CN103922755A - Material and process for 3D printing ceramic part - Google Patents
Material and process for 3D printing ceramic part Download PDFInfo
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- CN103922755A CN103922755A CN201410100454.6A CN201410100454A CN103922755A CN 103922755 A CN103922755 A CN 103922755A CN 201410100454 A CN201410100454 A CN 201410100454A CN 103922755 A CN103922755 A CN 103922755A
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Abstract
The present invention relates to a material for a 3D printing ceramic part. The material comprises a low temperature binder, a medium temperature binder and ceramic powder, wherein the lower temperature binder, the medium temperature binder and the ceramic powder are pre-made into particles. In the prior art, rough blank produced through 3D printing requires low temperature binder evaporation during a sintering process. According to the present invention, the overflow evaporation seam is provided for the low temperature binder in the existing technology adopting the non-granulated printing material through formation of the loose structure with particles, and particularly the large particles and the small particles form the support structure when the particles with different particles are adopted, such that overflow of the low temperature binder easily overflows, and the residual low temperature binder in the one-time sintering part is less; and during high temperature sintering, with the solid phase reaction, the ceramic powder fuses so as to fill the space of the evaporation seam, and the volume of the finally obtained ceramic part can be slightly reduced compared with the volume of the rough blank, such that the ceramic part has characteristics of compact structure and high hardness.
Description
Technical field
The present invention relates to a kind of ceramic part manufacturing technology, be specifically related to 3D and print ceramic part material therefor and technique.
Background technology
The method of preparing ceramic part in prior art is mainly first by ceramic powder and binding agent hybrid modulation form slurry according to a certain percentage, again slurry is injected to particular mold moulding and obtain crude green body, utilize and obtain ceramic part as the whole bag of tricks such as laser, high temperature carry out solid state sintering by crude green body afterwards.The method need to be made mould according to the specific design of part on the one hand, is not suitable for small serial production, and cost of labor and material cost that the mould of making complicated shape need to be a large amount of, and the part shape of making is also subject to larger restriction.Moreover because mould structure and design of part are one-to-one relationship, in the part rear mold that completes, just no longer possess use value, so just produce and be difficult in a large number the die waste that reuses.
On the other hand, inner owing to most of binding agent being enclosed in to pottery in the process of solid state sintering, cause ceramic part to contain more impurity, thereby affect the integral hardness of ceramic part.
Summary of the invention
The present invention is directed to and in prior art, make mould inefficiency, ceramic part after solid state sintering contains more polymictic problem, propose a kind of 3D of utilization printing technique and form ceramic crude green body, and by adding the ceramic powder that granularity is different, the 3D that makes it to be formed for the evaporation space that binding agent overflows in first sintering prints ceramic part material therefor and technique.
Technical scheme of the present invention is as follows:
A kind of 3D prints ceramic part material therefor, it is characterized in that: comprise low temperature bonding agent, middle temperature binding agent and ceramics powder, wherein said low temperature bonding agent, middle temperature binding agent and ceramics powder are prefabricated into particle, and the size range of described particle is at φ 0.5～φ 3.0mm.
The macrobead that comprises volume particle size of described particle and the small-particle of small grain size, described macrobead and short grained ratio are 15/65～25/55.
Described ratio is 20/60.
Described oarse-grained granularity is 150～300 orders, and short grained granularity is 400～600 orders.
The volume ratio of described ceramics powder and low temperature bonding agent is 40/60～60/40, and mass ratio is 75/25～90/10.
The volume ratio of described ceramics powder and low temperature bonding agent is 50/50, and mass ratio is 80/20.
Described low temperature bonding agent is suitable fusing point plastics, and described middle temperature binding agent is inorganic silicate.
The 3D that uses above-mentioned 3D to print ceramic part material therefor prints a ceramic part technique, and its step comprises:
1) preparation comprises the particle of the printed material of low temperature bonding agent, middle temperature binding agent and ceramics powder;
2) use the 3D printing device based on heat of solution lamination method that described printed material is made to crude green body;
3) described crude green body is carried out to intermediate sintering temperature, by the evaporation space forming between described particle, the low temperature bonding agent in evaporation crude green body, obtains once sintered;
4) to described once sintered, carry out high temperature sintering, obtain ceramic part.
