CN106825603B - A kind of preparation method of aluminium cladding titanium composite alloy powder - Google Patents
A kind of preparation method of aluminium cladding titanium composite alloy powder Download PDFInfo
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- CN106825603B CN106825603B CN201611266290.XA CN201611266290A CN106825603B CN 106825603 B CN106825603 B CN 106825603B CN 201611266290 A CN201611266290 A CN 201611266290A CN 106825603 B CN106825603 B CN 106825603B
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Classifications
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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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
Abstract
The invention discloses the preparation methods that a kind of aluminium coats titanium composite alloy powder, including selecting suitable titanium salt, surface active composition is added and is restored twice after adjusting PH, it obtains including the suspension of Ti powder, while aluminium salt is added, restored, obtain aluminium cladding titanium composite alloy powder, the present invention improves the antioxygenic property of powder, and the excellent properties for maintaining alloy simultaneously, reduce processing temperature.
Description
Technical field
The invention belongs to materials processing technology fields, and the preparation side of titanium composite alloy powder is coated more particularly, to a kind of aluminium
Method.
Background technology
Titanium be a kind of high intensity, light weight metal material, and rich reserves, in aerospace, biological joint,
The fields such as dentistry are all used widely, and the processing technologies such as powder metallurgy, 3D printing are suitable for.The preparation process of sized spherical titanium powder is
As the hot spot researched and developed both at home and abroad.But titanium valve Jin rows powder metallurgy or 3D Da Yin Time, and usual Hui Yu Dao Difficult are with Chu
Ask Questions are deposited, and Al is easy to generate a kind of thin layer passivating film in air, prevents further oxidation, while titanium aluminum binary system metal
Between compound have density smaller, high specific strength, high specific stiffness, anti-corrosion, wear-resisting, heat safe advantage, becoming the present age navigates
One of the good candidates structural material in the fields such as empty aerospace industry, civilian industry, thus a kind of suitable commercial Application is worked out, together
When be conducive to storage again, the strong alloy material of inoxidizability has very important significance.
Invention content
In order to solve the above technical problems, the present invention provides the preparation methods that aluminium coats titanium composite alloy powder.
The complete technical solution of the present invention includes：
A kind of preparation method of aluminium cladding titanium composite alloy powder, which is characterized in that include the following steps：
1) titanium salt solution for selecting a concentration of 0.1-0.13mol/L is added cationic surfactant and obtains mixed liquor A,
Cationic surfactant is that volume ratio is chlorination benzalkonium：C15Trimethylammonium bromide=1：3 mixture, is heated to 40-
60 DEG C and ultrasonic wave stirring 5-10min spare；
2) it is that 6-7 obtains mixed liquid B that ammonium hydroxide is added into previous solu and adjusts its PH；
3) glucose of a concentration of 0.08mol/L is added dropwise, the 1/4-1/6 that volume is mixed liquid B volume is added, obtains
Mixed liquor C, heating temperature react 10-15min to 80-100 DEG C under the conditions of ultrasonic agitation；
4) the mixed liquor C after reaction is centrifuged 10 minutes with the rotating speed of 5000rpm, the sediment after separation is spent
Ion water washing 3-4 times obtains the suspension D for including Ti powder；
5) the obtained suspension D of step 4 is rejoined in 8L deionized waters, polyvinylpyrrolidone (PVP) is added,
Cationic surfactant is added again and obtains mixed liquor E, is subsequently heated to 40-60 DEG C and ultrasonic wave stirring 15-20min；
6) hydrazine hydrate of a concentration of 0.12mol/L is added, the 1/4-1/6 that volume is mixed liquor E volumes is added, is mixed
Liquid F is then heated to 120-160 DEG C under conditions of continuing ultrasonic agitation；
7) it by the aluminum salt solution of 0.13mol/L and is added in the mixed liquor F of step 6), obtains mixed liquor G reactions 10-
20min,
8) mixed liquor G is centrifuged 10 minutes with the rotating speed of 5000rpm, and the sediment after separation is washed with deionized
3-4 times, 30min is slowly dried at 100-120 DEG C, obtains aluminium cladding titanium composite alloy powder.
The titanium salt and aluminium salt are nitrate or chloride.
The present invention compared with the existing technology the advantages of be：Using chemical reduction method, it is prepared for out titanium valve first, is passed through after
Redisperse is crossed, secondary reduction prepares the titanium valve that surface is coated with aluminium, is transporting in storing process, aluminium surface easily generates antioxygen
The passivation film of change prevents further oxidation, and when carrying out 3D printing, can use the direct composite powder titanium-aluminium alloy into
Row processing, maintains the excellent properties of alloy, simultaneously because aluminium fusing point is relatively low, can melt aluminium first with lower laser power
Element, subsequent aluminium element is reacted with titanium generates titanium-aluminium alloy, reduces processing temperature.
Specific implementation mode
The present invention will be further described With reference to embodiment.
