Aluminum alloy oxidation pond

Abstract

The utility model discloses an aluminum alloy oxidation pond which comprises an oxidation tank and a plurality of cathode pieces hung on the side wall of the oxidation tank, a heating tank is arranged below the oxidation tank, a controller is installed on the outer side wall of the heating tank, the heating tank is filled with heat conduction oil, S-shaped heating pipes are evenly laid in the heat conduction oil, and the S-shaped heating pipes are arranged on the outer side wall of the heating tank. A temperature sensor is mounted on the inner side wall of the oxidation tank, a plurality of micropore nozzles are mounted on the inner bottom surface of the oxidation tank, an air guide pipe communicated with the micropore nozzles is further mounted on the outer side wall of the heating tank, the inlet end of the air guide pipe is connected with a filter box, and the inlet end of the filter box is connected with a high-pressure fan. The heat conduction oil is heated through the heating pipe, then the oxidation tank is heated through the heat conduction oil, so that local overheating is prevented, electrolyte is heated more uniformly, meanwhile, the high-pressure fan is arranged to convey compressed air into the micropore nozzles through the air guide pipe, the liquid is disturbed through rising of bubbles, and the distribution uniformity is further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum alloy processing technical field especially aluminum alloy oxidation pool. BACKGROUND

[0002] In order to improve the corrosion resistance of the surface of aluminum alloy, the aluminum alloy is generally subjected to oxidation processing, and the operation is usually as follows: the aluminum alloy product is placed as an anode in an oxidation pool, is immersed in an electrolyte, and is subjected to electrolytic chemical reaction with a cathode sheet inside the oxidation pool, so as to form an oxide film on the surface of the aluminum alloy.

[0003] At present, when the aluminum alloy oxidation electrolysis reaction is carried out, the temperature of the electrolyte in the oxidation pool needs to be strictly controlled, and the heating device of the existing oxidation pool usually directly heats by using a heating element. Direct heating is easy to cause local overheating in the oxidation pool, resulting in uneven temperature distribution. The temperature uniformity is very important for the anodic oxidation process, because the temperature difference will affect the thickness and structure of the oxide film. If the temperature of some areas is too high, it may cause the reaction to be too fast and the film layer to be loose. If the temperature is too low, the reaction may be insufficient and the film layer may be uneven.

[0004] Therefore, we propose an aluminum alloy oxidation pool to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an aluminum alloy oxidation pool to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An aluminum alloy oxidation pool comprises an oxidation tank and a plurality of cathode sheets suspended on the side wall of the oxidation tank, the bottom of the oxidation tank is provided with a heating tank, a controller is installed on the outer side wall of the heating tank, the inside of the heating tank is filled with heat conducting oil, S-shaped heating pipes are uniformly arranged in the heat conducting oil, a temperature sensor is installed on the inner side wall of the oxidation tank, a plurality of micro-hole nozzles are installed on the inner bottom surface of the oxidation tank, a gas guide pipe that is in communication with the micro-hole nozzles is also installed on the outer side wall of the heating tank, the inlet end of the gas guide pipe is connected with a filter box, and the inlet end of the filter box is connected with a high-pressure fan.

[0008] In a further embodiment, the bottom of the oxidation tank extends into the heating tank and is immersed in the heat conducting oil, and the bottom of the oxidation tank does not contact the S-shaped heating pipes.

[0009] In a further embodiment, the outlet end of the gas guide pipe extends into the heating tank and is connected with a main horizontal pipe, and the main horizontal pipe is connected with branch pipes that one-to-one correspond to the micro-hole nozzles.

[0010] In a further embodiment, a one-way valve is installed between the micro-hole nozzles and the branch pipes.

[0011] In further embodiments, the inside of the filter box is provided with a non-woven fabric filter layer and an activated carbon filter layer, and the activated carbon filter layer is close to the inlet end of the air guide pipe, and the non-woven fabric filter layer is close to the inlet end of the filter box.

[0012] In further embodiments, the temperature sensor is provided with a plurality of intervals along the inner side wall of the oxidation tank.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a heating pipe heats the heat -conducting oil in the heating groove, and then heats the oxidation tank through the heat -conducting oil, avoids that the heating pipe directly contacts the oxidation tank, prevents local overheating, makes its heating more even, and the high -pressure fan is provided and transports compressed air to the micropore nozzle through the air guide pipe, utilizes the bubble rising disturbance liquid, and further enhances the evenness of electrolyte temperature distribution. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the right front view structural schematic drawing of the utility model;

[0016] Figure 2 It is the right rear view structural schematic drawing of the utility model;

[0017] Figure 3 It is the inside structure schematic drawing of the heating groove of the utility model;

[0018] Figure 4 It is the inside structure schematic drawing of the filter box of the utility model.

[0019] In the drawing: 1, oxidation tank;2, cathode sheet;3, heating groove;4, controller;5, heating pipe;6, micropore nozzle;7, air guide pipe;71, main cross pipe;72, branch pipe;8, filter box;81, non-woven fabric filter layer;82, activated carbon filter layer;9, high -pressure fan;10, temperature sensor. DETAILED DESCRIPTION

[0020] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0021] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication, for the ordinary skilled in the art, the above-mentioned term can be understood by the specific meaning in the utility model through specific circumstances.

