CN219103713U - Firing supporting plate and ceramic firing equipment - Google Patents
Firing supporting plate and ceramic firing equipment Download PDFInfo
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- CN219103713U CN219103713U CN202223365784.7U CN202223365784U CN219103713U CN 219103713 U CN219103713 U CN 219103713U CN 202223365784 U CN202223365784 U CN 202223365784U CN 219103713 U CN219103713 U CN 219103713U
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Abstract
The utility model discloses a burning bearing plate and ceramic burning equipment comprising the same, wherein the burning bearing plate comprises a burning bearing plate body, the upper surface of the burning bearing plate body is provided with vent units, the vent units adopt a plurality of groups, each group of vent units are respectively arranged in a radial direction outwards by taking a central hole of the burning bearing plate body as a center, each group of vent units comprises a plurality of vent holes, the vent holes positioned in the same group of vent units are distributed on the upper surface of the burning bearing plate body along a straight line, the lower surface of the burning bearing plate body is provided with a plurality of groups of radial grooves, the number of the groups of radial grooves is the same as that of the vent units, one group of radial grooves corresponds to one group of vent units in position, and each vent hole in each group of vent units is communicated with the corresponding radial groove. The firing supporting plate is beneficial to heat transfer and gas circulation in the ceramic firing process, reduces resistance between the ceramic blank body and the firing supporting plate body, and is beneficial to the shrinkage consistency of the ceramic blank body, thereby improving the sintering quality of the ceramic.
Description
Technical Field
The utility model relates to a setter plate and ceramic firing equipment comprising the setter plate.
Background
In the field of ceramic manufacture, a setter plate is required to be used as a carrier for carrying a ceramic blank in the process of high-temperature sintering. In the prior art, the structure of the firing support plate is single, the consistency of the temperature field and the flow field of the contact part and the non-contact part of the ceramic blank body and the firing support plate is poor, the uniformity of ceramic shrinkage is not facilitated, cracking and deformation are easily caused, and the sintering quality of the ceramic is affected.
In addition, in the ceramic firing process, certain requirements are placed on the high temperature resistance, durability and stability of the firing plate. The traditional setter plates are made of materials with the same materials as the ceramic green body, the processing cost is high, and the setter plates can bend along with the increase of sintering times, so that the service life of the setter plates is shortened.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art and provides a setter plate and ceramic firing equipment comprising the setter plate, wherein the setter plate is beneficial to heat transfer and gas circulation in the ceramic firing process, reduces the resistance of a contact surface between a ceramic blank body and a setter plate body, and is beneficial to the shrinkage consistency of the ceramic blank body, so that the sintering quality of ceramic is improved.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model provides a hold fever board, includes holds fever board body, the upper surface of holding fever board body is equipped with the air vent unit, the air vent unit adopts the multiunit, and each group air vent unit is outwards radial direction arrangement respectively with the centre bore of holding fever board body as the centre, and every group air vent unit includes a plurality of air vents, and the straight line distribution is followed to a plurality of air vents of same group air vent unit on the upper surface of holding fever board body, the lower surface of holding fever board body is equipped with multiunit radial groove, and each group radial groove is outwards radial direction arrangement respectively with the centre bore on the lower surface of holding fever board body for the hollow, the group number of radial groove with the group number of air vent unit is the same, and a set of radial groove is corresponding in the position with a set of air vent unit, and each air vent in every group air vent unit is linked together with its corresponding radial groove.
Preferably, in each group of vent units, the radial spacing between two adjacent vent units is the same, and the circumferential spacing between two adjacent vent units belonging to two adjacent groups of vent units is the same.
Preferably, the upper surface of the burning-supporting plate body is also provided with annular grooves, the annular grooves are arranged around the center of the burning-supporting plate body, the annular grooves are provided with a plurality of groups, the annular grooves of the plurality of groups are concentrically arranged, the interval between two adjacent groups of annular grooves is the same, and the vent holes in each group of vent hole units are intersected with the annular grooves.
Preferably, the thickness range of the burning bearing plate is 30-60 mm, the number of groups of annular grooves is 4-6 groups, the width range of each group of annular grooves is 4-10 mm, and the depth range is 10-20 mm.
Preferably, the lower surface of the burning bearing plate body is also provided with an atmosphere channel, and the atmosphere channel is intersected with the annular groove.
Preferably, two atmosphere channels are provided, and the two atmosphere channels are parallel to each other.
Preferably, the width of the atmosphere channel ranges from 80 mm to 120mm, and the depth ranges from 10mm to 20mm.
Preferably, the diameter of the vent hole ranges from 6 mm to 10mm, the width of the radial groove is the same as the diameter of the vent hole, and the depth of the radial groove ranges from 5 mm to 8mm.
