CN102643096A - Method and device for preparing gradient material containing continuously changed components - Google Patents
Method and device for preparing gradient material containing continuously changed components Download PDFInfo
- Publication number
- CN102643096A CN102643096A CN2011104305503A CN201110430550A CN102643096A CN 102643096 A CN102643096 A CN 102643096A CN 2011104305503 A CN2011104305503 A CN 2011104305503A CN 201110430550 A CN201110430550 A CN 201110430550A CN 102643096 A CN102643096 A CN 102643096A
- Authority
- CN
- China
- Prior art keywords
- gradient material
- powder
- component
- screw rod
- continually varying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a method and a device for preparing a gradient material containing continuously changed components. The method comprises the following steps: controlling the rotation speed of a stepping motor by a computer control system according to designed gradient material components; driving an extrusion screw by virtue of the stepping motor so as to extrude two or more materials in a certain proportion from two or more charging hoppers at a preset speed; evenly mixing the extruded materials in a powder mixing device and piling gradient powder in a deposition mould; and carrying out cold-press molding and then sintering to obtain the gradient material containing continuously changed components. The method disclosed by the invention is simple and practicable and can be used for preparing the gradient material containing multiple components and any controllable structure without any dispersing agents.
Description
Technical field
The present invention relates to a kind of method and device for preparing component continually varying gradient material, more specifically to a kind of method and device that adopts computer control screw rod extruded velocity to prepare component continually varying gradient material.
Background technology
Gradient material is a kind of advanced composite material that grows up the 1980s.The composition of gradient material, structure are in material thickness or the continuous or accurate variation continuously of length direction, and performance also changes in gradient.Gradient material is selected two kinds of (or multiple) performance material different for use, through changing the The Nomenclature Composition and Structure of Complexes of material continuously, makes its interface disappearance cause the performance of material slowly to change along with the variation of the The Nomenclature Composition and Structure of Complexes of material, forms function-graded material.Compare with conventional composite materials, gradient material can also improve cohesive strength widely in the advantage of two kinds of materials of performance, effectively alleviate unrelieved stress and thermal stresses.Gradient material is connected inconsistent two kinds of materials as transition layer; The material that particularly differs greatly for two kinds of thermal expansivity; Like the W/Cu gradient material, the thermal stresses when adopting the gradient-structure transition effectively to alleviate high temperature, the high-temperature behavior and the thermal shock resistance of raising material.
The method for preparing at present gradient material mainly contains powder metallurgic method, chemical vapour deposition, physical vapor deposition, spraying method, self-spread synthesizing method, laser cladding process etc.Chemical Vapor deposition process and physical vaporous deposition cost are high, and can only be used for preparing thin-film material.Spraying method and laser apply the preparation that also just is used for coating usually.Powder art metallurgy method prepares gradient material, normally adopts preparation gradient material green compact such as lay-up method, cosedimentation method earlier, and sintering is processed gradient material then.But still there is the interface of layer and layer in the gradient material of lay-up method preparation, does not form the successive gradient-structure, and this is a very big shortcoming for preparing the high-performance gradient material.The cosedimentation method can realize the continuous transition of material component, yet being difficult to the component of control gradient material, settling process distributes, and also very high to the requirement of powder and sedimentation liquid, complex process.
One Chinese patent application CN1510069A discloses and has a kind ofly prepared the method for polymer gradient functional materials through coextruding method, and it, carries out level with feed composition in the gradient ratio and divide batching component and performance requriements according to made polymer gradient material; Divide batching to add step by step in the feeding device of forcing machine the level that is disposed by the gradient function of material required feeding quantity and the funtcional relationship of process period; The temperature of control outlet of extruder is extruded the thick sheet fusion strip of 0.25～3mm in the material melting temperature scope; Again it is reeled or laminate, process the polymer gradient material that The Nomenclature Composition and Structure of Complexes changes in gradient.This method obviously can obtain the Gradient distribution preset more accurately; Preparation efficiency has also obtained lifting; But under the limited stack number of plies, can not pass through the mutual diffusion of bonding interface phase, then be not enough to obtain continuous variation if form layer; Interface between layer and the layer also will weaken the performance of material, strictly speaking can not be called the continuous gradient functional materials.Moreover its implementation process is complicated, and production process is many, only can obtain the goods of some simple shape and specified shape, is difficult to prepare complex-shaped goods and continuous section bar, is not suitable for the preparation of the gradient material of high-melting point metal base and ceramic base.