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1-3 An aluminum alloy oxidation tank, comprising an oxidation tank 1 and a plurality of cathode sheets 2 suspended on the side wall of the oxidation tank 1, the oxidation tank 1 contains electrolyte, the cathode sheets 2 are immersed in the electrolyte, a heating tank 3 is arranged below the oxidation tank 1, a controller 4 is arranged on the outer side wall of the heating tank 3, the inside of the heating tank 3 is filled with heat conducting oil, S-shaped heating pipes 5 are uniformly arranged in the heat conducting oil, the heating pipes 5 are electrically connected with the controller 4, so as to control the working of the heating pipes 5, the heating pipes 5 do not directly heat the oxidation tank 1, but first heat the heat conducting oil, and then the heat conducting oil heats the oxidation tank 1, a temperature sensor 10 is arranged on the inner side wall of the oxidation tank 1, the temperature sensor 10 is also electrically connected with the controller 4, so as to timely know the temperature in the oxidation tank 1, a plurality of microporous nozzles 6 are arranged on the inner bottom surface of the oxidation tank 1, a gas guide pipe 7 which is in communication with the microporous nozzles 6 is also arranged on the outer side wall of the heating tank 3, the inlet end of the gas guide pipe 7 is connected with a filter box 8, and the inlet end of the filter box 8 is connected with a high-pressure fan 9, when the high-pressure fan 9 works, the gas flow is guided to the microporous nozzles 6 through the gas guide pipe 7, the microporous nozzles 6 spray out gas bubbles, and the gas bubbles are used to disturb the liquid by rising.

[0024] Specifically, the bottom of the oxidation tank 1 extends into the heating tank 3 and is immersed in the heat conducting oil, the bottom of the oxidation tank 1 does not contact the S-shaped heating pipes 5, and the part of the oxidation tank 1 contacting the heat conducting oil is made of a material with good heat conduction and corrosion resistance, such as ceramic materials such as silicon carbide or silicon nitride, so as to facilitate rapid heating, and the part of the oxidation tank 1 exposed outside the heating tank 3 is wrapped with a material with good heat preservation, such as glass wool or rock wool.

[0025] Further, please refer to Figures 3-4The temperature sensor 10 is arranged in multiple along the inner side wall of the oxidation groove 1, so that the temperature of each area can be detected by arranging the multi-point temperature detection probe in the oxidation groove 1, and the temperature distribution can be understood by comparing the data between the probes, and if the temperature difference is too large, the high-pressure fan 9 can be started to work at high speed to increase the amount of bubble formation and accelerate the turbulence to promote the uniform distribution of the electrolyte temperature.

[0026] The outlet end of the air guide pipe 7 extends into the heating groove 3 and is connected with a main horizontal pipe 71, and the main horizontal pipe 71 is connected with branch pipes 72 corresponding to the micro-porous nozzles 6 one by one, and the main horizontal pipe 71 and the branch pipes 72 are immersed in the heat conducting oil, so as to preheat the airflow in the pipe, reduce the temperature difference between the air and the electrolyte, and thus reduce the influence of the bubbles on the temperature of the electrolyte. At the same time, a one-way valve is installed between the micro-porous nozzle 6 and the branch pipe 72, so as to prevent the electrolyte from flowing back into the branch pipe 72.

[0027] The inside of the filter box 8 is installed with a non-woven fabric filter layer 81 and an activated carbon filter layer 82, and the activated carbon filter layer 82 is close to the inlet end of the air guide pipe 7, and the non-woven fabric filter layer 81 is close to the inlet end of the filter box 8, so that the airflow can be filtered through the non-woven fabric filter layer 81 and the activated carbon filter layer 82 to remove most of the particulate impurities and oil mist, thereby avoiding air pollution of the oxidation film.

[0028] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An aluminum alloy oxidation tank, comprising an oxidation tank (1) and a plurality of cathode plates (2) suspended on the side wall of the oxidation tank (1), characterized in that: The oxidation tank (1) is provided with a heating tank (3), and a controller (4) is installed on the outer wall of the heating tank (3). The heating tank (3) is filled with heat transfer oil, and S-shaped heating tubes (5) are evenly laid in the heat transfer oil. A temperature sensor (10) is installed on the inner wall of the oxidation tank (1), and several micro-hole nozzles (6) are installed on the inner bottom surface of the oxidation tank (1). A gas guide pipe (7) connected to the micro-hole nozzles (6) is also installed on the outer wall of the heating tank (3). The inlet end of the gas guide pipe (7) is connected to a filter box (8), and the inlet end of the filter box (8) is connected to a high-pressure blower (9).

2. The aluminum alloy oxidation tank according to claim 1, characterized in that: The bottom of the oxidation tank (1) extends into the heating tank (3) and is immersed in the heat transfer oil, and the bottom of the oxidation tank (1) does not contact the S-shaped heating pipe (5).

3. The aluminum alloy oxidation tank according to claim 1, characterized in that: The outlet end of the air guide pipe (7) extends into the heating tank (3) and is connected to the main horizontal pipe (71), and the main horizontal pipe (71) is connected to the branch pipe (72) corresponding to the micro-orifice nozzle (6).

4. The aluminum alloy oxidation tank according to claim 3, characterized in that: A one-way valve is also installed between the micro-orifice nozzle (6) and the branch pipe (72).

5. The aluminum alloy oxidation tank according to claim 1, characterized in that: The filter box (8) is equipped with a non-woven fabric filter layer (81) and an activated carbon filter layer (82), with the activated carbon filter layer (82) close to the inlet end of the air guide pipe (7) and the non-woven fabric filter layer (81) close to the inlet end of the filter box (8).

6. The aluminum alloy oxidation tank according to claim 1, characterized in that: Multiple temperature sensors (10) are spaced apart along the inner wall of the oxidation tank (1).

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