CN103340689A - Method for manufacturing dental cobalt-chromium ceramic alloy disc material - Google Patents
Method for manufacturing dental cobalt-chromium ceramic alloy disc material Download PDFInfo
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- CN103340689A CN103340689A CN2013102921783A CN201310292178A CN103340689A CN 103340689 A CN103340689 A CN 103340689A CN 2013102921783 A CN2013102921783 A CN 2013102921783A CN 201310292178 A CN201310292178 A CN 201310292178A CN 103340689 A CN103340689 A CN 103340689A
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Abstract
The invention relates to a method for manufacturing a dental cobalt-chromium ceramic alloy disc material suitable for a CAD/CAM (Computer Aided Design / Computer Aided Manufacturing) tooth carving machine, belonging to the technical field of a dental material. The method comprises the following steps of: preparing furnace charge, then putting the furnace charge into a furnace for vacuum melting and vacuum casting, and rolling with a rolling mill, wherein the rolling temperature is 1200-1300 DEG C, the rolling deformation is 2.6-4.8 percent, and the rolling pass is 2-6 passes; forming a semi-finished product material; and finally according to the needed thickness, causing the semi-finished product material to be subjected to wire cutting and turning of a turning lathe to obtain the dental cobalt-chromium ceramic alloy disc materials with different thicknesses suitable for the CAD/CAM tooth carving machines. The dental cobalt-chromium ceramic alloy disc material provided by the technical scheme has the advantages of smooth and clean surface, good compactness, no crack, good biocompatibility with a human body, good corrosion resistance, appropriate strength, hardness, extensibility and thermal expansion properties and good metal and ceramic powder bonding strength.
Description
Technical field
The present invention relates to a kind of dental materials technical field, particularly a kind of manufacture method that is applicable to the dental cobalt chromium porcelain alloy disc material of CAD/CAM tooth carving machine.
Background technology
Dental cobalt chromium porcelain alloy material is mainly used in making porcelain alloy hat that dentistry fixed, the repaired usefulness bridge of coming of age, and is a kind of medical bio metal alloy compositions commonly used.Damaged and the disappearance of tooth is a kind of common oral wounds, and it not only influences attractive in appearance, and directly has influence on people's health.Dental materials is as a branch of biomaterial for medical purpose, its not only requirement can the implant into body oral cavity in, and require its can be in the oral cavity existence of this particular environment midium or long term.The metal porcelain is a new technique of Oral Repair dental defect, and it utilizes metal as substrate, burns the last layer pottery on its surface, makes both strong bonded, reaches the purpose of repairing dental functions.The high strength that it had both kept metal to have has the color of enamel and attractive in appearance again, can compare favourably with natural tooth.This technology U.S. in last century early fifties succeed in developing, and be applied to clinically, this technology has had suitable development so far.Porcelain alloy can be divided into precious metal alloys and non-noble metal alloy two classes substantially.Though precious metal alloys stable chemical performance, biocompatibility are good, easy to operate, because its material cost is higher, limited the scope of its application.At present, non-noble metal alloy has obtained using widely, wherein mainly comprises Ni-Cr alloy, Co-Cr alloy, Ti and Ti alloy.The Co-Cr alloy has stronger stabilized metal, and corrosion resistance is than advantages such as height, and with precious metal stove enamel tooth and full porcelain tooth, Ti and Ti alloy phase ratio, the price of cobalt chromium porcelain tooth is more economical.
Dental cobalt chromium porcelain alloy is made artificial tooth and is belonged to traditional artificial tooth manufacture method, and production process is cumbersome, need fill up recessed, smear gap agent, makes operations such as wax pattern, embedding, roasting, casting, Che Jin.Cause traditional artificial tooth working (machining) efficiency low, recruitment cost height, and produce a large amount of rubbish, smog and dust, and cause workshop condition poor, it is healthy to influence the staff.