The temperature of described intermediate sintering temperature is 500～600 ℃.
The temperature of described high temperature sintering is 1650～1680 ℃.
Technique effect of the present invention is as follows:
3D of the present invention prints ceramic part material therefor and comprises low temperature bonding agent, middle temperature binding agent and ceramics powder, and wherein low temperature bonding agent, middle temperature binding agent and ceramics powder are prefabricated into particle.Because the crude green body of printing generation through 3D is in sintering process; low temperature bonding agent need to be evaporated; and with respect to using not by the prior art of granular printed material, the short texture that the present invention consists of particle, for low temperature bonding agent provides the evaporation of overflowing gap.Particularly, when using the different particle of granularity, size particles forms supporting structure, and the distillation that is more conducive to low temperature bonding agent is overflowed, and makes low temperature bonding agent residual in once sintered still less.And when high temperature sintering, solid state reaction merges ceramics powder and made up the space of evaporating gap, although the volume of the ceramic part finally obtaining can slightly reduce than crude green body, this makes the finer and close compactness of structure of ceramic part, and hardness is higher.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described.
3D prints and first by computer aided design (CAD) (CAD), sets up software three-dimensional model, then divides the three-dimensional model building up into cross section successively, thereby instructs printing device successively to print.The present invention utilizes the 3D printing device based on heat of solution lamination method, using the ceramics powder that is mixed with according to a certain percentage binding agent as printed material, realizes the space multistory geometric shape of the part crude green body consistent with three-dimensional model by the mode of successively printing.By intermediate sintering temperature, make the degreasing of part crude green body obtain once sintered, by once sintered, carry out high temperature sintering afterwards, finally obtain ceramic part.Its concrete steps comprise:
1) preparation printed material:
Printed material of the present invention comprises low temperature bonding agent, middle temperature binding agent and ceramics powder, wherein low temperature bonding agent can be the material that polyethylene wax etc. can be emulsification 100 ℃ of left and right, the material that middle temperature binding agent is inorganic silicate etc. can be melting 500 ℃ of left and right.Because the content of middle temperature binding agent is less, and be present in the part that final sintering obtains, therefore only calculate the proportioning of low temperature bonding agent and ceramics powder, the volume ratio of ceramics powder and low temperature bonding agent is 40/60～60/40, and mass ratio is 75/25～90/10; The volume ratio of preferably ceramic powder of the present invention and low temperature bonding agent is 50/50, mass ratio is 80/20, and for example the volume when ceramics powder accounts for 50% of cumulative volume, and the volume of low temperature bonding agent accounts for 50%, the quality of ceramics powder accounts for 80% of total mass, and the quality of low temperature bonding agent accounts for 20%.
Because low temperature bonding agent is different from the proportion of ceramics powder, for fear of mixed printed material, long-time, place rear or produce in transit segregation, the present invention is prefabricated into particle by printed material.For different demands, the particle of printed material can be same particle sizes or different grain size.
2) carry out 3D printing:
Printed material is inserted in the feed box of 3D printing device, at printing device, read in after the cross-sectional image of three-dimensional part model, at syringe needle place, printed material heating is made to low temperature bonding agent emulsification, afterwards liquid printed material is inserted to the solid section of cross-sectional image, make it moulding standing a moment.According to each cross-sectional image, repeat this step, successively print and pile up, finally obtain the part crude green body consistent with three-dimensional model.
3) intermediate sintering temperature:
This step is, at the temperature of 500 ℃ of left and right, part crude green body is carried out to sintering, low temperature bonding agent is overflowed realize once sintered of degreasing, simultaneously in warm binding agent melting continue to maintain the solid shape of ceramics powder, preferably 600 ℃ of sintering temperatures.In order to reduce the residual integral hardness that is unlikely to affect part of low temperature bonding agent, the present invention is prefabricated into printed material the particle that granularity is different in step 1), make it to form the evaporation gap of microcosmic when sintering, low temperature bonding agent can be evaporated gap by these and be spilt in extraneous space.In order to realize this purpose, the macrobead granularity of printed material is 150～300 orders, and small-particle granularity is 400～600 orders, and macrobead and short grained ratio are 15/65～25/55.
