CN111996474A - Metal ceramic part and preparation method thereof - Google Patents
Metal ceramic part and preparation method thereof Download PDFInfo
- Publication number
- CN111996474A CN111996474A CN202010780428.8A CN202010780428A CN111996474A CN 111996474 A CN111996474 A CN 111996474A CN 202010780428 A CN202010780428 A CN 202010780428A CN 111996474 A CN111996474 A CN 111996474A
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- CN
- China
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- parts
- corundum ceramic
- corundum
- fine powder
- ceramic
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
Abstract
The invention relates to the technical field of metal ceramics, and discloses a metal ceramic part which comprises the following raw materials in parts by weight: 10-55 parts of corundum ceramic aggregate, 10-44 parts of corundum ceramic fine powder and 1-40 parts of chrome-nickel alloy fiber, wherein the granularity of the corundum ceramic aggregate is 3-0.1mm, the material quality of the corundum ceramic aggregate is more than or equal to 70% of Al2O3, and the granularity of the corundum ceramic fine powder is 0.1-0.001mm, and the material quality of the corundum ceramic fine powder is more than or equal to 70% of Al2O 3. According to the metal ceramic part and the preparation method thereof, the corundum ceramic aggregate and the corundum ceramic fine powder are used in the preparation process of the metal ceramic part, so that the overall wear resistance of the metal ceramic part can be effectively improved, and meanwhile, the surface gloss of the metal ceramic part can be greatly improved, so that the metal ceramic part has a good appearance.
Description
Technical Field
The invention relates to the technical field of metal ceramics, in particular to a metal ceramic part and a preparation method thereof.
Background
The cermet is a heterogeneous composite material consisting of ceramic and bonding metal, the ceramic and the bonding metal are ground and mixed uniformly, and the mixture is sintered in an inert atmosphere after forming, so that the cermet can be prepared.
Most of the existing cermet pieces in the market are adjusted in hardness and application thereof, so that the problems of insufficient wear resistance, erosion resistance and thermal shock resistance of the cermet pieces are caused, the service life and the use effect of the ceramic metal pieces are influenced, and the cermet pieces and the preparation method thereof are provided for solving the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a metal ceramic part and a preparation method thereof, which have the advantages of good wear resistance, erosion resistance, thermal shock resistance and the like, and solve the problems of poor service life and poor use effect of the ceramic metal part.
(II) technical scheme
In order to achieve the purposes of good wear resistance, erosion resistance and thermal shock resistance, the invention provides the following technical scheme: a metal ceramic part comprises the following raw materials in parts by weight: 10-55 parts of corundum ceramic aggregate, 10-44 parts of corundum ceramic fine powder and 1-40 parts of chrome-nickel alloy fiber.
Preferably, 30 parts of corundum ceramic aggregate, 30 parts of corundum ceramic fine powder and 40 parts of chrome-nickel alloy fiber.
Preferably 55 parts of corundum ceramic aggregate, 44 parts of corundum ceramic fine powder and 1 part of chrome-nickel alloy fiber.
Preferably, the grain size of the corundum ceramic aggregate is 3-0.1mm, the material quality is more than or equal to 70 percent of Al2O3, and the grain size of the corundum ceramic fine powder is 0.1-0.001mm, and the material quality is more than or equal to 70 percent of Al2O 3.
Preferably, the length of the chrome-nickel alloy fiber is 1-100mm, and the material is Cr is more than or equal to 1 percent and Ni is more than or equal to 10 percent.
Another technical problem to be solved by the present invention is to provide a method for preparing a cermet piece, comprising the following steps:
1) putting 10-55 parts of corundum ceramic aggregate into a ceramic grinding machine for grinding until 10-55 parts of corundum ceramic aggregate is ground to the granularity of 3-0.1mm for later use, putting 10-44 parts of corundum ceramic fine powder into a ceramic grinding machine for grinding to the granularity of 0.1-0.001mm for later use, and simultaneously taking 1-40 parts of chromium-nickel alloy fiber with the fiber length of 1-100mm for later use;
2) weighing 10-55 parts of the crushed corundum ceramic aggregate prepared in the step, 10-44 parts of the crushed corundum ceramic fine powder and 1-40 parts of the chromium-nickel alloy fiber according to a specific ratio, then putting the weighed corundum ceramic aggregate, corundum ceramic fine powder and chromium-nickel alloy fiber in a stirrer for stirring and mixing, wherein the mixing and stirring time is controlled to be 20-40min, so that the uniform mixing can be ensured, and finally the mixed powder mixed material is obtained for later use;
3) transferring the powder mixed material obtained in the step into a pressure forming machine to apply pressure to obtain a pressed compact, wherein the pressure for forming the pressed compact is 10-30MPa, and the pressure maintaining time is 1-3 minutes;
4) and (3) placing the pressed blank obtained in the step into a sintering furnace for sintering, preserving heat for 1-3 hours at 1000-1600 ℃ during sintering, and discharging the pressed blank after cooling to obtain a final finished product.
