RU2012117834A - Нецилиндрические филаменты для использования в экструзионных цифровых системах изготовления - Google Patents
Нецилиндрические филаменты для использования в экструзионных цифровых системах изготовления Download PDFInfo
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- RU2012117834A RU2012117834A RU2012117834/05A RU2012117834A RU2012117834A RU 2012117834 A RU2012117834 A RU 2012117834A RU 2012117834/05 A RU2012117834/05 A RU 2012117834/05A RU 2012117834 A RU2012117834 A RU 2012117834A RU 2012117834 A RU2012117834 A RU 2012117834A
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- Russia
- Prior art keywords
- consumable
- cylindrical
- cross
- fluidizer
- sectional profile
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/06—Rod-shaped
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
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Abstract
1. Расходный материал для использования в экструзионной цифровой системе изготовления, причем расходный материал имеет длину и профиль поперечного сечения по меньшей мере участка длины, который является осеасимметричным, причем профиль поперечного сечения сконфигурирован для совмещения с нецилиндрическим ожижителем экструзионной цифровой системы изготовления, имеющим входную площадьпоперечного сечения и гидравлический диаметр, причем, чтобы обеспечивать время реакции с помощью нецилиндрического ожижителя, которое по меньшей мере на 50% быстрее времени реакции, достигаемого с помощью цилиндрического филамента в цилиндрическом ожижителе для такой же термически ограниченной максимальной объемной скорости потока.2. Расходный материал по п.1, в котором профиль поперечного сечения имеет прямоугольную геометрию.3. Расходный материал по п.1, в котором профиль поперечного сечения имеет коэффициент формы поперечного сечения ширины к толщине, составляющий 2:1 или более.4. Расходный материал по п.3, в котором ширина профиля поперечного сечения находится в пределах от около 1,0 мм до около 10,2 мм.5. Расходный материал по п.1, в котором расходный материал содержит основной участок, имеющий первую поверхность и вторую поверхность и слой, размещенный на первой поверхности основного участка, причем основной участок и первая поверхность получены из различных материалов.6. Расходный материал по п.1, в котором7. Способ изготовления трехмерной модели в экструзионной цифровой системе изготовления, причем способ содержит этапы, на которых:подают расходный материал в нецилиндрический ожижитель экструзионной цифровой системы из�
Claims (15)
1. Расходный материал для использования в экструзионной цифровой системе изготовления, причем расходный материал имеет длину и профиль поперечного сечения по меньшей мере участка длины, который является осеасимметричным, причем профиль поперечного сечения сконфигурирован для совмещения с нецилиндрическим ожижителем экструзионной цифровой системы изготовления, имеющим входную площадь А е поперечного сечения и гидравлический диаметр D h, причем
, чтобы обеспечивать время реакции с помощью нецилиндрического ожижителя, которое по меньшей мере на 50% быстрее времени реакции, достигаемого с помощью цилиндрического филамента в цилиндрическом ожижителе для такой же термически ограниченной максимальной объемной скорости потока.
2. Расходный материал по п.1, в котором профиль поперечного сечения имеет прямоугольную геометрию.
3. Расходный материал по п.1, в котором профиль поперечного сечения имеет коэффициент формы поперечного сечения ширины к толщине, составляющий 2:1 или более.
4. Расходный материал по п.3, в котором ширина профиля поперечного сечения находится в пределах от около 1,0 мм до около 10,2 мм.
5. Расходный материал по п.1, в котором расходный материал содержит основной участок, имеющий первую поверхность и вторую поверхность и слой, размещенный на первой поверхности основного участка, причем основной участок и первая поверхность получены из различных материалов.
7. Способ изготовления трехмерной модели в экструзионной цифровой системе изготовления, причем способ содержит этапы, на которых:
подают расходный материал в нецилиндрический ожижитель экструзионной цифровой системы изготовления, причем расходный материал имеет длину и профиль поперечного сечения по меньшей мере участка длины, который является осеасимметричным, и причем нецилиндрический ожижитель имеет входную площадь А е поперечного сечения и гидравлический диаметр D h с расходным материалом, причем
;
плавят расходный материал в нецилиндрическом ожижителе;
экструдируют расплавленный расходный материал из нецилиндрического ожижителя;
осаждают экструдированный расходный материал послойным образом для формирования по меньшей мере участка трехмерной модели; и
управляют подачей расходного материала в нецилиндрический ожижитель для обеспечения времени реакции для экструзии расплавленного расходного материала, которое по меньшей мере на 50% быстрее времени реакции, достигаемого с помощью цилиндрического филамента в цилиндрическом ожижителе для такой же термически ограниченной максимальной объемной скорости потока.
8. Способ по п.7, в котором время реакции расходного материала в нецилиндрическом ожижителе в по меньшей мере примерно два раза быстрее времени реакции цилиндрического филамента в цилиндрическом ожижителе.
9. Способ по п.8, в котором время реакции расходного материала в нецилиндрическом ожижителе в по меньшей мере примерно три раза быстрее времени реакции цилиндрического филамента в цилиндрическом ожижителе.
10. Способ по п.7, в котором профиль поперечного сечения имеет прямоугольную геометрию.
11. Способ по п.10, в котором профиль поперечного сечения имеет коэффициент формы ширины к толщине поперечного сечения, находящийся в пределах от около 2,5:1 до около 20:1.
12. Способ по п.11, в котором ширина профиля поперечного сечения находится в пределах от около 1,0 мм до около 10,2 мм.
13. Способ по п.7, в котором расходный материал содержит основной участок, имеющий первую поверхность и вторую поверхность, и слой, размещенный на первой поверхности основного участка, и причем основной участок и первая поверхность получены из различных материалов.
15. Способ по п.7, в котором нецилиндрический ожижитель содержит канал с дугообразным профилем поперечного сечения.
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