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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 6. Отображено 5.
27-05-2021 дата публикации

GETTER DEVICE FOR SINTERING ADDITIVELY MANUFACTURED PARTS

Номер: US20210154738A1
Автор: Chao Michelle Ling, Hoffman Christopher, WOODRUFF Rick Bryan
Принадлежит:

A method and system of additively manufacturing parts using a getter device is disclosed. Specifically, provided herein are methods and systems of using a getter device in a sintering atmosphere furnace for consistently and repeatedly sintering additively manufactured machined quality parts, such as, for example, titanium parts. 1. A method of additive manufacturing , comprising:substantially surrounding one or more parts comprising a sinterable material with a getter material;enclosing the one or more substantially surrounded parts in a sintering furnace; andexposing the one or more substantially surrounded parts to a sintering atmosphere.2. The method of claim 1 , wherein the sintering atmosphere is at a pressure in a range of between about 90 kPa and about 202 kPa.3. The method of claim 1 , wherein the sintering atmosphere includes a positive pressure.4. The method of claim 1 , wherein the sintering atmosphere comprises at least an atmospheric concentration of at least one of carbon claim 1 , nitrogen claim 1 , oxygen claim 1 , and sulfur.5. The method of claim 1 , wherein the sinterable material comprises Titanium (Ti).6. The method of claim 5 , wherein at least some of the Ti in the sinterable material is a bound powder.7. The method of claim 1 , wherein the getter material is selected from the group consisting of aluminum (Al) claim 1 , barium (B a) claim 1 , cerium (Ce) claim 1 , hafnium (Hf) claim 1 , lanthanum (La) claim 1 , magnesium (Mg) claim 1 , molybdenum (Mo) claim 1 , ruthenium (Ru) claim 1 , tantalum (Ta) claim 1 , and Ti.8. The method of claim 7 , wherein the getter material comprises Ti.9. The method of claim 7 , wherein the getter material comprises Mg.10. The method of claim 1 , further comprising a step of heating the one or more substantially surrounded parts to a temperature between 1000 and 1400° C.11. The method of claim 10 , further comprising a step of removing the sintered parts from the sintering furnace.12. The method of claim 11 , ...

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Номер записи: 1
01-07-2021 дата публикации

SINTERABLE SEPARATION MATERIAL IN ADDITIVE MANUFACTURING

Номер: US20210197493A1
Автор: Chao Michelle Ling, Mark Gregory Thomas, WOODRUFF Rick Bryan
Принадлежит:

According to one aspect, embodiments of the invention provide a method of 3D printing, comprising depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder, depositing the model material in successive layers to form a support structure adjacent the part, depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder, debinding the first removable binder of the model material and the second removable binder of the sinterable separation material, and sintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material. 128-. (canceled)29. A method of additively manufacturing an object , the method comprising:depositing a composite including a metal particulate filler and a debindable matrix in successive layers to form a densification linking platform, densification linking supports, and a densification linking part, at least a portion of the successive layers of the object having at least one wall substantially enclosing an interior volume of a part;forming a debinding acceleration structure having interconnected chambers and a plurality of access channels that penetrate one or more of the at least one wall exposing the composite, such that when exposed to a fluid debinder during a debinding process, the exposed composite forms a brown part including the debound densification linking platform, the debound densification linking supports, and the debound densification linking part;debinding the composite including penetrating the fluid debinder into the debinding acceleration structure through the plurality of access channels to ...

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Номер записи: 2
15-07-2021 дата публикации

System, apparatus, and methods for managing sintering supports

Номер: US20210213534A1
Автор: Benjamin Hodsdon Gallup, Christopher Hoffmann, Gregory Thomas Mark, Maxim Seleznev, Michelle Ling CHAO
Принадлежит: Markforged Inc

Systems, apparatus and methods of additively manufacturing objects are disclosed. Specifically, provided herein are methods of heating objects having a particle-based support at least partially surrounding the object during portions of stages of the heating. Additionally, systems, apparatus, and methods for removing the particle-based support during heating, such that the object can continue heating to form a final part. Systems, apparatus, and methods for distributing the particle-based support to shore the objects through heating are disclosed. Systems, apparatus, and methods for removing the particle-based support are also disclosed herein.

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Номер записи: 3
05-09-2019 дата публикации

SINTERABLE SEPARATION MATERIAL IN ADDITIVE MANUFACTURING

Номер: US20190270254A1
Автор: Chao Michelle Ling, Mark Gregory Thomas, WOODRUFF Rick Bryan
Принадлежит:

According to one aspect, embodiments of the invention provide a method of 3D printing, comprising depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder, depositing the model material in successive layers to form a support structure adjacent the part, depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder, debinding the first removable binder of the model material and the second removable binder of the sinterable separation material, and sintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material. 1. A method of 3D printing , comprising:depositing a model material in successive layers to form a part, the model material being a metal composite including greater than 50% by volume metal powder and less than 50% by volume a first removable binder;depositing the model material in successive layers to form a support structure adjacent the part;depositing a sinterable separation material between a surface of the part and a surface of the support structure, the sinterable separation material formed from 10-40% by volume ceramic powder and greater than 50% by volume a second removable binder;debinding the first removable binder of the model material and the second removable binder of the sinterable separation material; andsintering the part, the support structure, and the sinterable separation material at a temperature profile that sinters the model material and the sinterable separation material.2. The method according to claim 1 , wherein the first removable binder and the second removable binder share more than ...

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Номер записи: 4
16-11-2023 дата публикации

Extraction of elements and/or compounds from iron-containing materials such as iron-containing tailings, recovery of magnetically susceptible materials, and related systems and products

Номер: WO2023220735A1
Автор: Alex NYARKO, Elizabeth N. CLINE, Henry Chase HUTCHENSON, Michelle Ling CHAO, Rita Marie SILBERNAGEL, Ryan Roberts MCKEOWN, Thomas Anthony VILLALON, Jr.
Принадлежит: Phoenix Tailings, Inc.

Extraction of elements and/or compounds from iron-containing materials, such as iron- containing tailings, and related systems and products are generally described. The systems and methods described herein can provide, in accordance with certain embodiments, the ability to efficiently process iron-containing (e.g., iron-rich) tailings even in the presence of aluminosilicates and/or other impurities. In addition, in accordance with some embodiments, the systems and methods described herein can provide the ability to efficiently extract different minerals and/or other compounds (e.g., metal(s), salt(s), etc.) from complex tailings structures. Furthermore, reactors and methods for recovery of a reaction product with a relatively high magnetic susceptibility are generally described. Certain reactors are configured such that, during operation, the reaction products are selectively transported to the magnetic field source, relative to the reactants.

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Номер записи: 5