(III) advantageous effects
Compared with the prior art, the invention provides a metal ceramic part and a preparation method thereof, and the metal ceramic part has the following beneficial effects:
1. according to the metal ceramic part and the preparation method thereof, the corundum ceramic aggregate and the corundum ceramic fine powder are used in the preparation process of the metal ceramic part, so that the overall wear resistance of the metal ceramic part can be effectively improved, and meanwhile, the surface glossiness of the metal ceramic part can be greatly improved, and the metal ceramic part has a good appearance.
2. According to the metal ceramic piece and the preparation method thereof, the chromium-nickel alloy fiber is used in the preparation process of the metal ceramic piece, so that the erosion resistance and the thermal shock resistance of the chromium-nickel alloy fiber can be effectively improved, and the erosion resistance of the chromium alloy fiber can be improved after the chromium alloy fiber is combined with a nickel group because the chromium alloy has the characteristics of high strength and corrosion resistance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a metal ceramic part comprises the following raw materials in parts by weight: 30 parts of corundum ceramic aggregate, 30 parts of corundum ceramic fine powder and 40 parts of chrome-nickel alloy fiber.
A preparation method of a metal ceramic piece comprises the following steps:
1) putting 10-55 parts of corundum ceramic aggregate into a ceramic grinding machine for grinding until 10-55 parts of corundum ceramic aggregate is ground to a granularity of 3-0.1mm for later use, putting 10-44 parts of corundum ceramic fine powder into a ceramic grinding machine for grinding to a granularity of 0.1-0.001mm for later use, and simultaneously taking 1-40 parts of chrome-nickel alloy fiber with the fiber length of 1-100mm as raw material for later use, wherein the corundum ceramic aggregate and the corundum ceramic fine powder can effectively increase the integral wear resistance of the metal ceramic part, and can also greatly improve the surface gloss of the metal ceramic part, so that the metal ceramic part has good appearance;
2) weighing 10-55 parts of the crushed corundum ceramic aggregate, 10-44 parts of the crushed corundum ceramic fine powder and 1-40 parts of the chromium-nickel alloy fiber prepared in the steps according to a specific proportion, then putting the weighed corundum ceramic aggregate, corundum ceramic fine powder and chromium-nickel alloy fiber in a stirrer for stirring and mixing, wherein the mixing and stirring time is controlled to be 20-40min, so that the uniform mixing can be ensured, and finally the mixed powder mixed material is obtained for standby use, and the chromium-nickel alloy fiber can effectively increase the erosion resistance and thermal shock resistance of the chromium-nickel alloy fiber, because the chromium alloy has the characteristics of high strength and corrosion resistance, and can further improve the erosion resistance after being combined with a nickel group;
3) transferring the powder mixed material obtained in the step into a pressure forming machine to apply pressure to obtain a pressed compact, wherein the pressure for forming the pressed compact is 10-30MPa, and the pressure maintaining time is 1-3 minutes;
4) and (3) placing the pressed blank obtained in the step into a sintering furnace for sintering, preserving heat for 1-3 hours at 1000-1600 ℃ during sintering, and discharging the pressed blank after cooling to obtain a final finished product.
Example two: a metal ceramic part comprises the following raw materials in parts by weight: 55 parts of corundum ceramic aggregate, 44 parts of corundum ceramic fine powder and 1 part of chrome-nickel alloy fiber.
A preparation method of a metal ceramic piece comprises the following steps:
1) putting 10-55 parts of corundum ceramic aggregate into a ceramic grinding machine for grinding until 10-55 parts of corundum ceramic aggregate is ground to a granularity of 3-0.1mm for later use, putting 10-44 parts of corundum ceramic fine powder into a ceramic grinding machine for grinding to a granularity of 0.1-0.001mm for later use, and simultaneously taking 1-40 parts of chrome-nickel alloy fiber with the fiber length of 1-100mm as raw material for later use, wherein the corundum ceramic aggregate and the corundum ceramic fine powder can effectively increase the integral wear resistance of the metal ceramic part, and can also greatly improve the surface gloss of the metal ceramic part, so that the metal ceramic part has good appearance;
2) weighing 10-55 parts of the crushed corundum ceramic aggregate, 10-44 parts of the crushed corundum ceramic fine powder and 1-40 parts of the chromium-nickel alloy fiber prepared in the steps according to a specific proportion, then putting the weighed corundum ceramic aggregate, corundum ceramic fine powder and chromium-nickel alloy fiber in a stirrer for stirring and mixing, wherein the mixing and stirring time is controlled to be 20-40min, so that the uniform mixing can be ensured, and finally the mixed powder mixed material is obtained for standby use, and the chromium-nickel alloy fiber can effectively increase the erosion resistance and thermal shock resistance of the chromium-nickel alloy fiber, because the chromium alloy has the characteristics of high strength and corrosion resistance, and can further improve the erosion resistance after being combined with a nickel group;
3) transferring the powder mixed material obtained in the step into a pressure forming machine to apply pressure to obtain a pressed compact, wherein the pressure for forming the pressed compact is 10-30MPa, and the pressure maintaining time is 1-3 minutes;
4) and (3) placing the pressed blank obtained in the step into a sintering furnace for sintering, preserving heat for 1-3 hours at 1000-1600 ℃ during sintering, and discharging the pressed blank after cooling to obtain a final finished product.
