Metal ceramic composite structure

Abstract

The utility model discloses a metal ceramic composite structure which comprises a composite wear-resistant layer, a metal layer and a wear-resistant part, and a mounting groove is formed in the composite wear-resistant layer; the metal layer is connected with the composite wear-resistant layer; and the wear-resistant part is embedded in the mounting groove and is at least partially embedded in the metal layer. The composite wear-resistant layer is connected with the metal layer, the wear resistance of the metal layer can be improved by the composite wear-resistant layer, the impact strength of the composite wear-resistant layer can be enhanced by the metal layer, the local wear resistance of the composite wear-resistant layer can be improved by the wear-resistant part embedded in the composite wear-resistant layer, and the wear-resistant part is embedded in the metal layer, so that the wear resistance of the metal layer is improved. The bonding strength of the wear-resisting part, the composite wear-resisting layer and the metal layer is improved, and the risk that the wear-resisting part falls off is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal-ceramic composites, in particular to a metal-ceramic composite structure. Background Art

[0002] By combining metal and ceramic, the composite material has high hardness and strength, and also has the properties of corrosion resistance, wear resistance and high temperature resistance.

[0003] Announcement No. CN217401166U discloses a lined spliced ​​composite ceramic body, including a vortex chamber, a diffuser arranged along the tangent direction of the vortex chamber and connected to the vortex chamber, a lining layer connected to the inner wall of the vortex chamber, and two annular connectors connected to the two sides of the lining layer. The outer wall of the vortex chamber is provided with a metal shell, the inner edge of the connector is circular, and the lining layer includes a plurality of small ceramic liners connected to the middle part of the inner wall of the vortex chamber in a puzzle shape and connected to each other, and a plurality of C-shaped connected ceramic liners connected to the turning point of the inner wall of the vortex chamber.

[0004] In the above-mentioned composite ceramic structure, a ceramic lining is embedded on the ceramic lining of the vortex chamber. However, since the ceramic lining is embedded in the vortex chamber, there is a risk that the wear-resistant ceramic lining will fall off after being used for a period of time. Utility Model Content

[0005] In view of this, it is necessary to provide a metal-ceramic composite structure to solve the technical problem in the prior art that the wear-resistant ceramic lining in the metal-ceramic composite structure has the risk of falling off.

[0006] In order to achieve the above technical objectives, the technical solution of the utility model provides a metal-ceramic composite structure, comprising:

[0007] A composite wear-resistant layer, wherein the composite wear-resistant layer is formed with a mounting groove;

[0008] a metal layer, the metal layer being connected to the composite wear-resistant layer; and

[0009] A wear-resistant portion is embedded in the mounting groove and at least partially embedded in the metal layer.

[0010] In one embodiment, the metal layer is built into the composite wear-resistant layer.

[0011] In one embodiment, at least a portion of the wear-resistant portion passes through the metal layer.

[0012] In one embodiment, there are multiple wear-resistant parts, and the multiple wear-resistant parts are arranged at intervals.

[0013] In one embodiment, the metal layer is provided with a plurality of through holes.

[0014] In one embodiment, the positions of at least part of the through holes correspond to the positions of the mounting grooves, and the wear-resistant portion passes through the metal layer through the through holes.

[0015] In one embodiment, the composite wear-resistant layer at least partially extends into the through hole.

[0016] In one embodiment, an adhesive layer is provided between the wear-resistant portion and the composite wear-resistant layer.

[0017] In one embodiment, the wear resistance of the wear-resistant portion is better than that of the composite wear-resistant layer, and the material of the wear-resistant portion is made of one or more of silicon carbide ceramics, silicon nitride ceramics and boron carbide ceramics.

[0018] In one embodiment, the material of the composite wear-resistant layer is resin-composite silicon carbide or resin-composite aluminum oxide.

[0019] Compared with the prior art, the beneficial effects of the utility model include: by connecting the composite wear-resistant layer with the metal layer, the composite wear-resistant layer can improve the wear resistance of the metal layer, the metal layer can strengthen the impact resistance of the composite wear-resistant layer, by embedding the wear-resistant part on the composite wear-resistant layer, the wear-resistant part can improve the local wear resistance of the composite wear-resistant layer, and by embedding the wear-resistant part into the metal layer, the bonding strength between the wear-resistant part and the composite wear-resistant layer and the metal layer is increased, thereby reducing the risk of the wear-resistant part falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a metal-ceramic composite structure according to an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0022] Figure 3 It is a partial cross-sectional view of a metal-ceramic composite structure according to an embodiment of the utility model;

