CN214051897U - Metal matrix ceramic composite wear-resistant plate hammer - Google Patents
Metal matrix ceramic composite wear-resistant plate hammer Download PDFInfo
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- CN214051897U CN214051897U CN202022744534.9U CN202022744534U CN214051897U CN 214051897 U CN214051897 U CN 214051897U CN 202022744534 U CN202022744534 U CN 202022744534U CN 214051897 U CN214051897 U CN 214051897U
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Abstract
The utility model discloses a compound wear-resisting bar hammer of metal matrix pottery, include: a metal substrate; the three-dimensional honeycomb space structure reinforcement is a porous block structure formed in a ceramic material, and a metal material is filled in the pores through casting to form a ceramic metal matrix composite reinforcement; the ceramic metal matrix composite reinforcement bodies and the metal matrix which are continuously arranged are formed in the plate hammer mould by gravity casting, and are formed on the working surface of the metal matrix. The massive three-dimensional honeycomb space structure reinforcement can be formed by adopting ceramic materials such as silicon carbide, aluminum oxide, zirconia ceramics or ZTA and the like to cast the working surface of the metal matrix plate hammer, so that the bonding strength of the metal matrix and the reinforcement is increased, and different use working conditions are met; the utility model discloses utilize wear-resisting pottery high rigidity, hardness is even, the characteristics that the wearability is good, synthesize promotion board hammer wearability, prolonged board hammer life.
Description
Technical Field
The utility model relates to a bar technical field, more specifically the utility model relates to a compound wear-resisting bar of metal matrix pottery that says so.
Background
Along with the continuous reduction of the quantity of natural sandstone, the machine-made sandstone can meet the industrial demand and can effectively improve the performance of building aggregate, and is widely applied to various building fields. The crusher plate hammer is an important component of the crusher and also a main consumption part in the crushing process link of the crusher, and the improvement of the performance of the plate hammer is more and more emphasized by technical personnel in the field. Patent document CN203862316U discloses a novel high wear-resistant hammer head made of brazing steel bonded hard alloy, wherein the hard alloy is fixed on a working surface by adopting dovetail fixing and brazing modes, but the hard alloy is generally expensive; patent document CN203862317U discloses a novel PDC-embedded brazing steel bond hard alloy high-wear-resistant hammer head, which adopts a PDC-embedded steel bond hard alloy contour block as a plate hammer working surface, and the cost is further increased; patent document CN110075973A discloses a novel high-wear-resistance grate cooler combined hammer head with a tungsten carbide hard alloy block fixed by bolts, wherein the tungsten carbide hard alloy block is embedded in the working surface of the hammer head in a mechanical fixing mode, but the mechanical fixing and fastening capability is only used under general working conditions; in conclusion, the low-alloy wear-resistant material adopted by the traditional crusher plate hammer has lower production cost, but only meets the wear-resistant conditions of common working conditions; by adopting the integral forming of the hard alloy, the wear resistance is enhanced, the service life of the plate hammer is greatly prolonged, but the cost is higher and the forming is difficult. Therefore, how to provide a composite wear-resistant plate hammer with good wear resistance and long service life is a problem which needs to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to provide a compound wear-resisting bar hammer of metal matrix pottery improves the bar hammer wearability, increase of service life.
The utility model provides a pair of compound wear-resisting bar hammer of metal matrix pottery, include:
a metal substrate;
the three-dimensional honeycomb space structure reinforcement is a porous block structure formed in a ceramic material, and a metal material is filled in the pores through casting to form a ceramic metal matrix composite reinforcement; the ceramic metal matrix composite reinforcement bodies and the metal matrix which are continuously arranged are formed in the plate hammer mould by gravity casting, and are formed on the working surface of the metal matrix.
According to the technical scheme, compared with the prior art, the utility model discloses a metal matrix ceramic composite wear-resisting plate hammer can adopt ceramic materials such as carborundum, alumina, zirconia pottery or ZTA to form cubic three-dimensional honeycomb space structure reinforcement and cast the metal matrix plate hammer working face, thereby has increased the bonding strength of metal matrix and reinforcement, satisfies different use operating modes; the utility model discloses utilize wear-resisting pottery high rigidity, hardness is even, the characteristics that the wearability is good, synthesize promotion board hammer wearability, prolonged board hammer life.
Further, the three-dimensional honeycomb space structure reinforcement is prepared and molded by adopting organic foam impregnation.
Further, the three-dimensional honeycomb space structure reinforcement is formed by 3D printing and photocuring.
Further, the porosity of the three-dimensional honeycomb space structure reinforcement body is 15-25 PPi.
Further, metallizing the surface and the internal framework of the three-dimensional honeycomb space structure reinforcement body by a chemical vapor deposition method to form a coating, wherein the thickness of the coating is 10-20 microns; the method is used for improving the wettability of the ceramic reinforcement and the metal matrix, and is beneficial to the combination of the internal holes of the three-dimensional honeycomb space structure reinforcement and the metal material. The coating layer may be formed using a metal such as titanium.
