Title:
窒素含有金属合金を精製するための方法
Document Type and Number:
Japanese Patent JP7219280
Kind Code:
B2
Abstract:
A process for refining a nitrogen-containing metal alloy using arc remelting of a consumable electrode in a furnace, comprising: providing a consumable electrode of the metal alloy; providing a second electrode; providing a controlled atmosphere within the furnace; striking an arc between the consumable electrode and the second electrode to melt the consumable electrode and thereby form a molten metal alloy pool; maintaining the arc between the consumable electrode and the molten metal alloy pool; delivering the molten metal alloy into a mould and casting an ingot of refined metal alloy, wherein providing the controlled atmosphere comprises flowing Ar gas through the furnace at an Ar gas pressure of 1-500 Pa.
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Inventors:
Walden, Bettil
Application Number:
JP2020533825A
Publication Date:
February 07, 2023
Filing Date:
December 19, 2018
Export Citation:
Assignee:
Sandvik Intellectual Property Actie Volag
International Classes:
C22B9/20; C22B23/06
Domestic Patent References:
| JP63303016A | ||||
| JP53046411A | ||||
| JP2000273556A | ||||
| JP9501736A |
Foreign References:
| US5930284 | ||||
| US4007770 | ||||
| US4578795 |
Attorney, Agent or Firm:
Sonoda & Kobayashi Patent Attorneys Corporation
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