A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SINTERING MOLD AND ITS PRODUCTION METHOD
To enable a short-time sintering to be performed by the production using a discharge plasma-sintering method; to achieve cost reduction for a sintering mold; to prevent dimensional accuracy of a molded article from being degraded due to the deformation of the mold and prevent efficiency in mass production of a product from being deteriorated due to breakage of the mold, wherein for example, even if the sintering mold is used for a long period as a mold for a discharge plasma sintering under a high-pressure sintering condition of about 400 MPa at the temperature of about 2,000°C, crystalline particles of the mold do not grow and the deformation, breakage and the like of the mold do not occur; and to enable reutilization for a long-time sintering in another conditions of high temperature, high pressure, and the like.SOLUTION: A sintering mold consists of a titanium diboride-titanium nitride sintered body obtained by sintering a mixed powder through a discharge plasma-sintering method, wherein the mixed powder is obtained by mixing 16.5-95.5 wt.% of titanium diboride with 4.5-83.5 wt.% of titanium nitride.SELECTED DRAWING: Figure 1
【課題】放電プラズマ焼結法を用いて作製することにより短時間焼結が可能となり、焼結用型のコスト低減を図ることができ、例えば、約２，０００℃程度の温度、約４００ＭＰａ程度の高圧の焼結条件での放電プラズマ焼結用型として長時間に使用したとしても、型の結晶粒子成長、型の変形や破損等はなく、型の変形による成形品の寸法精度の低下や型破損による製品量産効率の悪化を防ぐことができ、他の高温高圧等における長時間焼結に再利用することもできる。【解決手段】焼結用の型であって、型は、二硼化チタン粉末と窒化チタン粉末とを二硼化チタン粉末１６．５重量％以上９５．５重量％以下、窒化チタン粉末４．５重量％以上８３．５重量％以下の混合割合とした混合粉末を、放電プラズマ焼結法を用いて焼結した、二硼化チタン窒化チタン焼結体からなる。【選択図】図１
SINTERING MOLD AND ITS PRODUCTION METHOD
To enable a short-time sintering to be performed by the production using a discharge plasma-sintering method; to achieve cost reduction for a sintering mold; to prevent dimensional accuracy of a molded article from being degraded due to the deformation of the mold and prevent efficiency in mass production of a product from being deteriorated due to breakage of the mold, wherein for example, even if the sintering mold is used for a long period as a mold for a discharge plasma sintering under a high-pressure sintering condition of about 400 MPa at the temperature of about 2,000°C, crystalline particles of the mold do not grow and the deformation, breakage and the like of the mold do not occur; and to enable reutilization for a long-time sintering in another conditions of high temperature, high pressure, and the like.SOLUTION: A sintering mold consists of a titanium diboride-titanium nitride sintered body obtained by sintering a mixed powder through a discharge plasma-sintering method, wherein the mixed powder is obtained by mixing 16.5-95.5 wt.% of titanium diboride with 4.5-83.5 wt.% of titanium nitride.SELECTED DRAWING: Figure 1
【課題】放電プラズマ焼結法を用いて作製することにより短時間焼結が可能となり、焼結用型のコスト低減を図ることができ、例えば、約２，０００℃程度の温度、約４００ＭＰａ程度の高圧の焼結条件での放電プラズマ焼結用型として長時間に使用したとしても、型の結晶粒子成長、型の変形や破損等はなく、型の変形による成形品の寸法精度の低下や型破損による製品量産効率の悪化を防ぐことができ、他の高温高圧等における長時間焼結に再利用することもできる。【解決手段】焼結用の型であって、型は、二硼化チタン粉末と窒化チタン粉末とを二硼化チタン粉末１６．５重量％以上９５．５重量％以下、窒化チタン粉末４．５重量％以上８３．５重量％以下の混合割合とした混合粉末を、放電プラズマ焼結法を用いて焼結した、二硼化チタン窒化チタン焼結体からなる。【選択図】図１
SINTERING MOLD AND ITS PRODUCTION METHOD
焼結用型及びその作製方法
JABRI KHALED (author) / SATO TOMOHIRO (author) / TAKEI SHINICHI (author) / KOIDE MANABU (author)
2019-07-25
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015