CN106914623A - The method and its product of metal injection molded article surface ceramic deposition - Google Patents
The method and its product of metal injection molded article surface ceramic deposition Download PDFInfo
- Publication number
- CN106914623A CN106914623A CN201710178000.4A CN201710178000A CN106914623A CN 106914623 A CN106914623 A CN 106914623A CN 201710178000 A CN201710178000 A CN 201710178000A CN 106914623 A CN106914623 A CN 106914623A
- Authority
- CN
- China
- Prior art keywords
- green compact
- ceramic
- molded article
- injection molded
- metal injection
- 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.)
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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
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- 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
- B22F3/24—After-treatment of workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
-
- 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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
Abstract
The present invention provides a kind of method of metal injection molded article surface ceramic deposition, and it is comprised the following steps：Metal dust and binding agent are kneaded into feeding；The feeding is heated to plastifying state and is injected in the die cavity of an injection molding, shaping obtains green compact；Ceramic powders are provided, the ceramic powders are coated in the surface of the green compact；The green compact to being coated with ceramic powders carry out ungrease treatment to remove the binding agent in the green compact；And be sintered the green compact after the degreasing, obtain ceramic product.The present invention also provides the product that a kind of use above method is obtained.Compared with correlation technique, the product obtained using the above method, due to the surface of green compact coat one layer of ceramic powders, it is sintered after, ceramics and metal mutual scattering and permeating on faying face, improve the surfaces characteristic such as wearability, corrosion resistance and the flatness of MIM products.
Description
It is metal injection molded the present invention relates to one kind（Metal Injection Molding, hereinafter referred MIM）Method,
More particularly to a kind of method of the surface quality that can improve MIM products.
Background technology
MIM is a kind of novel manufacturing process technology that powder metallurgy is combined with plastic cement injection molding technique, first by gold
Category powder carries out mixing granulation with binding agent, above-mentioned mixture is had fluid ability at a certain temperature, then use is injected into
Shape technology carrys out the product of batch micro operations complex geometric shapes.Therefore, MIM is higher suitable for molding structure complexity, required precision
Metal product.However, there is surface quality using the product that general MIM methods are obtained（Such as wearability, corrosion resistance）It is not good etc.
Problem.
The content of the invention
The technical problem to be solved in the invention is to provide a kind of MIM metal systems that can improve MIM products surface qualities
The method of product surface ceramic deposition.
A kind of method of metal injection molded article surface ceramic deposition, it is comprised the following steps：
Metal dust and binding agent are kneaded into feeding；
The feeding is heated to plastifying state and is injected in the die cavity of an injection molding, shaping obtains green compact；
Ceramic powders are provided, the ceramic powders are coated in the surface of the green compact；
The green compact to being coated with ceramic powders carry out ungrease treatment to remove the binding agent in the green compact；And
Green compact after the degreasing are sintered, ceramic product is obtained.
Preferably, the ceramic powders are made to be coated in the green compact using electrostatic powder spraying method or plasma spraying method
Surface.
Preferably, before the step of coated ceramic powder, first roughening treatment is made on the surface to the green compact.
Preferably, before the step of coated ceramic powder, first blasting treatment is done on the surface to the green compact.
Preferably, the cavity surface of the injection molding is by roughening treatment, so that the surface of green compact reaches roughening effect
Really.
Preferably, the ceramic powders include one or more in zirconium oxide, aluminum oxide, carborundum and silicon nitride.
Preferably, the particle diameter of the ceramic powders is 0.5 micron to 0.8 micron.
Preferably, during sintering processes, temperature uses 1200 DEG C to 1380 DEG C, continues 2 hours to 4 hours.
The present invention also provides a kind of MIM products, and it uses the above method to be obtained.
Compared with correlation technique, the product obtained using the above method, due to coating one layer of ceramic powder on the surface of green compact
End, it is sintered after, ceramics and metal mutual scattering and permeating on faying face improve the wearability of MIM products, corrosion resistance and put down
The surfaces characteristic such as face degree.
Specific embodiment
The invention provides it is a kind of it is metal injection molded in metal surface ceramic method, it is comprised the following steps：
Metal dust and binding agent are kneaded into feeding；
The feeding is heated to plastifying state and is injected in the die cavity of an injection molding, shaping obtains green compact；
Make roughening treatment, such as sandblasting in surface to the green compact；
Ceramic powders are provided, the ceramic powders are coated in the surface of the green compact；
The green compact to being coated with ceramic powders carry out ungrease treatment to remove the binding agent in the green compact；And
Green compact after the degreasing are sintered, ceramic product is obtained.
It is appreciated that above-mentioned roughening treatment step can also be omitted, or it is roughened green surface using other techniques.
Such as, the cavity surface of injection molding is by roughening treatment, so that the surface of green compact reaches roughening effect, using this kind of method
Caused may deform when can avoid roughening green compact；Or green surface is reached roughening effect using chemical etching mode, adopt
Caused may deform when can also be avoided being roughened green compact using other modes with this kind of method.