Furthermore, the thickness of the ceramic metal matrix composite reinforcement accounts for 40-50% of the total thickness of the plate hammer; namely, the unilateral thickness of the reinforcing body accounts for 20 to 25 percent of the total thickness.
Further, the hardness value of the metal material cast and filled in the hole is greater than that of the metal matrix; advantageously, the filler metal material is selected to have a wear resistance greater than the wear resistance of the metal matrix, thereby providing the metal matrix with a degree of toughness that absorbs the impact experienced by the reinforcement during use, and at the same time, the material selection may reduce costs. The metal matrix may be low alloy steel and the cast filler material in the holes of the reinforcement members may be chromium 27.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a metal matrix ceramic composite wear-resistant plate hammer provided by the present invention;
FIG. 2 is a schematic diagram of a three-dimensional honeycomb spatial structure reinforcement;
FIG. 3 is a schematic view of a ceramic metal matrix composite reinforcement as cast with a metal matrix;
in the figure: 100-metal matrix, 200-three-dimensional honeycomb space structure reinforcement, 300-ceramic metal matrix composite reinforcement and 400-plate hammer mold cavity.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to the accompanying drawings 1-3, the embodiment of the utility model discloses a metal matrix ceramic composite wear-resisting board hammer, include:
a metal base 100;
the three-dimensional honeycomb space structure reinforcement body 200 is a porous block structure formed inside a ceramic material, and a metal material is filled in the pores through casting to form a ceramic metal matrix composite reinforcement body 300; the ceramic metal matrix composite reinforcement members 300 are formed with the metal matrix 100 in a hammer mold by gravity casting, and are formed on the working surface of the metal matrix 100.
The utility model discloses a metal matrix ceramic composite wear-resistant plate hammer, which can adopt ceramic materials such as silicon carbide, aluminum oxide, zirconia ceramics or ZTA and the like to form a massive three-dimensional honeycomb space structure reinforcement to cast the working surface of the metal matrix plate hammer, thereby increasing the bonding strength of the metal matrix and the reinforcement and meeting different use working conditions; the utility model discloses utilize wear-resisting pottery high rigidity, hardness is even, the characteristics that the wearability is good, synthesize promotion board hammer wearability, prolonged board hammer life.
In one embodiment of the present invention, the three-dimensional honeycomb spatial structure reinforcement member 200 is formed by impregnating organic foam. Namely, polyurethane foam is pretreated, ceramic slurry is prepared, the ceramic slurry is uniformly coated on a foam framework and pore diameters as much as possible, and the foam is decomposed at high temperature through sintering, so that a three-dimensional network through reinforcement is prepared (the porosity of the three-dimensional honeycomb space structure reinforcement is controlled mainly through a polyurethane foam body).
In an embodiment of the present invention, the three-dimensional honeycomb spatial structure reinforcement member 200 is formed by 3D printing and photocuring. Porosity is determined by the original model structure.
More advantageously, the surface and the internal skeleton of the three-dimensional honeycomb space structure reinforcement body 200 are metallized by a chemical vapor deposition method to form a coating, and the thickness of the coating is 10-20 μm. The method is used for improving the wettability of the ceramic reinforcement and the metal matrix, and is beneficial to the combination of the internal holes of the three-dimensional honeycomb space structure reinforcement and the metal material.
The coating can be formed by using metal such as Ni, Ti and the like; or metallization with Ni-Cr-Fe: preparing alloy powder into slurry by adopting a nitro-cotton solution with the viscosity adjusted by absolute ethyl alcohol, dip-coating the slurry on the surface of the three-dimensional honeycomb space structure reinforcement body, and placing the three-dimensional honeycomb space structure reinforcement body in a 100 ℃ constant-temperature constant-humidity drying box for drying and storage;
metallization by copper compound method can also be used: preparing slurry from a mixture of copper sulfide and other powders by using a nitrocotton solution, dip-coating the slurry on the surface of the three-dimensional honeycomb space structure reinforcement body, drying the slurry in a constant-temperature constant-humidity drying box at 100 ℃ for 24 hours, sintering the dried slurry at the temperature of more than 1000 ℃ for 30 minutes, cooling the sintered product to 350 ℃ along with the furnace, taking out a sample, and soaking the sample in an absolute ethyl alcohol solvent.
In the utility model, the thickness of the ceramic metal matrix composite reinforcement body 300 accounts for 40-50% of the total thickness of the plate hammer. Namely, the unilateral thickness of the reinforcing body accounts for 20 to 25 percent of the total thickness.
In the embodiment of the utility model, the hardness value of the metal material cast and filled in the hole is larger than the hardness value of the metal matrix 100; advantageously, the filler metal material is selected to have a wear resistance greater than the wear resistance of the metal matrix, thereby providing the metal matrix with a degree of toughness that absorbs the impact experienced by the reinforcement during use, and at the same time, the material selection may reduce costs. The metal matrix may be low alloy steel and the cast filler material in the holes of the reinforcement members may be chromium 27.
