kiln furniture
Patent Information
- Application Number
- CN202280022607.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-03-19
- Filing Date
- 2022-03-17
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2042-03-17
AI Technical Summary
[0008]此外,例如利用EP2631583B1的H型盒布置,不可能获得所需的盒的精确数量,无论是偶数盒还是奇数盒
[0045]-理想地减少盒的热质量;
Smart Images

Figure CN117043537B_ABST
Abstract
Description
Technical Field
[0001] This application relates to kiln furniture T-boxes, assemblies including the T-boxes, and methods for forming the assemblies. Furthermore, this application also relates to assemblies including T-boxes and the use of the T-boxes to support one or more ceramic objects to be fired in a kiln. Background Technology
[0002] In the production of ceramic products, the precursor ceramic product (i.e., green ceramic product) is fired in a kiln. The firing temperature in the kiln can reach up to 1230°C, and the duration of heating, soaking, and cooling can be up to 72 hours. To prevent the green ceramic product from softening and deforming during firing, these products are usually supported on refractory kiln furniture boxes. Such boxes are known in the prior art and come in a variety of shapes and sizes, as described in prior art documents EP0965809B1, WO2007 / 132276A1, EP2631583B1, or DE202010005560U1, the entire contents of which are incorporated herein by reference.
[0003] For relatively heavy, regularly shaped objects (such as roof tiles), H-shaped boxes are currently preferred, for example... Figure 1 The examples shown are stable because they can be stacked one on top of the other to form a stable assembly. In addition, the H-shaped boxes have enough space between their generally rectangular support sections so that each box can support one or more ceramic products to be fired and allow air circulation.
[0004] Therefore, H-shaped boxes are typically arranged in the kiln by stacking them one on top of the other, leaving sufficient space between the supports to hold the object to be fired. Multiple stacks / blades of boxes are then juxtaposed. This regular arrangement of identical boxes with known dimensions allows for the direct calculation of the number of boxes suitable for the kiln, thus determining the number of individual ceramic objects that can be fired in a single firing operation. The arrangement of the boxes is usually done by machine, which can arrange them quickly and accurately.
[0005] The legs of the bottom box in the box stack / blade rest on reinforced supports on the kiln car, used for loading and unloading boxes containing items to be fired into the kiln. During firing temperatures up to 1230°C, the box and the kiln car (and their reinforced supports) experience different thermal expansions, not only due to the different materials of the box and the kiln car, but also because the kiln car has a larger structure compared to the box, resulting in slower thermal expansion. Therefore, the legs of the H-shaped box resting on the reinforced supports on the kiln car move relative to the supports, causing friction between them. This can create additional stress on the materials, leading to wear and breakage of the box material. This, in turn, prevents the box from being used to form a stable platform, as the stacked boxes in the kiln may collapse during firing, rendering the corresponding production charge unusable and even requiring kiln repairs. However, for economic and ecological reasons, it is desirable to use this type of box as much as possible.
[0006] Furthermore, energy is required to heat all contents within the kiln during firing, including both the green ceramic objects to be fired and the kiln furniture. Therefore, it is desirable to minimize the mass of the kiln furniture relative to the mass of the objects to be fired. Reducing the relative mass of the kiln furniture can improve the energy efficiency of the firing process. It is well known that this can be achieved by perforating the support surface or using legs that do not extend to the full length of one side of the support surface (such as...). Figure 1 As shown in the diagram, the mass of the H-type box can be reduced. However, it is also desirable to further reduce the thermal mass of the box.
[0007] The size of the kiln imposes a physical limitation on the number of boxes that can be introduced into the kiln simultaneously, and thus also limits the number of ceramic objects to be fired in each firing operation. However, the H-shaped boxes need to be arranged with sufficient distance between them to allow for adequate space for thermal expansion. Therefore, firing more green ceramic products simultaneously in the kiln can improve efficiency, and this can be achieved using the current H-shaped boxes.
[0008] Furthermore, it is impossible to obtain the exact number of boxes required, whether even or odd, using the H-type box arrangement of EP2631583B1, for example.
[0009] Therefore, there is a need to provide kiln furniture to solve one or more existing technical problems. Summary of the Invention
[0010] The invention is defined in the appended claims.
[0011] According to a first aspect, a kiln furniture T-box is provided for supporting ceramic objects to be fired in a kiln, the kiln furniture T-box comprising:
[0012] a) A support body, the support body comprising:
[0013] - One or two support surfaces, said one or two support surfaces for supporting one or more ceramic objects to be fired; and
[0014] -Side surface;
[0015] b) One or more legs located on a side surface, wherein the one or more legs are located on only a single side surface; and
[0016] c) At least one of the one or more legs, comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box (e.g., another kiln furniture T-box) of a corresponding shape; and
[0017] d) One or more male engagement portions located on the side surface, the one or more male engagement portions being for a female engagement portion of another kiln furniture box with a corresponding shape.
[0018] According to a second aspect, a kiln furniture assembly is provided for supporting ceramic objects to be fired in a kiln, the kiln furniture assembly comprising:
[0019] a) One or more kiln furniture T-boxes according to this disclosure; and
[0020] b) One or more kiln furniture H-boxes, said kiln furniture H-boxes comprising:
[0021] i) A support body, the support body comprising:
[0022] - One or two support surfaces, said one or two support surfaces for supporting one or more ceramic objects to be fired; and
[0023] -Side surface;
[0024] ii) One or more legs located on each of the two opposing side surfaces; and
[0025] iii) At least one of the one or more legs on each of the two opposing side surfaces includes one or more holes and / or recesses, the one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of a corresponding shape;
[0026] At least one T-shaped box and at least one H-shaped box are connected by the engagement of their male and female joints.
[0027] According to a third aspect, a method is provided for forming a kiln furniture assembly for supporting an object to be fired in a kiln, the method comprising the following steps:
[0028] a) Provide at least one T-shaped box according to this disclosure;
[0029] b) Provide at least one H-type box as defined in this disclosure;
[0030] c) A row is formed by connecting the T-shaped box and the H-shaped box by joining the male and female joints of the T-shaped box and the H-shaped box;
[0031] d) Optionally, the row in step c) can be expanded by connecting other T-shaped boxes to the T-shaped box and / or the H-shaped box in step c);
[0032] e) Optionally, repeat step c) and if step d) exists, repeat step d) once or several times to form (a row) other rows.
[0033] f) If step e) exists, two or more rows may be stacked one on top of the other to form a blade.
