CN110331308A - The preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning - Google Patents
The preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning Download PDFInfo
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- CN110331308A CN110331308A CN201910756571.0A CN201910756571A CN110331308A CN 110331308 A CN110331308 A CN 110331308A CN 201910756571 A CN201910756571 A CN 201910756571A CN 110331308 A CN110331308 A CN 110331308A
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- tellurium copper
- composite material
- copper composite
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- tellurium
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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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
- B22F3/101—Changing atmosphere
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention discloses a kind of preparation methods of easy alumina dispersion-strenghtened tellurium copper composite material of turning, its processing step includes: pretreatment, equal static pressure and internal oxidition sintering, reductive sintered and plastic deformation, introducing of this method due to nano aluminium oxide ceramic phase, so that the composite material has the characteristics of dispersion-strengtherning, its intensity is set to be apparently higher than common tellurium copper alloy, simultaneously, due to nano aluminium oxide ceramic phase high temperature stability performance with higher, make its softening performance resistant to high temperatures will be obviously due to common tellurium copper alloy, its hot mastication temperature is up to 800~900 DEG C, remain the easy turning feature of tellurium copper alloy itself again simultaneously, so that its is easy to process and can be applied under higher temperature be on active service.
Description
Technical field
The present invention relates to metal material processing technology field, specifically a kind of easy alumina dispersion-strenghtened tellurium copper of turning is compound
The preparation method of material.
Background technique
Tellurium copper alloy material has taken into account fabulous free cutting property and excellent conduction, heating conduction, is provided simultaneously with anti-corruption
Erosion and anti-electric ablation property, cold and hot working better performances can be forged, be cast, pressing drawing, punching molding.Product can be processed into
The profiles such as plate, piece, stick, silk, pipe and a variety of profile shapes, are limited by the limitation of material itself, and tellurium copper alloy is difficult to avoid that following lack
Point:
(1) elevated temperature strength is poor
Tellurium copper alloy has good turning ability, easily softens under the high temperature conditions, though there is good electric conductivity
And processing performance, but it is limited by the too low drawback of softening temperature, cause its range that can be on active service to be substantially reduced
(2) intensity is lower
Tellurium copper alloy is more soft crisp, and intensity is lower, is not able to satisfy military service under the conditions of higher stress.
Summary of the invention
Goal of the invention: in order to solve the deficiencies in the prior art, the present invention provides a kind of easy turning is alumina dispersion-strenghtened
On the one hand the preparation method of tellurium copper composite material improves the tellurium copper strength of materials, overcomes it by the aluminium oxide using Dispersed precipitate
On the other hand soft crisp feature improves it using elevated temperature strength while keeping its good cutting, meets it more complicated
Under the conditions of use.
Technical solution: in order to achieve the goal above, a kind of easy alumina dispersion-strenghtened tellurium copper of turning of the present invention is multiple
The preparation method of condensation material, it the following steps are included:
(1) it pre-processes
Tellurium copper is used into aerosol legal system powder, is ground after aluminium powder is mixed with above-mentioned tellurium copper powder by ball mill, ball
Mixed-powder is dried after the completion of grinding machine grinding；
(2) static pressure and the internal oxidition sintering such as
Using room temperature isostatic cool pressing, bar stock is made, carries out vacuum atmosphere sintering later, is passed through oxygen during the sintering process.
(3) reductive sintered
Vacuum atmosphere is sintered again, is passed through hydrogen, and aluminium oxide tellurium copper composite material bar stock is made.
(4) it is plastically deformed
Bar stock obtained is squeezed and deformed, aluminium oxide tellurium copper composite board or bar is made after cutting slitting.
As present invention further optimization, the content of tellurium is 0.4%~0.7% in tellurium copper described in step (1),
Yu Weitong.
As present invention further optimization, the granularity for being made into the tellurium copper of powder in step (1) is 200 mesh~400 mesh.
