ES2200529T3 - COMPOSITION FOR THE ELIMINATION OF OXIDE IN THE ALLOY OF PRECIOUS METALS. - Google Patents
COMPOSITION FOR THE ELIMINATION OF OXIDE IN THE ALLOY OF PRECIOUS METALS.Info
- Publication number
- ES2200529T3 ES2200529T3 ES99931119T ES99931119T ES2200529T3 ES 2200529 T3 ES2200529 T3 ES 2200529T3 ES 99931119 T ES99931119 T ES 99931119T ES 99931119 T ES99931119 T ES 99931119T ES 2200529 T3 ES2200529 T3 ES 2200529T3
- Authority
- ES
- Spain
- Prior art keywords
- composition
- sodium borate
- alloy
- oxides
- gelatin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 239000010970 precious metal Substances 0.000 title abstract description 4
- 230000008030 elimination Effects 0.000 title description 4
- 238000003379 elimination reaction Methods 0.000 title description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910021538 borax Inorganic materials 0.000 claims description 9
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 9
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910000923 precious metal alloy Inorganic materials 0.000 claims description 6
- 108010010803 Gelatin Proteins 0.000 claims description 5
- 239000008273 gelatin Substances 0.000 claims description 5
- 229920000159 gelatin Polymers 0.000 claims description 5
- 235000019322 gelatine Nutrition 0.000 claims description 5
- 235000011852 gelatine desserts Nutrition 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 239000000679 carrageenan Substances 0.000 claims description 3
- 235000010418 carrageenan Nutrition 0.000 claims description 3
- 229920001525 carrageenan Polymers 0.000 claims description 3
- 229940113118 carrageenan Drugs 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims description 3
- 229920001817 Agar Polymers 0.000 claims description 2
- 241000206672 Gelidium Species 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 235000010419 agar Nutrition 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 241001311547 Patina Species 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000002468 ceramisation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dental Preparations (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- ing And Chemical Polishing (AREA)
- Powder Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Composición para la eliminación del óxido en la aleación de metales preciosos.Composition for the removal of rust in the precious metal alloy.
La invención se refiere a composiciones que permiten la eliminación de los óxidos que se forman en la superficie o en el interior del retículo cristalino de aleaciones de metales preciosos o similares, ofreciendo la ventaja de estabilizar las mismas aleaciones; la invención se refiere además al proceso de estabilización logrado mediante el uso de dicha composición.The invention relates to compositions that they allow the elimination of the oxides that form in the surface or inside the alloy crystal lattice of precious metals or similar, offering the advantage of stabilize the same alloys; the invention further relates to the stabilization process achieved through the use of said composition.
Se conoce que durante los procesos de fusión de lingotes de aleaciones de metales preciosos o similares para el moldeo de distintos objetos, tanto para propósitos estéticos como industriales, se forman óxidos en la superficie y en el interior del retículo cristalino de los metales que constituyen la aleación. Dichos óxidos pueden ser perjudiciales para el uso posterior de los objetos, por ejemplo alterando su aspecto externo o causando problemas más graves. Por ejemplo, en el caso de piezas de las aleaciones preciosas utilizadas generalmente en aplicaciones dentales (cápsulas, puentes, pivotes, empastes, etc.), una vez implantadas dichas piezas en la boca de un paciente, los óxidos pueden ser atacados por el efecto de la saliva y absorbidos posteriormente por el paciente. De forma similar las propiedades de las piezas de aleaciones preciosas utilizadas en la electrónica pueden ser perjudicadas por la formación de óxidos.It is known that during the merger processes of ingots of precious metal alloys or the like for molding of different objects, both for aesthetic purposes and industrial oxides are formed on the surface and inside the crystalline lattice of the metals that constitute the alloy. Such oxides may be harmful for the subsequent use of objects, for example altering their external appearance or causing more serious problems For example, in the case of parts of the precious alloys generally used in applications Dental (capsules, bridges, pivots, fillings, etc.), once implanted said pieces in the mouth of a patient, the oxides can be attacked by the effect of saliva and absorbed subsequently by the patient. Similarly the properties of the pieces of precious alloys used in electronics They can be harmed by the formation of oxides.