[0034] According to a fourth aspect, a set of components is provided for supporting an object to be fired in a kiln, the set of components comprising:
[0035] a) One or more kiln furniture T-boxes according to this disclosure; and
[0036] b) One or more kiln furniture H-type boxes as defined in this disclosure.
[0037] According to a fifth aspect, a kiln furniture T-box is provided for supporting one or more ceramic objects to be fired in a kiln, the kiln furniture T-box comprising:
[0038] a) A support body, the support body comprising:
[0039] - One or two support surfaces, said one or two support surfaces for supporting one or more ceramic objects to be fired; and
[0040] -Side surface;
[0041] b) One or more legs located on a side surface, wherein the one or more legs are arranged only on a single side surface; and
[0042] c) At least one of the one or more legs, comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and
[0043] d) One or more male engagement portions located on the side surface, the one or more male engagement portions being for a female engagement portion of another kiln furniture box with a corresponding shape.
[0044] Certain embodiments of the present invention may provide one or more of the following advantages:
[0045] - Ideally, reduce the thermal mass of the box;
[0046] - Ideally, reduce wear and tear and breakage of the box;
[0047] - Extend the lifespan of the box;
[0048] - Ideally, costs should be reduced;
[0049] - Ideally, it extends the service life before replacement is needed;
[0050] - The arrangement of objects to be fired in the kiln can be narrower, thus allowing more objects to be fired in the kiln at the same time.
[0051] -The blades of the box are more stable because the box is connected via the male and female joints.
[0052] The details, examples, and preferred embodiments provided with respect to any particular aspect or one of the aspects described herein also apply to all aspects of the invention. Unless otherwise stated herein or obviously contradicted by the context, any combination of embodiments, examples, and preferred embodiments described herein, and all possible variations thereof, are included in the invention. Attached Figure Description
[0053] The invention will be further illustrated with reference to the following figures:
[0054] Figure 1 An example of a commonly used H-shaped box is shown, which can also be used in components, methods, and assemblies of this disclosure.
[0055] Figure 2a An example of a row of adjacent H-shaped boxes used in the prior art is shown.
[0056] Figure 2b An example of an H-shaped box and two T-shaped boxes before connection is shown according to this disclosure.
[0057] Figure 2c Interconnected Figure 2b The box.
[0058] Figure 3a An example is shown of an H-shaped box and T-shaped boxes with different structures on both sides of the H-shaped box before they are connected.
[0059] Figure 3b The connection was shown Figure 3a The box.
[0060] Figure 4 An example of a roofing tile is shown, which can be fired in a kiln using the box disclosed herein.
[0061] Figure 5a An example of a box having a male and female engagement portion to which this disclosure applies before connection is shown.
[0062] Figure 5b The connection was shown Figure 5a The box.
[0063] Figure 5c Another example of a box having a male and female engagement portion to which this disclosure applies before connection is shown.
[0064] Figure 6a Another example of a box having a male and female engagement portion to which this disclosure applies before connection is shown.
[0065] Figure 6b The connection was shown Figure 6a The box.
[0066] Figure 7a Another example of a box having a male and female engagement portion to which this disclosure applies before connection is shown.
[0067] Figure 7b The connection was shown Figure 7a The box.
[0068] Figure 8a The diagram shows the H-shaped box, T-shaped box, and two identical roofing tiles to be fired in the kiln, which were previously used in the examples of this application.
[0069] Figure 8b It shows Figure 8a Another view of the box and the ceramic object.
[0070] Figure 9a The example shown in this application illustrates a multi-row T-shaped box connected to an H-shaped box, the multi-row T-shaped boxes being stacked one on top of the other and loaded with roofing tiles to be fired.
[0071] Figure 9b It shows Figure 9a Another view of the box and the ceramic object.
[0072] Figure 10 A standard H-type box according to the prior art is shown after use.
[0073] Figure 11 A box according to one embodiment of the present disclosure after use is shown.
[0074] It is understood that the following description and reference to the figures relate to exemplary embodiments of the invention and should not limit the scope of the claims. Detailed Implementation
[0075] This invention is based on a remarkable discovery that replacing many H-type boxes with T-type boxes in kiln furniture can effectively improve the firing efficiency of items in the kiln. Furthermore, surprisingly, as described in this invention, by using joints that allow the boxes to move unimpeded during expansion and contraction when connected, the service life of the boxes can be extended, and a reduction in damage due to use can be observed.
[0076] In this disclosure, the term "leg" includes a single leg as well as one or more legs, for example, in the expression "one or more legs" unless the opposite meaning is explicitly mentioned and / or the context clearly specifies otherwise.
[0077] T-shaped box
[0078] As described above, according to a first aspect, a kiln furniture T-shaped box is provided for supporting ceramic objects to be fired in a kiln, comprising:
[0079] a) Support structure, including:
[0080] - One or two support surfaces for supporting one or more ceramic objects to be fired; and
[0081] -Side surface;
[0082] b) One or more legs located on a side surface, wherein the one or more legs are arranged only on a single side surface;
[0083] c) At least one of one or more legs comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and
[0084] d) One or more male joint portions located on the side surface, for a female joint portion of the shape corresponding to another kiln furniture box.
[0085] Apart from the legs specified in section b), the T-shaped box according to this disclosure does not include any other legs.
[0086] Each side surface shares an edge with a support surface. If the support includes two support surfaces, the side surface shares another edge with this second support surface. In one embodiment, the two edges (if applicable) are two opposing edges of the side surface, for example, they may be substantially parallel to each other. Furthermore, each side surface shares two edges with two other side surfaces. In one embodiment, the two edges are two opposing edges of the side, for example, they may be substantially parallel to each other. In one embodiment, the side surface is substantially perpendicular to at least one of the one or two support surfaces. In one embodiment, the support includes two support surfaces, for example, the support surfaces are substantially parallel to each other.
[0087] In one embodiment, one or more legs defined in b) are substantially perpendicular to at least one of the support surfaces.
[0088] In one implementation, two dimensions of the support surface (hereinafter referred to herein as the width and length of the support) are significantly larger than the third dimension (hereinafter referred to herein as the thickness of the support), for example, by a factor of 4.0, 5.0, or 6.0.
[0089] In one embodiment, the width of the support is from about 5.0 cm to about 60 cm, and the length of the support is from about 20 cm to about 60 cm. For example, the width of the support is from about 4.0 cm to about 55 cm, and the length of the support is from about 4.0 cm to about 55 cm.
