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公开(公告)号:WO2019023186A1
公开(公告)日:2019-01-31
申请号:PCT/US2018/043411
申请日:2018-07-24
申请人: CORNING INCORPORATED
发明人: CASTILONE, Robert Joseph , FLYNN, Cecilia Sarah , LEWIS, Mark Alan , MURRAY, William Joseph , RAVICHANDRAN, Manivannan , SHAVER, Rachel Marie , WALTON, Molly Kyser
IPC分类号: C04B35/01 , C04B35/63 , C04B35/632 , C04B35/64
CPC分类号: C04B35/632 , C04B35/10 , C04B35/185 , C04B35/195 , C04B35/478 , C04B35/565 , C04B35/63 , C04B35/64 , C04B2235/3206 , C04B2235/3217 , C04B2235/3232 , C04B2235/3286 , C04B2235/3418 , C04B2235/3463 , C04B2235/3481 , C04B2235/5436 , C04B2235/6021 , C04B2235/77
摘要: Green ceramic mixture for extruding into an extruded green body includes one or more inorganic components selected from the group consisting of ceramic ingredients, inorganic ceramic-forming ingredients, and combinations thereof, at least one mineral oil, and from about 0.01 wt% to about 0.45 wt% of an antioxidant based on a total weight of the inorganic component(s), by super addition. The mineral oil has a kinematic viscosity of ≥ about 1.9 cSt at 100° C. The at least one antioxidant may have a degradation-rate peak temperature that is greater than the degradation-rate peak temperature of the at least one mineral oil. In some embodiments, the at least one mineral oil includes greater than about 20 wt% alkanes with greater than 20 carbons, based on a total weight of the at least one mineral oil. Methods of making an unfired extruded body using the batch mixture are also disclosed.
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公开(公告)号:WO2022046457A1
公开(公告)日:2022-03-03
申请号:PCT/US2021/046195
申请日:2021-08-17
申请人: CORNING INCORPORATED
IPC分类号: C04B35/195 , B28B11/24 , C04B35/638 , C04B35/64 , C04B38/00
摘要: A method for firing a green honeycomb body and for manufacturing a cordierite honeycomb body. The honeycomb body is heated from an initial kiln temperature to a first kiln temperature that is from about 300°C to 400°C, at an oxygen concentration greater than 16%. The honeycomb body is heated to a second kiln temperature that is from about 600°C to 700°C at a second heating rate of greater than 125°C/hr. The honeycomb body is heated to a third kiln temperature that is from about 800°C to 900°C at a third heating rate that is less than or equal to the second heating rate. The honeycomb body is heated to a fourth kiln temperature that is from about 1300°C to 1450°C at a fourth heating rate that is less than or equal to the third heating rate.
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