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Patent Searching and Data


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 (110-2502, YCT Apt.210, Gwangjang-ro, Baebang-eup,Asan-si, Chungcheongnam-do, 31471, KR)
CHO, Bong Whi (3027-5, Beomgol-ro 98beon-gilUijeongbu-si, Gyeonggi-do, 11625, KR)
KIM, Tae Wook (202-1102, 2-danji111, Buldang 19-ro, Seobuk-gu,Cheonan-si, Chungcheongnam-do, 31156, KR)
KIM, Sang Uk (3024, Seonghwan 15-gil Seonghwan-eup, Seobuk-gu,Cheonan-si, Chungcheongnam-do, 31014, KR)
Application Number:
KR2018/014143
Publication Date:
June 06, 2019
Filing Date:
November 16, 2018
Export Citation:
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Assignee:
NATM CO.,LTD (172-24, Yeongok-gil Ipjang-myeon, Seobuk-gu,Cheonan-si, Chungcheongnam-do, 31027, KR)
International Classes:
B22F3/12; B22F9/22; C22C27/04
Foreign References:
JP2010503765A2010-02-04
JP2010503764A2010-02-04
JP2016536469A2016-11-24
KR100629253B12006-09-29
JP2000001732A2000-01-07
Attorney, Agent or Firm:
FRIENDS INTERNATIONAL PATENT AND LAW FIRM (4, Eonnam 5-gilSeocho-gu, Seoul, 06778, KR)
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