[0090] In one embodiment, the thickness of the support is from about 0.4 cm to about 20 cm, for example from about 0.4 cm to about 10 cm.
[0091] The term "approximately vertical" means that a precise vertical arrangement is not mandatory and may vary slightly depending on the size of the box and the application. "Approximately vertical" includes variations of approximately ±5°, or approximately ±1°, or approximately ±0.5°. These variations are known to those skilled in the art. In some examples, the legs may be square or rectangular, or the legs may be trapezoidal in shape.
[0092] The term "approximately parallel" means that a precise parallel arrangement is not mandatory and may vary slightly depending on the size of the box and the application. The term "approximately parallel" includes variations of approximately ±5°, or approximately ±1°, or approximately ±0.5°. These variations are known to those skilled in the art.
[0093] In one implementation, one or more feet defined in section b) are removable.
[0094] In another implementation, one or more legs defined in section b) are non-movable.
[0095] Male and female engagement portions are well known in the art. In the T-shaped box according to this disclosure, at least one of one or more legs includes: one or more holes and / or recesses adapted to serve as a female engagement portion corresponding to the shape of a male engagement portion for another kiln furniture box; and one or more male engagement portions located on the side surface for a female engagement portion corresponding to the shape of another kiln furniture box.
[0096] According to this disclosure, the T-shaped box can be interconnected using its male and female joints. Therefore, a first T-shaped box can be connected to the female joint of a second T-shaped box or H-shaped box via its male joint. In use, the male joint of the first T-shaped box rests on the bottom of the corresponding female joint of the second T-shaped box or H-shaped box. Thus, the first T-shaped box stands on one or more of its own legs and on one or more of the legs of the second T-shaped box or H-shaped box.
[0097] According to this disclosure, a first T-shaped box can support ceramic objects to be fired in the kiln without requiring additional legs arranged on the other side surface of the T-shaped box. Therefore, the T-shaped box stands on one or more legs located on its side surface and on one or more legs of an adjacent box connected to the male joint of the T-shaped box. This adjacent box can be another T-shaped box or an H-shaped box. Thus, compared to using an H-shaped box alone, the total number of legs required to support the same number of ceramic objects to be fired is significantly reduced, thereby saving space. A large number of T-shaped boxes can be arranged side-by-side in this manner to form a row. The male joint of the outermost T-shaped box in this row can be connected to an H-shaped box to provide the necessary stability for it to stand on a reinforced resting point on the kiln car. This arrangement will be described in more detail in the second aspect below.
[0098] According to the invention, when the boxes are connected to each other, the male engagement portion of the T-shaped box is partially inserted into the female engagement portion of the adjacent box (e.g., another T-shaped box or H-shaped box). In other words, adjacent boxes are connected, but a gap exists between the end of the male engagement portion and the distal surface of the female engagement portion. Therefore, the boxes are arranged to allow each male and female engagement portion to thermally expand without restriction when heated to temperatures up to 1230°C, as will be described in more detail below. The gap allows the boxes to connect without damage and / or allows the boxes to expand and contract during heating and cooling without damage. In this application, "partially inserted" also includes cases where the male engagement portion rests on the female engagement portion. Figure 6a and Figure 6b The image shows a non-limiting example of this situation.
[0099] Furthermore, the T-shaped box according to this disclosure allows for the side-by-side arrangement of even and odd numbers of boxes, such as one H-shaped box and one, two, three, etc., T-shaped boxes, thereby effectively utilizing the available space within the kiln. Moreover, compared to a single row of H-shaped boxes, more boxes can be arranged side-by-side along the same length, allowing for the simultaneous firing of more objects. The length is limited by the kiln width.
[0100] In one embodiment, the male and female joint portions are arranged generally parallel to the support surface and / or generally perpendicular to one or more legs. For example, the male and female joint portions are arranged generally perpendicular to one or more legs, and optionally, generally parallel to the support surface. In this embodiment, the directions for engaging and disengaging the male and female joint portions are also generally parallel to the support surface and / or also generally perpendicular to one or more legs. For example, the directions for engaging and disengaging the male and female joint portions are also generally perpendicular to one or more legs, and optionally, also generally parallel to the support surface.
[0101] In one embodiment, the male and female engagement portions are located on opposing side surfaces. In another embodiment, the male and female engagement portions are located on opposing side surfaces, and the female engagement portion is included in one or more legs, which are located on only a single side surface, while the male engagement portion is arranged on a side surface opposite to the side surface where the legs are located.
[0102] Other embodiments of the T-shaped box according to this disclosure are described below.
[0103] Furthermore, the embodiments of the T-shaped box according to this disclosure are also applicable to the H-shaped box defined in this disclosure, unless the context otherwise requires and / or explicitly mentions the opposite.
[0104] Components
[0105] As described above, according to the second aspect, a kiln furniture assembly for supporting ceramic objects to be fired in a kiln is provided, comprising:
[0106] a) one or more kiln furniture T-boxes as described in the first aspect; and
[0107] b) One or more kiln furniture H-boxes, including:
[0108] i) Support structure, including:
[0109] - One or two support surfaces for supporting one or more ceramic objects to be fired; and
[0110] -Side surface;
[0111] ii) One or more legs located on each of the two opposing side surfaces; and
[0112] iii) At least one of one or more legs on each of two opposing side surfaces includes one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of symmetrical shape;
[0113] At least one T-shaped box and at least one H-shaped box are connected by the engagement of their male and female joints.
[0114] The embodiments of the T-shaped box according to this disclosure are also embodiments of the components according to this disclosure, and vice versa.
[0115] As described above regarding the first aspect, a large number of T-shaped boxes can be arranged side by side, and the male joint of the outermost T-shaped box in this arrangement can be connected to an H-shaped box to provide the necessary stability so that it can stand on the reinforced support point of the kiln car. Although the H-shaped box may still be prone to wear or breakage, with the above-described components, all but one box in a row of H-shaped boxes can be replaced by a T-shaped box according to this disclosure. Thus, for example, three individual H-shaped boxes arranged adjacent to each other (such as...) Figure 2a (As shown) can be replaced by an assembly comprising one H-shaped box and two T-shaped boxes, wherein the T-shaped boxes are attached to each side of the H-shaped box, as shown. Figure 2b (before the male and female joints are joined) and Figure 2c (As shown after the male and female joints are joined). Two T-shaped boxes can also be arranged on one side of the H-shaped box. Of course, depending on the size of the kiln, more T-shaped boxes can be connected to such components.
