Metal ceramic inert anode isostatic pressing forming device

Abstract

The invention belongs to the technical field of aluminum smelting anode material forming, and particularly relates to a metal ceramic inert anode isostatic pressing forming device. The metal ceramic inert anode isostatic pressing forming device comprises an isostatic pressing machine; a housing; the first flexible die sleeve is arranged in the shell and is attached to the inner wall of the shell; the inner core is arranged in the first flexible die sleeve in a suspended mode and provided with a first cavity communicated with the isostatic pressing machine, and a plurality of through holes communicated with the first cavity are formed in the inner core; the second flexible die sleeve is arranged outside the inner core in a sleeving manner; the first flexible die sleeve and the second flexible die sleeve are arranged in a spaced mode so as to form an interlayer space used for containing metal ceramic inert anode powder.

Description

Technical Field

[0001] This application belongs to the technical field of aluminum smelting anode material forming, and specifically relates to an isostatic pressing forming device for cermet inert anodes. Background Art

[0002] During the operation of inert anode aluminum electrolysis, the outer surface of the inert anode corresponding directly to the cathode is the electrolysis reaction surface, and the vertical distance between the electrolysis reaction surface and the cathode is called the pole pitch. Maintaining the uniformity of the pole pitch between the anode and the cathode is a prerequisite for ensuring uniform anode current distribution and stable electrolysis operation. Therefore, the outer surface of the inert anode should be kept as flat as possible, especially the outer surface corresponding directly to the cathode.

[0003] In related technologies, the outer surface of the green body of the inert anode is prone to unevenness, and machining is required to keep the outer surface flat. This not only prolongs the production process, but also increases the preparation time, cost, and causes waste of cermet powder raw materials, which is not conducive to the industrialization and batch preparation of cermet inert anodes. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an isostatic pressing forming device for cermet inert anodes, aiming to at least solve to some extent the technical problem that the outer surface of the green body of the inert anode is prone to unevenness.

[0005] The technical solution of the present invention is as follows:

[0006] An isostatic pressing forming device for cermet inert anodes, comprising: an isostatic press; a housing; a first flexible mold sleeve disposed inside the housing and fitting with the inner wall of the housing; a core suspended inside the first flexible mold sleeve and having a first chamber communicating with the isostatic press, the core being provided with a plurality of through holes communicating with the first chamber; a second flexible mold sleeve sleeved outside the core; wherein, the first flexible mold sleeve and the second flexible mold sleeve are spaced apart to form a sandwich space for accommodating cermet inert anode powder.

[0007] In some embodiments, the isostatic pressing forming device for cermet inert anodes further comprises: a suspension assembly connected to the housing and the core.

[0008] In some embodiments, the suspension assembly comprises: a positioning bracket located outside the housing and connected to the core; a connecting member passing through the positioning bracket and connected to the housing.

[0009] In some embodiments, the isostatic pressing forming device for cermet inert anodes further comprises: a seal disposed between the first flexible mold sleeve and the second flexible mold sleeve and located above the cermet inert anode powder.

[0010] In some embodiments, the isostatic pressing forming device for the cermet inert anode further comprises: a hoop, sleeved outside the first flexible mold sleeve and located above the cermet inert anode powder; wherein, along the radial direction of the first flexible mold sleeve, at least part of the projection of the hoop falls on the seal.

[0011] In some embodiments, the isostatic pressing forming device for the cermet inert anode further comprises: a hoop, sleeved outside the first flexible mold sleeve and located above the cermet inert anode powder.

[0012] In some embodiments, the isostatic pressing forming device for the cermet inert anode further comprises a vibrating table; wherein, the housing is arranged on the vibrating table.

[0013] In some embodiments, the housing is provided with a second chamber and a first opening communicating with the second chamber, the first flexible mold sleeve is provided with a second opening communicating with the first opening, and the inner core is provided with a third opening communicating with the isostatic press and the first chamber; wherein, the first flexible mold sleeve is attached to the inner wall of the second chamber, the inner core passes through the second opening and is suspended inside the first flexible mold sleeve, and the third opening is located above the first opening and the second opening.

[0014] In some embodiments, a plurality of the through holes are uniformly formed in the inner core.

