A ceramic composite material distribution tray and a cavity mold for producing the same

Abstract

The utility model discloses a kind of ceramic composite material distribution tray, including ceramic preform and the metal matrix for wrapping ceramic preform, ceramic preform is provided with rough surface, the edge of ceramic preform is set as wave shape, the thickness of metal matrix wrapping ceramic preform is set as 6-8mm;Ceramic preform is uniformly distributed with multiple connecting holes, and the metal matrix is provided with connecting piece filled in connecting hole.The ceramic composite material distribution tray is provided with hard ceramic preform to bear most abrasion, which can reliably improve the service life of distribution tray.

Description

Technical Field

[0001] This utility model relates to the field of material distribution plate production, specifically to a ceramic composite material material distribution plate and a cavity mold for producing it. Background Technology

[0002] The material distribution plate, also known as the flow distribution plate, material distribution plate, or distribution plate, is a key component in the production line of aggregates, ores, building materials, etc. It is mainly used for the uniform distribution, guidance and buffering of materials.

[0003] In the production of D-line aggregate products, the distribution discs typically operate in harsh environments characterized by high wear, high impact, and high dust levels. Furthermore, the aggregates often contain high-hardness particles such as quartz, silicates, and metallic impurities. During conveying and distribution, these particles cause cutting, troweling, and impact wear on the disc surface. Moreover, the aggregates usually flow at high speeds during conveying and distribution; therefore, the distribution discs must withstand continuous impact loads, which can easily lead to surface fatigue spalling or crack propagation.

[0004] The current feeder disc is made of a single metal material, which has poor wear resistance and usually wears out after 8-9 days of use, requiring frequent replacement. Utility Model Content

[0005] The purpose of this invention is to provide a ceramic composite material distribution plate and a cavity mold for producing it. The ceramic composite material distribution plate is provided with a hard ceramic preform to bear most of the wear, which can reliably improve the service life of the distribution plate.

[0006] To achieve the above objectives, this utility model provides a ceramic composite material distribution plate, including a ceramic preform and a metal matrix for wrapping the ceramic preform. The ceramic preform has a rough surface, the edges of the ceramic preform are wavy, and the thickness of the metal matrix wrapping the ceramic preform is 6-8 mm.

[0007] The ceramic preform has multiple connecting holes evenly distributed on it, and the metal substrate is provided with connectors that fill the connecting holes.

[0008] Preferably, the ceramic composite material distribution plate has a mounting hole at its center, which is located in the metal substrate;

[0009] The edge of the ceramic composite material distribution plate is provided with positioning holes, which are located in the metal matrix.

[0010] This utility model also provides a cavity mold for producing the ceramic composite material distribution plate, wherein the inner cavity of the cavity mold is consistent with the shape of the ceramic composite material distribution plate, the ceramic preform is located in the inner cavity and fixedly connected to the cavity mold, and the ceramic preform and the cavity mold are concentrically arranged.

[0011] Preferably, the ceramic preform includes multiple ceramic components, which are assembled to form the ceramic preform, with gaps between adjacent ceramic components.

[0012] Preferably, the ceramic components are fixedly connected to the cavity mold by threaded nails.

[0013] Preferably, a metal fixing plate is also provided at the position where the threaded nail connects to the ceramic component.

[0014] Preferably, the metal fixing plate is arranged along the length of the ceramic assembly.

[0015] According to the above technical solution, the present invention is a ceramic composite material distribution disc formed by combining a ceramic preform and a metal matrix. Since the hardness of ceramic materials is usually much higher than that of metals, the ceramic preform is placed in the middle position on one side of the working surface of the distribution disc as the main wear-resistant component, directly bearing the wear action, thereby reducing the wear rate of the metal matrix and thus improving the service life of the ceramic composite material distribution disc.

[0016] Because pure ceramics are brittle and prone to fracture failure, encapsulating the ceramic preform with a metal matrix allows the metal matrix to absorb impact energy and inhibit crack propagation in the ceramic preform 1 through its plasticity and toughness. This makes the ceramic composite material distribution plate less prone to cracking under dynamic loads, thereby extending its service life.

