CN104107145A - One-time sintered metal ceramic tooth powder and application thereof in ceramic teeth - Google Patents
One-time sintered metal ceramic tooth powder and application thereof in ceramic teeth Download PDFInfo
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- CN104107145A CN104107145A CN201410325055.XA CN201410325055A CN104107145A CN 104107145 A CN104107145 A CN 104107145A CN 201410325055 A CN201410325055 A CN 201410325055A CN 104107145 A CN104107145 A CN 104107145A
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- porcelain
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- ceramic tooth
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Abstract
The invention discloses one-time sintered metal ceramic tooth powder and application thereof in ceramic teeth. The powder includes ceramic powder and enamel powder, wherein the ceramic powder comprises SiO2, Al2O3, Na2CO3, K2CO3, CaCO3, B2O3, BaCO4, ZrO2, Li2O and SnO2; and the enamel powder comprisesSiO2, Al2O3, Na2CO3, K2CO3, CaCO3, B2O3, ZrO2 and SnO2. The application comprises the following steps: separately preparing the ceramic powder and enamel powder into slurry, sequentially and uniformly coating the slurry on dentin porcelain of the metal inner crown surface, and drying to obtain rough blanks of the ceramic teeth; and performing one-time sintering on the rough blanks of the ceramic teeth, thus obtaining the one-time sintered metal ceramic teeth. The components and granularities of the ceramic powder and enamel powder are adjusted, so that the sintering shrinkages of the ceramic powder and enamel powder are consistent, the size of a sintered blank can be predicted according to the coating size, and the workload of regrinding is reduced. Moreover, the interfacial strength is high, the phenomena of fracture and exfoliation are avoided in the one-time sintering process, and the yield is greatly improved.
Description
Technical field
The present invention relates to a kind of disposable sintering metal baking-ceramic tooth powder and the application in baking-ceramic tooth thereof; Belong to ceramic materials preparation technology field.
Background technology
Metal-porcelain is current clinical used recovery technique of oral cavity the most widely.Its renovation technique generally includes following several step.First the first step prepares substrate crown, and second step applies and hides color porcelain sintering, and the 3rd step coated body porcelain carries out sintering, finally applies transparent porcelain (vitreous enamel) and carries out sintering, machines finished product finally by crossing.The technique of this heat-agglomerating repeatedly has two shortcomings, and the firstth, the enamel coating of heterogeneity due to the inconsistent generation interfacial stress of thermal coefficient of expansion, easily produces and collapses porcelain in the process of heat-agglomerating repeatedly in the time that interfacial stress is excessive.Second shortcoming is that the technique of this sintering repeatedly can cause process cycle to lengthen, thereby energy consumption increase causes cost to increase.Therefore, in the urgent need to porcelain powder and the powdered frit of development of new, reduce sintering number clinically, reduce and collapse the probability that porcelain produces, reduce costs.There is at present research add transition tack coat, surface treatment by employing or regulate the method for thermal coefficient of expansion to reduce the report of interfacial stress, increasing strong interfacial bond.If number of patent application is 200410077669.7,200810044838.5,200910023927.6,200810044837.0,201010536556.4,201210497508.8 etc.But repeatedly, the basic technological problems of sintering does not still solve repeatedly.On the contrary part technique due to surface treatment or add transition tack coat cause operation increase.
Powder co-sintering is the class sintering method in powder metallurgy science.Refer to dissimilar powder to combine by modes such as compacting, coextrusion or common injection mouldings, then combined and obtain the technology of product by once sintered method.The present invention plan co-sintering technique be incorporated into gear division porcelain powder design and preparation in the middle of, body porcelain powder and the powdered frit of development of new.Can obtain needed structure by primary coating sintering, fundamentally change the technique of coating, sintering repeatedly, thereby reduce the cost that Metal-porcelain is repaired.Research about co-sintering material is more, and ZL201110194115.5, ZL200910043468.8 have reported the technique of carbide alloy and iron co-sintering.In addition had paper studies M4 and Fe-2Ni; M2 and T15,316L-0.5B and Fe-2Ni-0.5B; In718/In625,3Y-TZP/430L; Al
2o
3/ ZrO
2; Coarse grain WC-Co/ fine grain WC-Co, 316L/17-4PH rustless steel; Ti/Al
3the co-sintering of the material systems such as Ti.Although these researchs have provided the co-sintering technique of some materials and goods.But the co-sintering for gear division porcelain powder and this oxidase complex powder being made up of many oxide of glaze is not also studied at present.The development approach of co-sintering product is generally trial-and-error method, removes to change the sintering behavior of material by changing different sintering process parameters and powder stock characteristic, thereby matches with other end material, obtains acceptable mechanical property.Because this method is emphasized last mechanical property, for the not too large restriction of contraction of two ends material.In this way and be not suitable for developing porcelain powder and the powdered frit of the present invention's design.Cause being unable to estimate coating thickness because shrink poor inconsistent meeting, porcelain powder has to separate sintering to obtain needed structure with powdered frit.Centre also needs again to polish, apply sintering again.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of interface bond strength is high, sintering shrinkage is consistent disposable sintering metal baking-ceramic tooth powder and the application in baking-ceramic tooth thereof are provided.
