JP6294869B2 - 成形体の乾燥方法 - Google Patents
成形体の乾燥方法 Download PDFInfo
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- JP6294869B2 JP6294869B2 JP2015508320A JP2015508320A JP6294869B2 JP 6294869 B2 JP6294869 B2 JP 6294869B2 JP 2015508320 A JP2015508320 A JP 2015508320A JP 2015508320 A JP2015508320 A JP 2015508320A JP 6294869 B2 JP6294869 B2 JP 6294869B2
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- 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
- C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/638—Removal thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D12/00—Displacing liquid, e.g. from wet solids or from dispersions of liquids or from solids in liquids, by means of another liquid
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- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
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- 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
- C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/005—Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids
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- 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
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- 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
- C04B2235/604—Pressing at temperatures other than sintering temperatures
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- 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
- C04B2235/606—Drying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/02—Ceramic articles or ceramic semi-finished articles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Molecular Biology (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Powder Metallurgy (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Extraction Or Liquid Replacement (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Description
第1実施形態は、「離型」後の成形体(成形型から取り出された後の成形体)の乾燥方法に関する。この成形体は、セラミックス粉末又は金属粉末、有機バインダ、及び溶媒を含むスラリーを成形型に投入し、成形型内でスラリーを成形することで得られる。このスラリーには、必要に応じて、可塑剤、分散助剤等も含まれる。セラミックス原料粉体及び/又は金属粉体は、成形体を構成する主原料の粉体である。各成分の含有割合は、セラミックス原料粉体及び/又は金属粉体が10〜15体積%、有機バインダが5〜20体積%、溶媒が60〜70体積%、可塑剤が2〜5体積%、分散助剤が2〜5体積%とされ得る。この成形体は多孔質であることが好適である。この場合、成形体の気孔率は20体積%以上且つ90体積%以下であることが好適である。
次に、第2実施形態について説明する。この第2実施形態は、「離型」前の成形体(成形型に入った状態の成形体)が代替フロンに浸漬される点においてのみ、「離型」後の成形体(成形型から取り出された後の成形体)が代替フロンに浸漬される上記第1実施形態と異なる。以下、第2実施形態において上記第1実施形態と異なる点についてのみ説明する。
Claims (5)
- セラミックス粉末又は金属粉末、バインダ、及び、前記バインダを溶解する溶媒を含むスラリーを成形して得られた成形体を乾燥する、成形体の乾燥方法であって、
前記スラリーの成形に使用された成形型に前記成形体が入った状態で、常圧下にて、1気圧での沸点が95℃以下であり且つ前記溶媒と相溶し前記バインダを溶解しない液体に、前記成形体を浸漬することによって、前記成形体の内部において前記成形体に含まれる前記溶媒を前記液体に置換するとともに、前記成形体が前記液体に浸漬された状態にて前記成形体が前記成形型から自然に分離する第1工程であって、前記成形型が、前記液体が内部に侵入できない程度に緻密な部材で構成され、前記成形体が前記成形型に入った状態では前記成形体の表面の一部が外部に露呈している、第1工程と、
前記第1工程後、前記成形体を前記液体から取り出して、前記成形体に含まれる前記液体を揮発除去する第2工程と、
を含む、成形体の乾燥方法。 - 請求項1に記載の成形体の乾燥方法において、
前記液体は、代替フロンである、成形体の乾燥方法。 - 請求項1又は2に記載の成形体の乾燥方法において、
前記溶媒の1気圧での沸点が120℃以上である、成形体の乾燥方法。 - 請求項1〜3の何れか一項に記載の成形体の乾燥方法において、
前記バインダは、化学反応によってウレタン樹脂となるウレタン前駆体である、成形体の乾燥方法。 - 請求項1〜4の何れか一項に記載の成形体の乾燥方法において、
前記第2工程は、常圧より低い圧力下で実行される、成形体の乾燥方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013063133 | 2013-03-26 | ||
JP2013063133 | 2013-03-26 | ||