Summary of the invention
The object of the present invention is to provide a kind of technology method and the device that prepare component continually varying gradient material simple, control easily,, improve control accuracy and production efficiency through computer system control.
To achieve these goals, the present invention adopts following technical scheme:
A kind of method for preparing component continually varying gradient material may further comprise the steps:
A) component parameter, extrusion screw rod 4 rotating speeds and the powder feeding rate quantitative relationship of preset gradient material and the step of extrusion screw rod 4 rotating speeds and the funtcional relationship of process period on computer control system;
B), and drive extrusion screw rods 4 are extruded material powder 3 from the hopper 2 of feeding by predetermined speed and powder feeding rate step by stepper-motor 5 by the rotation of computer control system 1 control step motor 5;
C) material powder of extruding 3 in meal mixer 6 uniform mixing and in deposition mould 8 formation of deposits component continually varying powder pile up 7 step;
D) to pile up 7 be the gradient material green compact through coldmoulding to powder, and sintering obtains the step of gradient material again.
Specifically; The present invention adopts computer control system 1 according to the parameter that is provided with, and sends instruction control stepper-motor 5 and rotates, and stepper-motor 5 drives extrusion screw rod 4 material powder 3 is extruded from charging hopper 2; It is mixed to fall into meal mixer 6, is deposited on afterwards in the mould 8; In the sedimentary process, computer control system synchronously changes the rate of extrusion of two kinds of powders, thereby realizes gradually changing of component, until the gradient material of accomplishing design requirements.Its process is: according to the composition designing requirement of gradient material, set the parameter of gradient material composition with variation in thickness on computers; Confirm the quantitative relationship of screw speed and two kinds of powder powder feeding rates of screw rod powder conveyer; Computingmachine is according to the data of composition, screw speed and powder feeding rate on each thickness of gradient material; Accurately control the rotating speed of two stepper-motors; Stepper-motor drives the screw rod of screw rod powder conveyer; Powder in two hoppers is extruded in the ratio of design requirements, and two kinds of powders are deposited in the mould behind overmulling powder device; Computingmachine is according to the variation of gradient material composition with thickness; Synchronously control the powder feed rate of two kinds of powders; Pile up until the powder of accomplishing gradient material, coldmoulding obtains composition continually varying gradient material green compact then, obtains the gradient material that component adheres to specification through oversintering again.
In a preferred embodiment, described material powder 3 is the powder of one-component or two or more powders, can prepare one-component or polycomponent continually varying gradient material thus.
Control the extruded velocity of material powder 3 through the rotating speed of control extrusion screw rod 4; Thereby control the ratio of single powder; When stepper-motor 5 is controlled two above extrusion screw rods 4 respectively and rotated,, thereby control the ratio of two or more powders through the rotating speed of control extrusion screw rod 4.Further, said extrusion screw rod 4 can be any one or the combination in single screw rod, twin screw or the multiscrew.
The component of said gradient material is discrete or successive, can also be that component distributes arbitrarily.Further, the component of said gradient material distributes by increasing or decreasing or interval mode.
The invention still further relates to a kind of device that is used to prepare component continually varying gradient material, comprise computer control system 1, stepper-motor 5, extrusion screw rod 4, charging hopper 2, meal mixer 6 and deposition mould 8; Computer control system 1 links to each other with stepper-motor 5 and controls its rotating speed; Stepper-motor 5 links to each other with extrusion screw rod 4 and drives its rotation; Extrusion screw rod 4 passes charging hopper 2 and material powder 3 is extruded the meal mixer 6 that falls under being arranged in, and is provided with deposition mould 8 under the meal mixer 6.
