CN107760901A - A kind of preparation method of Cu-base composites - Google Patents
A kind of preparation method of Cu-base composites Download PDFInfo
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- CN107760901A CN107760901A CN201711011729.9A CN201711011729A CN107760901A CN 107760901 A CN107760901 A CN 107760901A CN 201711011729 A CN201711011729 A CN 201711011729A CN 107760901 A CN107760901 A CN 107760901A
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- ball
- base composites
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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
- C22C32/0047—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 carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—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 carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
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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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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of preparation method of Cu-base composites, methods described carries out ball milling using copper powder and carbonization zirconium powder as raw material, using ball mill to raw material, and ball-milling medium is zirconium carbide ball, and high-purity argon gas is filled with ball grinder in mechanical milling process and is sealed.Mixed-powder is put into graphite jig after ball milling, is sintered using vacuum hotpressing stove, constant temperature is kept in maximum sintering temperature and applies pressure.Terminate rear release, cool to room temperature with the furnace, prepared material is Cu-base composites of the present invention.The inventive method is simple, and the Cu-base composites of preparation have excellent abrasion resistance properties and workability energy, is hit and the part work condition environment easy to wear suitable for making.
Description
Technical field
The present invention relates to materials synthesis preparation field, more particularly to a kind of preparation method of Cu-base composites.
Technical background
Copper product has good conduction, heat conduction and performance easy to process, is widely used in bearing, bushing, gear, joint
With friction etc. on component.However, due to pure copper material low intensity, wearing no resistance, cause the life-span shorter, use range is limited
System.In some specific areas, it is necessary to improve its mechanical property and mechanical performance while the metallic character for retaining pure copper material.
Zirconium carbide is a kind of high hard material with metal properties, and electrical conductivity is up to 2.3 × 104S/cm, conductive capability with
Metal phase is worked as, and has preferable application prospect in improvement metal material mechanics aspect of performance as the second phase is strengthened.It is but now big
Portion of techniques need to be carried out in preparation process in nitrogen atmosphere, dangerous high, complex process, and control parameter is more, it is necessary to accurately control
Reaction temperature processed, it is difficult to ensure product quality.
The content of the invention
Based on this, the invention discloses a kind of preparation method for counting composite, the described method comprises the following steps：
S100, by mixed powder be put into ball grinder add ball-milling medium carry out ball milling；
S200, the mixed powder after ball milling is put into graphite jig, is then together placed in vacuum hotpressing stove and carries out
Sintering；
S300, terminate rear release, cool to room temperature with the furnace, prepared material is Cu-base composites.
The method disclosed in the present is easy, and the technological parameter of required control is less, overcomes other method technological parameter
The shortcomings that control is complicated, product quality is difficult to ensure that.
Embodiment
In one embodiment, the invention discloses it is a kind of count composite preparation method, methods described include with
Lower step：
S100, by mixed powder be put into ball grinder add ball-milling medium carry out ball milling；
S200, the mixed powder after ball milling is put into graphite jig, is then together placed in vacuum hotpressing stove and carries out
Sintering；
S300, terminate rear release, cool to room temperature with the furnace, prepared material is Cu-base composites.
Method described in the present embodiment is simple, and the Cu-base composites of preparation have excellent abrasion resistance properties and Yi Jia
Work performance, it is hit and the part work condition environment easy to wear suitable for making.
In one embodiment, the mixed powder composition in the step S100 is copper powder and carbonization zirconium powder, wherein copper powder
99.5~92.5: 0.5~7.5 matched by mass percentage with carbonization zirconium powder.
In one embodiment, the particle diameter distribution of the copper powder is 3~5 μm, purity 99.97%；The grain of carbonization zirconium powder
Footpath is distributed as 3~5 μm, purity 99.99%.
In one embodiment, Ball-milling Time is 1~3 hour in the step S100, and ball-milling medium is ZrC balls, ball milling
Tank rotating speed is 200r/min, is filled with high-purity argon gas in mechanical milling process in ball grinder and seals.
In one embodiment, maximum sintering temperature is 850~900 DEG C during vacuum heating-press sintering in the step S200,
Heating rate is 15 DEG C/min.
In one embodiment, in the step S200 composite maximum sintering temperature sinter keep constant temperature 10~
15min, apply 30~40MPa pressure while sintering to vacuum hotpressing stove.
