JP2009102745A - コーティングされた粒子の製造法 - Google Patents
コーティングされた粒子の製造法 Download PDFInfo
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- JP2009102745A JP2009102745A JP2009018195A JP2009018195A JP2009102745A JP 2009102745 A JP2009102745 A JP 2009102745A JP 2009018195 A JP2009018195 A JP 2009018195A JP 2009018195 A JP2009018195 A JP 2009018195A JP 2009102745 A JP2009102745 A JP 2009102745A
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- powder
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- iron
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
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- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 2
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- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/108—Mixtures obtained by warm mixing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D191/00—Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Powder Metallurgy (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
- Paints Or Removers (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Nonmetallic Welding Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
【解決手段】 粒子状物質を、低せん断条件でそして好ましくはコーティング材料の融点より低い温度で、コーティングする。一つの態様においては、融点が低い、高分子又はワックス結合剤、好ましくはポリエチレン、によって合金用粉末に結合した金属をベースとする粉末を含有する冶金用組成物が提供される。結合剤は、金属をベースとする粉末及び合金用粉末を、高温で、好ましくは結合剤の融点より低い温度で混合する。結合した冶金用組成物は、圧縮成形法において、焼結して衝撃強度の高い製品が得られる圧縮成型した部品を製造するために使用することができる。
【選択図】 なし
Description
高圧を使用すると、追加の資本コスト及び運転コストがかかる。特許文献15にも粒子のコーティングをコーティング材の融点未満の温度で行うことができることが記載されている。しかし、特許文献14にあるように、良好なコーティングを得るためには、高せん断混合が必要である。
ポリエチレンオキシドが特許文献19に結合剤として開示されている。2塩基有機酸と固体ポリエーテル、液体ポリエーテル及びアクリル系樹脂のような1種以上の追加成分との組み合わせが、特許文献20に開示されている。高温圧縮成型用潤滑剤と共に使用することができる結合剤が特許文献21に記載されている。
することができる。混合工程は、結合剤の融点未満のバルク粉末温度で行われるのが好ましい。
て残余がこの2種のサイズの中間である(No.60篩より大きい粒子は極少量)粒子サイズ分布を有している。ANCORSTEEL1000粉末の見掛けの密度は、約2.85〜3.00g/cm3であり、典型的には2.94g/cm3である。本発明において使用することができる他の鉄粉末は、HoeganaesのANCORMH−100粉末のような典型的なスポンジ鉄粉末である。
ANCOR(登録商標)シリーズにおける種々のグレードで市販されている。
重量%である。
る粉末及び合金用粉末とを結合剤の融点未満の温度で混合することが好ましい。従って、ある状況においては、結合剤と金属をベースとする粉末及び合金用粉末とを、結合剤の融点より約3〜35℃、好ましくは約5〜30℃、そしてより好ましくは約8〜25℃だけ低い温度で混合することが好ましい。例えば、融点が約88℃、Mwが約500、そして重量平均粒子サイズが約20μmであるポリエチレンを用いて、そのポリエチレンと金属をベースとする粉末及び合金用粉末とを、約65℃で混合した場合に有利な性質が得られることが見出された。
3℃)の温度に加熱することによって製造した。次いでこの加熱された混合物を試験温度に加熱された混合容器に仕込み、組成物が試験温度に到達するまで混合を行った。次いで、結合剤を混合容器に添加し、そして均一混合物が得られるまで連続混合を行った。次いで混合された組成物を周囲温度にまで、冷却操作の効率を上げるために断続的に混合しながら冷却した。
性質 試験方法
見掛け密度(g/cc) ASTMB212−76
流動性(sec/50g) ASTMB213−77
未焼結密度(g/cc) ASTMB331−76
未焼結強度(psi) ASTMB312−76
未焼結体膨張
G.E.(%)=100[(未焼結バーの長さ)−(金型長さ)]
金型長さ
ティングする際の温度が金属をベースとする粉末と合金用粉末の間の結合の有効性にとって重要であることを具体的に示している。
てニッケル2%及び黒鉛1%を含有していた。各々の組成物は、ポリエチレン(Polywax500)0.5%、0.75%又は1%を含有し、組成物の残りは、鉄を基とする粉末、HoeganaesのANCORSTEEL1000Bであった。ポリエチレンと粉末冶金用組成物のその他の成分との混合工程の試験温度は、150゜F(65℃)であった。試料の見掛けの密度は、0.5%、0.75%及び1%試験試料に対し、それぞれ2.92、2.83及び2.89であった。全ての試料が流動性を示さなかった。
料が流動性を示さなかった。
で、直径約1000ミクロンである。3種の顔料、Engelhard Cleveland,Ohioから入手したDianisidine Orange 2915、Daicolor−Pope Clifton,New Jerseyから入手したTitaniaMT−100−HD又はClariantから入手した銅フタロシアニンに対するコーティング手順は、ガラスビーズ681g、結合剤6.8g、及び顔料6.9gを、Patterson−Kellyから入手した2クォートのVeeBlenderに添加し、回転しながら160゜Fで30分間加熱し、次いで30分間回転しながら冷却することであった。得られた生成物は良好な付着状態で均一にコーティングされていた。これらの材料を用いた第二シリーズの実験では、顔料36gを用いてコーティングを行った。最終生成物は、色がより濃厚であったが、同様なコーティングの均一性と付着状態が得られた。
Claims (4)
- コーティングされた粒子の製造方法であって、
(a)平均寸法が、10ミクロンと1cmの間である基本粒子を準備し;