Along with development of science and technology, the reparation of Buccodental has presented the revolution of the formula of overturning, and no longer is above-mentioned renovation technique, now adopts CAD/CAM tooth carving mechanism to make ceramic crown bridge, hat dummy, makes the manufacturing of artificial tooth stride forward the digitalized oral cavity epoch.Like this material also just having been proposed new requirement, no longer is to be used for the small-sized piece material of roasting, casting, car gold originally, but is applicable to the bulk disk material of CAD/CAM tooth carving machine different-thickness.
The present whole world is German WHITE PERKS CE0483, German Eisenbacher Dentalwaren ED only, GmbH, CE0434 production and sales dental cobalt chromium porcelain alloy disk.
In view of this, from the autonomous angle of industry, must develop dental cobalt chromium porcelain alloy disk new material, break away from dental cobalt chromium porcelain alloy disk simultaneously to the absolute dependence of import and allow more ordinary peoples load onto tooth, because digital technology can be handled complicated clinical setting effectively and consistent and high-quality dummy are provided, satisfied the cheapness that odontopathy patient enjoys odontotherapy, technical scheme described below produces under this background.
Summary of the invention
The objective of the invention is in order to overcome above deficiency, provide a kind of manufacture method simple, good, the flawless of disc material any surface finish, compactness after making, with the human body excellent biological compatibility, have excellent corrosion resisting performance, have the manufacture method of the dental cobalt chromium porcelain alloy disc material of suitable intensity, hardness, extension property, hot expansibility and good metal porcelain powder bond strength.
Purpose of the present invention is achieved through the following technical solutions: a kind of manufacture method of dental cobalt chromium porcelain alloy disc material may further comprise the steps:
A, preparation furnace charge: prepare cobalt 60%-62%, chromium 25%-27%, molybdenum 4%-5%, tungsten 6%-8%, titanium 0.2%-0.8%, silicon 0.1%-0.5%, ferrum 0.2%-0.7%, manganese 0.5%-1.0% by weight percentage;
B, furnace charge is put into stove use mill milling behind vacuum metling, vacuum casting, rolling temperature is 1200～1300 ℃, and rolling reduction is 2.6%～4.8%, and rolling pass is 2～6 passages, forms semifinished material;
C, semifinished material thickness as required obtained to be applicable to the dental cobalt chromium porcelain alloy disk new material of the different-thickness of CAD/CAM tooth carving machine by line cutting processing and lathe turning processing back.
Further improvement of the present invention is: the rolling temperature described in the step B is 1200 ℃, and rolling reduction is 2.6%, and rolling pass is 6 passages.
Further improvement of the present invention is: the rolling temperature described in the step B is 1250 ℃, and rolling reduction is 3.7%, and rolling pass is 4 passages.
Further improvement of the present invention is: the rolling temperature described in the step B is 1300 ℃, and rolling reduction is 4.8%, and rolling pass is 2 passages.
The present invention compared with prior art has the following advantages: manufacture method is comparatively simple, dental cobalt chromium porcelain alloy disc surfaces after making is bright and clean, compactness good, flawless, have and the human body excellent biological compatibility, has excellent corrosion resisting performance, have suitable intensity, hardness, extension property, hot expansibility and good metal porcelain powder bond strength, be applicable to that CAD/CAM tooth carving mechanism makes artificial tooth, overturned traditional artificial tooth manufacture method, made the manufacturing of artificial tooth stride forward the digitalized oral cavity epoch.
The specific embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and this embodiment only is used for explaining the present invention, does not constitute the restriction to protection domain of the present invention.
The present invention shows a kind of specific embodiment of manufacture method of dental cobalt chromium porcelain alloy disc material, may further comprise the steps: A, preparation furnace charge: prepare cobalt 60%-62%, chromium 25%-27%, molybdenum 4%-5%, tungsten 6%-8%, titanium 0.2%-0.8%, silicon 0.1%-0.5%, ferrum 0.2%-0.7%, manganese 0.5%-1.0% by weight percentage; B, furnace charge is put into stove use mill milling behind vacuum metling, vacuum casting, rolling temperature is 1200～1300 ℃, and rolling reduction is 2.6%～4.8%, and rolling pass is 2～6 passages, forms semifinished material; C, semifinished material thickness as required obtained to be applicable to the dental cobalt chromium porcelain alloy disk new material of the different-thickness of CAD/CAM tooth carving machine by line cutting processing and lathe turning processing back.
