METHOD OF PREPARING OF TUNGSTEN CARBIDE DISPERSED POWDER Russian patent published in 1995 - IPC

Abstract RU 2028273 C1

FIELD: solid alloys. SUBSTANCE: metallic tungsten powder with specific surface 2 m2/g (not less) is put into molybdenum combustion boat, heated up to 840-1100 C and kept in the flow of methane-hydrogen gaseous mixture containing 0.4-3.2 vol. % methane. At low temperature of carbidizing methane content in the mixture is high, and at high temperature - low. Specific surface of tungsten carbide is 2,0-8,0 m2/g, powder particle size is 0.05-0.20 mcm, content of free carbon is 0.1 wt.-%, not more. EFFECT: improved method of tungsten carbide powder preparing. 2 cl, 1 tbl

Similar patents RU2028273C1

Title Year Author Number
METHOD TO PRODUCE SINTERED SOLID ALLOYS BASED ON TUNGSTEN CARBIDE 1995
  • Bondarenko Vladimir Petrovich[Ua]
  • Pavlotskaja Ehlla Grigor'Evna[Ua]
  • Moshkun Valentina Fedorovna[Ua]
RU2079564C1
METHOD OF TREATING WASTE OF TUNGSTEN AND COBALT HARD-FACING ALLOYS 1991
  • Bondarenko Vladimir Petrovich[Ua]
  • Pavlotskaja Ehlla Grigor'Evna[Ua]
  • Martynova Ljudmila Mikhajlovna[Ua]
  • Tsaljuk Raisa Khaimovna[Ua]
  • Moshkun Valentina Fedorovna[Ua]
RU2026158C1
METHOD OF SINTERING OF HARD-METAL ALLOYS 0
  • Bondarenko Vladimir Petrovich
  • Pavlotskaya Ella Grigorevna
  • Tsalyuk Raisa Khaimovna
  • Kurmanov Nikolaj Muazinovich
SU1822381A3
METHOD OF POWDER RECEIVING ON BASIS OF TUNGSTEN CARBIDE 2007
  • Blagoveshchenskij Jurij Vjacheslavovich
  • Alekseev Nikolaj Vasil'Evich
  • Samokhin Andrej Vladimirovich
  • Mel'Nik Jurij Ivanovich
  • Tsvetkov Jurij Vladimirovich
  • Kornev Sergej Aleksandrovich
RU2349424C1
METHOD FOR PRODUCING TUNGSTEN CARBIDE NANOPOWDER 2016
  • Drozdov Evgenij Aleksandrovich
  • Kuzmichev Evgenij Nikolaevich
  • Balakhonov Denis Igorevich
RU2669676C2
SOLVENT OF CARBON FOR SYNTHESIS OF DIAMOND 1994
  • Borimskij Aleksandr Ivanovich[Ua]
  • Nagornyj Petr Arsen'Evich[Ua]
RU2073641C1
METHOD FOR OBTAINING NANODISPERSE POWDERS OF TUNGSTEN AND TITANIUM CARBIDES BY MEANS OF SHS METHOD 2012
  • Polubojarov Vladimir Aleksandrovich
  • Mali Vjacheslav Iosifovich
  • Korotaeva Zoja Alekseevna
  • Zhdanok Aleksandr Aleksandrovich
  • Pauli Irina Anatol'Evna
  • Stepanova Natal'Ja Vladimirovna
RU2508249C1
METHOD OF PRODUCING CARBIDE POWDER 2016
  • Leontev Leopold Igorevich
  • Lisin Vyacheslav Lvovich
  • Petrova Sofya Aleksandrovna
  • Kostylev Viktor Alekseevich
  • Varaksin Aleksandr Vladimirovich
RU2639797C1
SOLVENT FOR SYNTHESIS OF THERMOSTABLE MONOCRYSTALLINE DIAMONDS 1994
  • Borimskij A.I.
  • Nagornyj P.A.
RU2061654C1
METHOD OF PRODUCING FINE TUNGSTEN CARBIDE OR TUNGSTEN AND COBALT CARBIDE MIXTURE 2002
  • Ermilov A.G.
  • Rakova N.N.
  • Bashurov Ju.P.
  • Safonov V.V.
RU2207320C1

RU 2 028 273 C1

Authors

Bondarenko Vladimir Petrovich[Ua]

Uvarova Irina Vladimirovna[Ua]

Pavlotskaja Ehlla Grigor'Evna[Ua]

Petukhov Aleksandr Sergeevich[Ua]

Martynova Ljudmila Mikhajlovna[Ua]

Moshkun Valentina Fedorovna[Ua]

Dates

1995-02-09Published

1991-07-03Filed