(b)その基本粒子を、低融点で軟化点が200℃未満の高分子又はワックス、低融点であって重量平均分子量が3,000未満のポリオレフィン、或いは固体の植物油又はその水素化誘導体を含む、固体のコーティング材料と混合し;そして
(c)そのコーティング材料を基本粒子に、低せん断条件で、少なくとも120゜Fであってコーティング材料の融点未満の温度でコーティングすること
を含んで成る方法。 - コーティング材料が、ポリエステル、ポリエチレン、エポキシ、又はウレタンである請求項1に記載の方法。
- コーティング材料が、パラフィン、エチレンビスステアルアミド、又は綿実ワックスである請求項1に記載の方法。
- コーティング材料が、平均粒子サイズが少なくとも100ミクロン未満である請求項1に記載の方法。
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US95538297A | 1997-10-21 | 1997-10-21 | |
US08/955,382 | 1997-10-21 |
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JP2009018195A Expired - Lifetime JP5713537B2 (ja) | 1997-10-21 | 2009-01-29 | コーティングされた粒子の製造法 |
JP2013213585A Pending JP2014043648A (ja) | 1997-10-21 | 2013-10-11 | コーティングされた粒子の製造方法 |
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EP (1) | EP1023383B1 (ja) |
JP (3) | JP2003526693A (ja) |
KR (1) | KR100368997B1 (ja) |
CN (2) | CN102172772B (ja) |
AT (1) | ATE490998T1 (ja) |
AU (1) | AU754473B2 (ja) |
BR (1) | BR9812946A (ja) |
CA (1) | CA2307109C (ja) |
DE (1) | DE69842036D1 (ja) |
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KR101212786B1 (ko) | 2010-08-10 | 2012-12-14 | 프라운호퍼-게젤샤프트 츄어 푀르더룽 데어 안게반텐 포르슝에.파우. | 개방-다공성 금속폼 및 그의 제조방법 |
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CN106001540B (zh) * | 2016-05-17 | 2018-11-27 | 厦门金鹭特种合金有限公司 | 一种能够快速烘干硬质合金成型剂及其拌料工艺 |
EP3332897A1 (fr) * | 2016-12-08 | 2018-06-13 | The Swatch Group Research and Development Ltd | Liant pour composition de moulage par injection |
WO2019027419A1 (en) | 2017-07-31 | 2019-02-07 | Hewlett-Packard Development Company, L.P. | BROWN BODY COMPRISING BINDER OF METAL NANOPARTICLES |
EP3765291A4 (en) * | 2018-10-25 | 2021-11-10 | Hewlett-Packard Development Company, L.P. | THREE-DIMENSIONAL PRINTING |
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- 1998-09-16 CN CN2011100322938A patent/CN102172772B/zh not_active Expired - Fee Related
- 1998-09-16 EP EP98947022A patent/EP1023383B1/en not_active Expired - Lifetime
- 1998-09-16 JP JP2000517018A patent/JP2003526693A/ja active Pending
- 1998-09-16 CN CN98810359A patent/CN1301281A/zh active Pending
- 1998-09-16 AT AT98947022T patent/ATE490998T1/de not_active IP Right Cessation
- 1998-09-16 CA CA002307109A patent/CA2307109C/en not_active Expired - Fee Related
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- 1998-09-16 ES ES98947022T patent/ES2356885T3/es not_active Expired - Lifetime
- 1998-09-16 DE DE69842036T patent/DE69842036D1/de not_active Expired - Lifetime
- 1998-09-16 AU AU93908/98A patent/AU754473B2/en not_active Ceased
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Also Published As
Publication number | Publication date |
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JP2003526693A (ja) | 2003-09-09 |
WO1999020689A1 (en) | 1999-04-29 |
CA2307109A1 (en) | 1999-04-29 |
AU9390898A (en) | 1999-05-10 |
EP1023383A4 (en) | 2004-03-24 |
CN102172772A (zh) | 2011-09-07 |
AU754473B2 (en) | 2002-11-14 |
CN1301281A (zh) | 2001-06-27 |
CN102172772B (zh) | 2013-03-06 |
DE69842036D1 (de) | 2011-01-20 |
ES2356885T3 (es) | 2011-04-14 |
BR9812946A (pt) | 2000-08-08 |
KR20010031305A (ko) | 2001-04-16 |
CA2307109C (en) | 2009-09-08 |
JP5713537B2 (ja) | 2015-05-07 |
EP1023383B1 (en) | 2010-12-08 |
ATE490998T1 (de) | 2010-12-15 |
EP1023383A1 (en) | 2000-08-02 |
KR100368997B1 (ko) | 2003-01-24 |
JP2014043648A (ja) | 2014-03-13 |
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