JP2023511537A - 多孔質焼結金属体及び多孔質焼結金属体の調製方法 - Google Patents
多孔質焼結金属体及び多孔質焼結金属体の調製方法 Download PDFInfo
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Abstract
Description
Claims (23)
- 積層造形工程によって多孔質焼結金属体を形成する方法であって、
金属粒子を含有する供給原料を含む層を表面上に形成すること;
層の、20~50体積%の金属粒子を含有する部分において、金属粒子及び固体ポリマーを含む固化供給原料を選択的に形成すること;
固化供給原料を含有する層の上に、金属粒子を含有する供給原料を含む第2の層を形成すること;
第2の層の、20~50体積%の金属粒子を含有する部分において、金属粒子及び固体ポリマーを含む固化供給原料を選択的に形成すること;及び
該部分の金属粒子を焼結して、20~50体積%の金属粒子を含有する多孔質焼結金属体を形成すること
を含む、方法。 - 固化供給原料を形成した後に残っている供給原料から固化供給原料を分離することをさらに含む、請求項1記載の方法。
- 金属粒子が、2.0グラム/立方センチメートル未満の見かけ密度を有する、請求項1又は2に記載の方法。
- 金属粒子が、粒子の理論密度の5~35%の範囲内の相対見かけ密度を有する、請求項1~3のいずれか記載の方法。
- 供給原料が、金属粒子及び細孔形成ポリマー粒子を含む、請求項1記載の方法。
- 層又は第2の層の部分に液体ポリマーバインダーを選択的に適用し、液体ポリマーバインダーを固化させることによって固化供給原料を形成することをさらに含む、請求項5記載の方法。
- 層又は第2の層の部分に電磁エネルギーを選択的に印加し、孔形成ポリマー粒子を溶融させることによって固化供給原料を形成することをさらに含む、請求項5記載の方法。
- 供給原料組成物が、金属粒子及び硬化性液体ポリマーを含む、請求項1から4のいずれか一項に記載の方法。
- 層又は第2の層の部分に電磁エネルギーを選択的に印加し、硬化性液体ポリマーを硬化させることによって固化供給原料を形成することをさらに含む、請求項8記載の方法。
- 供給原料が、少なくとも95重量%の金属粒子を含む、請求項1から4のいずれか一項に記載の方法。
- 層又は第2の層の部分に液体ポリマーバインダーを選択的に適用し、液体ポリマーバインダーの固化を可能にするか又は引き起こすことによって固化供給原料を形成することをさらに含む、請求項10記載の方法。
- 固化供給原料の複数の層を含む多層固化供給原料複合体を、
それぞれが、金属粒子を含有する供給原料を含む追加の層を第2の層上に形成すること、
それぞれの追加の層の、20~50体積%の金属粒子を含む部分に、固体ポリマー中の金属粒子を含む固化供給原料を選択的に形成すること、及び、
層の供給原料から多層固体を分離すること
によって形成すること
を含む、請求項1~11のいずれかに記載の方法。 - 多孔質焼結金属体が、三次元管を含む形状を有する環状フィルタ膜である、請求項1から12のいずれか一項に記載の方法。
- 管が、管軸方向から見て円形断面を有する、請求項13記載の方法。
- 管が、管軸方向から見て非円形断面を有する、請求項13記載の方法。
- 多孔質焼結金属体が三次元非管状フィルタ膜である、請求項1から13のいずれか一項に記載の方法。
- 供給原料組成物であって、
50~80体積%の硬化性液体ポリマーバインダー;及び
供給原料組成物の総体積に基づいて、粒子の理論密度の5~35%の範囲内の相対見かけ密度を有する20~50体積%の金属粒子
を含む、供給原料組成物。 - 供給原料組成物であって、
固体細孔形成ポリマー粒子、及び
供給原料組成物の総体積に基づいて、粒子の理論密度の5~35%の範囲内の相対見かけ密度を有する20~50体積%の金属粒子
を含む、供給原料組成物。 - 金属粒子が樹枝状又は繊維状であり、2.0グラム/立方センチメートル未満の見かけ密度を有する、請求項17又は18記載の組成物。
- 積層造形法によって形成され、焼結金属粒子を含み、50~80%の範囲の多孔度を有する多孔質焼結金属体。
- 粒子が樹枝状粒子である、請求項20記載の多孔質焼結金属体。
- 粒子が繊維状粒子である、請求項20記載の多孔質焼結金属体。
- 光学顕微鏡を使用して視認可能な多層構造を有する、請求項20から22のいずれか一項に記載の多孔質焼結金属体。
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