Por lo tanto, es evidentemente muy importante disponer de un producto que permite la eliminación de los óxidos de aleaciones de metales preciosos.Therefore, it is obviously very important have a product that allows the elimination of oxides of precious metal alloys.
La presente invención permite superar los problemas arriba indicados mediante el uso de composiciones de gelatina que contienen borato sódico.The present invention allows to overcome problems indicated above by using compositions of gelatin containing sodium borate.
Una vez distribuidas en los objetos que han de ser tratados y posteriormente calentados, dichas composiciones permiten la eliminación total de los óxidos superficiales e internos eventualmente formados durante las fases anteriores de elaboración de la aleación de metal y permiten fabricar productos que no presentan ninguna de las desventajas causadas por la presencia de los óxidos..Once distributed in the objects to be be treated and subsequently heated, said compositions allow the total elimination of surface oxides and interns eventually formed during the previous phases of Metal alloy processing and allow to manufacture products that do not present any of the disadvantages caused by the presence of oxides ..
De acuerdo con la invención, un metal precioso o aleación similar es una aleación que consta de metales de los grupos VIII y Ib de la Tabla Periódica de Elementos, en concreto, las aleaciones que constan de oro, plata, paladio, iridio y platino en todas sus posibles combinaciones diferentes.According to the invention, a precious metal or Similar alloy is an alloy consisting of metals of the Groups VIII and Ib of the Periodic Table of Elements, specifically, Alloys consisting of gold, silver, palladium, iridium and platinum in all its possible different combinations.
El producto gelatinoso de la composición de acuerdo con la invención del modo definido en la reivindicación 1 es un metal gelatinoso capaz de quemarse totalmente una vez calentado, sin dejar residuo alguno. Se prefieren los materiales homogéneos, es decir materiales libres de grumos, puesto que permiten una mejor distribución de la composición.The jelly product of the composition of according to the invention in the manner defined in claim 1 It is a gelatinous metal capable of burning completely once heated, leaving no residue. Materials are preferred homogeneous, ie lump-free materials, since They allow a better distribution of the composition.
A los efectos de la invención, el producto gelatinoso se elige de agar-agar, carragenina o celulosa pura.For the purposes of the invention, the product gelatinous is chosen from agar-agar, carrageenan or pure cellulose
Cada uno de los dos productos que constituyen la composición, es decir el producto gelatinoso y borato sódico, pueden estar presentes en una cantidad de entre el 20 y el 70% por peso del total; se prefiere concretamente una composición compuesta por el 50% de borato sódico y 50% de gelatina (por peso).Each of the two products that constitute the composition, i.e. the gelatinous product and sodium borate, they can be present in an amount of between 20 and 70% per total weight; a composite composition is particularly preferred for 50% sodium borate and 50% gelatin (by weight).
La invención se refiere además al uso de las composiciones de acuerdo con la reivindicación 1 o de una composición compuesta por borato sódico y gelatina en un tratamiento para eliminar óxidos de aleaciones de metales preciosos.The invention further relates to the use of compositions according to claim 1 or of a composition composed of sodium borate and gelatin in a treatment to remove oxides from metal alloys beautiful.
Es evidente que las composiciones de acuerdo con la invención puede ser utilizadas para eliminar los óxidos en el caso de objetos en los que la aleación de metal precioso se combina con resinas o cerámica, permitiendo obtener productos que tienen mejor brillo.It is evident that the compositions according to The invention can be used to remove oxides in the case of objects in which the precious metal alloy is combined with resins or ceramics, allowing to obtain products that They have better shine.
