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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
C22C33/0207—Using a mixture of prealloyed powders or a master alloy
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Powder Metallurgy
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Abstract
Mejoras introducidas en la fabricación de polvo de hierro para obtener cuerpos de hierro sinterizados caracterizadas porque a un polvo de hierro apropiado para la fabricación de cuerpos de hierro sinterizados se le mezcla una adición de un polvo de hierro análogo el cual, sin embargo, ha sido sometido a un tratamiento térmico con un gas que cede nitrógeno, por ejemplo, amoníaco.
ES0251467A1958-09-011959-08-14Mejoras introducidas en la fabricaciën de polvo de hierro para obtener cuerpos de hierro sinterizados
ExpiredES251467A1
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