CN102992778B - Precision ceramic with jade texture and preparation method thereof - Google Patents
Precision ceramic with jade texture and preparation method thereof Download PDFInfo
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- CN102992778B CN102992778B CN201210335182.9A CN201210335182A CN102992778B CN 102992778 B CN102992778 B CN 102992778B CN 201210335182 A CN201210335182 A CN 201210335182A CN 102992778 B CN102992778 B CN 102992778B
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Abstract
The invention belongs to the technical field of ceramic preparation, and particularly relates to precision ceramic with jade texture and a preparation method thereof. The precision ceramic with jade texture consists of main a raw material and an auxiliary material, wherein the main raw material is one of aluminum oxide powder, zirconium oxide powder, the mixed powder of aluminum oxide and zirconium oxide and the mixed powder of silicon oxide and aluminum oxide; the auxiliary material is one or more than two of a binder, a wetting agent and a plasticizer; the fineness of the main raw material is 0.3-1 micron; and the precision ceramic is processed and formed by the steps of mixing granulation, injection molding, degreasing biscuiting, high-temperature sintering and the like. The preparation method of the precision ceramic with jade texture provided by the invention is environment-friendly and pollution-free; the ceramic product prepared by the method has the surface texture and delicacy of jade and also can obtain the hardness and toughness superior to that of jade; and the hardness of the obtained ceramic product can reach Mohs scale 8-9, and the toughness can reach the toughness range of jadeite.
Description
Technical field
The invention belongs to ceramic making technical field, be specifically related to a kind of high technology ceramics with jade quality and preparation method thereof.
Background technology
Pottery is the general name of pottery and porcelain.Chinese have just invented pottery as far back as approximately B.C. 8000-2000 (Neolithic Age).Stupalith is oxide compound, nitride, boride and carbide etc. mostly.Common stupalith has clay, aluminum oxide, kaolin etc.Along with the progress of science and people's growth in the living standard, pottery is the requisite of people's daily life, again artistic craft product, it is that working people gathers materials on the spot take manual production as main a kind of technique making product for adapting to living needs and esthetic requirement, is nowadays more and more paid attention to by common people and like.Its uniqueness is that it is science and technology and plastic arts, decorative art three's unification, and any ceramic process works are all to be combined by the quality of stupalith, moulding, decoration three parts.
Modern Ceramics gets involved in people's life from multi-angle by variety of way, comprise home room and carry-on ornaments.In recent years, along with improving constantly of people's aesthetic conceptions, people require also more and more higher for pottery quality, moulding, decoration, the pottery that traditional technology is made has high reserve value, but in the demand that gradually can not meet Modern Decorative aspect quality, moulding and decoration.
In addition, existing ceramic process is in order to improve the performance of quality, moulding and decoration aspect of product, often on composition, must add organic shaping additive, and these organic shaping additives still will remove before pottery burns till, while removing, easily produce dusty gas, to environment, be not inconsistent the requirement of environmental protection.
Summary of the invention
For overcoming the defect of prior art, the object of the present invention is to provide a kind of making method of the high technology ceramics with jade quality, in whole technological process expellant gas, do not contain dusty gas, environmental protection; And the pottery obtaining by the method has surperficial texture and the exquisite degree of jade.
Another object of the present invention is to provide a kind of high technology ceramics with jade quality, be made by making method of the present invention, make it have outward appearance and the performance of jade.
Another object of the present invention is to provide a kind of ceramic degreasing biscuiting equipment, solves the exhaust gas emission problem in manufacturing method of ceramic.
The technical solution adopted in the present invention is as follows for achieving the above object:
A making method with the high technology ceramics of jade quality, comprises the following steps:
1) mixing granulator: main raw material and auxiliary material are added to hot milling in mixing roll, and cooling rear granulation, obtains feed particles;
2) ejection formation: by being injected in metal die after feed particles melting, cooling with Jet forming machine, obtain green compact;
3) degreasing biscuiting: green compact are put in debinding furnace, debinding furnace is provided with second heating apparatus, between second heating apparatus and debinding furnace, vacuum fan is housed, vacuum fan is also equipped with at the top of debinding furnace, green compact are degreasing in debinding furnace, the waste gas that skimming processes produces is pumped in second heating apparatus by the vacuum fan between second heating apparatus and debinding furnace, changes into carbonic acid gas and water, and discharges by the top blower fan of debinding furnace;
4) high temperature sintering: in the time that debinding furnace is cooled to 50-60 ℃, the green compact after degreasing are transferred to and carry out high temperature sintering in high temperature sintering furnace.