4) high temperature sintering:
This step is to once sintered of intermediate sintering temperature, to carry out sintering at the temperature of 1670 ℃ of left and right, by solid state reaction, obtains high-density, high-precision ceramic part.
The volume of supposing crude green body is V1, and the volume of ceramic part is V2, and it has following relation:
The above embodiment can make the invention of those skilled in the art's comprehend, but does not limit the present invention in any way creation.Therefore; although this specification sheets has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can modify or be equal to replacement the invention; in a word, all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (10)
1. a 3D prints ceramic part material therefor, it is characterized in that: comprise low temperature bonding agent, middle temperature binding agent and ceramics powder, wherein said low temperature bonding agent, middle temperature binding agent and ceramics powder are prefabricated into particle, and the size range of described particle is at φ 0.5～φ 3.0mm.
2. a kind of 3D as claimed in claim 1 prints ceramic part material therefor, it is characterized in that: the macrobead that comprises volume particle size of described particle and the small-particle of small grain size, described macrobead and short grained ratio are 15/65～25/55.
3. a kind of 3D as claimed in claim 2 prints ceramic part material therefor, it is characterized in that: described ratio is 20/60.
4. a kind of 3D as claimed in claim 2 prints ceramic part material therefor, it is characterized in that: described oarse-grained granularity is 150～300 orders, and short grained granularity is 400～600 orders.
5. a kind of 3D as claimed in claim 1 or 2 or 3 or 4 prints ceramic part material therefor, it is characterized in that: the volume ratio of described ceramics powder and low temperature bonding agent is 40/60～60/40, and mass ratio is 75/25～90/10.
6. a kind of 3D as claimed in claim 5 prints ceramic part material therefor, it is characterized in that: the volume ratio of described ceramics powder and low temperature bonding agent is 50/50, and mass ratio is 80/20.
7. a kind of 3D as claimed in claim 1 or 2 or 3 or 4 prints ceramic part material therefor, it is characterized in that: described low temperature bonding agent is suitable fusing point plastics, and described middle temperature binding agent is inorganic silicate.
8. the 3D of use as described in one of claim 1-7 prints a 3D printing ceramic part technique for ceramic part material therefor, and its step comprises:
1) preparation comprises the particle of the printed material of low temperature bonding agent, middle temperature binding agent and ceramics powder;
2) use the 3D printing device based on heat of solution lamination method that described printed material is made to crude green body;
3) described crude green body is carried out to intermediate sintering temperature, by the evaporation space forming between described particle, the low temperature bonding agent in evaporation crude green body, obtains once sintered;
4) to described once sintered, carry out high temperature sintering, obtain ceramic part.
9. a kind of 3D as claimed in claim 8 prints ceramic part technique, it is characterized in that: the temperature of described intermediate sintering temperature is 500～600 ℃.
10. a kind of 3D as claimed in claim 8 prints ceramic part technique, it is characterized in that: the temperature of described high temperature sintering is 1650～1680 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410100454.6A CN103922755B (en) | 2014-03-18 | 2014-03-18 | 3D prints ceramic part material therefor and technique |
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| CN201410100454.6A CN103922755B (en) | 2014-03-18 | 2014-03-18 | 3D prints ceramic part material therefor and technique |
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| CN103922755A true CN103922755A (en) | 2014-07-16 |
| CN103922755B CN103922755B (en) | 2016-01-13 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658917A (en) * | 2014-12-24 | 2015-05-27 | 中南大学 | Preparation method of metal matrix composite electronic packaging device containing high-volume-fraction SiC |
