RU2015114083A - Формованные абразивные частицы, способы получения и абразивные изделия, включающие их - Google Patents
Формованные абразивные частицы, способы получения и абразивные изделия, включающие их Download PDFInfo
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- B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
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Abstract
1. Способ получения абразивных частиц, включающий:обеспечение жидкого раствора, включающего неколлоидные твердые частицы и жидкое связующее, где, по крайней мере, некоторые неколлоидные твердые частицы включают, по крайней мере, одно из: альфа-глинозем или прекурсор альфа-глинозема, и где неколлоидные твердые частицы включают, по крайней мере, 30 процентов от объема жидкого раствора;формирование, по крайней мере, части жидкого раствора в формованные тела, контактирующие с субстратом, где формованные тела сформированы по существу согласно предопределенной форме;по крайней мере, частичное высушивание формованных тел для обеспечения формованных абразивных частиц прекурсоров;отделение, по крайней мере, части формованных абразивных частиц прекурсоров от субстрата; ипреобразование, по крайней мере, части формованных абразивных частиц прекурсоров в формованные абразивные частицы, где формованные абразивные частицы включают альфа-глинозем, где альфа-глинозем имеет средний размер кристаллического зерна от 0,8 до 8 микронов, где альфа-глинозем имеет объемную плотность, которая составляет, по крайней мере, 92 процента от истинной плотности, и где каждая из формованных абразивных частиц имеет соответствующую поверхность, включающую множество сторон и, по крайней мере, четыре вершины.2. Способ по п. 1, где субстрат имеет впадины на поверхности, и где указанное формирование жидкого раствора в формованные абразивные частицы прекурсоры, связывающиеся с субстратом, включает направление жидкого раствора, по крайней мере, в часть впадин.3. Способ по п. 1, где указанное формирование жидкого раствора включает направление жидкого раствора через фильтр на
Claims (25)
1. Способ получения абразивных частиц, включающий:
обеспечение жидкого раствора, включающего неколлоидные твердые частицы и жидкое связующее, где, по крайней мере, некоторые неколлоидные твердые частицы включают, по крайней мере, одно из: альфа-глинозем или прекурсор альфа-глинозема, и где неколлоидные твердые частицы включают, по крайней мере, 30 процентов от объема жидкого раствора;
формирование, по крайней мере, части жидкого раствора в формованные тела, контактирующие с субстратом, где формованные тела сформированы по существу согласно предопределенной форме;
по крайней мере, частичное высушивание формованных тел для обеспечения формованных абразивных частиц прекурсоров;
отделение, по крайней мере, части формованных абразивных частиц прекурсоров от субстрата; и
преобразование, по крайней мере, части формованных абразивных частиц прекурсоров в формованные абразивные частицы, где формованные абразивные частицы включают альфа-глинозем, где альфа-глинозем имеет средний размер кристаллического зерна от 0,8 до 8 микронов, где альфа-глинозем имеет объемную плотность, которая составляет, по крайней мере, 92 процента от истинной плотности, и где каждая из формованных абразивных частиц имеет соответствующую поверхность, включающую множество сторон и, по крайней мере, четыре вершины.
2. Способ по п. 1, где субстрат имеет впадины на поверхности, и где указанное формирование жидкого раствора в формованные абразивные частицы прекурсоры, связывающиеся с субстратом, включает направление жидкого раствора, по крайней мере, в часть впадин.
3. Способ по п. 1, где указанное формирование жидкого раствора включает направление жидкого раствора через фильтр на субстрат.
4. Способ по п. 1, где указанное преобразование, по крайней мере, части формованных абразивных частиц прекурсоров в формованные абразивные частицы включает:
спекание формованных абразивных частиц прекурсоров для обеспечения формованных абразивных частиц.
5. Способ по п. 1, где указанное преобразование, по крайней мере, части формованных абразивных частиц прекурсоров в формованные абразивные частицы включает:
обжиг формованных абразивных частиц прекурсоров для обеспечения обожженных формованных абразивных частиц прекурсоров; и
спекание обожженных формованных абразивных частиц прекурсоров для обеспечения формованных абразивных частиц.
6. Способ по п. 1, где указанное преобразование, по крайней мере, части формованных абразивных частиц прекурсоров в формованные абразивные частицы включает:
пропитку обожженных формованных абразивных частиц прекурсоров раствором из соли металла, чтобы обеспечить пропитанные обожженные формованные абразивные частицы прекурсоры; и
спекание пропитанных обожженных формованных абразивных частиц прекурсоров для обеспечения формованных абразивных частиц.
7. Способ по п. 1, где указанное преобразование, по крайней мере, части формованных абразивных частиц прекурсоров в формованные абразивные частицы включает:
обжиг формованных абразивных частиц прекурсоров для обеспечения обожженных формованных абразивных частиц прекурсоров;
пропитку обожженных формованных абразивных частиц прекурсоров раствором из соли металла, чтобы обеспечить пропитанные обожженные формованные абразивные частицы прекурсоры; и
спекание пропитанных обожженных формованных абразивных частиц прекурсоров для обеспечения формованных абразивных частиц.
8. Способ по п. 1, где неколлоидные частицы прекурсоры альфа-глинозема включают порошок оксида алюминия.
9. Способ по п. 1, где неколлоидные частицы прекурсоры альфа-глинозема включают измельченные частицы алюминия тригидрата.
10. Способ по п. 1, где неколлоидные частицы прекурсоры альфа-глинозема содержат, на эквивалентной основе, 0,03-0,25 процентов оксида натрия на основе общей массы формованных абразивных частиц прекурсоров.
