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1. WO1991000158 - PRODUCTION OF INGOTS FOR MICROCOMPOSITE MANUFACTURE BY PLASMA MELTING

Publication Number WO/1991/000158
Publication Date 10.01.1991
International Application No. PCT/US1990/003658
International Filing Date 25.06.1990
Chapter 2 Demand Filed 23.01.1991
IPC
B22D 11/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11Continuous casting of metals, i.e. casting in indefinite lengths
B22D 11/115 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11Continuous casting of metals, i.e. casting in indefinite lengths
10Supplying or treating molten metal
11Treating the molten metal
114by using agitating or vibrating means
115by using magnetic fields
C22B 9/22 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
9General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
16Remelting metals
22with heating by wave energy or particle radiation
CPC
B22D 11/00
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11Continuous casting of metals, i.e. casting in indefinite lengths
B22D 11/041
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11Continuous casting of metals, i.e. casting in indefinite lengths
04into open-ended moulds
041for vertical casting
B22D 11/115
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11Continuous casting of metals, i.e. casting in indefinite lengths
10Supplying or treating molten metal
11Treating the molten metal
114by using agitating or vibrating means
115by using magnetic fields
B22D 11/117
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
11Continuous casting of metals, i.e. casting in indefinite lengths
10Supplying or treating molten metal
11Treating the molten metal
116Refining the metal
117by treating with gases
C22B 9/226
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
9General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
16Remelting metals
22with heating by wave energy or particle radiation
226by electric discharge, e.g. plasma
Applicants
  • NRC, INC. [US/US]; 45 Industrial Place Newton, MA 02164, US
Inventors
  • BALLIETT, Robert, W.; US
  • LILLEY, John, D.; US
Agents
  • COHEN, Jerry ; Perkins, Smith & Cohen One Federal Street Boston, MA 02110, US
Priority Data
371,03726.06.1989US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PRODUCTION OF INGOTS FOR MICROCOMPOSITE MANUFACTURE BY PLASMA MELTING
(FR) PRODUCTION DE LINGOTS POUR LA FABRICATION DE MICRO-COMPOSITES PAR LA FUSION PLASMATIQUE
Abstract
(EN)
Ingots from the manufacture of deformation processed composites are formed by high energy melting of interspersed metal components at high input pressure, and high rate resolidification, to produce a dispersed structure containing fine particles (1-10 microns in diameter) of one component in a matrix of the other(s). D.C. transferred arc (20) plasma melting is used for the high energy melting and superheating of a feed stock billet (10) and of an ingot melt zone (72). Electromagnetic stirring is used in homogenization of the melt. The composite can be deformed mechanically to reduce particle thickness and elongate the particles and strengthen the composite as a whole.
(FR)
Les lingots provenant de la fabrication de composites obtenus par déformation sont formés par la fusion à haute énergie de composants de métaux entremêlés à une pression d'entrée élevée, et ayant un taux élevé de resolidification, pour produire une structure dispersée renfermant de fines particules (de 1 à 10 microns de diamètre) d'un composant dans une matrice d'un ou de plusieurs autres. La fusion du plasma par un arc de courant continu transféré (20) est utilisée pour la fusion à haute énergie et la surchauffe d'une charge d'alimentation de lingots et d'une zone de fusion des lingots (72). L'agitation électromagnétique est employée pour homogénéiser le bain de fusion. Le composite peut être déformé mécaniquement pour réduire l'épaisseur des particules et allonger ces dernières et pour globalement renforcer le composite.
Also published as
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