[0116] In one embodiment, the boxes are arranged to allow unrestricted thermal expansion of each male and female joint when heated to up to 1230°C. A gap exists between the end of each male joint of the T-box and the end of each female joint of the adjacent box, allowing for unrestricted thermal expansion. Therefore, before firing in the kiln, the T-boxes are arranged such that they can, in principle, move further toward adjacent boxes. If the boxes move, a gap remains between the side surface of the T-box with the male joint and the adjacent box. As described above, during firing in the kiln, each box expands faster than the kiln car. Therefore, during thermal expansion, the male and female joints of the two connected boxes expand toward each other. Due to the gap between the male and female joints, they can expand unrestricted. Thermal expansion does not cause the two connected boxes to push each other apart, thus avoiding friction between the support legs of the boxes resting on the kiln car's reinforcing rest and the reinforcing rest point. As described above, such friction would lead to undesirable wear and breakage. Furthermore, once the target temperature is reached, the box typically reaches its final thermal expansion before the kiln car does. This is because the box has a smaller thermal mass compared to the kiln car. However, the final thermal expansion of the kiln car is usually higher than that of the box. Therefore, once the box reaches its final thermal expansion, the kiln car is usually still expanding, causing the kiln car's reinforcing supports to shift, which in turn causes the legs of the box standing on the kiln car to move away from each other. However, the legs of the T-shaped box are not forced to move relative to the kiln car's reinforcing supports. Therefore, since the male joint can move freely within the female joint as described above, no friction is generated between its legs and these reinforcing supports.
[0117] The necessary space between two boxes connected by their male and female joints allows these joints to expand thermally without restriction when heated to temperatures up to 1230°C, a fact easily determined by a person skilled in the art, for example, based on the dimensions of the boxes, the material of the boxes, and the highest firing temperature of the boxes in the kiln. Furthermore, these boxes are typically arranged by means of devices including mechanisms for establishing a fixed distance between two adjacent boxes, thereby ensuring that the boxes according to this disclosure are arranged with the necessary space between them.
[0118] In another scenario, if the T-box is inserted until its end reaches the far surface of the female joint of an adjacent box (e.g., another T-box or H-box), the T-box cannot move further toward the adjacent box before firing in the kiln. As mentioned above, during firing in the kiln, each box expands faster than the kiln car. Therefore, the two connected boxes will push against each other, resulting in friction between the box's legs resting on the kiln car's reinforced resting point and this reinforced resting point.
[0119] In one embodiment, the thermal expansion is approximately 0.15% or more, for example, approximately 0.20% or more, or approximately 0.25% or more, based on the dimensions of the T-box. Typically, the thermal expansion is less than 0.50% based on the dimensions of the T-box. It is well known in the art that kiln furniture boxes expand in all directions during heating. Therefore, percentage values based on the dimensions of the T-box are given. In this disclosure, thermal expansion represents the total increase in the direction in which thermal expansion is measured.
[0120] According to this disclosure, thermal expansion is measured on a Netsch DIL 402PC according to EN 821-1 1998. Typically, a 5×5×50mm section is cut from the box. 3 The thermal expansion of the samples was measured at a heating rate of 5°C / min between 20°C and 1000°C.
[0121] In most cases, the orientation of the boxes is also the orientation in which the boxes are connected via male and female joints. In this disclosure, thermal expansion in the orientation of the boxes is particularly important because, during thermal expansion, the side containing one or more male joints of the support surface of the T-shaped box moves toward the adjacent box to which these male joints are connected. Therefore, in one embodiment, the boxes are arranged at a distance from each other such that (i) before thermal expansion, the male joints are partially inserted, but not fully inserted; and (ii) during the contraction period of thermal expansion and subsequent cooling, the male joints do not reach a fully inserted position.
[0122] For example, in the case of a T-shaped box with a width of 40cm, using cordierite as the box material, the thermal expansion is approximately 1.2mm when heated from 25°C to 1230°C. Therefore, in this example, at 25°C, the male joint of the T-shaped box is not fully inserted into the corresponding female joint, but is located at least approximately 3mm away from the fully inserted position when viewed from the direction of the rows of boxes.
[0123] In one embodiment, the number of kiln furniture T-boxes is the same as or greater than the number of kiln furniture H-boxes; for example, the number of kiln furniture T-boxes is at least about twice, or at least about four times, or at least about six times the number of kiln furniture H-boxes. The total number of boxes in the components according to this disclosure is limited by the kiln size. Therefore, the number of kiln furniture T-boxes can be odd or even.
[0124] In one embodiment, the number of kiln furniture H-type boxes is n, and the number of kiln furniture T-type boxes is a·n, where a and n are integers greater than zero and can be odd or even. In a variant of this embodiment, n is at least 1, or at least 2, or at least 3, and a is at least 2, or at least 4, or at least 6.
[0125] In one embodiment, the number x of T-boxes attached to one side of each H-box and the number y of T-boxes attached to the opposite side of each H-box satisfy the relationship x = y ± 3, or x = y ± 2, or x = y ± 1. This embodiment provides an additional advantage: even in the worst-case scenario of one or more T-boxes failing, for example, in the event that all male joints of the T-boxes break or the support itself breaks, and the assembly subsequently collapses, the assembly will not come into contact with the kiln wall. Contact with the kiln wall would require undesirable and unnecessary maintenance of the kiln.
[0126] A T-shaped box connected to one side of an H-shaped box may be different from a T-shaped box connected to the other side of the same H-shaped box. Figure 3a (before connection) and Figure 3b An example of this assembly is shown in (after connection). Different T-shaped boxes are used on each of the two sides of the H-shaped box, which allows for the use of different T-shaped boxes even when the structure of the ceramic object to be fired is complex, such as when there should be protrusions and / or notches on the supporting surface (as per [reference]). Figure 4 The roof tiles shown can also be arranged in the same orientation on each box to accommodate ceramic objects to be fired in the kiln.
[0127] In one embodiment, the legs of the T-shaped box according to the first aspect and the legs of the H-shaped box defined in the second aspect are shaped to allow kiln furniture boxes to be stacked one on top of the other to form blades. Such a mechanism / apparatus is well known in the art for the H-shaped box, and such a mechanism / apparatus is also applicable to the T-shaped box of this disclosure.