[0017] During the use of ceramic composite material distribution discs, the rigid ceramic preform bears most of the wear. Since the ceramic preform is more wear-resistant than the metal matrix, the ceramic preform may protrude slightly from the metal matrix during the wear process, making it easier for the ceramic preform to come into contact with the flowing aggregate, thus avoiding the aggregate from wearing down the metal matrix and achieving the protection of the metal matrix.

[0018] Preferably, the thickness of the metal matrix covering the ceramic preform is set to 6-8 mm, so that the metal matrix covering the ceramic preform can provide sufficient buffering for the ceramic preform, thereby ensuring the reliability of the ceramic preform during the use of the ceramic composite material distribution plate.

[0019] Ceramic preforms are 3D printed using ceramic particles and binders, resulting in a very rough surface. This roughness can be altered by using ceramic particles of varying sizes. The rough surface of the ceramic preform increases the bonding area between it and the metal substrate, leading to a tighter bond and preventing delamination during use.

[0020] Similarly, setting the edge of the ceramic preform to a wavy shape allows for better bonding between the ceramic preform and the metal substrate. Preferably, the distance between the highest and lowest points of the wavy line is set to 5-8 mm, and the wavelength of the wavy shape is set to 10-20 mm. This increases the contact area at the bonding point between the ceramic preform and the metal substrate, effectively improving the structural strength of the connection and preventing separation between the ceramic preform and the metal substrate.

[0021] The metal matrix is ​​a single-piece structure. Multiple connecting holes are evenly distributed on the ceramic preform. Connectors are installed in the metal matrix and filled within these holes. The two ends of each connector are connected to the metal matrix on either side of the ceramic preform. This method allows the metal matrix to reliably and stably encapsulate the ceramic preform, ensuring the ceramic composite material distribution plate exhibits overall consistency and effectively preventing separation between the ceramic preform and the metal matrix during use.

[0022] Moreover, due to the rough surface of the ceramic preform, setting multiple connection holes can significantly increase the area at the junction of the ceramic preform and the metal matrix, thereby making the connection between the ceramic preform and the metal matrix more reliable, and consequently making the ceramic composite material distribution plate more stable during operation.

[0023] Verification has shown that, in actual use, a material distribution disc made of a single metal material needs to be replaced approximately every 8-9 days, while a material distribution disc made of a wear-resistant ceramic composite matrix material needs to be replaced approximately every 10-11 days. This demonstrates that the service life of a ceramic composite material material distribution disc is extended by 1 / 3 compared to that of a material distribution disc made of a single metal material.

[0024] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of a ceramic composite material distribution plate.

[0027] Figure 2 This is a schematic diagram of a ceramic composite material distribution plate.

[0028] Figure 3 This is a structural schematic diagram of a ceramic preform.

[0029] Figure 4This is a schematic diagram of a ceramic composite material distribution plate;

[0030] Figure 5 This is a schematic diagram of a cavity mold.

[0031] Explanation of reference numerals in the attached figures

[0032] 1. Ceramic preform 2. Metal matrix

[0033] 21 Mounting hole 22 Positioning hole

[0034] 11 Ceramic components 12 Gaps

[0035] 4-cavity mold 32 metal fixing plate Detailed Implementation

[0036] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0037] In this utility model, unless otherwise stated, directional words such as "one end," "the other end," "outer surface," "axis," "conical," and "near" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0038] See Figure 1 The ceramic composite material distribution plate includes a ceramic preform 1 and a metal matrix 2 for wrapping the ceramic preform 1. The ceramic preform 1 has a rough surface and the edges of the ceramic preform 1 are wavy. The thickness of the metal matrix 2 wrapping the ceramic preform 1 is 6-8 mm.

[0039] The ceramic preform 1 has multiple connecting holes 13 evenly distributed on it, and the metal substrate 2 is provided with connectors that fill the connecting holes 13.