The disposable sintering metal baking-ceramic tooth of the present invention powder, described powder is divided into porcelain powder and powdered frit; Described porcelain powder comprises following component by percentage to the quality:
SiO
255-60%, Al
2o
33-4%, Na
2cO
35-7%, K
2cO
32-4%, CaCO
34-6%, B
2o
34-6%, BaCO
47-10%, ZrO
21-3%, Li
2o4-6%, SnO
21-3%, each component sum is 100%; In described porcelain powder, granularity≤5um accounts for the more than 95% of gross mass;
Described powdered frit comprises following component by percentage to the quality:
SiO
260-70%, Al
2o
34-6%, Na
2cO
33-6%, K
2cO
38-12%, CaCO
37-10%, B
2o
31-3%, ZrO
21-2%, SnO
21-3%, each component sum is 100%;
In described powdered frit, granularity≤5um accounts for the more than 95% of gross mass.
The disposable sintering metal baking-ceramic tooth of the present invention powder, under identical sintering condition, described porcelain powder is 0.98-1.02:1 with the ratio of the sintering shrinkage speed of powdered frit.
The disposable sintering metal baking-ceramic tooth of the present invention powder, the fineness ratio of described porcelain powder and powdered frit is 1:50-50:1.
The application of the disposable sintering metal baking-ceramic tooth of the present invention powder in baking-ceramic tooth, is characterized in that:
Porcelain powder and powdered frit are made respectively to slurry, first porcelain powder slurry is evenly coated in metal and is preced with on surperficial screening color porcelain, after being dried, form porcelain bisque; Then, powdered frit slurry is coated on porcelain bisque, dry, obtain roasting tooth crude green body; To bake tooth crude green body and in air atmosphere, be heated to 800-1200 DEG C; Insulation 0.2-2 hour, obtains disposable sintering metal baking-ceramic tooth.
In the application of the disposable sintering metal baking-ceramic tooth of the present invention powder in baking-ceramic tooth, described porcelain powder comprises following component by percentage to the quality:
SiO
255-60%, Al
2o
33-4%, Na
2cO
35-7%, K
2cO
32-4%, CaCO
34-6%, B
2o
34-6%, BaCO
47-10%, ZrO
21-3%, Li
2o4-6%, SnO
21-3%, each component sum is 100%; In described porcelain powder, granularity≤5um accounts for the more than 95% of gross mass;
Described powdered frit comprises following component by percentage to the quality:
SiO
260-70%, Al
2o
34-6%, Na
2cO
33-6%, K
2cO
38-12%, CaCO
37-10%, B
2o
31-3%, ZrO
21-2%, SnO
21-3%, each component sum is 100%; In described powdered frit, granularity≤5um accounts for the more than 95% of gross mass.
In the application of the disposable sintering metal baking-ceramic tooth of the present invention powder in baking-ceramic tooth, in disposable sintering metal baking-ceramic tooth, the bending strength of enamel coating is 90-105Mpa; The bending strength of glaze layer is 80-95Mpa.
In the application of the disposable sintering metal baking-ceramic tooth of the present invention powder in baking-ceramic tooth, in disposable sintering metal baking-ceramic tooth, the Thickness Ratio of enamel coating and glaze layer is 0.1-10:1.
In the application of the disposable sintering metal baking-ceramic tooth of the present invention powder in baking-ceramic tooth, in described metal, hat is selected from the one in CoCr alloy, NiCr alloy, Ti, and described screening color porcelain is selected from one or more in Cs2O, manganese sulfate, titanium oxide, nickel oxide, ferrum oxide.
In the application of the disposable sintering metal baking-ceramic tooth of the present invention powder in baking-ceramic tooth, the fineness ratio of described porcelain powder and glaze is 1:50-50:1.