La elaboración de una composición de acuerdo con la invención es muy sencilla y se realiza mezclando las cantidades deseadas de ambos componentes en un mezclador, preferentemente dotado de un micronizador, bajo vacío y en una corriente de nitrógeno.The development of a composition according to The invention is very simple and is done by mixing the quantities desired of both components in a mixer, preferably equipped with a micronizer, under vacuum and in a current of nitrogen.
El uso de las composiciones de acuerdo con la invención es asimismo muy sencillo.The use of the compositions according to the invention is also very simple.
La pieza que se ha de tratar, obtenida por el moldeo de los lingotes fundidos en el molde apropiado, se enfría, se pule y se limpia con flujos de chorro de vapor.The piece to be treated, obtained by the molding molten ingots in the appropriate mold, cools, It is polished and cleaned with steam jet flows.
La composición de acuerdo con la invención se distribuye con un pincel en la superficie del objeto y se seca, normalmente a 500ºC, tras lo cual se forma una pátina blanca parecida a tiza.The composition according to the invention is distributed with a brush on the surface of the object and dried, normally at 500 ° C, after which a white patina is formed similar to chalk.
La aleación se somete posteriormente al recocimiento térmico o se homogeniza en un horno, normalmente a 950º, según las indicaciones del fabricante de la aleación.The alloy is subsequently subjected to thermal annealing or homogenization in an oven, usually at 950º, according to the indications of the alloy manufacturer.
El objeto se limpia por ultrasonidos e inmersión en líquido de decapado o ácido fluorhídrico al 40%, se neutraliza posteriormente en agua con bicarbonato y se lava con agua.The object is cleaned by ultrasound and immersion in pickling liquid or 40% hydrofluoric acid, it is neutralized later in water with bicarbonate and washed with water.
Si se pretende conseguir productos de aleación-cerámica, la aleación se ceramiza según las técnicas habituales.If you want to get products from alloy-ceramic, the alloy is ceramized according to The usual techniques.
Si se trata de fabricar objetos de aleación-resina, dicho tratamiento térmico puede ser realizado en un horno o sobre una llama.If it's about making objects from alloy-resin, said heat treatment can be done in an oven or on a flame.
La composición de acuerdo con la invención es útil concretamente para eliminar los óxidos en piezas metálicas que deben ser trituradas.The composition according to the invention is specifically useful for removing oxides in metal parts They must be crushed.
En el caso de los productos que requieren ceramización, después de la eliminación del exceso de esmalte, la composición se aplica a la parte metálica y se calienta a una temperatura muy inferior a la temperatura exigida para quemar cerámica, posteriormente se aplica el procedimiento descrito anteriormente (tratamiento con ultrasonidos, decapado, neutralización y lavado).In the case of the products that require ceramization, after the removal of excess enamel, the composition is applied to the metal part and heated to a temperature much lower than the temperature required to burn ceramic, subsequently the procedure described is applied previously (ultrasound treatment, pickling, neutralization and washing).
Mediante el proceso descrito es posible, por ejemplo, eliminar completamente los óxidos en la parte interior de las copas dentales ceramizadas, consiguiendo una superficie muy resplandeciente.Through the described process it is possible, by example, completely remove the oxides on the inside of ceramized dental cups, getting a very surface resplendent.
