The present disclosure provides compositions comprising iron, about 0.01 to about 0.4% w/w of manganese; about 1.3 to about 1.9% w/w of chromium; about 0.1% w/w or less of nickel; about 1.2 to about 1.7% w/w of molybdenum; about 0.01 to about 0.4% w/w of niobium; about 0.01 to about 0.4% w/w of vanadium; about 1.5 to about 2% w/w of silicon; and about 0.01 to about 0.20% w/w of carbon. The present disclosure also provides methods of preparing a metal powder, comprising atomizing a composition described herein and methods of preparing a metal object, comprising subjecting metal powder described herein to metal binder jetting.
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
B22F 10/14 - Formation d’un corps vert par projection de liant sur un lit de poudre
B22F 10/64 - Traitement de pièces ou d'articles après leur formation par des moyens thermiques
The present disclosure provides compositions comprising iron, about 0.01 to about 0.4% w/w of manganese; about 1.3 to about 1.9% w/w of chromium; about 0.1% w/w or less of nickel; about 1.2 to about 1.7% w/w of molybdenum; about 0.01 to about 0.4% w/w of niobium; about 0.01 to about 0.4% w/w of vanadium; about 1.5 to about 2% w/w of silicon; and about 0.01 to about 0.20% w/w of carbon. The present disclosure also provides methods of preparing a metal powder, comprising atomizing a composition described herein and methods of preparing a metal object, comprising subjecting metal powder described herein to metal binder jetting.
B22F 1/05 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
B22F 10/14 - Formation d’un corps vert par projection de liant sur un lit de poudre
B22F 10/64 - Traitement de pièces ou d'articles après leur formation par des moyens thermiques
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
The present disclosure provides compositions comprising iron, about 0.01 to about 0.4% w/w of manganese; about 1.3 to about 1.9% w/w of chromium; about 0.1% w/w or less of nickel; about 1.2 to about 1.7% w/w of molybdenum; about 0.01 to about 0.4% w/w of niobium; about 0.01 to about 0.4% w/w of vanadium; about 1.5 to about 2% w/w of silicon; and about 0.01 to about 0.20% w/w of carbon. The present disclosure also provides methods of preparing a metal powder, comprising atomizing a composition described herein and methods of preparing a metal object, comprising subjecting metal powder described herein to metal binder jetting.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
B22F 10/14 - Formation d’un corps vert par projection de liant sur un lit de poudre
The disclosure provides iron-based metallurgical compositions comprising iron and alloying elements of about (0.01) to about (0.65) wt %, based on the weight of the composition, of carbon; about (1) to about (2.0) wt %, based on the weight of the composition, of molybdenum; about (0.25) to about (2.0) wt %, based on the weight of the composition, of manganese; about (0.25) to about (2.0) wt %, based on the weight of the composition, of silicon; and about (0.05) to about (0.6) wt %, based on the weight of the composition, of vanadium. In some embodiments, the iron-based metallurgical composition is a powder metallurgical composition.
The disclosure provides iron-based metallurgical compositions comprising iron and alloying elements of about (0.01) to about (0.65) wt%, based on the weight of the composition, of carbon; about (1) to about (2.0) wt%, based on the weight of the composition, of molybdenum; about (0.25) to about (2.0) wt%, based on the weight of the composition, of manganese; about (0.25) to about (2.0) wt%, based on the weight of the composition, of silicon; and about (0.05) to about (0.6) wt%, based on the weight of the composition, of vanadium. In some embodiments, the iron-based metallurgical composition is a powder metallurgical composition.
The disclosure provides iron-based metallurgical compositions comprising iron and alloying elements of about (0.01) to about (0.65) wt%, based on the weight of the composition, of carbon; about (1) to about (2.0) wt%, based on the weight of the composition, of molybdenum; about (0.25) to about (2.0) wt%, based on the weight of the composition, of manganese; about (0.25) to about (2.0) wt%, based on the weight of the composition, of silicon; and about (0.05) to about (0.6) wt%, based on the weight of the composition, of vanadium. In some embodiments, the iron-based metallurgical composition is a powder metallurgical composition.
B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
7.
Vanadium-containing powder metallurgical powders and methods of their use
Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof. These articles have improved mechanical properties.
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 27/02 - Alliages à base de vanadium, niobium ou tantale
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
B22F 3/16 - Compactage et frittage par des opérations successives ou répétées
B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
The present invention is directed to methods of preparing a bonded metallurgical powder composition comprising melting a binding agent and blending the melted binding agent with a metallurgical powder mixture, in the substantial absence of solvent, for a time sufficient to form the bonded metallurgical powder composition. Bonded metallurgical powder compositions prepared using these methods are also described, as well as compacted powder metallurgical parts prepared using them.