Principle and advantage
The present invention adopts porcelain powder and the glaze that interface bond strength is high, sintering shrinkage is consistent, by first applying the mode that applies powdered frit after porcelain powder, in being coated on, porcelain powder, powdered frit label, by once sintered, obtained finished product, this has solved in prior art, especially prepares the repeatedly technique of coating sintering of needs that metal-porcelain process exists, greatly shorten the preparation time of metal-porcelain, reduced production cost and energy consumption.
The present invention is by porcelain powder, the composition of powdered frit and the adjusting of granularity, and the effect that its coordinative role produces is to obtain sintering shrinkage consistent porcelain powder and powdered frit, and interface bond strength is high; Consistent due to sintering shrinkage, can be from applying the size of size prediction sintered body, and this reduces the workload of polishing again, and the consistent of sintering shrinkage is also to realize the once sintered precondition that just obtains desired structure simultaneously; Because interface bond strength is high, make to avoid cracking and collapsed the appearance of porcelain phenomenon in disposable sintering process, greatly improve yield rate.
Detailed description of the invention
In the embodiment of the present invention, the bond strength of enamel coating and glaze layer adopts following method to measure:
By porcelain powder and powdered frit, to obtain half be full porcelain powder in compacting under 50-100Mpa pressure, after half is the sample of full powdered frit, carry out 0.2-2 hour sintering at 800-1200 DEG C, obtaining structure is the test specimen of enamel coating/interface binder course/glaze layer, then to the detection that stretches of the test specimen of gained, the fracture that extension test produces is positioned at enamel coating or glaze layer, think in metal-porcelain prepared by the embodiment of the present invention, the bond strength of the interface binder course of enamel coating and glaze layer is greater than the intensity of glaze layer or enamel coating body, meets the demands.
The sintering shrinkage of porcelain powder and powdered frit adopts thermal dilatometer to detect.
Embodiment 1
Select porcelain powder component to be by percentage to the quality:
SiO
260%, Al
2o
34%, Na
2cO
37%, K
2cO
34%, CaCO
36%, B
2o
34%, BaCO
47%, ZrO
21%, Li
2o4%, SnO
23%; In described porcelain powder, granularity≤5um accounts for 96% of gross mass;
Select powdered frit component to be by percentage to the quality:
SiO
270％，Al
2O
34％，Na
2CO
33％，K
2CO
38％，CaCO
37％，B
2O
33％，ZrO
22％，SnO
23％；
In described powdered frit, granularity≤5um accounts for 96% of gross mass.
Porcelain powder and powdered frit are made respectively to slurry, first porcelain powder slurry is evenly coated in metal and is preced with on surperficial screening color porcelain, after being dried, form porcelain bisque; Then, powdered frit slurry is coated on porcelain bisque, dry, obtain roasting tooth crude green body; To bake tooth crude green body and in air atmosphere, be heated to 850 DEG C; Be incubated 2 hours, obtain disposable sintering metal baking-ceramic tooth, the metal-porcelain of preparation is without spring porcelain, cracking, bulge phenomenon.
In the present embodiment, the Thickness Ratio that porcelain powder and powdered frit apply is 0.2:1; Porcelain powder is 0.98:1 with the ratio of the sintering shrinkage of powdered frit; It is full porcelain powder that porcelain powder and powdered frit compacting are obtained to half, after half is the sample of full powdered frit, carry out tension test, the fracture that extension test produces is positioned at enamel coating, illustrate in metal-porcelain prepared by the embodiment of the present invention, the bond strength of the interface binder course of enamel coating and glaze layer is greater than the intensity of enamel coating body, meets the demands.
Embodiment 2
Select porcelain powder component to be by percentage to the quality:
SiO
255%, Al
2o
33%, Na
2cO
35%, K
2cO
33%, CaCO
36%, B
2o
36%, BaCO
410%, ZrO
23%, Li
2o6%, SnO
23%; In described porcelain powder, granularity≤5um accounts for 95% of gross mass;
Select powdered frit component to be by percentage to the quality:
SiO
260％，Al
2O
36％，Na
2CO
36％，K
2CO
312％，CaCO
310％，B
2O
33％，ZrO
22％，SnO
21％；
In described powdered frit, granularity≤5um accounts for 96% of gross mass.
Porcelain powder and powdered frit are made respectively to slurry, first porcelain powder slurry is evenly coated in metal and is preced with on surperficial screening color porcelain, after being dried, form porcelain bisque; Then, powdered frit slurry is coated on porcelain bisque, dry, obtain roasting tooth crude green body; To bake tooth crude green body and in air atmosphere, be heated to 1200 DEG C; Be incubated 0.2 hour, obtain disposable sintering metal baking-ceramic tooth, the metal-porcelain of preparation is without spring porcelain, cracking, bulge phenomenon.