For the pottery that makes to obtain not only has the outward appearance of jade, and can improve hardness and the toughness of pottery; Preferably, main raw material described in above-mentioned technique is the one in the mixed powder of alumina powder, Zirconium oxide powder, aluminum oxide and zirconic mixed powder, silicon oxide and aluminum oxide; Described auxiliary material is one or more mixing in binding agent, lubricant or plasticizer; Wherein the fineness of main raw material is 0.3-1 μ m, and binding agent is the plastic grain of diameter 3-7mm, and lubricant is that fineness is 0.1-1mm fine particle, and plasticizer is liquid or cured shape or grease-like, and main raw material and auxiliary material volume fraction are:
Main raw material 50%-60%
Binding agent 30%-50%
Lubricant 0%-5%
Plasticizer 0%-10%
The volume summation of each component is 100% above.If ceramic raw material powder too slightly can cause product to be difficult to moulding in above-mentioned technique, and the product surface texture after sintering does not reach requirement, and material too carefully can cause difficult forming, the fineness that is therefore chosen in raw material can have the advantage of easy-formation and easy-sintering concurrently simultaneously at 0.3-1 micron.
Described binding agent is one or more mixing in PS, PE, PP, PEO, PEG, EVA, PVB, PMMA; Described lubricant is stearic acid or calcium stearate; Described plasticizer is the one in paraffin, DOP, DBP.
In above-mentioned technique, in order to make can to mix between main raw material and auxiliary material, further improve surperficial texture and the fineness of product, preferably, in step 1), add hot milling more than twice, the temperature of mixing roll is 100-200 ℃, and each mixing time is 4-6 hour.
In above-mentioned technique, in step 3), the temperature of degreasing biscuiting is 200-400 ℃, and the temperature in second heating apparatus is 600-1200 ℃; The time of degreasing biscuiting is controlled at 12-48 hour.In the temperature-rise period of debinding furnace, when temperature reaches 200 ℃, green compact start obvious degreasing, go out part organic gas, these organic gass are pumped in second heating apparatus and are discharged after second-heating resolves into carbonic acid gas and water again by rear vacuum fan, effectively prevent that obnoxious flavour is discharged in air.
In step 4), the temperature of high temperature sintering is 1250-1700 ℃, and the time is 10-24 hour.
In order to remove as much as possible having and auxiliary material in product, improve the hardness of product, the manufacturing method of ceramic with jade quality of the present invention is also included in step 2) and step 3) between the step of chemical degreasing: in the time that ejection formation is cooled to 50-65 ℃, soaks and within 1-15 hour, slough part tackiness agent with organic solvent.The solvent adopting is the conventional solvent in this area, as normal hexane, dimethylbenzene etc.
In order to obtain the ceramic product of different pattern, meet different needs, the manufacturing method of ceramic with jade quality of the present invention is also included in the glazing step between step 3) and step 4): to colorant on green compact cooling after degreasing biscuiting, or/and glaze, the green compact after glazing carry out high temperature sintering again.
Have a high technology ceramics for jade quality, it is to be made by the above-mentioned making method of the present invention.
A kind of ceramic degreasing biscuiting equipment, it comprises debinding furnace, and debinding furnace is provided with second heating apparatus, between second heating apparatus and debinding furnace, vacuum fan is housed, vacuum fan is also equipped with at the top of second heating apparatus, and it also comprises the temperature control unit being connected with second heating apparatus respectively at debinding furnace.
Compared to existing technology, beneficial effect of the present invention is: the making method environmental protection of the high technology ceramics with jade quality of the present invention, pollution-free, and the pottery obtaining by the method not only has surperficial texture and the exquisite degree of jade, and can also improve hardness and the toughness of ceramic product, the hardness of the ceramic product obtaining can reach Mohs 8-9 degree, and toughness can reach the toughness scope of jadeite.The pottery with jade quality of the present invention, has outward appearance and the performance of jade.
