Sintering frame and sintering furnace

Abstract

The utility model discloses a burning frame and a sintering furnace, and belongs to the technical field of part burning. The burning frame comprises a burning unit and a cover plate, the burning unit comprises a burning plate, an auxiliary plate and a plurality of supporting columns, the burning plate and the auxiliary plate are arranged in a stacked mode, the side, away from the auxiliary plate, of the burning plate is provided with an object containing face used for containing burning objects, and the supporting columns are provided with bearing parts used for bearing the auxiliary plate; the cover plate is arranged on the supporting column and located on the side, away from the auxiliary plate, of the load bearing plate, and the cover plate and the load bearing plate are arranged at intervals. The orthographic projection of the bearing part on the auxiliary plate is located on the outer side of the orthographic projection of the burning bearing plate on the auxiliary plate. By limiting the spatial position relation of the burning bearing plate and the auxiliary plate, meanwhile, the auxiliary plate is movably borne on the bearing part in a matched mode, and the cover plate and the burning bearing plate are spaced, so that the burning bearing plate and the auxiliary plate can move towards the cover plate under stress, the upper surface of a burning bearing object can make contact with the cover plate, and therefore the pressing burning smoothing effect is achieved; and the bending phenomenon caused by different shrinkage rates in the high-temperature sintering process is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of part supporting technology, in particular to a supporting frame and a sintering furnace. BACKGROUND

[0002] In the sintering process of a fuel cell sheet or embryo (supporting object), the supporting frame as a key device for carrying and supporting the supporting object has a crucial influence on the quality of the supporting object in terms of structure and performance. However, in the sintering process, the supporting object is prone to bending deformation, affecting the sintering quality. CONTENT OF THE UTILITY MODEL

[0003] The embodiments of the present application provide a supporting frame, aiming to overcome the technical problem that the current supporting frame cannot solve the bending deformation of the supporting object in the sintering process; another object of the embodiments of the present application is to provide a sintering furnace.

[0004] Technical scheme: the embodiments of the present application provide a supporting frame, comprising:

[0005] A supporting unit, comprising: a supporting plate, a sub-plate and a plurality of support columns, the supporting plate and the sub-plate are arranged in layers, the supporting plate has a placing surface on the side away from the sub-plate for placing the supporting object, and the support column is provided with a supporting portion for supporting the sub-plate;

[0006] A cover plate is arranged on the support column and located on the side of the supporting plate away from the sub-plate, and the cover plate is arranged in a spaced manner with the supporting plate;

[0007] The normal projection of the supporting portion on the sub-plate is located on the outside of the normal projection of the supporting plate on the sub-plate.

[0008] In some embodiments, the supporting frame comprises a plurality of the supporting units, and the plurality of the supporting units are arranged in layers along the height direction of the supporting frame, and two adjacent supporting units are connected by the support column.

[0009] In some embodiments, in the two adjacent layers of the supporting units, the sub-plate of the upper layer of the supporting units is arranged in a spaced manner with the supporting plate of the lower layer of the supporting units;

[0010] The space between the sub-plate of the upper layer of the supporting units and the supporting plate of the lower layer of the supporting units contains the supporting object.

[0011] In some embodiments, the cover plate is arranged on the uppermost layer of the supporting units.

[0012] In some embodiments, the support column comprises a base and a supporting portion, and the supporting portion, the supporting portion and the base are sequentially arranged from top to bottom in the height direction.

[0013] The base of the upper layer of the burn receiving unit is in contact with the support part of the lower layer of the burn receiving unit.

[0014] In some embodiments, the area of the base in orthographic projection on the support part is greater than the area of the support part in orthographic projection on the support part.

[0015] In some embodiments, the secondary plate is provided with a clearance groove facing the support column, and the orthographic projection of the base on the secondary plate is located in the clearance groove.

[0016] The application further discloses a sintering furnace, comprising:

[0017] A furnace body having a first cavity;

[0018] A burn receiving frame as described in the above embodiments is arranged in the first cavity;

[0019] A driving assembly partially penetrating into the first cavity and located on the side of the burn receiving frame away from the cover plate in the height direction, the driving assembly being used to drive the secondary plate and the burn receiving plate of the burn receiving frame to move towards the cover plate relative to the support column.

[0020] In some embodiments, the furnace body is provided with a through hole, and the sintering furnace further comprises a frame body having a second cavity, the first cavity and the second cavity being in communication through the through hole;

[0021] The driving assembly is arranged in the second cavity and partially penetrates through the through hole and is located in the first cavity.