Embodiment 1：
A kind of preparation method of aluminium cladding titanium composite alloy powder, which is characterized in that include the following steps：
1) by the TiCl of 1.5mol410L deionized waters are dissolved in, TiCl is configured to4Aqueous solution is added cationic surface and lives
Property agent obtains mixed liquor A, and cationic surfactant is that volume ratio is chlorination benzalkonium：C15Trimethylammonium bromide=1：3
Mixture, be heated to 40-60 DEG C and ultrasonic wave stirring 5-10min it is spare；
2) it is that 6-7 obtains mixed liquid B that ammonium hydroxide is added into previous solu and adjusts its PH；
3) glucose of a concentration of 0.08mol/L is added dropwise, the 1/4-1/6 that volume is mixed liquid B volume is added, obtains
Mixed liquor C, heating temperature react 10-15min to 80-100 DEG C under the conditions of ultrasonic agitation；
4) the mixed liquor C after reaction is centrifuged 10 minutes with the rotating speed of 5000rpm, the sediment after separation is spent
Ion water washing 3-4 times obtains the suspension D for including Ti powder；
5) the obtained suspension D of step 4 is rejoined in 8L deionized waters, the polyvinyl pyrrole that K values are 30 is added
Alkanone (PVP) is added cationic surfactant and obtains mixed liquor E again, is subsequently heated to 40-60 DEG C and ultrasonic wave stirring
15-20min；
6) hydrazine hydrate of a concentration of 0.12mol/L is added, the 1/4-1/6 that volume is mixed liquor E volumes is added, is mixed
Liquid F is then heated to 120-160 DEG C under conditions of continuing ultrasonic agitation；
7) by the AlCl of 0.3mol31.78L deionized waters are dissolved in, AlCl is configured to3Aqueous solution, and it is added to step 6)
Mixed liquor F in reaction 10-20min obtain mixed liquor G,
8) mixed liquor G is centrifuged 10 minutes with the rotating speed of 5000rpm, and the sediment after separation is washed with deionized
3-4 times, 30min is slowly dried at 100-120 DEG C, obtains aluminium cladding titanium composite alloy powder.
Embodiment 2：
Using the chloride in the nitrate substitution embodiment 1 of Ti and Al, while being replaced using anion surfactant
Cationic surfactant, other technological parameters are same as Example 1.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.
Claims (2)
1. a kind of preparation method of aluminium cladding titanium composite alloy powder, which is characterized in that include the following steps：
1) titanium salt solution for selecting a concentration of 0.1-0.13mol/L is added cationic surfactant and obtains mixed liquor A, sun from
Sub- surfactant is that volume ratio is chlorination benzalkonium：Pentadecyl trimethylammonium bromide=1：3 mixture, is heated to
40-60 DEG C and ultrasonic wave stirring 5-10min spare；
2) it is that 6-7 obtains mixed liquid B that ammonium hydroxide is added into mixed liquor A and adjusts its PH；
3) glucose of a concentration of 0.08mol/L is added dropwise, the 1/4-1/6 that volume is mixed liquid B volume is added, is mixed
Liquid C, heating temperature react 10-15min to 80-100 DEG C under the conditions of ultrasonic agitation；
4) the mixed liquor C after reaction is centrifuged 10 minutes with the rotating speed of 5000rpm, by the sediment deionization after separation
Water washing 3-4 times obtains the suspension D for including Ti powder；
5) the obtained suspension D of step 4 is rejoined in 8L deionized waters, polyvinylpyrrolidone (PVP) is added, again
Cationic surfactant is added and obtains mixed liquor E, is subsequently heated to 40-60 DEG C and ultrasonic wave stirring 15-20min；
6) hydrazine hydrate of a concentration of 0.12mol/L is added, the 1/4-1/6 that volume is mixed liquor E volumes is added, obtains mixed liquor F,
Then 120-160 DEG C is heated under conditions of continuing ultrasonic agitation；
7) it by the aluminum salt solution of 0.13mol/L and is added in the mixed liquor F of step 6), obtains mixed liquor G reaction 10-20min,
8) mixed liquor G is centrifuged 10 minutes with the rotating speed of 5000rpm, and 3-4 is washed with deionized in the sediment after separation
It is secondary, 30min is slowly dried at 100-120 DEG C, obtains aluminium cladding titanium composite alloy powder.
2. the preparation method of aluminium cladding titanium composite alloy powder as described in claim 1, which is characterized in that the titanium salt and aluminium salt
For nitrate or chloride.
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| CN106825603B true CN106825603B (en) | 2018-11-02 |
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| CN107020388A (en) * | 2016-12-31 | 2017-08-08 | 西安交通大学青岛研究院 | A kind of preparation method of 3D printing TiAl intermetallic compound powder |
| CN109759581A (en) * | 2019-01-17 | 2019-05-17 | 深圳市众诚达应用材料科技有限公司 | A kind of 3D printing dusty material and preparation method thereof and a kind of 3D printing product |
| CN110238389B (en) * | 2019-07-30 | 2021-01-26 | 西北有色金属研究院 | Titanium and titanium alloy particles coated with low-hardness metal on surfaces and preparation method thereof |
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| JP3716350B2 (en) * | 1994-12-28 | 2005-11-16 | 同和鉱業株式会社 | Silver powder and method for producing the same |
| JP2003089802A (en) * | 2001-09-18 | 2003-03-28 | National Institute For Materials Science | Method for manufacturing mechanically alloyed powder |
| US8304362B2 (en) * | 2006-08-30 | 2012-11-06 | Umicore Ag & Co. Kg | Core/shell-type catalyst particles and methods for their preparation |
| CN100496814C (en) * | 2007-04-28 | 2009-06-10 | 北京有色金属研究总院 | Nanometer Ni cladded aluminium powder preparing method |
| CN101428345B (en) * | 2007-11-09 | 2010-08-11 | 北京有色金属研究总院 | Method of manufacturing ultrafine molybdenum powder or ultrafine tungsten powder surface clad metal copper |
| CN102120259B (en) * | 2011-01-28 | 2012-11-07 | 广州有色金属研究院 | Preparation method of equimolar Ti/Ni coated composite powder with nuclear shell structure |
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