bottom of the first containing frame and used for driving the metal objects in the first containing frame to rotate. Through periodic movement of the electric push rod, the Z-shaped frame and the rotating disc are driven to move so as to enable the sample in the first placing frame to rotate, so that each surface of the sample can be uniformly corroded and exposed, and comprehensive anti-corrosion detection of the sample is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal material detection technical field, concretely relates to a metal material corrosion resistance detection device. BACKGROUND

[0002] Metal materials play a key role in various industrial applications, especially in the fields of marine engineering, chemical industry, power, transportation, etc. However, metal materials are prone to corrosion under certain environmental conditions, which not only affects their mechanical properties and service life, but also can lead to serious safety accidents. Therefore, evaluating the corrosion resistance of metal materials is crucial to ensure structural safety and extend equipment life.

[0003] Traditional corrosion resistance detection methods usually rely on static immersion tests in the laboratory or outdoor exposure tests, but these methods have many limitations: on the one hand, they are difficult to simulate the complex corrosion conditions in actual use environment; on the other hand, the test period is long, the efficiency is low, and real-time data feedback cannot be provided.

[0004] With the development of technology, people began to seek more efficient and accurate detection means to evaluate the corrosion resistance of metal materials. Salt spray test as a classic accelerated corrosion test method is widely used in the evaluation of corrosion resistance of metal materials and their coatings. It can quickly reveal the corrosion behavior of materials under harsh conditions by simulating the effect of salt-containing air (such as marine environment) on the surface of metals. However, the existing detection device adopts a relatively single fixing method for the sample, which results in the fact that some samples cannot be fully exposed to the salt spray environment, thereby affecting the reliability of the detection results.

[0005] Therefore, it is necessary to design a metal material corrosion resistance detection device that can fully expose the sample to the salt spray environment, so as to realize the corrosion resistance detection of the sample metal. SUMMARY

[0006] The technical implementation scheme of the utility model is: a metal material corrosion resistance detection device, comprising a test box, the test box is provided with a containing space and an open top, a top cover is rotatably connected to the top of the test box for blocking the top opening of the test box, a plurality of groups of horizontal rods are arranged horizontally and side by side in the test box, and the number of rods in each group is two, a first placing frame and a second placing frame for placing metal materials of different specifications are arranged on each group of horizontal rods, an electric push rod is installed on the test box, a piston rod of the electric push rod is rotatably connected with a Z-shaped frame, one end of the Z-shaped frame away from the piston rod of the electric push rod is rotatably connected with a turntable, the eccentric part of the Z-shaped frame and the turntable is connected, the turntable is arranged at the bottom of the first placing frame, and the turntable is used to drive the metal object in the first placing frame to rotate.

[0007] Further, the first placing frame and the second placing frame are rotationally provided with a disc, a cross-shaped sliding groove is formed in the disc, a clamping plate is slidingly arranged in the sliding groove, an elastic member is arranged between the clamping plate and the groove wall of the sliding groove, the elastic member is used for driving the two opposite clamping plates to be close to each other, and the rotating disc is connected with the disc in the first placing frame.

[0008] Further, the test box is provided with a salt mist storage tank, a plurality of salt mist spray pipes are communicated with the salt mist storage tank, and the salt mist spray pipes are used for upwardly spraying the salt mist in the salt mist storage tank.

[0009] Further, the second placing frame is provided with a clamping plate on the longitudinal inner wall.

[0010] Further, the end of the salt mist spray pipe is provided with a spray head or a baffle for blocking the salt mist.

[0011] Further, the inside bottom of the test box is provided with a ventilation pipe, the ventilation pipe is used for strengthening the gas circulation in the test box, a blower is mounted on the outer wall of the test box, and the blower is used for inputting the gas into the ventilation pipe.

[0012] Further, the top cover is transparent and made of a corrosion-resistant material.

[0013] The utility model discloses the beneficial effect has: 1, through the periodic motion of electric push rod, and then drive Z shape frame and rotating disc motion to make the sample in the first placing frame rotate, and this ensures that every face of sample can be exposed to uniform corrosion, and this reaches the overall anticorrosion detection of sample.

[0014] 2, the disc design in the first placing frame and the second placing frame allows the safe fixing of different specifications of metal samples through the cooperation of the clamping plate and the elastic member, and for larger or special-shaped samples, the clamping plate can also be used for additional support, to ensure that all samples remain stable during the test and are not displaced due to vibration or other external forces.

[0015] 3, the ventilation pipe and the blower system arranged at the bottom of the test box help to strengthen the gas circulation in the box, promote the effective contact between the salt mist and the surface of the sample, and maintain the stability of the test environment to prevent abnormal corrosion caused by excessive local concentration. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is a top view of the test box of the utility model.

