CN109249026A - A kind of moulding process squeezing out rolling with powder - Google Patents
A kind of moulding process squeezing out rolling with powder Download PDFInfo
- Publication number
- CN109249026A CN109249026A CN201811340017.6A CN201811340017A CN109249026A CN 109249026 A CN109249026 A CN 109249026A CN 201811340017 A CN201811340017 A CN 201811340017A CN 109249026 A CN109249026 A CN 109249026A
- Authority
- CN
- China
- Prior art keywords
- powder
- green compact
- moulding process
- feeding
- out rolling
- 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.)
- Pending
Links
Classifications
-
- 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
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- 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
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
-
- 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
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
- B28B11/16—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for extrusion or for materials supplied in long webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to field of powder metallurgy, specifically disclose a kind of moulding process that rolling is squeezed out with powder.The method comprises the following steps: (1) prepared by feeding: feeding is made after metal powder or ceramic powders and high polymer binder are mixed；(2) it squeezes out rolling: feeding being squeezed out into obtain sheet profile green compact, green compact are then pulled into roller and are rolled；(3) green compact are cut: will be cut into sheet green compact by the green compact of rolling；(4) degreasing sintered: sheet green compact are subjected to degreasing sintered final products.The method achieve by the combination of plastics extrusion forming technology and PM technique；It can in high volume, expeditiously be produced with sufficiently complex two-dimensional section shape profile；Furthermore, due to joined a large amount of binder in feeding, mobility is greatly enhanced, can lower than 200 DEG C at a temperature of carry out extrusion molding, and limitation of the conventional metals hot extrusion forming process on manufacture complicated shape and fine structure is breached, is industrially had broad application prospects.
Description
Technical field
The present invention relates to field of powder metallurgy, and in particular to a kind of moulding process that rolling is squeezed out with powder.
Background technique
Sheet or plate-shape metal product traditional diamond-making technique have metal hot extrusion molding, and the metal hot extrusion molding is
Metal material is heated to hot forging forming temperature and squeezed by finger, i.e., before extrusion by the recrystallization temperature of blank heating to metal
The extruding carried out at a temperature of some above；The thickness for the metal product being prepared by hot extrusion molding is usually larger and produces
Process is cumbersome, and production efficiency is not high.
Therefore, it develops a kind of thin thickness and the sheet of high production efficiency or the processing method of plate-shape metal product is with wide
Market prospects.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of moulding process that rolling is squeezed out with powder.It is described at
Type handicraft thinner thickness, high production efficiency.
Above-mentioned technical problem to be solved by this invention, is achieved by the following technical programs:
A kind of moulding process squeezing out rolling with powder, it includes following steps:
(1) prepared by feeding: feeding is made after metal powder or ceramic powders and high polymer binder are mixed；
(2) it squeezes out rolling: feeding being squeezed out into obtain sheet profile green compact, green compact are then pulled into roller and are rolled；
(3) green compact are cut: will be cut into sheet green compact by the green compact of rolling；
(4) degreasing sintered: sheet green compact are subjected to degreasing sintered final products.
Preferably, the moulding process that rolling is squeezed out with powder, further includes resintering shaping step.
Preferably, the percent by volume of metal powder or ceramic powders accounts for feeding totality in feeding described in step (1)
Long-pending 40-60%.
Preferably, high polymer binder described in step (1) includes the mixing of one or more of following ingredient:
POM, PE, PP, PW, EVA and SA.
It is further preferred that the high polymer binder is by PW, PE, SA when ceramic powders select aluminium nitride powder
Composition.
Most preferably, the percent by volume of described PW, PE, SA be 50wt.% PW, the PE of 45wt.% and
The SA of 5wt.%.
It is further preferred that when metal powder selects tungsten copper powder, the high polymer binder by POM, PE, EVA and
SA composition.
Most preferably, the percent by volume of described POM, PE, EVA and SA be 86wt.%POM, the PE of 6wt.%,
The SA of the EVA and 2wt.% of 6wt.%.
Preferably, when ceramic powders select aluminium nitride powder, degreasing sintered method described in step (4) specifically:
Sheet green compact first impregnate to carry out solvent degreasing 16~30 hours in organic solvent, then takes out green compact, is put into degreasing after drying
Sintering furnace；It is passed through the nitrogen of flowing in degreasing sintered furnace, remaining binder is removed by thermal debinding at 400~500 DEG C；With
Temperature is gradually risen to 1700~1900 DEG C afterwards, is cooled down after sintering 0.8~1.5 hour to get final products are obtained.
Preferably, when metal powder selects tungsten copper powder, degreasing sintered method described in step (4) specifically: sheet
Green compact are put into degreasing sintered furnace；It is passed through the nitrogen of flowing in degreasing sintered furnace, is removed at 400~500 DEG C by thermal debinding viscous
Tie agent；Temperature is then gradually risen to 1300~1400 DEG C, is cooled down after sintering 2.5~4 hours to get final products are obtained.
