KR20200084887A - 거칠고 각진 분말 공급 재료로부터 미세 구형 분말을 제조하는 방법 및 장치 - Google Patents
거칠고 각진 분말 공급 재료로부터 미세 구형 분말을 제조하는 방법 및 장치 Download PDFInfo
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Abstract
Description
도 1은 예시적인 실시예에 따른 거칠고 각진 분말 공급 재료로부터 미세한 구형 분말을 제조하기 위한 장치의 개략적인 정면도이다.
도 2는 예시적인 실시예에 따른 도 1의 장치의 용융 구역 및 분무화 구역의 개략도이다.
도 3은 예시적인 실시예에 따른 도 1의 장치의 수렴-발산 노즐(예를 들어, 드-라발(De-Laval) 노즐)의 예를 도시하는 개략적인 단면도이다.
도 4a 및 4b는 예시적인 실시예에 따른 도 1에 도시된 장치에 의한 처리 전후 각각의 분말에 대한 주사 전자 현미경(SEM) 사진이다.
도 5는 도 4b에 도시된 동일한 분말 샘플의 다른 SEM 사진을 도시한 것으로, 더 큰 확대도이다.
도 6a 및 6b는 예시적인 실시예에 따른 처리 전후 각각의 동일한 샘플에 대한 레이저 회절 입자 크기 분포(PSD)를 도시하며, 도 4a 및 4b에 도시된 동일한 샘플에 동일한 순서로 대응된다.
도 7a 및 7b는 예시적인 실시예에 따른 드-라발 노즐을 구비한 가열 챔버의 변형예들을 도시한다.
Claims (16)
- 거친 및/또는 각진 입자들을 구형 및 미세 입자들로 구상화 및/또는 분무하는 공정.
- 제1항에 있어서,
가열 원;
가열 챔버;
초음속 노즐; 및
가스 스트림으로부터 분말을 수집하기 위한 가스-고체 분리 시스템을 포함하는, 공정.
- 제1항 또는 제2항에 있어서, 가열원은 플라즈마 토치를 포함하는, 공정.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 가열원은 하나 이상의 DC 또는 AC 아크 플라즈마 토치(들) 또는 이들의 조합인, 공정.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 분말 공급 원료는 임의의 분사 각도로 가열 챔버로 공급되는, 공정.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 처리된 분말은 기체-고체 분리 단계에서 연속적으로 또는 반-연속적으로 수집되는, 공정.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 재료의 추가 산화를 피하기 위해 불활성 가스가 공급되는, 공정.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 환원 가스가 공급되어 재료의 산화층을 감소시키는, 공정.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 산화 가스가 공급되어 재료의 산화층을 추가하는, 공정.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 제6항 내지 제8항에 언급된 가스의 임의의 조합은 가공된 재료의 표면 또는 화학적 조성을 개질하는데 사용되는, 공정.
- 제1항 또는 제2항에 있어서, 초음속 노즐은 수렴-발산 드-라발(convergent-divergent De Laval)이며, 스로트(throat)에서 마하수 1에 도달하도록 적응되는, 공정.
- 제10항에 있어서, 노즐은 또한 이의 단부에 디퓨저(diffuser)를 구비하여 출구 제트의 온도를 다시 증가시키고 입자가 냉각 챔버에 들어가기 전에 속도를 늦추는, 공정.
- 제1항 또는 제2항에 있어서, 초음속 노즐 설계는 드-라발 노즐 또는 에어로 스파이크(aerospike) 노즐인 공정.
- 제1항에 있어서, 유기물(그리스, 오일, 지방, 종이, 고무 및 플라스틱 등) 및/또는 습기와 같은 불순물들은 화학적 분해 및 고온에서의 증발로 인하여 분말 공급 원료로부터 제거되도록 구성되는, 공정.
- a) 공급 원료 입자들을 가열하는 단계, b) 입자들이 초음속 노즐을 통과하게 하는 단계, 및 c) 가스 스트림으로부터 예를 들어, 가스-고체 분리 시스템을 사용하여 생성된 분말을 수집하는 단계를 포함하는, 거친 및/또는 각진 입자들을 구형 및 미세 입자들로 구상화 및/또는 분무하는 공정.