PCT/JP2014/057140 WO2014156768A1 (ja) | 2013-03-26 | 2014-03-17 | 成形体の乾燥方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2014156768A1 JPWO2014156768A1 (ja) | 2017-02-16 |
JP6294869B2 true JP6294869B2 (ja) | 2018-03-14 |
Family
ID=51623749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2015508320A Active JP6294869B2 (ja) | 2013-03-26 | 2014-03-17 | 成形体の乾燥方法 |
Country Status (4)
Country | Link |
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US (1) | US10183893B2 (ja) |
JP (1) | JP6294869B2 (ja) |
DE (1) | DE112014001704B4 (ja) |
WO (1) | WO2014156768A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3095142B1 (fr) * | 2019-04-18 | 2023-08-25 | Isp System | Procédé et dispositif de fabrication de préformes destinées à la brasure de composants électroniques, photoniques, thermiques ou mécaniques. |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3901742A (en) * | 1974-04-11 | 1975-08-26 | Gen Electric | Removal of lubricants and binders from sinterable powder components |
US4225345A (en) * | 1978-08-08 | 1980-09-30 | Adee James M | Process for forming metal parts with less than 1 percent carbon content |
JPS5726105A (en) * | 1980-07-08 | 1982-02-12 | Emu Adeii Jieemusu | Molding of metal parts |
JPS61155264A (ja) | 1984-12-26 | 1986-07-14 | 住友重機械工業株式会社 | 液化した流体により成形体中のバインダ−を除去する方法 |
JP2651864B2 (ja) * | 1988-04-29 | 1997-09-10 | ユケン工業株式会社 | 非可塑性材料の成形方法 |
EP0374780A1 (en) | 1988-12-20 | 1990-06-27 | Daikin Industries, Limited | Solvents containing dichlorotetrafluoropropane |
JPH02289693A (ja) * | 1988-12-22 | 1990-11-29 | Daikin Ind Ltd | 共沸溶剤組成物 |
JPH04170357A (ja) * | 1990-11-05 | 1992-06-18 | Tokin Corp | 脱脂性磁性粉末成形体及びその脱脂方法 |
JPH059507A (ja) * | 1991-07-02 | 1993-01-19 | Nkk Corp | 粉体の成形方法 |
JPH0533006A (ja) * | 1991-07-31 | 1993-02-09 | Komatsu Ltd | 粉末射出焼結体の製造方法 |
JPH10110201A (ja) * | 1996-10-03 | 1998-04-28 | Komatsu Ltd | 脱脂方法およびそれにより得られる脱脂体並びに焼結体 |
JP4063906B2 (ja) * | 1996-05-20 | 2008-03-19 | 三井・デュポンフロロケミカル株式会社 | 洗浄方法 |
JP4237898B2 (ja) | 1999-10-25 | 2009-03-11 | クボタ松下電工外装株式会社 | 無機質板生板の離型方法 |
JP2003286503A (ja) * | 2002-03-28 | 2003-10-10 | Shizuoka Prefecture | 金属粉末射出成形用有機バインダ |
JP2009029683A (ja) | 2007-07-30 | 2009-02-12 | Fujinon Corp | 成形品の離型方法及び装置 |
US8962749B2 (en) | 2008-02-19 | 2015-02-24 | Ngk Insulators, Ltd. | Ceramic green sheet and method for producing the same |
EP2679360B1 (en) | 2011-02-21 | 2019-07-10 | NGK Insulators, Ltd. | Method for manufacturing powder compact, and powder compact |
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2014
- 2014-03-17 JP JP2015508320A patent/JP6294869B2/ja active Active
- 2014-03-17 WO PCT/JP2014/057140 patent/WO2014156768A1/ja active Application Filing
- 2014-03-17 DE DE112014001704.3T patent/DE112014001704B4/de active Active
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2015
- 2015-09-22 US US14/861,092 patent/US10183893B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2014156768A1 (ja) | 2014-10-02 |
US10183893B2 (en) | 2019-01-22 |
DE112014001704T5 (de) | 2015-12-17 |
JPWO2014156768A1 (ja) | 2017-02-16 |
US20160046530A1 (en) | 2016-02-18 |
DE112014001704B4 (de) | 2018-01-04 |
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