RU2020115867A - Износостойкий слой - Google Patents

Износостойкий слой Download PDF

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RU2020115867A
RU2020115867A RU2020115867A RU2020115867A RU2020115867A RU 2020115867 A RU2020115867 A RU 2020115867A RU 2020115867 A RU2020115867 A RU 2020115867A RU 2020115867 A RU2020115867 A RU 2020115867A RU 2020115867 A RU2020115867 A RU 2020115867A
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wear
particles
mode
resistant
mixture
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RU2020115867A
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RU2773177C2 (ru
RU2020115867A3 (ru
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Вэй ЛЮ
Чжунмин ВАН
Эндрю БЭЛЛ
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ЭРЛИКОН МЕТКО (ЮЭс) ИНК.
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
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    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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    • B22F7/00Manufacture 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
    • B22F7/02Manufacture 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 of composite layers
    • B22F7/04Manufacture 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 of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • B22F2007/042Manufacture 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 of composite layers with one or more layers not made from powder, e.g. made from solid metal characterised by the layer forming method
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Claims (18)

1. Смесь для формирования износостойкого слоя (10, 20, 22, 60, 102) на подложке (13), смесь содержит частицы первого типа износостойких частиц (12) и частицы второго типа износостойких частиц (14), и связующее (13) износостойкого слоя для связывания первых и вторых износостойких частиц в износостойком слое (10, 20, 22, 60, 102), когда он формируется, причем распределения размеров износостойких частиц для первого (12) и второго (14) типов износостойких частиц имеют первую моду, соответственно, вторую моду, первый тип частиц (12) соотносится с первой модой и второй тип частиц (14) соотносится со второй модой, при этом количество NS первых износостойких частиц, соотносимых с первой модой, больше, чем количество NL вторых износостойких частиц, соотносимых со второй модой, причем вторая мода больше, чем первая мода.
2. Смесь по п.1, при этом смесь имеет форму порошка (71).
3. Смесь по любому из предыдущих пунктов, в которой количество NL вторых частиц, соотносимых со второй модой, меньше 30%, в частности, находится в пределах между 5% и 30%, предпочтительно, между 15% и 30%, в частности, между 15% и 25% от общего количества NS+NL износостойких частиц, где количество NS первых частиц, соотносимых с первой модой, больше 70%, в частности, находится в пределах между 70% и 95%, предпочтительно, между 70% и 85%, в частности, между 75% и 85% от общего количества NS+NL износостойких частиц.
4. Смесь по любому из предыдущих пунктов, в которой вторая моде больше, чем в два раза превышает, в частности, в три раза превышает, в частности в четыре раза превышает первую моду.
5. Смесь по любому из предыдущих пунктов, в которой медианный размер D50S первых износостойких частиц (D50) больше, чем в два раза превышает медианный размер D50L вторых износостойких частиц, в частности, в три раза превышает, в частности, в четыре раза превышает медианный размер вторых частиц второй моды.
6. Смесь по любому из предыдущих пунктов, в которой первые и вторые износостойкие частицы имеют размер в диапазоне от 10 мкм до 1,2 мм или размер в диапазоне от 10 мкм до 1 мм, или размер в диапазоне от 10 мкм до 420 мкм, в частности, размер в диапазоне от 10 мкм до 350 мкм, предпочтительно, размер в диапазоне от 10 мкм до 200 мкм, в частности, размер в диапазоне от 10 мкм до 50 мкм.
7. Смесь по любому из предыдущих пунктов, в которой первые и/или вторые износостойкие частицы содержат, по меньшей мере, один материал из карбида вольфрама, эвтектической смеси карбида дивольфрама (W2C) и карбида вольфрама (WC), натурального алмаза, инкапсулированного алмазного порошка, измельченных поликристаллических алмазных компактов, карбида, нитрида, оксида переходного металл, округлых литых карбидов, остроугольных литых карбидов, цементированных гранул карбида вольфрама, цементированного карбида вольфрама, литого карбида вольфрама и карбидов моновольфрама.
8. Смесь по любому из предыдущих пунктов, в которой связующее износостойкого слоя (13) содержит металлический связующий материал.
9. Смесь по п.8, в которой металлический связующий материал содержит, по меньшей мере, один металл из меди, олова, серебра, кобальта, никеля, бора, кадмия, марганца, цинка, железа, хрома, висмута, кремния или их сплава.
10. Смесь по любому из предыдущих пунктов, в которой смесь содержит 35% - 75%, в особенности, 50% - 70%, предпочтительно, 35% - 60%, в частности, 35% - 50% масс первых и вторых износостойких частиц, и 25% - 65% в особенности 30% - 50%, предпочтительно, 40% - 65%, в частности, 50% - 65% масс связующего износостойкого слоя.
11. Смесь по любому из предыдущих пунктов, в которой смесь содержит 30%-50% масс связующего износостойкого слоя (13), 10%-30% масс порошка литого вольфрама в первом диапазоне размеров и 30%-50% масс порошка карбида вольфрама во втором диапазоне размеров.
12. Износостойкий слой на подложке, причем износостойкий слой (10, 20, 22, 60, 102) содержит: первый (12) и второй (14) типы износостойких частиц, связанные вместе с помощью связующего износостойкого слоя (13), где распределения размеров износостойких частиц для первого (12) и второго (14) типов износостойких частиц имеет первую моду, соответственно, вторую моду, первый тип частиц (12) соотносится с первой модой и второй тип частиц (14) соотносится со второй модой, где количество NS износостойких частиц первого типа (12) больше, чем количество NL износостойких частиц второго типа (14), и где вторая мода больше, чем первая мода.
13. Износостойкий слой по п. 12, в котором износостойкий слой (10, 20, 22, 60, 102) получают с использованием смеси по любому из пп. 1-11.
14. Способ формирования износостойкого слоя (10, 20, 22, 60, 102) на подложке (50, 72) с использованием смеси по любому из пп. 1-11, содержащий стадии:
нанесения смеси на подложку (50, 72), и
нагрева смеси первых и вторых износостойких частиц и связующего (13) износостойкого слоя для формирования износостойкого слоя.
15. Способ по п. 14, в котором связующее износостойкого слоя (13) содержит металлический связующий материал, причем способ включает плавление металлического связующего материала с образованием монолитной матрицы металлического связующего материала, и способ дополнительно включает плавление металлического материала, так что металлический материал проникает в первые и/или вторые износостойкие частицы.
16. Способ по любому из пп. 14 или 15, в котором способ дополнительно включает нагрев смеси, при этом нагревают первые и вторые износостойкие частицы и связующее (13) износостойкого слоя, в частности, включает нагрев смеси выше температуры адгезии подложки.
RU2020115867A 2017-10-31 2018-10-31 Износостойкий слой RU2773177C2 (ru)

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