[0015] In some embodiments, a mold release agent is provided between the inner core and the second flexible mold sleeve.

[0016] The beneficial effects of the present invention at least include:

[0017] Since the first flexible mold sleeve is arranged inside the housing and is attached to the inner wall of the housing, the housing can support the first flexible mold sleeve. Since the inner core is suspended inside the first flexible mold sleeve and has a first chamber communicating with the isostatic press, the liquid in the isostatic press will enter the first chamber.

[0018] Since the inner core is provided with a plurality of through holes communicating with the first chamber, the second flexible mold sleeve is sleeved outside the inner core, and the first flexible mold sleeve and the second flexible mold sleeve are arranged at intervals to form a sandwich space for accommodating the cermet inert anode powder. Therefore, when preparing the cermet inert anode green body, the cermet inert anode powder is placed in the sandwich space, and the liquid in the isostatic press uniformly transfers the pressure to the second flexible mold sleeve through the plurality of through holes. The second flexible mold sleeve transfers the pressure to the cermet inert anode powder in the sandwich space, compressing the cermet inert anode powder along the direction from the inner core to the housing. Due to the constraint of the housing and the compressibility of the cermet inert anode powder, the cermet powder located in the sandwich space is compressed from the inside to the outside. The outer surface of the cermet inert anode powder is restricted by the first flexible mold sleeve and the housing, so that the outer surface of the cermet inert anode powder does not change. Furthermore, it is ensured that the outer surface of the pressed cermet inert anode green body is flat, achieving a flat outer surface of the cermet inert anode green body after isostatic pressing, without machining, which can improve the preparation efficiency and reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 The first structural schematic diagram of the isostatic pressing forming device for cermet inert anodes in some embodiments;

[0021] Figure 2 is Figure 1 The structural schematic diagram of the cermet inert anode green body prepared by the isostatic pressing forming device for cermet inert anodes in;

[0022] Figure 3 The second structural schematic diagram of the isostatic pressing forming device for cermet inert anodes in some embodiments;

[0023] Figure 4 is Figure 3 The structural schematic diagram of the cermet inert anode green body prepared by the isostatic pressing forming device for cermet inert anodes in;

[0024] Figure 5 The second structural schematic diagram of the isostatic pressing forming device for cermet inert anodes in some embodiments;

[0025] Figure 6 is Figure 5Schematic structural diagram of a green compact of a cermet inert anode prepared by an isostatic pressing device for a cermet inert anode.

[0026] In the drawings:

[0027] Shell 10, second chamber 11, first opening 12;

[0028] First flexible mold sleeve 20, second opening 21;

[0029] Inner core 30, first chamber 31, through hole 32, third opening 33;

[0030] Second flexible mold sleeve 40, fourth opening 41;

[0031] Interlayer space 50;

[0032] Green compact 60 of cermet inert anode;

[0033] Suspension assembly 70, positioning bracket 71, connecting member 72;

[0034] Seal 80;

[0035] Hoop 90. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0038] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] The green body of the cermet inert anode is usually formed by die pressing or isostatic pressing. For large-sized and complex-structured cermet inert anodes, the isostatic pressing method is more suitable. Since the cermet inert anode needs to be connected to a metal guide rod, a guide rod hole is provided inside the cermet inert anode. The shape of the guide rod hole is closely related to the shape of the guide rod itself and the connection process with the guide rod. For large-sized cermet inert anodes, the guide rod hole is usually reserved during the green body forming process. When using isostatic pressing, the position of the guide rod hole is usually designed as a solid metal mold core, with a soft mold sleeve (polyurethane or silicone rubber) on the outside. The space between the soft mold sleeve and the metal mold core is filled with cermet powder, and then the metal mold core and the soft mold sleeve are sealed by tying with a soft plug (polyurethane or silicone rubber) to form a sealed mold body. The mold body is placed in an isostatic press, and the liquid in the isostatic press acts on the soft mold sleeve with the same pressure in all directions, compressing the cermet powder from the outside to the inside, thereby realizing the compression of the cermet powder from the outside to the inside. After the pressure holding is completed at the set pressure, the mold body is taken out, the soft plug is opened, the soft mold sleeve is removed, and the metal mold core is pulled out, thus completing the pressing and forming of the cermet anode green body. For the cermet anode green body obtained by the above conventional method, the outer surface is likely to be uneven. To ensure the flatness of the outer surface of the cermet anode, the outer surface of the green body after forming usually needs to be machined, and in special cases, the weight removed by machining even exceeds 30% of the total weight of the green body.