One preferred embodiment in, the quantity of the said stepper-motor 5 of employing is identical with the species number of material powder 3.Control corresponding extrusion screw rod 4 respectively through different stepper-motor 5 and rotate,, obtain extruding the specified proportion of powder according to the difference of extrusion screw rod 4 rotating speeds, thus the continuous variation of control component.When material powder 3 is two kinds of components, adopt 2 stepper-motors 5 to control two extrusion screw rods 4 respectively and rotate, extrude two kinds of mixing of materials respectively by predetermined proportion.
Said meal mixer 6 is common mixed powder device, can adopt motor-operated foliated lamellar stirring to mix the mode of powder or mix the mode of powder through air-flow, but be not limited thereto.One preferred embodiment in, said meal mixer 6 is made up of the cylindrical cavity 10 of superposed funnel-form cavity 9 and bottom, rotates through phonomoter 11 drivening rods 12, connecting rod is provided with blade 13.Preferably, meal mixer 6 is provided with multistage blade 13, and the number of every grade blade 13 has several, is generally more than two.13 rotations of phonomoter 11 drivening rods, two kinds of powders are in falling process, and the blade that is rotated mixes for more than 13 time, realizes mixing uniformly.
Advantage of the present invention has: (1) can prepare the gradient material of polycomponent, arbitrary structures as required; (2) structure of gradient material is accurately controlled more easily; (3) adopt computer automation control, technology is simple, need not to use liquid dispersant, need not to test the granularity, size-grade distribution of powder and to particle classifying; (4) can prepare large-sized block gradient material.
Description of drawings
Fig. 1 is the device synoptic diagram that is used to prepare component continually varying gradient material.
Fig. 2 is the structure for amplifying synoptic diagram of meal mixer.
Embodiment
Below in conjunction with Fig. 1 the present invention is done further expansion explanation, but it is pointed out that method of manufacture of the present invention is not limited to use the device of this ad hoc structure.Obviously it is understandable that to those skilled in the art,, also can be directly applied for equipment in these unspecified other types or structure even following description is not done any adjustment or correction.Fig. 1 is the device synoptic diagram that is used to prepare component continually varying gradient material, comprising: wherein, 1 is computer control system, charging hopper 2, material powder 3, extrusion screw rod 4, stepper-motor 5, meal mixer 6, powder accumulation 7, deposition mould 8.
The interface of computer control system 1 connects stepper-motor 5; The rotating shaft of stepper-motor 5 is connected with extrusion screw rod 4; Extrusion screw rod 4 passes the charging hopper 2 that material powder 3 is housed, and the discharge port below of charging hopper 2 is meal mixers 6, and meal mixer 6 belows are the moulds 8 that are used to accept the deposition powder.
The method for preparing component continuous gradient material that the present invention relates to the steps include:
A) component of design gradient material distributes
The composition that the design of gradient material power function commonly used is described gradient material distributes, and for the gradient material (supposing that component is A, B) of two kinds of components, its expression formula can be expressed as:
F wherein
A(x), f
B(x) be respectively the volume(tric)fraction of component A, B, L is the thickness of gradient material, and a, b are constant, and P is the component dispersion index.
B) confirm the relation of the rotating speed and the powder feeding rate of screw rod pay-off
The corresponding relation of powder feeding rate and screw speed can be measured through testing.Suppose that powder feeding rate is proportional to the rotating speed of screw rod, then the relation of powder feeding rate and screw speed can be expressed as:
V
A(x)＝K
A·ω
A(3)
V
B(x)＝K
B·ω
B(4)
In the formula, V
A, V
BBe respectively the powder feeding rate of powder A, B, ω A, ω B are screw speed, K
A, K
BIt is scale-up factor.
