Title:
METHOD FOR SMELTING HIGH-TEMPERATURE ALLOY WITH ULTRAHIGH N CONTENT IN VIM FURNACE
Document Type and Number:
WIPO Patent Application WO/2022/218444
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for smelting a high-temperature alloy with an ultrahigh N content in a VIM furnace, and a high-temperature alloy with an ultrahigh N content. The VIM-furnace smelting method comprises a smelting step performed in a VIM furnace, and a casting step, wherein at a later stage of smelting, a nitrogen-containing substance is added to the VIM furnace to adjust the content of N. In the present invention, by comprehensively improving the raw materials, the smelting process, etc., the yield of N during a VIM-furnace smelting process is increased and accurate control over the content of N in the high-temperature alloy is achieved, such that a target content of nitrogen can be guaranteed, and an ideal product can thus be obtained.
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Inventors:
YANG XIAOLI (CN)
WANG LI (CN)
LEI YINGHUA (CN)
ZHANG ZHICHENG (CN)
LI LINSEN (CN)
CAO ZHENG (CN)
GAO SHOULEI (CN)
ZHANG XIAOLEI (CN)
WANG LI (CN)
LEI YINGHUA (CN)
ZHANG ZHICHENG (CN)
LI LINSEN (CN)
CAO ZHENG (CN)
GAO SHOULEI (CN)
ZHANG XIAOLEI (CN)
Application Number:
PCT/CN2022/095043
Publication Date:
October 20, 2022
Filing Date:
May 25, 2022
Export Citation:
Assignee:
DAYE SPECIAL STEEL CO LTD (CN)
International Classes:
C22C30/00; C22C1/02; C22C38/00
Foreign References:
CN113278834A | 2021-08-20 | |||
CN103173692A | 2013-06-26 | |||
CN103233174A | 2013-08-07 | |||
CN104593692A | 2015-05-06 | |||
US4421571A | 1983-12-20 |
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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