[0018] Figure 3 It is a three-dimensional structure schematic view of the utility model cross rod, disc, clamping plate and elastic member.

[0019] Figure 4 It is a perspective structural schematic view of the horizontal rod, the disc, the electric push rod and the Z-shaped frame of the utility model.

[0020] Figure 5 It is a top view of the second placing frame of the utility model.

[0021] In the above drawing: 1_test box, 2_salt mist storage, 3_salt mist spray pipe, 31_nozzle, 4_ventilation pipe, 5_fan, 6_horizontal rod, 61_first placing frame, 7_second placing frame, 8_disc, 9_clamp plate, 10_elastic member, 11_electric push rod, 12_Z-shaped frame, 121_turntable, 13_clamp plate, 14_top cover, 15_baffle. DETAILED DESCRIPTION

[0022] The utility model will be specifically described below in combination with the drawings.

[0023] Embodiment: a kind of metal material corrosion resistance detection device, as shown in Figures 1-5 It is shown that there is test box 1, test box 1 is set to the top opening with containing space, test box 1 top is rotationally connected with the top cover 14 for the top opening of test box 1 is blocked, top cover 14 is transparent and anticorrosive material, so as to observe the corrosion condition of metal material inside test box 1 in real time;Two groups of horizontal rods 6 are horizontally arranged in test box 1, each group of horizontal rods 6 is composed of two parallel horizontal rods, each group of horizontal rods 6 is provided with first placing frame 61 and second placing frame 7 for placing different specifications of metal materials, first placing frame 61 is arranged at the both sides of horizontal rod 6, second placing frame 7 is arranged at the middle part of horizontal rod 6, electric push rod 11 is installed on the left and right sides of test box 1, the piston rod of electric push rod 11 is rotationally connected with Z-shaped frame 12, the end of Z-shaped frame 12 away from the piston rod of electric push rod 11 is rotationally connected with turntable 121, Z-shaped frame 12 and turntable 121 are connected at the eccentric position, turntable 121 is arranged at the bottom of first placing frame 61, turntable 121 is used to drive the rotating motion of metal articles in first placing frame 61, by the periodic reciprocating motion of the piston rod of electric push rod 11, so as to drive the periodic rotating motion of metal articles in first placing frame 61, so that metal articles in first placing frame 61 can be fully exposed to salt mist environment, so as to obtain reliable corrosion resistance detection data.

[0024] As shown in Figure 3 And Figure 5As shown, the first placing frame 61 and the second placing frame 7 are both rotationally provided with a disc 8, the disc 8 is provided with a cross-shaped sliding slot, the sliding slot is slidably provided with a clamping plate 9, the clamping plate 9 and the slot wall of the sliding slot are provided with an elastic element 10, the elastic element 10 is used for driving the two opposite clamping plates 9 to approach each other, the rotating disc 121 is connected with the disc 8 in the first placing frame 61, the second placing frame 7 is provided with a clamping plate 13 on the longitudinal inner wall, the metal object placed longitudinally in the second placing frame 7 can be clamped into the clamping plate 13, so as to limit the metal object placed longitudinally, and the metal object placed transversely in the second placing frame 7 can also be limited, specifically, the metal object is placed between the two symmetrical clamping plates 13, and the two ends of the metal object are placed in the clamping groove of the clamping plate 13, so as to limit the strip-shaped metal object.

[0025] As shown in Figure 2 , the test box 1 is provided with a salt mist storage 2 at the bottom, the salt mist storage 2 is provided with a conversion device for heating and evaporating or ultrasonic atomizing the salt solution to convert it into fine salt mist particles, the salt mist storage 2 is communicated with a plurality of salt mist spray pipes 3, the salt mist converted into salt mist particles in the salt mist storage 2 is sprayed upward through the salt mist spray pipe, so as to form a salt mist environment in the test box 1, the end of the salt mist spray pipe 3 is provided with a spray head 31 or a baffle 15 for blocking the salt mist, the height of the salt mist spray can be adjusted by sliding the height of the baffle 15 up and down.

[0026] As shown in Figure 1 and Figure 2 , the test box 1 is provided with a ventilation pipe 4 at the bottom of the inside, the ventilation pipe 4 is used to strengthen the gas circulation in the test box 1, the test box 1 is provided with a blower 5 on the outer wall, the blower 5 is used to input gas into the ventilation pipe 4, the blower 5 sends the gas into the ventilation pipe 4 and finally into the test box 1, thereby strengthening the air circulation in the test box 1, so as to keep the test environment in the test box 1 stable, thereby preventing abnormal corrosion caused by excessive local concentration.