C) preparation of continuous gradient material
According to formula (1)-(4), calculate two screw speed ratios:
Because there is certain scope in the rotating speed of stepper-motor, the maximum speed of revolution of establishing stepper-motor is ω 0,
Work as ω
B≤ω
AThe time, make ω
A=ω
0, ω then
B=ω
A/ R (x) (6)
Otherwise, get ω
B=ω
0, ω
A=ω
BR (x) (7)
The floorage of supposing lithosomic body is S, and on arbitrary thickness of gradient material, highly the health check-up infinitesimal for Δ x needs the sedimentary time to do
When the value of Δ x was bigger, the component of gradient material was discontinuously arranged, has the interface between the different layers;
When the value of Δ x was very little, the component of gradient material became continuous variation.
The component of in computer control system 1, setting the gradient material of expection distributes, and sets the parameter of screw speed and powder feeding rate relation.Computer control system 1 is accurately controlled the rotating speed of two stepper-motors 5 according to the parameter of setting, and the extrusion screw rod 4 that stepper-motor 5 drives the screw rod powder conveyer rotates, and the powder 3 in the charging hopper 2 is extruded in proportion.Two kinds of powders 3 are deposited in the mould 8 behind overmulling powder device meal mixer 6; Form component and be continually varying powder accumulation 7; Obtain the gradient material green compact through coldmoulding,, finally process the gradient material that component structure adheres to specification at last with the gradient material green sintering.
Meal mixer 6 can be the mixed powder device of using always, also can be the device that can realize similar functions, V-type meal mixer for example commonly used.For realizing two kinds of raw material uniform mixing, the present invention adopts mixed powder device as shown in Figure 2, and meal mixer 6 is made up of the cylindrical cavity 10 of superposed funnel-form cavity 9 and bottom, rotates through phonomoter 11 drivening rods 12, and connecting rod is provided with blade 13.Preferably, meal mixer 6 is provided with multistage blade 13, and the number of every grade blade 13 has several, is generally more than two.13 rotations of phonomoter 11 drivening rods, two kinds of powders are in falling process, and the blade that is rotated mixes for more than 13 time, is mixed uniformly.The device of specified otherwise or instrument do not adopt device well known to those skilled in the art or equipment to get final product among the present invention.For example extrusion screw rod, deposition mould etc.
In addition, through increasing the tricks of charging hopper 2, extrusion screw rod 4 and stepper-motor 5 these assemblies, can realize that the composition continually varying powder of 3 kinds or various ingredients is piled up, thereby prepare multi-component component continually varying function-graded material.
Although the preceding text specific embodiments of the invention has given to describe in detail and explanation; But should indicatedly be; We can carry out various equivalences to above-mentioned embodiment according to conception of the present invention and change and modification; When the function that it produced does not exceed spiritual that specification sheets and accompanying drawing contain yet, all should be within protection scope of the present invention.
Claims (11)
1. method for preparing component continually varying gradient material may further comprise the steps:
A) component parameter, extrusion screw rod (4) rotating speed and the powder feeding rate quantitative relationship of preset gradient material and the step of extrusion screw rod (4) rotating speed and the funtcional relationship of process period on computer control system;
B), and drive extrusion screw rod (4) is extruded material powder (3) from the hopper (2) of feeding by predetermined speed and powder feeding rate step by stepper-motor (5) by the rotation of computer control system (1) control step motor (5);
The step of the material powder of c) extruding (3) uniform mixing and formation of deposits component continually varying powder accumulation (7) in deposition mould (8) in meal mixer (6);
D) powder accumulation (7) is the gradient material green compact through coldmoulding, and sintering obtains the step of gradient material again.
2. the method for preparing component continually varying gradient material as claimed in claim 1 is characterized in that described material powder (3) is the powder of one-component or two or more powders.
3. the method for preparing component continually varying gradient material as claimed in claim 1 is characterized in that controlling the extruded velocity of material powder (3) through the rotating speed of control extrusion screw rod (4), thereby controls the ratio of single or two or more powders.