Embodiment one: A, preparation furnace charge: prepare cobalt (Co) 61%, chromium (Cr) 26%, molybdenum (Mo) 4.5%, tungsten (W) 6.5%, titanium (Ti) 0.5%, silicon (Si) 0.5%, ferrum (Fe) 0.3%, manganese (Mn) 0.7% by weight percentage; B, furnace charge is put into stove use mill milling behind vacuum metling, vacuum casting, rolling temperature is 1200 ℃, and rolling reduction is 2.6%, and rolling pass is 6 passages, forms semifinished material; C, semifinished material thickness as required obtained to be applicable to the dental cobalt chromium porcelain alloy disk new material of the different-thickness of CAD/CAM tooth carving machine by line cutting processing and lathe turning processing back.
Embodiment two: A, preparation furnace charge: prepare cobalt (Co) 62%, chromium (Cr) 25.5%, molybdenum (Mo) 4.5%, tungsten (W) 7%, titanium (Ti) 0.2%, silicon (Si) 0.1%, ferrum (Fe) 0.2%, manganese (Mn) 0.5% by weight percentage; B, furnace charge is put into stove use mill milling behind vacuum metling, vacuum casting, rolling temperature is 1250 ℃, and rolling reduction is 3.7%, and rolling pass is 4 passages, forms semifinished material; C, semifinished material thickness as required obtained to be applicable to the dental cobalt chromium porcelain alloy disk new material of the different-thickness of CAD/CAM tooth carving machine by line cutting processing and lathe turning processing back.
Embodiment three: A, preparation furnace charge: prepare cobalt (Co) 60.5%, chromium (Cr) 25.5%, molybdenum (Mo) 5%, tungsten (W) 7%, titanium (Ti) 0.7%, silicon (Si) 0.3%, ferrum (Fe) 0.4%, manganese (Mn) 0.6% by weight percentage; B, furnace charge is put into stove use mill milling behind vacuum metling, vacuum casting, rolling temperature is 1300 ℃, and rolling reduction is 4.8%, and rolling pass is 2 passages, forms semifinished material; C, semifinished material thickness as required obtained to be applicable to the dental cobalt chromium porcelain alloy disk new material of the different-thickness of CAD/CAM tooth carving machine by line cutting processing and lathe turning processing back.
Following table is depicted as the test result by the resulting dental cobalt of embodiments of the invention 1---3 chromium porcelain alloy disk:
The standard of the standard clause indication in the last table is the 0352-2013 of standard YZB/ Soviet Union of Jiangsu Province, China medical apparatus and instruments Registering product; 1 ﹟ in the last table---3 ﹟ refer to the sampling sample by the dental cobalt chromium porcelain alloy disk of the resulting CAD/CAM of the being applicable to tooth carving of embodiment 1---3 machine; Testing result in the table has been done (No. the 1751st, survey report (2012) ZC class by the check of Jiangsu Province, China medical apparatus and instruments, in addition, obtained the equipment registration authentication of Jiangsu Province, China food and medicine Surveillance Authority by the dental cobalt chromium porcelain alloy disk of the resulting CAD/CAM of the being applicable to tooth carving of above-described embodiment 1---3 machine equally, equipment registration card number: No. the 2630282nd, Soviet Union's food medicine prison tool (standard) word, the medical device product CE of European Union authentication, CE2195, in addition, be applicable to that by above-described embodiment 1---3 is resulting the dental cobalt chromium porcelain alloy disk warp of CAD/CAM tooth carving machine is external equally, the U.S., Britain, Italy, state users such as Switzerland use, the refined U.S. in domestic Nanjing oral cavity technology company limited, users such as Kunming allusion quotation hat artificial tooth technology company limited use, steady quality, dependable performance, all obtain consistent favorable comment certainly, fully can be with German WHITE PERKS CE0483, Germany Eisenbacher Dentalwaren ED, the dental cobalt chromium porcelain alloy disk of GmbH CE0434 production and sales compares favourably.