[0128] In one embodiment, the kiln furniture assembly includes a plurality of H-shaped boxes and a plurality of T-shaped boxes, wherein at least one T-shaped box is connected to each H-shaped box by means of the engagement of its male and female joints, thereby forming rows. Each row includes one H-shaped box and at least one T-shaped box, and at least two of these rows are stacked one on top of the other to form blades. The number of rows stacked one on top of the other is not particularly limited in itself, but is limited by the kiln height. In a variation of this embodiment, the H-shaped boxes in each row are directly stacked one on top of the other.
[0129] T-shaped boxes and H-shaped boxes
[0130] Other embodiments of the T-shaped box and the H-shaped box as defined in this disclosure will now be described. These embodiments apply to all aspects and implementations of this disclosure unless the context otherwise requires and / or mentions the contrary.
[0131] The corresponding male and female joints are generally well known in the art and are not particularly limited in this application. Figure 5a, Figure 5b , Figure 5c , Figure 6a and Figure 6b The separate boxes are shown. Figure 5a , Figure 5c and Figure 6a ) and the connecting box ( Figure 5b and Figure 6b Examples of the male and female joints on the image are shown. The male joint is indicated by a solid arrow, and the female joint is indicated by a dashed arrow. For ease of observation, in... Figure 6a In the middle, only the female engagement part is shown on the rightmost box. Figure 7a and Figure 7b Other examples of male and female joints are shown in the figure. Figure 7b The dashed line in the diagram represents the engagement of the female and male joints (indicated by an arrow). Figures 2a to 3b More examples are shown in the figure.
[0132] In one embodiment, the support of the kiln furniture box is perforated. This reduces the box's thermal mass and improves airflow. Furthermore, it facilitates handling the box using specialized transport equipment.
[0133] In one embodiment, the support of the kiln furniture box is perforated, and the ratio of the area of the perforations in the support to the area of the box is at least about 0.20, for example at least about 0.30 or at least about 0.40. Typically, this ratio is no higher than 0.60.
[0134] The area of the perforation in the support is the area of the perforation when viewed perpendicularly to the support surface, and the area of the box is the area covered by the circumference of the box when viewed perpendicularly to the support surface.
[0135] In another embodiment, the support of the kiln tool box is not perforated.
[0136] In one embodiment, the legs of the kiln tool box are shaped to allow the kiln tool boxes to be stacked one on top of the other.
[0137] In one embodiment, each box is flip-up. A flip-up box is a box having two opposing support surfaces. These two support surfaces are generally parallel to each other. These two support surfaces can be used to support different ceramic objects, thereby increasing the versatility of the box and reducing or eliminating the need to store different boxes for different ceramic objects to be fired. Alternatively, the two support surfaces can also be used to support the same ceramic object.
[0138] If the box is reversible and perforated, determine the ratio of the area of the perforation in the support to the area of the box for the two support surfaces as defined above, then add the two values together and divide by two.
[0139] In one embodiment, the support surface of the kiln furniture box has a generally rectangular shape. In another embodiment, the box is flip-up, and the two support surfaces of each box have a generally rectangular shape.
[0140] In one embodiment, the support of the kiln tool box is perforated, and the support surface has a generally rectangular shape.
[0141] In another embodiment, the support of the kiln tool box is not perforated, and the support surface has a generally rectangular shape.
[0142] In one embodiment, the kiln tool box has flat upper and lower surfaces as its legs.
[0143] In one embodiment, the support surface of the kiln tool box is designed to receive one or more inserts to adapt their shape to the product to be fired.
[0144] The kiln furniture boxes used in this disclosure can be made of any material suitable for use in a kiln, as is commonly known to those skilled in the art. They can be made of ceramic materials, such as ceramic refractory materials. As mentioned above, the ratio of the mass of the kiln furniture to the mass of the product to be fired should be minimized as much as possible. Therefore, it is advantageous to use lightweight ceramic materials (e.g., materials comprising a ceramic matrix and ceramic microspheres), as disclosed in the international patent application published under WO2009 / 077589A1, the contents of which are incorporated herein by reference in their entirety. In one embodiment, according to the invention, the material of the kiln furniture box may include ceramics, such as aluminosilicate ceramics, cordierite, mullite, and silicon carbide and / or any combination thereof. The kiln furniture boxes may be made of the same material to avoid differences in the coefficients of thermal expansion between the materials, which would lead to increased wear and strain on the mating male and female joints, thereby reducing the stability of the entire assembly and shortening the service life of the kiln furniture box.
[0145] Methods for forming kiln furniture boxes are known in the art. These methods can be equally applied to the T-shaped boxes of this disclosure.
[0146] Methods for forming kiln furniture components
[0147] As described above, according to a third aspect, a method is provided for forming a kiln furniture assembly for supporting an object to be fired in a kiln, the method comprising the following steps:
[0148] a) Provide at least one T-shaped box according to this disclosure;
[0149] b) Provide at least one H-type box as defined in this disclosure;
[0150] c) The T-shaped box and the H-shaped box are connected by joining the male and female joints of a T-shaped box and an H-shaped box to form a row;
[0151] d) Optionally, the arrangement in step c) can be expanded by connecting other T-shaped boxes to the T-shaped boxes and / or H-shaped boxes in step c);
[0152] e) Optionally, repeat steps c) and d) (if step d) once or several times to form (a row) other rows;
[0153] f) If step e) exists, two or more rows may be stacked one on top of the other to form a blade.
[0154] The embodiments of the T-type and H-type boxes according to this disclosure are also according to the embodiments of the third aspect, and vice versa.
[0155] Furthermore, the implementation of the components disclosed herein is also based on the implementation of the method of the third aspect, and vice versa.
[0156] In the above method, the rows formed in step c) and optionally expanded in step d) or each row includes only one H-shaped box.
[0157] If in step f) two or more rows are stacked one on top of the other to form a blade, typically, the H-shaped boxes in each row are directly stacked one on top of the other.
[0158] In one embodiment, the housing is arranged to allow each male and female engagement portion to undergo unrestricted thermal expansion when heated to temperatures up to 1230°C. This has been described in detail above with respect to the second aspect and applies with necessary modifications.
[0159] In one embodiment, the thermal expansion is approximately 0.15% or more, for example, approximately 0.20% or more, or approximately 0.25% or more, based on the dimensions of the T-box. Typically, the thermal expansion is less than 0.50% based on the dimensions of the T-box. It is well known in the art that kiln furniture expands in all directions during heating. Therefore, percentage values based on the dimensions of the T-box are given. In this disclosure, thermal expansion represents the total increase in the direction in which thermal expansion is measured.