In the present embodiment, the Thickness Ratio that porcelain powder and powdered frit apply is 10:1; Porcelain powder is 0.98:1 with the ratio of the sintering shrinkage of powdered frit; It is full porcelain powder that porcelain powder and powdered frit compacting are obtained to half, after half is the sample of full powdered frit, carry out tension test, the fracture that extension test produces is positioned at glaze layer, illustrate in metal-porcelain prepared by the embodiment of the present invention, the bond strength of the interface binder course of enamel coating and glaze layer is greater than the intensity of glaze layer body, meets the demands.
Embodiment 3
Select porcelain powder component to be by percentage to the quality:
SiO
258.6%, Al
2o
33.5%, Na
2cO
36.8%, K
2cO
33.2%, CaCO
35.2%, B
2o
34.6%, BaCO
49.4%, ZrO
22.1%, Li
2o4.5%, SnO
22.1%; In described porcelain powder, granularity≤5um accounts for 96% of gross mass;
Select powdered frit component to be by percentage to the quality:
SiO
265.6％，Al
2O
34.5％，Na
2CO
35.2％，K
2CO
310.3％，CaCO
39.1％，B
2O
31.8％，ZrO
21.6％，SnO
21.9％；
In described powdered frit, granularity≤5um accounts for 95% of gross mass.
Porcelain powder and powdered frit are made respectively to slurry, first porcelain powder slurry is evenly coated in metal and is preced with on surperficial screening color porcelain, after being dried, form porcelain bisque; Then, powdered frit slurry is coated on porcelain bisque, dry, obtain roasting tooth crude green body; To bake tooth crude green body and in air atmosphere, be heated to 1000 DEG C; Be incubated 1 hour, obtain disposable sintering metal baking-ceramic tooth, the metal-porcelain of preparation is without spring porcelain, cracking, bulge phenomenon.
In the present embodiment, the Thickness Ratio that porcelain powder and powdered frit apply is 5:1; Porcelain powder is 0.98:1 with the ratio of the sintering shrinkage of powdered frit; It is full porcelain powder that porcelain powder and powdered frit compacting are obtained to half, after half is the sample of full powdered frit, carry out tension test, the fracture that extension test produces is positioned at glaze layer, illustrate in metal-porcelain prepared by the embodiment of the present invention, the bond strength of the interface binder course of enamel coating and glaze layer is greater than the intensity of glaze layer body, meets the demands.
The above design parameter is only part example of the present invention, therefore can not limit practical range of the present invention with this, the equivalence of doing according to the present patent application the scope of the claims and description changes and modifies, and all should still belong to the scope that patent of the present invention contains.
Claims (8)
1. disposable sintering metal baking-ceramic tooth powder, described powder is divided into porcelain powder and powdered frit; Described porcelain powder comprises following component by percentage to the quality:
SiO
255-60%, Al
2o
33-4%, Na
2cO
35-7%, K
2cO
32-4%, CaCO
34-6%, B
2o
34-6%, BaCO
47-10%, ZrO
21-3%, Li
2o4-6%, SnO
21-3%, each component sum is 100%; In described porcelain powder, granularity≤5um accounts for the more than 95% of gross mass;
Described powdered frit comprises following component by percentage to the quality:
SiO
260-70%, Al
2o
34-6%, Na
2cO
33-6%, K
2cO
38-12%, CaCO
37-10%, B
2o
31-3%, ZrO
21-2%, SnO
21-3%, each component sum is 100%; In described powdered frit, granularity≤5um accounts for the more than 95% of gross mass.
2. the disposable sintering metal baking-ceramic tooth of one according to claim 1 powder, is characterized in that:
Under identical sintering condition, described porcelain powder is 0.98-1.02:1 with the ratio of the sintering shrinkage speed of powdered frit.
3. the disposable sintering metal baking-ceramic tooth of one according to claim 1 powder, is characterized in that: the fineness ratio of described porcelain powder and powdered frit is 1:50-50:1.
4. the application of disposable sintering metal baking-ceramic tooth powder in baking-ceramic tooth, is characterized in that:
Porcelain powder and powdered frit are made respectively to slurry, first porcelain powder slurry is evenly coated in metal and is preced with on surperficial screening color porcelain, after being dried, form porcelain bisque; Then, powdered frit slurry is coated on porcelain bisque, dry, obtain roasting tooth crude green body; To bake tooth crude green body and in air atmosphere, be heated to 800-1200 DEG C; Insulation 0.2-2 hour, obtains disposable sintering metal baking-ceramic tooth.
