A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PRODUCTION METHOD OF SINTERED BODY AND SINTERED BODY
To provide a production method capable of sufficiently reducing a ratio of bubbles remaining in a sintered body.SOLUTION: The production method includes a molding step of forming a powder containing an inorganic powder into a desired shape to obtain a mold article, a firing step of firing the mold article to obtain a sintered body, and a subsequent cooling step of cooling the mold article. The firing step includes a first step of firing the mold article under an atmosphere of a first pressure of less than 1 atmosphere and a second step of firing the mold article in an atmosphere of a second pressure that is higher than the first pressure after vacuum breaking of the firing atmosphere during the first firing step.SELECTED DRAWING: Figure 1
【課題】本発明は、焼結体内部に残存する気泡の、焼結体に対して占める割合を十分に小さくすることができる焼結体の製造方法を提供する。【解決手段】無機粉末を含む粉体を所望の形状に成形することにより成形物を得る成形工程と、前記成形物を焼成して焼結体を得る焼成工程と、前記焼成工程の後に、前記成形物を冷却する冷却工程とを備え、前記焼成工程は、前記成形物を１気圧未満の圧力である第１圧力の雰囲気下で焼成する第１焼成工程と、前記第１焼成工程中に焼成雰囲気の真空破壊を行って、前記成形物を前記第１圧力よりも高い圧力である第２圧力の雰囲気下で焼成する第２焼成工程とを備える。【選択図】図１
PRODUCTION METHOD OF SINTERED BODY AND SINTERED BODY
To provide a production method capable of sufficiently reducing a ratio of bubbles remaining in a sintered body.SOLUTION: The production method includes a molding step of forming a powder containing an inorganic powder into a desired shape to obtain a mold article, a firing step of firing the mold article to obtain a sintered body, and a subsequent cooling step of cooling the mold article. The firing step includes a first step of firing the mold article under an atmosphere of a first pressure of less than 1 atmosphere and a second step of firing the mold article in an atmosphere of a second pressure that is higher than the first pressure after vacuum breaking of the firing atmosphere during the first firing step.SELECTED DRAWING: Figure 1
【課題】本発明は、焼結体内部に残存する気泡の、焼結体に対して占める割合を十分に小さくすることができる焼結体の製造方法を提供する。【解決手段】無機粉末を含む粉体を所望の形状に成形することにより成形物を得る成形工程と、前記成形物を焼成して焼結体を得る焼成工程と、前記焼成工程の後に、前記成形物を冷却する冷却工程とを備え、前記焼成工程は、前記成形物を１気圧未満の圧力である第１圧力の雰囲気下で焼成する第１焼成工程と、前記第１焼成工程中に焼成雰囲気の真空破壊を行って、前記成形物を前記第１圧力よりも高い圧力である第２圧力の雰囲気下で焼成する第２焼成工程とを備える。【選択図】図１
PRODUCTION METHOD OF SINTERED BODY AND SINTERED BODY
焼結体の製造方法及び焼結体
MITO TAKAYUKI (author) / NOZU SHIGEMI (author) / FUKUSHIMA KANEKAZU (author)
2018-12-13
Patent
Electronic Resource
Japanese
SINTERED BODY TOOL USING SINTERED BODY AND SINTERED BODY PRODUCTION METHOD
| European Patent Office | 2017
SINTERED BODY, TOOL USING SINTERED BODY, AND SINTERED BODY PRODUCTION METHOD
| European Patent Office | 2016
ALUMINA SINTERED BODY PRODUCTION METHOD AND ALUMINA SINTERED BODY
| European Patent Office | 2022
ALUMINUM SINTERED BODY PRODUCTION METHOD AND ALUMINUM SINTERED BODY
| European Patent Office | 2021
ALUMINUM SINTERED BODY PRODUCTION METHOD AND ALUMINUM SINTERED BODY
| European Patent Office | 2022