4. the method for preparing component continually varying gradient material as claimed in claim 1 is characterized in that said extrusion screw rod (4) is any one or the combination in single screw rod, twin screw or the multiscrew.
5. the method for preparing component continually varying gradient material as claimed in claim 1 is characterized in that meal mixer (6) mixes the device of powder for the employing mixed powder of motor-operated foliated lamellar stirring or through air-flow.
6. the method for preparing component continually varying gradient material according to claim 1, the component that it is characterized in that gradient material is discrete or successive, or component distributes arbitrarily.
7. the method for preparing component continually varying gradient material according to claim 6 is characterized in that the component of gradient material distributes by increasing or decreasing or interval mode.
8. a device that is used to prepare component continually varying gradient material comprises computer control system (1), stepper-motor (5), extrusion screw rod (4), charging hopper (2), meal mixer (6) and deposition mould (8); Computer control system (1) links to each other with stepper-motor (5) and controls its rotating speed; Stepper-motor (5) links to each other with extrusion screw rod (4) and drives its rotation; Extrusion screw rod (4) passes charging hopper (2) and material powder (3) is extruded the meal mixer (6) that falls under being arranged in, and is provided with deposition mould (8) under the meal mixer (6).
9. the device that is used to prepare component continually varying gradient material according to claim 8, the quantity of the said stepper-motor (5) that it is characterized in that adopting is identical with the species number of material powder (3).
10. the device that is used to prepare component continually varying gradient material according to claim 8; It is characterized in that said meal mixer (6) constitutes the internal space by the cylindrical cavity (10) of superposed funnel-form cavity (9) and bottom; Connecting rod (12) is connected with phonomoter (11) directly over being positioned at and the cylindrical cavity (10) that vertically extends to the bottom is located, and connecting rod is provided with blade (13).
11. the device that is used to prepare component continually varying gradient material according to claim 10 it is characterized in that said meal mixer (6) is provided with multistage blade, and the number of every grade blade (13) is more than two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430550.3A CN102643096B (en) | 2011-12-20 | 2011-12-20 | Method and device for preparing gradient material containing continuously changed components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430550.3A CN102643096B (en) | 2011-12-20 | 2011-12-20 | Method and device for preparing gradient material containing continuously changed components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102643096A true CN102643096A (en) | 2012-08-22 |
| CN102643096B CN102643096B (en) | 2014-03-19 |
Family
ID=46656216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110430550.3A Active CN102643096B (en) | 2011-12-20 | 2011-12-20 | Method and device for preparing gradient material containing continuously changed components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102643096B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042218A (en) * | 2012-12-10 | 2013-04-17 | 西安理工大学 | Molding apparatus of functionally graded materials |
| CN103496149A (en) * | 2013-10-23 | 2014-01-08 | 四川大学 | Continuous preparing forming device of polymer functional gradient materials |
| CN104552951A (en) * | 2015-01-06 | 2015-04-29 | 彭晓领 | 3D printing preparation method of polymeric gradient material |
| CN106041065A (en) * | 2016-07-08 | 2016-10-26 | 上海大学 | Automatic and fast preparing system for continuous-component inorganic block |
| US20170120331A1 (en) | 2015-10-29 | 2017-05-04 | Seiko Epson Corporation | Manufacturing method for three-dimensional structure, manufacturing apparatus for three-dimensional structure, and control program for manufacturing apparatus |
