CN110369706A - A kind of preparation method of ceramic-metal composite material - Google Patents
A kind of preparation method of ceramic-metal composite material Download PDFInfo
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- CN110369706A CN110369706A CN201910136198.9A CN201910136198A CN110369706A CN 110369706 A CN110369706 A CN 110369706A CN 201910136198 A CN201910136198 A CN 201910136198A CN 110369706 A CN110369706 A CN 110369706A
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- injection
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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
- 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
- B22F1/108—Mixtures obtained by warm mixing
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a kind of preparation methods of ceramic-metal composite material, and its step are as follows: (1) pelletizing: 316L powder of stainless steel, black zirconia ceramics powder being kneaded with binder respectively, granulation；Obtain 316L stainless steel feeding, black zirconia ceramics feeding；(2) it forms: 316L stainless steel feeding is injection moulded, then 316L stainless steel injection base is cut out to the shapes and sizes of needs with laser cutting machine, wherein the position cut away will include cast gate；316L injection base after cutting is placed on mold, then the position completely cut away with the injection of black zirconia feeding；(3) it is sintered: ceramics and metal injection base is subjected to catalysis degreasing and sintering；(4) it polishes: sintered ceramics-to-metals joining part is subjected to grinding and buffing.Using ceramic-metal composite material prepared by the technical program be provided simultaneously with ceramics strength is high, scratch resistance is wear-resistant, thermal diffusivity is good, it is good, resistance to almost without signal shielding characteristic and metal ductility fall, easy processing the characteristics of.
Description
Technical field
The present invention relates to a kind of preparation method of composite material, specially a kind of preparation side of ceramic-metal composite material
Method.
Background technique
In modern project structural material, ceramic material have high temperature resistant, wear-resistant, corrosion-resistant, high-temerature creep is small, intensity
High, excellent performances such as hardly mask signal and thermal expansion coefficient be small, but the characteristics of due to chemical bond, brittleness is big, difficult processing,
Cold-and-heat resistent impact capacity is poor, is difficult to that complex-shaped structural member is made which results in it, limits its use scope.Metal material
With ductility is good and thermal conductivity well equal excellent performances, but its is wear-resistant, high temperature resistance is poor, it is caused not to be able to satisfy day
The performance requirement that benefit improves.One of solution to the problem is exactly that the connector of metal and ceramics is produced using interconnection technique, from
And the feature performance benefit of the two is played, the respective shortcoming of two kinds of materials is made up, this is for reducing cost, expanding ceramic use
Range has great meaning.
Currently, the connection type of ceramics and metal has very much, as diffusion welding, soldering, mechanical connection, binder connect
It connects.Wherein, mechanical connection and binder Joining Technology use condition are limited, once loaded condition is complicated, high using temperature, even
Connector will be damaged；In soldering connection, it is desirable that solder quality it is high, it is ensured that the solder used need to improve ceramic material
Wettability of the surface, in addition, ceramics and metal material mechanical property, the difference of physical property be also influence soldering it is great because
Element；Diffusion welding complex technical process is very high to connection equipment, the processing request of connection surface.Such as Chinese patent
CN102219539A discloses the reactive diffusion bonding method of a kind of ceramic composite and metal, and this method passes through in electric field
Under activation, generate combustion reaction heat, respectively by metal material and ceramic composite local melting and generate diffusion and connect
It connects, this equipment quality needed is high, and to the surface treatment of ceramic material complexity, at high cost.
Summary of the invention
The invention patent overcomes shortcoming and defect present in existing background technique, provides a kind of injection moulding mode and connects
Ceramics and metal, when injection moulding, make metal package ceramics, and metal and ceramics are shunk simultaneously when sintering, and metal produces always to ceramic
Raw squeezing action both is achieved close connection, interface is seamless and interface has the process of certain intensity.
The purpose of the present invention can be achieved through the following technical solutions.