[0160] The length of the row formed by the method of this disclosure is not limited in itself. Therefore, in principle, the length can be infinite. However, as explained above, the size of the row used depends on the size of the kiln. Similarly, the number of rows that can be stacked one on top of the other also depends on the size of the kiln. Therefore, the method of this disclosure is applicable both to forming a single row consisting of only one T-box and one H-box, and to forming multiple rows (in step e), each row including multiple T-boxes (in step d), wherein the multiple rows are stacked one on top of the other to form blades. Therefore, the number of other T-boxes used in step d) and the number of rows formed in step e) are selected based on the size of the kiln. Those skilled in the art can easily determine these quantities based on the kiln used. In one embodiment, optional steps d), e), and / or f) are repeated according to the size of the kiln.
[0161] For example, the number of T-boxes used in step d) is at least one, or at least three, or at least five, and / or steps c) and d) are repeated at least once, or at least three times, or at least five times.
[0162] In one implementation, step e) is present, and the method further includes the following steps:
[0163] e1) Arrange the two or more rows formed in step e) parallel to each other in the horizontal direction.
[0164] In this embodiment, in step f), optionally, in step e1), other rows are stacked on top of one or more rows arranged parallel to each other in the horizontal direction to form at least one blade. For example, in step e1), other rows are stacked on top of each row arranged parallel to each other in the horizontal direction to form multiple blades arranged parallel to each other in the horizontal direction.
[0165] Complete set of components
[0166] As described above, according to the fourth aspect, a set of components for supporting an object to be fired in a kiln is provided, including:
[0167] a) One or more kiln furniture T-boxes according to this disclosure;
[0168] b) One or more kiln furniture H-type boxes as defined in this disclosure.
[0169] The embodiments of the T-shaped box and H-shaped box according to this disclosure are also according to the embodiments of the fourth aspect, and vice versa.
[0170] Furthermore, the implementation of the components and methods disclosed herein is also based on the implementation of the fourth aspect, and vice versa.
[0171] In one embodiment, the number of kiln furniture T-boxes is the same as or greater than the number of kiln furniture H-boxes. For example, the number of kiln furniture T-boxes may be at least about two times, at least about four times, or at least about six times the number of kiln furniture H-boxes. The total number of boxes in the components according to this disclosure is limited by the kiln size. Therefore, the number of kiln furniture T-boxes can be odd or even.
[0172] In one embodiment, the number of kiln furniture H-type boxes is n, and the number of kiln furniture T-type boxes is a·n, where a and n are integers greater than zero and can be odd or even. In a variant of this embodiment, n is at least 1, or at least 2, or at least 3, and a is at least 2, or at least 4, or at least 6.
[0173] In one embodiment, the assembly includes a plurality of T-shaped boxes and a plurality of H-shaped boxes, wherein at least one T-shaped box is connected to each H-shaped box by means of engagement of their male and female engagement portions.
[0174] use
[0175] As described above, according to a fifth aspect, there is a use for a kiln furniture T-box for supporting one or more ceramic objects to be fired in a kiln, the kiln furniture T-box comprising:
[0176] a) Support structure, including:
[0177] - One or two support surfaces for supporting one or more ceramic objects to be fired; and
[0178] -Side surface;
[0179] b) One or more legs located on a side surface, wherein the one or more legs are located on only a single side surface; and
[0180] c) At least one of one or more legs comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and
[0181] d) One or more male joint portions located on the side surface, for a female joint portion of the shape corresponding to another kiln furniture box.
[0182] The embodiments of the T-type and H-type boxes according to this disclosure are also according to the embodiments of the fourth aspect, and vice versa.
[0183] Furthermore, the implementation of the components and methods disclosed herein is also based on the implementation of the fifth aspect, and vice versa.
[0184] In this disclosure, the ceramic object to be fired can be a clay roofing tile.
[0185] According to this disclosure, T-shaped boxes can be used in existing kilns to replace the commonly used arrangement of side-by-side H-shaped boxes. Furthermore, according to this disclosure, T-shaped boxes can save space and allow for both odd and even numbers of boxes to be arranged in a row, thereby enabling the most efficient use of available space in the kiln.
[0186] In some implementations, various aspects of this application may have one or more of the following effects:
[0187] - Reduce the thermal mass of the box;
[0188] - Reduce wear and tear and breakage of the box;
[0189] - Reduce box costs;
[0190] - By narrowing the arrangement of objects to be fired in the kiln, the cost-effectiveness of the process can be improved.
[0191] -The blades of the box are more stable because the box is connected via the male and female joints.
[0192] To avoid ambiguity, this application relates to the subject matter described in the following numbered paragraphs.
[0193] 1. A kiln furniture T-shaped box for supporting ceramic objects to be fired in a kiln, comprising:
[0194] a) Support structure, including:
[0195] - One or two support surfaces for supporting one or more ceramic objects to be fired; and
[0196] -Side surface;
[0197] b) One or more legs located on a side surface, wherein the one or more legs are arranged only on a single side surface; and
[0198] c) At least one of one or more legs comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and
[0199] d) One or more male joint portions located on the side surface, for a female joint portion of the shape corresponding to another kiln furniture box.
[0200] 2. According to the kiln furniture T-box of paragraph 1, the male and female joints are arranged generally parallel to the support surface and / or generally perpendicular to one or more legs.
[0201] 3. For any of the aforementioned numbered paragraphs, one or more of the kiln furniture T-boxes are removable.
[0202] 4. For any of the kiln furniture T-boxes in the aforementioned numbered paragraphs, one or more of the legs are non-removable.
[0203] 5. A kiln furniture T-shaped box according to any of the aforementioned numbered paragraphs, wherein the male and female joint portions are arranged on opposite side surfaces.
[0204] 6. A kiln furniture assembly for supporting ceramic objects to be fired in a kiln, comprising:
[0205] a) One or more kiln furniture T-boxes according to any of the preceding numbered paragraphs; and
[0206] b) One or more kiln furniture H-boxes, including:
[0207] i) Support structure, including:
[0208] - One or two support surfaces for supporting one or more ceramic objects to be fired; and
[0209] -Side surface;
[0210] ii) One or more legs located on each of the two opposing side surfaces; and
[0211] iii) At least one of one or more legs on each of two opposing side surfaces includes one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion of one or more male engagement portions of another kiln furniture box that are symmetrical in shape;
[0212] At least one T-shaped box and at least one H-shaped box are connected by means of the engagement of their male and female joints.
