CN101078073A - Odontology nickel-chromium stove enamel alloy and application thereof - Google Patents
Odontology nickel-chromium stove enamel alloy and application thereof Download PDFInfo
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- CN101078073A CN101078073A CN 200610046657 CN200610046657A CN101078073A CN 101078073 A CN101078073 A CN 101078073A CN 200610046657 CN200610046657 CN 200610046657 CN 200610046657 A CN200610046657 A CN 200610046657A CN 101078073 A CN101078073 A CN 101078073A
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Abstract
A kind of braked porcelain alloy made of nickel and chromium and used in tooth section, it is mostly used as coronet l and coronal bridge of braked porcelain teeth, the following are the chemic components of it: carbon C<=0.03, chromium Cr: 12-24, molybdenum Mo: 5-10, cobalt Co<=1.5, titanium Ti<=1, aluminum Al: 1-3, copper Cu<=0.5, rare earth Re<=0.5, the other is nickel Ni. The alloy in this patent does not contain noxious element, and it is good at antioxidation and corrode-resistant, and it matches very well with the porcelain powder in existence.
Description
Technical field
The present invention relates to be used for the porcelain corona denture prosthesis nichrome teeth such as bridge of coming of age, specifically a kind of odontology nickel-chromium stove enamel alloy and application thereof
Background technology
The odontopathy morbidity is all very high in countries in the world, and with regard to China, odontopathy patient reaches 800,000,000 more than.And defect of teeth, denture lack split with dentition defect be common disease in the odontopathy, adopt artificial tooth reparation usually.Good mechanical performance such as alloy material intensity, hardness, wear resistance, weather resistance and toughness, after particularly lost wax process technology is introduced dental field, alloy becomes main repair materials, at present, at the most widely used expensive casting metal of the alloy right and wrong alloy of China, wherein nickel-base casting alloy is mainly used in porcelain molten attached dummy, denture and corona bridge, is China's porcelain alloy commonly used.
Base metal casting alloy cost is low, meet current China people's lives needs, use general in China, but it is reported title, the still home-made base metal porcelain platform gold of import no matter, the beryllium element Be that is contained is to the toxic effect of human body, the effect of beryllium element is to reduce fusing point in the alloy, the ni-cr porcelain alloy that contains beryllium is because of its bio-toxicity and unmanageable surface oxidation film thickness, in clinical application, more and more demonstrate its deficiency, and the ni-cr porcelain alloy that does not contain beryllium at home dentistry circle more and more receive an acclaim.
Dental material belongs to biomaterial, and is strict especially to material requirements, requires alloy that high intensity, hardness and ductility are arranged, and fusing point is low, good fluidity, shrinkage coefficient are little; Requirement alloy chromaticness is good, discoloration-resisting good, has good coupling with the porcelain powder; Good free-running property is arranged in requirement and the shrinkage coefficient that is suitable for mutually with the embedded material coefficient of expansion (promptly solidify with process of cooling in contraction); Also require the alloy organizing good stability,, require alloy that good biocompatibility is arranged, anti-oxidant and wear-corrosion resistance owing in the oral cavity, use for a long time.
Summary of the invention
It is lower to the invention provides a kind of cost, working condition is simple, and does not contain the Ni-Cr alloy for false tooth of toxic beryllium element, and this alloy not only has good anti-oxidant and erosion resistance, but also have advantages of good casting, can mate use well with existing porcelain powder.
For achieving the above object, the technical solution used in the present invention is:
A kind of odontology nickel-chromium stove enamel alloy is mainly used in the porcelain tooth with being preced with the bridge etc. of coming of age, and its concrete chemical ingredients is by weight: carbon C≤0.03, chromium Cr:12～24, molybdenum Mo:5～10, cobalt Co≤1.5, titanium Ti≤1, aluminium Al:1～3, copper Cu≤0.5, rare earth Re≤0.5, surplus nickel.
Its preferable chemical ingredients is: carbon C≤0.03, chromium Cr:12～24, molybdenum Mo:5～10, cobalt 0.5≤Co≤1.5, titanium 0.5≤Ti≤1, aluminium Al:1～3, copper Cu≤0.5, rare earth 0.1≤Re≤0.5, surplus nickel.
The range of application of nichrome of the present invention: nichrome of the present invention does not contain the toxicity beryllium element, has good anti-oxidant and anti-corrosion corrodibility, can fine coupling use with existing porcelain powder.Be mainly used in the artificial tooth repair materials, can be used for making various dental prosthesis, as various inlays, 3/4 hat, complete crown, veneer hat, short span bridge or Long Span Bridge etc.
Nickel chromium triangle casting porcelain alloy provided by the invention does not contain toxic beryllium element, the effect of beryllium element is to reduce fusing point in the early stage nichrome, improve the combination of golden porcelain, add aluminium and the titanium elements that similar characteristics are also arranged among the present invention, the adding of aluminium element can reduce the fusing point of alloy, strengthen mobile, aluminium is again the reductive agent of melting simultaneously, can make cast(ing) surface smooth, thereby make casting easier, Al can replace the effect of Be element in alloy, but can not cause the reduction of castability because of the removal beryllium element.