A kind of preparation method of ceramic-metal composite material, its step are as follows:
(1) it pelletizes: 316L powder of stainless steel, black zirconia ceramics powder being kneaded with binder respectively, granulation；It obtains
316L stainless steel feeding, black zirconia ceramics feeding；
(2) form: injection+cutting+injection is to be injection moulded 316L stainless steel feeding, then by 316L stainless steel
Injection base cuts out the shapes and sizes of needs with laser cutting machine, wherein the position cut away will include cast gate；After cutting
316L injection base is placed on mold, then the position completely cut away with the injection of black zirconia feeding；
(3) ceramics and metal injection base are subjected to catalysis degreasing and sintering；
(4) sintered ceramics-to-metals joining part is subjected to grinding and buffing.
Wherein, in step (1), the binder is modeling based binder, is selected from polyformaldehyde (POM), high density polyethylene (HDPE)
(HDPE), one of ethylene-vinyl acetate copolymer (EVA), stearic acid (SA) etc..Powder loading described in it is 40-
55%.The mixing machine equipment is open-close type mixer, and mixing time 1.5-2.5h, melting temperature is 170-190 DEG C,
After material is crushed in crusher after being kneaded, the extrusion granulator in extruder.
In step (2), in the injection+cutting+injection technique, control parameter when injection are as follows: injection temperature 180-200
DEG C, injection pressure 50-160MPa, injection molding process speed be 10-150mm/s, mold temperature is 80-150 DEG C.
Alternative solution as step (2) is injection+injection technique, is first to be injection moulded 316L stainless steel feeding,
Black zirconia feeding is injected again, wherein the stainless steel blank of 316L that the black zirconia green body injected after guaranteeing first is injected
Package, material is thus formed the injection bases simultaneously with ceramics and metal and metal package ceramics.Control parameter when wherein injecting
Are as follows: 180-200 DEG C of injection temperature, injection pressure 120-160MPa, injection molding process speed are 70-150mm/s, mold temperature is
100-150℃。
In step (3), it is that catalyst carries out in nitric acid catalysis degreasing furnace that catalysis degreasing, which is using nitric acid, and skimming temp is
100-140 DEG C, leading to acid amount is 3-5g/min, and leading to the acid time is 1-4h.Sintering after catalysis is under inert gas shielding atmosphere
Vacuum drying oven in complete, hydrogen, argon gas, vacuum atmosphere can be used in sintering atmosphere, and sintering temperature is 1350-1380 DEG C, heat preservation
Time is 1.5-3h.
In step (4), burned ceramics and metal connecting piece are subjected to grinding process on Carborundum wheel, grinding wheel speed is
300-2000r/min has just obtained the ceramics-to-metals joining part with mirror effect finally in doing polishing treatment on polishing machine.
The present invention has the advantages that being provided simultaneously with ceramics strength using ceramics-to-metals joining part prepared by the technical program
It is high, scratch resistance is wear-resistant, thermal diffusivity is good, it is good, resistance to almost without signal shielding characteristic and metal ductility fall, easy processing the characteristics of.We
Method can a large amount of save the costs, realization mass production ceramics-to-metals joining part.The Product Interface of this method preparation is close, seamless
Gap, consistency are high, polishing hole is few, mirror effect is good.
Detailed description of the invention
Fig. 1 is the metallographic optical microscope picture of the hole at both ceramic-metals interface, crackle and bonding state.
Specific embodiment
Combined with specific embodiments below with the attached drawing technical characterstic that the present invention is further explained.