Preferably, the firing plate body is made of graphite material.
The utility model also provides ceramic firing equipment, which comprises the crucible, the sintering furnace and the firing supporting plate, wherein the firing supporting plate is used for supporting the ceramic blank, the crucible is used for supporting the firing supporting plate and the ceramic blank, the furnace chamber of the sintering furnace is filled with inert gas, and the crucible in the furnace chamber is heated to fire the ceramic blank.
The firing plate comprises a firing plate body, wherein a plurality of vent holes are uniformly formed in the firing plate body and are communicated with radial grooves on the upper surface and the lower surface of the firing plate body, so that heat and gas in a sintering furnace can flow along the vent holes of the firing plate body in the ceramic firing process, the resistance of the contact surface of a ceramic blank body and the firing plate is reduced, the shrinkage consistency of the ceramic blank body is facilitated, and the ceramic sintering quality is improved.
Drawings
FIG. 1 is a top view of a setter plate of example 1 of the present utility model;
FIG. 2 is a bottom view of the setter plate of embodiment 1 of the present utility model;
FIG. 3 is a cross-sectional view taken along the A-A plane of FIG. 1;
fig. 4 is a schematic structural diagram of a setter plate and ceramic blank according to embodiment 1 of the present utility model.
In the figure: 1-a setter plate body, 2-vent holes, 3-annular grooves, 4-radial grooves, 5-atmosphere channels and 6-ceramic blanks.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent, and the embodiments described in detail, but not necessarily all, in connection with the accompanying drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
In the description of the present utility model, it should be noted that, the terms "upper" and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, and are merely for convenience and simplicity of description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "configured," "mounted," "secured," and the like are to be construed broadly and may be either fixedly connected or detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
The utility model provides a burning bearing plate, which comprises a burning bearing plate body, wherein the upper surface of the burning bearing plate body is provided with a plurality of groups of vent hole units, each group of vent hole units is arranged in a radial direction by taking a central hole on the upper surface of the burning bearing plate body as a center, each group of vent hole units comprises a plurality of vent holes, the vent holes of the same group of vent hole units are distributed on the upper surface of the burning bearing plate body along a straight line, the lower surface of the burning bearing plate body is provided with a plurality of groups of radial grooves, each group of radial grooves is arranged in a radial direction by taking the central hole on the lower surface of the burning bearing plate body as a center, the number of groups of radial grooves is the same as the number of groups of vent hole units, one group of radial grooves corresponds to one group of vent hole units in position, and each vent hole in each group of vent hole units is communicated with the corresponding radial groove.
The utility model also provides ceramic firing equipment, which comprises the crucible, the sintering furnace and the firing supporting plate, wherein the firing supporting plate is used for supporting the ceramic blank, the crucible is used for supporting the firing supporting plate and the ceramic blank, the furnace chamber of the sintering furnace is filled with inert gas, and the crucible in the furnace chamber is heated to fire the ceramic blank.
Example 1
As shown in fig. 1, 3 and 4, the present embodiment discloses a setter plate, which includes a setter plate body 1, the shape of the setter plate body 1 is circular, the diameter of the setter plate body is determined according to the size and shape of the ceramic blank to be fired, and the thickness of the setter plate body is preferably 40mm. The upper surface of the burning-supporting plate body 1 is provided with vent units, the vent units adopt a plurality of groups, each group of vent units is respectively arranged in a radial direction by taking a central hole on the upper surface of the burning-supporting plate body 1 as a center, specifically, each group of vent units comprises a plurality of vent holes 2, the plurality of vent holes 2 are arranged along the central direction of the burning-supporting plate towards the outer circumferential direction of the burning-supporting plate, namely, the plurality of vent holes 2 positioned on the same group of vent units are distributed on the upper surface of the burning-supporting plate body 1 along a straight line, the lower surface of the burning-supporting plate body 1 is provided with a plurality of groups of radial grooves 4, each group of radial grooves 4 are respectively arranged in a radial direction by taking a central hole on the lower surface of the burning-supporting plate body 1 as a center, the groups of the radial grooves 4 are the same as the groups of vent holes, and one group of radial grooves 4 are corresponding to one group of vent units in position, each vent hole 2 in each group of vent units is communicated with the corresponding radial groove 4, and the central hole on the upper surface of the burning-supporting plate body 1 is communicated with the radial grooves 4, so that the upper surface of the burning-supporting plate body is communicated with the lower surface of the burning-supporting plate body conveniently.
In this embodiment, in each group of vent units, the radial distance between two adjacent vent holes 2 is the same, and the circumferential distance between two adjacent vent holes 2 belonging to two adjacent groups of vent units is the same, that is, the central angles formed between two straight lines where the two adjacent groups of vent holes are located are the same, so that the vent holes 2 can be uniformly distributed on the setter plate body 1 in such an arrangement manner, thereby maximally increasing the gas flow area.
