CN102756110B - Titanium surface casting modification method for reinforcing titanium-porcelain combination strength - Google Patents
Titanium surface casting modification method for reinforcing titanium-porcelain combination strength Download PDFInfo
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- CN102756110B CN102756110B CN201210241238.4A CN201210241238A CN102756110B CN 102756110 B CN102756110 B CN 102756110B CN 201210241238 A CN201210241238 A CN 201210241238A CN 102756110 B CN102756110 B CN 102756110B
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- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 83
- 239000010936 titanium Substances 0.000 title claims abstract description 77
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 69
- 238000005266 casting Methods 0.000 title claims abstract description 34
- 238000002715 modification method Methods 0.000 title abstract 2
- 230000003014 reinforcing effect Effects 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000000843 powder Substances 0.000 claims abstract description 35
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 17
- 239000004568 cement Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 14
- 239000000084 colloidal system Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 5
- 210000000214 mouth Anatomy 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000002269 spontaneous effect Effects 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims description 2
- 230000005496 eutectics Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 239000012153 distilled water Substances 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000423 chromium oxide Inorganic materials 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 abstract 1
- 210000004268 dentin Anatomy 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 25
- 238000003756 stirring Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000004506 ultrasonic cleaning Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000013001 point bending Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000007788 roughening Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019580 granularity Nutrition 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- Dental Preparations (AREA)
Abstract
The invention discloses a titanium surface casting modification method for reinforcing titanium-porcelain combination strength and belongs to the technical field of titanium-porcelain metal-porcelain. The method comprises the steps of: selecting one or a plurality of silicon dioxide, aluminum oxide, chromium oxide, low-smelting bonding porcelain powder, high-smelting bonding porcelain powder, screen color porcelain powder and dentin porcelain as basic ingredients of an internal embedding material; regulating the internal embedding material to gel substance through ethyl orthosilicate acidified by hydrochloric acid, or calcium aluminate cement and distilled water and water; wetting a casting wax pattern through amiable fog, coating the internal embedding material on the side to be fused with porcelain, and curing the internal embedding material at room temperature; embedding the internal embedding material through a titanium casting; and commonly casting the internal embedding material. The method disclosed by the invention forms an oxidization shield when the titanium porcelain is formed and the reaction gradient mixed layer and the glass phase in the porcelain powder form chemical combination to improve the titanium-porcelain combination strength.
Description
Technical field
The invention belongs to titanium porcelain Metal-porcelain technical field, relate to the preparation method of interior embedded material and the preparation method of the middle mixed layer of titanium-porcelain reaction of the casting modification of titanium surface, to strengthen the bond strength of titanium-porcelain, promote the application of titanium-porcelain Metal-porcelain at clinical oral.
Background technology
Titanium and alloy thereof have light weight, good biocompatibility and biological safety and receive much attention far below the price of noble metal, have been widely used in base, joint prosthesis and the body of mouth cavity planting body, fixing, removable denture reparation, complete denture strap etc. at present.But oral cavity titanium prosthesis particularly fixes the application of titanium porcelain dummy and be but subject to certain restrictions, this is because the chemical property of titanium is more active, and oxygen is had to high affinity, and under normal temperature, titanium surface will generate thick
oxide-film and titanium substrate combine closely, under the molten enclosure temperature of porcelain, that titanium surface easily forms is loose porous, adhere to poor oxide-film, affects the bond strength of titanium-porcelain.So, improve the bond strength of titanium-porcelain and just must suitably process the surface of titanium, to improve the combination of titanium-porcelain, the application of universal titanium-porcelain dummy in clinical oral repair.