Se coloca 30 g. de carragenina en un mezclador bajo vacío y en una corriente de nitrógeno y se añade 30 g de borato sódico. Los productos se mezclan hasta que se forme una pasta homogénea que se recoge y conserva en una nevera hasta el momento de su uso.30 g is placed. carrageenan in a mixer under vacuum and in a stream of nitrogen and 30 g of sodium borate The products are mixed until a homogeneous paste that is collected and preserved in a refrigerator until time of use
Claims (7)
Elementos.7. Use of the compositions according to claim 1 or of a composition composed of sodium borate and gelatin in a treatment for removing oxides from the precious metal alloys of groups VIII and Ib of the Periodic Table of
Elements.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITFI980148 | 1998-06-22 | ||
| IT98FI000148A ITFI980148A1 (en) | 1998-06-22 | 1998-06-22 | COMPOSITIONS FOR THE ELIMINATION OF OXIDES IN ALLOYS OF PRECIOUS METALS AND SIMILAR METALS AND THEIR USE IN THERMAL STABILIZATION PROCESSES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2200529T3 true ES2200529T3 (en) | 2004-03-01 |
Family
ID=11352608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES99931119T Expired - Lifetime ES2200529T3 (en) | 1998-06-22 | 1999-06-21 | COMPOSITION FOR THE ELIMINATION OF OXIDE IN THE ALLOY OF PRECIOUS METALS. |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1090149B1 (en) |
| AT (1) | ATE240411T1 (en) |
| AU (1) | AU4774799A (en) |
| DE (1) | DE69907909T2 (en) |
| ES (1) | ES2200529T3 (en) |
| IT (1) | ITFI980148A1 (en) |
| WO (1) | WO1999067431A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2569057B2 (en) * | 1987-07-10 | 1997-01-08 | 株式会社日立製作所 | X-ray mask defect repair method |
| ITPO20120002A1 (en) * | 2012-02-09 | 2012-05-10 | Emanuele Muto | FORMULATED FOR THE ATOMIC KINETIC DEGASSIFICATION TREATMENT OF NOBLE AND PRECIOUS ELEMENTS |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE562431A (en) * | 1956-11-16 | 1900-01-01 | ||
| GB1095857A (en) * | 1966-02-25 | 1967-12-20 | Albi Mfg Company Inc | Improved fire-retardant coating composition |
| GB1229783A (en) * | 1967-07-07 | 1971-04-28 | ||
| US3661820A (en) * | 1970-07-15 | 1972-05-09 | Park Chem Co | Coating composition for preventing carburization of steel parts with subsequent water wash-off capacity |
| GB1438296A (en) * | 1972-10-26 | 1976-06-03 | Secretary Industry Brit | Prevention of corrosion in metls |
| DE3046334A1 (en) * | 1980-12-09 | 1982-07-22 | Etablissement Dentaire Ivoclar, Schaan | INTERRUPTABLE BASE FOR PRODUCING AN INTERMEDIATE LAYER BETWEEN A HIGH-MELTING DENTAL METAL ALLOY AND TOOTHPORCELAIN |
| JPH068493B2 (en) * | 1986-04-22 | 1994-02-02 | 三菱電機株式会社 | Noble metal coating method |
| JPH06316744A (en) * | 1993-04-30 | 1994-11-15 | Sumitomo Special Metals Co Ltd | Production of fe-ni-co series alloy parts for sealing |
-
1998
- 1998-06-22 IT IT98FI000148A patent/ITFI980148A1/en unknown
-
1999
- 1999-06-21 WO PCT/EP1999/004283 patent/WO1999067431A1/en not_active Ceased
- 1999-06-21 AU AU47747/99A patent/AU4774799A/en not_active Abandoned
- 1999-06-21 AT AT99931119T patent/ATE240411T1/en not_active IP Right Cessation
- 1999-06-21 DE DE69907909T patent/DE69907909T2/en not_active Expired - Fee Related
- 1999-06-21 ES ES99931119T patent/ES2200529T3/en not_active Expired - Lifetime
- 1999-06-21 EP EP99931119A patent/EP1090149B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999067431A1 (en) | 1999-12-29 |
| DE69907909T2 (en) | 2004-03-11 |
| DE69907909D1 (en) | 2003-06-18 |
| ITFI980148A1 (en) | 1999-12-22 |
| AU4774799A (en) | 2000-01-10 |
| EP1090149A1 (en) | 2001-04-11 |
| EP1090149B1 (en) | 2003-05-14 |
| ATE240411T1 (en) | 2003-05-15 |
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