CN111996475A - Titanium-aluminum refractory metal piece and preparation method thereof - Google Patents
Titanium-aluminum refractory metal piece and preparation method thereof Download PDFInfo
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- CN111996475A CN111996475A CN202010780734.1A CN202010780734A CN111996475A CN 111996475 A CN111996475 A CN 111996475A CN 202010780734 A CN202010780734 A CN 202010780734A CN 111996475 A CN111996475 A CN 111996475A
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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
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- 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
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- 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
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- 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
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Abstract
The invention discloses a titanium-aluminum refractory metal piece and a preparation method thereof, and relates to the technical field of novel high-temperature-resistant metal materials. The composite material comprises the following raw materials in parts by weight: 10-55 parts of aggregate, 10-44 parts of mixed fine powder and 1-40 parts of titanium-aluminum alloy fiber. The titanium-aluminum refractory metal piece and the preparation method thereof have the advantages that the prepared refractory metal piece is formed by filling inorganic materials with high refractoriness by taking titanium-aluminum alloy fibers as a matrix, performing vibration molding, compression molding and high-temperature sintering, and has excellent ultrahigh wear resistance, erosion resistance, thermal shock resistance and the like, so that the prepared titanium-aluminum refractory metal piece has a good using effect in a thermal kiln; the prepared titanium-aluminum refractory metal piece is prepared into a finished product after batching, mixing, vibration forming and drying firing, the prepared titanium-aluminum refractory metal piece contains titanium-aluminum alloy fibers, the strength and the service performance of the titanium-aluminum refractory metal piece are ensured, and the prepared titanium-aluminum refractory metal piece is suitable for high-temperature wear-resistant parts of various thermotechnical kilns.
Description
Technical Field
The invention relates to the technical field of novel high-temperature-resistant metal materials, in particular to a titanium-aluminum refractory metal piece and a preparation method thereof.
Background
At present, refractory bricks or castable materials are commonly used at high-temperature and wear-resistant parts of various thermotechnical kilns, but the main materials of the refractory bricks or the castable materials are inorganic oxides, so that the problems of low strength and poor wear resistance exist, and the service life of the thermotechnical kilns is unstable.
Titanium aluminum is an intermetallic chemical compound, has light weight and good effects of oxidation resistance and high temperature resistance, so that the existing refractory metal piece made of titanium aluminum is applied to the wear-resistant and high-temperature-resistant part of a thermotechnical kiln.
Therefore, a titanium-aluminum refractory metal part and a preparation method thereof are provided to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a titanium-aluminum refractory metal piece and a preparation method thereof, which aim to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a titanium-aluminum refractory metal piece comprises the following raw materials in parts by weight: 10-55 parts of aggregate, 10-44 parts of mixed fine powder and 1-40 parts of titanium-aluminum alloy fiber.
A preparation method of a titanium-aluminum refractory metal piece comprises the following steps:
s1, preparation of raw materials: weighing aggregate, mixed fine powder and titanium-aluminum alloy fiber in sequence according to parts by weight for later use;
s2, mixing material: putting the aggregate, the mixed fine powder and the titanium-aluminum alloy fiber weighed in the step S1 into a stirrer for stirring treatment, and uniformly stirring to obtain a required mixed material for later use;
s3, compression molding: slowly pouring the mixed material prepared in the step S2 into a mould, and vibrating and forming to prepare a sheet blank for later use;
s4, drying and demolding: naturally drying the blank prepared in the step S3, starting demoulding operation after drying is finished, and reserving the demoulded blank for later use;
s5, firing of blanks: and (5) placing the blank obtained in the step (S4) into a high-temperature electric furnace, and cooling after firing to obtain the required titanium-aluminum refractory metal piece.
Further optimizing the technical scheme, the aggregate in the step S2 has a granularity of 3-0.1mm, and the aggregate is made of bauxite, kyanite, andalusite, sillimanite, magnesia and flint clay.
Further optimizing the technical scheme, the granularity of the mixed fine powder in the step S2 is 0.1-0.001mm, and the material of the mixed fine powder comprises an aggregate material and alumina micropowder, pure calcium aluminate cement, silicon carbide and silica micropowder.
Further optimizing the technical scheme, the fiber length of the titanium-aluminum alloy fiber in the step S2 is 1-100mm, and the material is more than or equal to 20% of Ti and more than or equal to 5% of Al.
Further optimizing the technical scheme, the time of the natural drying treatment in the step S4 is 5-24 h.