[0027] Before starting the test, the operator places different specifications of metal materials to be tested in the first and second placement frames 61 and 7, and the clamps 9 are driven to approach each other by the elastic members 10 to fix the metal samples on the discs 8, ensuring that they will not shift during the test; for larger or specially shaped samples, they can be placed on the discs 8 in the second placement frame 7 or between the symmetrically placed clamps 13, thereby fixing the metal objects; then, all the placement frames with samples are installed on the crossbar 6, and the top cover 14 of the top opening of the test box 1 is closed to ensure the airtightness of the test environment. At this time, a relatively isolated space is formed inside the test box 1 for simulating a specific corrosion environment. During the test, the salt water solution in the salt mist storage 2 is converted into fine salt mist particles by heating evaporation or ultrasonic atomization, and these salt mist particles are uniformly sprayed upwards into the interior space of the test box 1 through the multiple salt mist spray pipes 3, covering the surfaces of the metal samples, and the salt mist is fully dispersed and uniformly distributed in the entire test area through the spray heads 31; for some samples that need to be exposed to the salt mist environment in all directions, especially those with complex geometric shapes or surface treatments, the electric push rod 11 will act periodically to rotate the turntable 121 through the Z-shaped frame 12, ensuring that each face can be uniformly corroded and exposed, so as to evaluate the overall corrosion resistance of the sample. In order to maintain air circulation in the test box 1 and promote effective contact between the salt mist and the sample surface, the air blower 5 continuously inputs fresh air into the test box 1 through the ventilation pipe 4, thereby helping to maintain the stability of the test environment and preventing abnormal corrosion phenomena caused by excessive local concentration. The above-mentioned method realizes comprehensive corrosion resistance detection of the surface of the metal material.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A device for detecting corrosion resistance of metal material, comprising a test box (1) provided with a containing space and an open top, a top cover (14) being rotatably connected to the top of the test box (1) for sealing the open top of the test box (1), characterized in that: A plurality of groups of cross rods (6) are horizontally arranged in parallel in the test box (1), and the number of cross rods (6) in each group is two, and each group of cross rods (6) is provided with a first placing frame (61) and a second placing frame (7) for placing metal materials of different specifications, and the test box (1) is provided with an electric push rod (11), and the piston rod of the electric push rod (11) is rotatably connected with a Z-shaped frame (12), and the Z-shaped frame (12) is rotatably connected with a rotating disc (121) at one end away from the piston rod of the electric push rod (11), and the eccentric part of the Z-shaped frame (12) is connected with the rotating disc (121), and the rotating disc (121) is arranged at the bottom of the first placing frame (61), and the rotating disc (121) is used for driving the metal object in the first placing frame (61) to rotate.

2. A device for detecting corrosion resistance of a metal material according to claim 1, characterized in that: The first placing frame (61) and the second placing frame (7) are both rotatably provided with a disc (8), the disc (8) is provided with a cross-shaped sliding groove, the sliding groove is slidably provided with a clamping plate (9), and the clamping plate (9) and the groove wall of the sliding groove are provided with an elastic element (10), the elastic element (10) is used for driving two opposite clamping plates (9) to move close to each other, and the rotating disc (121) is connected with the disc (8) in the first placing frame (61).

3. A device for detecting corrosion resistance of a metal material according to claim 2, characterized in that: The bottom of the test box (1) is provided with a salt mist storage device (2), and the salt mist storage device (2) is communicated with a plurality of salt mist spray pipes (3), and the salt mist spray pipes (3) are used for spraying the salt mist in the salt mist storage device (2) upward.

4. A device for detecting corrosion resistance of a metal material according to claim 3, characterized in that: The longitudinal inner wall of the second placing frame (7) is symmetrically provided with a clamping plate (13).

5. A device for detecting corrosion resistance of a metal material according to claim 4, characterized in that: The end of the salt mist spray pipe (3) is provided with a spray head (31) or a baffle (15) for blocking the salt mist.

6. A device for detecting corrosion resistance of a metal material according to claim 5, characterized in that: The inside bottom of the test box (1) is provided with a ventilation pipe (4), the ventilation pipe (4) is used for enhancing the gas circulation in the test box (1), and the outer wall of the test box (1) is provided with a blower (5), and the blower (5) is used for inputting gas into the ventilation pipe (4).

7. A device for detecting corrosion resistance of a metal material according to claim 6, characterized in that: The top cover (14) is transparent and made of corrosion-resistant material.

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