HIGH OXYGEN FAST FIRING METHODS FOR CERAMICS MANUFACTURE

    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

    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.