IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0638731
(2000-08-14)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Christie, Parker & Hale, LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
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A method of forming a porous ceramic matrix for use in an infrared heating unit comprises the steps of mixing ceramic fibers, organic binders and particulate material capable of infrared emissivity with an ionic wetting agent to form a moldable ceramic mixture, and molding the mixture to a desired s
A method of forming a porous ceramic matrix for use in an infrared heating unit comprises the steps of mixing ceramic fibers, organic binders and particulate material capable of infrared emissivity with an ionic wetting agent to form a moldable ceramic mixture, and molding the mixture to a desired shape. A ceramic matrix with infrared emissivity particles substantially uniformly distributed through the matrix is formed which results in a high intensity, high thermal efficiency matrix for use in an infrared heater. In a further aspect, the matrix can be formed using at least two different compositions of ceramic fibers each composition having a different melting temperature. During operation of the matrix in a heater unit over normal operating temperatures, melting and re-crystallization of the ceramic fibers with the lower melting temperature occurs resulting in the creation of crystalline bond regions between the two fiber compositions. This hardens the matrix at the working heated surface increasing the surfaces resistance to erosion and providing a "self-healing" ceramic matrix with an enhanced service life.
대표청구항
▼
A method of forming a porous ceramic matrix for use in an infrared heating unit comprises the steps of mixing ceramic fibers, organic binders and particulate material capable of infrared emissivity with an ionic wetting agent to form a moldable ceramic mixture, and molding the mixture to a desired s
A method of forming a porous ceramic matrix for use in an infrared heating unit comprises the steps of mixing ceramic fibers, organic binders and particulate material capable of infrared emissivity with an ionic wetting agent to form a moldable ceramic mixture, and molding the mixture to a desired shape. A ceramic matrix with infrared emissivity particles substantially uniformly distributed through the matrix is formed which results in a high intensity, high thermal efficiency matrix for use in an infrared heater. In a further aspect, the matrix can be formed using at least two different compositions of ceramic fibers each composition having a different melting temperature. During operation of the matrix in a heater unit over normal operating temperatures, melting and re-crystallization of the ceramic fibers with the lower melting temperature occurs resulting in the creation of crystalline bond regions between the two fiber compositions. 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