[0040] By implementing the above technical solution, a ceramic composite material distribution plate is formed by combining a ceramic preform 1 and a metal matrix 2. Since the hardness of ceramic materials is usually much higher than that of metals, the ceramic preform 1 is placed in the middle position on one side of the working surface of the distribution plate as the main wear-resistant component, directly bearing the wear action, thereby reducing the wear rate of the metal matrix 2 and thus improving the service life of the ceramic composite material distribution plate.

[0041] Because pure ceramics are brittle and prone to fracture failure, encapsulating the ceramic preform 1 with a metal matrix 2 allows the metal matrix 2 to absorb impact energy and inhibit crack propagation in the ceramic preform 1 through its plasticity and toughness. This makes the ceramic composite material distribution plate less prone to cracking under dynamic loads, thereby extending its service life.

[0042] During the use of the ceramic composite material distribution plate, the hard ceramic preform 1 bears most of the wear. Since the ceramic preform 1 is more wear-resistant than the metal matrix 2, the ceramic preform 1 may protrude slightly from the metal matrix 2 during the wear process, making it easier for the ceramic preform 1 to come into contact with the flowing aggregate, avoiding the aggregate from wearing the metal matrix 2, thereby achieving the protection of the metal matrix 2.

[0043] Preferably, the thickness of the metal matrix 2 covering the ceramic preform 1 is set to 6-8 mm, so that the metal matrix 2 covering the ceramic preform 1 can provide sufficient buffering for the ceramic preform 1, thereby ensuring the reliability of the ceramic preform 1 during the use of the ceramic composite material distribution plate.

[0044] The ceramic preform 1 is 3D printed using ceramic particles and a binder. Therefore, the surface of the ceramic preform 1 is very rough, and the roughness can be altered by using ceramic particles of different sizes. This rough surface of the ceramic preform 1 results in a larger bonding area between it and the metal substrate 2, leading to a tighter bond and preventing delamination during use.

[0045] Similarly, setting the edge of the ceramic preform 1 to a wavy shape allows for better bonding between the edge of the ceramic preform 1 and the metal substrate 2. Preferably, the distance between the highest and lowest points of the wavy line is set to 5-8 mm, and the wavelength of the wavy shape is set to 10-20 mm. In this way, the contact area at the bonding point between the ceramic preform 1 and the metal substrate 2 is increased, which can effectively improve the structural strength of the connection point between the ceramic preform 1 and the metal substrate 2 and prevent separation of the ceramic preform 1 and the metal substrate 2.

[0046] The metal substrate 2 is an integral structure. Multiple connecting holes 13 are evenly distributed on the ceramic preform 1. The metal substrate 2 is provided with connectors that fill the connecting holes 13. The two ends of the connectors are respectively connected to the metal substrate 2 located on both sides of the ceramic preform 1. In this way, the metal substrate 2 can stably and reliably wrap the ceramic preform 1, so that the ceramic composite material distribution plate exhibits overall consistency and can effectively prevent the ceramic preform 1 from separating from the metal substrate 2 during use.

[0047] Moreover, since the surface of the ceramic preform 1 is rough, setting multiple connection holes 13 can significantly increase the area of ​​the joint between the ceramic preform 1 and the metal substrate 2, thereby making the connection between the ceramic preform 1 and the metal substrate 2 more reliable, and consequently making the ceramic composite material distribution plate more stable during operation.

[0048] Verification has shown that, in actual use, a material distribution disc made of a single metal material needs to be replaced approximately every 8-9 days, while a material distribution disc made of a wear-resistant ceramic composite matrix material needs to be replaced approximately every 10-11 days. This demonstrates that the service life of a ceramic composite material material distribution disc is extended by 1 / 3 compared to that of a material distribution disc made of a single metal material.

[0049] In this embodiment, preferably, the ceramic composite material distribution plate has a mounting hole 21 at its center, and the mounting hole 21 is located in the metal substrate 2;

[0050] The edge of the ceramic composite material distribution plate is provided with positioning holes 22, which are located in the metal matrix 2.