The invention has the beneficial effects that: the corundum ceramic aggregate and the corundum ceramic fine powder are used in the preparation process of the metal ceramic piece, so that the overall wear resistance of the metal ceramic piece can be effectively improved, the surface gloss of the metal ceramic piece can be greatly improved, the metal ceramic piece has good appearance, the erosion resistance and the thermal shock resistance of the metal ceramic piece can be effectively improved by using the chromium-nickel alloy fiber in the preparation process of the metal ceramic piece, and the erosion resistance of the metal ceramic piece can be improved by combining the chromium alloy fiber with a nickel group because the chromium alloy has the characteristics of high strength and corrosion resistance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The metal ceramic part is characterized by comprising the following raw materials in parts by weight: 10-55 parts of corundum ceramic aggregate, 10-44 parts of corundum ceramic fine powder and 1-40 parts of chrome-nickel alloy fiber.
2. The cermet according to claim 1, wherein the corundum ceramic aggregate is 30 parts, the corundum ceramic fine powder is 30 parts, and the chrome-nickel alloy fiber is 40 parts.
3. The cermet according to claim 1, wherein the corundum ceramic aggregate is 55 parts, the corundum ceramic fine powder is 44 parts, and the chrome-nickel alloy fiber is 1 part.
4. The cermet according to claim 1, wherein the corundum ceramic aggregate has a grain size of 3-0.1mm and is made of Al2O3 ≥ 70%, and the corundum ceramic fine powder has a grain size of 0.1-0.001mm and is made of Al2O3 ≥ 70%.
5. The cermet according to claim 1, wherein the fibers of the Inconel fibers have a length of 1-100mm and are made of Cr 1% or more and Ni 10% or more.
6. The preparation method of the metal ceramic part is characterized by comprising the following steps:
1) putting 10-55 parts of corundum ceramic aggregate into a ceramic grinding machine for grinding until 10-55 parts of corundum ceramic aggregate is ground to the granularity of 3-0.1mm for later use, putting 10-44 parts of corundum ceramic fine powder into a ceramic grinding machine for grinding to the granularity of 0.1-0.001mm for later use, and simultaneously taking 1-40 parts of chromium-nickel alloy fiber with the fiber length of 1-100mm for later use;
2) weighing 10-55 parts of the crushed corundum ceramic aggregate prepared in the step, 10-44 parts of the crushed corundum ceramic fine powder and 1-40 parts of the chromium-nickel alloy fiber according to a specific ratio, then putting the weighed corundum ceramic aggregate, corundum ceramic fine powder and chromium-nickel alloy fiber in a stirrer for stirring and mixing, wherein the mixing and stirring time is controlled to be 20-40min, so that the uniform mixing can be ensured, and finally the mixed powder mixed material is obtained for later use;
3) transferring the powder mixed material obtained in the step into a pressure forming machine to apply pressure to obtain a pressed compact, wherein the pressure for forming the pressed compact is 10-30MPa, and the pressure maintaining time is 1-3 minutes;
4) and (3) placing the pressed blank obtained in the step into a sintering furnace for sintering, preserving heat for 1-3 hours at 1000-1600 ℃ during sintering, and discharging the pressed blank after cooling to obtain a final finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780428.8A CN111996474A (en) | 2020-08-06 | 2020-08-06 | Metal ceramic part and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010780428.8A CN111996474A (en) | 2020-08-06 | 2020-08-06 | Metal ceramic part and preparation method thereof |
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| CN111996474A true CN111996474A (en) | 2020-11-27 |
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| CN202010780428.8A Pending CN111996474A (en) | 2020-08-06 | 2020-08-06 | Metal ceramic part and preparation method thereof |
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Citations (14)
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|---|---|---|---|---|
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| CN102296289A (en) * | 2011-08-19 | 2011-12-28 | 九江学院 | Preparation method of metal ceramic coating with intermetallic compound as binding phase |
| CN102601348A (en) * | 2012-03-15 | 2012-07-25 | 洛阳鹏飞耐火耐磨材料有限公司 | Metal ceramic reinforced body |
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| GB1558068A (en) * | 1975-07-09 | 1979-12-19 | Teledyne Ind | Aluminium oxide based compositions |
| JPS6112935A (en) * | 1984-06-27 | 1986-01-21 | Hiroyuki Kanai | Ring for spinning machine |
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Application publication date: 20201127 |