CN107855531A - A kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites - Google Patents
A kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites Download PDFInfo
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- CN107855531A CN107855531A CN201711340975.9A CN201711340975A CN107855531A CN 107855531 A CN107855531 A CN 107855531A CN 201711340975 A CN201711340975 A CN 201711340975A CN 107855531 A CN107855531 A CN 107855531A
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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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
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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
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
Abstract
A kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites.The present invention relates to a kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites.The present invention is R＆D cycle length be present to solve the existing block metal matrix composite technology for preparing, and it is high to prepare cost, it is impossible to meet the problem of high-end equipment is to demands such as carrier material multi items, small lot, personalization, rapid developments.The present invention passes through soft isolation block lattice and the process innovation of hard insulating course, it can realize that same stove synchronously disposably prepares a variety of or even hundreds of titanium matrix composite sample, prepared by the powder metallurgy high flux that can equally be well applied to the materials such as aluminum matrix composite and high temperature alloy.Realize material development and cost halves, the cycle halves and the target of quick response in development process, promote the spanning development of metal-base composites technology and the engineer applied in fields such as Aero-Space, mechano-electronic, communications and transportation.
Description
Technical field
The present invention relates to a kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites.
Background technology
Research and development of the rapid development of China's aeronautical and space technology to lightweight, high-strength, multi-functional, highly reliable new material propose
The new demand of multi items, high performance and quick response.Metal-base composites is that alloy base is excellent with having
Performance enhancing mutually by the mode such as additional or spontaneous carry out physical chemistry it is compound and obtain new material, have high specific strength,
The excellent properties such as specific stiffness, reliability and high temperature resistant.Aluminium base, titanium-based, superalloy matrix composite etc. are the Metal Substrate of representative
Composite, the harsh usage requirement in the fields such as Aero-Space is disclosure satisfy that, is with a wide range of applications；Titanium matrix composite
Meeting that high-strength, high-anti-friction civil area at home and abroad obtains increasing application.But metal-base composites
Can influence factor it is various (such as strengthen phase behaviour and distribution, species and content, institutional framework), the preparation that uses at present, sign,
Research meanses have the problems such as lead time is long, cost is high, poor for applicability.2011, U.S. government proposed " material gene work
Journey " is planned, and is supported using database, is calculated design optimization material component by the way that high flux is integrated, is prepared with high flux and quick
Sign is verified, so as to realize the double targets halved of R＆D costs, R＆D cycle, turns into the highland of new material R＆D competetion.
Breakthrough is achieved in terms of the key technologies such as the design of the low dimensional material such as film high flux, preparation and sign at present, but still
Shortage is applied to block metal matrix composite high flux preparation means, " spray printing " developed for alloy block sample
Several limited high Throughput Preparations such as synthetic method, polynary knot diffusion method are not used to metal-base composites component blank
Manufacture.
In summary, there is R＆D cycle length in existing metal-base composites block technology of preparing, prepare cost height,
Can not meet the needs of high-end equipment is to carrier material multi items, small lot, personalization, rapid development, its performance potential is also remote
It is not fully exerted.Powder metallurgy has become metal-based compound material due to having the advantages that tissue is controllable, high mechanical properties
Expect most important preparation method.In summary, there is an urgent need to develop the high flux powder metallurgy system of suitable metal-base composites
Standby technology.
The content of the invention
The present invention is R＆D cycle length be present to solve the existing block metal matrix composite technology for preparing, and prepares cost
It is high, it is impossible to meet the problem of high-end equipment is to demands such as carrier material multi items, small lot, personalization, rapid developments, and provide
A kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites.
A kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites can prepare metal-based compound material
Material, the metal-base composites are at least appointing in titanium matrix composite, aluminum matrix composite and high temperature alloy composite
Anticipate a kind of material or any multiple material, specifically carry out according to the following steps：
First, initial feed prepares：Using ceramic powders and metal dust as initial reaction raw material, according to the difference of design
The relevant parameter of metal-base composites, the proportioning of ceramic powders and metal dust in its initial reaction raw material is determined, in inertia
The ceramic powders and metal dust of the different ratio obtained under gaseous environment according to different metal based composites carry out ball respectively
The mixed powder of mill, obtains some groups of mixed material powders；
2nd, according to the soft isolation block lattice of size design of the quantity of the different metal based composites of design and moulds of industrial equipment
Quantity and hard insulating course the number of plies, it is and single according to the soft cut-off of the quantity and moulds of industrial equipment Size calculation of soft isolation block lattice
The size of first lattice；
3rd, the size for the soft isolation block lattice being calculated according to step 2 is cut to soft cut-off graphite paper, and is indulged
To being spliced into the soft cut-off group of individual layer that is made up of some soft isolation block lattice；The bed-plate dimension and frock of the soft cut-off group of individual layer
Mould bed-plate dimension is identical；As laterally separated gear between hard insulating course is arranged on into the soft cut-off group of two individual layers being vertically arranged
Plate；
4th, first the soft cut-off group of an individual layer that step 3 obtains is placed in mould, then obtained step 1 some
Group mixed material powder is respectively charged into each soft isolation block lattice in the soft cut-off group of individual layer Nei and ensures each soft isolation block
Pine dress mixed material powder is highly consistent in lattice, and the powder for completing the soft cut-off group of individual layer loads；The soft cut-off assembling powder of individual layer is complete
Cheng Hou, placed in its upper surface and the powder of the soft cut-off group of last layer individual layer is carried out after hard insulating course load, by that analogy, according to setting
Meter carries out some groups of mixed material powders and loaded, and obtains the powder body material loaded；
5th, according to the relevant parameter of the metal-base composites of design, using vacuum sintering funace to the powder that has loaded
Body material carries out vacuum heating-press sintering and block materials is prepared；Treat to take out block materials after the completion of hot pressed sintering, remove composition
The soft cut-off graphite paper of soft isolation block lattice obtains corresponding serial block materials, complete same stove synchronously disposably prepare it is a variety of
Metal-base composites sample.
Beneficial effects of the present invention：
It is a variety of to realize that same stove is synchronously disposably prepared by soft isolation block lattice and the process innovation of hard insulating course by the present invention
Even hundreds of titanium matrix composite sample, can equally be well applied to the powder smelting of the materials such as aluminum matrix composite and high temperature alloy
It is prepared by golden high flux.Realize material development and cost halves, the cycle halves and the target of quick response in development process, push away
The spanning development of metal-base composites technology and the engineering in fields such as Aero-Space, mechano-electronic, communications and transportation are moved
Using.
Brief description of the drawings
Fig. 1 is the photo of the soft cut-off group of individual layer in the step 3 of embodiment one；
Fig. 2 is the photo after the completion of the powder of the soft cut-off group of individual layer in the step 4 of embodiment one loads；
Fig. 3 is the picture after the completion of the vacuum heating-press sintering of embodiment one；
Fig. 4 is the structural representation when the powder body material loaded is multilayer in embodiment one；Wherein 1 is single
The soft cut-off group of layer, 2 be hard insulating course；
Fig. 5 is the planar structure schematic diagram of the soft cut-off group of individual layer described in embodiment one.
Embodiment
Embodiment one：A kind of hot pressed sintering powder metallurgy high flux of present embodiment prepares metal-based compound material
The method of material can prepare metal-base composites, the metal-base composites be titanium matrix composite, aluminum matrix composite and
At least any one material or any multiple material in high temperature alloy composite, are specifically carried out according to the following steps：
First, initial feed prepares：Using ceramic powders and metal dust as initial reaction raw material, according to the difference of design
The relevant parameter of metal-base composites, the proportioning of ceramic powders and metal dust in its initial reaction raw material is determined, in inertia
The ceramic powders and metal dust of the different ratio obtained under gaseous environment according to different metal based composites carry out ball respectively
The mixed powder of mill, obtains some groups of mixed material powders；
2nd, according to the soft isolation block lattice of size design of the quantity of the different metal based composites of design and moulds of industrial equipment
Quantity and hard insulating course the number of plies, it is and single according to the soft cut-off of the quantity and moulds of industrial equipment Size calculation of soft isolation block lattice
The size of first lattice；
3rd, the size for the soft isolation block lattice being calculated according to step 2 is cut to soft cut-off graphite paper, and is indulged
To being spliced into the soft cut-off group of individual layer that is made up of some soft isolation block lattice；The bed-plate dimension and frock of the soft cut-off group of individual layer
Mould bed-plate dimension is identical；As laterally separated gear between hard insulating course is arranged on into the soft cut-off group of two individual layers being vertically arranged
Plate；
4th, first the soft cut-off group of an individual layer that step 3 obtains is placed in mould, then obtained step 1 some
Group mixed material powder is respectively charged into each soft isolation block lattice in the soft cut-off group of individual layer Nei and ensures each soft isolation block
Pine dress mixed material powder is highly consistent in lattice, and the powder for completing the soft cut-off group of individual layer loads；The soft cut-off assembling powder of individual layer is complete
Cheng Hou, placed in its upper surface and the powder of the soft cut-off group of last layer individual layer is carried out after hard insulating course load, by that analogy, according to setting
Meter carries out some groups of mixed material powders and loaded, and obtains the powder body material loaded；
5th, according to the relevant parameter of the metal-base composites of design, using vacuum sintering funace to the powder that has loaded
Body material carries out vacuum heating-press sintering and block materials is prepared；Treat to take out block materials after the completion of hot pressed sintering, remove composition
The soft cut-off graphite paper of soft isolation block lattice obtains corresponding serial block materials, complete same stove synchronously disposably prepare it is a variety of
Metal-base composites sample.