[0023] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 5 It is a partial cross-sectional view of a metal-ceramic composite structure according to an embodiment of the utility model;

[0025] Figure 6 It is a structural schematic diagram of a metal-ceramic composite structure according to an embodiment of the utility model;

[0026] Figure 7 It is a partial cross-sectional view of a metal-ceramic composite structure according to an embodiment of the utility model;

[0027] Figure 8 It is a partial cross-sectional view of a metal-ceramic composite structure according to an embodiment of the utility model;

[0028] Fig. 9 It is a partial cross-sectional view of a metal-ceramic composite structure described in one embodiment of the utility model.

[0029] Description of reference numerals:

[0030] Composite wear-resistant layer 1;

[0031] Metal layer 2;

[0032] Wear-resistant part 3;

[0033] Adhesive layer 4. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0035] like Figures 1 to 9 As shown, the utility model provides a metal-ceramic composite structure, including a composite wear-resistant layer 1, a metal layer 2 and a wear-resistant portion 3, wherein the composite wear-resistant layer 1 is formed with a mounting groove; the metal layer 2 is connected to the composite wear-resistant layer 1; the wear-resistant portion 3 is embedded in the mounting groove and at least partially embedded in the metal layer 2. It should be understood that the wear resistance of the wear-resistant portion 3 is better than that of the composite wear-resistant layer 1.

[0036] By connecting the composite wear-resistant layer 1 with the metal layer 2, the composite wear-resistant layer 1 can improve the wear resistance of the metal layer 2, and the metal layer 2 can enhance the impact resistance of the composite wear-resistant layer 1; by embedding the wear-resistant portion 3 on the composite wear-resistant layer 1, the wear-resistant portion 3 can improve the local wear resistance of the composite wear-resistant layer 1; by embedding the wear-resistant portion 3 into the metal layer 2, the bonding strength between the wear-resistant portion 3 and the composite wear-resistant layer 1 and the metal layer 2 is increased, thereby reducing the risk of the wear-resistant portion 3 falling off.

[0037] It should be understood that the above-mentioned metal-ceramic composite structure can be applied to fluid conveying structures such as volutes and impellers.

[0038] It should be understood that the above-mentioned metal-ceramic composite structure can be applied to one side of the blade's principal rotation center to improve the structural strength and wear resistance of the blade at that location.

[0039] It should be understood that the composite wear-resistant layer 1, the metal layer 2 and the wear-resistant portion 3 can be in the shape of a strip, square, circle, arc or the like.

[0040] In one embodiment, the metal layer 2 is built into the composite wear-resistant layer 1 .

[0041] The wear resistance of the composite wear-resistant layer 1 is better than that of the metal layer 2. By embedding the metal layer 2 in the composite wear-resistant layer 1, the material is prevented from directly contacting the metal layer 2, and the material is prevented from wearing the metal layer 2. In addition, the composite wear-resistant layer 1 isolates the metal layer 2 from the material. The excellent acid and alkali resistance of ceramics can prevent the material from corroding the metal layer 2.

[0042] In one embodiment, at least a portion of the wear-resistant portion 3 passes through the metal layer 2 .

[0043] By at least partially passing the wear-resistant portion 3 through the metal layer 2 , the bonding strength between the wear-resistant portion 3 and the metal layer 2 can be further enhanced.

[0044] In one embodiment, there are multiple wear-resistant parts 3, and the multiple wear-resistant parts 3 are arranged at intervals. It should be understood that the multiple wear-resistant parts 3 can be arranged in an array or in other forms.

[0045] By providing a plurality of wear-resistant portions 3 , the plurality of wear-resistant portions 3 can further improve the local wear resistance of the composite wear-resistant layer 1 .

[0046] In one embodiment, a plurality of through holes are formed in the metal layer 2. It should be understood that the number of through holes may correspond to the number of mounting slots one by one, or the number of through holes may be set to be greater than the number of mounting slots.

[0047] By opening a through hole in the metal layer 2 , it is convenient for components to pass through the metal layer 2 through the through hole.

[0048] In one embodiment, the positions of at least part of the through holes correspond to the positions of the mounting grooves, and the wear-resistant portion 3 passes through the metal layer 2 through the through holes.