11. Способ по п. 1, где неколлоидные частицы прекурсоры альфа-глинозема имеют средний диаметр частицы, по крайней мере, 0,2 микронов.
12. Способ по п. 1, где жидкий раствор дополнительно включает сгуститель.
13. Способ по п. 12, где сгуститель включает коллоидный бемит.
14. Способ по п. 1, где неколлоидные частицы прекурсоры альфа-глинозема включают, по крайней мере, 40 объемных процентов жидкого раствора.
15. Формованные абразивные частицы, изготовленные согласно способу по п. 1.
16. Абразивное изделие, включающее формованные абразивные частицы по п. 15, удерживаемые в связующем веществе, где формованные абразивные частицы включают альфа-глинозем, где альфа-глинозем имеет средний размер кристаллического зерна от 0,8 до 8 микронов, где альфа-глинозем имеет очевидную плотность, которая составляет, по крайней мере, 92 процента от истинной плотности, и где формованные абразивные частицы соответствуют предопределенной номинальной форме.
17. Абразивное изделие по п. 16, где абразивное изделие дополнительно включает: основание, абразивный слой, находящийся в контакте с основной поверхностью основания, где абразивный слой включает связующее вещество и формованные абразивные частицы.
18. Абразивное изделие по п. 16, где абразивное изделие дополнительно включает упругие открытые волокна.
19. Абразивное изделие по п. 16, где абразивное изделие включает круг из абразивного материала со связующим.
20. Способ шлифования заготовки, включающий контакт, по крайней мере, одной формованной абразивной частицы, содержащейся в абразивном изделии по п. 16, с заготовкой, и взаимное перемещение, по крайней мере, или абразивного изделия или заготовки, для шлифования, по крайней мере, части заготовки.
21. Формованные абразивные частицы, включающие альфа-глинозем, где альфа-глинозем имеет средний размер кристаллического зерна 0,8 к 8 микронам, где альфа-глинозем имеет очевидную плотность, которая составляет, по крайней мере, 92 процента от истинной плотности, где каждая из формованных абразивных частиц имеет соответствующую поверхность, включающую несколько сторон и, по крайней мере, четыре вершины, и где формованные абразивные частицы соответствуют предопределенной номинальной форме.
22. Формованные абразивные частицы по п. 21, где каждая соответствующая поверхность включает, по крайней мере, четыре края, где средняя ширина каждого края варьируется приблизительно на 5-20 микронов и отношение средней ширины каждого края к среднему размеру кристаллического зерна в диапазоне от 1 до 25.
23. Формованные абразивные частицы по п. 21, где формованные абразивные частицы содержат 0,03-0,25 процентов оксида натрия на основе общей массы формованных абразивных частиц.
24. Абразивное изделие, включающее формованные абразивные частицы, удерживаемые на связующем веществе, где формованные абразивные частицы включают альфа-глинозем, где альфа-глинозем имеет средний размер кристаллического зерна от 0,8 до 8 микронов, где альфа-глинозем имеет очевидную плотность, которая составляет, по крайней мере, 92 процента от истинной плотности, и где формованные абразивные частицы соответствуют предопределенной номинальной форме.
25. Способ шлифования заготовки, включающий контакт с абразивным изделием по п. 24 с заготовкой, и взаимное перемещение или абразивного изделия или заготовки для шлифования, по крайней мере, части заготовки.
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- 2013-10-17 US US14/439,606 patent/US10696883B2/en active Active
- 2013-10-17 CA CA2888733A patent/CA2888733A1/en not_active Abandoned
- 2013-10-17 CN CN201380056893.5A patent/CN104768710B/zh active Active
- 2013-10-17 MX MX2015005167A patent/MX2015005167A/es unknown
- 2013-10-17 RU RU2015114083A patent/RU2616464C9/ru not_active IP Right Cessation
- 2013-10-17 JP JP2015539667A patent/JP6550335B2/ja active Active
- 2013-10-17 KR KR1020157013994A patent/KR102146313B1/ko active IP Right Grant
- 2013-10-17 WO PCT/US2013/065421 patent/WO2014070468A1/en active Application Filing
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US11530345B2 (en) | 2022-12-20 |
EP2914402A4 (en) | 2016-07-20 |
JP2021000721A (ja) | 2021-01-07 |
MX2015005167A (es) | 2015-09-04 |
US10696883B2 (en) | 2020-06-30 |
RU2616464C2 (ru) | 2017-04-17 |
CA2888733A1 (en) | 2014-05-08 |
JP2016500581A (ja) | 2016-01-14 |
WO2014070468A1 (en) | 2014-05-08 |
EP2914402B1 (en) | 2021-04-28 |
CN104768710B (zh) | 2017-09-22 |
JP6960373B2 (ja) | 2021-11-05 |
EP2914402A1 (en) | 2015-09-09 |
JP2018134733A (ja) | 2018-08-30 |
CN104768710A (zh) | 2015-07-08 |
JP7076890B2 (ja) | 2022-05-30 |
KR20150081313A (ko) | 2015-07-13 |
BR112015009886A2 (pt) | 2017-07-11 |
BR112015009886B1 (pt) | 2021-06-08 |
PL2914402T3 (pl) | 2021-09-27 |
KR102146313B1 (ko) | 2020-08-21 |
JP6550335B2 (ja) | 2019-07-24 |
US20200277522A1 (en) | 2020-09-03 |
US20150267097A1 (en) | 2015-09-24 |
RU2616464C9 (ru) | 2018-05-21 |
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