The utility model has the advantages that the present invention provides the processing method of a kind of completely new sheet or plate-shape metal product, this method is real
The combination by plastics extrusion forming technology and PM technique is showed；It can in high volume, expeditiously be produced with very
Complicated two-dimensional section shape profile；Further, since joined a large amount of binder in feeding, mobility is greatly enhanced, can be with
Lower than 200 DEG C at a temperature of carry out extrusion molding, and breach conventional metals hot extrusion forming process manufacture complex shape
Limitation on shape and fine structure, industrially has broad application prospects.Specifically, the advantages of this method is as follows: 1) leading to
Crossing roller rolling can make green compact thickness become smaller, and products thickness is relatively thin after sintering, up to 0.3mm；2) material selection range is wide, such as
Powder metallurgy/the ceramic material such as aluminium nitride, tungsten copper, stainless steel can be used in squeezing out rolling；3) it is continuous work that powder, which squeezes out rolling,
Sequence, production efficiency are higher；4) can do large scale product and two sides has the product of different shape structure.In addition, in the present invention
The metal product being prepared under the conditions of the specific embodiment also has excellent thermal conductivity.
Specific embodiment
The present invention is explained further below in conjunction with specific embodiment, but embodiment does not do any type of limit to the present invention
It is fixed.
Embodiment 1
It is to be added to account for the high polymer binder (high score that total volume is 55vol.% in 1.6 μm of aluminium nitride powders in partial size D50
Sub- binder are as follows: the SA of the PE and 5wt.% of the PW of 50wt.%, 45wt.%), metal powder is added first in mixer
Heat is then gradually adding PE, PW and SA to 160 DEG C；After being kneaded uniformly, then the feeding to be granulated by pelletizer manufacture；120
It DEG C being shaped by extruder, produces sheet green compact, then go out 0.5mm thin plate through mill milling, roll is smooth surface on one side, one
Face is rectangular array square groove (square groove is having a size of 1*1*0.1mm, line width 1mm), is then cut into 50*50mm green compact；Green compact are soaked
It steeps into the solution of 40 DEG C of n-hexane, keeps the temperature progress solvent degreasing in 24 hours；Green compact are then taken out, degreasing burning is put into after drying
Freezing of a furnace.It is passed through the nitrogen of flowing in degreasing sintered furnace, remaining binder is removed by thermal debinding at 450 DEG C；Then temperature
Degree gradually rises to 1800 DEG C, and sintering cools down after 1 hour；Aluminium nitride band rectangle square groove plate is finally obtained, thermal conductivity is greater than 150W/
m·K。
Compared with the existing methods, which realizes plastics extrusion forming technology and PM technique
In conjunction with；It can in high volume, expeditiously be produced with sufficiently complex two-dimensional section shape profile；Further, since in feeding
Joined a large amount of binder, mobility greatly enhances, can lower than 200 DEG C at a temperature of carry out extrusion molding, and dash forward
Limitation of the conventional metals hot extrusion forming process on manufacture complicated shape and fine structure has been broken, has industrially been had wide
Application prospect.
Embodiment 2
It is to be added to account for high polymer binder (the macromolecule bonding that total volume is 45vol.% in 1 μm of tungsten copper powder in partial size D50
Agent are as follows: the SA of the EVA and 2wt.% of the PE of 86wt.%POM, 6wt.%, 6wt.%), first metal powder in mixer
End is heated to 180 DEG C, is then gradually adding POM, PE, EVA and SA；After being kneaded uniformly, then granulated by pelletizer manufacture
Feeding.It is shaped at 160 DEG C by extruder, produces sheet green compact, then go out 1mm thin plate through mill milling, be then cut into
100*100mm green compact.It is then placed in degreasing sintered furnace；The nitrogen of flowing is passed through in degreasing sintered furnace, it is de- by heat at 450 DEG C
Rouge removes binder；Temperature is then gradually risen to 1350 DEG C, sintering cools down after 3 hours.Thermal conductivity is finally obtained to be greater than
170W/mK tungsten copper thin plate.
Compared with the existing methods, which realizes plastics extrusion forming technology and PM technique
In conjunction with；It can in high volume, expeditiously be produced with sufficiently complex two-dimensional section shape profile；Further, since in feeding
Joined a large amount of binder, mobility greatly enhances, can lower than 200 DEG C at a temperature of carry out extrusion molding, and dash forward
Limitation of the conventional metals hot extrusion forming process on manufacture complicated shape and fine structure has been broken, has industrially been had wide
Application prospect.
