Testing device for high-temperature-resistant cathodic disbonding of coating

Abstract

The utility model discloses a testing device for high-temperature-resistant cathodic disbonding of a coating, which comprises a box body, the box body is a square cylindrical body, the box body is sequentially provided with an electrical cabin, a testing cabin and a storage cabin from top to bottom, the side surface of the box body is provided with a junction box, an electrical component is arranged in the electrical cabin, a plurality of groups of samples are arranged in the testing cabin, and the samples comprise test pieces. A plastic cylinder is arranged above the test piece, a cylinder cover is arranged above the plastic cylinder, an electrode and a liquid supplementing hole are arranged on the cylinder cover, and the electrode and the electrical assembly are respectively connected with a junction box. According to the utility model, time and test parameter setting are tested through the PLC, test parameters in the test process are monitored and recorded in real time, and after the test is finished, the test is automatically stopped and a prompt is sent out. An alarm can be given when any abnormity occurs in the test process, and whether the power supply is automatically cut off or not is selected according to the abnormity type, so that the safety in the test process is ensured. The test cabin can test multiple groups of samples at the same time, so that the detection time is saved, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the coating detection technical field especially, it relates to a kind of test devices for coating high-temperature cathodic disbonding. BACKGROUND

[0002] Currently, in coating quality detection project, there is coating high-temperature cathodic disbonding project parameter requirement. At present, laboratory often adopts the method specified in Appendix C of the "SY / T 0315-2013 Steel Pipeline Fusion Bonded Epoxy Powder Coating Technical Specification" to determine the high-temperature cathodic disbonding of coating, so as to test the quality of coating.

[0003] The above detection method has been used at home and abroad since the standard was promulgated. However, the method is complicated to operate. The test personnel need to manually create a coating leakage hole at the center of the test piece first, then align the center of the plastic cylinder with the artificial coating leakage hole and stick it with sealant, and then add the preheated solution into the cylinder. Insert the electrode into the solution and connect it with the positive pole of the direct current power supply. Connect the test piece with the negative pole. Apply voltage to the test piece (negative to the reference electrode). Perform the test under the specified test conditions. After the test is completed, test the cathodic disbonding resistance of the test piece according to the specified requirements to obtain the cathodic disbonding distance of the test piece. The above entire process has many operation links, complex steps, many interference factors, which can easily reduce the accuracy of the test results, and there is a great safety hazard. UTILITY MODEL CONTENTS

[0004] The utility model solves the problem of providing a test device for coating high-temperature cathodic disbonding, which is simple in structure, easy to operate, improves the accuracy of test results, and ensures the safety of the test process.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: a test device for coating high-temperature cathodic disbonding, comprising a box body, the box body is a square columnar body, a plurality of cavities are vertically arranged on the box body, the cavities are sequentially arranged from top to bottom as an electrical cabin and a test cabin, a junction box is arranged on the side surface of the box body, an electrical assembly is arranged in the electrical cabin, a plurality of test samples are arranged in the test cabin, the test sample comprises a test piece, a plastic cylinder is arranged above the test piece, a cylinder cover is arranged above the plastic cylinder, an electrode and a liquid supplementing hole are arranged on the cylinder cover, and the electrode and the electrical assembly are connected with the junction box respectively.

[0006] Further, the electrical assembly comprises a potential generator, a PLC, a circuit breaker and a contactor, the potential generator is arranged at one corner below the electrical cabin, the contactor is arranged above the same side of the potential generator, the PLC is arranged at another corner below the electrical cabin, the circuit breaker is arranged above the same side of the PLC, and the potential generator, the PLC, the circuit breaker and the contactor are connected through a circuit.

[0007] Further, the electrical cabin is externally provided with a touch screen and operation buttons in front, and the touch screen and the operation buttons are connected to the electrical components respectively.

[0008] Further, the operation buttons include three, from left to right, a running button, a stop button and an emergency stop button.

[0009] Further, the test cabin is provided with a cabin door in front, and is internally provided with a circulating air duct, and is internally provided with a temperature control probe on one side, and the temperature control probe monitors the temperature in the box.

[0010] Further, the electrode includes a reference electrode and a graphite anode.

[0011] Further, the terminal block is internally provided with a terminal post, one end of the terminal post is connected to the potential generator, and the other end of the terminal post is connected to the sample.

[0012] Further, the terminal post includes a reference electrode terminal post, a graphite anode terminal post and a working electrode terminal post.

[0013] Further, the test cabin is provided with a storage cabin below, and the storage cabin is provided with a cabin door in front.

[0014] Further, the box is provided with a Foma caster at the bottom.

[0015] The utility model has the advantages and positive effects that:

[0016] 1. The utility model sets up a test on time and test parameters by PLC, monitors and records the test parameters in real time during the test, and automatically stops the test and sends a reminder after the test is completed. Any abnormality during the test will alarm, and whether to automatically cut off the power supply is selected according to the type of abnormality, which ensures the safety during the test.

