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Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
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Publication date
Application filed by Mitsui Engineering and Shipbuilding Co LtdfiledCriticalMitsui Engineering and Shipbuilding Co Ltd
Priority to JP62197431ApriorityCriticalpatent/JPS6442517A/en
Publication of JPS6442517ApublicationCriticalpatent/JPS6442517A/en
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/00—Technologies related to metal processing
Y02P10/20—Recycling
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Treatment Of Steel In Its Molten State
(AREA)
Abstract
PURPOSE:To manufacture a high-cleanliness alloy remarkably reduced in nitrogen content, by applying denitriding slag in which respective contents of Al2O3, Li2O, titanium oxide, etc., are specified. CONSTITUTION:Slag containing, by weight, 20-70% Al2O3, 1.0-50% Li2O, and 10-80% titanium oxide and/or ZrO2 is prepared. If necessary, CaF2 and/or CaCl2 is further added by <=about 30% to the above Al2O3, Li2O, and titanium oxide and/or ZrO2 to carry out component regulation. The above slag is suitable for carrying out the denitriding treatment of a molten Fe-base, Co-base, or Ni-base alloy.
JP62197431A1987-08-071987-08-07Method for denitriding, desulfurizing, and deoxidizing fe-base, co-base, or ni-base alloy
PendingJPS6442517A
(en)
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