[0213] 7. According to the kiln furniture assembly of paragraph 6, wherein the boxes are arranged to allow each male and female joint to undergo unrestricted thermal expansion when heated to temperatures up to 1230°C.
[0214] 8. According to the kiln furniture assembly in paragraph 7, the thermal expansion is approximately 0.15% or more based on the dimensions of the T-box.
[0215] 9. According to any of paragraphs 6 to 8, the number of kiln furniture T-boxes is the same as or greater than the number of kiln furniture H-boxes.
[0216] 10. Based on any of paragraphs 6 to 8, the number of kiln furniture H-type boxes is n, and the number of kiln furniture T-type boxes is a·n, where a and n are integers greater than zero.
[0217] 11. According to any of the aforementioned numbered paragraphs 6 to 10, the number of T-shaped boxes x attached to one side of each H-shaped box and the number of T-shaped boxes y attached to the opposite side of each H-shaped box satisfy the relationship x = y ± 3.
[0218] 12. A kiln furniture assembly according to any of paragraphs 6 to 11, comprising a plurality of H-shaped boxes and a plurality of T-shaped boxes, wherein at least one T-shaped box is connected to each H-shaped box by means of the engagement of their male and female joints, thereby forming a row, each row comprising one H-shaped box and at least one T-shaped box.
[0219] 13. According to the kiln furniture assembly of paragraph 12, wherein at least two rows of these rows are stacked one on top of the other to form blades.
[0220] 14. A kiln furniture T-box according to any of paragraphs 1 to 5, or a kiln furniture assembly according to any of paragraphs 6 to 13, wherein the supporting surface of the kiln furniture box is perforated and / or has a generally rectangular shape.
[0221] 15. A kiln furniture T-box according to any of paragraphs 1 to 5, or a kiln furniture assembly according to any of paragraphs 6 to 13, wherein the supporting surface of the kiln furniture box is not perforated and the supporting surface has a generally rectangular shape.
[0222] 16. A kiln furniture T-box according to any of paragraphs 1 to 5, 14 or 15, or a kiln furniture assembly according to any of paragraphs 6 to 15, wherein the legs of the kiln furniture box are shaped to allow the kiln furniture boxes to be stacked one on top of the other.
[0223] 17. A kiln furniture T-box according to any of paragraphs 1 to 5 or 14 to 16, or a kiln furniture assembly according to any of the aforementioned paragraphs 6 to 16, wherein each box is flip-up.
[0224] 18. A method of forming a kiln furniture assembly for supporting an object to be fired in a kiln, the method comprising the steps of:
[0225] a) Provide at least one T-box according to any of the numbered paragraphs 1 to 17;
[0226] b) Provide at least one H-shaped box defined in any of paragraphs 6 to 17;
[0227] c) The T-shaped box and the H-shaped box are connected by joining the male and female joints of a T-shaped box and an H-shaped box to form a row;
[0228] d) Optionally, the arrangement in step c) can be expanded by connecting other T-shaped boxes to the T-shaped boxes and / or H-shaped boxes in step c);
[0229] e) Optionally, repeat steps c) and d) (if step d) once or several times to form (a row) other rows;
[0230] f) If step e) exists, two or more rows may be stacked one on top of the other to form a blade.
[0231] 19. The method according to paragraph 18, wherein the box is arranged to allow each male and female joint to undergo unrestricted thermal expansion when heated to a temperature up to 1230°C.
[0232] 20. According to the method in paragraph 19, where the thermal expansion is approximately 0.15% or more based on the dimensions of the T-box.
[0233] 21. A set of components for supporting an object to be fired in a kiln, comprising:
[0234] a) One or more kiln furniture T-boxes according to any of the numbered paragraphs 1 to 17;
[0235] b) One or more kiln furniture H-type boxes as defined in any of paragraphs 6 to 17.
[0236] 22. The assembly according to paragraph 21 includes a plurality of T-shaped boxes and a plurality of H-shaped boxes, wherein at least one T-shaped box is connected to each H-shaped box by means of engagement of their male and female engagement portions.
[0237] 23. Use of a kiln furniture T-shaped box for supporting one or more ceramic objects to be fired in a kiln, said T-shaped box comprising:
[0238] a) Support structure, including:
[0239] - One or two support surfaces for supporting one or more ceramic objects to be fired; and
[0240] -Side surface;
[0241] b) One or more legs located on a side surface, wherein the one or more legs are arranged only on a single side surface; and
[0242] c) At least one of one or more legs comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and
[0243] d) One or more male joint portions located on the side surface, for a female joint portion of the shape corresponding to another kiln furniture box.
[0244] Example
[0245] Figure 8a and Figure 8b Two views are shown of the H-shaped box, the T-shaped box, and two identical roof tiles awaiting firing in the kiln before the boxes are connected. Figure 9a and Figure 9b Two views are shown of multiple rows of T-shaped boxes connected to H-shaped boxes, with the T-shaped boxes stacked one on top of the other and loaded with roofing tiles to be fired.
[0246] As can be seen in these figures, the number of ceramic objects that can be fired simultaneously in the kiln can be increased because the T-shaped box occupies less space compared to the H-shaped box. This reduces the cost per ceramic object. Furthermore, the thermal mass of the box is reduced due to the decreased number of supports. Additionally, by arranging the boxes to allow unrestricted thermal expansion of each male and female joint during heating (as described in detail above), wear and breakage are reduced because the legs of the T-shaped box are not forced to move relative to the reinforced resting points of the kiln car.
[0247] Figure 10 The image shows a standard H-shaped box after use, where the legs are broken. Figure 11 The image shows a box according to the invention after use, where the edges of the legs remain sharp / pointed. Therefore, the box's lifespan is extended, allowing for longer use before replacement is needed, thereby further reducing costs.
Claims
1. A kiln furniture T-shaped box for supporting ceramic objects to be fired in a kiln, the kiln furniture T-shaped box comprising: a) A support body, the support body comprising: - One or two support surfaces for supporting one or more ceramic objects to be fired; and - Side surface; b) One or more legs located on a side surface, wherein the one or more legs are arranged only on a single side surface; c) At least one of the one or more legs, comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and d) One or more male engagement portions located on the side surface, the one or more male engagement portions being for a female engagement portion of another kiln furniture box that is symmetrical in shape.
2. The kiln furniture T-shaped box according to claim 1, wherein: (i) The male joint portion and the female joint portion are arranged parallel to the support surface and / or perpendicular to the one or more legs; And / or (ii) The male and female joint portions are arranged on opposite side surfaces.