[0022] In some embodiments, the driving assembly comprises:

[0023] A lifting column partially penetrating into the first cavity and capable of supporting the burn receiving unit away from the side of the cover plate;

[0024] A support plate arranged at the end of the lifting column away from the burn receiving frame and supporting the lifting column;

[0025] A driving unit connected with the support plate and used to provide driving force.

[0026] Beneficial effects: The burning support frame in the embodiment of the present application comprises a burning unit and a cover plate, the burning unit comprises a burning plate, a sub-plate and a plurality of support columns, the burning plate and the sub-plate are arranged in layers, the burning plate has a placing surface for placing a burning object on the side away from the sub-plate, the support columns are provided with supporting portions for supporting the sub-plate, the cover plate is arranged on the support columns and located on the side of the burning plate away from the sub-plate, and the cover plate is arranged in a spaced manner with the burning plate; the normal projection of the supporting portion on the sub-plate is located on the outside of the normal projection of the burning plate on the sub-plate. By arranging the normal projection of the supporting portion on the sub-plate to be located on the outside of the normal projection of the burning plate on the sub-plate, the spatial position relationship between the burning plate and the sub-plate is limited, and the sub-plate is movably supported on the supporting portion, and the cover plate is spaced from the burning plate, so as to provide a space for the burning plate and the sub-plate to move towards the cover plate relative to the support columns, so that the burning object is driven by an external force to lift the burning plate and the sub-plate to hold the burning object during the burning process, and the upper surface of the burning object is in contact with the cover plate, thereby playing a pressing and burning flattening role and preventing the bending phenomenon caused by different shrinkage rates during high-temperature sintering.

[0027] The sintering furnace in the embodiment of the present application is the burning support frame as described in the above embodiment. Therefore, all the technical features and technical effects of the above burning support frame can be possessed, which will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0029] In order to more completely understand the present application and its beneficial effects, the following description will be made in conjunction with the drawings, in which the same reference numerals in the following description represent the same parts.

[0030] Figure 1 is a schematic diagram of the overall structure of the burning support frame provided in an exemplary embodiment of the present disclosure;

[0031] Figure 2 is a schematic diagram of the overall structure of the burning support frame provided in another exemplary embodiment of the present disclosure;

[0032] Figure 3 is Figure 2 is an enlarged schematic diagram of part A in

[0033] Figure 4 is a schematic diagram of the overall structure of the sintering furnace provided in an exemplary embodiment of the present disclosure;

[0034] Figure 5is a schematic view of a front structure of a sintering furnace provided in an exemplary embodiment of the present disclosure;

[0035] Figure 6 is Figure 4 is an enlarged schematic view of part B in FIG. 1;

[0036] Figure 7 is a schematic view of a structure in which a furnace body and a frame body are separate from each other in a sintering furnace provided in an exemplary embodiment of the present disclosure;

[0037] Explanation of Reference Numerals:

[0038] 10, a supporting frame; 100, a supporting unit; 110, a supporting plate; 120, a sub plate; 130, a supporting column; 111, a placement surface; 20, a supported object; 131, a supporting portion; 101, a cover plate; 132, a base; 133, a supporting portion; X, a height direction; 121, an avoiding groove; 30, a furnace body; 300, a first cavity; 40, a driving assembly; 310, a through hole; 50, a frame body; 500, a second cavity; 410, a lifting column; 420, a supporting plate; 430, a driving unit. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, at least one of which can be one, two or more, unless otherwise specifically limited. The terms "first", "second", "third" and the like are only for the convenience of description and naming of parts or embodiments, and do not imply an important order between the parts or between the embodiments.

[0041] As a preamble of the embodiments of the present application, solid oxide fuel cell as a kind of high efficiency, clean energy conversion device, has broad application prospects in the field of energy. Sintering furnace plays a vital role in the production process of fuel cell, including the preparation of substrate, half cell preparation and single cell preparation, etc. all need to use sintering furnace high temperature sintering. In the sintering process, stress will be generated inside the material. When these stresses accumulate to a certain extent, it will cause the cell bending. For example, when the electrolyte and electrode are sintered together, due to the difference in thermal expansion coefficient of the electrolyte and electrode materials, stress will be generated at the interface of the two materials during temperature change. With the progress of sintering, the stress is accumulated, when it exceeds the yield strength of the material, it will cause the bending deformation of the fuel cell. The bending of the fuel cell will cause the cell to crack when the stack is assembled, which greatly affects the life of the stack.

[0042] Therefore, the embodiments of the present application provide a sintering support 10, which aims to solve at least one of the above technical problems.