Claims (10)
1. a kind of moulding process for squeezing out rolling with powder, which is characterized in that comprise the following steps:
(1) prepared by feeding: feeding is made after metal powder or ceramic powders and high polymer binder are mixed；
(2) it squeezes out rolling: feeding being squeezed out into obtain sheet profile green compact, green compact are then pulled into roller and are rolled；
(3) green compact are cut: will be cut into sheet green compact by the green compact of rolling；
(4) degreasing sintered: sheet green compact are subjected to degreasing sintered final products.
2. the moulding process according to claim 1 for squeezing out rolling with powder, which is characterized in that further include resintering shaping step
Suddenly.
3. the moulding process according to claim 1 for squeezing out rolling with powder, which is characterized in that described in step (1)
The percent by volume of metal powder or ceramic powders accounts for the 40-60% of feeding total volume in feeding.
4. the moulding process according to claim 1 for squeezing out rolling with powder, which is characterized in that described in step (1)
High polymer binder includes the mixing of one or more of following ingredient: POM, PE, PP, PW, EVA and SA.
5. the moulding process according to claim 4 for squeezing out rolling with powder, which is characterized in that when ceramic powders select nitrogen
When changing aluminium powder, the high polymer binder is made of PW, PE, SA.
6. the moulding process according to claim 5 for squeezing out rolling with powder, which is characterized in that described PW, PE, the SA's
Percent by volume is the PW, the SA of the PE and 5wt.% of 45wt.% of 50wt.%.
7. the moulding process according to claim 4 for squeezing out rolling with powder, which is characterized in that when metal powder selects tungsten
When copper powder, the high polymer binder is made of POM, PE, EVA and SA.
8. the moulding process according to claim 7 for squeezing out rolling with powder, which is characterized in that described POM, PE, the EVA
Percent by volume with SA is 86wt.%POM, the SA of the EVA and 2wt.% of the PE of 6wt.%, 6wt.%.
9. the moulding process according to claim 1 for squeezing out rolling with powder, which is characterized in that when ceramic powders select nitrogen
When changing aluminium powder, degreasing sintered method described in step (4) specifically: sheet green compact are first impregnated carry out in organic solvent it is molten
Agent degreasing 16~30 hours, green compact are then taken out, degreasing sintered furnace is put into after drying；The nitrogen of flowing is passed through in degreasing sintered furnace
Gas removes remaining binder by thermal debinding at 400~500 DEG C；Temperature is then gradually risen to 1700~1900 DEG C, is burnt
Cool down after knot 0.8~1.5 hour to get final products are obtained.
10. the moulding process according to claim 1 for squeezing out rolling with powder, which is characterized in that when metal powder is selected
When tungsten copper powder, degreasing sintered method described in step (4) specifically: sheet green compact are put into degreasing sintered furnace；Degreasing sintered
It is passed through the nitrogen of flowing in furnace, binder is removed by thermal debinding at 400~500 DEG C；Temperature is then gradually risen to 1300
Cool down after~1400 DEG C, sintering 2.5~4 hours to get final products are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340017.6A CN109249026A (en) | 2018-11-12 | 2018-11-12 | A kind of moulding process squeezing out rolling with powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340017.6A CN109249026A (en) | 2018-11-12 | 2018-11-12 | A kind of moulding process squeezing out rolling with powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109249026A true CN109249026A (en) | 2019-01-22 |
Family
ID=65043500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340017.6A Pending CN109249026A (en) | 2018-11-12 | 2018-11-12 | A kind of moulding process squeezing out rolling with powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109249026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250694A (en) * | 2020-03-08 | 2020-06-09 | 深圳艾利佳材料科技有限公司 | Injection molding method of high-strength high-toughness metal part and metal rotating shaft part |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720511A (en) * | 1969-03-18 | 1973-03-13 | British Iron Steel Research | Production of metal strip from powdered metal |
| JPS52148409A (en) * | 1976-04-22 | 1977-12-09 | Furukawa Battery Co Ltd | Method of producing sintered base plate for alkaline battery |
| JPS5310315A (en) * | 1976-07-15 | 1978-01-30 | Hitachi Cable Ltd | Preparation of wiry addition agent for steel |
| CN1194188A (en) * | 1997-03-24 | 1998-09-30 | 片山特殊工业株式会社 | Metal sheet, its producing method and electrode using said metal sheet battery |