Below in conjunction with accompanying drawing and concrete embodiment, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the schema of making method of the present invention;
Fig. 2 is the structural representation of ceramic degreasing biscuiting equipment of the present invention.
Embodiment
It is below the preferred embodiment of the invention.
Have a high technology ceramics for jade quality, wherein main raw material used is alumina powder, and fineness is 0.5-1 μ m; Binding agent is PS and the PE composite grain of particle diameter 3-7mm, PS and mixing that PE is 1:1 according to volume ratio; Lubricant stearic acid is that fineness is the fine particle of 0.1-1mm, and the volume fraction of each component is:
Alumina powder 50%
Binding agent 40%
Stearic acid 10%
Preparation in accordance with the following methods: by alumina powder, binding agent, stearic acid adds hot milling in mixing roll, cooling rear granulation, obtain feed particles, to after feed particles melting, be injected in metal die with Jet forming machine, cooling, obtain green compact, green compact are put in debinding furnace, debinding furnace is provided with second heating apparatus, vacuum fan is all equipped with between second heating apparatus and debinding furnace and the top of debinding furnace, green compact are degreasing in debinding furnace, the waste gas that skimming processes produces is pumped into and in second heating apparatus, is changed into carbonic acid gas and water and discharge by the top blower fan of debinding furnace by the vacuum fan between second heating apparatus and debinding furnace, in the time that debinding furnace is cooled to 50-60 ℃, the green compact after degreasing are transferred to and in high temperature sintering furnace, carry out high temperature sintering.The ceramic product quality fineness finally obtaining, hardness is that Mohs 8 is spent.
A kind of high technology ceramics with jade quality, wherein main raw material used is Zirconium oxide powder, fineness is 0.3-0.8 μ m, binding agent is that particle diameter is PS and the PMMA composite grain of 3-7mm, PS and PMMA are that volume ratio is 1:1, lubricant stearic acid is that fineness is the fine particulate of 0.1-1mm, and plasticizer DOP is aqueous, and the volume ratio of each component is:
Zirconium oxide powder 53%
Binding agent 40%
DOP 5%
Wherein in Zirconium oxide powder, contain the yttrium oxide of 2.5-3.0mol%, preparation in accordance with the following methods: by Zirconium oxide powder, binding agent, stearic acid, DOP adds hot milling in mixing roll, cooling rear granulation, obtain feed particles, to after feed particles melting, be injected in metal die with Jet forming machine, cooling, obtain green compact, green compact are put in debinding furnace, debinding furnace is provided with second heating apparatus, vacuum fan is all equipped with between second heating apparatus and debinding furnace and the top of debinding furnace, green compact are degreasing in debinding furnace, the waste gas that skimming processes produces is pumped into and in second heating apparatus, is changed into carbonic acid gas and water and discharge by the top blower fan of debinding furnace by the vacuum fan between second heating apparatus and debinding furnace, in the time that debinding furnace is cooled to 50-60 ℃, the green compact after degreasing are transferred to and in high temperature sintering furnace, carry out high temperature sintering.The ceramic product quality fineness finally obtaining, hardness is that Mohs 8 is spent.
A kind of high technology ceramics with jade quality, wherein main raw material used is aluminum oxide and zirconic mixed powder, fineness is 0.3-1 μ m, binding agent is PP and the PMMA composite grain of particle diameter 3-7mm, PP and PMMA volume ratio are 1:1, lubricant stearic acid is that fineness is 0.1-1mm fine particle, and plasticizer DBP is liquid, and the volume ratio of each component is:
Aluminum oxide and zirconic mixed powder 60%
Binding agent 30%
Stearic acid 0%
DBP 10%
In aluminum oxide and zirconic mixed powder, the massfraction of aluminum oxide is 10-30%, preparation in accordance with the following methods: by aluminum oxide and zirconic mixed powder, binding agent, stearic acid, DBP adds hot milling in mixing roll, cooling rear granulation, obtain feed particles, to after feed particles melting, be injected in metal die with Jet forming machine, while being cooled to 50 ℃, soak and within 6-8 hour, slough part tackiness agent with dimethylbenzene, again green compact are put in debinding furnace afterwards, debinding furnace is provided with second heating apparatus, vacuum fan is all equipped with between second heating apparatus and debinding furnace and the top of debinding furnace, green compact are degreasing in debinding furnace, the waste gas that skimming processes produces is pumped into and in second heating apparatus, is changed into carbonic acid gas and water and discharge by the top blower fan of debinding furnace by the vacuum fan between second heating apparatus and debinding furnace, in the time that debinding furnace is cooled to 50-60 ℃, the green compact after degreasing are transferred to and in high temperature sintering furnace, carry out high temperature sintering.The ceramic product quality fineness finally obtaining, hardness is that Mohs 9 is spent.