Embodiment 1:
Domestic 316L powder of stainless steel and binder are added in open-close type mixer by powder loading for 45.5%
It is kneaded 2h, after being crushed in Material disintegrator, is poured into extruder and is squeezed out and pelletized.Domestic black oxidation zirconium powder and bonding
Agent is added in open-close type mixer for 50% by powder loading and is kneaded 2h, and melting temperature is 190 DEG C, after the completion of material is kneaded
It is crushed in Material disintegrator, is subsequently poured into extruder and is squeezed out and pelletized.316L stainless steel feeding is first injected, when injection infuses
Penetrate 195 DEG C of temperature, injection pressure 100MPa, injection molding process speed 100mm/s, 120 DEG C of mold temperature.Then injection base is used
Laser cutting machine cuts away the cutting member comprising cast gate.The cutting member is placed on mold, then is injected with black zirconia feeding
The completely position cut away, 195 DEG C of injection temperature, injection pressure 65MPa, injection molding process speed 35mm/s, mould when injection
100 DEG C of temperature of tool.Material is thus formed the injection bases simultaneously with ceramics and metal.By injection molding ceramics-to-metals joining
Base carries out nitric acid catalyst catalysis degreasing, and skimming temp is 120 DEG C, and leading to acid amount is 4g/min, and leading to the acid time is 2h.It is sintered after catalysis
It is to be carried out in the vacuum drying oven of argon atmosphere, sintering temperature is 1370 DEG C, soaking time 2h.The sintered part of acquisition is being drawn
It is completely maximum to both holdings interface in the punch test of ceramics-to-metals joining part, is realized to stretch progress different loads on machine
Power is 850N.Burned porcelain and metal connecting piece are subjected to grinding process on Carborundum wheel, grinding wheel speed 1000r/min,
Finally in doing polishing treatment on polishing machine, the ceramics-to-metals joining part with mirror effect has just been obtained.Wherein attached drawing 1 is two
The metallographic optical microscope picture of the hole at person interface, crackle and bonding state, finds out, the two interface closely connects from picture
Connect, interface is seamless, polishing hole it is small.
Embodiment 2:
Domestic 316L powder of stainless steel and binder are added in open-close type mixer by powder loading for 46.4%
It is kneaded 2h, after being crushed in Material disintegrator, is poured into extruder and is squeezed out and pelletized.Domestic black oxidation zirconium powder and bonding
Agent is added in open-close type mixer for 50% by powder loading and is kneaded 2h, and melting temperature is 190 DEG C, after the completion of material is kneaded
It is crushed in Material disintegrator, is subsequently poured into extruder and is squeezed out and pelletized.316L stainless steel feeding is first injected, when injection infuses
Penetrate 190 DEG C of temperature, injection pressure 150MPa, injection molding process speed 120mm/s, 130 DEG C of mold temperature.Then black oxidation is used
The injection of zirconium feeding is produced at full capacity remaining position of product, 190 DEG C of injection temperature, injection pressure 120MPa, injection molding process speed 90mm/ when injection
S, 140 DEG C of mold temperature.It has thus obtained metal and has wrapped up injection that ceramic, interface has some strength and that interface is seamless
Base.Injection molding ceramics-to-metals joining base is subjected to nitric acid catalyst catalysis degreasing, skimming temp is 120 DEG C, and logical acid amount is
5g/min, leading to the acid time is 90min.Sintering is carried out in the vacuum drying oven of argon atmosphere after catalysis, and sintering temperature is
1375 DEG C, soaking time 2h.The sintered part of acquisition carries out punching press of the different loads to ceramics-to-metals joining part on stretching-machine
In test, realizing both holdings complete maximum, force in interface is 750N.By burned porcelain and metal connecting piece in Carborundum wheel
Upper carry out grinding process, grinding wheel speed 1500r/min have just obtained having mirror surface finally in doing polishing treatment on polishing machine
The ceramics-to-metals joining part of effect.