Cr and Mo element in Ni base alloy can make the metallic surface form protective oxide film, improve the solidity to corrosion of alloy.The adding of Cu element can suitably improve the casting fluidity of alloy.The adding of rare earth element can reduce and the refinement steel inclusion improves the performance of alloy.
Embodiment
Dental nichrome of the present invention adopts conventional vacuum induction furnace (not adding malleation) to smelt, be cast into the bar of suitable dimension, the related physical performance and the mechanical property of gained dentistry nichrome as cast condition bar: fusing point=1300-1450, thermal expansivity=13.4-14.1 * 10
-6, σ b 〉=780MPa, σ 0.2 〉=500MPa, δ 5 〉=8%, Ψ 〉=5%, Hv5 〉=220, the bonding force between alloy and the porcelain can be up to more than the 397Mpa.
Embodiment:
The chemical ingredients scope that sets according to the present invention has been smelted 2 stove steel in 25 kg capacity vacuum induction furnaces, its concrete chemical ingredients is as shown in table 1.The mechanical property that records is as shown in table 2.
The chemical ingredients of table 1 dental nichrome
| Ni | Cr | Mo | Co | Ti | Al | RE | C | |
| Alloy 1 | 69.3 | 21.73 | 4.69 | 1.18 | 0.73 | 1.80 | -- | 0.013 |
| Alloy 2 | 73.2 | 13.46 | 8.82 | 0.58 | 0.64 | 2.41 | 0.39 | 0.0090 |
| Alloy 3 | 71.6 | 17.32 | 6.76 | 0.84 | 0.54 | 2.22 | 0.26 | 0.016 |
The mechanical property of table 2 dental nichrome
| Alloy | Yield strength б 0.2(MPa) | Tensile strength б b (MPa) | Unit elongation δ 5 (％) | Sectional shrinkage ψ (%) | Hardness Hv 5 |
| Alloy 1 | 567 | 874 | 12 | 7.5 | 259 |
| Alloy 2 | 521 | 798 | 9 | 6.0 | 241 |
| Alloy 3 | 545 | 818 | 10.5 | 8 | 252 |
Claims (5)
1. odontology nickel-chromium stove enamel alloy, it is characterized in that: its concrete chemical ingredients is by weight: carbon C≤0.03, chromium Cr:12～24, molybdenum Mo:5～10, cobalt Co≤1.5, titanium Ti≤1, aluminium Al:1～3, copper Cu≤0.5, rare earth Re≤0.5, surplus nickel.
2. according to the described odontology nickel-chromium stove enamel alloy of claim 1, it is characterized in that: carbon C≤0.03, chromium Cr:12～24, molybdenum Mo:5～10, cobalt 0.5≤Co≤1.5, titanium 0.5≤Ti≤1, aluminium Al:1～3, copper Cu≤0.5, rare earth 0.1≤Re≤0.5, surplus nickel.
3. the application of an odontology nickel-chromium stove enamel alloy is characterized in that: described alloy is mainly used in the artificial tooth repair materials.
4. according to the application of the described odontology nickel-chromium stove enamel alloy of claim 3, it is characterized in that: described alloy is mainly used in makes various dental prosthesis.
5. according to the application of the described odontology nickel-chromium stove enamel alloy of claim 4, it is characterized in that: described alloy is mainly used in makes various teeth inlay, 3/4 hat, complete crown, veneer hat, short span bridge or Long Span Bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100466577A CN100519795C (en) | 2006-05-24 | 2006-05-24 | Odontology nickel-chromium stove enamel alloy and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100466577A CN100519795C (en) | 2006-05-24 | 2006-05-24 | Odontology nickel-chromium stove enamel alloy and application thereof |
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| Publication Number | Publication Date |
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| CN101078073A true CN101078073A (en) | 2007-11-28 |
| CN100519795C CN100519795C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100466577A Expired - Fee Related CN100519795C (en) | 2006-05-24 | 2006-05-24 | Odontology nickel-chromium stove enamel alloy and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978445A (en) * | 2012-11-07 | 2013-03-20 | 洛阳北苑特种陶瓷有限公司 | Nickel-chromium-based alloy for porcelain teeth and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210447A (en) * | 1974-05-01 | 1980-07-01 | Unitek Corporation | Dental restorations using castings of non-precious metals |
| US4249943A (en) * | 1978-10-11 | 1981-02-10 | Williams Gold Refining Company Incorporated | Non-precious ceramic alloy |
| CN1061696C (en) * | 1998-04-24 | 2001-02-07 | 冶金工业部钢铁研究总院 | Ni-Cr alloy for false tooth |
-
2006
- 2006-05-24 CN CNB2006100466577A patent/CN100519795C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978445A (en) * | 2012-11-07 | 2013-03-20 | 洛阳北苑特种陶瓷有限公司 | Nickel-chromium-based alloy for porcelain teeth and preparation method thereof |
| CN102978445B (en) * | 2012-11-07 | 2016-12-21 | 洛阳北苑特种陶瓷有限公司 | A kind of for baking-ceramic tooth nickel chromio-based alloy and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100519795C (en) | 2009-07-29 |
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Granted publication date: 20090729 Termination date: 20130524 |