Titanium surface treatment method mainly contains surface roughening processing, titanium chemical surface treatment and titanium face coat technology at present.The processing of titanium surface roughening can increase titanium surface roughness, improves titanium-porcelain bonded area; Titanium chemical surface treatment can be removed titanium surface contamination, but no matter is that surface roughening is processed or chemical treatment all can not improve in porcelain process, and titanium surface formed the problem of thick oxide film.The isolated titanium of titanium face coat (intermediate layer) contacts with oxygen, controls titanium surface over oxidation, thereby improves titanium-porcelain bond strength.The method of preparing intermediate layer is different, has ion beam depositing method, differential arc oxidation, Implantation, magnetron sputtering, sol-gel etc.The material of coating is also different, just like Au, and the elemental metals of Cr etc.; Just like SiO
2, SnO
2deng oxide; Also has TiN, the nitride such as ZrSiN.Introducing now the bond strength of titanium-porcelain behind intermediate layer increases, but can't reach the level of traditional gold-porcelain completely, reason may be that titanium-porcelain interface is double-decker, be positioned at the titanyl solid solution layer on nearly titanium surface and near pottery containing oxygen disilicide layer, these two conversion zones, especially the existence of the titanyl solid solution layer of fragility is to cause the low main cause of titanium-porcelain bond strength, i.e. the combination problem of coating and titanium matrix.
Titanium-porcelain that the present invention is prepared by casting method has overcome domestic and international intermediate layer complex manufacturing technology and coating in conjunction with intermediate layer and has been combined poor problem with titanium matrix.A kind of cast titanium and various metals and nonmetal reaction and the preparation method of combination are provided, have realized the good combination of titanium and porcelain powder.
Summary of the invention
The present invention seeks to the chemical property active for titanium, oxygen is had to high affinity, under the molten enclosure temperature of porcelain, that titanium surface easily forms is loose porous, adhere to poor oxide-film, affect the problem of the combination of titanium porcelain, providing a kind of makes to cast interior embedded material by casting method and reacts the method that forms gradient mixed layer with the titanium of molten condition, realize the combination of metal oxide and nonmetal oxide and titanium, oxidation barrier while forming titanium porcelain, and make the glassy phase in reaction gradient mixed layer and porcelain powder form chemical bond, improve the bond strength of titanium-porcelain.
For achieving the above object, the technical solution used in the present invention is as follows.
A method of casting modification to strengthen the titanium surface of titanium-porcelain bond strength, is characterized in that, specifically comprises the following steps:
(1) first select silica, chromium oxide, aluminium oxide, eutectic bonding porcelain powder, high fusible knot porcelain powder, hide one or more bases as interior embedded material in look porcelain powder and body porcelain;
(2) by the interior embedded material of step (1) with mix through the ethyl orthosilicate of hydrochloric acid (35%HCl) acidifying, furnishing colloid substance, ethyl orthosilicate acidifying adopts hydrochloric acid and the distilled water aqueous hydrochloric acid solution that 1:1 is mixed to get by volume that mass concentration is 35% to carry out acidifying, and the volume ratio of aqueous hydrochloric acid solution and ethyl orthosilicate is 1:10;
Or the interior embedded material of step (1) is mixed to furnishing colloid substance with aluminous cement and distillation water;
Or the interior embedded material of step (1) is mixed to furnishing colloid substance with distillation water.(3) utilize affine mist to soak casting wax pattern, a side of porcelain to apply the interior embedded material that one deck step (2) has been in harmonious proportion wax pattern, coating layer thickness is 0.2-1.0mm, room temperature spontaneous curing;
(4) adopt titanium casting investment material for oral cavity to carry out embedding to casting wax pattern.
(5) carry out routine casting.
In above-mentioned steps (1) is preferred, the basis of embedded material is for containing SiO
2deng material.
Above-mentioned steps (2) preferably adopts the ethyl orthosilicate furnishing colloid substance through hydrochloric acid (HCl) acidifying.
Titanium specialty embedded material in the preferred application number 201010205467.1 of above-mentioned steps (4) China and foreign countries' embedded material, its raw material weight consists of: ZrO
2powder 40-90 part, Al
20
3powder 10-50 part, metal zirconium powder 1-10 part or metallic titanium powder 1-20 part, aluminous cement 10-50 part, Li
2cO
30.01-1 part; Adopt the high efficiency water reducing agent aqueous solution that mass percent is 1%-5% to be in harmonious proportion evenly, the weight ratio of powder and the high efficiency water reducing agent aqueous solution is 100:15-25.