[0043] Please refer to Figures 1 to 3 As shown in the drawings, the sintering support 10 of the embodiments of the present application comprises a sintering unit 100 and a cover plate 101, the sintering unit 100 comprises a sintering plate 110, a vice plate 120 and a plurality of support columns 130, the sintering plate 110 and the vice plate 120 are arranged in layers, the sintering plate 110 has a placing surface 111 for placing the sintering object 20 on the top surface away from the vice plate 120, i.e. along the X direction, the support column 130 is provided with a supporting part 131 on the top along the X direction, for supporting the vice plate 120; the cover plate 101 is arranged on the support column 130 and located on the side of the sintering plate 110 away from the vice plate 120, the cover plate 101 is arranged in space with the sintering plate 110; the orthographic projection of the supporting part 131 on the vice plate 120 is located outside the orthographic projection of the sintering plate 110 on the vice plate 120. It should be understood that by arranging the orthographic projection of the supporting part 131 on the vice plate 120 outside the orthographic projection of the sintering plate 110 on the vice plate 120, the spatial position relationship of the sintering plate 110 and the vice plate 120 is limited, and at the same time, the vice plate 120 is movably supported on the supporting part 131, and the cover plate 101 is spaced from the sintering plate 110, so that the sintering plate 110 and the vice plate 120 can move towards the cover plate 101 under the action of external force, and the sintering plate 110 and the vice plate 120 can lift the sintering object 20 during sintering, and the upper surface of the sintering object 20 can contact the cover plate 101, so as to play the role of pressing and flattening, and prevent the bending phenomenon caused by different shrinkage rates during high temperature sintering.

[0044] Further, the sub-plate 120 is supported on the support portion 131 of the support column 130 to provide stable support for the supporting plate 110 and the supported object 20. Meanwhile, the sub-plate 120 increases the support area of the supporting plate 110, effectively disperses stress load, improves stress distribution uniformity, and reduces the risk of structural deformation.

[0045] In some embodiments, the supporting frame 10 includes a plurality of supporting units 100 arranged in a stacked manner along the height direction X of the supporting frame 10, and two adjacent supporting units 100 are connected by a support column 130. It should be understood that the plurality of supporting units 100 are detachably connected, and the number of layers of the supporting units 100 of the supporting frame 10 can be increased or decreased according to requirements. Meanwhile, the thickness dimensions of the supporting plate 110 and the sub-plate 120 can be adjusted accordingly to adapt to the internal space of the furnace body 30 of the sintering furnace.

[0046] Specifically, the plurality of supporting units 100 are arranged in a stacked manner along the height direction X, so that the supporting area per unit volume is greatly increased. Compared with a single-layer supporting frame 10, the space utilization rate is improved, more supported objects 20 can be processed at one time, the production efficiency is effectively improved, and the energy consumption cost per supported object 20 is reduced. Two adjacent supporting units 100 are connected by a support column 130 to form a stable three-dimensional structure, which enhances the rigidity and stability of the entire supporting frame 10. When carrying multiple layers of supported objects 20, the influence of external vibration and thermal stress can be effectively resisted to ensure the stability of the supporting process.

[0047] In some embodiments, in the two adjacent layers of supporting units 100, the sub-plate 120 of the upper supporting unit 100 is arranged in a spaced manner with the supporting plate 110 of the lower supporting unit 100; and the space between the sub-plate 120 of the upper supporting unit 100 and the supporting plate 110 of the lower supporting unit 100 accommodates the supported object 20. It should be understood that by limiting the two adjacent layers of supporting units 100, the supporting plate 110 of the lower supporting unit 100 is arranged in a spaced manner with the sub-plate 120 of the upper supporting unit 100 to provide a moving space for the lower supporting plate 110 and the sub-plate 120. During the sintering process, the supported object 20 on the lower supporting unit 100 can be in contact with the sub-plate 120 of the upper supporting unit 100 by applying an external force to drive the supporting plate 110 and the sub-plate 120 of the supporting unit 100 to move relative to the support column 130, thereby playing a role in pressing and flattening, preventing bending due to different shrinkage rates during high-temperature sintering.

