Invention Grant
- Patent Title: Method for controlling shrinkage of formed ceramic body
- Patent Title (中): 控制成型陶瓷体收缩的方法
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Application No.: US11182994Application Date: 2005-07-15
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Publication No.: US07655180B2Publication Date: 2010-02-02
- Inventor: Yukihisa Takeuchi , Tsutomu Nanataki , Koichi Iwata , Katsuyuki Takeuchi , Takuji Kimura
- Applicant: Yukihisa Takeuchi , Tsutomu Nanataki , Koichi Iwata , Katsuyuki Takeuchi , Takuji Kimura
- Applicant Address: JP Nagoya
- Assignee: NGK Insulators, Ltd.
- Current Assignee: NGK Insulators, Ltd.
- Current Assignee Address: JP Nagoya
- Agency: Burr & Brown
- Priority: JP2004-246953 20040826
- Main IPC: B28B1/00
- IPC: B28B1/00

Abstract:
A method for controlling the shrinkage of ceramic formed bodies is provided, including performing a preliminary test to determine an average shrinkage of ceramic formed bodies made from test lots of a ceramic powder, and determining a linear correlation between the average shrinkage and measured amounts of the ground test lots removed from a ball mill during a specific milling time interval. A batch of the ceramic powder is then ground, an amount of the ground ceramic powder removed from the ball mill during the specific time interval is measured, and the linear correlation is used to estimate the shrinkage of a ceramic body made therefrom. The difference between a target shrinkage and the estimated shrinkage is determined, and one or more of the processing conditions used to form the ceramic body are changed to offset the difference.
Public/Granted literature
- US20060043648A1 Method for controlling shrinkage of formed ceramic body Public/Granted day:2006-03-02
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