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METHOD FOR MANUFACTURING CERAMIC MOLDING FOR SINTERING AND METHOD FOR MANUFACTURING CERAMIC SINTERED BODY
To provide a method for manufacturing a ceramic molding for sintering capable of manufacturing a ceramic sintered body which has various characteristics such as an extremely small residual gap, no residual stress, is dense and good.SOLUTION: A method for manufacturing a ceramic molding for sintering which performs hydrostatic pressurization using ceramic powder and raw material powder containing a thermoplastic resin having Tg higher than room temperature to mold the powder, and includes adding the ceramic powder and the thermoplastic resin to a solvent so that the thermoplastic resin is 2 mass% or more and 40 mass% or less to the total mass of the ceramic powder and the thermoplastic resin to prepare a raw material slurry; performing wet casting using the raw material powder slurry to form a cast molding and drying the cast molding; applying first-stage hydrostatic pressurization to the cast molding at a temperature lower than Tg of the thermoplastic resin to mold a first-stage pressure molding; heating the first-stage pressure molding to a temperature equal to or higher than Tg of the thermoplastic resin as second-stage hydrostatic pressurization; and performing WIP molding to manufacture a ceramic molding.SELECTED DRAWING: None
【課題】残存空隙が極めて小さく、残留応力もない、緻密で良好な各種特性を有するセラミック焼結体を作製することのできる焼結用セラミックス成形体の作製方法を提供する。【解決手段】セラミックス粉末とＴｇが室温より高い熱可塑性樹脂とを含む原料粉末を用いて静水圧加圧して成形する焼結用セラミックス成形体の作製方法であって、セラミックス粉末及び熱可塑性樹脂を該熱可塑性樹脂がセラミックス粉末及び熱可塑性樹脂の合計質量に対して２質量％以上４０質量％以下となるように溶媒に添加して原料粉末スラリーを調製し、該原料粉末スラリーを用いて湿式鋳込みして鋳込み成形体を形成した後、乾燥し、これを熱可塑性樹脂のＴｇよりも低い温度で第１段の静水圧加圧成形して第１段加圧成形体を形成し、次いでこの第１段加圧成形体を熱可塑性樹脂のＴｇ以上に加熱して第２段の静水圧加圧成形としてＷＩＰ成形を行ってセラミックス成形体を作製する。【選択図】なし
METHOD FOR MANUFACTURING CERAMIC MOLDING FOR SINTERING AND METHOD FOR MANUFACTURING CERAMIC SINTERED BODY
To provide a method for manufacturing a ceramic molding for sintering capable of manufacturing a ceramic sintered body which has various characteristics such as an extremely small residual gap, no residual stress, is dense and good.SOLUTION: A method for manufacturing a ceramic molding for sintering which performs hydrostatic pressurization using ceramic powder and raw material powder containing a thermoplastic resin having Tg higher than room temperature to mold the powder, and includes adding the ceramic powder and the thermoplastic resin to a solvent so that the thermoplastic resin is 2 mass% or more and 40 mass% or less to the total mass of the ceramic powder and the thermoplastic resin to prepare a raw material slurry; performing wet casting using the raw material powder slurry to form a cast molding and drying the cast molding; applying first-stage hydrostatic pressurization to the cast molding at a temperature lower than Tg of the thermoplastic resin to mold a first-stage pressure molding; heating the first-stage pressure molding to a temperature equal to or higher than Tg of the thermoplastic resin as second-stage hydrostatic pressurization; and performing WIP molding to manufacture a ceramic molding.SELECTED DRAWING: None
【課題】残存空隙が極めて小さく、残留応力もない、緻密で良好な各種特性を有するセラミック焼結体を作製することのできる焼結用セラミックス成形体の作製方法を提供する。【解決手段】セラミックス粉末とＴｇが室温より高い熱可塑性樹脂とを含む原料粉末を用いて静水圧加圧して成形する焼結用セラミックス成形体の作製方法であって、セラミックス粉末及び熱可塑性樹脂を該熱可塑性樹脂がセラミックス粉末及び熱可塑性樹脂の合計質量に対して２質量％以上４０質量％以下となるように溶媒に添加して原料粉末スラリーを調製し、該原料粉末スラリーを用いて湿式鋳込みして鋳込み成形体を形成した後、乾燥し、これを熱可塑性樹脂のＴｇよりも低い温度で第１段の静水圧加圧成形して第１段加圧成形体を形成し、次いでこの第１段加圧成形体を熱可塑性樹脂のＴｇ以上に加熱して第２段の静水圧加圧成形としてＷＩＰ成形を行ってセラミックス成形体を作製する。【選択図】なし
METHOD FOR MANUFACTURING CERAMIC MOLDING FOR SINTERING AND METHOD FOR MANUFACTURING CERAMIC SINTERED BODY
焼結用セラミックス成形体の作製方法及びセラミックス焼結体の製造方法
IKARI MASANORI (author) / MATSUMOTO TAKUSHI (author)
2019-11-21
Patent
Electronic Resource
Japanese
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