JP6563691B2 - 段階化した炭化ケイ素を有する鋳型 - Google Patents
段階化した炭化ケイ素を有する鋳型 Download PDFInfo
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- JP6563691B2 JP6563691B2 JP2015108050A JP2015108050A JP6563691B2 JP 6563691 B2 JP6563691 B2 JP 6563691B2 JP 2015108050 A JP2015108050 A JP 2015108050A JP 2015108050 A JP2015108050 A JP 2015108050A JP 6563691 B2 JP6563691 B2 JP 6563691B2
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- Prior art keywords
- mold
- silicon carbide
- facecoat
- bulk
- calcium
- Prior art date
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- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/005—Castings of light metals with high melting point, e.g. Be 1280 degrees C, Ti 1725 degrees C
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3828—Moulds made of at least two different materials having different thermal conductivities
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
本開示の態様は、チタンおよびチタン合金の改善されたコンポーネントを提供し得るインベストメント鋳型の組成を提供する。本開示の一態様において、カルシウムアルミネートセメントの形態のカルシウムモノアルミネートが提供され得る。カルシウムアルミネートセメントは、「セメント」または「結合剤」とも呼ばれ得る。
本開示は、とりわけ、チタンおよびチタン合金の改善されたコンポーネントを提供し得るインベストメント鋳型の組成に関する。型は、型のバルクと型穴との間に、炭化ケイ素を含有する連続した固有フェイスコートを含有する。一例において、炭化ケイ素は、型のいくつかのセクションでより高濃度であり、型の他のセクションでより低濃度であるように、型全体で段階的である。外形寸法が約50ミクロン未満の炭化ケイ素粉末サイズが、型作製プロセスにおいて使用される。本出願の発明者らは、このサイズの炭化ケイ素粉末の使用が、型作製中のフェイスコートへの粒子の偏析を促進することを発見した。したがって、型内の段階的炭化ケイ素の存在は、有益な特性を提供する。型のバルクもまた、炭化ケイ素を含有し得る。
インベストメント型は、セラミックコンポーネントのインベストメントミックスを配合し、消失模型を含む容器内にミックスを流し込むことにより形成される。模型上で形成されたインベストメント型は、完全に硬化され、いわゆる「生型」を形成する。炭化ケイ素含有固有フェイスコートおよびインベストメント型は、模型上で形成され、それらが完全に硬化されてこの生型を形成する。典型的には、生型の硬化は、1時間から48時間の期間行われる。その後、溶融、溶解、点火、または他の知られている模型除去技術により、生型から消失模型が選択的に除去される。ろう模型除去のための典型的な方法は、オーブン内脱ろう(150℃未満)、炉内脱ろう(150℃超)、蒸気オートクレーブ脱ろう、およびマイクロ波脱ろうを含む。
15 型のバルク
20 部分
30 部分
40 部分
50 部分
60 物品
200 型
210 SiC外側部分
220 内側部分
230 物品
300 型
310 外側セクション
320 内側半径方向部分
Claims (22)
- チタン含有物品を鋳造するための型であって、
カルシウムモノアルミネート、カルシウムジアルミネート、マイエナイトおよび炭化ケイ素を含み、型のバルク内の前記炭化ケイ素の濃度は、炭化ケイ素が型の異なる部分に異なる濃度で存在するように段階的であり、炭化ケイ素の最高濃度は、型のフェイスコート内にあり、前記フェイスコートは、型のバルクと、型穴に対して開いた型内側表面との間に位置する、型。 - フェイスコートが、連続した固有フェイスコートであり、約50ミクロン未満の粒子サイズを有するカルシウムモノアルミネートおよびカルシウムジアルミネートを含み、
前記固有フェイスコートが、型の成分に由来する成分のみを含むフェイスコートである、請求項1記載の型。 - フェイスコートが、固有フェイスコートであり、前記固有フェイスコートは、約10ミクロンから約500ミクロンの厚さであり、
前記固有フェイスコートが、型の成分に由来する成分のみを含むフェイスコートである、請求項1記載の型。 - 炭化ケイ素が、約10重量%から約50重量%で存在する、請求項1記載の型。
- 炭化ケイ素の最低濃度が、フェイスコートから最も離れた箇所にある、請求項1記載の型。
- 炭化ケイ素が、半径方向、または軸方向および半径方向の両方で段階的である、請求項1記載の型。
- 型のバルク内にアルミナ粒子をさらに含み、アルミナ粒子は、外形寸法が約50ミクロン超である、請求項1記載の型。
- 型のバルク内にアルミナ粒子をさらに含み、前記アルミナ粒子は、外形寸法が約500ミクロン未満である、請求項1記載の型。
- フェイスコートが、アルミナをさらに含み、重量分率でのアルミナのレベルが、型のバルク内に存在するレベルよりもフェイスコート内で少なくとも20パーセント低く、重量分率でのカルシウムモノアルミネートのレベルが、型のバルク内に存在するレベルよりもフェイスコート内で少なくとも20パーセント高く、重量分率でのマイエナイトのレベルが、型のバルク内に存在するレベルよりもフェイスコート内で少なくとも50パーセント低い、請求項5記載の型。
- 型のバルク内の炭化ケイ素が、フェイスコートから最も離れた型のセクション内で最も少なくなるように段階的である、請求項1記載の型。