[0049] By setting the through hole, the wear-resistant part 3 can pass through the metal layer 2 through the through hole. Moreover, when installing the wear-resistant part, the wear-resistant part 3 is inserted into the installation groove and passes through the metal layer 2 through the through hole, so that one end of the wear-resistant part 3 can be embedded in the composite wear-resistant layer 1 on the other side of the metal layer 2, further enhancing the connection strength.

[0050] In one embodiment, the composite wear-resistant layer 1 at least partially extends into the through hole.

[0051] By providing a through hole on the metal layer 2, when the composite wear-resistant layer 1 is connected to the metal layer 2, the slurry of the composite wear-resistant layer 1 can enter the through hole. After the composite wear-resistant layer 1 is cured, the composite wear-resistant layer 1 at least partially extends into the through hole, thereby enhancing the bonding strength between the composite wear-resistant layer 1 and the metal layer 2.

[0052] In one embodiment, an adhesive layer 4 is provided between the wear-resistant portion 3 and the composite wear-resistant layer 1 .

[0053] By setting the adhesive layer 4, when the wear-resistant part 3 is set in the installation groove and / or the through hole, the adhesive is applied to the wear-resistant part 3, the installation groove and the through hole. During the curing process of the adhesive, the wear-resistant part 3 is fixed in the installation groove and / or the through hole, and the cured adhesive forms the adhesive layer 4. The adhesive can also be applied before or after the wear-resistant part 3 is set in the installation groove and / or the through hole.

[0054] In one embodiment, the wear resistance of the wear-resistant portion 3 is better than that of the composite wear-resistant layer 1 , and the material of the wear-resistant portion 3 is made of one or more of silicon carbide ceramics, silicon nitride ceramics and boron carbide ceramics.

[0055] By setting the wear resistance of the wear-resistant portion 3 to be better than that of the composite wear-resistant layer 1 , the wear-resistant portion 3 can improve the wear resistance of the weak position of the composite wear-resistant layer 1 .

[0056] It should be understood that the wear resistance of the wear-resistant part 3 may be equivalent to that of the composite wear-resistant layer 1, or worse than that of the composite wear-resistant layer 1. When the wear resistance of the wear-resistant part 3 is equivalent to that of the composite wear-resistant layer 1, or worse than that of the composite wear-resistant layer 1, the wear-resistant part 3 is detachably connected to the composite wear-resistant layer 1 and the metal layer 2.

[0057] It should be understood that the outer wall of the wear-resistant portion 3 can be built into the installation groove, or protrude from the installation groove. In one embodiment, the outer wall of the wear-resistant portion 3 is flush with the outer wall of the composite wear-resistant layer 1.

[0058] Through the above arrangement, the wear-resistant part 3 can be prevented from protruding from the outer wall of the composite wear-resistant layer 1, can be prevented from being retracted into the composite wear-resistant layer 1, can be prevented from having a height difference between the composite wear-resistant layer 1 and the outer wall of the wear-resistant part 3, and can be prevented from having the height difference hinder the passage of materials.

[0059] In one embodiment, the material of the composite wear-resistant layer 1 is resin-composite silicon carbide, resin-composite aluminum oxide, etc.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A metal-ceramic composite structure, characterized in that: include: A composite wear-resistant layer, wherein the composite wear-resistant layer is formed with a mounting groove; A metal layer, the metal layer being connected to the composite wear-resistant layer; and A wear-resistant portion is embedded in the mounting groove and at least partially embedded in the metal layer.

2. The metal-ceramic composite structure according to claim 1, characterized in that: The metal layer is built into the composite wear-resistant layer.

3. The metal-ceramic composite structure according to claim 1, characterized in that: At least a portion of the wear-resistant portion passes through the metal layer.

4. The metal-ceramic composite structure according to claim 1, characterized in that: There are multiple wear-resistant parts, and the multiple wear-resistant parts are arranged at intervals.

5. The metal-ceramic composite structure according to claim 1, characterized in that: The metal layer is provided with a plurality of through holes.

6. The metal-ceramic composite structure according to claim 5, characterized in that: The positions of at least some of the through holes correspond to the positions of the mounting grooves, and the wear-resistant portion passes through the metal layer via the through holes.

7. The metal-ceramic composite structure according to claim 5, characterized in that: The composite wear-resistant layer at least partially extends into the through hole.

8. The metal-ceramic composite structure according to claim 1, characterized in that: An adhesive layer is provided between the wear-resistant portion and the composite wear-resistant layer.

9. The metal-ceramic composite structure according to claim 1, characterized in that: The wear resistance of the wear-resistant portion is better than that of the composite wear-resistant layer.

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