As present invention further optimization, the mass percent of aluminium powder described in step (1) is 0.1%~1%.
As present invention further optimization, for ball mill when being ground, ratio of grinding media to material is 6~10:1, ball in step (1)
Time consuming is 1~5h, and ball-milling medium is dehydrated alcohol.
As present invention further optimization, drying is to dry 30min at 110 DEG C in step (1).
As present invention further optimization, the pressure in step (2) when isostatic cool pressing processing is 220~370MPa, is protected
The pressure time is 3~15min, and the diameter of bar stock obtained is after isostatic cool pressing processingA height of 500mm.
As present invention further optimization, the temperature of vacuum atmosphere sintering is 900~990 DEG C in step (2), sintering
Time is 1~5h, is passed through 0.2MPa~1MPa high purity oxygen gas in sintering process.
As present invention further optimization, when vacuum atmosphere is sintered again in step (3), sintering temperature is 900~950
DEG C, soaking time is 0.5~4h, is passed through 0.2MPa~1MPa hydrogen.
As present invention further optimization, the diameter of aluminium oxide tellurium copper composite material bar stock obtained is in step (3)A height of 500mm.
The utility model has the advantages that a kind of preparation method of easy alumina dispersion-strenghtened tellurium copper composite material of turning of the present invention,
Compared with prior art, it has the advantage that
(1) by internal oxidition sintering, reductive sintered process, make the introducing of nano aluminium oxide ceramic phase, so that this is compound
Material has the characteristics of dispersion-strengtherning, its intensity is made to be apparently higher than common tellurium copper alloy；
(2) due to nano aluminium oxide ceramic phase high temperature stability performance with higher, its softening performance resistant to high temperatures is made to want bright
It is aobvious due to common tellurium copper alloy, hot mastication temperature is up to 800~900 DEG C, while the easy vehicle that remains tellurium copper alloy again itself
Feature is cut, so that its is easy to process and can be applied under higher temperature be on active service.
Specific embodiment
Combined with specific embodiments below, the present invention is furture elucidated.
A kind of preparation method of easy alumina dispersion-strenghtened tellurium copper composite material of turning of the present invention, its technique step
Suddenly include: pretreatment, etc. static pressure and internal oxidition sintering, it is reductive sintered and plastic deformation.
Embodiment 1
(1) it pre-processes
It is 0.4% by tellurium content, remaining uses aerosol legal system powder for the tellurium copper of copper, and the granularity for being made into the tellurium copper of powder is
200 mesh are ground after mixing the aluminium powder that mass percent is 0.1% with above-mentioned tellurium copper powder by ball mill, ball mill
When being ground, ratio of grinding media to material 6:1, Ball-milling Time 1h, ball-milling medium are dehydrated alcohol, will be mixed after the completion of ball mill grinding
It closes powder and dries 30min at 110 DEG C；
(2) static pressure and the internal oxidition sintering such as
Using room temperature isostatic cool pressing, the when pressure of isostatic cool pressing processing is 220MPa, dwell time 3min, isostatic cool pressing
The diameter of bar stock obtained is after processingA height of 500mm carries out vacuum atmosphere sintering later, vacuum atmosphere sintering
Temperature is 900 DEG C, and the time of sintering is 1h, is passed through 0.2MPa high purity oxygen gas in sintering process；
(3) reductive sintered
Vacuum atmosphere is sintered again, and sintering temperature is 900 DEG C, and soaking time 0.5h is passed through 0.2MPa hydrogen, is made straight
Diameter isThe aluminium oxide tellurium copper composite material bar stock of a height of 500mm.