Claims (9)
1. a kind of preparation method of ceramic-metal composite material, it is characterised in that: its step are as follows:
(1) it pelletizes: 316L powder of stainless steel, black zirconia ceramics powder being kneaded with binder respectively, granulation；Obtain 316L
Stainless steel feeding, black zirconia ceramics feeding；
(2) form: injection+cutting+injection is to be injection moulded 316L stainless steel feeding, then injects 316L stainless steel
Base cuts out the shapes and sizes of needs with laser cutting machine, wherein the position cut away will include cast gate；By the 316L note after cutting
It penetrates base to be placed on mold, then the position completely cut away with the injection of black zirconia feeding；
(3) it is sintered: ceramics and metal injection base is subjected to catalysis degreasing and sintering；
(4) it polishes: sintered ceramics-to-metals joining part is subjected to grinding and buffing.
2. a kind of preparation method of ceramic-metal composite material according to claim 1, it is characterised in that: step (1)
In, the binder is modeling based binder, is selected from polyformaldehyde, high density polyethylene (HDPE), ethylene-vinyl acetate copolymer, tristearin
One of acid；The powder loading is 40-55%.
3. a kind of preparation method of ceramic-metal composite material according to claim 1, it is characterised in that: step (1)
In, the mixing machine equipment is open-close type mixer, and mixing time 1.5-2.5h, melting temperature is 170-190 DEG C, material
After being crushed in crusher after being kneaded, the extrusion granulator in extruder.
4. a kind of preparation method of ceramic-metal composite material according to claim 1, it is characterised in that: step (2)
In, in the injection+cutting+injection technique, control parameter when injection are as follows: 180-200 DEG C of injection temperature, injection pressure 50-
160MPa, injection molding process speed are 10-150mm/s, mold temperature is 80-150 DEG C.
5. a kind of preparation method of ceramic-metal composite material according to claim 1, it is characterised in that: as step
(2) alternative solution is injection+injection technique, is first to be injection moulded 316L stainless steel feeding, then inject black zirconia
Feeding, wherein the stainless steel blank package of 316L that the black zirconia green body injected after guaranteeing first is injected, thus forms
There is the injection base of ceramics and metal and metal package ceramics simultaneously.
6. a kind of preparation method of ceramic-metal composite material according to claim 5, it is characterised in that: injection time control
Parameter processed are as follows: 180-200 DEG C of injection temperature, injection pressure 120-160MPa, injection molding process speed are 70-150mm/s, mold temperature
Degree is 100-150 DEG C.
7. a kind of preparation method of ceramic-metal composite material according to claim 1, it is characterised in that: step (3)
In, it is that catalyst carries out in nitric acid catalysis degreasing furnace that catalysis degreasing, which is using nitric acid, and skimming temp is 100-140 DEG C, leads to acid
Amount is 3-5g/min, and leading to the acid time is 1-4h.
8. a kind of preparation method of ceramic-metal composite material according to claim 7, it is characterised in that: after catalysis
Sintering is completed in the vacuum drying oven under inert gas shielding atmosphere, and hydrogen, argon gas, vacuum atmosphere can be used in sintering atmosphere,
Sintering temperature is 1350-1380 DEG C, soaking time 1.5-3h.
