CN109013729A - A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy - Google Patents
A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy Download PDFInfo
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- CN109013729A CN109013729A CN201810954780.1A CN201810954780A CN109013729A CN 109013729 A CN109013729 A CN 109013729A CN 201810954780 A CN201810954780 A CN 201810954780A CN 109013729 A CN109013729 A CN 109013729A
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- aluminum oxide
- oxide dispersion
- copper alloy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Extrusion Of Metal (AREA)
Abstract
A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy, belongs to powder metallurgy new material technology field.The processing step is as follows: using the sintered Cu-Al of forming2O3Alloy blank；By Cu-Al2O3Alloy blank is made annealing treatment first, hydrogen atmosphere protection；Then by the Cu-Al after annealing2O3Alloy blank carries out hydrostatic extrusion processing, obtains aluminum oxide dispersion copper alloy.Finally by the Cu-Al after hydrostatic extrusion2O3Alloy carries out water-cooled process.The invention has the advantages that being suitable for the extrusion process of aluminum oxide dispersion copper alloy of the alumina content between 0.08% ~ 15.00%, the disadvantages of product is easy to crack, performance profile is uneven, deformation size is difficult to control, is solved in traditional hot extrusion process, production cost is reduced, the production efficiency of aluminum oxide dispersion copper alloy is improved.The present invention provides possibility for the industrialized production of aluminum oxide dispersion copper alloy.
Description
Technical field
The invention belongs to copper alloy with high strength and high conductivity processing technique fields, and in particular to a kind of aluminum oxide dispersion copper alloy it is quiet
Liquid extrusion process.
Background technique
Aluminum oxide dispersion copper alloy has high intensity, high conductivity, excellent softening power resistant to high temperatures, is widely used in height
The occasions such as warm welding electrode, high-voltage switch gear contact material and high-intensitive anti-electrical wear power line, are that current high-temperature behavior is best
Copper alloy, played an important role in social and economic construction.
The copper alloy of alumina content disperse at present mainly use hot extrusion technique carry out deformation processing, but due to Copper substrate with
Thermal expansion coefficient difference is larger between aluminium oxide reinforced phase, while traditional hot extrusion technique is due to surrounding discontinuity, oxygen supply
Change the processing of aluminium content dispersion copper alloy extrusion and bring many problems, as extruded product is easy to crack, performance profile is uneven, deformation ruler
The disadvantages of very little uncontrollable, related effective means can solve above-mentioned all problems not yet both at home and abroad at present.
Summary of the invention
The purpose of the present invention is to solve aluminum oxide dispersion copper alloy, product is easy to crack in extrusion process, performance profile
Unevenly, the problems such as deformation size is difficult to control, provides a kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy, and this method is suitable
For the extrusion process of aluminum oxide dispersion copper alloy of the alumina content between 0.08% ~ 15.00%, having property of obtained alloy
The uniform and stable feature of energy.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy, specific step is as follows for the technique:
Step 1: Cu-Al sintered to forming2O3Alloy blank is made annealing treatment under hydrogen atmosphere protection；
Step 2: the Cu-Al that step 1 is obtained2O3Alloy blank carries out hydrostatic extrusion processing, obtains ODS copper-base alloys conjunction
Gold；
Step 3: to the Cu-Al after hydrostatic extrusion2O3Alloy carries out water-cooled process.
The beneficial effect of the present invention compared with the existing technology is:
(1) aluminum oxide dispersion copper alloy is prepared using hydrostatic extrusion technology, solves aluminum oxide dispersion copper alloy in extrusion process
The disadvantages of middle product is easy to crack, performance profile is uneven, deformation size is difficult to control, improves the life of aluminum oxide dispersion copper alloy
Efficiency is produced, and then has saved production cost.
(2) present invention provides possibility to realize that aluminum oxide dispersion copper alloy is produced in enormous quantities.
Specific embodiment
Below with reference to embodiment, further description of the technical solution of the present invention, and however, it is not limited to this, all right
Technical solution of the present invention is modified or equivalent replacement, without departing from the spirit of the technical scheme of the invention range, should all cover
Among protection scope of the present invention.
Specific embodiment 1: present embodiment record be a kind of aluminum oxide dispersion copper alloy hydrostatic extrusion technique,
Specific step is as follows for the technique:
Step 1: Cu-Al sintered to forming2O3Alloy blank is made annealing treatment under hydrogen atmosphere protection；
Step 2: the Cu-Al that step 1 is obtained2O3Alloy blank carries out hydrostatic extrusion processing, obtains ODS copper-base alloys conjunction
Gold；
Step 3: to the Cu-Al after hydrostatic extrusion2O3Alloy carries out water-cooled process.
Specific embodiment 2: a kind of hydrostatic extrusion work of aluminum oxide dispersion copper alloy described in specific embodiment one
Skill, in step 1, the Cu-Al2O3Al in alloy blank2O3Mass percentage be 0.08% ~ 15.00%.
Specific embodiment 3: a kind of hydrostatic extrusion work of aluminum oxide dispersion copper alloy described in specific embodiment one
Skill, in step 1, the annealing temperature is 200 ~ 800 DEG C, and the time is 2 ~ 40 hours.
Specific embodiment 4: a kind of hydrostatic extrusion work of aluminum oxide dispersion copper alloy described in specific embodiment one
Skill, in step 2, the preheating temperature of the hydrostatic extrusion processing mould therefor is 150 DEG C ~ 500 DEG C, the preheating temperature of extrusion cylinder
Degree is 300 DEG C ~ 800 DEG C, and deformation ratio is 2.0 ~ 30.0.