Referring to fig. 3, in the above embodiment, the ceramic material may be prepared into a block-shaped three-dimensional honeycomb space structure reinforcement with a length, a width and a height of 70X90X190mm, and the two methods are adopted to realize that the three-dimensional honeycomb space structure reinforcement is fixed to an 80X100X200mm mold cavity (a mold cavity mounting pin is used for fixing a molybdenum wire) by adopting a gravity casting method to prepare an 80X100X200mm metal-based ceramic composite reinforcement, namely a primary casting body; and then, continuously fixing a plurality of primary casting bodies (ceramic metal matrix composite reinforcement bodies) in the plate hammer mold cavity 400 through molybdenum wires, wherein the primary casting bodies can be fixed singly or in a row, so that the position change during the casting process is prevented, and the reinforcement bodies are compounded with the metal matrix of the plate hammer in a gravity casting mode to form a secondary casting body, namely a metal matrix ceramic composite plate hammer entity.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a metal matrix ceramic composite wear-resisting board hammer which characterized in that includes:
a metal base (100);
the three-dimensional honeycomb space structure reinforcement (200) is a porous block structure formed inside a ceramic material, and a metal material is filled in the pores through casting to form a ceramic metal matrix composite reinforcement (300); the ceramic metal matrix composite reinforcement bodies (300) and the metal matrix (100) which are arranged in series are formed in a plate hammer mold by gravity casting, and are formed on the working surface of the metal matrix (100).
2. The metal matrix ceramic composite wear-resistant plate hammer according to claim 1, wherein the three-dimensional honeycomb spatial structure reinforcement body (200) is prepared and molded by organic foam impregnation.
3. The metal matrix ceramic composite wear-resistant plate hammer according to claim 1, wherein the three-dimensional honeycomb spatial structure reinforcement body (200) is formed by 3D printing and photocuring.
4. The metal matrix ceramic composite wear resistant panel hammer of claim 2 or 3, wherein the porosity of the three-dimensional honeycomb spatial structure reinforcement (200) is 15-25 PPi.
5. The metal-matrix ceramic composite wear-resistant plate hammer as claimed in claim 4, wherein the surface and the internal skeleton of the three-dimensional honeycomb spatial structure reinforcement body (200) are metalized by a chemical vapor deposition method to form a coating, and the thickness of the coating is 10-20 μm.
6. The metal matrix ceramic composite wear resistant bar of any one of claims 1 to 3 and 5 wherein the ceramic metal matrix composite reinforcement (300) has a thickness of 40% to 50% of the total bar thickness.
7. The metal matrix ceramic composite wear resistant panel hammer of claim 6, wherein the hardness value of the metal material cast and filled in the hole is greater than the hardness value of the metal matrix (100).
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| CN202022744534.9U CN214051897U (en) | 2020-11-24 | 2020-11-24 | Metal matrix ceramic composite wear-resistant plate hammer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570483A (en) * | 2022-02-08 | 2022-06-03 | 徐州徐工矿业机械有限公司 | Martensite/bainite steel base ZTA ceramic composite material impact crusher plate hammer and manufacturing method thereof |
| CN114570481A (en) * | 2022-02-08 | 2022-06-03 | 徐州徐工矿业机械有限公司 | High-chromium cast iron-based ZTA ceramic composite material impact crusher plate hammer and manufacturing method thereof |
-
2020
- 2020-11-24 CN CN202022744534.9U patent/CN214051897U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570483A (en) * | 2022-02-08 | 2022-06-03 | 徐州徐工矿业机械有限公司 | Martensite/bainite steel base ZTA ceramic composite material impact crusher plate hammer and manufacturing method thereof |
| CN114570481A (en) * | 2022-02-08 | 2022-06-03 | 徐州徐工矿业机械有限公司 | High-chromium cast iron-based ZTA ceramic composite material impact crusher plate hammer and manufacturing method thereof |
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Effective date of registration: 20211116 Address after: 518051 room 13e, block F, colorful holiday garden, Nanguang 112, Nanshan street, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Zengcai Technology Co., Ltd Address before: 101300 Shunyi District Zhongguancun Science Park, Shunyi Park, No. 1 Linkong Second Road, Shunyi District, Beijing Patentee before: Guoqian Technology Group Co., Ltd |
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Effective date of registration: 20220622 Address after: 101300 Shunyi District Zhongguancun Science Park, Shunyi Park, No. 1 Linkong Second Road, Shunyi District, Beijing Patentee after: Guoqian Technology Group Co.,Ltd. Address before: 518051 room 13e, block F, colorful holiday garden, Nanguang 112, Nanshan street, Nanshan District, Shenzhen, Guangdong Patentee before: Shenzhen Zengcai Technology Co.,Ltd. |