[0017] 2. The utility model is inserted into the solution, the electrode is connected to the positive pole of the direct current power supply, the sample is connected to the negative pole, and the connection with the reference electrode is also connected by the terminal post, which prevents poor contact and other situations, and improves the stability of the test.

[0018] 3. The utility model adopts the combination of touch screen and operation button, wherein the test program setting and test monitoring program adopt the touch screen form. Simple on, off, pause and other operations adopt the operation button form, the operation method is simple and convenient, and the test parameters are clear at a glance.

[0019] 4. The utility model can test multiple samples at the same time, save the detection time and improve the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the whole structure schematic diagram of the embodiment of the utility model.

[0021] Figure 2 is the structure schematic diagram of the sample after processing of the embodiment of the utility model.

[0022] Figure 3 is the layout schematic diagram of the electrical cabin of the embodiment of the utility model.

[0023] Figure 4 is the whole structure schematic diagram of the junction box of the embodiment of the utility model.

[0024] In the figure:

[0025] 1, electrical cabin;11, circuit breaker;12, PLC;13, contactor;14, potential generator;

[0026] 2, junction box;21, reference electrode terminal post;22, graphite anode terminal post;23, working electrode terminal post;

[0027] 3, sample;31, reference electrode;32, graphite anode;33, liquid supplement hole;34, cylinder cover;35, plastic cylinder;36, test piece;

[0028] 4, Foma castor;

[0029] 5, operation button;

[0030] 6, touch screen;

[0031] 7, circulating air duct;

[0032] 8, cabin door;

[0033] 9, test cabin;

[0034] 10, storage cabin. DETAILED DESCRIPTION

[0035] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0036] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] The utility model embodiment is further described below in combination with the drawings:

[0039] As Figure 1 The utility model discloses a kind of test devices for coating high-temperature cathode stripping, including box, box is square columnar body, multiple cavities are vertically provided in box, multiple cavities are in order from top to bottom electric cabin 1, test cabin 9 and storage cabin 10, box side surface is equipped with terminal box 2.Electric cabin 1 is equipped with electrical assembly, and multiple groups of test sample 3 are equipped in test cabin 9. As Figure 2 Test sample 3 includes test piece 36, plastic cylinder 35 is equipped above test piece 36, cylinder cover 34 is equipped above plastic cylinder 35, electrode and liquid supplementing hole 33 are equipped on cylinder cover 34, and liquid supplementing hole 33 is used to add test solution. Preferably, electrode includes reference electrode 31 and graphite anode 32, reference electrode 31 and graphite anode 32 are placed in two holes, and electrode and electrical assembly are connected with terminal box 2 respectively.

[0040] Specifically, electrical assembly includes potential generator 14, PLC 12, circuit breaker 11 and contactor 13.Potential generator 14 can output voltage and as power supply.PLC 12 is internally integrated with intermediate relay and solid-state relay, for setting test temperature, voltage (relative to reference electrode 31) and other parameters, and any abnormality during test process will be alarmed.Circuit breaker 11 selects whether to automatically cut off power supply according to abnormal type, to ensure the safety during test process. Figure 3As shown, the potential generator 14 is placed at a corner below the electrical cabin 1, the contactor 13 is placed above the potential generator 14 on the same side, the PLC 12 is placed at another corner below the electrical cabin 1, and the circuit breaker 11 is placed above the PLC 12 on the same side. The potential generator 14, the PLC 12, the circuit breaker 11 and the contactor 13 are connected through circuits.

[0041] Preferably, the front of the electrical cabin 1 is provided with a touch screen 6 and operation buttons 5, and the touch screen 6 and the operation buttons 5 are connected to electrical components. The operation buttons 5 include three, from left to right, running button, stop button and emergency stop button. The touch screen 6 is connected to the circuit of the electrical cabin 1, and can monitor test parameters and other information in real time. The operation buttons 5 can control the running, stopping and emergency stopping of the test.

[0042] As shown in the drawings, Figure 1 The test cabin 9 is provided with a cabin door 8 at the front, and a circulating air duct 7 is arranged in the test cabin 9 for circulating exhaust air of the box. A temperature control probe is arranged on one side of the test cabin 9, which monitors the temperature in the box. The treated test sample 3 is placed in the test cabin 9 for testing. Preferably, multiple test samples 3 can be tested at the same time, which saves testing time and improves testing efficiency.

[0043] As shown in the drawings, Figure 4 The wiring box 2 is provided with wiring posts, which include a reference electrode wiring post 21, a graphite anode wiring post 22 and a working electrode wiring post 23. One end of the wiring post is connected to the potential generator 14, and the other end of the wiring post is connected to the test piece 36.

[0044] As shown in the drawings, Figure 1 The storage cabin 10 is provided with a cabin door 8 at the front, and the inside of the storage cabin 10 can store objects. The bottom of the box is provided with a Foma caster 4, which facilitates the movement of the testing device.