Specific embodiment 5: a kind of hydrostatic extrusion work of aluminum oxide dispersion copper alloy described in specific embodiment one
Skill, in step 3, the water-cooled process water temperature is 10 DEG C ~ 100 DEG C, and the processing time is 1 ~ 3 hour.
Embodiment 1:
The preparation of alumina content disperse copper alloy powder (alumina content 0.60%)
(1) using the sintered Cu-Al of forming2O3Alloy blank, wherein Al2O3Mass percentage be 0.60%；
(2) by Cu-0.60%Al2O3Alloy blank is made annealing treatment first, and annealing temperature is 300 DEG C, and the time is 5 hours,
Hydrogen atmosphere protection；
(3) by the Cu-0.60%Al after annealing2O3Alloy blank carries out hydrostatic extrusion processing, mold preheating temperature 200
DEG C, the preheating temperature of extrusion cylinder is 350 DEG C, and deformation ratio 25.0 obtains Cu-0.60%Al2O3Alloy.
(4) by the Cu-0.60%Al after hydrostatic extrusion2O3Alloy carries out water-cooled process, and the water cooling time is 1 hour.
Embodiment 2:
The preparation of alumina content disperse copper alloy powder (alumina content 1.00%)
(1) using the sintered Cu-Al of forming2O3Alloy blank, wherein Al2O3Mass percentage be 1.00%；
(2) by Cu-1.00%Al2O3Alloy blank is made annealing treatment first, and annealing temperature is 400 DEG C, and the time is 6 hours,
Hydrogen atmosphere protection；
(3) by the Cu-1.00%Al after annealing2O3Alloy blank carries out hydrostatic extrusion processing, mold preheating temperature 250
DEG C, the preheating temperature of extrusion cylinder is 450 DEG C, and deformation ratio 20.0 obtains Cu-1.00%Al2O3Alloy.
(4) by the Cu-1.00%Al after hydrostatic extrusion2O3Alloy carries out water-cooled process, and the water cooling time is 2 hours.
Embodiment 3:
The preparation of alumina content disperse copper alloy powder (alumina content 3.00%)
(1) using the sintered Cu-Al of forming2O3Alloy blank, wherein Al2O3Mass percentage be 3.00%；
(2) by Cu-3.00%Al2O3Alloy blank is made annealing treatment first, and annealing temperature is 450 DEG C, and the time is 8 hours,
Hydrogen atmosphere protection；
(3) by the Cu-3.00%Al after annealing2O3Alloy blank carries out hydrostatic extrusion processing, mold preheating temperature 350
DEG C, the preheating temperature of extrusion cylinder is 550 DEG C, and deformation ratio 18.0 obtains Cu-3.00%Al2O3Alloy.
(4) by the Cu-3.00%Al after hydrostatic extrusion2O3Alloy carries out water-cooled process, and the water cooling time is 3 hours.
Claims (5)
1. a kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy, it is characterised in that: specific step is as follows for the technique:
Step 1: Cu-Al sintered to forming2O3Alloy blank is made annealing treatment under hydrogen atmosphere protection；
Step 2: the Cu-Al that step 1 is obtained2O3Alloy blank carries out hydrostatic extrusion processing, obtains ODS copper-base alloys conjunction
Gold；
Step 3: to the Cu-Al after hydrostatic extrusion2O3Alloy carries out water-cooled process.
2. a kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy according to claim 1, it is characterised in that: step 1
In, the Cu-Al2O3Al in alloy blank2O3Mass percentage be 0.08% ~ 15.00%.
3. a kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy according to claim 1, it is characterised in that: step 1
In, the annealing temperature is 200 ~ 800 DEG C, and the time is 2 ~ 40 hours.
4. a kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy according to claim 1, it is characterised in that: step 2
In, the preheating temperature of the described hydrostatic extrusion processing mould therefor is 150 DEG C ~ 500 DEG C, the preheating temperature of extrusion cylinder is 300 DEG C ~
800 DEG C, deformation ratio is 2.0 ~ 30.0.
5. a kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy according to claim 1, it is characterised in that: step 3
In, the water-cooled process water temperature is 10 DEG C ~ 100 DEG C, and the processing time is 1 ~ 3 hour.
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| CN201810954780.1A CN109013729A (en) | 2018-08-21 | 2018-08-21 | A kind of hydrostatic extrusion technique of aluminum oxide dispersion copper alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322922A (en) * | 2020-11-14 | 2021-02-05 | 中国兵器科学研究院宁波分院 | Powder metallurgy preparation method of dispersion copper-copper laminated composite material |
| CN112355078A (en) * | 2020-10-26 | 2021-02-12 | 有研工程技术研究院有限公司 | Aluminum oxide dispersion strengthened copper alloy pipe and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355078A (en) * | 2020-10-26 | 2021-02-12 | 有研工程技术研究院有限公司 | Aluminum oxide dispersion strengthened copper alloy pipe and preparation method and application thereof |
| CN112322922A (en) * | 2020-11-14 | 2021-02-05 | 中国兵器科学研究院宁波分院 | Powder metallurgy preparation method of dispersion copper-copper laminated composite material |
| CN112322922B (en) * | 2020-11-14 | 2022-04-22 | 中国兵器科学研究院宁波分院 | Powder metallurgy preparation method of dispersion copper-copper laminated composite material |
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