ES2310427T3 - NON-OXIDATED METALLIC POWDER. - Google Patents
NON-OXIDATED METALLIC POWDER. Download PDFInfo
- Publication number
- ES2310427T3 ES2310427T3 ES99935265T ES99935265T ES2310427T3 ES 2310427 T3 ES2310427 T3 ES 2310427T3 ES 99935265 T ES99935265 T ES 99935265T ES 99935265 T ES99935265 T ES 99935265T ES 2310427 T3 ES2310427 T3 ES 2310427T3
- Authority
- ES
- Spain
- Prior art keywords
- powder
- iron
- weight
- carbide
- atomized
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Carbon And Carbon Compounds (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
Polvo metálico aleado no oxidante.Non-oxidizing alloy metal powder.
La presente invención se refiere a un polvo metálico, aleado, no oxidante, a base de hierro enriquecido con carbono ligado con carburo en la capa de superficie, y también al uso del polvo metálico aleado, no oxidante, atomizado.The present invention relates to a powder metallic, alloyed, non-oxidizing, iron-based enriched with carbon bound with carbide in the surface layer, and also at use of alloyed, non-oxidizing, atomized metal powder.
La mayoría de los polvos metálicos son fabricados por medio de atomización, electrólisis, o mediante reducción química o del óxido. El polvo es utilizado en mezclas para fabricar compuestos de aleación que son ligados metalúrgicamente tras la sinterización. Los polvos metálicos y no metálicos pueden ser combinados para producir un material compuesto con propiedades especiales.Most metal powders are manufactured by atomization, electrolysis, or by chemical or oxide reduction. The powder is used in mixtures to make alloy compounds that are bound metallurgically after sintering. Metal powders and not Metallic can be combined to produce a composite material With special properties.
El compuesto metalúrgico de polvo más frecuentemente utilizado es el polvo de hierro el cual se utiliza en la fabricación de diversas piezas estructuradas. El polvo de hierro algunas veces se utiliza solo, o lo que es más habitual, junto con diversos aditivos con el fin de mejorar las posibilidades mecánicas de los productos sinterizados comprimidos. Los aditivos del polvo incluyen el carbono, el cobre, el níquel y el molibdeno.The most metallurgical powder compound frequently used is iron powder which is used in the manufacture of various structured pieces. Iron dust sometimes it is used alone, or what is more common, along with various additives in order to improve the mechanical possibilities of compressed sintered products. Powder additives They include carbon, copper, nickel and molybdenum.
El documento US A, 5,522,914, divulga un polvo
de metal aleado compuesto por de un 0,80 a un 3,00 por ciento en
peso de carbono, de un 0,20 a un 2,00 por ciento en peso de
manganeso, de un 0,20 a 1,50 por ciento en peso de silicio, así
como de un 3,00 a un 12,0 por ciento en peso de cromo, de un 0,20 a
un 0,30 por ciento en peso de azufre, hasta un 0,04 por ciento en
peso de fósforo, de un 0,25 a un 10,0 por ciento en peso de
vanadio, hasta un 11,0 por ciento en peso de molibdeno, hasta un
18,0 por ciento en peso de mercurio hasta un 10 por ciento en peso
de cobalto y hasta un 0,10 por ciento en peso de nitrógeno además
del hierro. El contenido en oxígeno del polvo es inferior al 0,025
por ciento en peso. El polvo es obtenido por atomización en
atmósfera de gas de nitrógeno con el fin de conseguir un contenido
de oxígeno
bajo.US A, 5,522,914, discloses an alloy metal powder composed of 0.80 to 3.00 percent by weight of carbon, from 0.20 to 2.00 percent by weight of manganese, of 0.20 to 1.50 percent by weight of silicon, as well as 3.00 to 12.0 percent by weight of chromium, from 0.20 to 0.30 percent by weight of sulfur , up to 0.04 percent by weight of phosphorus, from 0.25 to 10.0 percent by weight vanadium, up to 11.0 percent by weight molybdenum, up to 18.0 percent by weight weight of mercury up to 10 percent by weight of cobalt and up to 0.10 percent by weight of nitrogen in addition to iron. The oxygen content of the powder is less than 0.025 percent by weight. The powder is obtained by atomization in a nitrogen gas atmosphere in order to achieve an oxygen content
low.