[0041] Based on the above technical problems, the present application provides an isostatic pressing device for a cermet inert anode, which can compress the cermet inert anode powder from the inside to the outside, so as to reduce the possibility of unevenness on the outer surface of the inert anode green body, reduce costs, and improve the preparation efficiency. Now, with the help of the drawings, the specific details of the isostatic pressing device for the cermet inert anode will be further described.

[0042] Figure 1 is a first structural schematic diagram of an isostatic pressing device for a cermet inert anode in some embodiments; Figure 2 is Figure 1 a structural schematic diagram of a cermet inert anode green body prepared by the isostatic pressing device inFigure 3 The second structural schematic diagram of the isostatic pressing device for cermet inert anodes according to some embodiments; Figure 4 For Figure 3 The structural schematic diagram of the cermet inert anode green body prepared by the isostatic pressing device for cermet inert anodes in Figure 5 The second structural schematic diagram of the isostatic pressing device for cermet inert anodes according to some embodiments; Figure 6 For Figure 5 The structural schematic diagram of the cermet inert anode green body prepared by the isostatic pressing device for cermet inert anodes in. Combining Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the isostatic pressing device for cermet inert anodes according to the embodiments of the present application includes: an isostatic press (not shown in the figure), a housing 10, a first flexible die sleeve 20, an inner core 30, and a second flexible die sleeve 40. The first flexible die sleeve 20 is disposed inside the housing 10 and fits against the inner wall of the housing 10. The inner core 30 is suspended inside the first flexible die sleeve 20 and has a first chamber 31 communicating with the isostatic press. The inner core 30 is provided with a plurality of through holes 32 communicating with the first chamber 31. The second flexible die sleeve 40 is sleeved outside the inner core 30. Among them, the first flexible die sleeve 20 and the second flexible die sleeve 40 are spaced apart to form a sandwich space 50 for accommodating cermet inert anode powder.

[0043] The inner wall of the housing 10 is a flat wall surface.

[0044] Since the first flexible die sleeve 20 is disposed inside the housing 10 and fits against the inner wall of the housing 10, the housing 10 can support the first flexible die sleeve 20. Since the inner core 30 is suspended inside the first flexible die sleeve 20 and has a first chamber 31 communicating with the isostatic press, the liquid in the isostatic press will enter the first chamber 31.

[0045] Since the inner core 30 is provided with a plurality of through holes 32 communicating with the first chamber 31, the second flexible mold sleeve 40 is sleeved outside the inner core 30, and the first flexible mold sleeve 20 and the second flexible mold sleeve 40 are arranged at intervals to form a sandwich space 50 for accommodating the cermet inert anode powder. Therefore, when preparing the cermet inert anode green body 60, the cermet inert anode powder is placed into the sandwich space 50, and the liquid in the isostatic press evenly transmits the pressure to the second flexible mold sleeve 40 through the plurality of through holes 32. The second flexible mold sleeve 40 transmits the pressure to the cermet inert anode powder in the sandwich space 50, compressing the cermet inert anode powder along the direction from the inner core 30 to the housing 10. Due to the constraint of the housing 10 and the compressibility of the cermet inert anode powder, the cermet powder located in the sandwich space 50 is compressed from the inside to the outside. The outer surface of the cermet inert anode powder is restricted by the first flexible mold sleeve 20 and the housing 10, so that the outer surface of the cermet inert anode powder will not change. Furthermore, it is ensured that the outer surface of the pressed cermet inert anode green body 60 is flat, realizing that the outer surface of the cermet inert anode green body 60 is flat after isostatic pressing, without machining, which can improve the preparation efficiency and reduce the cost.

[0046] Combined with Figure 2 , the cermet inert anode green body 60 can be a flat deep cup-shaped cermet inert anode green body. Combined with Figure 4 , the cermet inert anode green body 60 can be a cylindrical deep cup-shaped cermet inert anode green body. Combined with Figure 6 , the cermet inert anode green body 60 can be a frustum-shaped deep cup-shaped cermet inert anode green body.