The technical characteristic of the inventive method is mainly:
(1) utilize the method for casting to titanium modifying surface; hot conditions while utilizing titanium casting, oxygen-free environment (being herein the casting method of dentistry routine); within when casting, the basis of embedded material react with the titanium of molten condition, the oxidation in the time that the surperficial formation of casting titanium not only can be protected titanium at porcelain but also can form the chemically combined intermediate layer of reacting with porcelain porcelain powder glassy phase.As reacting with titanium in the time casting, the interior embedded material taking silica as basis generates Ti
5si
3and SiO
2, Ti
5si
3protected titanium surface, shielding titanium in the time of porcelain with the contacting of oxygen, and SiO
2with the glassy phase of porcelain powder be close compatible, can form chemical bond.Oxygen-free environment while utilizing in theory chemical activity at high temperature of titanium and casting, it is feasible that itself and interior embedded material are reacted, intermediate layer mixed layer comprises that the material of new formation is or/and the composition in interior embedded material.
(2) overcome now both at home and abroad the intermediate layer of preparation and be combined the problem such as poor with titanium matrix, the problem such as the crisp loose oxide-film of titanium surface formation matter while having solved porcelain.
(3), while preparing the basis of interior embedded material, according to titanium fusing point and reaction principle, each composition is different from the different middle mixed layers that obtain of strong reaction degree of titanium, as SiO
2when content is high, strong reaction, reaction mixed layer is thicker; ZrO
2content when high, a little less than reaction, reaction mixed layer is thinner.
(4), while adopting titanium casting investment material for oral cavity to carry out embedding to casting wax pattern, the embedded material of employing is shown in that number of patent application is 201010205467.1.
Brief description of the drawings
Fig. 1 is the cast body pattern of observing under embodiment 1 SEM;
Fig. 2 is the XRD analysis on embodiment 1 cast titanium top layer;
Fig. 3 is the cast body pattern of observing under embodiment 2 SEM;
Fig. 4 is the XRD analysis on embodiment 2 cast titanium top layers;
Fig. 5 is the cast body pattern of observing under embodiment 3 SEM;
Fig. 6 is the XRD analysis on embodiment 3 cast titanium top layers.
Specific implementation method
Following examples have further been explained the present invention, but the present invention is not limited to following examples.
Embodiment 1
Get SiO
25g, it is for subsequent use that grinding is placed in porcelain cup; 35% hydrochloric acid and distilled water are injected to same beaker with the volume ratio of 1:1, mix, inject ethyl orthosilicate in another beaker, the hcl acidifying water through mixing and the volume ratio of ethyl orthosilicate are 1:10 simultaneously, again hcl acidifying water is slowly splashed in ethyl orthosilicate beaker, fully stir.Ethyl orthosilicate through stirring and acidifying water mixed liquor constantly add SiO in the situation that stirring
2powder (SiO
2the amount of powder is 3.9-4 times of ethyl orthosilicate quality), after all adding, then continue to stir 10-15 minute, make SiO
2powder and mixed liquor are able to abundant mediation.Will porcelain one side through the wax pattern of affine mist processing by being in harmonious proportion that the interior embedded material that is applicable to is coated in, room temperature spontaneous curing, carries out embedding to casting wax pattern with titanium specialty embedded material in application number 201010205467.1, under oxygen free condition, routine casting.
Fig. 1 is the cast body pattern of observing under SEM; Fig. 2 is the XRD analysis on cast titanium top layer, in result demonstration reaction mixed layer, is mainly Ti
5si
3, SiO
2and Ti.