3. The kiln furniture T-shaped box according to claim 1 or 2, wherein, The supporting surface of the kiln furniture T-shaped box is perforated and / or has a rectangular shape.
4. The kiln furniture T-shaped box according to claim 1 or 2, wherein, The supporting surface of the kiln furniture T-shaped box has no perforations and has a rectangular shape.
5. The kiln furniture T-shaped box according to claim 1 or 2, wherein, The legs of the kiln furniture T-box are shaped to allow the kiln furniture T-boxes to be stacked one on top of the other.
6. The kiln furniture T-shaped box according to claim 1 or 2, wherein, Each kiln tool T-box is flip-up.
7. A kiln furniture assembly for supporting ceramic objects to be fired in a kiln, the kiln furniture assembly comprising: a) One or more kiln furniture T-shaped boxes according to any one of claims 1 to 6; as well as b) One or more kiln furniture H-boxes, said kiln furniture H-boxes comprising: i) Support body, wherein the support body of the kiln furniture H-shaped box comprises: - One or two support surfaces of the kiln furniture H-shaped box for supporting one or more ceramic objects to be fired; and - Side surface; ii) One or more legs located on each of the two opposite side surfaces of the kiln furniture H-shaped box; and iii) At least one of the one or more legs on each of the two opposite side surfaces of the kiln furniture H-shaped box, including one or more holes and / or recesses, the one or more holes and / or recesses being adapted to serve as a female engagement portion for one or more male engagement portions of another kiln furniture box with a shape corresponding to the male engagement portion; At least one T-shaped box and at least one H-shaped box are connected by the engagement of their male and female joints.
8. The kiln furniture assembly according to claim 7, wherein, The kiln furniture H-shaped box and the kiln furniture T-shaped box are arranged to allow each male and female joint to undergo unrestricted thermal expansion when heated to a temperature up to 1230°C, wherein the thermal expansion is greater than 0.15% based on the size of the T-shaped box.
9. The kiln furniture assembly according to claim 7 or 8, wherein, The number of T-shaped kiln furniture boxes is the same as or greater than the number of H-shaped kiln furniture boxes.
10. The kiln furniture assembly according to claim 7 or 8, wherein, The number of H-type kiln furniture boxes is n, and the number of T-type kiln furniture boxes is a. n, where a and n are integers greater than zero.
11. The kiln furniture assembly according to claim 7 or 8, wherein, The supporting surface of the kiln furniture H-shaped box is perforated and / or has a rectangular shape.
12. The kiln furniture assembly according to claim 7 or 8, wherein, The supporting surface of the H-shaped kiln tool box has no perforations and has a rectangular shape.
13. The kiln furniture assembly according to claim 7 or 8, wherein, The legs of the kiln furniture H-shaped box are shaped to allow the kiln furniture H-shaped boxes to be stacked one on top of the other.
14. The kiln furniture assembly according to claim 7 or 8, wherein, Each kiln tool H-shaped box is flip-up.
15. A method for forming a kiln furniture assembly for supporting an object to be fired in a kiln, the method comprising the steps of: a) Provide at least one kiln furniture T-shaped box according to any one of claims 1 to 6; b) Provide at least one kiln furniture H-type box, wherein the kiln furniture H-type box comprises: i) Support body, wherein the support body of the kiln furniture H-shaped box comprises: - One or two support surfaces of the kiln furniture H-shaped box for supporting one or more ceramic objects to be fired; and - Side surface; ii) One or more legs located on each of the two opposite side surfaces of the kiln furniture H-shaped box; and iii) At least one of the one or more legs on each of the two opposite side surfaces of the kiln furniture H-shaped box, including one or more holes and / or recesses, wherein the one or more holes and / or recesses of the kiln furniture H-shaped box are adapted to serve as female joints for one or more male joints of a shape compatible with another kiln furniture box; c) A row is formed by connecting the T-shaped box and the H-shaped box by joining the male and female joints of the T-shaped box and the H-shaped box.
16. The method according to claim 15, further comprising: d) Expand the row in step c) by connecting other T-shaped boxes to the T-shaped box and / or the H-shaped box in step c).
17. The method according to claim 16, further comprising: e) Repeat step c) and repeat step d) once or several times to form other arrangements.
18. The method according to claim 17, further comprising: f) Stack two or more rows together, one on top of the other, to form a stack.
19. The method according to claim 15, wherein, The kiln furniture H-shaped box and the kiln furniture T-shaped box are arranged to allow each male and female joint to undergo unrestricted thermal expansion when heated to a temperature up to 1230°C, wherein the thermal expansion is greater than 0.15% based on the size of the T-shaped box.
20. A set of components for supporting an object to be fired in a kiln, the set of components comprising: a) One or more kiln furniture T-shaped boxes according to any one of claims 1 to 6; as well as b) One or more kiln furniture H-boxes, wherein the kiln furniture H-boxes comprise: i) Support body, wherein the support body of the kiln furniture H-shaped box comprises: - One or two support surfaces of the kiln furniture H-shaped box for supporting one or more ceramic objects to be fired; and - Side surface; ii) One or more legs located on each of the two opposite side surfaces of the kiln furniture H-shaped box; and iii) At least one of the one or more legs on each of the two opposite side surfaces of the kiln furniture H-shaped box, including one or more holes and / or recesses, wherein the one or more holes and / or recesses of the kiln furniture H-shaped box are adapted to serve as female joints of one or more male joints of a shape compatible with another kiln furniture box.
21. The complete set of components according to claim 20, wherein the complete set of components comprises a plurality of T-shaped boxes and a plurality of H-shaped boxes, wherein, At least one T-shaped box is connected to each H-shaped box by means of the engagement of their male and female joints.
22. Use of a kiln furniture T-box to support one or more ceramic objects to be fired in a kiln, said kiln furniture T-box comprising: a) A support body, the support body comprising: - One or two support surfaces for supporting one or more ceramic objects to be fired; and - Side surface; b) One or more legs located on a side surface, wherein the one or more legs are arranged only on a single side surface; c) At least one of the one or more legs, comprising one or more holes and / or recesses, said one or more holes and / or recesses being adapted to serve as a female engagement portion for a male engagement portion of another kiln furniture box of corresponding shape; and d) One or more male engagement portions located on the side surface, the one or more male engagement portions being for a female engagement portion of another kiln furniture box with a corresponding shape.
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