[0047] In some embodiments, when the cermet inert anode green body 60 is prepared, the inner core 30 and the second flexible mold sleeve 40 are removed, and finally the first flexible mold sleeve 20 together with the formed cermet inert anode green body 60 is taken out from the housing 10, and the first flexible mold sleeve 20 is removed to obtain the cermet inert anode green body 60.

[0048] In some embodiments, the inner corners of the housing 10 are rounded or chamfered, which can make the stress distribution at the inner corners of the housing 10 more uniform, reduce the stress concentration coefficient, improve the strength and fatigue resistance of the housing 10. At the same time, the rounding or chamfering treatment can reduce the friction between the housing 10 and the first flexible mold sleeve 20, making the first flexible mold sleeve 20 easy to separate from the housing 10 when the cermet inert anode green body 60 is prepared.

[0049] In some embodiments, in order to enable the housing 10 to restrict the outer surface of the cermet inert anode powder, the housing 10 is a rigid housing, and the material can be one of nylon, die steel, stainless steel, and 45# steel. The housing 10 is of an integral structure or an assembled structure.

[0050] In some embodiments, the outer shape of the first flexible die sleeve 20 is the same as the shape of the second chamber 11 inside the housing 10 and can fit against the wall surface of the second chamber 11. The material of the first flexible die sleeve 20 is one of polyurethane and silicone rubber. The thickness of the first flexible die sleeve 20 is 4-6 mm.

[0051] In some embodiments, the outer surface of the inner core 30 is flat and smooth, and the corners are rounded or chamfered, which can make the stress distribution at the corners of the inner core 30 more uniform, reduce the stress concentration coefficient, improve the strength and fatigue resistance of the inner core 30. At the same time, the rounding or chamfering of the corners can reduce the friction between the inner core 30 and the second flexible die sleeve 40, and when the green body 60 of the cermet inert anode is prepared, the second flexible die sleeve can be easily separated from the inner core 30.

[0052] In some embodiments, the inner core 30 is a rigid inner core 30, and the material of the inner core 30 is one of nylon, die steel, stainless steel, and 45# steel. The inner core 30 is of either a single-piece structure or an assembled structure.

[0053] In some embodiments, in order to suspend the inner core 30 in the first flexible die sleeve 20, the height of the inner core 30 is greater than the depth of the second chamber 11 of the housing 10, that is, the inner core 30 is spaced from the inner wall of the housing 10. That is to say, there are gaps between the inner core 30 and the side wall and the bottom wall of the housing 10.

[0054] In some embodiments, the material of the second flexible die sleeve 40 is one of polyurethane and silicone rubber. The thickness of the second flexible die sleeve 40 is 4-6 mm.

[0055] Combined with Figure 1 、 Figure 3 and Figure 5 In some embodiments, in order to suspend the inner core 30 in the first flexible die sleeve 20, the isostatic pressing forming device for the cermet inert anode further includes: a suspension assembly 70. The suspension assembly 70 is connected to the housing 10 and the inner core 30. The suspension assembly 70 is supported by the housing 10, and the inner core 30 is suspended in the first flexible die sleeve 20 through the suspension assembly 70.

[0056] Combined with Figure 1 、 Figure 3 and Figure 5, in some embodiments, in order to suspend the inner core 30 in the first flexible mold sleeve 20, the suspension assembly 70 includes: a positioning bracket 71 and a connecting member 72. The positioning bracket 71 is located outside the housing 10 and is connected to the inner core 30 to support the inner core 30 through the positioning bracket 71. The connecting member 72 passes through the positioning bracket 71 and is connected to the housing 10 so that the positioning bracket 71 is connected to the housing 10, realizing the housing 10 to support the positioning bracket 71. Wherein, the connecting member 72 can be a bolt, a screw or a connecting pin.

[0057] In some embodiments, since the connecting member 72 passes through the positioning bracket 71 and is connected to the housing 10, when the cermet inert anode green body 60 is prepared, the connecting member 72 can be detached from the housing 10 so that the positioning bracket 71 can be separated from the housing 10, and then the positioning bracket 71 can be detached from the housing 10 so that the inner core 30 can be taken out from the first flexible mold sleeve 20, facilitating the taking out of the prepared cermet inert anode green body 60 from the housing 10.