[0051] To facilitate connection between the ceramic composite material dispensing tray and other equipment, a mounting hole 21 is provided in the center of the tray, allowing it to be fixed to the equipment below it. The mounting hole 21, located on the metal substrate 2, facilitates the fixing of the dispensing tray to surrounding equipment, thus ensuring the reliability of the tray during use.

[0052] This utility model also provides a cavity mold for producing a ceramic composite material distribution plate. The inner cavity of the cavity mold 4 is consistent with the shape of the ceramic composite material distribution plate. The ceramic preform 1 is located in the inner cavity and is fixedly connected to the cavity mold 4. The ceramic preform 1 and the cavity mold 4 are concentrically arranged.

[0053] The ceramic preform 1 and the cavity mold 4 are concentrically arranged. The ceramic preform 1 is fixed in the cavity mold 4. The composite of the ceramic preform 1 and the metal substrate 2 can be achieved by pouring molten steel into the cavity mold 4.

[0054] Molten steel flows into the inner cavity of the mold 4 through the riser on the mold 4. As the molten steel is continuously added, it fills the mold 4 and encapsulates the ceramic preform 1 that was placed inside the mold 4 beforehand.

[0055] After casting is completed, the ceramic composite material distribution tray can be obtained by demolding.

[0056] In this embodiment, preferably, the ceramic preform 1 includes a plurality of ceramic components 11, which are assembled to form the ceramic preform 1, and a gap 12 is provided between two adjacent ceramic components 11.

[0057] Because the temperature of the molten steel during casting is very high, typically around 1400℃, the ceramic preform 1 will expand due to heat during casting. If the ceramic preform 1 is made as a single piece, cracks may appear on its surface during expansion, and even ceramic particles may break apart. If the ceramic particles break apart, the ceramic preform 1 cannot be used as a wear-resistant part.

[0058] The ceramic precast body 1 is composed of multiple ceramic components 11, and there is a gap between two adjacent ceramic components 11. During the casting process, each ceramic component 11 has room to expand, which effectively avoids the collapse of ceramic particles and can significantly improve the casting quality.

[0059] In this embodiment, preferably, the ceramic component 11 is fixedly connected to the cavity mold 4 by threaded nails.

[0060] In order to prevent the relative position of the ceramic component 11 and the cavity mold 4 from changing during the casting process, which would cause the position of the ceramic preform 1 on the ceramic composite material distribution plate to shift and affect the casting quality of the ceramic composite material distribution plate, threaded nails can be used to fix the ceramic component 11 and the cavity mold 4.

[0061] When using threaded nails to fix the cavity mold 4, the threaded nails will penetrate the cavity mold 4. After casting, the excess threaded nails need to be ground off. This ensures the flatness of the material distribution plate surface and the normal use of the material distribution plate.

[0062] In this embodiment, preferably, a metal fixing plate 32 is also provided at the position where the threaded nail connects to the ceramic component 11.

[0063] By setting a metal fixing plate 32, the threaded nail can be prevented from penetrating the ceramic component 11. Preferably, the threaded nail passes through the connecting hole 13 and fixes the metal fixing plate 32 to the cavity mold 4. The ceramic component 11 is located between the metal fixing plate 32 and the cavity mold 4. In this way, not only can the ceramic component 11 be fixed to the cavity mold 4, but the metal fixing plate 32 can also achieve uniform heat conduction during the casting process.

[0064] Compared to the ceramic component 11, the metal fixing plate 32 has better thermal conductivity, which can preheat the entire ceramic component 11 during the casting process. This ensures that the ceramic component 11 of the pillow is heated evenly during the casting process. Moreover, under the action of the metal fixing plate 32, the heating of each part of the ceramic component 11 is more uniform, which can effectively avoid the problem of cracks or ceramic particle breakage caused by uneven heating of the ceramic component 11.

[0065] After the casting is completed, the metal fixing plate 32 will remain in the ceramic composite material distribution tray. Therefore, the metal fixing plate 32 is set on the side of the ceramic component 11 facing away from the working surface of the ceramic composite material distribution tray.