The present invention is directed to metallurgical powder compositions having improved lubricant properties. These compositions of the invention include at least 90 wt. % of an iron-based metallurgical powder; a Group 1 or Group 2 metal stearate; a first wax having a melting range of between about 80 and 100° C.; a second wax having a melting range of between about 80 and 90° C.; zinc phosphate; boric acid; acetic acid; phosphoric acid; and a binder. Methods of compacting the compositions, as well as compacted articles prepared using those methods, are also described.
The present invention is directed to metallurgical powder compositions having improved lubricant properties. These compositions of the invention include at least 90 wt.% of an iron- based metallurgical powder; a Group 1 or Group 2 metal stearate; a first wax having a melting range of between about 80 and 100 °C; a second wax having a melting range of between about 80 and 90 °C; inc phosphate; boric acid; acetic acid; phosphoric acid; and polyvinylpyrrolidone. Methods of compacting the compositions, as well as compacted articles prepared using those methods, are also described.
The present invention is directed to metallurgical powder compositions having improved lubricant properties. These compositions of the invention include at least 90 wt.% of an iron-based metallurgical powder; a Group 1 metal stearate, a Group 2 metal stearate, or lithium bisstearamide; a first wax having a melting range of between about 80 and 100 .degree.C; a second wax having a melting range of between about 80 and 90 .degree.C; zinc phosphate; boric acid; acetic acid; phosphoric acid; and polyvinylpyrrolidone. Methods of compacting the compositions, as well as compacted articles prepared using those methods, are also described.
Iron-based metallurgical powders comprising (i) at least 90%, based on the weight of the metallurgical powder composition, of an iron-based metallurgical powder and (ii) at least one additive that is a prealloy comprising iron, vanadium and silicon, wherein the total vanadium content of the composition is about 0.05% to about 1.0% by weight of the composition, are described, as well as compacted articles made thereof. These articles have improved mechanical properties.
Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof These articles have improved mechanical properties.
Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof. These articles have improved mechanical properties.
Provided are methods of preparing high density compacted components that increase that lubricity of metallurgical powder compositions while reducing the overall organic content of the compacted component. Method of preparing high density compacted components having a high density include the steps of providing a metallurgical powder composition having particles at least partially coated with a metal phosphate layer, and compacting the metallurgical powder composition in the die at a pressure of at least about 5 tsi. The metallurgical powder composition comprises a base-metal powder, optional alloying powders, and a particulate internal lubricant. The metal phosphate at least partially coats the base-metal powder, the optional alloying powder, or both. The metal phosphate coating increases the lubricity of metallurgical powders without the need for large quantities of organic material, e.g., lubricants and binders.
Iron-based powder metallurgical compositions including both iron-copper prealloy and copper powder are described. These compositions, when compacted and sintered, result in compacts having good dimensional consistency.
Iron-based powder metallurgical compositions including both iron-copper prealloy and copper powder are described. These compositions, when compacted and sintered, result in compacts having good dimensional consistency.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
The present invention is directed to improved compaction techniques for use in powder metallurgical applications using lower temperatures and pressures than are traditionally used in the field.
The present invention is directed to improved compaction techniques for use in powder metallurgical applications using lower temperatures and pressures than are traditionally used in the field.
The present invention is directed to electrically conductive compacted metal parts fabricated using powder metallurgy methods. The iron-based powders of the invention are coated with magnetic or pre-magnetic materials.
B22F 1/02 - Traitement particulier des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre, d'améliorer leurs propriétés; Poudres métalliques en soi, p.ex. mélanges de particules de compositions différentes comportant un enrobage des particules
B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
B22F 3/24 - Traitement ultérieur des pièces ou objets
H01F 1/24 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en matériaux inorganiques caractérisés par leur coercivité en matériaux magnétiques doux métaux ou alliages sous forme de particules, p. ex. de poudre comprimées, frittées ou agglomérées les particules étant isolées
H01F 1/33 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en matériaux inorganiques caractérisés par leur coercivité en matériaux magnétiques doux mélanges de particules métalliques ou non métalliquesAimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en matériaux inorganiques caractérisés par leur coercivité en matériaux magnétiques doux particules métalliques ayant un revêtement d'oxyde
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
30.
METHODS FOR PREPARING METALLURGICAL POWDER COMPOSITIONS AND COMPACTED ARTICLES MADE FROM THE SAME
Provided are methods of preparing high density compacted components that increase that lubricity of metallurgical powder compositions while reducing the overall organic content of the compacted component. Method of preparing high density compacted components having a high density include the steps of providing a metallurgical powder composition having particles at least partially coated with a metal phosphate layer, and compacting the metallurgical powder composition in the die at a pressure of at least about 5 tsi. The metallurgical powder composition comprises a base- metal powder, optional alloying powders, and a particulate internal lubricant. The metal phosphate at least partially coats the base-metal powder, the optional alloying powder, or both. The metal phosphate coating increases the lubricity of metallurgical powders without the need for large quantities of organic material, e.g., lubricants and binders.