(4) it is plastically deformed
Bar stock obtained is squeezed and deformed, squeezing temperature is 900 DEG C, and obtained diameter is after cutting slittingIt is high
For the aluminium oxide tellurium copper composite bar of 500mm, performance is as follows:
Table 1 is aluminium oxide tellurium copper composite property table after embodiment 1
Embodiment 2
(1) it pre-processes
It is 0.5% by tellurium content, remaining uses aerosol legal system powder for the tellurium copper of copper, and the granularity for being made into the tellurium copper of powder is
300 mesh are ground after mixing the aluminium powder that mass percent is 0.5% with above-mentioned tellurium copper powder by ball mill, ball mill
When being ground, ratio of grinding media to material 8:1, Ball-milling Time 3h, ball-milling medium are dehydrated alcohol, will be mixed after the completion of ball mill grinding
It closes powder and dries 30min at 110 DEG C；
(2) static pressure and the internal oxidition sintering such as
Using room temperature isostatic cool pressing, the when pressure of isostatic cool pressing processing is 300MPa, dwell time 10min, Leng Dengjing
The diameter of bar stock obtained is after pressure processingA height of 500mm carries out vacuum atmosphere sintering, vacuum atmosphere sintering later
Temperature be 950 DEG C, time of sintering is 4h, is passed through 0.5MPa high purity oxygen gas in sintering process；
(3) reductive sintered
Vacuum atmosphere is sintered again, and sintering temperature is 930 DEG C, and soaking time 2h is passed through 0.6MPa hydrogen, and diameter is made
ForThe aluminium oxide tellurium copper composite material bar stock of a height of 500mm.
(4) it is plastically deformed
Bar stock obtained is squeezed and deformed, squeezing temperature is 920 DEG C, width is made as 50mm after cutting slitting, thickness is
2mm, a length of 500mm aluminium oxide tellurium copper composite board, performance are as follows:
Table 2 is aluminium oxide tellurium copper composite property table after embodiment 1
Embodiment 3
(1) it pre-processes
It is 0.7% by tellurium content, remaining uses aerosol legal system powder for the tellurium copper of copper, and the granularity for being made into the tellurium copper of powder is
400 mesh are ground after mixing the aluminium powder that mass percent is 1% with above-mentioned tellurium copper powder by ball mill, and ball mill exists
When being ground, ratio of grinding media to material 10:1, Ball-milling Time 5h, ball-milling medium are dehydrated alcohol, will be mixed after the completion of ball mill grinding
It closes powder and dries 30min at 110 DEG C；
(2) static pressure and the internal oxidition sintering such as
Using room temperature isostatic cool pressing, the when pressure of isostatic cool pressing processing is 370MPa, dwell time 15min, Leng Dengjing
The diameter of bar stock obtained is after pressure processingA height of 500mm carries out vacuum atmosphere sintering, vacuum atmosphere sintering later
Temperature be 990 DEG C, time of sintering is 5h, is passed through 1MPa high purity oxygen gas in sintering process；
(3) reductive sintered
Vacuum atmosphere is sintered again, and sintering temperature is 950 DEG C, soaking time 4h, is passed through 1MPa hydrogen, obtained diameter isThe aluminium oxide tellurium copper composite material bar stock of a height of 500mm.
(4) it is plastically deformed
Bar stock obtained is squeezed and deformed, squeezing temperature is 960 DEG C, and obtained diameter is after cutting slittingIt is high
For the aluminium oxide tellurium copper composite bar of 500mm, performance such as following table.
Table 3 is aluminium oxide tellurium copper composite property table after embodiment 1
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.All bases
The equivalent changes or modifications that spirit of the invention is made, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning, which is characterized in that it includes following step
It is rapid:
(1) it pre-processes
Tellurium copper is used into aerosol legal system powder, is ground after aluminium powder is mixed with above-mentioned tellurium copper powder by ball mill, ball mill
Mixed-powder is dried after the completion of grinding；
(2) static pressure and the internal oxidition sintering such as
Using room temperature isostatic cool pressing, bar stock is made, carries out vacuum atmosphere sintering later, is passed through oxygen during the sintering process.