[0058] Combined Figure 1 , Figure 3 and Figure 5 , in some embodiments, in order to prevent the cermet inert anode powder in the sandwich space 50 from leaking and / or prevent the liquid of the isostatic press from entering the sandwich space 50, the cermet inert anode isostatic pressing device further includes: a seal 80. The seal 80 is arranged between the first flexible mold sleeve 20 and the second flexible mold sleeve 40 and is located above the cermet inert anode powder. The seal 80 seals the gap between the first flexible mold sleeve 20 and the second flexible mold sleeve 40, ensuring the safety of the cermet inert anode powder in the sandwich space 50. Wherein, the shape of the seal 50 can be annular.

[0059] Combined Figure 1 , Figure 3 and Figure 5 , in some embodiments, in order to further ensure the sealing effect, the cermet inert anode isostatic pressing device further includes: a hoop 90. The hoop 90 is sleeved outside the first flexible mold sleeve 20 and is located above the cermet inert anode powder. Wherein, along the radial direction of the first flexible mold sleeve 20, at least part of the projection of the hoop 90 falls on the seal 50. Under the action of the locking force of the hoop 90, the seal 50 is made to closely adhere to the first flexible mold sleeve 20 and the second flexible mold sleeve 40, which can further prevent the cermet inert anode powder in the sandwich space 50 from leaking and / or prevent the liquid of the isostatic press from entering the sandwich space 50, ensuring the safety of the cermet inert anode powder in the sandwich space 50.

[0060] In some embodiments, the hoop can be one or two of a bolt-fastened pipe clamp, a rubber ring, and a latex ring.

[0061] In some embodiments, in order to prevent the cermet inert anode powder in the interlayer space 50 from leaking and / or prevent the liquid of the isostatic press from entering the interlayer space 50, the cermet inert anode isostatic pressing forming device further includes: a hoop 90. The hoop 90 is sleeved outside the first flexible mold sleeve 20 and is located above the cermet inert anode powder. The first flexible mold sleeve 20 and the second flexible mold sleeve 40 are tightened by the hoop 90 to achieve the seal between the first flexible mold sleeve 20 and the second flexible mold sleeve 40, ensuring the safety of the cermet inert anode powder in the interlayer space 50.

[0062] In some embodiments, in order to compact the cermet inert anode powder in the interlayer space 50, the cermet inert anode isostatic pressing forming device further includes a vibrating table (not shown in the figure). Among them, the housing 10 is arranged on the vibrating table. A fixed amount of cermet inert anode powder is loaded into the interlayer space 50 in batches, and the vibrating table is started. The housing 10 vibrates on the vibrating table so that the cermet inert anode powder in the interlayer space 50 is compacted, facilitating the subsequent pressing to form the cermet inert anode green body 60.

[0063] Combined with Figure 1 、 Figure 3 and Figure 5 In some embodiments, in order to enable the inner core 30 to be suspended in the first flexible mold sleeve 20, the housing 10 is provided with a second chamber 11 and a first opening 12 communicating with the second chamber 11. The first flexible mold sleeve 20 is provided with a second opening 21 communicating with the first opening 12. The inner core 30 is provided with a third opening 33 communicating with the isostatic press and the first chamber 31. Among them, the first flexible mold sleeve 20 fits against the inner wall of the second chamber 11. The inner core 30 passes through the second opening 21 and is suspended in the first flexible mold sleeve 20. That is to say, the inner core 30 can enter the first flexible mold sleeve 20 through the second opening 21, facilitating the installation of the inner core 30.

[0064] In some embodiments, in order to further prevent the liquid of the isostatic press from entering the interlayer space 50, the third opening 33 is located above the first opening 12 and the second opening 21, so that the liquid of the isostatic press can smoothly enter the first chamber 31 through the third opening 33. When the liquid level in the first chamber 31 is higher than the first opening 12 and the second opening 21, the liquid will not enter the first opening 12 and / or the second opening 21, ensuring the safety of the cermet inert anode powder in the interlayer space 50.