[0045] The working principle of the utility model is as follows:

[0046] The test device for coating high-temperature-resistant cathode peeling is used. The treated test sample 3 is placed in the test cabin 9. The test solution is added to the plastic cylinder 35 from the liquid supplementing hole 33 on the cylinder cover 34. The reference electrode 31 is inserted into the cylinder cover 34, and the other end of the reference electrode 31 is connected to the reference electrode wiring post 21 in the wiring box 2. The graphite anode 32 is inserted into the cylinder cover 34, and the other end of the graphite anode 32 is connected to the graphite anode wiring post 22 in the wiring box 2. The test piece 36 is connected to the working electrode wiring post 23 in the wiring box 2 by wires. The cabin door 8 is closed. The test parameters are set on the touch screen 6, and the operation button 5 is clicked to start the test. The operation is simple and convenient, which saves testing time, improves testing efficiency, and improves the stability and safety of the test.

[0047] The utility model has the advantages and positive effects that:

[0048] 1. The utility model discloses a test to time and test parameter setting through PLC, and the test parameter in test process is monitored and recorded in real time, and the test is stopped automatically and sends out the reminder after the test, any abnormality in the test process will make the alarm, and according to the abnormal type, whether automatic power-off is selected, the safety in the test process is guaranteed.

[0049] 2. The utility model discloses the connection of electrode and direct current source anode, sample and negative pole and the reference electrode all adopt the connecting mode of binding post, prevent the situation such as bad contact from happening, improve the stability of test.

[0050] 3. The utility model discloses the mode that touch -sensitive screen and operating button are combined, wherein, the setting of test procedure and test monitoring procedure all adopt touch -sensitive screen form. Simple on, off, pause etc. operation all adopt the form of operating button, and the operation method is simple and convenient, and test parameter is self-evident.

[0051] 4. The utility model discloses can carry out the test of multiple sets of sample simultaneously, save the detection time, improve the detection efficiency.

[0052] The above embodiment of the utility model has been explained in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered for limiting the implementation scope of the utility model. All equivalent changes and improvements made in the application scope of the utility model should still belong to the patent coverage scope of the utility model.

Claims

1. A test device for high temperature resistant cathodic disbonding of coatings, characterized by: It includes a box body, which is a square columnar body. The box body is vertically provided with multiple cavities. The multiple cavities are an electrical compartment and a test compartment from top to bottom. A junction box is provided on the side of the box body. Electrical components are provided in the electrical compartment. Multiple groups of samples are provided in the test compartment. The samples include test pieces. A plastic cylinder is provided above the test piece. A cylinder cover is provided above the plastic cylinder. Electrodes and a fluid infusion hole are provided on the cylinder cover. The electrodes and the electrical components are respectively connected to the junction box.

2. The device for testing high-temperature-resistant cathodic disbonding of a coating according to claim 1, characterized in that: The electrical components include a potential generator, a PLC, a circuit breaker and a contactor. The potential generator is placed at a corner below the electrical compartment, the contactor is placed above the same side of the potential generator, the PLC is placed at another corner below the electrical compartment, and the circuit breaker is placed above the same side of the PLC. The potential generator, the PLC, the circuit breaker and the contactor are all connected through a circuit.

3. A coating high temperature resistant cathodic disbonding testing device according to claim 1 or 2, characterized in that: A touch screen and operation buttons are provided on the front of the exterior of the electrical compartment, and the touch screen and the operation buttons are connected to the electrical components respectively.

4. The device for testing high-temperature-resistant cathodic disbonding of a coating according to claim 3, characterized in that: The operation buttons include three, which are a run button, a stop button and an emergency stop button from left to right.

5. A coating high temperature resistant cathodic disbonding testing device according to claim 1 or 2, characterized in that: A door is provided in front of the test chamber, a circulating air duct is provided inside the test chamber, and a temperature control probe is provided on one side of the test chamber to monitor the temperature inside the chamber.

6. A coating high temperature resistant cathodic disbonding testing device according to claim 1 or 2, characterized in that: The electrodes include a reference electrode and a graphite anode.

7. The device for testing high-temperature-resistant cathodic disbonding of a coating according to claim 2, characterized in that: A terminal is provided in the junction box, one end of the terminal is connected to the potential generator, and the other end of the terminal is connected to the sample.

8. The device for testing high-temperature-resistant cathodic disbonding of a coating according to claim 7, characterized in that: The binding posts include a reference electrode binding post, a graphite anode binding post and a working electrode binding post.

9. A coating high temperature resistant cathodic disbonding testing device according to claim 1 or 2, characterized in that: A storage compartment is provided below the test compartment, and a door is provided in front of the storage compartment.

10. A coating high temperature resistant cathodic disbonding testing device according to claim 1 or 2, characterized in that: The bottom of the box is provided with Forma casters.

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