Advantageous effects
Compared with the prior art, the invention provides a titanium-aluminum refractory metal piece and a preparation method thereof, and the titanium-aluminum refractory metal piece has the following beneficial effects:
1. the titanium-aluminum refractory metal piece and the preparation method thereof are characterized in that the prepared refractory metal piece is prepared by filling inorganic materials with high refractoriness into titanium-aluminum alloy fibers serving as a matrix, performing vibration molding, compression molding and high-temperature sintering, and has the advantages of excellent ultrahigh wear resistance, erosion resistance, thermal shock resistance and the like, so that the prepared titanium-aluminum refractory metal piece has a good using effect in a thermal kiln.
2. The titanium-aluminum refractory metal piece prepared by the invention is prepared into a finished product after batching, mixing, pressing and drying firing, and the prepared titanium-aluminum refractory metal piece contains titanium-aluminum alloy fibers, so that the strength and the service performance of the titanium-aluminum refractory metal piece are ensured, the prepared titanium-aluminum refractory metal piece is suitable for high-temperature wear-resistant parts of various thermotechnical kilns, and the application range of the titanium-aluminum refractory metal piece is ensured.
Drawings
Fig. 1 is a schematic flow chart of a titanium-aluminum refractory metal piece and a preparation method thereof according to the present invention.
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: referring to fig. 1, the invention discloses a titanium-aluminum refractory metal part, which comprises the following raw materials in parts by weight: 55 parts of aggregate, 44 parts of mixed fine powder and 1 part of titanium-aluminum alloy fiber.
A preparation method of a titanium-aluminum refractory metal piece comprises the following steps:
s1, preparation of raw materials: weighing aggregate, mixed fine powder and titanium-aluminum alloy fiber in sequence according to parts by weight for later use, wherein the aggregate has the granularity of 3mm, the aggregate is made of bauxite, kyanite, andalusite, sillimanite, magnesia and flint, the mixed fine powder has the granularity of 0.1mm, the mixed fine powder comprises alumina micropowder, pure calcium aluminate cement, silicon carbide and silicon micropowder outside the aggregate, the fiber length of the titanium-aluminum alloy fiber is 20mm, and the materials are that Ti is more than or equal to 20% and Al is more than or equal to 5%;
s2, mixing material: putting the aggregate, the mixed fine powder and the titanium-aluminum alloy fiber weighed in the step S1 into a stirrer for stirring treatment, and uniformly stirring to obtain a required mixed material for later use;
s3, compression molding: slowly pouring the mixed material prepared in the step S2 into a mould, and vibrating and forming to prepare a sheet blank for later use;
s4, drying and demolding: naturally drying the blank prepared in the step S3 for 10h, starting demoulding operation after drying is finished, and preparing the demoulded blank for later use;
s5, firing of blanks: the blank obtained in step S4 was placed in a high-temperature electric furnace at a firing temperature of 1200 ℃ for 4 hours.
The raw materials are weighed according to the proportion, and the prepared prefabricated member with high steel fiber content has thermal shock stability of more than or equal to 20 times at 1100 ℃ and water cooling, normal-temperature wear resistance of less than or equal to 1.0cm3 and normal-temperature compressive strength of more than 200 Mpa.
Example two: referring to fig. 1, the invention discloses a titanium-aluminum refractory metal part, which comprises the following raw materials in parts by weight: 30 parts of aggregate, 30 parts of mixed fine powder and 30 parts of titanium-aluminum alloy fiber.
A preparation method of a titanium-aluminum refractory metal piece comprises the following steps:
s1, preparation of raw materials: weighing aggregate, mixed fine powder and titanium-aluminum alloy fiber in sequence according to parts by weight for later use, wherein the aggregate has the granularity of 2mm, the aggregate is made of bauxite, kyanite, andalusite, sillimanite, magnesia and flint, the mixed fine powder has the granularity of 0.05mm, the mixed fine powder comprises alumina micropowder, pure calcium aluminate cement, silicon carbide and silicon micropowder, the fiber length of the titanium-aluminum alloy fiber is 1-100mm, the material is more than or equal to 20 percent of Ti, and more than or equal to 5 percent of Al;
s2, mixing material: putting the aggregate, the mixed fine powder and the titanium-aluminum alloy fiber weighed in the step S1 into a stirrer for stirring treatment, and uniformly stirring to obtain a required mixed material for later use;
s3, compression molding: slowly pouring the mixed material prepared in the step S2 into a mould, and performing vibration molding to prepare a blank for later use;
s4, drying and demolding: naturally drying the blank prepared in the step S3 for 20h, starting demoulding operation after drying is finished, and preparing the demoulded blank for later use;
s5, firing of blanks: the blank obtained in step S4 was placed in a high-temperature electric furnace at a firing temperature of 1300 ℃ for 4 hours.