The relevant parameter of metal-base composites described in present embodiment includes reinforcement species, reinforcement content, metal
The size of based composites, the pattern of metal-base composites, the distribution of metal-base composites, the boundary of metal-base composites
Face.
Present embodiment by fill powder mode and moulds of industrial equipment design can realize different systems, different enhancing phase content,
Size, pattern, distribution, interface composites Large Copacity (>100) the same stove of sample group, synchronous preparation.Mainly pass through following three
Individual step：It is the design and assembling of soft or hard insulating course first；It is followed by the filling of dusty material in cell；It is finally powder smelting
Golden hot pressed sintering prepares block materials process.
Present embodiment can according to different cell quantitative designs can same stove, synchronous disposably prepare different samples
Quantity.Such as 6 samples of individual layer, 4 layers, it can obtain 24 samples；16 samples of individual layer, 3 layers, it can obtain 48 kinds of samples；Individual layer
32 samples, 4 layers, 128 samples are can obtain, so as to which cost and R＆D cycle be greatly reduced.
Embodiment two：Present embodiment is unlike embodiment one：The titanium matrix composite is
TiBw/Ti alloy-base composite materials.Other steps and parameter are identical with embodiment one.
The TiBw/Ti alloy-base composite materials are prepared according to Patent No. ZL200810136852.8 patent
's.
Embodiment three：Present embodiment is unlike embodiment one or two：Ball described in step 1
The ratio of grinding media to material of the mixed powder of mill is 5:1, rotating speed is 180~230r/min, time 5h.Other steps and parameter and embodiment
One or two is identical.
Embodiment four：Unlike one of present embodiment and embodiment one to three：In step 1
The ceramic powders of different ratio and metal dust are subjected to ball milling respectively under inert gas environment and mix powder, obtain six groups of mixed materials
Powder.Other steps and parameter are identical with one of embodiment one to three.
Embodiment five：Unlike one of present embodiment and embodiment one to four：Institute in step 2
It is hard Graphite pad to state hard insulating course.Other steps and parameter are identical with one of embodiment one to four.
Embodiment six：Unlike one of present embodiment and embodiment one to five：Institute in step 5
The sintering temperature for stating vacuum heating-press sintering is 1200 DEG C~1300 DEG C, and sintering time be 45min~60min, pressure for 20MPa~
25MPa, heating rate are 10 DEG C/min.Other steps and parameter are identical with one of embodiment one to five.
Beneficial effects of the present invention are verified by following examples：
Embodiment one：A kind of hot pressed sintering powder metallurgy high flux prepares the method tool of TiBw/Ti alloy-base composite materials
Body is carried out according to the following steps：
First, initial feed prepares：Using 1~6# titanium matrix composites as target material, determine in its initial reaction raw material
The proportioning of ceramic powders and metal dust, the ceramic powders of different ratio and metal dust are entered respectively in an inert atmosphere
Row ball milling mixes powder, obtains some groups of mixed material powders；1~6# titanium matrix composites are 1#：Ceramic enhancement phase TiB volumes
Fraction 3.5vol%, titanium alloy substrate TC4,150 μm of size of matrix grains；2#：Ceramic enhancement phase TiB volume fractions
3.5vol%, titanium alloy substrate TC4,80 μm of size of matrix grains；3#：Ceramic enhancement phase TiB volume fraction 5.1vol%, titanium
Alloy substrate is TC4,150 μm of size of matrix grains；4#：Ceramic enhancement phase TiB volume fraction 5.1vol%, titanium alloy substrate are
TC4,80 μm of size of matrix grains；5#：Ceramic enhancement phase TiB volume fraction 3.5vol%, titanium alloy substrate TA15, matrix
150 μm of particle size；6#：Ceramic enhancement phase TiC volume fraction 3.5vol%, titanium alloy substrate TC4, the μ of size of matrix grains 150
m；The ratio of grinding media to material that the ball milling mixes powder is 5:1, rotating speed is 180~230r/min, time 5h；
2nd, according to the soft isolation block lattice of size design of the quantity of the different metal based composites of design and moulds of industrial equipment
Quantity and hard insulating course the number of plies, it is and single according to the soft cut-off of the quantity and moulds of industrial equipment Size calculation of soft isolation block lattice
The size of first lattice；The quantity of the metal-base composites is six groups；
3rd, the size for the soft isolation block lattice being calculated according to step 2 is cut to soft cut-off graphite paper, and is indulged
To being spliced into the soft cut-off group of individual layer that is made up of some soft isolation block lattice；The bed-plate dimension and frock of the soft cut-off group of individual layer
Mould bed-plate dimension is identical；
4th, first the soft cut-off group of an individual layer that step 3 obtains is placed in mould, then obtain step 1 six groups
Six soft isolation block lattice that mixed material powder is respectively charged into the soft cut-off group of individual layer are interior and ensure each soft isolation block lattice
Highly consistent, the powder filling of the completion soft cut-off group of individual layer of middle pine dress mixed material powder；Obtain the powder body material loaded；