El problema de la producción del polvo de metal es el contenido en oxígeno. Un alto contenido en oxígeno es inadecuado cuando el polvo metálico va a utilizarse en herramientas u otros artículos que requieren una elevada resistencia mecánica. En el documento US, A, 5,522,914 el problema ha sido resuelto atomizando el polvo en una atmósfera de nitrógeno. Esto es costoso como consecuencia de una inclusión no deseada de nitrógeno en el polvo producido.The problem of metal powder production It is the oxygen content. A high oxygen content is inappropriate when metal dust is to be used in tools or other items that require high mechanical strength. In document US, A, 5,522,914 the problem has been solved atomizing the dust in a nitrogen atmosphere. This is expensive as a result of an unwanted inclusion of nitrogen in the produced powder
El problema del nitrógeno añadido se resuelve mediante la utilización de hidrocarburo el cual es parcialmente carbonizado durante el proceso de atomización. Dicho uso de hidrocarburo se conoce a través de la solicitud de patente sueca 9601482-4. El polvo de acero atomizado obtenido ha adquirido un carbono ligado con carburo enriquecido en la capa de superficie y un contenido en oxígeno bajo.The problem of added nitrogen is solved through the use of hydrocarbon which is partially carbonized during the atomization process. Said use of hydrocarbon is known through the Swedish patent application 9601482-4. The atomized steel powder obtained has acquired a carbon bound with enriched carbide in the layer of surface and low oxygen content.
Sorprendentemente, se ha encontrado ahora que la oxidación puede impedirse enriqueciendo el carbono ligado con carburo en la capa de superficie. Esto significa que pueden obtenerse partículas de carbono aleadas que incluyan sustancias de aleación sensibles a la oxidación como por ejemplo el cromo, el manganeso, el silicio. Así miso, puede evitarse el uso de una atmósfera de nitrógeno, dado que la atmósfera del equipamiento de atomización es saturada con el medio de atomización vaporizado o carbonizado.Surprisingly, it has now been found that the oxidation can be prevented by enriching the carbon bound with carbide in the surface layer. This means that they can obtain alloyed carbon particles that include substances from oxidation sensitive alloy such as chromium, the manganese, silicon. So miso, you can avoid using a nitrogen atmosphere, since the atmosphere of the equipment atomization is saturated with the vaporized atomization medium or carbonized
La presente invención resuelve así los problemas del oxígeno añadido y del oxígeno no deseado. El polvo metálico aleado, atomizado, de acuerdo con la invención es inoxidante así como impeditivo de la oxidación. Tiene propiedades de polvo metalúrgico mejoradas como por ejemplo la resistencia y la dureza. El carbono ligado con carburo en la capa de superficie de las partículas de polvo está enriquecido.The present invention thus solves the problems. of added oxygen and unwanted oxygen. Metal dust alloyed, atomized, according to the invention is stainless as well as an oxidation inhibitor. It has dust properties Improved metallurgical such as strength and hardness. The carbide-bound carbon in the surface layer of the Dust particles are enriched.
El polvo metálico aleado, no oxidante, de acuerdo con la invención se proporciona en la reivindicación 1. Comprende metales de aleación sensibles a la oxidación como por ejemplo el cromo y el manganeso, además del polvo y el hierro ligado con carburo. Estos metales de aleación son capaces de producir carbono ligado con carburo.Alloyed, non-oxidizing metal powder of according to the invention is provided in claim 1. It comprises oxidation sensitive alloy metals as per example chromium and manganese, in addition to dust and iron bound with carbide. These alloy metals are capable of produce carbon bound with carbide.
El medio de atomización utilizado en la producción del polvo metálico aleado no oxidante se compone de hidrocarburos seleccionados entre el grupo que comprende la parafina, los aceites diésel, u otros hidrocarburos cíclicos o acíclicos que han sido parcialmente carbonizados durante la atomización. El hidrógeno se forma durante la carbonización de los hidrocarburos, así como los carburos que están ligados a los metales de las partículas de polvo. La atmósfera del recipiente de atomización es saturada con el medio de atomización vaporizado o carbonizado compuesto por hidrocarburos e hidrógeno. La atmósfera es por tanto reductora, protegiendo de esta forma las partículas de polvo producidas.The atomization medium used in the Production of non-oxidized alloy metal powder is composed of hydrocarbons selected from the group comprising the paraffin, diesel oils, or other cyclic hydrocarbons or acyclics that have been partially carbonized during atomization. Hydrogen is formed during carbonization of hydrocarbons, as well as carbides that are bound to metals of dust particles. The atmosphere of the vessel atomization is saturated with the vaporized atomization medium or carbonized composed of hydrocarbons and hydrogen. The atmosphere is therefore reducing, thus protecting the particles of dust produced.