The raw materials are weighed according to the proportion, and the prepared titanium-aluminum refractory metal piece has thermal shock stability of more than or equal to 50 times when being cooled by water at 1100 ℃, normal-temperature wear resistance of less than or equal to 0.5cm3 and normal-temperature compressive strength of more than 500 Mpa.
Example three: referring to fig. 1, the invention discloses a titanium-aluminum refractory metal part, which comprises the following raw materials in parts by weight: 50 parts of aggregate, 25 parts of mixed fine powder and 20 parts of titanium-aluminum alloy fiber.
A preparation method of a titanium-aluminum refractory metal piece comprises the following steps:
s1, preparation of raw materials: weighing aggregate, mixed fine powder and titanium-aluminum alloy fiber in sequence according to parts by weight for later use, wherein the aggregate has the granularity of 1mm, the aggregate is made of bauxite, kyanite, andalusite, sillimanite, magnesia and flint, the mixed fine powder has the granularity of 0.001mm, the mixed fine powder comprises alumina micropowder, pure calcium aluminate cement, silicon carbide and silicon micropowder, the fiber length of the titanium-aluminum alloy fiber is 40mm, and the materials are that Ti is more than or equal to 20% and Al is more than or equal to 5%;
s2, mixing material: putting the aggregate, the mixed fine powder and the titanium-aluminum alloy fiber weighed in the step S1 into a stirrer for stirring treatment, and uniformly stirring to obtain a required mixed material for later use;
s3, compression molding: slowly pouring the mixed material prepared in the step S2 into a mould, and performing vibration molding to prepare a blank for later use;
s4, drying and demolding: naturally drying the blank pressed in the step S3 for 5-24h, starting demoulding operation after drying is finished, and preparing the demoulded blank for later use;
s5, firing of blanks: and (4) placing the blank obtained in the step (S4) into a high-temperature electric furnace, wherein the firing temperature is 1600 ℃, and the firing time is 5 hours.
The raw materials are weighed according to the proportion, and the prepared titanium-aluminum refractory metal piece has thermal shock stability of more than or equal to 40 times when being cooled by water at 1100 ℃, normal-temperature wear resistance of less than or equal to 0.6cm3 and normal-temperature compressive strength of more than 300 Mpa.
Example four: referring to fig. 1, the invention discloses a titanium-aluminum refractory metal part, which comprises the following raw materials in parts by weight: 10 parts of aggregate, 10 parts of mixed fine powder and 30 parts of titanium-aluminum alloy fiber.
A preparation method of a titanium-aluminum refractory metal piece comprises the following steps:
s1, preparation of raw materials: weighing aggregate, mixed fine powder and titanium-aluminum alloy fiber in sequence according to parts by weight for later use, wherein the particle size of the aggregate is 0.1mm, the aggregate is made of bauxite, kyanite, andalusite, sillimanite, magnesia and flint, the particle size of the mixed fine powder is 0.1mm, the mixed fine powder comprises alumina micropowder, pure calcium aluminate cement, silicon carbide and silica micropowder, the fiber length of the titanium-aluminum alloy fiber is 15mm, and the material is that Ti is more than or equal to 20% and Al is more than or equal to 5%;
s2, mixing material: putting the aggregate, the mixed fine powder and the titanium-aluminum alloy fiber weighed in the step S1 into a stirrer for stirring treatment, and uniformly stirring to obtain a required mixed material for later use;
s3, compression molding: slowly pouring the mixed material prepared in the step S2 into a mould, and vibrating and forming to prepare a sheet blank for later use;
s4, drying and demolding: naturally drying the blank pressed in the step S3 for 5-24h, starting demoulding operation after drying is finished, and preparing the demoulded blank for later use;
s5, firing of blanks: and (4) placing the blank obtained in the step (S4) into a high-temperature electric furnace, wherein the firing temperature is 1600 ℃, and the firing time is 3 hours.
The raw materials are weighed according to the proportion, and the prepared titanium-aluminum refractory metal piece has thermal shock stability of more than or equal to 30 times when being cooled by water at 1100 ℃, normal-temperature wear resistance of less than or equal to 0.7cm3 and normal-temperature compressive strength of more than 400 Mpa.