Press porcelain in ISO9693 porcelain standard through the titanium sample of ultrasonic cleaning, go up respectively bonding porcelain, screening look porcelain, body porcelain, porcelain thickness is layered as 0.2mm, 0.2mm, 0.6mm, sintering in ceramic pressing furnace.On universal testing machine, do three point bending test test titanium-porcelain bond strength by ISO9693 standard, test result is got mean, in table 1.
Embodiment 2
Get SiO
2the Al of powder and 2 μ m granularities
2o
3the each 2.5g of powder adds in ball grinder, grinds 5 minutes to two kinds powder and fully mixes; 35% hydrochloric acid and distilled water are injected to same beaker with the volume ratio of 1:1, mix, inject aluminous cement in another beaker, the hcl acidifying water through mixing and the ratio of aluminous cement are 1:1 simultaneously, again hcl acidifying water is slowly splashed in aluminous cement, fully stir.Aluminous cement through stirring and acidifying water mixed liquor constantly add the SiO having mixed in the situation that stirring
2powder and Al
2o
3powder mixed powder, after all adding, then continues to stir 10-15 minute, makes powder and mixed liquor be able to abundant mediation.Will porcelain one side through the wax pattern of affine mist processing by being in harmonious proportion that the interior embedded material that is applicable to is coated in, room temperature spontaneous curing, carries out embedding to casting wax pattern with titanium specialty embedded material in application number 201010205467.1, under oxygen free condition, routine casting.
Fig. 3 is the cast body pattern of observing under SEM; Fig. 4 is the XRD analysis of cast titanium, in result demonstration reaction mixed layer, is mainly Al
2o
3, SiO
2, Ti
5si
3and Ti.
Press porcelain in ISO9693 porcelain standard through the titanium sample of ultrasonic cleaning, go up respectively bonding porcelain, screening look porcelain, body porcelain, porcelain thickness is layered as 0.2mm, 0.2mm, 0.6mm, sintering in ceramic pressing furnace.On universal testing machine, do three point bending test test titanium-porcelain bond strength by ISO9693 standard, test result is got mean, in table 1.
Embodiment 3
Get SiO
2powder and ZrO
2the each 2.5g of powder, adds in ball grinder and grinds 5-10 minute, to grinding evenly; 35% hydrochloric acid and distilled water are injected to same beaker with the volume ratio of 1:1, mix, inject ethyl orthosilicate in another beaker, the hcl acidifying water through mixing and the volume ratio of ethyl orthosilicate are 1:10 simultaneously, hcl acidifying water is slowly splashed in ethyl orthosilicate beaker, fully stir.Ethyl orthosilicate through stirring and acidifying water mixed liquor constantly add the SiO through mixing in the situation that stirring
2powder and ZrO
2powder, after all adding, then continues to stir 10-15 minute, makes powder and mixed liquor be able to abundant mediation.Will porcelain one side through the wax pattern of affine mist processing by being in harmonious proportion that the interior embedded material that is applicable to is coated in, room temperature is dried naturally, carries out embedding with titanium specialty embedded material in application number 201010205467.1 to casting wax pattern, under oxygen free condition, routine casting.
Fig. 5 is the cast body pattern of observing under SEM; Fig. 6 is the XRD analysis of cast titanium after ultrasonic cleaning, acid soak are processed 1 minute, and result shows that reaction mixed layer product is mainly Ti
5si
3, SiO
2and Ti.
Press porcelain in ISO9693 porcelain standard through the titanium sample of ultrasonic cleaning, go up respectively bonding porcelain, screening look porcelain, body porcelain, porcelain thickness is layered as 0.2mm, 0.2mm, 0.6mm, sintering in ceramic pressing furnace.On universal testing machine, do three point bending test test titanium-porcelain bond strength by ISO9693 standard, test result is got mean, in table 1.