(3) reductive sintered
Vacuum atmosphere is sintered again, is passed through hydrogen, and aluminium oxide tellurium copper composite material bar stock is made.
(4) it is plastically deformed
Bar stock obtained is squeezed and deformed, aluminium oxide tellurium copper composite board or bar is made after cutting slitting.
2. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: the content of tellurium is 0.4%~0.7% in tellurium copper described in step (1), remaining is copper.
3. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: the granularity for being made into the tellurium copper of powder in step (1) is 200 mesh~400 mesh.
4. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: the mass percent of aluminium powder described in step (1) is 0.1%~1%.
5. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: for ball mill when being ground, ratio of grinding media to material is 6~10:1 in step (1), and Ball-milling Time is 1~5h, and ball-milling medium is anhydrous
Ethyl alcohol.
6. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: drying is to dry 30min at 110 DEG C in step (1).
7. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: pressure when isostatic cool pressing is handled in step (2) is 220~370MPa, and the dwell time is 3~15min, isostatic cool pressing processing
The diameter of bar stock obtained is afterwardsA height of 500mm.
8. the preparation method of the alumina dispersion-strenghtened tellurium copper composite material of easy turning according to claim 1, feature exist
In: the temperature that vacuum atmosphere is sintered in step (2) is 900~990 DEG C, and the time of sintering is 1~5h, is passed through in sintering process
0.2MPa~1MPa high purity oxygen gas.
9. a kind of preparation method of aluminium oxide chromium-zirconium-copper composite material according to claim 1, it is characterised in that: step
(3) in again vacuum atmosphere be sintered when, sintering temperature be 900~950 DEG C, soaking time be 0.5~4h, be passed through 0.2MPa~
1MPa hydrogen.
10. a kind of preparation method of aluminium oxide chromium-zirconium-copper composite material according to claim 1, it is characterised in that: step
(3) diameter of aluminium oxide tellurium copper composite material bar stock obtained is inA height of 500mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715884A (en) * | 2020-05-22 | 2020-09-29 | 陕西斯瑞新材料股份有限公司 | Preparation method of low-gas-content copper-tellurium alloy spherical powder |
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| CN101121974A (en) * | 2007-09-19 | 2008-02-13 | 洛阳理工学院 | High-strength high-conduction strengthened dispersion copper alloy and preparation method thereof |
| CN101195879A (en) * | 2006-12-08 | 2008-06-11 | 中国船舶重工集团公司第七二五研究所 | Al2O3dispersion strengthening copper alloy and method for producing the same |
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2019
- 2019-08-16 CN CN201910756571.0A patent/CN110331308A/en active Pending
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| CN101195879A (en) * | 2006-12-08 | 2008-06-11 | 中国船舶重工集团公司第七二五研究所 | Al2O3dispersion strengthening copper alloy and method for producing the same |
| CN101121974A (en) * | 2007-09-19 | 2008-02-13 | 洛阳理工学院 | High-strength high-conduction strengthened dispersion copper alloy and preparation method thereof |
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| 盛国裕等: "《金属材料及其试验方法》", 30 June 2012, 中国质检出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715884A (en) * | 2020-05-22 | 2020-09-29 | 陕西斯瑞新材料股份有限公司 | Preparation method of low-gas-content copper-tellurium alloy spherical powder |
| CN111715884B (en) * | 2020-05-22 | 2022-08-23 | 陕西斯瑞新材料股份有限公司 | Preparation method of low-gas-content copper-tellurium alloy spherical powder |
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Address after: 215400 No.18, Xingye South Road, Taicang Economic Development Zone, Suzhou City, Jiangsu Province Applicant after: SUZHOU KINKOU COPPER INDUSTRY Co.,Ltd. Address before: 215400 No.18, Xingye South Road, Taicang Economic Development Zone, Nanjing, Jiangsu Province Applicant before: SUZHOU KINKOU COPPER INDUSTRY Co.,Ltd. |
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