And (4) judging the standard: through comparison of the four embodiments, the best effect is the second embodiment, and therefore, the second embodiment is selected as the best embodiment, and the specific change of the amount also belongs to the protection scope of the technical scheme.
The invention has the beneficial effects that: the titanium-aluminum refractory metal piece and the preparation method thereof have the advantages that the prepared refractory metal piece is formed by filling inorganic materials with high refractoriness by taking titanium-aluminum alloy fibers as a matrix, performing vibration molding, compression molding and high-temperature sintering, and has excellent ultrahigh wear resistance, erosion resistance, thermal shock resistance and the like, so that the prepared titanium-aluminum refractory metal piece has the using effect in a thermal kiln; the prepared titanium-aluminum refractory metal piece is prepared into a finished product after batching, mixing, pressing and drying firing, the prepared titanium-aluminum refractory metal piece contains titanium-aluminum alloy fibers, the strength and the service performance of the titanium-aluminum refractory metal piece are ensured, and the prepared titanium-aluminum refractory metal piece is suitable for high-temperature wear-resistant parts of various thermotechnical kilns and the application range of the titanium-aluminum refractory metal piece is ensured.
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 titanium-aluminum refractory metal part is characterized by comprising the following raw materials in parts by weight: 10-55 parts of aggregate, 10-44 parts of mixed fine powder and 1-40 parts of titanium-aluminum alloy fiber.
2. The preparation method of the titanium-aluminum refractory metal part is characterized by comprising the following steps of:
s1, preparation of raw materials: weighing aggregate, mixed fine powder and titanium-aluminum alloy fiber in sequence according to parts by weight for later use;
s2, mixing material: putting the aggregate, the mixed fine powder and the titanium-aluminum alloy fiber weighed in the step S1 into a stirrer for stirring treatment, and uniformly stirring to obtain a required mixed material for later use;
s3, compression molding: slowly pouring the mixed material prepared in the step S2 into a mould, and performing vibration molding for later use;
s4, drying and demolding: naturally drying the blank in the step S3, starting demoulding operation after drying is finished, and preparing the demoulded blank for later use;
s5, firing of blanks: and (5) placing the blank obtained in the step (S4) into a high-temperature electric furnace for firing treatment, and cooling treatment after firing to obtain the required titanium-aluminum refractory metal piece.
3. The method of claim 2, wherein the aggregate in step S2 has a particle size of 3-0.1mm, and the aggregate is bauxite, kyanite, andalusite, sillimanite, magnesite, or flint clay.
4. The method of claim 2, wherein the mixed fine powder in step S2 has a particle size of 0.1-0.001mm, and the material of the mixed fine powder comprises an aggregate material and further comprises alumina micropowder, pure calcium aluminate cement, silicon carbide, and silica micropowder.
5. The method for preparing the titanium-aluminum refractory metal piece according to claim 2, wherein the fiber length of the titanium-aluminum alloy fiber in the step S2 is 1-100mm, and the material is Ti being more than or equal to 20% and Al being more than or equal to 5%.
6. The method of claim 2, wherein the natural drying time in step S4 is 5-24 h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117069504A (en) * | 2023-08-21 | 2023-11-17 | 郑州利孚新材料有限公司 | Titanium-aluminum-based ceramic composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
| CN107344859A (en) * | 2017-06-20 | 2017-11-14 | 长兴兴鹰新型耐火建材有限公司 | A kind of Midst density high alumina silicon carbide castable and preparation method thereof |
| CN111072348A (en) * | 2019-12-27 | 2020-04-28 | 三一筑工科技有限公司 | Ultra-high performance concrete material containing coarse aggregate and preparation method thereof |
-
2020
- 2020-08-06 CN CN202010780734.1A patent/CN111996475A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761635A (en) * | 2003-02-07 | 2006-04-19 | 联合矿物产品公司 | Crack-resistant dry refractory |
| CN107344859A (en) * | 2017-06-20 | 2017-11-14 | 长兴兴鹰新型耐火建材有限公司 | A kind of Midst density high alumina silicon carbide castable and preparation method thereof |
| CN111072348A (en) * | 2019-12-27 | 2020-04-28 | 三一筑工科技有限公司 | Ultra-high performance concrete material containing coarse aggregate and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117069504A (en) * | 2023-08-21 | 2023-11-17 | 郑州利孚新材料有限公司 | Titanium-aluminum-based ceramic composite material |
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