A kind of high technology ceramics with jade quality, wherein main raw material used is silicon oxide and aluminum oxide mixed powder, fineness is 0.3-1 μ m, binding agent is that particle diameter is the PS of 3-7mm and the composite grain of EVA, PS and EVA volume ratio are 1:1, lubricant stearic acid is that fineness is the fine particulate of 0.1-1mm, and plasticizer paraffin is solid shape, and the volume ratio of each component is:
Silicon oxide and aluminum oxide mixed powder 55%
Binding agent 30%
Stearic acid 5%
Paraffin 10%;
In described silicon oxide and aluminum oxide mixed powder, the massfraction of silicon oxide is 30-70%, preparation in accordance with the following methods: by silicon oxide and aluminum oxide mixed powder, binding agent, stearic acid, paraffin adds hot milling in mixing roll, cooling rear granulation, obtain feed particles, to after feed particles melting, be injected in metal die with Jet forming machine, cooling 65 ℃ time, soak and within 1-2 hour, slough part tackiness agent with normal hexane, again green compact are put in debinding furnace afterwards, debinding furnace is provided with second heating apparatus, vacuum fan is all equipped with between second heating apparatus and debinding furnace and the top of debinding furnace, green compact are degreasing in debinding furnace, the waste gas that skimming processes produces is pumped into and in second heating apparatus, is changed into carbonic acid gas and water and discharge by the top blower fan of debinding furnace by the vacuum fan between second heating apparatus and debinding furnace, in the time that debinding furnace is cooled to 50-60 ℃, the green compact after degreasing are transferred to and in high temperature sintering furnace, carry out high temperature sintering.The ceramic product quality fineness finally obtaining, hardness is that Mohs 9 is spent.
As shown in Figure 2, ceramic degreasing biscuiting equipment of the present invention, it comprises debinding furnace 1, debinding furnace 1 is provided with second heating apparatus 2, between second heating apparatus 2 and debinding furnace 1, vacuum fan 3 is housed, vacuum fan 4 is also equipped with at the top of second heating apparatus 2, and it also comprises the temperature control unit (not shown) being connected with second heating apparatus 2 respectively at debinding furnace 1.
Above-mentioned embodiment is only the preferred embodiment of the present invention; can not limit the scope of protection of the invention with this, the variation of any unsubstantiality that those skilled in the art does on basis of the present invention and replacement all belong to the present invention's scope required for protection.
Claims (7)
1. there is a making method for the high technology ceramics of jade quality, it is characterized in that comprising the following steps:
1) mixing granulator: main raw material and auxiliary material are added to hot milling in mixing roll, and cooling rear granulation, obtains feed particles;
2) ejection formation: by being injected in metal die after feed particles melting, cooling with Jet forming machine, obtain green compact;
3) degreasing biscuiting: green compact are put in debinding furnace, debinding furnace is provided with second heating apparatus, between second heating apparatus and debinding furnace, vacuum fan is housed, vacuum fan is also equipped with at the top of debinding furnace, green compact are degreasing in debinding furnace, the waste gas that skimming processes produces is pumped into second heating apparatus by the vacuum fan between second heating apparatus and debinding furnace, changes into carbonic acid gas and water, and discharges by the top blower fan of debinding furnace; Wherein, the temperature of degreasing biscuiting is 200-400 ℃, and the temperature in second heating apparatus is 600-1200 ℃; The time of degreasing biscuiting is controlled at 12-48 hour;
4) high temperature sintering: in the time that debinding furnace is cooled to 50-60 ℃, the green compact after degreasing are transferred to and carry out high temperature sintering in high temperature sintering furnace;
Described main raw material is the one in the mixed powder of alumina powder, Zirconium oxide powder, aluminum oxide and zirconic mixed powder, silicon oxide and aluminum oxide; Described auxiliary material is one or more mixing in binding agent, lubricant or plasticizer; Wherein the fineness of main raw material is 0.3-1 μ m, and binding agent is the plastic grain of diameter 3-7mm, and lubricant is that fineness is 0.1-1mm fine particle, and plasticizer is liquid or cured shape or grease-like, and main raw material and auxiliary material volume fraction are:
Main raw material 50%-60%
Binding agent 30%-50%
Lubricant 0%-5%
Plasticizer 0%-10%
The volume summation of each component is 100% above.