[0048] In some embodiments, the cover plate 101 is arranged above the uppermost layer of the supporting and burning units 100. It should be understood that in the multi-layer supporting and burning units 100, the auxiliary plate 120 of the supporting and burning unit 100 in the upper layer is used as the cover plate of the supporting and burning unit 100 in the next layer, that is, only the cover plate 101 needs to be arranged on the uppermost layer of the supporting and burning unit 100, thereby effectively saving the space in the height direction X and improving the space utilization, so as to simultaneously burn more supporting and burning objects 20 and improve the production efficiency. During the supporting and burning process, by applying an external force to the auxiliary plate 120 of the bottom layer of the supporting and burning unit 100, the auxiliary plate 120 and the supporting plate 110 of the supporting frame 10 are driven to move towards the cover plate 101 relative to the support column 130, so that the supporting plate 110 of the bottom layer is pressed together with the auxiliary plate 120 of the upper layer to compress the supporting and burning object 20. By continuously applying the external force, the auxiliary plate 120 and the supporting plate 110 in each layer of the supporting and burning unit 100 are sequentially moved towards the cover plate 101 until the supporting plate 110 in the uppermost layer of the supporting and burning unit 100 is pressed together with the cover plate 101 to compress the supporting and burning object 20. Finally, the supporting and burning object 20 on each layer of the supporting and burning unit 100 can be compressed and flattened, and the simultaneous compression and burning of the multi-layer material in the easy deformation temperature zone is completed, which improves the production efficiency and solves the problem of bending of the supporting and burning object 20.

[0049] In some embodiments, the support column 130 includes a base 132 and a support portion 133, which are sequentially arranged from top to bottom along the height direction X. In adjacent two layers of the supporting and burning units 100, the base 132 of the supporting and burning unit 100 in the upper layer is in contact with the support portion 133 of the supporting and burning unit 100 in the next layer. It should be understood that the base 132 of the supporting and burning unit 100 in the lower layer can be integrally formed with the support portion 133 of the supporting and burning unit 100 in the upper layer, thereby forming a stable and compact connection mode. This connection mode enhances the connection strength and stability between adjacent supporting and burning units 100, and effectively prevents the connection part from loosening or damaging under high temperature and heavy load conditions, thereby ensuring the reliability of the supporting and burning frame 10 during long-term use. In addition, this connection structure facilitates the assembly and disassembly of the supporting and burning frame 10, thereby improving the installation and maintenance efficiency of the equipment.

[0050] In some embodiments, the projection area of the base 132 on the supporting portion 131 is greater than the projection area of the support portion 133 on the supporting portion 131. It should be understood that the above design makes the gravity center of the support column 130 closer to the bottom of the supporting and burning frame 10, thereby enhancing the stability of the support column 130. When carrying multiple layers of supporting and burning objects 20, the support column 130 can better disperse and bear the load from above, thereby reducing the risk of deformation or fracture of the support column 130.

[0051] In some embodiments, the sub-plate 120 is provided with a relief groove 121 towards the support column 130, and the orthographic projection of the base 132 on the sub-plate 120 is located in the relief groove 121. It should be understood that by opening the relief groove 121 on the sub-plate 120, when the sub-plate 120 is moved upwards to the upper layer of the bearing and burning unit 100, the sub-plate 120 will not interfere with the base 132 of the upper layer of the bearing and burning unit 100, ensuring that the sub-plate 120 and the support plate can be moved stably, reducing unnecessary stress transmission, making the structure of the bearing and burning unit 100 more stable, and improving the reliability of the bearing and burning frame 10 during long-term use.

[0052] In some embodiments, the bearing and burning unit 100 is made of any one or a combination of corundum, 95 alumina, 99 alumina or silicon carbide.

[0053] Please refer to Figures 1 to 3 As shown in the drawings, the application also discloses a sintering furnace, which comprises a furnace body 30, a bearing and burning frame 10 according to the above-mentioned embodiments, and a driving assembly 40; the furnace body 30 has a first cavity 300, the bearing and burning frame 10 is arranged in the first cavity 300, the driving assembly 40 is partially arranged in the first cavity 300 and located on the side of the bearing and burning frame 10 away from the cover plate 101 in the height direction X, and the driving assembly 40 is used to drive the sub-plate 120 and the bearing and burning plate 110 of the bearing and burning frame 10 to move towards the cover plate 101 relative to the support column 130. It should be understood that the movable end of the driving assembly 40 is arranged in the first cavity 300 of the furnace body 30, and a pushing force is applied to the sub-plate 120 of the bottom layer of the bearing and burning frame 10.

[0054] In some embodiments, the furnace body 30 is provided with a through hole 310, and the sintering furnace further comprises a rack body 50, the rack body 50 has a second cavity 500, the first cavity 300 and the second cavity 500 are communicated through the through hole 310; the driving assembly 40 is arranged in the second cavity 500 and has a part arranged in the first cavity 300 through the through hole 310.

