Title:
METHOD FOR MANUFACTURING TUNGSTEN-MOLYBDENUM ALLOY
Document Type and Number:
WIPO Patent Application WO/2019/107816
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a tungsten-molybdenum alloy, comprising: (a) a mixing step of mixing a tungsten oxide (WO3) powder and a molybdenum oxide (MoO3) powder; (b) a stirring step of stirring the mixture having been mixed in step (a); (c-1) a first reduction step of reducing the mixture at a first temperature; (c-2) a second reduction step of reducing the first reduced product at a second temperature; (c-3) a third reduction step of reducing the second reduced product at the second temperature; (d) a molding step of manufacturing a molded product by putting the reduced metal powder into a mold; and (e) a sintering step of sintering the molded product having been manufactured in step (d), wherein the average particle size of the tungsten oxide powder and the molybdenum oxide powder is 5-40 μm, the first temperature is 480-620°C, the second temperature is 570-740°C, and the third temperature is 730-1,060°C.
Inventors:
KIM IN HO (KR)
CHO BONG WHI (KR)
KIM TAE WOOK (KR)
KIM SANG UK (KR)
CHO BONG WHI (KR)
KIM TAE WOOK (KR)
KIM SANG UK (KR)
Application Number:
PCT/KR2018/014143
Publication Date:
June 06, 2019
Filing Date:
November 16, 2018
Export Citation:
Assignee:
NATM CO LTD (KR)
International Classes:
B22F3/12; B22F9/22; C22C27/04
Foreign References:
| JP2010503765A | 2010-02-04 | |||
| JP2010503764A | 2010-02-04 | |||
| JP2016536469A | 2016-11-24 | |||
| KR100629253B1 | 2006-09-29 | |||
| JP2000001732A | 2000-01-07 |
Attorney, Agent or Firm:
FRIENDS INTERNATIONAL PATENT AND LAW FIRM (KR)
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