Electrodeposition tank of large-area beta radioactive source

Abstract

The utility model discloses an electro-deposition tank for a large-area beta radioactive source. The electro-deposition tank comprises a deposition tank fixing frame, a pressure bracket and a tank body, electro-deposition liquid is contained in the tank body, a first through hole allowing the anode wire to penetrate through and go deep into the electro-deposition liquid is formed in the top of the tank body, a lower opening is formed in the bottom of the tank body, and a gasket is arranged at the lower opening; the deposition tank fixing frame comprises a cathode base and a door-shaped frame erected on the cathode base, a groove matched with the tank body is formed in the cathode base, an electro-deposition source sheet is placed in the groove, the lower end of the tank body is placed in the groove, and electro-deposition liquid in the tank body is in contact with the electro-deposition source sheet; a pressure rod is screwed on the door-shaped frame, the lower end of the pressure rod acts on a pressure bracket, and the pressure bracket is arranged on the tank body; through the pressure applied by the pressure rod, the gasket is in close contact with the electro-deposition source sheet. According to the utility model, a screw fastening mode of the conventional tank body is changed into a pressure fastening mode, so that the disassembly and assembly efficiency is improved, the stress of the whole electro-deposition tank is uniform, and electro-deposition liquid cannot leak.

Description

Technical Field

[0001] The utility model relates to the technical field of electrodeposition, in particular to an electrodeposition tank for a large-area β radiation source. Background Technique

[0002] The range of β radiation sources is short. Due to self-absorption and absorption by the support, β particles cannot reach the detector, thus affecting the detection efficiency. Therefore, methods such as electroplating or microporous adsorption of aluminum oxide layers are generally used to produce β radiation sources. The electroplating method is to electroplate metal ions containing β particle emitters on the electrode surface according to the electrode potential of the metal ions of the β particle emitters. This method has problems such as difficult electroplating of weak electrolytes, harsh condition requirements, and relatively complex processes. Aluminum is prone to form a natural oxide film, and at the same time its electrode potential is very negative, and it is often eroded in the electroplating solution and displaces the metal to be plated. Therefore, the method of microporous adsorption of aluminum oxide layer requires simple equipment, convenient operation, low cost, and a wide range of applicable nuclides.

[0003] The book "Preparation and Application of Radiation Sources" published by Atomic Energy Press discloses that H2SO4 corrodes aluminum support sheets to form porous alumina films, radioactive substances are adsorbed on the alumina films, and an organic film is coated on the surface of the alumina films to prevent the leakage of radioactive metal ions. This method is applicable to 60 Co, 137 Cs, 204 Tl, 90 Sr / 90 Y flat plate radiation sources. Among them, the electrodeposition tank for preparing a 170×120mm radiation source is a rectangular tank body, which is divided into upper and lower parts. The upper part has a rectangular groove with a sealing rubber ring in the groove. Then the metal substrate is placed on it. Finally, the lower part of the tank body is placed on the metal substrate. After the upper and lower tank bodies are aligned with the screw holes, they are fastened by screws.

[0004] This electrodeposition tank has the following problems:

[0005] 1. The upper and lower tank bodies are fastened by screws, and at least 12 screws are required. The disassembly and assembly efficiency of the tank body is relatively low.

[0006] 2. The upper and lower tank bodies are fastened by screws, and the tightness of the screws during the fastening process is inconsistent, which easily leads to poor sealing of the electrodeposition tank and leakage of the electrodeposition solution.

[0007] 3. The volume and weight of the tank body of the electrodeposition tank are large, the operation is inconvenient, and the electrodeposition solution will spill out during the process of pouring out the electrodeposition solution after electrodeposition, posing a risk of radioactive contamination.

[0008] 4. The electrode wire of the electrodeposition tank does not have a fixed bracket and is fixed manually during the electrodeposition process. It cannot ensure that the electrode distance remains consistent during the deposition process, which affects the quality of the radiation source. Utility Model Content

[0009] In view of the deficiencies in the prior art, the utility model provides an electrodeposition tank with a large-area beta radiation source, which has the characteristics of easy disassembly and assembly, low leakage of electrodeposition liquid, high working efficiency and deposition quality.