In this embodiment, the upper surface of the setter plate body 1 is further provided with an annular groove 3, the annular groove 3 is disposed around the center of the setter plate body 1, the annular groove 3 is concentric with the setter plate body 1, and the annular groove 3 is provided with multiple groups, the intervals between two adjacent groups of annular grooves 3 are the same, the vent holes 2 in each group of vent hole units are intersected with the annular groove 3, and the vent holes 2 in the annular groove 3 are used for communicating the annular groove 3 with the radial groove 4 below the annular groove 3 so as to ensure that gas can circulate along the annular groove 3.
In this embodiment, the number of groups of annular grooves 3 is preferably 4 to 6, the width of each group of annular grooves 3 is 4 to 10mm, and the depth is 10 to 20mm. Wherein the spacing between two adjacent groups of annular grooves 3 is the same.
In the firing process of the ceramic body 6, when the temperature in the sintering furnace is higher than 1200 ℃, the ceramic body 6 can shrink, but the setter plate cannot shrink along with the ceramic body 6, so that the setter plate can generate resistance (friction force) to the shrinkage of the ceramic in the shrinkage process of the ceramic body 6, so that the shrinkage of the ceramic body 6 is inconsistent, and the sintering quality of the ceramic body 6 is affected. The annular groove 3 is arranged to reduce the resistance of the ceramic blank 6 caused by shrinkage of the setter plate, and the contact surface of the ceramic blank 6 and the setter plate body 1 is circular because the ceramic blank 6 is integrally cylindrical, and the annular groove 3 is arranged on the contact surface of the ceramic blank 6 and the setter plate body 1, so that the ceramic blank 6 is fully and uniformly contacted with a sintering gas medium, and the friction force between the setter plate and the ceramic blank 6 is reduced, so that the ceramic blank 6 is uniformly shrunk in the firing process.
As shown in fig. 2, the lower surface of the setter plate body 1 is further provided with a hollowed-out atmosphere channel 5. The atmosphere channels 5 are two, the two atmosphere channels 5 are parallel to each other, and the radial grooves 4 are communicated with the atmosphere channels 5.
In this embodiment, the width of the atmosphere channel 5 is in the range of 80-120 mm and the depth is in the range of 10-20 mm. The atmosphere channel 5 forms two sections of chords of the setter plate body 1, and the atmosphere channel 5 is used for gas circulation and can be used as a contact position for transferring the ceramic green body 6, so that the ceramic green body 6 is prevented from being damaged due to direct transfer.
In this embodiment, the diameter of the vent hole 2 is in the range of 6-10 mm, the width of the radial groove 4 is the same as the diameter of the vent hole 2, so that the vent hole 2 is convenient to communicate with the radial groove 4, and the depth of the radial groove 4 is in the range of 5-8 mm.
In this embodiment, the firing plate body 1 is made of graphite material, the graphite material can bear high temperature of 1800 ℃, the firing plate is not easy to deform in the ceramic firing process, the firing plate of the graphite material has strong high temperature tolerance, long service life and low processing cost.
The use process of the setter plate in this embodiment is as follows:
firstly, cleaning scaling foreign matters in annular grooves 3, radial grooves 4 and vent holes 2 on the upper surface and the lower surface of a burning bearing plate body 1,
then, a layer of adhesive powder with uniform granularity is scattered on the upper surface of the burning-bearing plate body 1, the adhesive powder can be boron nitride powder, then the ceramic blank 6 is vertically placed on the upper surface of the burning-bearing plate body 1 and is positioned at the center of the burning-bearing plate body 1,
finally, the setter plate carrying the ceramic body 6 is steadily transported into the crucible and is sent into a hearth of the sintering furnace together with the crucible for sintering.
The setter plate can also be used as a transfer carrier for each procedure after the ceramic green body 6 is molded, so that the number of times that personnel directly contact the ceramic green body 6 is reduced, and the risk of damaging the ceramic green body 6 is reduced.
The setter plate in this embodiment includes setter plate body 1, uniformly be provided with a plurality of air vents 2 on the setter plate body 1, a plurality of air vents 2 communicate the radial groove 4 of upper surface and lower surface of setter plate body 1 for in ceramic firing process, be favorable to the gas circulation in the fritting furnace along the air vent 2 of setter plate body 1, the setter plate upper surface still is equipped with a plurality of ring channels 3 of interval uniformity for reduce ceramic body 6 and the resistance of setter plate contact surface, thereby promote ceramic sintering's quality. The lower surface of the burning bearing plate is also provided with a hollowed-out atmosphere passage 5 which can be used for transferring the contact position of the ceramic green body 6 when being used for gas circulation, so that the ceramic green body 6 is prevented from being damaged by direct transportation.
Example 2
The embodiment discloses a ceramic firing equipment, including crucible, fritting furnace, still include the setter plate in embodiment 1, the setter plate is used for bearing ceramic body 6, the crucible is used for bearing setter plate and ceramic body 6, is filled with inert gas in the furnace of fritting furnace, through heating the crucible in the furnace to fire ceramic body 6.
The ceramic firing equipment in the embodiment has simple structure, and in the firing process of the ceramic body 6, the heat and gas in the hearth of the sintering furnace can smoothly circulate on the firing bearing plate, so that the resistance received by the ceramic body 6 during shrinkage is reduced, the shrinkage consistency of the ceramic body is facilitated, and the sintering quality of the ceramic body 6 is further improved; and the firing plate in the ceramic firing equipment is made of graphite material, can stably resist the high temperature in the hearth of the sintering furnace, is not easy to deform, and has long service life and low processing cost.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present utility model, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the utility model, and are also considered to be within the scope of the utility model.
Claims (10)
1. The burning bearing plate comprises a burning bearing plate body (1), and is characterized in that the upper surface of the burning bearing plate body (1) is provided with vent units, the vent units adopt a plurality of groups, each group of vent units is respectively arranged in a radial direction outwards by taking a central hole on the upper surface of the burning bearing plate body (1) as the center,
each group of vent units comprises a plurality of vent holes (2), the plurality of vent holes (2) of the same group of vent units are distributed along a straight line on the upper surface of the burning bearing plate body (1),
the lower surface of the burning-bearing plate body (1) is provided with a plurality of groups of radial grooves (4), each group of radial grooves are respectively arranged in a radial direction outwards by taking a central hole on the lower surface of the burning-bearing plate body as a center, the number of the groups of radial grooves (4) is the same as that of the vent hole units, the radial grooves (4) and the vent hole units correspond in position, and each vent hole (2) in each vent hole unit is communicated with the corresponding radial groove (4).
2. The setter plate according to claim 1, wherein in each set of ventilation hole units the radial spacing between two adjacent ventilation holes (2) is the same,
the circumferential spacing between two adjacent vent holes (2) in two adjacent vent hole units is the same.
3. The setter plate as claimed in claim 1, wherein the upper surface of the setter plate body (1) is further provided with an annular groove (3) disposed around the center of the setter plate body (1),
the annular grooves (3) are provided with a plurality of groups of annular grooves which are concentrically arranged, the spacing between two adjacent groups of annular grooves (3) is the same,
the vent holes in each group of vent hole units are intersected with the annular groove.
4. The setter plate of claim 3, wherein the thickness of the setter plate ranges from 30 mm to 60mm,
the number of groups of the annular grooves (3) is 4-6, the width range of each group of the annular grooves (3) is 4-10 mm, and the depth range is 10-20 mm.
5. The setter plate according to claim 3, wherein the lower surface of the setter plate body (1) is further provided with an atmosphere passage (5),
the atmosphere channel is intersected with the annular groove.
6. The setter plate according to claim 5, characterized in that the atmosphere channels (5) are provided in two, the two atmosphere channels (5) being parallel to each other.
7. The setter plate according to claim 6, characterized in that the atmosphere channel (5) has a width in the range of 80-120 mm and a depth in the range of 10-20 mm.
8. The setter plate according to claim 1, characterized in that the diameter of the vent holes (2) ranges from 6 to 10mm, the width of the radial grooves (4) is the same as the diameter of the vent holes (2), and the depth of the radial grooves (4) ranges from 5 to 8mm.
9. The setter plate according to any of claims 1-8, characterized in that the setter plate body (1) is made of graphite material.
10. A ceramic firing apparatus comprising a crucible, a sintering furnace, and a firing plate according to any one of claims 1 to 9,
the firing plate is used for bearing a ceramic blank (6),
the crucible is used for holding the setter plate and the ceramic blank (6),
inert gas is filled in a hearth of the sintering furnace, and a crucible in the hearth is heated to fire the ceramic blank (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223365784.7U CN219103713U (en) | 2022-12-15 | 2022-12-15 | Firing supporting plate and ceramic firing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223365784.7U CN219103713U (en) | 2022-12-15 | 2022-12-15 | Firing supporting plate and ceramic firing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219103713U true CN219103713U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223365784.7U Active CN219103713U (en) | 2022-12-15 | 2022-12-15 | Firing supporting plate and ceramic firing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219103713U (en) |
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- 2022-12-15 CN CN202223365784.7U patent/CN219103713U/en active Active
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