JP2008142781A - 使い捨て薄壁コアダイ、その製造方法並びに該コアダイを用いて製造した物品 - Google Patents
使い捨て薄壁コアダイ、その製造方法並びに該コアダイを用いて製造した物品 Download PDFInfo
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- JP2008142781A JP2008142781A JP2007317839A JP2007317839A JP2008142781A JP 2008142781 A JP2008142781 A JP 2008142781A JP 2007317839 A JP2007317839 A JP 2007317839A JP 2007317839 A JP2007317839 A JP 2007317839A JP 2008142781 A JP2008142781 A JP 2008142781A
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- core
- wax
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- core die
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6269—Curing of mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6026—Computer aided shaping, e.g. rapid prototyping
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6028—Shaping around a core which is removed later
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
【解決手段】 剪断速度70s−1以下で試験して室温で約1〜約1000Pa・sの粘度及び0.6未満の流動性指数を有するスラリーを、約1.5〜約10mmの平均壁厚を有する薄壁使い捨てコアダイ(100)内へ及び約7kg/cm2の圧力で注入する段階と、スラリーを硬化して硬化セラミックコアを形成する段階と、硬化セラミックコアから薄壁使い捨てコアダイ(100)を除去する段階と、硬化セラミックコアを焼成して固化セラミックコア(90)を形成する段階とを含んでなる方法。
【選択図】 図5
Description
92 ワックスダイ
94 内面
96 溶融ワックス
98 セラミックシェル
100 薄壁使い捨てコアダイ
102 ワックス翼形部
Claims (14)
- 剪断速度70s−1以下で試験して室温で約1〜約1000Pa・sの粘度及び0.6未満の流動性指数を有するスラリーを、約1.5〜約10mmの平均壁厚を有する薄壁使い捨てコアダイ(100)内へ及び約0.07〜約7kg/cm2の圧力で注入する段階と、
スラリーを硬化して硬化セラミックコアを形成する段階と、
硬化セラミックコアから薄壁使い捨てコアダイ(100)を除去する段階と、
硬化セラミックコアを焼成して固化セラミックコア(90)を形成する段階と
を含んでなる方法。 - 薄壁使い捨てコアダイ(100)が約2〜約8mmの平均壁厚を有する、請求項1記載の方法。
- 金属を含むワックスダイ(92)内に固化セラミックコア(90)を配置する段階をさらに
を含む、請求項1記載の方法。 - 固化セラミックコア(90)とワックスダイ(92)の間にワックスを注入する段階をさらに含む、請求項3記載の方法。
- 注入したワックスを冷却して固化セラミックコア(90)を内包したワックス部品を形成する段階をさらに含む、請求項4記載の方法。
- セラミック粒子を含有するスラリーにワックス部品を浸漬する段階をさらに含む、請求項5記載の方法。
- ワックス部品を焼成処理に付してセラミック外側シェルを形成る段階をさらに含む、請求項6記載の方法。
- 焼成処理中にワックス部品からワックスを除去する段階をさらに含む、請求項7記載の方法。
- 溶融金属をセラミック外側シェル中に導入して所望の金属部品を形成する段階をさらに含む、請求項7記載の方法。
- 前記金属部品が翼形部である、請求項9記載の方法。
- 請求項1記載の方法で製造される物品。
- 厚さ約1.5〜約10mmの複数の壁を有するコアダイ(100)であって、壁がポリマーを含んでいて、約0.07〜約7kg/cm2の静水圧による永久変形に耐えるのに有効な強度を有するコアダイ(100)。
- 前記使い捨てコアダイが、アクリロニトリル−ブタジエン−スチレン、天然ワックス、合成ワックス、脂肪酸エステル、紫外線(UV)硬化アクリレート又はこれらの1種以上を備える組合せを含む、請求項12記載のコアダイ(100)。
- 請求項12記載のコアダイ(100)を用いて製造された物品。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/609,117 | 2006-12-11 | ||
US11/609,117 US7487819B2 (en) | 2006-12-11 | 2006-12-11 | Disposable thin wall core die, methods of manufacture thereof and articles manufactured therefrom |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008142781A true JP2008142781A (ja) | 2008-06-26 |
JP5571282B2 JP5571282B2 (ja) | 2014-08-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007317839A Active JP5571282B2 (ja) | 2006-12-11 | 2007-12-10 | 使い捨て薄壁コアダイ、その製造方法並びに該コアダイを用いて製造した物品 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7487819B2 (ja) |
EP (1) | EP1932604B1 (ja) |
JP (1) | JP5571282B2 (ja) |
CN (1) | CN101219461B (ja) |
Cited By (3)
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JP2017537250A (ja) * | 2014-10-15 | 2017-12-14 | シーメンス アクチエンゲゼルシヤフトSiemens Aktiengesellschaft | ガスタービンエンジン内で使用可能な構成部品を形成するためのダイカストシステム |
JP2021062406A (ja) * | 2017-08-29 | 2021-04-22 | ゼネラル・エレクトリック・カンパニイ | セラミックコア |
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JP2017537250A (ja) * | 2014-10-15 | 2017-12-14 | シーメンス アクチエンゲゼルシヤフトSiemens Aktiengesellschaft | ガスタービンエンジン内で使用可能な構成部品を形成するためのダイカストシステム |
JP2021062406A (ja) * | 2017-08-29 | 2021-04-22 | ゼネラル・エレクトリック・カンパニイ | セラミックコア |
JP7088612B2 (ja) | 2017-08-29 | 2022-06-21 | ゼネラル・エレクトリック・カンパニイ | セラミックコアの製造方法及びインベストメント鋳造用セラミックコアの製造方法 |
US11389861B2 (en) | 2017-08-29 | 2022-07-19 | General Electric Company | Carbon fibers in ceramic cores for investment casting |
Also Published As
Publication number | Publication date |
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CN101219461A (zh) | 2008-07-16 |
US20080135722A1 (en) | 2008-06-12 |
JP5571282B2 (ja) | 2014-08-13 |
EP1932604B1 (en) | 2017-08-23 |
CN101219461B (zh) | 2013-05-29 |
EP1932604A1 (en) | 2008-06-18 |
US7487819B2 (en) | 2009-02-10 |
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