- 型のバルク内の前記カルシウムモノアルミネートが、約0.05から0.95の重量分率を占め、フェイスコート内の前記カルシウムモノアルミネートが、約0.1から0.9の重量分率を占め;型のバルク内の前記カルシウムジアルミネートが、約0.05から約0.80の重量分率を占め、フェイスコート内の前記カルシウムジアルミネートが、約0.05から0.90の重量分率を占め;型のバルク内の前記マイエナイトが、約0.01から約0.30の重量分率を占め、フェイスコート内の前記マイエナイトが、約0.001から0.05の重量分率を占める、請求項1記載の型。
- カルシウムモノアルミネートおよびカルシウムジアルミネートが、型の20重量%超を占める、請求項1記載の型。
- アルミナ粒子、酸化マグネシウム粒子、酸化カルシウム粒子、酸化ジルコニウム粒子、酸化チタン粒子、酸化ケイ素粒子、またはそれらの組成物をさらに含む、請求項1記載の型。
- 前記アルミナ粒子は、型の約30重量%から約68重量%を占める、請求項13記載の型。
- 型の約10重量%から約50重量%の酸化カルシウムをさらに含む、請求項1記載の型。
- 炭化ケイ素が、半径方向、または軸方向および半径方向の両方で段階的である、請求項1記載の型。
- チタン含有物品を鋳造するための型であって、
カルシウムアルミネートおよび炭化ケイ素を含み、前記炭化ケイ素は、型の異なる部分が異なる濃度の炭化ケイ素を有するように前記型のバルク内で段階的であり、炭化ケイ素の濃度は、型のフェイスコート内で最も高く、前記フェイスコートは、型のバルクと、型穴に対して開いた型内側表面との間に位置する型。 - 炭化ケイ素が、型の約10重量%から約50重量%で存在する、請求項17記載の型。
- 型が、型のバルクおよび固有フェイスコートを備え、型のバルクおよび固有フェイスコートは、異なる組成を有し、
前記固有フェイスコートが、型の成分に由来する成分のみを含むフェイスコートであり、
段階的な炭化ケイ素は、フェイスコート内において最も高濃度であり、フェイスコートから最も離れた型のバルクのセクションにおいて最も低濃度である、請求項17記載の型。 - 型のバルク内に、外形寸法が約500ミクロン未満であるアルミナ粒子をさらに含む、請求項17記載の型。
- フェイスコートが、アルミナをさらに含み、重量分率でのアルミナのレベルが、型のバルク内に存在するレベルよりもフェイスコート内で少なくとも20パーセント低く、重量分率でのカルシウムモノアルミネートのレベルが、型のバルク内に存在するレベルよりもフェイスコート内で少なくとも20パーセント高く、重量分率でのマイエナイトのレベルが、型のバルク内に存在するレベルよりもフェイスコート内で少なくとも50パーセント低い、請求項17記載の型。
- 炭化ケイ素が、半径方向、または軸方向および半径方向の両方で段階的である、請求項17記載の型。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US14/295,506 | 2014-06-04 | ||
US14/295,506 US10391547B2 (en) | 2014-06-04 | 2014-06-04 | Casting mold of grading with silicon carbide |
Publications (2)
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JP2015229194A JP2015229194A (ja) | 2015-12-21 |
JP6563691B2 true JP6563691B2 (ja) | 2019-08-21 |
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JP2015108050A Expired - Fee Related JP6563691B2 (ja) | 2014-06-04 | 2015-05-28 | 段階化した炭化ケイ素を有する鋳型 |
Country Status (6)
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US (1) | US10391547B2 (ja) |
EP (1) | EP2952597A1 (ja) |
JP (1) | JP6563691B2 (ja) |
CN (1) | CN105268906B (ja) |
BR (1) | BR102015013035A2 (ja) |
CA (1) | CA2893052A1 (ja) |
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ITUB20154905A1 (it) * | 2015-10-20 | 2017-04-20 | Nuovo Pignone Tecnologie Srl | Metodo di produzione di pale di turbina |
CN109312443B (zh) * | 2016-06-17 | 2020-11-27 | Agc株式会社 | 带陶瓷覆膜的构件和使用了该构件的玻璃制品的生产设备 |
FR3068271B1 (fr) * | 2017-06-29 | 2021-12-10 | Safran Aircraft Engines | Procede de fonderie avec coulee en moule chaud |
US11077488B2 (en) | 2018-05-11 | 2021-08-03 | Compagnie Generale Des Etablissements Michelin | Casting process with variable index |
KR102341178B1 (ko) * | 2019-12-13 | 2021-12-21 | 천지산업주식회사 | 수평형 원심 주조를 이용한 TiAl 합금계 기계부품 제조방법 |
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2014
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CA2893052A1 (en) | 2015-12-04 |
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US10391547B2 (en) | 2019-08-27 |
CN105268906B (zh) | 2020-01-21 |
BR102015013035A2 (pt) | 2018-02-27 |
EP2952597A1 (en) | 2015-12-09 |
US20150352630A1 (en) | 2015-12-10 |
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