[0065] In some embodiments, the first opening 12 adopts an outward-expanded structure, and the third opening 33 forms a space communicating with the outside for the liquid in the isostatic press to enter the inner core 30.

[0066] In some embodiments, the second flexible die sleeve 40 is provided with a fourth opening 41, and the fourth opening 41 is not lower than the second opening 21.

[0067] In some embodiments, in order to enable the liquid in the isostatic press to uniformly transfer the pressure to the second flexible die sleeve 40 through the plurality of through holes 32, the plurality of through holes 32 are uniformly provided in the inner core 30.

[0068] In some embodiments, in order to facilitate the separation of the inner core 30 from the second flexible sleeve 40, a release agent is provided between the inner core 30 and the second flexible die sleeve 40.

[0069] In order to easily remove the inner core 30 from the formed cermet inert anode green body 60, before the inner core 30 is placed into the second flexible sleeve 40, a layer of release agent can be applied to the outer wall of the inner core 30 and the inner wall of the second flexible sleeve 40. After it dries, the die pressing operation can be carried out to reduce the friction between the formed cermet inert anode green body 60 and the second flexible sleeve 40 and the friction between the inner core 30 and the second flexible sleeve 40.

[0070] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0071] In the description of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0072] In the description of the present specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification.

[0073] Although the preferred embodiments of the present application have been described, those of ordinary skill in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0074] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

Claims

1. A cermet inert anode isostatic pressing forming device, characterized in that, Comprising: Isostatic press; Shell; A first flexible die sleeve, disposed inside the shell and fitting with the inner wall of the shell; A core, suspended inside the first flexible die sleeve and having a first chamber communicating with the isostatic press, the core being provided with a plurality of through holes communicating with the first chamber; A second flexible die sleeve, sleeved outside the core; Wherein, the first flexible die sleeve and the second flexible die sleeve are spaced apart to form a sandwich space for accommodating the cermet inert anode powder.

2. The isostatic pressing forming device for cermet inert anode according to claim 1, characterized in that, The cermet inert anode isostatic pressing forming device further comprises: A suspension assembly, connected to the shell and the core.

3. The isostatic pressing forming device for cermet inert anode according to claim 2, characterized in that, The suspension assembly comprises: A positioning bracket, located outside the shell and connected to the core; A connecting piece, passing through the positioning bracket and connecting with the shell.

4. The cermet inert anode isostatic pressing forming device according to any one of claims 1-3, characterized in that, The cermet inert anode isostatic pressing forming device further comprises: A seal, disposed between the first flexible die sleeve and the second flexible die sleeve and located above the cermet inert anode powder.

5. The isostatic pressing forming device for cermet inert anode according to claim 4, wherein The cermet inert anode isostatic pressing forming device further comprises: A hoop, sleeved outside the first flexible die sleeve and located above the cermet inert anode powder; Wherein, along the radial direction of the first flexible die sleeve, at least part of the projection of the hoop falls on the seal.

6. The isostatic pressing forming device for cermet inert anodes according to any one of claims 1-3, characterized in that, The cermet inert anode isostatic pressing forming device further comprises: A hoop, sleeved outside the first flexible die sleeve and located above the cermet inert anode powder.

7. The cermet inert anode isostatic pressing forming device according to any one of claims 1-3, characterized in that, The cermet inert anode isostatic pressing forming device further comprises a vibrating table; Wherein, the shell is disposed on the vibrating table.

8. The isostatic pressing forming device for the cermet inert anode according to any one of claims 1-3, characterized in that, The shell is provided with a second chamber and a first opening communicating with the second chamber, the first flexible die sleeve is provided with a second opening communicating with the first opening, and the core is provided with a third opening communicating with the isostatic press and the first chamber; Wherein, the first flexible die sleeve fits with the inner wall of the second chamber, the core passes through the second opening and is suspended inside the first flexible die sleeve, and the third opening is located above the first opening and the second opening.

9. The cermet inert anode isostatic pressing forming device according to any one of claims 1-3, characterized in that, The plurality of through holes are evenly arranged on the core.

10. The isostatic pressing forming device for cermet inert anodes according to any one of claims 1-3, characterized in that, A mold release agent is provided between the core and the second flexible die sleeve.

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