| CN101545058A (en) * | 2009-05-07 | 2009-09-30 | 合肥工业大学 | Method for preparing WC-Co gradient hard alloy material |
| CN102099134A (en) * | 2008-07-16 | 2011-06-15 | 阿尔诺·弗里德里希斯 | Method and apparatus for producing a circular cylindrical body comprising a workable mass and having internal helical recesses |
| CN102672187A (en) * | 2012-05-08 | 2012-09-19 | 哈尔滨工业大学 | Preparation methods of layered titanium matrix composite material |
| CN102791402A (en) * | 2010-02-05 | 2012-11-21 | 西克索马特公司 | Method and apparatus of forming a wrought material having a refined grain structure |
| CN103567452A (en) * | 2013-08-15 | 2014-02-12 | 厦门虹鹭钨钼工业有限公司 | Preparing method of tungsten-copper alloy plate |
-
2018
- 2018-11-12 CN CN201811340017.6A patent/CN109249026A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720511A (en) * | 1969-03-18 | 1973-03-13 | British Iron Steel Research | Production of metal strip from powdered metal |
| JPS52148409A (en) * | 1976-04-22 | 1977-12-09 | Furukawa Battery Co Ltd | Method of producing sintered base plate for alkaline battery |
| JPS5310315A (en) * | 1976-07-15 | 1978-01-30 | Hitachi Cable Ltd | Preparation of wiry addition agent for steel |
| CN1194188A (en) * | 1997-03-24 | 1998-09-30 | 片山特殊工业株式会社 | Metal sheet, its producing method and electrode using said metal sheet battery |
| CN102099134A (en) * | 2008-07-16 | 2011-06-15 | 阿尔诺·弗里德里希斯 | Method and apparatus for producing a circular cylindrical body comprising a workable mass and having internal helical recesses |
| CN101545058A (en) * | 2009-05-07 | 2009-09-30 | 合肥工业大学 | Method for preparing WC-Co gradient hard alloy material |
| CN102791402A (en) * | 2010-02-05 | 2012-11-21 | 西克索马特公司 | Method and apparatus of forming a wrought material having a refined grain structure |
| CN102672187A (en) * | 2012-05-08 | 2012-09-19 | 哈尔滨工业大学 | Preparation methods of layered titanium matrix composite material |
| CN103567452A (en) * | 2013-08-15 | 2014-02-12 | 厦门虹鹭钨钼工业有限公司 | Preparing method of tungsten-copper alloy plate |
Non-Patent Citations (2)
| Title |
|---|
| 张明: "《纳米与新材料专辑 3》", 31 October 2004 * |
| 程继贵: "《第十五届华东五省一市粉末冶金技术交流会论文集》", 31 October 2014 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250694A (en) * | 2020-03-08 | 2020-06-09 | 深圳艾利佳材料科技有限公司 | Injection molding method of high-strength high-toughness metal part and metal rotating shaft part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106498205B (en) | A kind of manufacture method of the CuCr alloys of large scale high-compactness high uniformity | |
| CN105382262A (en) | Manufacturing method of heat conduction copper pipe with inner groove | |
| CN103352136B (en) | Copper-base contact material and manufacture craft | |
| CN100540699C (en) | A kind of ultra-fine cemented carbide powder plasticizing extrusion molding agent and its production and application | |
| CN103706746B (en) | With the half-closed extrusion and forging process of back shaft knuckle | |
| CN105252008A (en) | Method for preparing porous heat conduction copper pipes through powder extrusion forming technology | |
| CN103008377A (en) | Novel extrusion molding method for magnesium alloy plate | |
| CN109133927A (en) | A kind of short flow process of high performance graphite material | |
| JP2017509791A5 (en) | ||
| CN105382255A (en) | Nano tungsten powder injection molding method | |
| JP6890423B2 (en) | Manufacturing method and equipment for heat-deformed magnets | |
| CN106756212A (en) | The method that continuous casting even squeezes production precipitation strength type high-strength copper evanohm | |
| CN109249026A (en) | A kind of moulding process squeezing out rolling with powder | |
| CN102717078A (en) | Process of tungsten alloy rotary swaging rod with high density and high performance | |
| CN104493429A (en) | Strain-induced semi-solid forming process and die for magnalium mobile phone shells | |
| CN108754272A (en) | A kind of preparation method of big L/D ratio fine grain tungsten copper bar | |
| CN106475566A (en) | The manufacture method of molybdenum titanium target base | |
| CN101880807A (en) | Production process capable of improving mechanical properties of high specific gravity tungsten alloy lever | |
| CN103056369A (en) | Process for producing part by powder metallurgy | |
| CN102489513B (en) | Method for rolling tungsten copper thin plate with high tungsten content | |
| CN101462167A (en) | Rolling preparation method of molybdenum alloy light sheet green compact | |
| CN102328086B (en) | Method for preparing silver tin oxide electrical contact | |
| CN107502776A (en) | A kind of batch fabrication method of the CuCr alloys of high-compactness high uniformity | |
| CN106270541A (en) | High intensity increases the processing method that material manufactures material | |
| CN103085211A (en) | Preparation method of ultrahigh molecular-weight polyethylene film material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190122 |