La invención proporciona un polvo metálico no oxidante, aleado, atomizado a base de hierro enriquecido con carbono ligado con carburo en la capa de superficie, que ha sido ligado con carburo al metal de las partículas de polvo mediante un medio de atomización carbonizado seleccionado entre el grupo que comprende la parafina, los aceites diésel, u otros hidrocarburos cíclicos o acíclicos durante la atomización.The invention provides a metallic powder not oxidizing, alloyed, iron-based atomized enriched with carbon bound with carbide in the surface layer, which has been bound with carbide to the metal of the dust particles by means of a carbonized atomization medium selected from the group that comprises paraffin, diesel oils, or other hydrocarbons cyclic or acyclic during atomization.
La distribución granulométrica de las partículas de polvo es de 45 a 200 \mum.The particle size distribution of powder is 45 to 200 µm.
La producción del polvo metálico no oxidante, aleado, atomizado, a base de hierro con carbono ligado con carburo enriquecido en la capa de superficie permite la fabricación de productos sinterizados comprimidos como por ejemplo ruedas dentadas, cojinetes de bolas de acero para herramientas. Estos productos requieren una elevada resistencia y dureza mecánica y estas propiedades se consiguen puesto que los aditivos de aleación incrementan la calidad de resistencia de la atemperación. Los productos son fabricados por medio de una compresión metalúrgica de polvo convencional, compresión y sinterización en caliente, compresión isostática en caliente, y forjado de sinterización.The production of non-oxidizing metal powder, alloy, atomized, iron-based with carbide-bound carbon enriched in the surface layer allows the manufacture of sintered compressed products such as wheels serrated, steel ball bearings for tools. These products require high strength and mechanical hardness and these properties are achieved since alloy additives increase the resistance quality of the tempering. The products are manufactured by means of a metallurgical compression of conventional powder, compression and hot sintering, hot isostatic compression, and sintering forging.
Dado que el polvo metálico producido es no oxidante e impide la oxidación puede mezclarse con otro polvo producido a partir de los metales sensibles a la oxidación. Esto permite la fabricación de un material compuesto con cualidades completamente nuevas.Since the metallic powder produced is not oxidizer and prevents oxidation can be mixed with another powder produced from oxidation sensitive metals. This allows the manufacture of a composite material with qualities completely new.
La presente invención se refiere por tanto también al uso del polvo metálico no oxidante, aleado, atomizado, de acuerdo con la reivindicación 1 para la fabricación de productos sinterizados, comprimidos, como por ejemplo ruedas dentadas, cojinetes de bolas, acero para herramientas, fabricados por medio de la compresión de polvo metalúrgico convencional, compresión y sinterización en caliente, compresión isostática en caliente, y forjado de sinterización.The present invention therefore relates also to the use of non-oxidizing, alloyed, atomized metal powder, according to claim 1 for the manufacture of products sintered, compressed, such as gear wheels, ball bearings, tool steel, manufactured by means of Conventional metallurgical powder compression, compression and hot sintering, hot isostatic compression, and sintering floor.
La presente invención se ilustrará también con ejemplos concretos que no deben, sin embargo, considerarse como limitativos del alcance de la protección de la invención en otro sentido que el definido en las reivindicaciones adjuntas.The present invention will also be illustrated with specific examples that should not, however, be considered as limiting the scope of protection of the invention in another meaning defined in the appended claims.
En el ejemplo siguiente, se obtuvo un polvo metálico no oxidante, aleado, de acuerdo con la invención en consonancia con el procedimiento descrito en la solicitud de patente sueca No. 9601482-4. En los experimentos se utilizó parafina como medio de atomización.In the following example, a powder was obtained non-oxidizing metal, alloy, according to the invention in consistent with the procedure described in the request for Swedish patent No. 9601482-4. In the experiments you He used paraffin as a means of atomization.
Se obtuvo un polvo metálico aleado con carburos metálicos en la capa de superficie con de un 8,0 a un 10 por ciento en peso de cromo, de 8,0 a un 10 por ciento de manganeso, de un 0,8 a 1,2 por ciento en peso de carbono y el resto hierro. El polvo obtenido es esférico y tiene una distribución granulométrica de entre 45 y 200 \mum.A metal powder alloyed with carbides was obtained metallic in the surface layer with 8.0 to 10 percent by weight of chromium, from 8.0 to 10 percent manganese, from 0.8 at 1.2 percent by weight carbon and the rest iron. Dust obtained is spherical and has a granulometric distribution of between 45 and 200 µm.