[0055] In some embodiments, the driving assembly 40 comprises a lifting column 410, a supporting plate 420 and a driving unit 430; the lifting column 410 is partially arranged in the first cavity 300 and can support the side of the bearing and burning unit 100 away from the cover plate 101; the supporting plate 420 is arranged at the end of the lifting column 410 away from the bearing and burning frame 10 and supports the lifting column 410; and the driving unit 430 is connected with the supporting plate 420 and is used to provide a driving force.

[0056] Optionally, the sintering furnace further comprises a pressure sensing device for monitoring the pressure provided by the lifting column in real time.

[0057] In some embodiments, the lifting column 410 is made of any one or a combination of corundum, 95 alumina, 99 alumina or silicon carbide.

[0058] In some embodiments, the sintering furnace further comprises a heater arranged on the inner wall of the accommodating cavity for providing a heat treatment temperature for the inside of the sintering furnace.

[0059] It should be understood that the supporting frame and the sintering furnace can perform the pressure sintering operation at any temperature zone in the heat treatment process according to the process requirements, and the process flexibility is realized.

[0060] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0061] The supporting frame and the sintering furnace provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application; those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A firing support frame, characterized in that, include: The firing unit (100) includes a firing plate (110), a sub-plate (120), and a plurality of support columns (130). The firing plate (110) and the sub-plate (120) are stacked. The firing plate (110) has a placement surface (111) for placing the firing material (20) on the side away from the sub-plate (120). The support columns (130) are provided with a support part (131) for supporting the sub-plate (120). A cover plate (101) is disposed on the support column (130) and located on the side of the firing plate (110) away from the sub-plate (120). The cover plate (101) and the firing plate (110) are spaced apart. The orthographic projection of the support portion (131) on the sub-plate (120) is located outside the orthographic projection of the firing plate (110) on the sub-plate (120).

2. The firing support according to claim 1, characterized in that, The firing rack (10) includes a plurality of firing units (100), which are stacked along the height direction (X) of the firing rack (10), and adjacent two firing units (100) are connected by the support column (130).

3. The firing support according to claim 2, characterized in that, In the two adjacent firing units (100), the sub-plate (120) of the upper firing unit (100) and the firing plate (110) of the lower firing unit (100) are arranged at intervals. The space between the sub-plate (120) of the upper firing unit (100) and the firing plate (110) of the lower firing unit (100) contains the firing material (20).

4. The firing support according to claim 2, characterized in that, The cover plate (101) is disposed on the uppermost firing unit (100).

5. The firing support according to claim 2, characterized in that, The support column (130) includes a base (132) and a support part (133). Along the height direction (X), the support part (133), the supporting part (131), and the base (132) are arranged sequentially from top to bottom. In two adjacent firing units (100), the base (132) of the upper firing unit (100) is in contact with the support (133) of the lower firing unit (100).

6. The firing support according to claim 5, characterized in that, The projected area of ​​the base (132) on the support (131) is greater than the projected area of ​​the support (133) on the support (131).

7. The firing support according to claim 6, characterized in that, The sub-plate (120) is provided with a clearance groove (121) facing the support column (130), and the orthographic projection of the base (132) on the sub-plate (120) is located in the clearance groove (121).

8. A sintering furnace, characterized in that, include: The furnace body (30) has a first cavity (300); The firing support (10) as described in any one of claims 1 to 7, wherein the firing support (10) is disposed within the first cavity (300); A drive assembly (40) is partially inserted into the first cavity (300) and located on the side of the firing rack (10) away from the cover plate (101) in the height direction (X). The drive assembly (40) is used to drive the sub-plate (120) and the firing plate (110) of the firing rack (10) to move relative to the support column (130) toward the cover plate (101).

9. The sintering furnace according to claim 8, characterized in that, The furnace body (30) is provided with a through hole (310), and the sintering furnace also includes a frame (50), the frame (50) having a second cavity (500), and the first cavity (300) and the second cavity (500) are connected through the through hole (310); The drive assembly (40) is disposed in the second cavity (500) and has a portion passing through the through hole (310) and located in the first cavity (300).

10. The sintering furnace according to claim 9, characterized in that, The driving component (40) includes: The supporting column (410) is partially inserted into the first cavity (300) and can support the side of the firing unit (100) away from the cover plate (101); A support plate (420) is disposed at the end of the lifting column (410) away from the fire support frame (10) and supports the lifting column (410); A drive unit (430), connected to the tray (420), is used to provide driving force.

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