| CN106825582A (en) * | 2017-02-13 | 2017-06-13 | 朱远志 | A kind of manufacture method of gradient thermal source |
| CN107263677A (en) * | 2016-12-17 | 2017-10-20 | 贵州省建筑材料科学研究设计院有限责任公司 | A kind of vacuum extruder general clas s library control method |
| CN110920072A (en) * | 2019-12-05 | 2020-03-27 | 中国航发北京航空材料研究院 | Preparation method of gradient material component |
| CN111036899A (en) * | 2019-11-20 | 2020-04-21 | 中国船舶重工集团公司第十二研究所 | Forming method of particle reinforced aluminum matrix composite material part |
| CN112108647A (en) * | 2020-08-17 | 2020-12-22 | 西北工业大学 | Additive manufacturing method and preparation method and device using powder core wire |
| CN112535290A (en) * | 2020-12-31 | 2021-03-23 | 张学记 | Composition capable of rapidly dispelling effects of alcohol and preparation method and device thereof |
| CN113333747A (en) * | 2021-06-28 | 2021-09-03 | 江西理工大学 | Tungsten copper functional gradient material with continuously-changed components and preparation method thereof |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003160832A (en) * | 2001-11-26 | 2003-06-06 | Ueda Seni Kagaku Shinkokai | Density inclined, functionally gradient material and manufacturing method therefor |
| JP2006103135A (en) * | 2004-10-05 | 2006-04-20 | Japan Aerospace Exploration Agency | Method for producing functionally gradient material and its molding apparatus |
| CN101342640A (en) * | 2007-07-11 | 2009-01-14 | 中国科学院沈阳自动化研究所 | Coaxial powder feeding system for quickly molding and producing functional gradient material with laser |
| CN101407123A (en) * | 2008-11-20 | 2009-04-15 | 天津大学 | Wear resistant copper-based gradient material for manufacturing pantograph slider and preparation thereof |
| CN101618595A (en) * | 2009-07-20 | 2010-01-06 | 河南理工大学 | Co-extrusion preparation method of polymer functionally gradient materials (FGM) and products |
-
2011
- 2011-12-20 CN CN201110430550.3A patent/CN102643096B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003160832A (en) * | 2001-11-26 | 2003-06-06 | Ueda Seni Kagaku Shinkokai | Density inclined, functionally gradient material and manufacturing method therefor |
| JP2006103135A (en) * | 2004-10-05 | 2006-04-20 | Japan Aerospace Exploration Agency | Method for producing functionally gradient material and its molding apparatus |
| CN101342640A (en) * | 2007-07-11 | 2009-01-14 | 中国科学院沈阳自动化研究所 | Coaxial powder feeding system for quickly molding and producing functional gradient material with laser |
| CN101407123A (en) * | 2008-11-20 | 2009-04-15 | 天津大学 | Wear resistant copper-based gradient material for manufacturing pantograph slider and preparation thereof |
| CN101618595A (en) * | 2009-07-20 | 2010-01-06 | 河南理工大学 | Co-extrusion preparation method of polymer functionally gradient materials (FGM) and products |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042218B (en) * | 2012-12-10 | 2015-02-18 | 西安理工大学 | Molding apparatus of functionally graded materials |
| CN103042218A (en) * | 2012-12-10 | 2013-04-17 | 西安理工大学 | Molding apparatus of functionally graded materials |
| CN103496149A (en) * | 2013-10-23 | 2014-01-08 | 四川大学 | Continuous preparing forming device of polymer functional gradient materials |
| CN103496149B (en) * | 2013-10-23 | 2015-09-02 | 四川大学 | Polymer gradient functional material continuous production shaped device |
| CN104552951A (en) * | 2015-01-06 | 2015-04-29 | 彭晓领 | 3D printing preparation method of polymeric gradient material |
| US11185922B2 (en) | 2015-10-29 | 2021-11-30 | Seiko Epson Corporation | Manufacturing method for three-dimensional structure, manufacturing apparatus for three-dimensional structure, and control program for manufacturing apparatus |
| US20170120331A1 (en) | 2015-10-29 | 2017-05-04 | Seiko Epson Corporation | Manufacturing method for three-dimensional structure, manufacturing apparatus for three-dimensional structure, and control program for manufacturing apparatus |