Claims (3)
entre 45 y 200 \mum.1. A non-oxidizing, alloyed, atomized metal powder based on carbide-bonded iron enriched iron in the surface layer, which has been carbonated with metals by means of a carbonized atomized medium selected from the group comprising paraffin , diesel oils, or other cyclic or acyclic hydrocarbons characterized in that in addition to iron and carbide-bound carbon, the dust particles comprise from 8.0 to 10% by weight of chromium, from 8.0 to 10% by weight of manganese, from 0.8 to 1.2% by weight of carbon, and the rest iron, and because the oxygen content is less than 200 ppm, and because the particles are spherical and have a particle size distribution of
between 45 and 200 µm.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9802682A SE521053C2 (en) | 1998-08-06 | 1998-08-06 | Use of an alloy non-oxidizing metal powder |
SE9802682 | 1998-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2310427T3 true ES2310427T3 (en) | 2009-01-01 |
Family
ID=20412209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99935265T Expired - Lifetime ES2310427T3 (en) | 1998-08-06 | 1999-07-19 | NON-OXIDATED METALLIC POWDER. |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP2163331A1 (en) |
AT (1) | ATE402773T1 (en) |
AU (1) | AU5077899A (en) |
DE (1) | DE69939230D1 (en) |
ES (1) | ES2310427T3 (en) |
SE (1) | SE521053C2 (en) |
WO (1) | WO2000007759A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100852497B1 (en) * | 2007-03-12 | 2008-08-18 | 한양대학교 산학협력단 | Fe based alloy having corrosion resistance and abrasion resistance and preparation method thereof |
US10618110B2 (en) * | 2010-02-15 | 2020-04-14 | Tenneco Inc. | Master alloy for producing sinter hardened steel parts and process for the production of sinter hardened parts |
JP6229277B2 (en) * | 2013-03-01 | 2017-11-15 | 日立化成株式会社 | Sintered alloy and method for producing the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2220673C3 (en) * | 1972-04-27 | 1979-10-04 | Bayerisches Leichtmetallwerk Graf Bluecher Von Wahlstatt Kg, 8000 Muenchen | Metallic sintered alloys, in particular sintered steel alloys |
JPS61276949A (en) * | 1985-05-29 | 1986-12-06 | Sumitomo Metal Ind Ltd | Manufacture of sintered parts |
ATE149392T1 (en) * | 1991-08-07 | 1997-03-15 | Erasteel Kloster Ab | POWDER METALLURGICALLY PRODUCED FAST-WORKING STEEL |
US5522914A (en) * | 1993-09-27 | 1996-06-04 | Crucible Materials Corporation | Sulfur-containing powder-metallurgy tool steel article |
SE9402672D0 (en) * | 1994-08-10 | 1994-08-10 | Hoeganaes Ab | Chromium containing materials having high tensile strength |
SE509049C2 (en) * | 1996-04-18 | 1998-11-30 | Rutger Larsson Konsult Ab | Process and plant for the production of atomized metal powder, metal powder and use of the metal powder |
US9302818B2 (en) * | 2011-11-22 | 2016-04-05 | Robert Beadles | Reusable envelope |
-
1998
- 1998-08-06 SE SE9802682A patent/SE521053C2/en not_active IP Right Cessation
-
1999
- 1999-07-19 ES ES99935265T patent/ES2310427T3/en not_active Expired - Lifetime
- 1999-07-19 AT AT99935265T patent/ATE402773T1/en not_active IP Right Cessation
- 1999-07-19 EP EP08153706A patent/EP2163331A1/en not_active Withdrawn
- 1999-07-19 DE DE69939230T patent/DE69939230D1/en not_active Expired - Lifetime
- 1999-07-19 WO PCT/SE1999/001293 patent/WO2000007759A1/en active Application Filing
- 1999-07-19 EP EP99935265A patent/EP1742753B1/en not_active Expired - Lifetime
- 1999-07-19 AU AU50778/99A patent/AU5077899A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2000007759A1 (en) | 2000-02-17 |
EP2163331A1 (en) | 2010-03-17 |
DE69939230D1 (en) | 2008-09-11 |
EP1742753A1 (en) | 2007-01-17 |
EP1742753B1 (en) | 2008-07-30 |
ATE402773T1 (en) | 2008-08-15 |
SE9802682D0 (en) | 1998-08-06 |
SE521053C2 (en) | 2003-09-23 |
SE9802682L (en) | 2000-02-07 |
AU5077899A (en) | 2000-02-28 |
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