RU2016145399A - Способ создания порошка кермета или цементированного карбида - Google Patents
Способ создания порошка кермета или цементированного карбида Download PDFInfo
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
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- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
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- B33Y10/00—Processes of additive manufacturing
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- B33Y70/00—Materials specially adapted for additive manufacturing
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- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
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- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
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- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/10—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
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- C22C29/16—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on nitrides
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Claims (32)
1. Способ создания порошка из плотных и сферически сформированных гранул кермета или цементированного карбида, который содержит стадии:
(a) формирования сферически сформированных гранул, содержащих металл, твердые составляющие и органическое связующее вещество;
(b) смешивание сферически сформированных гранул с порошком ингибитора спекания для формирования смеси сферически сформированных гранул и порошка ингибитора спекания;
(c) загрузку смеси сферически сформированных гранул и порошка ингибитора спекания в камеру печи;
(d) термическую обработку смеси, полученной на стадии (b), в камере печи при температуре спекания для удаления органического связующего вещества из сферически сформированных гранул и для спекания твердых составляющих частей с металлом в каждой сферически сформированной грануле, и тем самым для формирования смеси спеченных плотных сферически сформированных гранул и порошка ингибитора спекания;
(e) выгрузку смеси спеченных плотных сферически сформированных гранул и порошка ингибитора спекания из камеры печи; и
(f) отделение порошка ингибитора спекания от спеченных плотных сферически сформированных гранул, посредством чего формируют порошок из гранул плотного и сферически сформированного кермета или цементированного карбида.
2. Способ по п. 1, в котором пористость внутри каждой плотной сферически сформированной гранулы кермета или цементированного карбида составляет менее чем 5 об.%.
3. Способ по п. 1 или 2, в котором размер спеченных плотных сферически сформированных гранул из порошка кермета или цементированного карбида составляет от 1 до 500 мкм.
4. Способ по любому из пп. 1 и 2, в котором термическая обработка в печной камере выполняется при температуре спекания выше температуры солидуса металла в сферически сформированных гранулах.
5. Способ по п. 4, в котором термическая обработка в печной камере выполняется при температуре спекания, которая превышает температуру солидуса металла в сферически сформированных гранулах на величину от 30°C до 100°C.
6. Способ по любому из п.п.1 -2, в котором порошок ингибитора содержит оксид.
7. Способ по любому из пп. 1-2, в котором порошок ингибитора содержит углерод.
8. Способ по любому из пп. 1-2, в котором порошок ингибитора отделяется от спеченных плотных сферически сформированных гранул посредством физических способов, таких как просеивание, воздушная сепарация, гидроциклон, флотация и/или псевдоожижение.
9. Способ по п. 7, в котором порошок ингибитора отделяется от спеченных плотных сферически сформированных гранул посредством термохимических способов, использующих газ при повышенной температуре.
10. Способ по п. 9, в котором термохимический способ выполняется во вращающейся трубчатой печи или в печи с кипящим слоем.
11. Порошок кермета или цементированного карбида, изготовленный по любому из пп. 1-10.
12. Применение порошка по п. 11 в аддитивном производстве.
13. Применение порошка по п. 11 в способе горячего изостатического прессования.
14. Способ производства компонента, содержащий следующие стадии:
(a) обеспечение порошка по п. 11;
(b) обеспечение формы;
(c) заполнение формы порошком;
(d) удаление воздуха из формы;
(e) герметизация формы;
(f) подвергание этой формы горячему изостатическому прессованию (HIP) при заданной температуре, заданном давлении и в течение заданного времени так, чтобы порошок по п. 11 связался металлургически и сформировал твердое тело;
отличающийся тем, что
форму изготавливают из сплава циркония или сплава титана.
15. Способ по п. 14, в котором порошок по п. 11 имеет непрерывное распределение размера частиц в диапазоне от 1 до 500 мкм.
16. Способ по п. 14 или по п. 15, в котором предопределенная температура составляет более 900°C.
17. Способ по любому из пп. 14 и 15, в котором предопределенное давление составляет более 500 бар.
18. Способ по любому из пп. 14 и 15, который используется для производства цементированного карбида или кермета.
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Application Number | Priority Date | Filing Date | Title |
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EP14165842 | 2014-04-24 | ||
EP14165842.7 | 2014-04-24 | ||
PCT/EP2015/058790 WO2015162206A2 (en) | 2014-04-24 | 2015-04-23 | A method of making cermet or cemented carbide powder |
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RU2019113090A Division RU2019113090A (ru) | 2014-04-24 | 2015-04-23 | Способ создания порошка кермета или цементированного карбида |
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RU2016145399A true RU2016145399A (ru) | 2018-05-24 |
RU2016145399A3 RU2016145399A3 (ru) | 2018-11-02 |
RU2687332C2 RU2687332C2 (ru) | 2019-05-13 |
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RU2019113090A RU2019113090A (ru) | 2014-04-24 | 2015-04-23 | Способ создания порошка кермета или цементированного карбида |
RU2016145399A RU2687332C2 (ru) | 2014-04-24 | 2015-04-23 | Способ создания порошка кермета или цементированного карбида |
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US (3) | US20170072469A1 (ru) |
EP (1) | EP3134222B1 (ru) |
JP (1) | JP6590833B2 (ru) |
KR (1) | KR102297842B1 (ru) |
CN (1) | CN106573298B (ru) |
BR (1) | BR112016024706A2 (ru) |
RU (2) | RU2019113090A (ru) |
WO (1) | WO2015162206A2 (ru) |
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US10144065B2 (en) | 2015-01-07 | 2018-12-04 | Kennametal Inc. | Methods of making sintered articles |
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- 2015-04-23 KR KR1020167029475A patent/KR102297842B1/ko active IP Right Grant
- 2015-04-23 RU RU2016145399A patent/RU2687332C2/ru not_active IP Right Cessation
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JP6590833B2 (ja) | 2019-10-16 |
RU2687332C2 (ru) | 2019-05-13 |
CN106573298A (zh) | 2017-04-19 |
KR102297842B1 (ko) | 2021-09-02 |
US20220288683A1 (en) | 2022-09-15 |
CN106573298B (zh) | 2019-03-05 |
BR112016024706A2 (pt) | 2017-08-15 |
US20200360995A1 (en) | 2020-11-19 |
EP3134222B1 (en) | 2018-05-23 |
JP2017519101A (ja) | 2017-07-13 |
WO2015162206A2 (en) | 2015-10-29 |
EP3134222A2 (en) | 2017-03-01 |
KR20160146729A (ko) | 2016-12-21 |
WO2015162206A3 (en) | 2015-12-17 |
RU2016145399A3 (ru) | 2018-11-02 |
US20170072469A1 (en) | 2017-03-16 |
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