RU2009128644A - Способ изготовления сборной конструкции, а также такая конструкция - Google Patents

Способ изготовления сборной конструкции, а также такая конструкция Download PDF

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Publication number
RU2009128644A
RU2009128644A RU2009128644/03A RU2009128644A RU2009128644A RU 2009128644 A RU2009128644 A RU 2009128644A RU 2009128644/03 A RU2009128644/03 A RU 2009128644/03A RU 2009128644 A RU2009128644 A RU 2009128644A RU 2009128644 A RU2009128644 A RU 2009128644A
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Russia
Prior art keywords
oxide
hole
sintered
section
molded part
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RU2009128644/03A
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English (en)
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Эльмар ХОК (DE)
Эльмар ХОК
Штефан ФЕХЕР (DE)
Штефан ФЕХЕР
Лотар ФЕЛКЛЬ (DE)
Лотар ФЕЛКЛЬ
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Дегудент Гмбх (De)
Дегудент Гмбх
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Publication of RU2009128644A publication Critical patent/RU2009128644A/ru

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Abstract

1. Способ изготовления сборной конструкции из спеченного оксиднокерамического материала, такого как частично стабилизированный оксид циркония, содержащей первую деталь (10, 22, 30, 144), которая, по меньшей мере, участками окружает вторую деталь (12, 26, 32, 141) так, что отделение первой детали от второй детали невозможно без разрушения первой и/или второй детали, включающий следующие этапы: ! изготовляют первую неразъемную формованную деталь (110, 122, 130, 44) и вторую неразъемную формованную деталь (112, 126, 132, 41) из оксиднокерамической заготовки, причем размеры первой формованной детали и второй формованной детали больше, чем размер первой детали (10, 22, 30, 144) и второй детали (12, 26, 32, 141), настолько, чтобы компенсировать усадку при спекании, ! полностью спекают вторую формованную деталь для получения второй детали (12, 26, 32, 141), ! собирают вторую деталь и первую формованную деталь и осуществляют последующее общее спекание, ! отличающийся тем, что в качестве первой формованной детали (110, 122, 132, 44) используют деталь с отверстием, эффективное сечение которого после спекания либо меньше эффективного сечения второй формованной детали (112, 126, 132, 41) после спекания в той области, которая находится внутри первой детали (10, 22), либо меньше, чем эффективное сечение второй детали (32, 141) перед отверстием и за ним. ! 2. Способ по п.1, отличающийся тем, что в качестве заготовки используют неспеченную заготовку из прессованного оксиднокерамического порошка. ! 3. Способ по п.2, отличающийся тем, что оксиднокерамический порошок прессуют аксиальным прессованием или изостатически при давлении p в интервале 150 МПа ≤ p ≤ 350 МПа. ! 4. Способ по п.1, отличающийся тем, что в к�

Claims (13)

1. Способ изготовления сборной конструкции из спеченного оксиднокерамического материала, такого как частично стабилизированный оксид циркония, содержащей первую деталь (10, 22, 30, 144), которая, по меньшей мере, участками окружает вторую деталь (12, 26, 32, 141) так, что отделение первой детали от второй детали невозможно без разрушения первой и/или второй детали, включающий следующие этапы:
изготовляют первую неразъемную формованную деталь (110, 122, 130, 44) и вторую неразъемную формованную деталь (112, 126, 132, 41) из оксиднокерамической заготовки, причем размеры первой формованной детали и второй формованной детали больше, чем размер первой детали (10, 22, 30, 144) и второй детали (12, 26, 32, 141), настолько, чтобы компенсировать усадку при спекании,
полностью спекают вторую формованную деталь для получения второй детали (12, 26, 32, 141),
собирают вторую деталь и первую формованную деталь и осуществляют последующее общее спекание,
отличающийся тем, что в качестве первой формованной детали (110, 122, 132, 44) используют деталь с отверстием, эффективное сечение которого после спекания либо меньше эффективного сечения второй формованной детали (112, 126, 132, 41) после спекания в той области, которая находится внутри первой детали (10, 22), либо меньше, чем эффективное сечение второй детали (32, 141) перед отверстием и за ним.
2. Способ по п.1, отличающийся тем, что в качестве заготовки используют неспеченную заготовку из прессованного оксиднокерамического порошка.
3. Способ по п.2, отличающийся тем, что оксиднокерамический порошок прессуют аксиальным прессованием или изостатически при давлении p в интервале 150 МПа ≤ p ≤ 350 МПа.
4. Способ по п.1, отличающийся тем, что в качестве заготовки используют предварительно спеченную заготовку из прессованного порошка оксиднокерамического материала.
5. Способ по п.2, отличающийся тем, что неспеченную заготовку предварительно спекают при температуре T1 ≥ 450°C, в частности, при 600°C ≤ T1 ≤ 1200°C в течение периода t1 времени в диапазоне 0,5 ч ≤ t1 ≤ 6 ч.
6. Способ по п.4, отличающийся тем, что предварительно спеченную заготовку плотно спекают при температуре T2 в интервале 300°C ≤ T2 ≤ 650°C в течение периода t2 времени в интервале 1 ч ≤ t2 ≤ 3 ч.
7. Способ по п.2 или 4, отличающийся тем, что в качестве порошка оксидной керамики используют, по меньшей мере, один порошок оксида металла из группы, включающей Al2O3, TiO2, MgO, Y2O3, BaTiO3, оксида циркония, порошка кристаллического твердого раствора оксида циркония.
8. Способ по п.7, отличающийся тем, что в качестве порошка кристаллического твердого раствора оксида циркония используют порошок с составом:
90-98 масс.% оксид циркония, 0-4 масс.% оксид гафния 1-7 масс.% оксид иттрия 0-1 масс.% один из оксидов таких элементов, как алюминий, галлий, германий, индий, цинк, свинец, лантаниды 0-2 масс.% оксидные подкрашивающие добавки
причем подкрашивающими добавками предпочтительно являются: Er2O3, Pr6On или Fe2O3.
9. Способ по п.1, отличающийся тем, что заготовку полностью спекают до плотности, составляющей от 90 до 100%, в частности, от 96 до 100% от теоретической.
10. Конструкция, изготовленная способом по п.1, отличающаяся тем, что первая деталь является корпусом (10) с отверстием (14), через который в качестве второй детали проходит поршневой шток (12), который имеет поршень (16), эффективное сечение которого больше, чем сечение отверстия, и который может возвратно-поступательно перемещаться внутри корпуса.
11. Конструкция, изготовленная способом по п.1, отличающаяся тем, что второй деталью (141) предпочтительно является коленчатый вал, и участок вала окружен диском (144) с отверстиями, причем этот участок смещен относительно оси вала, или вал содержит участки (146, 148), которые имеют активные размеры, которые больше, чем отверстие в диске, через которое проходит вал в полностью спеченном состоянии.
12. Конструкция, изготовленная способом по п.1, отличающаяся тем, что конструкция является зубным имплантатом (30) и имеет в качестве первой детали компонент, несущий зубопротезную конструкцию, со сквозным отверстием (34), через которое проходит винт (32) в качестве второй детали, причем винт имеет расширяющиеся концы, такие как головки (38, 40) с соответствующим диаметром, который больше, чем эффективное сечение сквозного отверстия.
13. Конструкция, изготовленная способом по п.1, отличающаяся тем, что конструкция в качестве первой детали содержит шарнирную муфту (22) с доступным через отверстие гнездом (24), причем головка (20) шарнира (26) как вторая деталь вставлена в гнездо (24), сечение которого со стороны отверстия меньше, чем максимальное сечение шарнирной головки (20).
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