| JP2017082293A (en) * | 2015-10-29 | 2017-05-18 | セイコーエプソン株式会社 | Manufacturing method for three-dimensional structure, manufacturing apparatus therefor and control program therefor |
| CN106041065A (en) * | 2016-07-08 | 2016-10-26 | 上海大学 | Automatic and fast preparing system for continuous-component inorganic block |
| CN106041065B (en) * | 2016-07-08 | 2018-10-23 | 上海大学 | The inorganic bulk of continuous component automates quick preparation system |
| CN107263677A (en) * | 2016-12-17 | 2017-10-20 | 贵州省建筑材料科学研究设计院有限责任公司 | A kind of vacuum extruder general clas s library control method |
| CN106825582A (en) * | 2017-02-13 | 2017-06-13 | 朱远志 | A kind of manufacture method of gradient thermal source |
| CN111036899A (en) * | 2019-11-20 | 2020-04-21 | 中国船舶重工集团公司第十二研究所 | Forming method of particle reinforced aluminum matrix composite material part |
| CN110920072A (en) * | 2019-12-05 | 2020-03-27 | 中国航发北京航空材料研究院 | Preparation method of gradient material component |
| CN112108647A (en) * | 2020-08-17 | 2020-12-22 | 西北工业大学 | Additive manufacturing method and preparation method and device using powder core wire |
| CN112108647B (en) * | 2020-08-17 | 2021-09-24 | 西北工业大学 | Additive manufacturing method and preparation method and device using powder core wire |
| CN112535290A (en) * | 2020-12-31 | 2021-03-23 | 张学记 | Composition capable of rapidly dispelling effects of alcohol and preparation method and device thereof |
| CN113333747A (en) * | 2021-06-28 | 2021-09-03 | 江西理工大学 | Tungsten copper functional gradient material with continuously-changed components and preparation method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102643096B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102643096B (en) | Method and device for preparing gradient material containing continuously changed components | |
| Mason et al. | Aqueous-based extrusion of high solids loading ceramic pastes: Process modeling and control | |
| US20170203469A1 (en) | Mixer, method of mixing raw material for powder metallurgy binder for injection moulding composition | |
| US6454972B1 (en) | Solid freeform fabrication using chemically reactive suspensions | |
| CN104841935B (en) | A kind of mixed slurry 3D printing device and its printing-forming method | |
| Wang et al. | Rheological and extrusion behavior of dental porcelain slurries for rapid prototyping applications | |
| US20140183792A1 (en) | Method and apparatus for freeze-form extrusion fabrication of functionally gradient composite parts | |
| CN108097956B (en) | Large-scale complex gradient functional component laser direct-manufacturing powder proportioning dynamic powder feeding device and processing equipment | |
| EP3505234B1 (en) | Method for making product in form of sheet or block and production device thereof | |
| KR101580295B1 (en) | Apparatus for manufacturing color concrete block | |
| Ye et al. | Direct ink writing of 3D-Honeycombed CL-20 structures with low critical size | |
| CN108273999A (en) | A kind of metal material high throughput preparation method based on 3D printing technique | |
| TW201311344A (en) | System for dispersing finely dispersed solids into high-viscosity products | |
| CN107008202A (en) | The online feed proportioning system of lithium battery | |
| CN105965895B (en) | 3D printing multiple convolution extruder and control system | |
| German | Homogeneity effects on feedstock viscosity in powder injection molding | |
| CN103350498B (en) | Method and equipment for manufacturing heterogeneous solid model | |
| CN112757642A (en) | Screw type feeding device, material extrusion system and method for 3D printing | |
| CN105965716A (en) | Continuous production process and device for rubber compound | |
| CN205164550U (en) | Circular arc helicoid blade differential kneading machine | |
| CN201755474U (en) | Automatic batching device | |
| JPH05502847A (en) | Microdosing device | |
| CN207495792U (en) | A kind of concrete mixing plant | |
| CN106747592A (en) | A kind of preparation method and applications of ceramic supporting body pug | |
| Beeaff et al. | Rheological behavior of coextruded multilayer architectures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |