CN110227818A - A kind of layering power spreading device for powder metallurgy function-graded material - Google Patents
A kind of layering power spreading device for powder metallurgy function-graded material Download PDFInfo
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- CN110227818A CN110227818A CN201910650292.6A CN201910650292A CN110227818A CN 110227818 A CN110227818 A CN 110227818A CN 201910650292 A CN201910650292 A CN 201910650292A CN 110227818 A CN110227818 A CN 110227818A
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- powder
- frame
- bar
- scrape
- scraping
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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
- 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
- B22F3/004—Filling molds with powder
-
- 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
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
Abstract
The present invention provides a kind of layering power spreading devices for powder metallurgy function-graded material, it devises and scrapes powder bar, scrape powder frame, support platform, support frame, scrape powder bar circular groove, scrape structure and the position of the components such as powder frame circular through hole, it adjusts alignment pin position and makes to scrape powder bar cross frame and strike off from scraping powder frame lower surface cross groove and stretch out the powder surface that can be loaded into, continuing adjusting alignment pin position makes to scrape powder bar and scrapes the upper of powder frame, lower surface concordantly can directly be cold-pressed powder under cold press, hereafter repeatedly the dress powder of the dress achievable multi-gradient functional material of powder and powder are cold-pressed work;The position of inventive die push-down head is fixed, and peripheral powder will not be loosened, be leaked out, and lower layer's powder will not flow again;It is the configuration of the present invention is simple, easy for installation, large scale and the relatively thin function-graded material of thickness can be prepared, has good application prospect in terms of laboratory research, powder metallurgy Single unit job lot production.
Description
Technical field
The invention belongs to power metallurgy equipment fields, and in particular to a kind of layering powdering of powder metallurgy function-graded material
Device especially prepares material structure and performance gradient change suitable for preparing the powdering process of material with powder metallurgical technique
Functional material powdering process.
Background technique
Competition between modern society's high-tech depends greatly on the development of material, it may be said that material is society
The basis of development and scientific and technological progress, function-graded material from Japan material scholar Xinye just it, horizontal well is quick male and crosses side dragon
It is third to propose to be exactly hot spot material that scholars study in middle and later periods the 1980s.Function-graded material specifically refers to one kind
Composition, structure and performance is material thickness or length direction be continuous or the inhomogeneous composite materials of quasi-continuous variation.Gradient function
Material has many good qualities, and being used as boundary layer can connect two kinds of incompatible materials to improve adhesion strength;With making coatings and
Boundary layer can reduce residual stress and thermal stress;Bonding strength can be enhanced and reduce instead of traditional uniform coating of material and split
Line driving force.Function-graded material application from initial aerospace field be expanded to biology, machinery, photoelectricity, core,
The numerous areas such as the energy, electromagnetism, building.
Currently, the preparation method of function-graded material mainly has powder metallurgy, centrifugal casting, laser melting coating, plasma spray
Painting, slurry casting etc., the method for most common of them is exactly powder metallurgical technique.Functionally gradient material (FGM) is prepared using powder metallurgical technique
There are many advantage, for example, matrix alloy tissue it is fine, reinforcement volume fraction, Dispersion of Reinforcement can be designed uniformly etc..But this system
There is also some problems for Preparation Method, such as when the size for preparing material is larger, thickness is relatively thin, will increase the complexity of technique,
The uniformity of powder and planarization are difficult to control when powdering especially into mold.
In order to meet the planarization and uniformity of powdering, many scholars explore powdering mode, existing powdering side
Formula mainly includes addition dispersing agent, lifting mold push-down head and manual powdering.Adding dispersing agent powdering mode is to pour into powder
In the dispersing agents such as water, dehydrated alcohol, polyvinyl alcohol, this method more can equably pave powder, but need after powdering every time
Make surfacing with glass bar agitation powder, but may be flowed again as glass bar stirs precipitated particle, and
Due to stirring the powder being uniformly mixed in every layer of reprecipitation due to gravity it is possible that lamination;Go up and down mold push-down head paving
Powder mode is to be lifted mold push-down head using lifting device, and the thickness for declining one layer of powder every time fills powder, this method several times
Suppression performance is good, but platform declines the loosening for being likely to result in peripheral powder every time, due to the gap of mold push-down head and die sleeve
Cooperate peripheral powder that may leak out;Manual powdering mode is to pour into each layer powder one by one after mold manually to scrape powder surface
Flat, this method is simple and convenient, but powder profile pattern is relatively difficult to guarantee.
Summary of the invention
Aiming at the problem that powdering uniformity and planarization are difficult to control in powder metallurgy function-graded material preparation process, this
Invention propose a kind of layering power spreading device for powder metallurgy function-graded material, can make powder distribution uniformly, surfacing,
More can simplify large scale, thin layer function-graded material powdering technique.
Above-mentioned purpose of the invention is achieved through the following technical solutions:
A kind of layering power spreading device for powder metallurgy function-graded material, which is characterized in that including an open circles
Cylindrical die sleeve is fixedly installed the support platform of a cirque structure, the internal diameter of support platform on the upper surface of die sleeve
Identical as the internal diameter of die sleeve, the outer diameter of support platform is greater than the outer diameter of die sleeve, and being provided with above support platform can be relative to support
The support frame that platform moves up and down, support frame are cirque structure, and the internal diameter of support frame and the internal diameter of support platform are identical, support
The outer diameter of frame and the outer diameter of support platform are identical, further include one and scrape powder frame, and scraping powder frame is an inside with ladder axis hole
Two-part stepped shaft structure, the top for scraping powder frame is big axle journal section, and the lower part for scraping powder frame is pilot pin section, scrapes the big axle journal of powder frame
The outer diameter of section is greater than the internal diameter of support frame, scrapes the interior annular of the pilot pin section of powder frame and the inner circle anchor ring of support frame, support platform
The hole wall clearance fit of the central through hole of face and die sleeve scrapes the outer shaft shoulder and branch between the big axle journal section of powder frame and pilot pin section
The upper surface of support, which is contacted, scrapes the positioning and height adjustment of powder frame in the vertical direction to realize, scrapes the big axle journal pars infrasegmentalis of powder frame
There are three be spaced it is equally distributed scrape powder frame lower part circular through hole, scrape powder frame big axle journal section top there are three be spaced it is equally distributed
Powder frame upper circular through-hole is scraped, powder frame upper circular through-hole and the adjacent interval scraped between the circular through hole of powder frame lower part are each scraped
It is equal, the top for scraping the ladder axis hole inside powder frame is large aperture section, and the lower part for scraping the ladder axis hole inside powder frame is aperture
Diameter section, the height for scraping the large aperture section of the ladder axis hole of powder frame is identical as the height of big axle journal section of powder frame is scraped, and scrapes the rank of powder frame
Terraced axis hole small-bore section height it is identical as the height of pilot pin section of powder frame is scraped, scrape powder frame lower surface be provided with it is concave up
Sunken cross groove is scraped and is provided with one in powder frame and scrapes powder bar, and scraping powder bar includes a cylindrical body, scrapes the cylindrical body of powder bar
It is spaced six be evenly distributed on external cylindrical surface and scrapes powder bar circular groove, scrape the external cylindrical surface of the cylindrical body of powder bar and scrapes powder frame
The hole wall clearance fit of the large aperture section of internal ladder axis hole, scrape at the lower end surface center of the cylindrical body of powder bar by one to
The cylindrical bar of lower setting is connected with a cross frame, and the cross frame for scraping powder bar can be recessed with the cross of scraping powder frame lower surface
Slot clearance fit, scrapes the hole wall clearance fit of the cross frame of powder bar and the central through hole of die sleeve, and three positioning pins are both passed through and scraped
The upper circular through-hole of the big axle journal section of powder frame scrapes the cooperation of powder bar circular groove on the external cylindrical surface for the cylindrical body for scraping powder bar,
Or three positioning pins both pass through the external cylindrical surface of the lower part circular through hole and the cylindrical body for scraping powder bar for the big axle journal section for scraping powder frame
On scrape the cooperation of powder bar circular groove, to position to scraping powder bar, mold push-down head is protruded into and is consolidated by the lower openings of die sleeve
It is scheduled in die sleeve, the space between the upper surface of mold push-down head and the cross frame for scraping powder bar is mold cavity.
Further technical solution includes:
About the circular support platform connection of the axisymmetrical of support platform there are two being arranged in the support platform
Through-hole, there are two the branch of down-set cylinder corresponding with the support platform of support platform connection through-hole for support frame lower surface
Support connection pillar, support frame connection pillar lower part have external screw thread, two support frame connection pillars and corresponding support platform
Via clearance cooperation is connected, the external screw thread of support frame connection pillar connects with the nut thread being located above support platform upper surface
It connects.
It is carved with the scale for indicating height in the small axle diameter section outer surface for scraping powder frame.
It scrapes and is threadedly coupled at the upper end and the lower end surface center for the cylindrical body for scraping powder bar of the cylindrical bar of powder bar.
The height for scraping the cylindrical body of powder bar is less than the height for scraping the large aperture section of the ladder axis hole of powder bar.
Compared with prior art the beneficial effects of the present invention are:
1. positioning pin is adjusted in a kind of layering power spreading device for powder metallurgy function-graded material of the present invention
Position makes to scrape powder bar cross frame and is loaded into the powder of mold cavity and strikes off from scraping powder frame lower surface cross groove and stretch out, and can make powder
End is evenly distributed, surfacing, has good application prospect in terms of laboratory research, single and mini-batch production powder metallurgy production;
2. a kind of layering power spreading device for powder metallurgy function-graded material of the present invention, is striking off powder
Afterwards, the position for positioning pin being adjusted keeps the upper and lower surfaces scraped powder bar with scrape powder frame concordant, adjusts above support platform upper surface
Behind the position of nut and support frame connection pillar, whole device can be cold-pressed powder under press machine;
3. a kind of layering power spreading device for powder metallurgy function-graded material of the present invention, can be used for preparing
Monolayer material can also conveniently be removed after primary cold pressing, and then repeatedly fill powder, realize the system of layered gradient functional material
It is standby;
4. a kind of layering power spreading device for powder metallurgy function-graded material of the present invention, during the work time
Mold push-down head position remains unchanged, and peripheral powder will not be loosened and be leaked out, and scrapes powder bar bottom cross frame and only strikes off powder table
Face, the uniformly mixed powder of lower layer will not flow again will not be since there is lamination in gravity;
5. a kind of layering power spreading device for powder metallurgy function-graded material of the present invention, structure is simple, peace
Dress is convenient, can prepare large scale and the relatively thin function-graded material of thickness.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is that a kind of layering power spreading device for powder metallurgy function-graded material of the present invention is in cold pressing shape
One axonometric projection view of state;
Fig. 2 is that a kind of layering power spreading device for powder metallurgy function-graded material of the present invention is in cold pressing shape
The external structure schematic diagram of state;
A kind of position Fig. 3 layering power spreading device for powder metallurgy function-graded material of the present invention is in cold pressing shape
The cross-sectional view of state;
Fig. 4 is to scrape powder bar in a kind of layering power spreading device for powder metallurgy function-graded material of the present invention
Structural schematic diagram;
Fig. 5 is to scrape powder frame in a kind of layering power spreading device for powder metallurgy function-graded material of the present invention
Structural schematic diagram;
Fig. 6 is that a kind of layering power spreading device for powder metallurgy function-graded material of the present invention is in and scrapes powdery
One axonometric projection view of state;
Fig. 7 is that a kind of layering power spreading device for powder metallurgy function-graded material of the present invention is in and scrapes powdery
The cross-sectional view of state.
In figure: 1. scrape powder bar, and 2. scrape powder frame, and 3. scrape powder frame upper circular through-hole, and 4. scrape powder frame lower part circular through hole, 5. spiral shells
Mother, 6. support platforms, 7. die sleeves, 8. mold push-down heads, 9. mold cavities, 10. support frame connection pillars, 11. support frames, 12. is fixed
Position pin, 13. scrape powder bar circular groove.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
The present invention provides a kind of layering power spreading devices for powder metallurgy function-graded material, extremely below with reference to Fig. 1
Fig. 7 further illustrates particular content and the course of work of the invention.
As shown in Figures 1 to 7, a kind of layering powdering for powder metallurgy function-graded material of the present invention fills
It sets, the die sleeve 7 including a hollow cylinder tubular, the support of a cirque structure is fixedly installed on the upper surface of die sleeve 7
The internal diameter of platform 6, support platform 6 is identical as the internal diameter of die sleeve 7, and the outer diameter of support platform 6 is greater than the outer diameter of die sleeve 7, and support is flat
Being provided with above platform 6 can be cirque structure, support frame relative to the support frame 11 that support platform 6 moves up and down, support frame 11
11 internal diameter is identical as the internal diameter of support platform 6, and the outer diameter of support frame 11 is identical as the outer diameter of support platform 6, in support platform 6
It is arranged there are two the circular support platform of the axisymmetrical about support platform 6 connection through-hole, 11 lower surface of support frame has two
The support frame connection pillar 10 of a down-set cylinder corresponding with the support platform of support platform 6 connection through-hole, support
10 lower part of frame connection pillar has external screw thread, and two support frame connection pillars 10 are matched with corresponding support platform connection via clearance
It closes, it further includes one that the external screw thread of support frame connection pillar 10 is threadedly coupled with the nut 5 being located above 6 upper surface of support platform
A to scrape powder frame 2, scraping powder frame 2 is the two-part stepped shaft structure that an inside has ladder axis hole, and the top for scraping powder frame 2 is big axis
Cervical part of esophagus, the lower part for scraping powder frame 2 is pilot pin section, and the scale for indicating height is carved in the small axle diameter section outer surface for scraping powder frame 2, scrapes powder frame
The outer diameter of 2 big axle journal section is greater than the internal diameter of support frame 11, scrapes the pilot pin section of powder frame 2 and the inner circle anchor ring of support frame 11, branch
The hole wall clearance fit for supportting the inner circle anchor ring of platform 6 and the central through hole of die sleeve 7, scrapes the big axle journal section and pilot pin of powder frame 2
The outer shaft shoulder between section is contacted with the upper surface of support frame 11 to realize that the positioning scraped powder frame 2 in the vertical direction and height are adjusted
Section, scrape the big axle journal pars infrasegmentalis of powder frame 2 there are three be spaced it is equally distributed scrape powder frame lower part circular through hole 4, scrape the big axle journal of powder frame 2
Section top there are three be spaced it is equally distributed scrape powder frame upper circular through-hole 3, each scrape powder frame upper circular through-hole 3 and adjacent
The interval scraped between powder frame lower part circular through hole 4 is equal, and the top for scraping the ladder axis hole inside powder frame 2 is large aperture section, is scraped
The lower part of ladder axis hole inside powder frame 2 is small-bore section, scrapes the height of the large aperture section of the ladder axis hole of powder frame 2 and scrapes powder frame
The height of 2 big axle journal section is identical, scrapes the height of the small-bore section of the ladder axis hole of powder frame 2 and the pilot pin section for scraping powder frame 2
Highly identical, the lower surface for scraping powder frame 2 is provided with the cross groove being recessed upwards, scrapes and is provided with one in powder frame 2 and scrapes powder bar
1, scraping powder bar 1 includes a cylindrical body, and the height for scraping the cylindrical body of powder bar 1 is less than the large aperture section for scraping the ladder axis hole of powder bar 2
Height, scrape six for being spaced and being evenly distributed on the external cylindrical surface of the cylindrical body of powder bar 1 and scrape powder bar circular groove 13, scrape powder bar
The hole wall clearance fit of the external cylindrical surface of 1 cylindrical body and the large aperture section for scraping the ladder axis hole inside powder frame 2, scrapes powder bar 1
A cross frame is connected with by a down-set cylindrical bar at the lower end surface center of cylindrical body, scrapes the circle of powder bar 1
Be threadedly coupled at the upper end of cylindrical rod and the lower end surface center for the cylindrical body for scraping powder bar 1, scrape powder bar 1 cross frame can with scrape powder
Match in the hole wall gap of the cross groove clearance fit of 2 lower surface of frame, the cross frame and the central through hole of die sleeve 7 of scraping powder bar 1
It closes, three positioning pins 12 both pass through the outer circle of the upper circular through-hole 3 and the cylindrical body for scraping powder bar 1 for the big axle journal section for scraping powder frame 2
On cylinder scrape powder bar circular groove 13 cooperation or three positioning pins 12 both pass through the big axle journal section for scraping powder frame 2 lower part circle
Shape through-hole 4 scrapes the cooperation of powder bar circular groove 13 on the external cylindrical surface of the cylindrical body of scraping powder bar 1, to determine to scraping powder bar 1
Position, mold push-down head 8 protrudes by the lower openings of die sleeve 7 and is fixed in die sleeve 7, the upper surface of mold push-down head 8 and scrapes powder
Space between the cross frame of bar 1 is mold cavity 9.
A kind of course of work of layering power spreading device for powder metallurgy function-graded material is exemplified below.
The first step, mold push-down head 8 are protruded by the lower openings of die sleeve 7 and are fixed on the bottom of die sleeve 7, place mould vertically
Set 7, mold push-down head 8 and the support platform 6 being fixed on die sleeve 7;
Load weighted powder is packed by second step by the upper opening of die sleeve 7, and powder is laid on mold push-down head 8;
Third step, the scale that height is indicated according to the small axle diameter section outer surface for scraping powder frame 2, adjusting nut 4 and support frame connect
10 relative position of pillar is connect, nut 4, support frame connection pillar 10 and support frame 11 are connected by the support platform of support platform 6
It connects hole to be erected in support platform 6, the height of fixing support rack 11;
4th step, three positioning pins 12 both pass through the lower part circular through hole 4 for the large-diameter section for scraping powder frame 2 and scrape the circle of powder bar
The cooperation of powder bar circular groove 13 is scraped on the external cylindrical surface of cylinder, scrapes the cross frame of powder bar 1 at this time from scraping 2 lower surface of powder frame
(such as Fig. 6, Fig. 7) is stretched out in cross groove, powder bar 1 will be scraped by the way that positioning pin 12 is fixed and scrapes powder frame 2 using scraping powder frame 2
The outer shaft shoulder is erected on support frame 11, fixed to scrape powder frame 2 and scrape 1 position of powder bar (such as Fig. 7), and 7 height of mold cavity is in advance at this time
The powdering height being calculated;
Powder frame 2 is scraped in 5th step, the holding rotation of positioning pin 12, strikes off powder surface using the cross frame for scraping powder bar 1;
6th step, three positioning pins 12 both pass through the upper circular through-hole 3 for the large-diameter section for scraping powder frame 2 and scrape powder bar 1
The cooperation of powder bar circular groove 13 is scraped on the external cylindrical surface of cylindrical body, the cross structure lower surface of powder bar 1 is scraped at this time and scrapes powder frame 2
Lower surface is concordant (as shown in Figure 1, Figure 2, Fig. 3);
10 relative position of 7th step, adjusting nut 4 and support frame connection pillar declines support frame 11, and support frame 11 is not
It plays the role of positioning to powder frame 2 is scraped, whole device is placed under cold press, directly powder bar 1 and scrape powder frame 2 to scraping using cold press
Upper surface and the lower surface of die sleeve 7 and mold push-down head 8 apply pressure, complete the cold pressing of powder;
8th step will scrape powder bar 1, and scrape powder frame 2, support frame 11, nut 5 and take away from support platform, repeat second step extremely
The dress powder and powder of the achievable multi-gradient functional material of 7th step are cold-pressed work.
Claims (5)
1. a kind of layering power spreading device for powder metallurgy function-graded material, which is characterized in that including a hollow cylinder
The die sleeve (7) of tubular is fixedly installed the support platform (6) of a cirque structure, support platform on the upper surface of die sleeve (7)
(6) internal diameter is identical as the internal diameter of die sleeve (7), and the outer diameter of support platform (6) is greater than the outer diameter of die sleeve (7), in support platform (6)
Side, which is provided with, to be cirque structure, support frame relative to the support frame (11) that support platform (6) move up and down, support frame (11)
(11) internal diameter is identical as the internal diameter of support platform (6), and the outer diameter of support frame (11) is identical as the outer diameter of support platform (6), also
Powder frame (2) are scraped including one, scraping powder frame (2) is the two-part stepped shaft structure that an inside has ladder axis hole, scrapes powder frame (2)
Top be big axle journal section, scrape powder frame (2) lower part be pilot pin section, scrape the big axle journal section of powder frame (2) outer diameter be greater than support
The internal diameter of frame (11) scrapes the inner circle anchor ring of the pilot pin section of powder frame (2) and the inner circle anchor ring of support frame (11), support platform (6)
And the hole wall clearance fit of the central through hole of die sleeve (7), scrape the outer shaft shoulder between the big axle journal section of powder frame (2) and pilot pin section
It is contacted with the upper surface of support frame (11) to realize and scrape the positioning and height adjustment of powder frame (2) in the vertical direction, scrapes powder frame (2)
