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    Method for producing honeycomb structure and method for producing electrically heating support
    1.
    发明授权
    Method for producing honeycomb structure and method for producing electrically heating support 有权

    公开(公告)号：US11969721B2

    公开(公告)日：2024-04-30

    申请号：US17644836

    申请日：2021-12-17

    申请人： NGK INSULATORS, LTD.

    发明人： Masahiro Tokuda ,  Takashi Noro

    IPC分类号： B01J35/04 ,  B01J21/18 ,  B01J35/56 ,  B01J37/00 ,  B01J37/08 ,  H05B6/62

    CPC分类号： B01J35/56 ,  B01J21/18 ,  B01J37/0009 ,  B01J37/08 ,  H05B6/62

    摘要： A method for producing a honeycomb structure includes: a forming step of extruding a forming raw material containing a ceramic raw material mainly based on silicon carbide and metal silicon to obtain a honeycomb formed body, the honeycomb formed body comprising: an outer peripheral wall; and partition walls; a drying step of drying the honeycomb formed body to obtain a honeycomb dried body; and a firing step of firing the honeycomb dried body to obtain a honeycomb fired body. The drying step includes: a first drying step of subjecting the honeycomb formed body to dielectric drying at a frequency of from 2 to 200 MHz so that a moisture scattering rate of the honeycomb formed body after dielectric drying is from 30 to 85%; and a second drying step of subjecting the honeycomb formed body having the moisture scattering rate of from 30 to 85% to hot air drying.

    Heat exchanger
    3.
    发明授权
    Heat exchanger 有权

    公开(公告)号：US10234209B2

    公开(公告)日：2019-03-19

    申请号：US14856640

    申请日：2015-09-17

    申请人： NGK Insulators, Ltd.

    发明人： Masahiro Tokuda ,  Tatsuo Kawaguchi ,  Makoto Miyazaki

    IPC分类号： F28D7/00 ,  F28F21/04 ,  F28F7/02 ,  F28D7/10 ,  F28D21/00 ,  F01N3/04 ,  F01N3/10 ,  F01N3/28 ,  F01N3/02 ,  F28F1/06 ,  F28F1/08

    摘要： To provide a heat exchanger that can control temperatures of fluids to be heat-exchanged. A heat exchanger 30 includes a honeycomb structure 1, a second fluid flow through portion 26 located at an outer periphery side of the honeycomb structure 1 serving as a flow passage for a second fluid, and a third fluid flow through portion 27 located at an outer periphery side of the second fluid flow through portion 26 serving as a flow passage for a third fluid. Cells 3 of the honeycomb structure 1 serve as a first fluid flow through portion 25 through which the first fluid passes. With the heat exchanger 30, the first fluid, the second fluid, and the third fluid can be heat-exchanged without being mixed with one another. Constituting the fluid flow passage with three flow passages allows controlling temperatures of two fluids to be heat-exchanged by the residual fluid.