5th, according to the relevant parameter of the metal-base composites of design, using vacuum sintering funace to the powder that has loaded
Body material carries out vacuum heating-press sintering and block materials is prepared；Treat to take out block materials after the completion of hot pressed sintering, remove composition
The soft cut-off graphite paper of soft isolation block lattice obtains corresponding serial block materials, complete same stove synchronously disposably prepare it is a variety of
Metal-base composites sample；The sintering temperature of the vacuum heating-press sintering is 1200 DEG C~1300 DEG C, sintering time 45min
~60min, pressure are 20MPa~25MPa, and heating rate is 10 DEG C/min.
The present embodiment uses the preferable flexible graphite paper of high temperatures as soft interlayer, as shown in figure 1, carrying out
The same stove of six pieces of samples of individual layer, simultaneously prepared technique are probed into.Ball milling blending processes of powders is carried out first, obtains the pottery of six kinds of different ratios
Porcelain and metal mixed powder；Warp knit labelled notation fills powder in particular order later, in the compartmentation of soft graphite paper interlayer
Under, six kinds of powder are not interfere with each other independently of each other, and different individual layer can be designed according to the situation of reality and separates quantity and not
The same number of plies, as shown in Fig. 2 wherein 1~6 corresponds to 1~6# titanium matrix composites respectively；It should be noted that keep powder former
The uniformity of material assembling height, so that the stable uniformity for carrying out, ensureing material processing technique of follow-up hot pressed sintering.Hot pressing
After sintering finishes, as shown in figure 3, wherein 1~6 corresponds to 1~6# titanium matrix composites respectively, polylith titanium-based composite wood is realized
Same stove, simultaneously prepared target are expected, so as to shorten the R＆D cycle of titanium matrix composite, raising efficiency.
Claims (6)
1. a kind of method that hot pressed sintering powder metallurgy high flux prepares metal-base composites, it is characterised in that hot pressed sintering powder
The method that the metallurgical high flux in end prepares metal-base composites can prepare metal-base composites, and the metal-base composites is
At least any one material or any a variety of materials in titanium matrix composite, aluminum matrix composite and high temperature alloy composite
Material, is specifically carried out according to the following steps：
First, initial feed prepares：Using ceramic powders and metal dust as initial reaction raw material, according to the different metal of design
The relevant parameter of based composites, the proportioning of ceramic powders and metal dust in its initial reaction raw material is determined, in inert gas
The ceramic powders and metal dust of the different ratio obtained under environment according to different metal based composites carry out ball milling and mixed respectively
Powder, obtain some groups of mixed material powders；
2nd, according to the number of the soft isolation block lattice of size design of the quantity of the different metal based composites of design and moulds of industrial equipment
The number of plies of amount and hard insulating course, and according to the soft isolation block lattice of quantity and moulds of industrial equipment Size calculation of soft isolation block lattice
Size；
3rd, the size for the soft isolation block lattice being calculated according to step 2 is cut to soft cut-off graphite paper, and is longitudinally spelled
It is connected into the soft cut-off group of individual layer being made up of some soft isolation block lattice；The bed-plate dimension and moulds of industrial equipment of the soft cut-off group of individual layer
Bed-plate dimension is identical；As laterally separated baffle plate between hard insulating course is arranged on into the soft cut-off group of two individual layers being vertically arranged；
4th, first the soft cut-off group of an individual layer that step 3 obtains is placed in mould, then obtain step 1 some groups mix
Material powder is closed to be respectively charged into each soft isolation block lattice in the soft cut-off group of individual layer Nei and ensure in each soft isolation block lattice
Highly consistent, the powder filling of the completion soft cut-off group of individual layer of pine dress mixed material powder；After the completion of the soft cut-off assembling powder of individual layer,
Placed in its upper surface and the powder of the soft cut-off group of last layer individual layer is carried out after hard insulating course load, by that analogy, according to design into
Some groups of mixed material powders of row load, and obtain the powder body material loaded；
5th, according to the relevant parameter of the metal-base composites of design, using vacuum sintering funace to the powder material that has loaded
Material carries out vacuum heating-press sintering and block materials is prepared；Treat to take out block materials after the completion of hot pressed sintering, remove composition it is soft every
The soft cut-off graphite paper of disconnected cell obtains corresponding serial block materials, completes same stove and synchronously disposably prepares various metals
Based composites sample.