The manufacture method of the disc material that technical solution of the present invention provides is comparatively simple, dental cobalt chromium porcelain alloy disc surfaces after making is bright and clean, compactness good, flawless, have and the human body excellent biological compatibility, has excellent corrosion resisting performance, have suitable intensity, hardness, extension property, hot expansibility and good metal porcelain powder bond strength, be applicable to that CAD/CAM tooth carving mechanism makes artificial tooth, overturned traditional artificial tooth manufacture method, making the manufacturing of artificial tooth stride forward the digitalized oral cavity epoch, is the important milestone of Oral Repair technology career development.
Claims (4)
1. the manufacture method of a dental cobalt chromium porcelain alloy disc material is characterized in that may further comprise the steps:
A, preparation furnace charge: prepare cobalt 60%-62%, chromium 25%-27%, molybdenum 4%-5%, tungsten 6%-8%, titanium 0.2%-0.8%, silicon 0.1%-0.5%, ferrum 0.2%-0.7%, manganese 0.5%-1.0% by weight percentage;
B, furnace charge is put into stove use mill milling behind vacuum metling, vacuum casting, rolling temperature is 1200～1300 ℃, and rolling reduction is 2.6～4.8%, and rolling pass is 2～6 passages, forms semifinished material;
C, semifinished material thickness as required obtained to be applicable to the dental cobalt chromium porcelain alloy disc material of the different-thickness of CAD/CAM tooth carving machine by line cutting processing and lathe turning processing back.
2. according to the manufacture method of the described dental cobalt of claim 1 chromium porcelain alloy disc material, it is characterized in that: the rolling temperature described in the step B is 1200 ℃, and rolling reduction is 2.6%, and rolling pass is 6 passages.
3. according to the manufacture method of the described dental cobalt of claim 1 chromium porcelain alloy disc material, it is characterized in that: the rolling temperature described in the step B is 1250 ℃, and rolling reduction is 3.7%, and rolling pass is 4 passages.
4. according to the manufacture method of the described dental cobalt of claim 1 chromium porcelain alloy disc material, it is characterized in that: the rolling temperature described in the step B is 1300 ℃, and rolling reduction is 4.8%, and rolling pass is 2 passages.
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Cited By (6)
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| CN105154720A (en) * | 2015-09-24 | 2015-12-16 | 无锡日月合金材料有限公司 | Co-Cr denture alloy material and preparing method thereof |
| KR101828981B1 (en) * | 2016-06-08 | 2018-02-13 | 주식회사 하이덴탈코리아 | Co-Cr based alloy for dental porcelain fused metal using vacuum precision casting and manufacturing method thereof |
| CN107937793A (en) * | 2017-11-17 | 2018-04-20 | 梁乔保 | A kind of antibacterial porcelain alloy for Dental Erosion and preparation method thereof |
| CN109998715A (en) * | 2019-04-10 | 2019-07-12 | 青岛威尔赫义齿科技有限公司 | A kind of manufacturing method of tooth-implanting bridge |
| CN109998714A (en) * | 2019-04-10 | 2019-07-12 | 青岛威尔赫义齿科技有限公司 | A kind of 3 D-printing formula preparation method of tooth-implanting bridge |
| CN112972030A (en) * | 2020-12-30 | 2021-06-18 | 南通今日高科技新材料股份有限公司 | Process for biologically and intelligently carving ceramic teeth |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109998715A (en) * | 2019-04-10 | 2019-07-12 | 青岛威尔赫义齿科技有限公司 | A kind of manufacturing method of tooth-implanting bridge |
| CN109998714A (en) * | 2019-04-10 | 2019-07-12 | 青岛威尔赫义齿科技有限公司 | A kind of 3 D-printing formula preparation method of tooth-implanting bridge |
| CN112972030A (en) * | 2020-12-30 | 2021-06-18 | 南通今日高科技新材料股份有限公司 | Process for biologically and intelligently carving ceramic teeth |
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Application publication date: 20131009 |