KR20080083873A - 나일론 6을 이용한 레이저 소결용 분말, 이의 제조방법 및이를 이용한 성형체 - Google Patents
나일론 6을 이용한 레이저 소결용 분말, 이의 제조방법 및이를 이용한 성형체 Download PDFInfo
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- KR20080083873A KR20080083873A KR1020070024658A KR20070024658A KR20080083873A KR 20080083873 A KR20080083873 A KR 20080083873A KR 1020070024658 A KR1020070024658 A KR 1020070024658A KR 20070024658 A KR20070024658 A KR 20070024658A KR 20080083873 A KR20080083873 A KR 20080083873A
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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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
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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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B2009/125—Micropellets, microgranules, microparticles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- Manufacturing & Machinery (AREA)
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- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
Abstract
Description
Claims (12)
- a) 펠렛 형태의 나일론 6을 건식 냉동 분쇄 방법을 이용하여 분말로 제조하는 단계;b) 분말로 제조된 나일론 6을 열처리하여 완구율을 높이는 단계;c) 열처리한 나일론 6 분말을 나일론 11 또는 나일론 12 분말과 혼합하는 단계;를 포함하는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 1항에 있어서,상기 a)단계에서 건식 냉동 분쇄 방법은 나일론 6을 액체 질소를 사용하여 냉동하고 고속로터형분쇄기를 통하여 분쇄하여 분말로 제조하는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 2항에 있어서,상기 a)단계 시 체분리를 통하여 입자의 크기가 큰 것은 다시 냉동하여 원하는 입도분포인 20 ~ 100㎛가 될 때까지 분쇄를 반복하는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 1항에 있어서,상기 b)단계는 분말로 제조된 나일론 6의 열변형 온도와 용융점 사이인 65 ~ 220℃로 열을 가한상태에서 교반시켜 0.6 ~ 0.9의 완구율을 갖는 분말을 제조하는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 1항에 있어서,상기 b)단계는 65 ~ 220℃의 물에 분말 상태의 나일론 6을 넣고 교반시켜 0.6 ~ 0.9의 완구율을 갖는 분말을 제조한 후 건조시키는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 5항에 있어서,상기 교반 시 유리비드를 넣고 교반을 하여 완구율을 더욱 향상시키는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 1항에 있어서,상기 c)단계에서 나일론6과 나일론 11 또는 나일론 12의 혼합 비율은 0.2 ~ 1 : 1 중량비인 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 7항에 있어서,상기 나일론 11 또는 나일론 12은 입도분포가 40 ~ 70㎛이고, 완구율이 0.7 이상인 것을 사용하는 것을 특징으로 하는 레이저 소결용 분말의 제조방법.
- 제 1항 내지 제 8항에서 선택되는 어느 한 항의 제조방법에 의해 제조된 나일론6과 나일론 11 또는 나일론 12의 혼합분말을 이용하여 CO₂레이저를 이용해 소결 성형한 것을 특징으로 하는 성형체.
- 제 9항에 있어서,상기 소결 성형은 소결용 장비의 피드룸에서 예열하고, 빌드룸에서 분말의 용융점 보다 5 ~ 10℃ 낮은 온도에서 예열한 상태에서 CO₂레이저를 통하여 소결 성형한 것을 특징으로 하는 성형체.
- 건식 냉동 분쇄 방법에 의해 제조된 평균입경이 20 ~ 100㎛이고, 완구율이 0.6 ~ 0.9인 나일론 6 분말을 포함하는 것을 특징으로 하는 레이저 소결용 분말.
- 제 11항에 있어서,상기 레이저 소결용 분말은 상기 나일론 6 분말과 나일론 11 또는 나일론 12를 0.2 ~ 1 : 1 중량비로 혼합하여 사용하는 것을 특징으로 하는 레이저 소결용 분말.
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KR1020070024658A KR100867984B1 (ko) | 2007-03-13 | 2007-03-13 | 나일론 6을 이용한 레이저 소결용 분말, 이의 제조방법 및이를 이용한 성형체 |
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KR1020070024658A KR100867984B1 (ko) | 2007-03-13 | 2007-03-13 | 나일론 6을 이용한 레이저 소결용 분말, 이의 제조방법 및이를 이용한 성형체 |
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KR100867984B1 KR100867984B1 (ko) | 2008-11-11 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109929242A (zh) * | 2018-11-09 | 2019-06-25 | 湖南华曙高科技有限责任公司 | 一种尼龙聚合物粉末吸热材料及其制备方法 |
CN114262518A (zh) * | 2021-12-31 | 2022-04-01 | 湖南华曙高科技股份有限公司 | 一种选择性激光烧结用尼龙粉末材料及其制备方法 |
CN114656779A (zh) * | 2021-12-31 | 2022-06-24 | 湖南华曙高科技股份有限公司 | 一种选择性激光烧结用高分子粉末材料及其制备方法 |
US11577458B2 (en) | 2018-06-29 | 2023-02-14 | 3M Innovative Properties Company | Additive layer manufacturing method and articles |
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JPS6058442A (ja) | 1983-09-12 | 1985-04-04 | Nippon Puraudaa Kk | ナイロン連続多孔体を製造する方法 |
JPH05135932A (ja) * | 1991-11-08 | 1993-06-01 | Kawasaki Steel Corp | ボンド磁性体用組成物およびボンド磁性体 |
US5990268A (en) | 1992-11-23 | 1999-11-23 | Dtm Corporation | Sinterable semi-crystalline powder and near-fully dense article formed therewith |
JP3601284B2 (ja) | 1997-03-18 | 2004-12-15 | 宇部興産株式会社 | 球状ポリアミドの製造方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11577458B2 (en) | 2018-06-29 | 2023-02-14 | 3M Innovative Properties Company | Additive layer manufacturing method and articles |
CN109929242A (zh) * | 2018-11-09 | 2019-06-25 | 湖南华曙高科技有限责任公司 | 一种尼龙聚合物粉末吸热材料及其制备方法 |
CN114262518A (zh) * | 2021-12-31 | 2022-04-01 | 湖南华曙高科技股份有限公司 | 一种选择性激光烧结用尼龙粉末材料及其制备方法 |
CN114656779A (zh) * | 2021-12-31 | 2022-06-24 | 湖南华曙高科技股份有限公司 | 一种选择性激光烧结用高分子粉末材料及其制备方法 |
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