Titanium and the porcelain powder bond strength parameter of table 1 embodiment 1-3 after the interior embedded material modification of preparation
Claims (1)
1. to strengthen a titanium surface casting method of modifying for titanium-porcelain bond strength, it is characterized in that, specifically comprise the following steps:
(1) first select silica, aluminium oxide, eutectic bonding porcelain powder, high fusible knot porcelain powder, hide several bases as interior embedded material in look porcelain powder and body porcelain, embedded material is for containing SiO
2material;
(2) the interior embedded material of step (1) is mixed with the ethyl orthosilicate through hcl acidifying, furnishing colloid substance, ethyl orthosilicate acidifying adopts hydrochloric acid and the water aqueous hydrochloric acid solution that 1:1 is mixed to get by volume that mass concentration is 35% to carry out acidifying, and the volume ratio of aqueous hydrochloric acid solution and ethyl orthosilicate is 1:10;
Or the interior embedded material of step (1) is mixed to furnishing colloid substance with aluminous cement and distillation water;
Or the interior embedded material of step (1) is mixed to furnishing colloid substance with distillation water;
(3) utilize affine mist to soak casting wax pattern inside, porcelain one side to apply the interior embedded material that one deck step (2) has been in harmonious proportion wax pattern, coating layer thickness is 0.2-1.0mm, room temperature spontaneous curing;
(4) adopt titanium casting investment material for oral cavity to carry out embedding to casting wax pattern;
(5) carry out routine casting;
In step (4), embedded material is: its raw material weight consists of: ZrO
2powder 40-90 part, Al
20
3powder 10-50 part, metal zirconium powder 1-10 part or metallic titanium powder 1-20 part, aluminous cement 10-50 part, Li
2cO
30.01-1 part; Adopt the high efficiency water reducing agent aqueous solution that mass percent is 1%-5% to be in harmonious proportion evenly, the weight ratio of powder and the high efficiency water reducing agent aqueous solution is 100:15-25.
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| CN103172344A (en) * | 2013-04-09 | 2013-06-26 | 江西恒大高新技术股份有限公司 | Heat-resisting compact inorganic hole sealing agent coating |
| JP6894759B2 (en) * | 2017-05-17 | 2021-06-30 | 株式会社松風 | Dental Phosphate-based investment material |
| CN114533318A (en) * | 2022-01-11 | 2022-05-27 | 洛阳北苑新材料技术有限公司 | Porcelain baking method for baking porcelain powder on metal crown |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061365A (en) * | 1990-11-08 | 1992-05-27 | 陈启星 | The mold air retaining wall produces the method for foundry goods coating or infiltration layer |
| CN101849888A (en) * | 2010-06-22 | 2010-10-06 | 首都医科大学附属北京口腔医院 | Titanium casting investment material for oral cavity and application method thereof |
| CN101991468A (en) * | 2010-11-09 | 2011-03-30 | 镇江恒生涓恩医疗器械有限公司 | Method for forming high-strength porcelain on surface of titanium-based material |
| CN102181816A (en) * | 2011-03-23 | 2011-09-14 | 西安交通大学 | Method for increasing bonding strength of titanium or titanium alloy ceramic restoration |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020018851A1 (en) * | 2000-06-21 | 2002-02-14 | Edward Chang | Manufacturing method for surgical implants having a layer of bioactive ceramic coating |
-
2012
- 2012-07-11 CN CN201210241238.4A patent/CN102756110B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061365A (en) * | 1990-11-08 | 1992-05-27 | 陈启星 | The mold air retaining wall produces the method for foundry goods coating or infiltration layer |
| CN101849888A (en) * | 2010-06-22 | 2010-10-06 | 首都医科大学附属北京口腔医院 | Titanium casting investment material for oral cavity and application method thereof |
| CN101991468A (en) * | 2010-11-09 | 2011-03-30 | 镇江恒生涓恩医疗器械有限公司 | Method for forming high-strength porcelain on surface of titanium-based material |
| CN102181816A (en) * | 2011-03-23 | 2011-09-14 | 西安交通大学 | Method for increasing bonding strength of titanium or titanium alloy ceramic restoration |
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