| GB2502295B (en) * | 2012-05-22 | 2015-12-09 | Mcor Technologies Ltd | Colour 3-dimensional printing with 3D gamut mapping |
| CN105254309A (en) * | 2015-09-24 | 2016-01-20 | 佛山华智新材料有限公司 | Ceramic 3D printing method |
| CN105895311A (en) * | 2016-06-27 | 2016-08-24 | 杨林娣 | Transformer |
| CN105958355A (en) * | 2016-06-29 | 2016-09-21 | 杨云泉 | Box-type transformer substation |
| CN105977837A (en) * | 2016-06-29 | 2016-09-28 | 杨云泉 | Box-type substation having multiple heat radiation modes |
| CN106608726A (en) * | 2015-10-26 | 2017-05-03 | 优克材料科技股份有限公司 | Three-dimensional printing method and three-dimensional printing powder |
| CN107129285A (en) * | 2016-02-26 | 2017-09-05 | 加我科技股份有限公司 | Ceramic powders with high intensity and the method that biscuit is made using it |
| CN107686341A (en) * | 2017-08-22 | 2018-02-13 | 北京航空航天大学 | A kind of ceramic product and preparation method thereof |
| CN108290321A (en) * | 2015-10-08 | 2018-07-17 | 麻省理工学院 | Carrier-substrate adhesive systems |
| CN110366465A (en) * | 2017-02-28 | 2019-10-22 | 精工爱普生株式会社 | Three-D moulding object manufacture composition, the manufacturing method of three-D moulding object and three-dimensional modeling material producing device |
| CN113754448A (en) * | 2021-08-26 | 2021-12-07 | 共享智能装备有限公司 | Ceramic powder for additive manufacturing, preparation method and baking method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106903775A (en) * | 2017-01-17 | 2017-06-30 | 华南理工大学 | A kind of many shower nozzle Collaborative Control ceramic powders 3D forming methods |
Citations (1)
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|---|---|---|---|---|
| US8568649B1 (en) * | 2007-03-20 | 2013-10-29 | Bowling Green State University | Three-dimensional printer, ceramic article and method of manufacture |
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2014
- 2014-03-18 CN CN201410100454.6A patent/CN103922755B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8568649B1 (en) * | 2007-03-20 | 2013-10-29 | Bowling Green State University | Three-dimensional printer, ceramic article and method of manufacture |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2502295B (en) * | 2012-05-22 | 2015-12-09 | Mcor Technologies Ltd | Colour 3-dimensional printing with 3D gamut mapping |
| CN104658917B (en) * | 2014-12-24 | 2017-03-29 | 中南大学 | A kind of preparation method of the metal-based compound electronics packaging part containing high-volume fractional SiC |
| CN104658917A (en) * | 2014-12-24 | 2015-05-27 | 中南大学 | Preparation method of metal matrix composite electronic packaging device containing high-volume-fraction SiC |
| CN105254309B (en) * | 2015-09-24 | 2017-11-14 | 佛山华智新材料有限公司 | A kind of 3D printing ceramic process |
| CN105254309A (en) * | 2015-09-24 | 2016-01-20 | 佛山华智新材料有限公司 | Ceramic 3D printing method |
| CN108290321A (en) * | 2015-10-08 | 2018-07-17 | 麻省理工学院 | Carrier-substrate adhesive systems |
| CN106608726A (en) * | 2015-10-26 | 2017-05-03 | 优克材料科技股份有限公司 | Three-dimensional printing method and three-dimensional printing powder |
| CN107129285A (en) * | 2016-02-26 | 2017-09-05 | 加我科技股份有限公司 | Ceramic powders with high intensity and the method that biscuit is made using it |
| CN105895311A (en) * | 2016-06-27 | 2016-08-24 | 杨林娣 | Transformer |
| CN105958355A (en) * | 2016-06-29 | 2016-09-21 | 杨云泉 | Box-type transformer substation |
| CN105977837A (en) * | 2016-06-29 | 2016-09-28 | 杨云泉 | Box-type substation having multiple heat radiation modes |
| CN105977837B (en) * | 2016-06-29 | 2018-08-07 | 保定市柯必达电气设备制造有限公司 | A kind of box-type substation with multiple radiating mode |
| CN110366465A (en) * | 2017-02-28 | 2019-10-22 | 精工爱普生株式会社 | Three-D moulding object manufacture composition, the manufacturing method of three-D moulding object and three-dimensional modeling material producing device |
| CN107686341A (en) * | 2017-08-22 | 2018-02-13 | 北京航空航天大学 | A kind of ceramic product and preparation method thereof |
| CN113754448A (en) * | 2021-08-26 | 2021-12-07 | 共享智能装备有限公司 | Ceramic powder for additive manufacturing, preparation method and baking method |
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| CN103922755B (en) | 2016-01-13 |
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