5. the application of disposable sintering metal baking-ceramic tooth powder according to claim 4 in baking-ceramic tooth, is characterized in that:
Described porcelain powder comprises following component by percentage to the quality:
SiO
255-60%, Al
2o
33-4%, Na
2cO
35-7%, K
2cO
32-4%, CaCO
34-6%, B
2o
34-6%, BaCO
47-10%, ZrO
21-3%, Li
2o4-6%, SnO
21-3%, each component sum is 100%; In described porcelain powder, granularity≤5um accounts for the more than 95% of gross mass;
Described powdered frit comprises following component by percentage to the quality:
SiO
260-70%, Al
2o
34-6%, Na
2cO
33-6%, K
2cO
38-12%, CaCO
37-10%, B
2o
31-3%, ZrO
21-2%, SnO
21-3%, each component sum is 100%; In described powdered frit, granularity≤5um accounts for the more than 95% of gross mass.
6. the application of disposable sintering metal baking-ceramic tooth powder according to claim 5 in baking-ceramic tooth, is characterized in that: in disposable sintering metal baking-ceramic tooth, the Thickness Ratio of enamel coating and glaze layer is 0.1-10:1.
7. the application of disposable sintering metal baking-ceramic tooth powder according to claim 4 in baking-ceramic tooth, it is characterized in that: in described metal, hat is selected from the one in CoCr alloy, NiCr alloy, Ti, and described screening color porcelain is selected from one or more in Cs2O, manganese sulfate, titanium oxide, nickel oxide, ferrum oxide.
8. the application of disposable sintering metal baking-ceramic tooth powder according to claim 4 in baking-ceramic tooth, is characterized in that: the fineness ratio of described porcelain powder and powdered frit is 1:50-50:1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325055.XA CN104107145A (en) | 2014-07-09 | 2014-07-09 | One-time sintered metal ceramic tooth powder and application thereof in ceramic teeth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325055.XA CN104107145A (en) | 2014-07-09 | 2014-07-09 | One-time sintered metal ceramic tooth powder and application thereof in ceramic teeth |
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| CN104107145A true CN104107145A (en) | 2014-10-22 |
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|---|---|---|---|
| CN201410325055.XA Pending CN104107145A (en) | 2014-07-09 | 2014-07-09 | One-time sintered metal ceramic tooth powder and application thereof in ceramic teeth |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963143A (en) * | 2016-07-01 | 2016-09-28 | 赵艳丽 | Porcelain tooth material and preparation method thereof |
| CN106237378A (en) * | 2016-08-05 | 2016-12-21 | 四川北极光口腔医疗器械有限公司 | A kind of preparation method planting use baking-ceramic tooth |
| CN110040963A (en) * | 2019-03-29 | 2019-07-23 | 合肥卓越义齿制作有限公司 | A kind of precious metal stove enamel tooth ivory white glaze and its application method |
| CN110079802A (en) * | 2019-03-26 | 2019-08-02 | 合肥卓越义齿制作有限公司 | A kind of method of porcelain yield rate on raising metal-porcelain |
| CN110093605A (en) * | 2019-03-26 | 2019-08-06 | 合肥卓越义齿制作有限公司 | Baking-ceramic tooth hides color porcelain in a kind of two-step method |
| CN110584815A (en) * | 2019-09-30 | 2019-12-20 | 西安康泰利华牙科技术有限公司 | Preparation method of metal porcelain tooth |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963143A (en) * | 2016-07-01 | 2016-09-28 | 赵艳丽 | Porcelain tooth material and preparation method thereof |
| CN106237378A (en) * | 2016-08-05 | 2016-12-21 | 四川北极光口腔医疗器械有限公司 | A kind of preparation method planting use baking-ceramic tooth |
| CN110079802A (en) * | 2019-03-26 | 2019-08-02 | 合肥卓越义齿制作有限公司 | A kind of method of porcelain yield rate on raising metal-porcelain |
| CN110093605A (en) * | 2019-03-26 | 2019-08-06 | 合肥卓越义齿制作有限公司 | Baking-ceramic tooth hides color porcelain in a kind of two-step method |
| CN110040963A (en) * | 2019-03-29 | 2019-07-23 | 合肥卓越义齿制作有限公司 | A kind of precious metal stove enamel tooth ivory white glaze and its application method |
| CN110584815A (en) * | 2019-09-30 | 2019-12-20 | 西安康泰利华牙科技术有限公司 | Preparation method of metal porcelain tooth |
| CN110584815B (en) * | 2019-09-30 | 2022-04-01 | 西安康泰健牙科技术有限公司 | Preparation method of metal porcelain tooth |
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