- 가열원;
공급 원료 입자들을 용융시키기 위한 가열 챔버;
초음속 노즐; 및
초음속 노즐을 빠져나가는 가스 스트림으로부터 분말을 수집하기 위한 가스-고체 분리 시스템을 포함하는, 거친 및/또는 각진 입자들을 구형 및 미세 입자들로 구상화 및/또는 분무화하는 공정 장치.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762585882P | 2017-11-14 | 2017-11-14 | |
| US62/585,882 | 2017-11-14 | ||
| PCT/CA2018/000225 WO2019095039A1 (en) | 2017-11-14 | 2018-11-14 | Method and apparatus for producing fine spherical powders from coarse and angular powder feed material |
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| Publication Number | Publication Date |
|---|---|
| KR20200084887A true KR20200084887A (ko) | 2020-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020207016148A Ceased KR20200084887A (ko) | 2017-11-14 | 2018-11-14 | 거칠고 각진 분말 공급 재료로부터 미세 구형 분말을 제조하는 방법 및 장치 |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US20200391295A1 (ko) |
| EP (1) | EP3710180A4 (ko) |
| JP (2) | JP7330963B2 (ko) |
| KR (1) | KR20200084887A (ko) |
| CN (1) | CN111954581A (ko) |
| AU (2) | AU2018367932A1 (ko) |
| BR (1) | BR112020009436B1 (ko) |
| CA (1) | CA3082659A1 (ko) |
| EA (1) | EA202091131A1 (ko) |
| WO (1) | WO2019095039A1 (ko) |
| ZA (1) | ZA202003285B (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230129084A (ko) | 2022-02-28 | 2023-09-06 | 이언식 | 금속 및 합금 분말 제조용 가스분사장치 및 이를 이용한 가스분사 금속분말 제조장치 |
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|---|---|---|---|---|
| EP4324577A1 (en) | 2015-12-16 | 2024-02-21 | 6K Inc. | Method of producing spheroidal dehydrogenated titanium alloy particles |
| US10987735B2 (en) | 2015-12-16 | 2021-04-27 | 6K Inc. | Spheroidal titanium metallic powders with custom microstructures |
| WO2019246257A1 (en) | 2018-06-19 | 2019-12-26 | Amastan Technologies Inc. | Process for producing spheroidized powder from feedstock materials |
| US20200263285A1 (en) | 2018-08-02 | 2020-08-20 | Lyten, Inc. | Covetic materials |
| CN114007985A (zh) | 2019-04-30 | 2022-02-01 | 6K有限公司 | 锂镧锆氧化物(llzo)粉末 |
| US11311938B2 (en) | 2019-04-30 | 2022-04-26 | 6K Inc. | Mechanically alloyed powder feedstock |
| ES2994209T3 (en) | 2019-11-18 | 2025-01-20 | 6K Inc | Unique feedstocks for spherical powders and methods of manufacturing |
| US11590568B2 (en) * | 2019-12-19 | 2023-02-28 | 6K Inc. | Process for producing spheroidized powder from feedstock materials |
| RU197530U1 (ru) * | 2020-03-16 | 2020-05-12 | федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский Томский политехнический университет» | Устройство для сфероидизации композиционного металлсодержащего порошка для 3D-печати |
| DE102020116030A1 (de) * | 2020-06-17 | 2021-12-23 | Eos Gmbh Electro Optical Systems | Filtereinrichtung für eine additive Fertigungsvorrichtung |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230129084A (ko) | 2022-02-28 | 2023-09-06 | 이언식 | 금속 및 합금 분말 제조용 가스분사장치 및 이를 이용한 가스분사 금속분말 제조장치 |
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|---|---|
| CA3082659A1 (en) | 2019-05-23 |
| JP7330963B2 (ja) | 2023-08-22 |
| JP2021503041A (ja) | 2021-02-04 |
| BR112020009436A2 (pt) | 2020-11-03 |
| WO2019095039A1 (en) | 2019-05-23 |
| JP2023156421A (ja) | 2023-10-24 |
| US20200391295A1 (en) | 2020-12-17 |
| EP3710180A4 (en) | 2021-03-31 |
| BR112020009436B1 (pt) | 2023-11-14 |
| AU2024204275A1 (en) | 2024-07-11 |
| CN111954581A (zh) | 2020-11-17 |
| AU2018367932A1 (en) | 2020-06-11 |
| EA202091131A1 (ru) | 2020-08-12 |
| US20240399459A1 (en) | 2024-12-05 |
| ZA202003285B (en) | 2023-08-30 |
| EP3710180A1 (en) | 2020-09-23 |
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