Big axle journal pars infrasegmentalis there are three be spaced it is equally distributed scrape powder frame lower part circular through hole (4), scrape the big axle journal section top of powder frame (2)
There are three be spaced it is equally distributed scrape powder frame upper circular through-hole (3), each scrape powder frame upper circular through-hole (3) and scraped with adjacent
Interval between powder frame lower part circular through hole (4) is equal, and the top for scraping the internal ladder axis hole of powder frame (2) is large aperture section,
The lower part for scraping the internal ladder axis hole of powder frame (2) is small-bore section, scrape the height of the large aperture section of the ladder axis hole of powder frame (2) with
The height for scraping the big axle journal section of powder frame (2) is identical, scrapes the height of the small-bore section of the ladder axis hole of powder frame (2) and scrapes powder frame (2)
Pilot pin section height it is identical, the lower surface for scraping powder frame (2) is provided with the cross groove being recessed upwards, scrapes in powder frame (2)
It is provided with one and scrapes powder bar (1), scraping powder bar (1) includes a cylindrical body, scrapes and is spaced on the external cylindrical surface of the cylindrical body of powder bar (1)
Six be evenly distributed with scrape powder bar circular groove (13), scrape the external cylindrical surface of the cylindrical body of powder bar (1) and scrape powder frame (2) inside
Ladder axis hole large aperture section hole wall clearance fit, scrape at the lower end surface center of the cylindrical body of powder bar (1) by one to
The cylindrical bar of lower setting is connected with a cross frame, scrape powder bar (1) cross frame can with scrape the ten of powder frame (2) lower surface
Font groove clearance fit scrapes the hole wall clearance fit of the cross frame of powder bar (1) and the central through hole of die sleeve (7), and three fixed
Position pin (12) both passes through the outside cylinder of the upper circular through-hole (3) and the cylindrical body for scraping powder bar (1) for the big axle journal section for scraping powder frame (2)
Powder bar circular groove (13) cooperates scraping on face or three positioning pins (12) both pass through under the big axle journal section for scraping powder frame (2)
Portion's circular through hole (4) scrapes powder bar circular groove (13) cooperation on the external cylindrical surface of the cylindrical body of scraping powder bar (1), with to scraping powder
Bar (1) is positioned, and mold push-down head (8) is protruded by the lower openings of die sleeve (7) and is fixed in die sleeve (7), and mold pushes
Space between the upper surface of head (8) and the cross frame for scraping powder bar (1) is mold cavity (9).
2. a kind of layering power spreading device for powder metallurgy function-graded material according to claim 1, feature exist
In there are two the connections of the circular support platform of the axisymmetrical about support platform (6) for setting in the support platform (6)
Through-hole, there are two down-set circles corresponding with the support platform of support platform (6) connection through-hole for support frame (11) lower surface
Cylindrical support frame connection pillar (10), support frame connection pillar (10) lower part have external screw thread, two support frame connection pillars
(10) with the connection via clearance cooperation of corresponding support platform, the external screw thread of support frame connection pillar (10) and positioned at support platform
(6) nut above upper surface (5) is threadedly coupled.
3. a kind of layering power spreading device for powder metallurgy function-graded material according to claim 1, feature exist
In the scale for indicating height is carved in the small axle diameter section outer surface for scraping powder frame (2).
4. a kind of layering power spreading device for powder metallurgy function-graded material according to claim 1, feature exist
In scraping and be threadedly coupled at the upper end and the lower end surface center for the cylindrical body for scraping powder bar (1) of the cylindrical bar of powder bar (1).
5. a kind of layering powdering for powder metallurgy function-graded material as claimed in any of claims 1 to 4
Device, which is characterized in that the height for scraping the cylindrical body of powder bar (1) is less than the height for scraping the large aperture section of the ladder axis hole of powder bar (2)
Degree.
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CN112338193A (en) * | 2020-10-12 | 2021-02-09 | 集美大学 | Multilayer mixed material sizing device and sizing method |
CN114309600A (en) * | 2022-01-04 | 2022-04-12 | 陕西科技大学 | Gradient material preparation device adopting aerodynamic principle and preparation method thereof |
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