9. a kind of preparation method of ceramic-metal composite material according to claim 1, it is characterised in that: step (4)
In, burned ceramics and metal connecting piece are subjected to grinding process on Carborundum wheel, grinding wheel speed 300-2000r/min,
Finally in doing polishing treatment on polishing machine, the ceramics-to-metals joining part with mirror effect has just been obtained.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203541A (en) * | 2020-03-06 | 2020-05-29 | 江苏精研科技股份有限公司 | 3D printing method for preparing multi-region composite material |
| CN112404434A (en) * | 2020-11-13 | 2021-02-26 | 上海富驰高科技股份有限公司 | Injection-molded Cu vapor chamber |
| CN113909473A (en) * | 2021-09-29 | 2022-01-11 | 深圳艾利佳材料科技有限公司 | Manufacturing method for manufacturing microporous part by combining MIM (metal-insulator-metal) and laser cutting |
| CN114905042A (en) * | 2022-04-08 | 2022-08-16 | 深圳市泛海统联精密制造股份有限公司 | Method for preparing porous wear-resistant product by metal injection molding process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001005542A1 (en) * | 1999-07-20 | 2001-01-25 | Southco, Inc. | Process for forming microporous metal parts |
| CN101564809A (en) * | 2009-05-20 | 2009-10-28 | 中南大学 | Preparation method of covered metal spare parts |
| CN102009175A (en) * | 2010-10-08 | 2011-04-13 | 李亚东 | Manufacturing method of multilayer shell-core composite structural part |
| CN104546226A (en) * | 2013-10-11 | 2015-04-29 | 浙江一火科技有限公司 | Artificial hip joint and manufacturing method thereof |
| CN107931614A (en) * | 2016-10-12 | 2018-04-20 | 中兴通讯股份有限公司 | Preparation method, housing and the electronic equipment of structural member |
| CN108023604A (en) * | 2016-10-27 | 2018-05-11 | 浙江火科技股份有限公司 | A kind of compound Kato of metal-ceramic for portable terminal and its manufacture method |
| CN109014211A (en) * | 2018-08-09 | 2018-12-18 | 上海富驰高科技有限公司 | A kind of inexpensive MIM manufacturing process of the high nitrogen without magnetic high strength stainless steel part |
| CN109128186A (en) * | 2018-08-31 | 2019-01-04 | 湖南英捷高科技有限责任公司 | A kind of scope mucous membrane decollement electric knife head and preparation method thereof |
| CN109180183A (en) * | 2018-11-08 | 2019-01-11 | 江苏精研科技股份有限公司 | A kind of polyformaldehyde system formulation and a kind of powder injection molding process |
-
2019
- 2019-02-25 CN CN201910136198.9A patent/CN110369706A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001005542A1 (en) * | 1999-07-20 | 2001-01-25 | Southco, Inc. | Process for forming microporous metal parts |
| CN101564809A (en) * | 2009-05-20 | 2009-10-28 | 中南大学 | Preparation method of covered metal spare parts |
| CN102009175A (en) * | 2010-10-08 | 2011-04-13 | 李亚东 | Manufacturing method of multilayer shell-core composite structural part |
| CN104546226A (en) * | 2013-10-11 | 2015-04-29 | 浙江一火科技有限公司 | Artificial hip joint and manufacturing method thereof |
| CN107931614A (en) * | 2016-10-12 | 2018-04-20 | 中兴通讯股份有限公司 | Preparation method, housing and the electronic equipment of structural member |
| CN108023604A (en) * | 2016-10-27 | 2018-05-11 | 浙江火科技股份有限公司 | A kind of compound Kato of metal-ceramic for portable terminal and its manufacture method |
| CN109014211A (en) * | 2018-08-09 | 2018-12-18 | 上海富驰高科技有限公司 | A kind of inexpensive MIM manufacturing process of the high nitrogen without magnetic high strength stainless steel part |
| CN109128186A (en) * | 2018-08-31 | 2019-01-04 | 湖南英捷高科技有限责任公司 | A kind of scope mucous membrane decollement electric knife head and preparation method thereof |
| CN109180183A (en) * | 2018-11-08 | 2019-01-11 | 江苏精研科技股份有限公司 | A kind of polyformaldehyde system formulation and a kind of powder injection molding process |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203541A (en) * | 2020-03-06 | 2020-05-29 | 江苏精研科技股份有限公司 | 3D printing method for preparing multi-region composite material |
| CN112404434A (en) * | 2020-11-13 | 2021-02-26 | 上海富驰高科技股份有限公司 | Injection-molded Cu vapor chamber |
| CN113909473A (en) * | 2021-09-29 | 2022-01-11 | 深圳艾利佳材料科技有限公司 | Manufacturing method for manufacturing microporous part by combining MIM (metal-insulator-metal) and laser cutting |
| CN114905042A (en) * | 2022-04-08 | 2022-08-16 | 深圳市泛海统联精密制造股份有限公司 | Method for preparing porous wear-resistant product by metal injection molding process |
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