2. the making method of the high technology ceramics with jade quality according to claim 1, is characterized in that: described binding agent is one or more mixing in PS, PE, PP, PEO, PEG, EVA, PVB, PMMA; Described lubricant is stearic acid; Described plasticizer is the one in paraffin, DOP, DBP.
3. the making method of the high technology ceramics with jade quality according to claim 1, is characterized in that: in step 1), add hot milling more than twice, the temperature of mixing roll is 100-200 ℃, and each mixing time is 4-6 hour.
4. the making method of the high technology ceramics with jade quality according to claim 1, is characterized in that: in step 4), the temperature of high temperature sintering is 1250-1700 ℃, and the time is 1-2 hour.
5. the making method of the high technology ceramics with jade quality according to claim 1, it is characterized in that it is also included in step 2) and step 3) between the step of chemical degreasing: in the time that ejection formation is cooled to below 50 ℃, soaks and within 1-8 hour, slough part tackiness agent with organic solvent.
6. the making method of the high technology ceramics with jade quality according to claim 1, it is characterized in that it is also included in the glazing step between step 3) and step 4): or/and glaze, the green compact after glazing carry out high temperature sintering again to colorant on green compact cooling after degreasing biscuiting.
7. a high technology ceramics with jade quality, is characterized in that: it is to adopt any making method of claim 1-6 to be made.
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Families Citing this family (9)
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| CN103351163A (en) * | 2013-06-17 | 2013-10-16 | 戴洪斌 | Ornament based on glaze-color special ceramics and making method |
| CN104230391A (en) * | 2014-07-11 | 2014-12-24 | 廖文宏 | Colored drawing process of precise ceramic ornaments |
| CN104261820B (en) * | 2014-09-01 | 2016-04-06 | 河北智康通信技术有限公司 | Ceramic lock pin based on zirconium oxide and production technique thereof |
| CN104671810A (en) * | 2015-02-10 | 2015-06-03 | 东北大学 | Compact aluminum-magnesium-calcium fire-resistant clinker and preparation method thereof |
| CN104961449B (en) * | 2015-07-01 | 2017-03-22 | 中国地质大学（武汉） | Semitransparent jadeite ceramic and preparation method thereof |
| CN105198389A (en) * | 2015-10-13 | 2015-12-30 | 中联重科股份有限公司 | Composition for alumina ceramics, alumina ceramics and preparation method of alumina ceramics |
| CN106626010A (en) * | 2016-12-23 | 2017-05-10 | 湖南旺龙科技有限公司 | Injection molding method for fine ceramic |
| CN109704730B (en) * | 2019-03-07 | 2024-01-02 | 昆山卡德姆新材料科技有限公司 | Ceramic ornament with double-color jade texture and preparation method thereof |
| CN113388344B (en) * | 2021-06-08 | 2022-11-15 | 佛山市三水区康立泰无机合成材料有限公司 | Dry-particle glaze glue and preparation method thereof |
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| CN101875560A (en) * | 2010-03-31 | 2010-11-03 | 李锦桥 | Ceramic dumping environment-protection kiln |
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| CN1412148A (en) * | 2002-12-06 | 2003-04-23 | 王国梁 | Transparent alumina ceramic product and its production method |
| CN101913878B (en) * | 2010-07-19 | 2012-06-27 | 北京科技大学 | Method for preparing silicon carbide particle-reinforced silicon nitride composite ceramic parts |
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