In embodiments of the present invention, the ceramic powders are made to be coated in the table of the green compact using electrostatic powder spraying method
Face.It is appreciated that as needed ceramic powders can be made to be coated in the surface of green compact, such as plasma spraying side using other method
Method.In embodiment of the present invention, using zirconia ceramics powder, its particle diameter is 0.5 micron to 0.8 micron.It is appreciated that ceramic
Powder can also use other ceramic powders, such as include one or more in zirconium oxide, aluminum oxide, carborundum and silicon nitride.At this
In invention embodiment, during sintering processes, temperature uses 1200 DEG C to 1380 DEG C, continues 2 hours to 4 hours.It is appreciated that
Can according to demand, using other temperature and duration sintering green compact.
Present invention also offers a kind of MIM products, it uses the above method to be obtained.
Compared with correlation technique, the product obtained using the above method, due to coating one layer of ceramic powder on the surface of green compact
End, it is sintered after, ceramics and metal mutual scattering and permeating on faying face improve the wearability of MIM products, corrosion resistance and put down
The surfaces characteristic such as face degree.Green surface is coated again after being roughened, ceramic powders can be made preferably to be coated in green surface, enter
One step improves the surface quality of MIM products.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of method of metal injection molded article surface ceramic deposition, it is comprised the following steps：
Metal dust and binding agent are kneaded into feeding；
The feeding is heated to plastifying state and is injected in the die cavity of an injection molding, shaping obtains green compact；
Ceramic powders are provided, the ceramic powders are coated in the surface of the green compact；
The green compact to being coated with ceramic powders carry out ungrease treatment to remove the binding agent in the green compact；And
Green compact after the degreasing are sintered, ceramic product is obtained.
2. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that use powder
Electrostatic coating method or plasma spraying method make the ceramic powders be coated in the surface of the green compact.
3. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that made pottery in coating
Before the step of porcelain powder, first roughening treatment is made on the surface to the green compact.
4. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that made pottery in coating
Before the step of porcelain powder, first blasting treatment is done on the surface to the green compact, so that the surface of green compact reaches roughening effect.
5. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that the injection mould
The cavity surface of tool is by roughening treatment, so that the surface of green compact reaches roughening effect.
6. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that the ceramic powder
End includes one or more in zirconium oxide, aluminum oxide, carborundum and silicon nitride.
7. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that the ceramic powder
The particle diameter at end is 0.5 micron to 0.8 micron.
8. the method for metal injection molded article surface ceramic deposition according to claim 1, it is characterised in that sintering processes
When, temperature uses 1200 DEG C to 1380 DEG C, continues 2 hours to 4 hours.
9. a kind of metal injection molded article, it uses any one of claim 1-8 method to be such as obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178000.4A CN106914623A (en) | 2017-03-23 | 2017-03-23 | The method and its product of metal injection molded article surface ceramic deposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178000.4A CN106914623A (en) | 2017-03-23 | 2017-03-23 | The method and its product of metal injection molded article surface ceramic deposition |
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| CN106914623A true CN106914623A (en) | 2017-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710178000.4A Pending CN106914623A (en) | 2017-03-23 | 2017-03-23 | The method and its product of metal injection molded article surface ceramic deposition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732673A (en) * | 2019-10-14 | 2020-01-31 | 江苏精研科技股份有限公司 | method for preparing metal and ceramic composite workpiece |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5086333A (en) * | 1982-07-26 | 1992-02-04 | Sumitomo Electric Industries, Ltd. | Substrate for semiconductor apparatus having a composite material |
| US20050123433A1 (en) * | 2003-12-05 | 2005-06-09 | Qingfa Li | Production of composite materials by powder injection molding and infiltration |
| DE102004060023A1 (en) * | 2004-12-14 | 2006-07-06 | Mtu Aero Engines Gmbh | Production of honeycomb sealing segments by powder metallurgy injection molding useful for aircraft engine gas turbines and in the consumer goods, automobile |
| CN105108154A (en) * | 2015-09-21 | 2015-12-02 | 深圳艾利门特科技有限公司 | Method for preparing special-shaped complex part through powder injection molding technology |
| CN105921756A (en) * | 2016-03-28 | 2016-09-07 | 宿迁启祥电子科技有限公司 | Method for producing a molded article with insert |
-
2017
- 2017-03-23 CN CN201710178000.4A patent/CN106914623A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5086333A (en) * | 1982-07-26 | 1992-02-04 | Sumitomo Electric Industries, Ltd. | Substrate for semiconductor apparatus having a composite material |
| US20050123433A1 (en) * | 2003-12-05 | 2005-06-09 | Qingfa Li | Production of composite materials by powder injection molding and infiltration |
| DE102004060023A1 (en) * | 2004-12-14 | 2006-07-06 | Mtu Aero Engines Gmbh | Production of honeycomb sealing segments by powder metallurgy injection molding useful for aircraft engine gas turbines and in the consumer goods, automobile |
| CN105108154A (en) * | 2015-09-21 | 2015-12-02 | 深圳艾利门特科技有限公司 | Method for preparing special-shaped complex part through powder injection molding technology |
| CN105921756A (en) * | 2016-03-28 | 2016-09-07 | 宿迁启祥电子科技有限公司 | Method for producing a molded article with insert |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732673A (en) * | 2019-10-14 | 2020-01-31 | 江苏精研科技股份有限公司 | method for preparing metal and ceramic composite workpiece |
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Application publication date: 20170704 |