[0010] The utility model discloses an electric deposition tank with a large-area beta radiation source, comprising: a deposition tank fixing frame, a pressure support and a tank body;

[0011] The tank body contains an electroplating liquid, the top of the tank body is provided with a first through hole for the anode wire to pass through and penetrate into the electroplating liquid, the bottom of the tank body is provided with a lower opening and a gasket is provided at the lower opening;

[0012] The deposition tank fixing frame includes a cathode base and a portal frame mounted on the cathode base, the cathode base is provided with a groove matching the tank body, an electroplating source sheet is placed in the groove, the lower end of the tank body is placed in the groove, and the electroplating liquid in the tank body is in contact with the electroplating source sheet; a pressure rod is screwed on the portal frame, the lower end of the pressure rod acts on the pressure support, and the pressure support is placed on the tank body; through the pressure applied by the pressure rod, the gasket is in close contact with the electroplating source sheet.

[0013] As a further improvement of the present invention, the anode wire is a platinum wire in the shape of a rectangular mesh; the anode wire is fixed by an anode wire fixing cover, the anode wire fixing cover is fixed in the first through hole, and the anode wire is placed in the electrodeposition liquid and parallel to the electrodeposition source sheet.

[0014] As a further improvement of the present invention, the gasket is a rubber gasket, the material of the trough body is acrylic material, the rubber gasket is fixed to the lower opening of the trough body by glue, and a central hole for power deposition liquid to flow through is provided in the middle of the rubber gasket.

[0015] As a further improvement of the present invention, a second through hole and a third through hole are further provided on the top of the tank body, wherein the second through hole serves as a vent hole, and a straw of a peristaltic pump is placed in the third through hole for extracting the electrodeposition liquid in the tank body.

[0016] As a further improvement of the present invention, the sedimentation tank fixing frame and the pressure support are made of stainless steel.

[0017] As a further improvement of the present invention, the portal frame includes a cross beam and two vertical beams, and the lower ends of the vertical beams are fixed on the cathode base; an internal threaded hole is provided in the middle of the cross beam, the pressure rod is a T-shaped rod, an external thread is provided on the vertical rod of the pressure rod and is screwed into the internal threaded hole, and the lower end of the vertical rod of the pressure rod abuts against the pressure bracket.

[0018] As a further improvement of the present invention, the cathode base is connected to the negative pole of the power supply through a conductive column, the anode wire is connected to the positive pole of the power supply, and the power supply is a DC regulated power supply.

[0019] As a further improvement of the present invention, the pressure bracket includes a pressure plate, and each of the four corners of the pressure plate is provided with a leg, and leg grooves for placing the legs are provided at the four corners of the tank body; the four legs of the pressure bracket are placed in the leg grooves of the tank body, and the lower end of the pressure rod abuts against the center position of the pressure plate.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] The present utility model changes the screw fastening method of the existing tank body to pressure fastening. Based on this, the disassembly and assembly efficiency is improved, the time for disassembling and assembling an electroplating tank is reduced from 4 minutes to 20 seconds, the force on the entire electroplating tank is uniform, and the electroplating solution will not leak;

[0022] The present utility model changes the pouring method of the electroplating solution from direct pouring to extraction by a peristaltic pump, which avoids the risk of spilling during manual pouring of the electroplating solution;

[0023] The present utility model changes the fixing method of the electrode wire during the electroplating process from manual fixing to fixing by a bracket, which ensures the consistency of the electrode distance during the electroplating process. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of an electroplating tank for a large-area β radiation source disclosed by the present utility model;

[0025] Figure 2 is Figure 1 a schematic structural diagram of the fixing frame of the plating tank in

[0026] Figure 3 is Figure 1 a schematic structural diagram of the pressure bracket in

[0027] Figure 4 is Figure 1 a schematic front structural diagram of the tank body in

[0028] Figure 5 is Figure 1 a schematic back structural diagram of the tank body in

[0029] In the figure:

[0030] 10. Deposition tank fixing frame; 11. Cathode base; 12. Groove; 13. Pressure rod; 14. Conductive column; 15. Cross beam; 16. Vertical beam;

[0031] 20. Pressure support; 21. Leg;

[0032] 30. Tank body; 31. First through hole; 32. Second through hole; 33. Third through hole; 34. Lower opening; 35. Leg groove. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0035] As Figures 1 to 5 shown, the present utility model provides an electro-deposition tank for a large-area β radiation source, including: a deposition tank fixing frame 10, a pressure support 20 and a tank body 30; wherein,

[0036] The deposition tank fixing frame 10 of the present utility model includes a cathode base 11, a pressure rod 13 and a portal frame. A groove 12 matching with the tank body 30 is provided on the cathode base 11, so that the lower end of the tank body 30 can be placed in the groove 12; preferably, the tank body 30 is a square tank body and the groove 12 is a square groove. The cathode base 11 is connected to the negative pole of a DC regulated power supply through a conductive column 14. The portal frame is erected on the cathode base 11. The portal frame includes a cross beam 15 and two vertical beams 16. The lower ends of the vertical beams 16 are fixed on the cathode base 11; the cross beam 15 is horizontally arranged and an internal thread hole is provided in the middle of the cross beam 15. The pressure rod 13 is a T-shaped rod. External threads are provided on the vertical rod of the pressure rod 13 and are screwed into the internal thread hole. The lower end of the vertical rod of the pressure rod 13 abuts against the pressure support 20. Further, the deposition tank fixing frame 10 is made of stainless steel.

[0037] The pressure support 20 of the present utility model includes a pressure plate. At each of the four corner positions of the pressure plate, a leg 21 is provided. At the four corner positions of the top of the tank body 30, there are leg grooves 35 for placing the legs 21. The four legs 21 of the pressure support 20 are placed in the leg grooves 35 of the tank body, and the pressure plate is horizontally arranged. The lower end of the vertical rod of the pressure rod abuts against the center position of the pressure plate. Further, the pressure support 20 is made of stainless steel.

[0038] The tank body 30 of the present utility model has a cavity for containing the electroplating solution. The top of the tank body 30 is provided with a first through hole 31, a second through hole 32, and a third through hole 33 that communicate with the cavity. Preferably, the second through hole 32 is arranged at the center position of the tank body 30, and the second through hole 32 and the third through hole 33 are respectively arranged on both sides of the first through hole 31. The first through hole 31 serves as a fixing hole for the anode wire (not shown in the figure), that is, the anode wire is fixed through an anode wire fixing cover (not shown in the figure). The anode wire fixing cover is fixed in the first through hole 31. The anode wire is placed in the electroplating solution and is parallel to the electroplating source sheet (not shown in the figure) placed in the groove 12. The anode wire is connected to the positive pole of the DC regulated power supply. Preferably, the anode wire is a platinum wire and is in the shape of a rectangular net. The second through hole 32 serves as a ventilation hole, and a suction pipe of a peristaltic pump is placed in the third through hole 33 for extracting the electroplating solution in the tank body through the peristaltic pump. The bottom of the tank body 30 is provided with a lower opening 34 that communicates with the cavity. A gasket (not shown in the figure) is provided at the outer ring of the lower opening. The gasket is a rubber gasket. The material of the tank body 30 is acrylic. The rubber gasket is fixedly adhered to the lower opening of the tank body through glue, and a central hole for the electroplating solution to flow through is provided in the middle of the rubber gasket.

[0039] The assembly and electroplating method of the present utility model is as follows:

[0040] S1. Place the electroplating source sheet in the groove 12 of the cathode base 11;

[0041] S2. Place the lower opening 34 (with a rubber gasket) of the tank body 30 in the groove 12 and above the electroplating source sheet;

[0042] S3. Place the legs 21 of the pressure support 20 in the leg grooves 35 at the top of the tank body 30;

[0043] S4. Rotate the pressure rod 13 on the cross beam 15. The pressure rod 13 applies a downward force to the pressure support 20 through continuous rotation, so that the gasket at the lower opening of the tank body 30 is in close contact with the electroplating source sheet to tightly fasten the tank body 30 through pressure;

[0044] S5. Add electroplating solution into the tank body 30 through the third through hole 33, and then fix the anode wire fixing cover with the anode wire fixed in the first through hole 31, so that the anode wire is immersed in the electroplating solution and is parallel to the electroplating source sheet;

[0045] S6. Connect the anode wire to the positive pole of the DC regulated power supply, and connect the conductive column of the cathode base 11 to the negative pole of the DC regulated power supply; turn on the power supply and conduct the electroplating reaction; after completion, remove the electroplating tank from the cathode base, and the electroplating is completed.

[0046] The advantages of the present utility model are as follows:

[0047] The present utility model changes the screw fastening method of the existing tank body to pressure fastening. Based on this, the disassembly and assembly efficiency is improved, the time for disassembling and assembling an electroplating tank is reduced from 4 minutes to 20 seconds, the force on the entire electroplating tank is uniform, and the electroplating solution will not leak.

[0048] The present utility model changes the pouring method of the electroplating solution from direct pouring to extraction by a peristaltic pump, which avoids the risk of spilling when the electroplating solution is manually poured.

[0049] The present utility model changes the fixing method of the electrode wire during the electroplating process from manual fixing to fixing by a bracket, which ensures the consistency of the electrode distance during the electroplating process. The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electroplating tank for a large-area β radiation source, characterized in that, Comprising: A deposition tank fixing frame, a pressure bracket and a tank body; The tank body is filled with an electroplating solution. A first through hole for an anode wire to pass through and extend into the electroplating solution is provided at the top of the tank body. A lower opening is provided at the bottom of the tank body, and a gasket is provided at the lower opening; The deposition tank fixing frame includes a cathode base and a gantry frame erected on the cathode base. A groove matching with the tank body is provided on the cathode base. An electroplating source sheet is placed in the groove. The lower end of the tank body is placed in the groove, and the electroplating solution in the tank body contacts the electroplating source sheet; A pressure rod is screwed on the gantry frame, and the lower end of the pressure rod acts on the pressure bracket, and the pressure bracket is placed on the tank body; Through the pressure applied by the pressure rod, the gasket is in close contact with the electroplating source sheet.

2. The electroplating tank for a large-area β radiation source according to claim 1, characterized in that, The anode wire is a platinum wire and is in the shape of a rectangular mesh; The anode wire is fixed by an anode wire fixing cover, and the anode wire fixing cover is fixed in the first through hole. The anode wire is placed in the electroplating solution and is parallel to the electroplating source sheet.

3. The electroplating bath for a large-area β radiation source according to claim 1, characterized in that, The gasket is a rubber gasket, the material of the tank body is acrylic material, the rubber gasket is pasted at the lower opening of the tank body, and a central hole for the electroplating solution to flow through is provided in the middle of the rubber gasket.

4. The electroplating tank for large-area β radiation source according to claim 1, characterized in that, A second through hole and a third through hole are further provided at the top of the tank body. The second through hole serves as a ventilation hole, and a suction pipe of a peristaltic pump is placed in the third through hole for sucking the electroplating solution in the tank body.

5. The electroplating tank for a large-area β radiation source according to claim 1, wherein The deposition tank fixing frame and the pressure bracket are made of stainless steel.

6. The electroplating bath for a large-area β radiation source according to claim 1, characterized in that, The gantry frame includes a cross beam and two vertical beams. The lower ends of the vertical beams are fixed on the cathode base; An internal thread hole is provided in the middle of the cross beam. The pressure rod is a T-shaped rod. External threads are provided on the vertical rod of the pressure rod and are screwed in the internal thread hole. The lower end of the vertical rod of the pressure rod abuts against the pressure bracket.

7. The electroplating tank for a large-area β radiation source according to claim 1, characterized in that, The cathode base is connected to the negative pole of the power supply through a conductive column, and the anode wire is connected to the positive pole of the power supply.

8. The electroplating tank for a large-area β radiation source according to claim 1, characterized in that, The pressure bracket includes a pressure plate. A leg is provided at each of the four corner positions of the pressure plate. Leg grooves for placing the legs are provided at the four corner positions of the tank body; The four legs of the pressure bracket are placed in the leg grooves of the tank body, and the lower end of the pressure rod abuts against the center position of the pressure plate.

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