[0066] In this embodiment, preferably, the metal fixing plate 32 is arranged along the length direction of the ceramic component 11.

[0067] The metal fixing plate 32 is arranged along the length of the ceramic component 11, allowing it to cover a larger area of ​​the ceramic component 11 during casting. This ensures uniform heating throughout the ceramic component 11, preventing uneven heating from affecting its stability. The metal fixing plate 32 should also be positioned as close as possible to the edge of the mold cavity 4, where the ceramic component 11 is wider. The metal fixing plate 32 is centered along the width of the ceramic component 11, allowing for effective heat exchange on both sides.

[0068] In summary, when placing the metal fixing plate 32, the edges of the ceramic component 11 and the edges of the metal fixing plate 32 should be spaced by the same amount of ceramic material in all directions to avoid uneven heating of the ceramic component 11 during the casting process.

[0069] In order for the metal fixing plate 32 to cover more of the surface of the ceramic component 11 during use and achieve a better uniform heat conduction effect, the surface area of ​​the metal fixing plate 32 can be set to be larger. However, if the surface area of ​​the metal fixing plate 32 is too large, it will affect the reliability of the bonding between the ceramic preform 1 and the metal substrate 2. Preferably, the surface area of ​​the metal fixing plate 32 is set to be approximately equivalent to 1 / 3 of the surface area of ​​the ceramic component 11.

[0070] The metal fixing plate 32 covering the surface of the ceramic component 11 blocks molten steel, making it difficult for the molten steel to flow into the connection hole 13. This reduces the contact area between the metal substrate 2 and the ceramic component 11. Furthermore, the surface of the metal fixing plate 32 is smoother than that of the ceramic component 11. When the metal fixing plate 32 is positioned between the metal substrate 2 and the ceramic component 11, the reduced contact area at the connection point significantly weakens the connection strength. Therefore, once the surface area of ​​the metal fixing plate 32 exceeds one-third of the surface area of ​​the ceramic component 11, the contact area between the metal substrate 2 and the ceramic component 11 will be significantly reduced, severely impacting the reliability of the bond between the ceramic preform 1 and the metal substrate 2.

[0071] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0072] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0073] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A ceramic composite material dispensing disc, characterized in that, It includes a ceramic preform (1) and a metal substrate (2) for wrapping the ceramic preform (1). The ceramic preform (1) has a rough surface and the edges of the ceramic preform (1) are wavy. The minimum thickness of the metal substrate (2) wrapping the ceramic preform (1) is set to 6-8 mm. The ceramic preform (1) has multiple connecting holes (13) evenly distributed on it, and the metal substrate (2) is provided with connectors that fill the connecting holes (13).

2. The ceramic composite material distribution plate according to claim 1, characterized in that, The ceramic composite material distribution plate has a mounting hole (21) at its center, which is located in the metal substrate (2). The edge of the ceramic composite material distribution plate is provided with positioning holes (22), which are located in the metal matrix (2).

3. A cavity mold for producing the ceramic composite material distribution plate according to any one of claims 1-2, characterized in that, The inner cavity of the cavity mold (4) is consistent with the shape of the ceramic composite material distribution plate. The ceramic preform (1) is located in the inner cavity and is fixedly connected to the cavity mold (4). The ceramic preform (1) and the cavity mold (4) are concentrically arranged.

4. The cavity mold according to claim 3, characterized in that, The ceramic preform (1) includes multiple ceramic components (11), which are assembled to form the ceramic preform (1), and a gap (12) is provided between two adjacent ceramic components (11).

5. The cavity mold according to claim 4, characterized in that, The ceramic component (11) is fixedly connected to the cavity mold (4) by threaded nails.

6. The cavity mold according to claim 5, characterized in that, A metal fixing plate (32) is also provided at the position where the threaded nail connects to the ceramic component (11).

7. The cavity mold according to claim 6, characterized in that, The metal fixing plate (32) is set along the length of the ceramic component (11).

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