In one embodiment, by copper powder (particle diameter distribution is 3~5 μm, purity 99.97%) and carbonization zirconium powder (particle diameter
3~5 μm being distributed as, purity 99.99%) mixed powder is put into ball grinder ball milling 2h, ball milling at 99.5: 0.5 by mass percentage
Medium is zirconium carbide ball, ball powder ratio 5: 1, rotating speed 200r/min, and high-purity argon gas is filled with ball grinder simultaneously in mechanical milling process
Sealing；Mixed powder is put into graphite jig after ball milling, is together placed in vacuum hotpressing stove and is sintered, maximum sintering temperature
For 850 DEG C, heating rate is 15 DEG C/min；10min is incubated in maximum sintering temperature and applies 30MPa pressure.Sintering terminates
Release afterwards, cool to room temperature with the furnace, the micro-vickers hardness of prepared Cu-base composites is 138.9HV0.2, in load
Coefficient of friction and wear extent are divided into 0.613,7.38 × 10 under the conditions of 20N, wearing- in period 10min-2mm3。
In one embodiment, by copper powder (particle diameter distribution is 3~5 μm, purity 99.97%) and carbonization zirconium powder (particle diameter
3~5 μm being distributed as, purity 99.99%) mixed powder is put into ball grinder ball milling 2h, ball milling at 96.0: 4.0 by mass percentage
Medium is zirconium carbide ball, ball powder ratio 5: 1, rotating speed 200r/min, and high-purity argon gas is filled with ball grinder simultaneously in mechanical milling process
Sealing；Mixed powder is put into graphite jig after ball milling, is together placed in vacuum hotpressing stove and is sintered, maximum sintering temperature
For 875 DEG C, heating rate is 15 DEG C/min；12.5min is incubated in maximum sintering temperature and applies 35MPa pressure.Sintering knot
Release after beam, cool to room temperature with the furnace, the micro-vickers hardness of prepared Cu-base composites is 150.1HV0.2, in load
Coefficient of friction and wear extent are divided into 0.675,7.12 × 10 under the conditions of 20N, wearing- in period 10min-2mm3。
In one embodiment, by copper powder (particle diameter distribution is 3~5 μm, purity 99.97%) and carbonization zirconium powder (particle diameter
3~5 μm being distributed as, purity 99.99%) mixed powder is put into ball grinder ball milling 2h, ball milling at 92.5: 7.5 by mass percentage
Medium is zirconium carbide ball, ball powder ratio 5: 1, rotating speed 200r/min, and high-purity argon gas is filled with ball grinder simultaneously in mechanical milling process
Sealing；Mixed powder is put into graphite jig after ball milling, is together placed in vacuum hotpressing stove and is sintered, maximum sintering temperature
For 900 DEG C, heating rate is 15 DEG C/min；15min is incubated in maximum sintering temperature and applies 40MPa pressure.Sintering terminates
Release afterwards, cool to room temperature with the furnace, the micro-vickers hardness of prepared Cu-base composites is 168.5HV0.2, in load
Coefficient of friction and wear extent are divided into 0.725,6.85 × 10 under the conditions of 20N, wearing- in period 10min-2mm3。
The method disclosed in the present is easy, and the technological parameter of required control is less, overcomes other method technological parameter
The shortcomings that control is complicated, product quality is difficult to ensure that.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention by institute
The scope of patent protection that claims of submission determine.
Claims (6)
1. a kind of preparation method of Cu-base composites, it is characterised in that the described method comprises the following steps：
S100, by mixed powder be put into ball grinder add ball-milling medium carry out ball milling；
S200, the mixed powder after ball milling is put into graphite jig, is then together placed in vacuum hotpressing stove and is sintered；
S300, terminate rear release, cool to room temperature with the furnace, prepared material is Cu-base composites.
A kind of 2. preparation method of Cu-base composites according to claim 1, it is characterised in that：Preferably, the step
Mixed powder composition in rapid S100 be copper powder and carbonization zirconium powder, wherein copper powder and carbonization zirconium powder by mass percentage 99.5~
92.5: 0.5~7.5 proportionings.
A kind of 3. preparation method of Cu-base composites according to claim 2, it is characterised in that：The particle diameter of the copper powder
3~5 μm are distributed as, purity 99.97%；The particle diameter distribution of carbonization zirconium powder is 3~5 μm, purity 99.99%.
A kind of 4. preparation method of Cu-base composites according to claim 1, it is characterised in that：In the step S100
Ball-milling Time is 1~3 hour, and ball-milling medium is ZrC balls, and ball grinder rotating speed is 200r/min, in mechanical milling process in ball grinder
It is filled with high-purity argon gas and seals.
A kind of 5. preparation method of Cu-base composites according to claim 1, it is characterised in that：In the step S200
Maximum sintering temperature is 850~900 DEG C during vacuum heating-press sintering, and heating rate is 15 DEG C/min.
A kind of 6. preparation method of Cu-base composites according to claim 1, it is characterised in that：In the step S200
Composite sinters in maximum sintering temperature and keeps 10~15min of constant temperature, apply 30 to vacuum hotpressing stove while sintering~
40MPa pressure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711011729.9A CN107760901A (en) | 2017-10-25 | 2017-10-25 | A kind of preparation method of Cu-base composites |
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| CN201711011729.9A CN107760901A (en) | 2017-10-25 | 2017-10-25 | A kind of preparation method of Cu-base composites |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570570A (en) * | 2018-05-09 | 2018-09-25 | 九江学院 | A kind of nano-zirconium carbide ceramic strengthening copper base electrode material and preparation method thereof |
| CN111101009A (en) * | 2019-12-26 | 2020-05-05 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper material and preparation method thereof |
-
2017
- 2017-10-25 CN CN201711011729.9A patent/CN107760901A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570570A (en) * | 2018-05-09 | 2018-09-25 | 九江学院 | A kind of nano-zirconium carbide ceramic strengthening copper base electrode material and preparation method thereof |
| CN108570570B (en) * | 2018-05-09 | 2020-01-10 | 九江学院 | Nano zirconium carbide ceramic reinforced copper-based electrode material and preparation method thereof |
| CN111101009A (en) * | 2019-12-26 | 2020-05-05 | 浙江杭机新型合金材料有限公司 | High-strength high-conductivity copper material and preparation method thereof |
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