2. the method that a kind of hot pressed sintering powder metallurgy high flux according to claim 1 prepares metal-base composites,
It is characterized in that the titanium matrix composite is TiBw/Ti alloy-base composite materials.
3. the method that a kind of hot pressed sintering powder metallurgy high flux according to claim 1 prepares metal-base composites,
It is characterized in that the ratio of grinding media to material that ball milling described in step 1 mixes powder is 5:1, rotating speed is 180~230r/min, time 5h.
4. the method that a kind of hot pressed sintering powder metallurgy high flux according to claim 1 prepares metal-base composites,
It is characterized in that the ceramic powders of different ratio and metal dust are subjected to ball milling respectively in an inert atmosphere in step 1
Mixed powder, obtains six groups of mixed material powders.
5. the method that a kind of hot pressed sintering powder metallurgy high flux according to claim 1 prepares metal-base composites,
It is characterized in that hard insulating course described in step 2 is hard Graphite pad.
6. the method that a kind of hot pressed sintering powder metallurgy high flux according to claim 1 prepares metal-base composites,
It is characterized in that the sintering temperature of vacuum heating-press sintering described in step 5 is 1200 DEG C~1300 DEG C, sintering time 45min
~60min, pressure are 20MPa~25MPa, and heating rate is 10 DEG C/min.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111825431A (en) * | 2020-05-20 | 2020-10-27 | 中国工程物理研究院材料研究所 | High-flux integrated preparation method of composite material |
| CN113049343A (en) * | 2021-05-31 | 2021-06-29 | 北京煜鼎增材制造研究院有限公司 | Ultra-light aluminum alloy high-throughput preparation and characterization method |
| CN114918413A (en) * | 2022-05-17 | 2022-08-19 | 哈尔滨工业大学 | Device, system and method for preparing block in high flux |
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| CN1500578A (en) * | 2002-11-15 | 2004-06-02 | 自贡硬质合金有限责任公司 | Hot-pressing sintering method and mould for ceramic, carbide products |
| CN101439406A (en) * | 2008-12-19 | 2009-05-27 | 贵州新安航空机械有限责任公司 | Method for molding and sintering powder metallurgy |
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| CN205870831U (en) * | 2016-07-26 | 2017-01-11 | 北京冶科纳米科技有限公司 | A layering sintered molded utensil for hot pressing stove |
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| GB1405171A (en) * | 1972-01-19 | 1975-09-03 | Lucas Industries Ltd | Method of manufacturing hot pressed silicon nitride components |
| CN1500578A (en) * | 2002-11-15 | 2004-06-02 | 自贡硬质合金有限责任公司 | Hot-pressing sintering method and mould for ceramic, carbide products |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111825431A (en) * | 2020-05-20 | 2020-10-27 | 中国工程物理研究院材料研究所 | High-flux integrated preparation method of composite material |
| CN111825431B (en) * | 2020-05-20 | 2023-02-07 | 中国工程物理研究院材料研究所 | High-flux integrated preparation method of composite material |
| CN113049343A (en) * | 2021-05-31 | 2021-06-29 | 北京煜鼎增材制造研究院有限公司 | Ultra-light aluminum alloy high-throughput preparation and characterization method |
| CN114918413A (en) * | 2022-05-17 | 2022-08-19 | 哈尔滨工业大学 | Device, system and method for preparing block in high flux |
| CN114918413B (en) * | 2022-05-17 | 2024-03-29 | 哈尔滨工业大学 | Device, system and method for preparing block body in high flux |
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Application publication date: 20180330 |